CN214712427U

CN214712427U - Two-way one-way valve, liquid storage tank and surface cleaning equipment

Info

Publication number: CN214712427U
Application number: CN202120874850.XU
Authority: CN
Inventors: 徐晓龙; 唐成; 段飞; 钟亮
Original assignee: Beijing Shunzao Technology Co Ltd
Current assignee: Beijing Shunzao Technology Co Ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-11-16
Anticipated expiration: 2031-04-26

Abstract

The present disclosure provides a two-way one-way valve, which includes: the gas inlet part is arranged on the seat body, so that gas in the seat body flows to the outside of the seat body through the gas inlet part; and the exhaust part is arranged on the base body, so that the gas outside the base body flows to the inside of the base body through the exhaust part. The present disclosure also provides a liquid storage tank and a surface cleaning device.

Description

Two-way one-way valve, liquid storage tank and surface cleaning equipment

Technical Field

The present disclosure relates to a liquid storage tank and a surface cleaning apparatus.

Background

Surface cleaning devices of the prior art are typically used for wet scrubbing cleaning of hard floors or short hair carpets. Such cleaning devices usually have one or more rolling brushes or cleaning discs made of a woollen material. Stubborn soils on the floor can be scrubbed by the addition of water or a water/cleaner mixture.

When the cleaning device is moved over the dirt, the dirt which has been wiped off by the drum brush and dissolved by the water or the water/detergent mixture is sucked up by the cleaning heads arranged in the direction of movement of the drum brush, and in the technique of providing the cleaning tray, the cleaning head may not be provided and the dirt is directly adsorbed by the cleaning material on the cleaning tray.

However, tough soil is generally difficult to clean, and after the soil is scattered on the floor surface, water is evaporated to form hard-to-remove tough soil on the floor surface. Often, not all of this stubborn dirt is removed by the vacuuming operation during scrubbing, leaving some dirt on the floor, reducing the quality of the cleaning.

The cleaning effect of hot water is remarkably effective on hard floors. The reasonable and effective scheme is that the surface cleaning device is cleaned by heating water, the energy loss of the surface cleaning device is reduced by considering the problems of cruising and water continuation of the cleaning device, and the energy loss is transferred to a water storage base station (supply device). Therefore, a water replenishing base station is arranged, a water storage tank is arranged on the base station, water in the water storage tank is heated, and the water is heated to a temperature suitable for cleaning stubborn stains and is kept. The surface cleaning device returns to the base station, is in butt joint with a base station water tank through a water adding joint, realizes automatic water supplement, and then continues to be cleaned by hot water. Or the cleaning action is finished, the surface cleaning device returns to the base station, and if the clean water tank has residual clean water, the residual clean water can be led back to the water storage tank of the base station.

Therefore, when water is added to or recovered from the clear water tank, it is necessary to discharge gas in the clear water tank or supply gas to the clear water tank. Therefore, a new two-way one-way valve is needed to be designed to enable the gas inside and outside the clean water tank to interact through the two-way one-way valve.

SUMMERY OF THE UTILITY MODEL

In order to solve one of the technical problems, the present disclosure provides a bidirectional one-way valve, a liquid storage tank and a surface cleaning device.

According to an aspect of the present disclosure, there is provided a two-way one-way valve including:

the base body is provided with a plurality of fixing holes,

the air inlet part is arranged on the seat body, so that air in the seat body flows to the outside of the seat body through the air inlet part; and

the exhaust part is arranged on the base body, so that gas outside the base body flows to the inside of the base body through the exhaust part.

According to the two-way one-way valve of at least one embodiment of this disclosure, the air inlet portion includes:

the first connecting part is partially connected to the seat body; and

the part of the second connecting part is connected to the seat body, the first connecting part is connected with the second connecting part, and the connection position of the first connecting part and the second connecting part is positioned at the position, far away from the seat body, of the first connecting part and the second connecting part;

the air pressure in the two-way one-way valve is higher than that in the outside of the two-way one-way valve, and the air in the two-way one-way valve flows to the outside of the two-way one-way valve through the air inlets.

According to the two-way one-way valve of at least one embodiment of the present disclosure, a first opening is formed between the first connecting portion and the second connecting portion, and the first opening is disposed toward the seat body.

According to the two-way one-way valve of at least one embodiment of the present disclosure, the first and second connection portions are formed in a V-shape, and the intake hole is located at a top end of the V-shape.

According to the two-way one-way valve of at least one embodiment of this disclosure, a first included angle is formed between the first connecting portion and the second connecting portion.

According to the two-way one-way valve of at least one embodiment of this disclosure, the gas discharge portion includes:

the part of the third connecting part is connected to the seat body; and

a fourth connecting portion, a part of which is connected to the seat body, and the third connecting portion is connected to the fourth connecting portion, and a connection point of the third connecting portion and the fourth connecting portion is located at a position where the third connecting portion and the fourth connecting portion are close to the seat body;

and a plurality of exhaust holes are formed at the connection part of the third connection part and the fourth connection part, so that when the air pressure outside the bidirectional one-way valve is higher than the air pressure inside the bidirectional one-way valve, the air outside the bidirectional one-way valve flows to the inside of the bidirectional one-way valve through the exhaust holes.

