CN219629560U - Respirator and dish washer - Google Patents

Abstract

The utility model discloses a respirator and a dish washer, relates to the technical field of dish washers, and is used for solving the problem of water leakage of an anti-siphon channel in the dish washer. Wherein, the respirator includes: the anti-siphon device comprises a shell, a drainage channel, an anti-siphon channel, a first non-return piece and a second non-return piece; the drainage channel is formed in the shell and comprises a water inlet and a water outlet, the water inlet is communicated with the water tank, and the water outlet is used for discharging wastewater in the water tank; the anti-siphon channel is positioned in the respirator and comprises a first communication port and a second communication port, the first communication port is communicated with the drainage channel, and the second communication port is communicated with the outside atmosphere; the first check sheet is arranged in the anti-siphon channel and is used for blocking or conducting the anti-siphon channel; the second check sheet is located downstream of the first check sheet on a path from the second communication port to the first communication port. The respirator is used for solving the problem of water leakage of an anti-siphon channel in a dish washer.

Description

Respirator and dish washer

Technical Field

The utility model relates to the technical field of dish washers, in particular to a respirator and a dish washer.

Background

In the prior art, sewage in a water tank of a dish washer enters a drainage channel from a water inlet and is discharged from a water outlet, in the process, the sewage enters the anti-siphon channel through a first communication port of the anti-siphon channel, and in order to prevent the sewage from being discharged to the outside atmosphere from a second communication port of the anti-siphon channel, a non-return structure is arranged in the anti-siphon channel and used for opening or blocking the anti-siphon channel, so that the purpose of anti-siphon is achieved, and meanwhile, the second communication port of the anti-siphon channel is prevented from leaking; after the water is drained, the anti-siphon channel still has a slight water leakage phenomenon due to the insufficient tightness of the non-return structure.

Disclosure of Invention

The utility model provides a respirator and a dish-washing machine, which are used for solving the problem of water leakage of an anti-siphon channel in the dish-washing machine.

In order to achieve the above purpose, the embodiment of the present utility model adopts the following technical scheme:

embodiments of the present utility model provide a respirator that is applied to a dishwasher; the dish washer comprises an inner container and a water tank communicated with the inner container; the breather is arranged on the inner container of the dish-washing machine; the respirator comprises: a housing; the drainage channel is formed in the shell and comprises a water inlet and a water outlet, the water inlet is communicated with the water tank, and the water outlet is used for discharging wastewater in the water tank; the anti-siphon channel is positioned in the respirator and comprises a first communication port and a second communication port, the first communication port is communicated with the drainage channel, and the second communication port is communicated with the outside atmosphere; the first check sheet is arranged in the anti-siphon channel and is used for blocking or conducting the anti-siphon channel; the second check piece is arranged in the anti-siphon channel and used for blocking or conducting the anti-siphon channel, and the second check piece is positioned at the downstream of the first check piece on the path from the second communication port to the first communication port.

When the sewage is discharged by the dish washer, the sewage entering the anti-siphon channel from the drainage channel flows to the second check sheet firstly, and the second check sheet seals the sewage; when part of sewage flows to the first check sheet through the second check sheet, the first check sheet seals the sewage again; therefore, the first check piece and the second check piece are arranged in the anti-siphon channel to perform double blocking on sewage entering the anti-siphon channel, so that the possibility of water leakage of the anti-siphon channel is reduced, and the product quality and the user experience are improved.

In some embodiments, the respirator further comprises: the first air pressure channel comprises a third communication port and a fourth communication port, the third communication port is communicated with the anti-siphon channel, and the fourth communication port is communicated with the external atmosphere; the first non-return piece is used for blocking or conducting the third communication port.

In some embodiments, a first connecting column is further disposed in the anti-siphon channel, and the first connecting column is located at the third communication port of the first air pressure channel; the first non-return piece is provided with a first connecting hole matched with the first connecting column, and is sleeved on the first connecting column through the first connecting hole, so that the first non-return piece can translate in a first direction, and can move between a first position for blocking the third communication port and a second position for opening the third communication port; wherein, the first direction is parallel with the axis direction of first spliced pole.

In some embodiments, a first abutting part protruding towards the direction of the first non-return piece is arranged on the peripheral edge of the third communication port of the first air pressure channel; the first backstop piece is in contact with the first abutment portion when the first backstop piece is in the first position, and the first backstop piece is spaced apart from the first abutment portion when the first backstop piece is in the second position.

In some embodiments, the drainage channel comprises a first drainage branch, a second drainage branch and a third drainage branch, wherein one end of the first drainage branch is communicated with one end of the third drainage branch, the other end of the first drainage branch is formed into the water inlet, and one end of the second drainage branch is communicated with the other end of the third drainage branch, and the other end of the second drainage branch is formed into the water outlet; the first drainage branch and the second drainage branch are positioned on the same side of the third drainage branch, and the third drainage branch arches towards the direction away from the first drainage branch and the second drainage branch; the first communication port of the anti-siphon channel is communicated with the third drainage branch and is arranged close to the other end of the third drainage branch.

In some embodiments, the anti-siphon channel comprises a first anti-siphon segment located between the first and second non-return tabs; the respirator also comprises an auxiliary drainage connector, wherein one end of the auxiliary drainage connector is communicated with the first anti-siphon section, and the other end of the auxiliary drainage connector is communicated with the water tank.

In some embodiments, the anti-siphon channel further comprises a second anti-siphon segment located between the second check tab and the first communication port; the respirator also includes: the second air pressure channel comprises a fifth communication port and a sixth communication port, wherein the fifth communication port is communicated with the second anti-siphon section, and the sixth communication port is communicated with the first anti-siphon section.

In some embodiments, the respirator further comprises: the air pressure balancing channel is formed in the shell and comprises a seventh communication port and an eighth communication port, wherein the seventh communication port is communicated with the inner container, and the eighth communication port is communicated with the external atmosphere; the second communication port of the anti-siphon channel is communicated with the air pressure balance channel.

In some embodiments, the respirator further comprises a rib located on an inner wall of the air pressure equalization channel.

The embodiment of another aspect of the utility model also provides a dishwasher, comprising a liner and a respirator of any one of the above schemes; the respirator is arranged on the outer wall of the inner container.

According to the dish washer provided by the embodiment of the utility model, the respirator of any scheme is arranged, so that the overall performance of the dish washer is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and do not limit the utility model.

FIG. 1 is a schematic illustration of a dishwasher provided in accordance with some embodiments of the present utility model;

FIG. 2 is a schematic view of the interior of the respirator shown in FIG. 1;

FIG. 3 is a schematic view of another angle of the interior of the respirator shown in FIG. 2;

FIG. 4 is a schematic view of another angle of the interior of the respirator shown in FIG. 3, wherein the first and second check sheets are not included;

FIG. 5 is a cross-sectional view of the first check tab shown in FIG. 3, wherein the first check tab is in a first position;

FIG. 6 is a cross-sectional view of the first check tab shown in FIG. 3, wherein the first check tab is in a second position;

fig. 7 is an enlarged view at a shown in fig. 3;

FIG. 8 is a schematic view of the interior of a respirator provided in accordance with further embodiments of the present utility model;

FIG. 9 is a schematic view of another angle of the interior of the respirator shown in FIG. 8;

fig. 10 is an enlarged view at B shown in fig. 9.