According to the two-way one-way valve of at least one embodiment of the present disclosure, a second opening is formed between the third connecting portion and the fourth connecting portion, and the second opening is disposed toward a direction away from the seat body.

According to the two-way one-way valve of at least one embodiment of the present disclosure, the third and fourth connection parts are formed in a V-shape, and the exhaust hole is located at a top end of the V-shape.

According to the bidirectional one-way valve of at least one embodiment of the present disclosure, a second included angle is formed between the third connection portion and the fourth connection portion.

The two-way one-way valve according to at least one embodiment of the present disclosure further includes:

an intermediate connection portion connected to the first connection portion, the second connection portion, the third connection portion, and the fourth connection portion.

According to the two-way one-way valve of at least one embodiment of this disclosure, the two-way one-way valve adopts the elastic material preparation.

According to the two-way one-way valve of at least one embodiment of the present disclosure, the elastic material includes silicon rubber.

According to another aspect of the present disclosure, there is provided a liquid storage tank including the above-mentioned two-way one-way valve.

According to the liquid storage tank of at least one embodiment of the present disclosure, the liquid storage tank includes a tank body, and the two-way one-way valve is installed to the tank body to supply gas to the inside of the tank body through the two-way one-way valve or discharge the gas from the inside of the tank body.

According to the liquid storage box of at least one embodiment of the disclosure, the box body is provided with a mounting hole, and the bidirectional one-way valve is mounted in the mounting hole of the box body.

A liquid storage tank according to at least one embodiment of the present disclosure further includes:

the water inlet and outlet are formed in the upper wall of the box body; and

and the pivot cover is used for opening or closing the water inlet and outlet, wherein the two-way one-way valve is arranged on the pivot cover so as to supply gas to the inside of the box body or discharge the gas from the inside of the box body when the pivot cover closes the water inlet and outlet.

According to the liquid storage tank of at least one embodiment of the present disclosure, a hole is provided on the pivot cover, and the two-way one-way valve is communicated with the hole of the pivot cover.

the fluid interaction interface is arranged on the box body and communicated with the box body so as to add cleaning liquid into the box body or extract the cleaning liquid in the box body through the fluid interaction interface.

According to at least one embodiment of this disclosure, a liquid reserve tank, the box includes:

a base seat is arranged on the base seat,

the inner shell is arranged on the base, and a space for storing cleaning liquid is enclosed by the inner shell and the base; and

an outer housing disposed outside of the interior and at least partially encasing the inner housing.

According to the liquid storage tank of at least one embodiment of the present disclosure, the base is formed with a first groove, and the lower end of the inner case is inserted into the first groove of the base.

According to the liquid storage tank of at least one embodiment of the present disclosure, the base is formed with a second groove which is located outside the first groove, and a lower end of the outer case is inserted into the second groove.

According to the liquid storage tank of at least one embodiment of the present disclosure, at least a portion of the outer housing and the inner housing are disposed with a predetermined distance therebetween.

According to another aspect of the present disclosure, there is provided a surface cleaning apparatus comprising a tank as described above.

According to at least one embodiment of the present disclosure, the surface cleaning apparatus further comprises a liquid storage tank detachably mounted to the body of the surface cleaning apparatus.

According to at least one embodiment of the present disclosure, the surface cleaning apparatus further comprises a liquid storage tank.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 and 2 are schematic structural views of a tank according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural view of a base according to one embodiment of the present disclosure.

Fig. 4 is a bottom view of a reservoir (with the base removed) according to one embodiment of the present disclosure.

FIG. 5 is a schematic view of a float and filter holder and base mounting arrangement according to one embodiment of the present disclosure.

FIG. 6 is a schematic structural view of a filter holder according to one embodiment of the present disclosure.

FIG. 7 is a schematic view of another angled configuration of a tank according to one embodiment of the present disclosure.

Fig. 8 is a schematic structural view of a two-way, one-way valve according to one embodiment of the present disclosure.

Fig. 9 is a schematic view of another angle configuration of a two-way, one-way valve according to one embodiment of the present disclosure.

Fig. 10 to 12 are schematic sectional structural views of a tank according to an embodiment of the present disclosure.

Fig. 13 to 16 are schematic views of a liquid level detection device according to an embodiment of the present disclosure when detecting liquid levels of tanks having different liquid levels.

FIG. 17 is an exploded schematic view of a fluid level detection apparatus according to one embodiment of the present disclosure.

FIG. 18 is a schematic structural view of a liquid level detection apparatus according to another embodiment of the present disclosure.

The reference numbers in the figures are in particular:

110 liquid storage tank

120 liquid level detection device

121 float

1211 float body

1212 magnetic part

122 float guide

123 magnetic signal sensor

124 guide groove

126 position limiting part

130 case body

131 base

1311 first groove

1312 second recess

1313 first positioning groove

1314 stop

1315 locking part

13151 stop block

1316 second positioning groove

132 inner casing

133 outer casing

1331 operating part

134 water inlet and outlet

140 fluid interaction interface

150 filter

151 water replenishing return pipe

152 filter holder

1521 external flange

1522 fixed part

1523 stop part

160 mounting base

170 card connector actuating part

171 card connector

180 pivoting lid

190 two-way one-way valve

191 seat body

192 air intake part

1921 first connection part

1922 second connection part

1923 air intake hole

193 air exhaust part

1931 third connecting part

1932 fourth connecting part

1933 venting holes.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

Fig. 8 is a schematic structural view of a two-way, one-way valve according to one embodiment of the present disclosure. Fig. 9 is a schematic view of another angle configuration of a two-way, one-way valve according to one embodiment of the present disclosure.