Reference numerals:

1000. dish washing machine; 100. a respirator; 110. a housing; 120. a drainage channel; 121. a water inlet; 122. a water outlet; 123. a first drainage branch; 124. a second drainage branch; 125. a third drainage branch; 130. an anti-siphon channel; 131. a first communication port; 133. a first connection post; 134. a first anti-siphon section; 135. a second anti-siphon section; 140. a first non-return tab; 141. a first connection hole; 150. a second non-return tab; 160. a first air pressure passage; 161. a third communication port; 1611. a first abutting portion; 162. a fourth communication port; 170. a second air pressure channel; 171. a sixth communication port; 180. an auxiliary drain joint; 190. an air pressure balancing channel; 191. a blocking rib; 192. a seventh communication port; 193. an eighth communication port; 200. an inner container; 300. a water tank; 400. a first water pump.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, when describing a pipeline, the terms "connected" and "connected" as used herein have the meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In embodiments of the utility model, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

Referring first to fig. 1, fig. 1 is a schematic diagram of a dishwasher 1000 according to some embodiments of the present utility model. The dishwasher 1000 may include: the inner container 200 is arranged inside the outer shell, a cleaning cavity is formed inside the inner container 200, and the cleaning cavity is used for cleaning tableware. The water tank 300 is provided at the bottom of the inner container 200 and communicates with the washing chamber.

Since high-temperature water is used to wash dishes when washing dishes, the temperature in the washing chamber is high, which results in an increase in the air pressure in the washing chamber. In order to balance the air pressure inside and outside the washing chamber, the dishwasher 1000 may further include a breather 100, and the breather 100 is disposed on a sidewall of the inner container 200. The breather 100 communicates the inside and the outside of the washing chamber, and the high-temperature steam generated in the washing chamber is discharged through the breather 100, so that the air pressure in the washing chamber and the air pressure outside the washing chamber are balanced, and the normal circulation operation of the dish washer 1000 is realized.

Further, referring to fig. 1-3, fig. 2 is a schematic view of the interior of the respirator 100 shown in fig. 1, and fig. 3 is a schematic view of the interior of the respirator 100 shown in fig. 2 at another angle. Respirator 100 may include: a housing 110, a drain passage 120, and an anti-siphon passage 130.

The housing 110 is used to protect the components inside the respirator 100; the drain channel 120 is formed inside the housing 110, the drain channel 120 includes a water inlet 121 and a water outlet 122, the water inlet 121 is communicated with the water tank 300, and the water outlet 122 is used for discharging the wastewater in the water tank 300; the anti-siphon channel 130 is located inside the respirator 100, and the anti-siphon channel 130 includes a first communication port 131 and a second communication port, the first communication port 131 being in communication with the drain channel 120, and the second communication port being in communication with the outside atmosphere.

Wherein, a first water pump 400 is further arranged between the water tank 300 and the water inlet 121, the sewage in the water tank 300 is pumped into the water drain channel 120 by the first water pump 400, and further, the start and the end of the sewage discharge of the dish washer 1000 are controlled by controlling the opening and the closing of the first water pump 400.

In the prior art, sewage in a water tank of a dish washer enters a drainage channel from a water inlet and is discharged from a water outlet, in the process, the sewage enters the anti-siphon channel through a first communication port of the anti-siphon channel, and in order to prevent the sewage from being discharged to the outside atmosphere from a second communication port of the anti-siphon channel, a non-return structure is arranged in the anti-siphon channel and used for opening or blocking the anti-siphon channel, so that the purpose of anti-siphon is achieved, and meanwhile, the second communication port of the anti-siphon channel is prevented from leaking; after the water is drained, the anti-siphon channel still has a slight water leakage phenomenon due to the insufficient tightness of the non-return structure.

In order to solve the above problems, referring to fig. 3 and 4, fig. 4 is a schematic view of another angle of the inside of the respirator shown in fig. 3, wherein the first and second check sheets are not included. The present utility model provides a respirator 100 that may further comprise: a first check sheet 140 and a second check sheet 150, the first check sheet 140 being disposed in the anti-siphon channel 130 and being used to block or conduct the anti-siphon channel 130; the second check sheet 150 is disposed in the anti-siphon channel 130 and is used for blocking or conducting the anti-siphon channel 130, and the second check sheet 150 is located downstream of the first check sheet 140 on the path from the second communication port to the first communication port 131, that is, when the gas flows from the second communication port to the first communication port 131, the gas passes through the first check sheet 140 and then passes through the second check sheet 150.

In the process of discharging sewage from the dish washer 1000, the sewage in the water tank 300 enters the drainage channel 120 through the water inlet 121, and the air pressure in the drainage channel 120 is greater than the air pressure in the anti-siphon channel 130 due to the action of the water discharge pressure, so that the sewage in the drainage channel 120 enters the anti-siphon channel 130 through the first communication port 131, at this time, the second check sheet 150 and the first check sheet 140 are both in a state of blocking the anti-siphon channel 130, and the sewage passes through the second check sheet 150 first, and the second check sheet 150 seals the sewage; when part of the sewage flows to the first check sheet 140 through the second check sheet 150, the first check sheet 140 seals the sewage again; therefore, by arranging the first check sheet 140 and the second check sheet 150 in the anti-siphon channel 130, the sewage entering the anti-siphon channel 130 is doubly blocked, so that the possibility of water leakage of the anti-siphon channel 130 is reduced, and the product quality and the user experience are improved.

In the process of draining sewage by the dishwasher 1000, the drain channel 120 may have a siphon phenomenon, and when the drain channel 120 has a siphon phenomenon, the first check sheet 140 and the second check sheet 150 are both in a state of conducting the anti-siphon channel 130, so that the drain channel 120 is communicated with the outside atmosphere, the air pressure inside the drain channel 120 is balanced, the occurrence of the siphon phenomenon is avoided, and further dry burning in the cleaning cavity caused by pumping water in the water tank 300 is avoided.

In some embodiments, referring to fig. 3 and 4, the respirator 100 may further include a first air pressure channel 160, the first air pressure channel 160 including a third communication port 161 and a fourth communication port 162, the third communication port 161 being in communication with the anti-siphon channel 130, the fourth communication port 162 being in communication with the outside atmosphere; thereby, communication of the anti-siphon channel 130 with the outside atmosphere is achieved through the first air pressure channel 160.

Wherein, the first check sheet 140 is used for blocking or conducting the third communication port 161. When the dishwasher 1000 has a siphon phenomenon during the draining process, the first check sheet 140 is conducted to the third communication port 161; when the dishwasher 1000 does not have a siphon phenomenon during the draining process, the first check sheet 140 blocks the third communication port 161, preventing sewage from entering the outside atmosphere through the air pressure channel.

In some embodiments, referring to fig. 5 and 6, fig. 5 is a cross-sectional view of the first check sheet 140 shown in fig. 3, wherein the first check sheet 140 is in a first position; fig. 6 is a cross-sectional view of the first check sheet 140 shown in fig. 3, wherein the first check sheet 140 is in the second position. The anti-siphon channel 130 is also provided with a first connecting column 133, and the first connecting column 133 is positioned at the third communication port 161 of the first air pressure channel 160; the first non-return tab 140 is provided with a first connecting hole 141 matched with the first connecting post 133, and the first non-return tab 140 is sleeved on the first connecting post 133 through the first connecting hole 141, so that the first non-return tab 140 can translate in a first direction (for example, the left-right direction shown in fig. 5), wherein the first direction is parallel to the axial direction of the first connecting post 133; so that the first check sheet 140 can move between a first position to close the third communication port 161 and a second position to open the third communication port 161.

When the air pressure of the external atmosphere is greater than the air pressure in the anti-siphon channel 130, the first check sheet 140 is pushed to translate in the direction of low air pressure (for example, the direction from right to left as shown in fig. 5) due to the air pressure difference between two sides of the first check sheet 140, and the first check sheet 140 moves towards the second position to open the third communication port 161; when the air pressure of the external atmosphere is smaller than the air pressure in the anti-siphon channel 130, the first check sheet 140 is pushed to translate in the direction of low air pressure (for example, the direction from left to right in fig. 5) due to the air pressure difference between two sides of the first check sheet 140, and the first check sheet 140 moves towards the first position to block the third communication port 161.