As shown in fig. 8 and 9, the present disclosure provides a two-way one-way valve, which includes:

the base body 191 is provided with a plurality of grooves,

the air inlet 192 is arranged on the seat body 191, so that air in the seat body 191 flows to the outside of the seat body 191 through the air inlet 192; and

the exhaust part 193, the exhaust part 193 is disposed on the seat body 191, so that the gas outside the seat body 191 flows into the interior of the seat body 191 through the exhaust part 193.

As one implementation form, the air intake portion 192 includes:

a first connection portion 1921, a portion of the first connection portion 1921 being connected to the base 191; and

second connecting portion 1922, a portion of second connecting portion 1922 is connected to base 191, and first connecting portion 1921 is connected to second connecting portion 1922, and the connection between first connecting portion 1921 and second connecting portion 1922 is located at a position where first connecting portion 1921 and second connecting portion 1922 are far away from base 191;

a plurality of air inlet holes 1923 are opened at a connection portion of the first connection portion 1921 and the second connection portion 1922, so that when the air pressure inside the two-way one-way valve 190 is higher than the air pressure outside the two-way one-way valve 190, the air inside the two-way one-way valve 190 flows to the outside of the two-way one-way valve 190 through the air inlet holes 1923.

In the present disclosure, a first opening is formed between the first connecting portion 1921 and the second connecting portion 1922, and the first opening is disposed toward the base 191.

That is, the first and second connecting

portions

1921 and 1922 are formed in a V-shape, and the intake holes are located at the top end of the V-shape.

Preferably, a first included angle is formed between the first connecting portion 1921 and the second connecting portion 1922, and preferably, the first included angle is about 90 °, for example, 60 ° to 120 °.

Preferably, the exhaust part 193 includes:

a third connecting portion 1931, a portion of the third connecting portion 1931 being connected to the holder body 191; and

a fourth connecting portion 1932, a portion of the fourth connecting portion 1932 being connected to the holder body 191, and the third connecting portion 1931 being connected to the fourth connecting portion 1932,

the connection position of the third connecting portion 1931 and the fourth connecting portion 1932 is located at a position where the third connecting portion 1931 and the fourth connecting portion 1932 are close to the seat body 191.

A plurality of exhaust holes 1933 are opened at a connection position of the third connection portion 1931 and the fourth connection portion 1932, so that when the air pressure outside the two-way one-way valve 190 is higher than the air pressure inside the two-way one-way valve 190, the air outside the two-way one-way valve 190 flows to the inside of the two-way one-way valve 190 through the exhaust holes 1933.

In this disclosure, a second opening is formed between the third connecting portion 1931 and the fourth connecting portion 1932, and the second opening is disposed toward a direction away from the seat body 191.

That is, the third and fourth connecting

portions

1931 and 1932 are formed in a V shape, and the exhaust hole 1933 is located at the tip of the V shape.

Preferably, the third connecting portion 1931 and the fourth connecting portion 1932 form a second included angle therebetween, and preferably, the second included angle is about 90 °, for example, 60 ° to 120 °.

In this disclosure, the two-way one-way valve 190 further includes an intermediate connection portion, the intermediate connection portion is connected to the first connection portion 1921, the second connection portion 1922, the third connection portion 1931 and the fourth connection portion 1932, so that gas can only pass through the inlet hole flows to from the inside of the two-way one-way valve 190 outside the two-way one-way valve 190, and so that gas can only pass through the exhaust hole flows to from the outside of the two-way one-way valve 190 inside the two-way one-way valve 190.

The two-way one-way valve of the present disclosure is made of an elastic material, for example, the air inlet portion and the air outlet portion are made of an elastic material, and preferably, the elastic material is silica gel.

Therefore, when the bidirectional one-way valve is used, due to the special structural design of the air inlet part and the air outlet part, the effect that force is applied to the inner corner of the V shape is inconsistent with the effect that force is applied to the outer corner of the V shape, and the inner corner is applied to form an air pressure cavity more easily, so that the air inlet hole or the air outlet hole is opened; and the air can not form an air pressure cavity at the outer corner, so that the air inlet hole or the air exhaust hole can not be opened, and therefore, when the air pressures at the two sides of the V shape are inconsistent, the air flow at the high air pressure side is exhausted to the low air pressure side through the air inlet hole or the air exhaust hole at the inner corner of the V shape.

As shown in fig. 1 and 2, the present disclosure also provides a tank 110, which includes:

a tank 130, the tank 130 storing a cleaning liquid;

a fluid interface 140, wherein the fluid interface 140 is disposed on the tank 130 and is communicated with the tank 130, so as to add cleaning liquid into the tank 130 or extract cleaning liquid from the tank 130 through the fluid interface 140; and

a liquid level detection device 120, wherein the liquid level detection device 120 is used for detecting the liquid level in the tank body 130.