In other embodiments, the first non-return tab 140 is a flexible member (e.g., a rubber tab, etc.) having some elastic deformation capability. When the air pressure of the external atmosphere is greater than the air pressure in the anti-siphon channel 130, the end of the first check sheet 140, which is far away from the first connecting column 133, is elastically deformed, and deforms towards the direction far away from the third communication port 161, so as to open the third communication port 161; when the air pressure of the external atmosphere is less than the air pressure in the anti-siphon channel 130, the first check sheet 140 closes the third communication port 161. The anti-siphon channel 130 is further provided with a first limiting portion, and the first limiting portion is disposed opposite to the first connecting column 133, so that the first check sheet 140 is prevented from being separated from the first connecting column 133 by the first limiting portion.

In some embodiments, referring to fig. 5 and 6, a first abutment 1611 protruding toward the first check sheet 140 is disposed on the peripheral edge of the third communication port 161 of the first air pressure channel 160; when the first check piece 140 is in the first position, the first check piece 140 abuts against the first abutment portion 1611, and closes the third communication port 161; when the first check piece 140 is in the second position, the first check piece 140 is spaced apart from the first abutment portion 1611, and the third communication port 161 is opened.

In some embodiments, referring to fig. 7, fig. 7 is an enlarged view at a shown in fig. 3. The drainage channel 120 comprises a first drainage branch 123, a second drainage branch 124 and a third drainage branch 125, wherein one end of the first drainage branch 123 is communicated with one end of the third drainage branch 125, the other end of the first drainage branch is formed into a water inlet 121, one end of the second drainage branch 124 is communicated with the other end of the third drainage branch 125, and the other end of the second drainage branch is formed into a water outlet 122; the first drainage branch 123 is located on the same side of the third drainage branch 125 as the second drainage branch 124 (e.g., the underside of the third drainage branch 125 shown in fig. 7), and the third drainage branch 125 arches in a direction away from the first and second drainage branches 123, 124 (e.g., the bottom-up direction shown in fig. 7); the first communication port 131 of the anti-siphon channel 130 communicates with the third drain branch 125, and is disposed near the other end of the third drain branch 125. Thus, the sewage flowing back from the anti-siphon channel 130 to the drain channel 120 is directly discharged to the water outlet 122, so that the sewage flowing back from the anti-siphon channel 130 to the water tank 300 is prevented from flowing to the water inlet 121.

The first communication port 131 is disposed near the other end of the third drainage branch 125, that is, a distance between the first communication port 131 and one end of the third drainage branch 125 is greater than a distance between the first communication port 131 and the other end of the third drainage branch 125.

In some embodiments, referring to fig. 8-10, fig. 8 is a schematic view of the interior of a respirator 100 provided in other embodiments of the present utility model, fig. 9 is a schematic view of the interior of the respirator 100 shown in fig. 8 at another angle, and fig. 10 is an enlarged view at B shown in fig. 9. The anti-siphon channel 130 may include a first anti-siphon segment 134 and a second anti-siphon segment 135, the first anti-siphon segment 134 being located between the first check sheet 140 and the second check sheet 150; the second anti-siphon segment 135 is located between the second check sheet 150 and the first communication port 131.

The respirator 100 may also include a second air pressure channel 170, and the second air pressure channel 170 may include a fifth communication port and a sixth communication port 171, the fifth communication port being in communication with the second anti-siphon segment 135 and the sixth communication port 171 being in communication with the first anti-siphon segment 134. In this way, communication between the first anti-siphon section 134 and the second anti-siphon section 135 is achieved by providing a second air pressure passage 170 between the first anti-siphon section 134 and the second anti-siphon section 135.