When the liquid storage tank 110 is used, the liquid level height in the tank body can be accurately obtained, and the operation of water supplementing/returning is accurately realized based on the liquid level height obtained by the liquid level detection device.

Fig. 4 is a bottom view of a reservoir (with the base removed) according to one embodiment of the present disclosure. FIG. 5 is a schematic view of a float and filter holder and base mounting arrangement according to one embodiment of the present disclosure. FIG. 6 is a schematic structural view of a filter holder according to one embodiment of the present disclosure.

In the present disclosure, as shown in fig. 4 to 6, the case 130 includes:

the base plate 131 is provided with a plurality of grooves,

an inner housing 132, wherein the inner housing 132 is disposed on the base 131, and the inner housing 132 and the base 131 enclose a space for storing a cleaning liquid; and

an outer housing 133, the outer housing 133 disposed outside of the interior and at least partially encasing the inner housing 132.

More preferably, the base 131 is formed with a first groove 1311, and the lower end of the inner housing 132 is inserted into the first groove 1311 of the base 131; and preferably, a sealing structure is provided at the junction of the inner housing 132 and the base 131 to prevent the tank from leaking.

Similarly, the base 131 is formed with a second groove 1312, the second groove 1312 being located outside the first groove 1311, and the lower end of the outer case 133 being inserted into the second groove 1312.

Furthermore, a sealing joint is optionally provided at the connection between the outer housing 133 and the base to prevent the cleaning liquid in the tank from leaking out when the liquid leaks between the inner housing 132 and the base 131.

That is, a sealing structure may be provided at the junction of the outer case 133 and the base; however, when the sealing structure formed by the inner housing 132 and the base 131 is relatively reliable, the sealing structure may not be formed at the connection position of the outer housing 133 and the base 131.

In the present disclosure, at least a portion of the outer housing 133 is disposed at a predetermined distance from the inner housing 132.

In the present disclosure, the at least partially wrapping of the inner housing 132 by the outer housing 133 includes: the outer housing 133 entirely encloses the inner housing 132.

Considering that the cleaning liquid in the tank 130 is mainly stored in the lower half of the tank 130 or in the middle-lower portion of the tank 130, based on this, the outer casing 133 wraps the lower half of the inner casing 132 or includes the middle and lower halves of the inner casing 132, and thus the tank 130 is formed in a double structure to effectively prevent the temperature of the cleaning liquid in the tank 130 from dropping.

The liquid storage tank 110 further comprises:

a filter 150, the filter 150 being in communication with the fluid interaction interface 140 to filter cleaning liquid added through the fluid interaction interface 140.

Preferably, the filter 150 is connected to the fluid interaction interface 140 via a water refill return 151 such that both the added cleaning liquid and the reclaimed cleaning liquid pass through the filter 150.

In the present disclosure, the filter 150 is fixed to the base 131 by the filter holder 152.

Preferably, the base 131 is formed with a first seating groove 1313, and the lower end of the filter holder 152 is seated in the first seating groove 1313.

In the present disclosure, a stopper 1314 is formed on a sidewall of the first positioning groove 1313, an outer flange 1521 is formed on a sidewall of the filter holder 152, and a notch is formed on the outer flange 1521, so that when the filter holder 152 is disposed in the first positioning groove 1313, the notch of the outer flange 1521 is engaged with the stopper 1314 to limit rotation of the filter holder 152.

When the filter holder 152 is disposed in the first positioning groove 1313, the outer flange 1521 is located in the first positioning groove 1313.

In this disclosure, at least two fixing portions 1522 are formed on an outer wall surface of the filter holder 152, and the base 131 is provided with at least two locking portions 1315, so that the fixing portions 1522 and the locking portions 1315 are matched to lock the filter holder 152.

Preferably, the locking part 1315 performs locking of the filter holder 152 by restricting up and down movement of the filter holder 152.

The locking portion 1315 is formed with a stopper 13151, and a stopper 1523 is formed on an outer circumferential surface of the filter holder 152 to restrict rotation of the filter holder 152 by engagement of the stopper 13151 and the stopper 1523.

In the present disclosure, it is preferable that the external housing 133 is provided with an operation part 1331 to install or remove the tank 110 to or from the surface cleaning apparatus by operating the operation part 1331.

Wherein the operation portion 1331 is formed in a shape protruding outward from the outer case 133, i.e., in a shape of a handle, and may be integrally formed with the operation portion 1331.

In the present disclosure, as shown in fig. 1 and 7, the liquid storage tank 110 further includes:

and a mounting seat 160, wherein the mounting seat 160 is disposed on the external housing 133 and above the operation portion 1331.

The liquid storage tank 110 further comprises:

a bayonet joint actuator 170, the bayonet joint actuator 170 being movable between a first position and a second position; a through hole is formed in the mounting seat 160, and when the bayonet joint actuating part 170 is in the first position, a part of the bayonet joint actuating part 170 penetrates out of the through hole and is positioned outside the mounting seat 160; when the bayonet head actuator 170 is in the second position, portions of the bayonet head actuator 170 are retracted into the interior of the mount 160.

As an implementation form, the card head actuating portion 170 can move in a vertical direction, so that the first position of the card head actuating portion 170 is the uppermost position of the card head actuating portion 170; the second position of the bayonet joint actuator 170 is the lowermost position of the bayonet joint actuator 170.

In the present disclosure, the outer case 133 is formed with a step, the lower end of the mount 160 is disposed on the step of the outer case 133, and the mount 160 is located outside the outer case 133.

At this time, the inner case 133 may also be stepped such that the cross-sectional area of the upper end of the inner case 133 is smaller than the cross-sectional area of the lower end of the inner case 133.

Preferably, the bayonet joint actuating part 170 is disposed between the mounting seats 160 of the outer housing 133 and slides along the outer wall surface of the outer housing 133 and/or the inner wall surface of the mounting seats 160.

A spring is arranged between the bayonet joint actuating part 170 and the outer housing 133, the spring is in a pre-compression state, and when a downward external force is applied to the bayonet joint actuating part 170, the bayonet joint actuating part 170 is moved downwards, so that the bayonet joint actuating part 170 moves from a first position to a second position; when the external force disappears, the bayonet joint actuator 170 moves from the second position to the first position by the restoring force of the spring.

In the present disclosure, the portion of the latch actuating portion 170 extending out of the mounting base 160 is formed as a latch 171, and the reservoir 110 is fixed to the surface cleaning apparatus by latching the latch 171 to the housing of the surface cleaning apparatus.

An upper surface of the catch 171 is formed to be inclined, and the upper surface of the catch 171 is inclined downward in a direction of mounting the tank 110 to the surface cleaning apparatus, so that a user can conveniently mount the tank 110 to the surface cleaning apparatus.

In the present disclosure, it is preferable that the upper wall of the tank 130 is formed with a water inlet and outlet 134 so that the washing liquid is introduced into the inside of the tank 130 through the water inlet and outlet 134. When the user takes out the reservoir 110, the cleaning liquid may be manually introduced into the interior of the housing 130 through the inlet/outlet port 134, and when the reservoir 110 is inverted, the cleaning liquid remaining in the interior of the housing may be discharged.

In the present disclosure, the liquid storage tank 110 further includes:

a pivoting cover 180, the pivoting cover 180 being rotatably provided to the mounting seat 160 such that the pivoting cover 180 can open and close the water inlet and outlet port 134.

Preferably, the pivoting cover 180 is provided with a hole to allow air to be introduced into or exhausted from the inside of the case 130 through the hole of the pivoting cover.

For example, as shown in fig. 8 and 9, the pivoting cover 180 is provided with a two-way one-way valve 190, and the two-way one-way valve 190 is communicated with a hole of the pivoting cover 180 for supplying or exhausting gas into or from the cabinet.

As one implementation form, the seat body of the two-way one-way valve 190 may be disposed at the pivot cover 180, and the seat body 191 may be cylindrical and communicate with the hole of the pivot cover 180; of course, the seat body 191 may have other shapes, and the shape is not limited in the present disclosure.

The gas inlet 192 of the two-way one-way valve 190 is disposed on the seat body 191 such that gas enters the tank 130 through the seat body 191 and the gas inlet 192; and

the exhaust part 193 of the two-way one-way valve 190 is disposed at the holder body 191 such that gas is exhausted to the outside of the case 130 through the holder body 191 and the exhaust part 193.

In the present disclosure, preferably, the liquid level detection apparatus 120 includes a capacitance liquid level meter and/or an optoelectronic liquid level meter, which are disposed inside and/or outside the tank body 130, so as to detect the liquid level inside the tank body 130 through the capacitance liquid level meter and/or the optoelectronic liquid level meter.

According to an embodiment of the present disclosure, as shown in fig. 10 to 12, the liquid level detection apparatus 120 includes:

a float 121, the float 121 including a float body 1211 and a magnetic portion 1212;

a float guide 122 along which the float 121 is movable in a vertical direction based on a change in liquid level by buoyancy of the liquid; and the number of the first and second groups,

a plurality of magnetic signal sensors 123, the plurality of magnetic signal sensors 123 being disposed in a vertical direction, when the float 121 triggers one of the plurality of magnetic signal sensors 123, the triggered magnetic signal sensor 123 generates a trigger signal.

In the present disclosure, the sectional type liquid level detection of the tank 130 can be realized by providing the plurality of magnetic signal sensors 123. That is, on the inner wall or the outer wall of the box 130, a plurality of magnetic signal sensors are arranged from the bottom to the top, and the liquid level is judged to be at a low liquid level, a medium liquid level or a high liquid level according to three trigger points of high, medium and low.

On the other hand, the liquid level detection device comprises a liquid level meter, and the liquid level in the box body is obtained according to the data detected by the liquid level meter, so that whether the liquid level is in a low liquid level, a medium liquid level or a high liquid level can be judged according to the continuous liquid level signal.