In some embodiments, the second check sheet 150 is used to block or communicate with the fifth communication port; a second connecting column is further arranged in the anti-siphon channel 130, and the second connecting column is positioned at the fifth communication port; the second non-return piece 150 is provided with a second connecting hole matched with the second connecting column, and the second non-return piece 150 is sleeved on the second connecting column through the second connecting hole, so that the second non-return piece 150 can translate in a second direction, wherein the second direction is parallel to the axis direction of the second connecting column.

Respirator 100 may also include an auxiliary drain fitting 180, with one end of auxiliary drain fitting 180 in communication with first anti-siphon segment 134 and the other end in communication with sink 300. It should be noted that, a second water pump is connected in series between the other end of the auxiliary water drain connector 180 and the water tank 300, the sewage in the water tank 300 is pumped into the auxiliary water drain connector 180 by the second water pump, the sewage enters the first anti-siphon section 134 through the auxiliary water drain connector 180, and the pressure of the first anti-siphon section 134 is greater than the pressure of the external atmosphere due to the existence of the drain pressure, and the first check sheet 140 seals the third communication port 161; the pressure of the first anti-siphon segment 134 is greater than the pressure of the second anti-siphon segment 135, and the second check sheet 150 opens the fifth communication port.

Therefore, the sewage entering the first anti-siphon section 134 enters the second anti-siphon section 135 through the second air pressure passage 170, the sewage entering the second anti-siphon section 135 enters the drain passage 120 through the first communication port 131 of the anti-siphon passage 130, and the sewage entering the drain passage 120 is discharged through the water outlet 122.

Thus, the contaminated water in the dishwasher 1000 may enter the drain passage 120 through the water inlet 121 and be discharged from the water outlet 122; it is also possible to enter the drain channel 120 via the auxiliary drain fitting 180, the anti-siphon channel 130 and drain from the water outlet 122. Thus, a way of draining the dishwasher 1000 is increased, and a drainage effect of the dishwasher 1000 is improved.

In some embodiments, referring to fig. 8 and 9, the respirator 100 may further include an air pressure balancing passage 190, the air pressure balancing passage 190 being formed inside the housing 110, the air pressure balancing passage 190 including a seventh communication port 192 and an eighth communication port 193, the seventh communication port 192 being in communication with the inner bladder 200, the eighth communication port 193 being in communication with the outside atmosphere; the second communication port of the anti-siphon channel 130 communicates with the air pressure balance channel 190. The respirator 100 communicates the inside and the outside of the washing chamber through the air pressure balancing passage 190, and discharges high-temperature steam generated by washing in the washing chamber through the air pressure balancing passage 190, so that the air pressure in the washing chamber and the air pressure outside are kept balanced, and normal circulation operation of the dishwasher 1000 is realized.

In order to reduce the discharge of the vapor with higher temperature from the eighth communication port 193 of the air pressure balancing channel 190, referring to fig. 8 and 9, the respirator 100 provided by the present utility model further includes ribs 191, where the ribs 191 are disposed on the inner wall of the air pressure balancing channel 190, so as to increase the condensation area of the vapor. Because the temperature in the ventilator is lower than the temperature in the cleaning chamber, after the water vapor enters the ventilator 100, the water vapor is condensed into water drops due to the temperature decrease, and the ribs 191 increase the condensation area of the water vapor, so that more water vapor can be condensed into water drops and flow back into the cleaning chamber along the air pressure balancing channel 190, thereby reducing the discharged water vapor to prevent the user from being scalded.

In some embodiments, the number of ribs 191 may be one or more. Compared with the rib 191, when a plurality of ribs 191 are arranged, the condensation area of the water vapor can be further increased, so that the exhausted water vapor is further reduced, and the risk of scalding the user is further reduced.

In some embodiments, the ribs 191 may be distributed in a regular structure, for example, a plurality of arc structures with the same arc shape, or may be distributed in a different regular structure, for example, a plurality of arc structures with different arc shapes. Compared with the ribs 191 which are regularly distributed, when the ribs 191 which are irregularly distributed are arranged, the ribs 191 can be arranged on the air pressure balance channel 190 in multiple directions, so that the ribs 191 can be contacted with the water vapor from multiple different directions, and the condensation area of the water vapor is further increased.