In the present disclosure, the float 121 is disposed inside the tank 130, the plurality of magnetic signal sensors 123 are disposed outside the tank 130 along a vertical direction, the plurality of magnetic signal sensors 123 are disposed at a plurality of different liquid levels, when a certain magnetic signal sensor 123 is triggered (facing or entering a predetermined distance), the magnetic signal sensor 123 generates a trigger signal, the trigger signal is generally an electrical signal, the trigger signal may indicate a current liquid level, for accuracy of liquid level measurement, more than three magnetic signal sensors 123 may be disposed, and the float 121 may be only one.

The float guide portion 122 may be a guide frame structure, and a guide groove 124 (or a guide rail) is formed on the float guide portion 122.

Wherein the magnetic portion 1212 may be a permanent magnet or a magnet, and the float body 1211 may be made of a low-density material, for example, the float body 1211 may be prepared by foamed plastic, wherein the float may be replaced periodically.

In the present disclosure, the number of the magnetic portions 1212 in the float body 1211 may be one, and in this case, the size of the float body 1211, the mass of the magnetic portion, and the installation position of the magnetic portion may be adjusted so that the upper surface of the float is flush with the liquid surface, or so that the magnetic portion is located at the liquid surface when the float floats on the liquid surface.

Of course, the magnetic portion 1212 in the float body 1211 may be provided in plurality, in which case, the at least two magnetic portions 1212 are provided at different heights of the float body 1211 in the vertical direction; at this time, the size of the float body 1211, the mass of the magnetic portion 1212, and the installation position of the magnetic portion 1212 may be adjusted so that the upper surface of the float is flush with the liquid surface, or so that the magnetic portion 1212 positioned uppermost is positioned just at the liquid surface when the float floats on the liquid surface.

Thus, by providing the plurality of magnetic portions 1212, it is possible to ensure that the magnetic signal sensor 123 is triggered by the magnetic portions more stably, and to reduce the probability of the float triggering the magnetic signal sensor 123 failing.

According to a preferred embodiment of the present disclosure, the number of the floats 121 of the liquid level detecting device 120 is two or more, the number of the magnetic signal sensors 123 is one more than the number of the floats 121, the float guide 122 is provided with the same number of guide grooves 124 as the number of the floats 121, the respective floats 121 move along the respective guide grooves 124 based on a change in the liquid level by buoyancy of the liquid, and each magnetic signal sensor 123 can be triggered by only one float.

In the present embodiment, each magnetic signal sensor 123 can be preferably directly opposite to only one float 121, that is, can be triggered by only one float 121, and more preferably, the upper float can trigger the upper sensor and the middle sensor based on the change of the liquid level, and the lower float can trigger only the lower sensor.

Alternatively, it may be provided that the upper float is able to trigger the upper sensor based on a change in the liquid level and the lower float is able to trigger the middle sensor and the lower sensor.

In the present embodiment, the moving range of each float 121 may be defined by the respective guide grooves 124.

According to still another preferred embodiment of the present disclosure, the number of the floats 121 of the liquid level detecting device 120 is two or more, the number of the magnetic signal sensors 123 is one more than the number of the floats 121, the float guide 122 is provided with one less stopper portion 126 than the number of the floats 121, each float 121 moves along the float guide 122 based on a change in the liquid level by buoyancy of the liquid, adjacent two floats 121 are spaced by one stopper portion 126, and each magnetic signal sensor 123 can be triggered by only one float 121.

In this embodiment, the float guide portion 122 has a cavity, each float 121 is disposed in the cavity of the float guide portion 122, and two adjacent floats 121 are separated by a limiting portion 126.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that the number of the floats 121 is two, that is, the upper float and the lower float, and the number of the magnetic signal sensors 123 is three, that is, the upper sensor, the middle sensor, and the lower sensor, the upper sensor and the middle sensor being capable of being triggered by the upper float, and the lower sensor being capable of being triggered by the lower float.

Preferably, the upper float moves between the upper sensor and the middle sensor, the upper float can trigger the upper sensor or the middle sensor based on the change of the liquid level, when the upper float is positioned between the upper sensor and the middle sensor, the upper sensor is not triggered, the middle sensor is not triggered, and the lower float can only trigger the lower sensor based on the change of the liquid level.

According to an alternative preferred embodiment of the present disclosure, the number of the floats 121 of the liquid level detecting device 120 is two, i.e., an upper float and a lower float, and the number of the magnetic signal sensors 123 is three, i.e., an upper sensor, a middle sensor, and a lower sensor, the upper sensor being capable of being triggered only by the upper float, and the middle sensor and the lower sensor being capable of being triggered by the lower float.

In this embodiment, the upper float moves between the upper sensor and the middle sensor, the upper float can only trigger the upper sensor based on the change of the liquid level, and when the upper float is located between the upper sensor and the middle sensor, the upper sensor is not triggered, the middle sensor is not triggered, and the lower float can trigger the middle sensor or the lower sensor based on the change of the liquid level.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that the magnetic portion 1212 is embedded within the float body 1211.

For the liquid level detection device 120 of each of the above embodiments, the magnetic signal sensor 123 may be a hall sensor or a reed pipe device.

With the liquid level detection device 120 of each of the above embodiments, the float guide 122 is provided inside the tank 130, and the magnetic signal sensor 123 is provided outside the tank 130.

In which the float guide 122 may be fixed on an inner wall of the case 130, and the magnetic signal sensor 123 may be fixed on an outer wall of the case 130 or on a support portion adjacent to the case 130.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that when the upper float is located at the highest position of the upper float, the upper float triggers the upper sensor, the upper sensor generates the first trigger signal, and the middle sensor and the lower sensor do not generate the trigger signals.

At this time, the lower float is located at the highest position of the lower float, and the lower float does not trigger the middle sensor and the lower sensor.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that when the upper float is located between the upper sensor and the middle sensor, the upper float does not trigger the upper sensor, and the upper sensor, the middle sensor, and the lower sensor do not generate a trigger signal.

In the liquid level detection device 120 according to each of the above embodiments, it is preferable that the upper float triggers the middle sensor, the middle sensor generates the second trigger signal, and the upper sensor and the lower sensor do not generate the trigger signal when the upper float is located at the lowest position of the upper float and the lower float is higher than the lowest position of the lower float.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that when the upper float is located at the lowest position of the upper float and the lower float is located at the lowest position of the lower float, the upper float triggers the middle sensor, the middle sensor generates the second trigger signal, the lower float triggers the lower sensor, and the lower sensor generates the third trigger signal.

The first, second, and third trigger signals described above are merely to distinguish between trigger signals generated by three different sensors.

For the liquid level detection device 120 of each of the above embodiments, it is preferable that the liquid level detection device further includes a processing device, the processing device is connected in communication with the magnetic signal sensor 123, and the processing device generates a corresponding liquid level indication signal based on the trigger state of each magnetic signal sensor 123.

For example, when the upper sensor generates a first trigger signal, the middle sensor and the lower sensor do not generate trigger signals, the processing device generates a first level indicating signal, which may indicate that the tank 130 is at a full liquid level, as shown in fig. 13.

When the upper sensor, the middle sensor and the lower sensor do not generate the trigger signal, the processing device generates a second liquid level indicating signal, and the second liquid level indicating signal can indicate that the liquid level of the tank body 130 is below the full liquid level and above the middle sensor (the middle sensor position can be set to be a reminding liquid level, i.e., a second preset value of the present disclosure), as shown in fig. 14.

The middle sensor generates a second trigger signal, and the upper and lower sensors do not generate a trigger signal, the processing device generates a third liquid level indicating signal, which may indicate that the liquid level of the tank 130 is below the reminder level and above the lowest liquid level, as shown in fig. 15.

Further, when the middle sensor generates the second trigger signal and the lower sensor generates the third trigger signal, the processing device generates a fourth liquid level indicating signal indicating that the liquid level of the tank 130 is at the lowest liquid level, as shown in fig. 16.

With the liquid level detection device 120 of each of the above embodiments, preferably, when the upper float is located at the highest position of the upper float, the upper float triggers the upper sensor, the upper sensor generates the first trigger signal, the lower float triggers the middle sensor, the middle sensor generates the second trigger signal, and the lower sensor does not generate the trigger signal.

At this time, the lower float is located at the highest position of the lower float, and the lower float triggers the middle sensor.

With the liquid level detection apparatus 120 of each of the above embodiments, preferably, when the upper float is located between the upper sensor and the middle sensor, the upper float does not trigger the upper sensor, the lower float triggers the middle sensor, the middle sensor generates the second trigger signal, and the lower sensor does not generate the trigger signal.

At this time, the lower float is located at the highest position of the lower float, and the lower float does not trigger the lower sensor.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that the upper float does not trigger the upper sensor and the lower float does not trigger the middle sensor and the lower sensor when the upper float is located at the lowest position of the upper float and the lower float is higher than the lowest position of the lower float.

With the liquid level detection device 120 of each of the above embodiments, it is preferable that when the upper float is located at the lowest position of the upper float and the lower float is located at the lowest position of the lower float, the upper float does not trigger the upper sensor, the lower float triggers the lower sensor, and the lower sensor generates the third trigger signal.

For example, the upper sensor generates a first trigger signal, the middle sensor generates a second trigger signal, and the processing device generates a first level indicator signal when the lower sensor does not generate a trigger signal, which may indicate that the tank 130 is at a full liquid level.

The upper sensor does not generate the first trigger signal, the middle sensor generates the second trigger signal, and the processing device generates the second level indicating signal when the lower sensor does not generate the trigger signal, wherein the second level indicating signal can indicate that the liquid level of the tank 130 is below the full liquid level and above the middle sensor (the middle sensor position can be set as the reminding liquid level).

When the upper sensor, the middle sensor and the lower sensor do not generate the trigger signal, the processing device generates a third liquid level indicating signal, and the third liquid level indicating signal can indicate that the liquid level of the box body 130 is below the reminding liquid level and above the lowest liquid level.

The upper sensor does not generate a trigger signal, the middle sensor does not generate a trigger signal, and the lower sensor generates a third trigger signal, the processing device generates a fourth liquid level indicating signal indicating that the liquid level of the tank body 130 is at the lowest liquid level.