The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any changes or substitutions within the technical scope of the present utility model should be covered by the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims (10)

1. A respirator, wherein the respirator is applied to a dishwasher; the dish washer comprises an inner container and a water tank communicated with the inner container; the respirator is arranged on the liner of the dish-washing machine; the respirator comprises:

a housing;

the drainage channel is formed in the shell and comprises a water inlet and a water outlet, the water inlet is communicated with the water tank, and the water outlet is used for discharging wastewater in the water tank;

an anti-siphon channel located inside the respirator, the anti-siphon channel comprising a first communication port and a second communication port, the first communication port being in communication with the drain channel and the second communication port being in communication with the outside atmosphere;

the first check sheet is arranged in the anti-siphon channel and is used for blocking or conducting the anti-siphon channel;

the second check piece is arranged in the anti-siphon channel and used for blocking or conducting the anti-siphon channel, and is positioned at the downstream of the first check piece on a path from the second communication port to the first communication port.

2. The respirator of claim 1, further comprising: the first air pressure channel comprises a third communication port and a fourth communication port, the third communication port is communicated with the anti-siphon channel, and the fourth communication port is communicated with the external atmosphere;

the first non-return piece is used for blocking or conducting the third communication port.

3. The respirator of claim 2, wherein a first connecting post is further disposed within the anti-siphon channel, the first connecting post being located at the third communication port;

the first non-return piece is provided with a first connecting hole matched with the first connecting column, and is sleeved on the first connecting column through the first connecting hole, so that the first non-return piece can translate in a first direction, and can move between a first position for blocking the third communication port and a second position for opening the third communication port;

wherein, the first direction is parallel with the axis direction of first spliced pole.

4. The respirator of claim 2, wherein a first abutment portion protruding toward the first backstop is provided on the peripheral edge of the third communication port;

when the first check sheet is at the first position, the first check sheet is in contact with the first contact portion; the first backstop is spaced apart from the first abutment when the first backstop is in the second position.

5. The respirator of claim 1, wherein the drainage channel comprises a first drainage branch, a second drainage branch, and a third drainage branch, one end of the first drainage branch being in communication with one end of the third drainage branch and the other end being the water inlet, one end of the second drainage branch being in communication with the other end of the third drainage branch and the other end being the water outlet;

the first drainage branch and the second drainage branch are positioned on the same side of the third drainage branch, and the third drainage branch arches towards the direction away from the first drainage branch and the second drainage branch;

the first communication port is communicated with the third drainage branch and is arranged close to the other end of the third drainage branch.

6. The respirator of claim 1, wherein the anti-siphon channel comprises a first anti-siphon segment that is located between the first and second non-return tabs;

the respirator also comprises an auxiliary drainage connector, wherein one end of the auxiliary drainage connector is communicated with the first anti-siphon section, and the other end of the auxiliary drainage connector is communicated with the water tank.

7. The respirator of claim 6, wherein the anti-siphon channel further comprises a second anti-siphon segment that is located between the second check tab and the first communication port;

the respirator also includes: the second air pressure channel comprises a fifth communication port and a sixth communication port, wherein the fifth communication port is communicated with the second anti-siphon section, and the sixth communication port is communicated with the first anti-siphon section.

8. The respirator of claim 1, further comprising:

the air pressure balancing channel is formed in the shell and comprises a seventh communication port and an eighth communication port, wherein the seventh communication port is communicated with the inner container, and the eighth communication port is communicated with the external atmosphere;

the second communication port of the anti-siphon channel is communicated with the air pressure balance channel.

9. The respirator of claim 8, further comprising a rib located on an inner wall of the air pressure equalization channel.

10. A dishwasher comprising a respirator as claimed in any one of claims 1 to 9.