For the liquid level detection apparatus 120 of each of the above embodiments, the processing apparatus further includes a communication module, and the processing apparatus can transmit the above-described liquid level indication signal to a terminal device, such as a mobile terminal device like a mobile phone or a desktop computer device.

In the present disclosure, the base 131 of the housing 130 is formed with a second positioning slot 1316, and the lower end of the float guide 122 is disposed in the second positioning slot 1316.

In an alternative embodiment of the present disclosure, as shown in fig. 18, the liquid level detection apparatus 120 includes:

a capacitive liquid level gauge and/or an opto-electronic liquid level gauge for detecting the liquid level within the tank 130.

For example, the capacitance level gauge and/or the photoelectric level gauge may be disposed in the tank 130 or disposed on an outer wall of the tank 130, thereby obtaining a specific height of the liquid level in the tank 130.

In the present disclosure, when the liquid level value detected by the capacitance liquid level meter and/or the photoelectric liquid level meter is 30, calculated by the total liquid level height 100, corresponding to a first preset value; when the liquid level value detected by the capacitance liquid level meter and/or the photoelectric liquid level meter is 70, corresponding to a second preset value; that is, 0-30 (excluding 30) is a low level; 30-70 is the middle liquid level; 70-100 (excluding 70) are high levels.

According to another aspect of the present disclosure, there is provided a surface cleaning apparatus comprising a tank 110 as described above.

In the present disclosure, the reservoir 110 is removably mounted to the body of the surface cleaning apparatus.

Specifically, the liquid storage tank 110 may be mounted to the body of the surface cleaning apparatus by means of a screw fastening, or may be mounted to the body of the surface cleaning apparatus by means of a snap fastening.

Wherein, when liquid reserve tank 110 detachably install in surface cleaning equipment's fuselage, can be provided with the child lock, remove child lock after, joint first actuator part can actuate to demolish liquid reserve tank 110.

On the other hand, the reservoir 110 is non-removably mounted to the body of the surface cleaning apparatus, for example, the reservoir is integrally formed with the body of the surface cleaning apparatus.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1. A two-way, one-way valve, comprising:

the base body is provided with a plurality of fixing holes,

2. The two-way, one-way valve as recited in claim 1, wherein the air intake portion includes:

the first connecting part is partially connected to the seat body; and

3. The two-way one-way valve as claimed in claim 2, wherein a first opening is formed between the first and second connecting portions, the first opening being disposed toward the housing.

4. The two-way one-way valve as claimed in claim 2, wherein the first and second connecting portions are formed in a V-shape, and the intake hole is located at a top end of the V-shape.

5. The two-way, one-way valve as recited in claim 2 wherein the first and second connections form a first angle therebetween.

6. The two-way, one-way valve as recited in claim 1, wherein the exhaust portion comprises:

the part of the third connecting part is connected to the seat body; and

7. The two-way one-way valve as claimed in claim 6, wherein a second opening is formed between the third connecting portion and the fourth connecting portion, the second opening being disposed away from the housing.

8. The two-way one-way valve as claimed in claim 7, wherein the third and fourth connecting portions are formed in a V-shape, and the exhaust hole is located at a top end of the V-shape.

9. The two-way, one-way valve as recited in claim 8 wherein a second angle is formed between the third and fourth connections.

10. The two-way, one-way valve as recited in claim 2 or 6, further comprising:

11. The two-way, one-way valve as claimed in claim 1, wherein the two-way, one-way valve is made of an elastomeric material.

12. The two-way, one-way valve as recited in claim 11 wherein the resilient material comprises silicone.

13. A tank including a two-way, one-way valve as claimed in any one of claims 1 to 12.

14. A tank as claimed in claim 13 wherein said tank includes a housing and said two way one way valve is mounted to said housing to provide gas to or exhaust gas from the interior of said housing through said two way one way valve.

15. The liquid storage tank as claimed in claim 14, wherein the tank body is provided with a mounting hole, and the two-way one-way valve is mounted in the mounting hole of the tank body.

16. The reservoir of claim 13, further comprising:

the water inlet and outlet are formed in the upper wall of the box body; and

17. The tank of claim 16 wherein the pivoting cover has an aperture therein, the two-way, one-way valve communicating with the aperture of the pivoting cover.

18. A tank according to claim 14 or 16 further comprising:

19. The reservoir of claim 18, wherein the tank comprises:

a base seat is arranged on the base seat,

20. The reservoir of claim 19, wherein the base is formed with a first recess, and the lower end of the inner housing is inserted into the first recess of the base.

21. The liquid storage tank as claimed in claim 20, wherein the base is formed with a second recess which is located outside the first recess, and a lower end of the outer housing is inserted into the second recess.

22. A tank according to claim 21 wherein at least part of the outer housing and the inner housing are disposed at a predetermined distance from each other.

23. A surface cleaning apparatus comprising a tank according to any one of claims 13 to 22.

24. A surface cleaning apparatus as claimed in claim 23, characterised in that the reservoir is removably mounted to the body of the surface cleaning apparatus.

25. A surface cleaning apparatus as claimed in claim 24, characterised in that the reservoir is integrally formed with the body of the surface cleaning apparatus.