CN115486779A - Respirator for dish washing machine and dish washing machine - Google Patents

Abstract

The invention discloses a respirator for a dish-washing machine, which is provided with a first flow passage and a second flow passage, wherein the water outlet of the first flow passage is communicated with a resin cavity of a softener of the dish-washing machine, the water outlet of the second flow passage is communicated with a salt cavity of the softener of the dish-washing machine, an anti-siphon structure is arranged between the first flow passage and the second flow passage, and water is fed into the second flow passage from the first flow passage through the anti-siphon structure. According to the invention, the anti-siphon structure is arranged between the first flow passage and the second flow passage, and the first flow passage feeds water into the second flow passage through the anti-siphon structure, so that the water overflowing from the anti-siphon structure is used for feeding water into the salt cavity, resource waste is avoided, and simultaneously, the water which is not softened is prevented from entering the washing cavity, scaling in the washing cavity is prevented, and the service life of the dish washing machine is influenced. The invention also discloses a dishwasher, which comprises the respirator for the dishwasher.

Description

Respirator for dish washing machine and dish washing machine

Technical Field

The invention belongs to the field of kitchen household appliances, and particularly relates to a respirator for a dish washing machine and the dish washing machine.

Background

The dish washer is a kitchen household appliance used for automatically cleaning tableware such as dishes, chopsticks, dishes, knives, forks and the like, along with the continuous improvement of living standard of people, the requirements of people on the living quality are higher and higher, and the dish washer is gradually accepted and recognized by the public and enters the kitchen of thousands of households.

The dish washer is including washing chamber and the water softener that is linked together, it is used for cleaning placing the tableware in the washing chamber to advance water to the washing chamber through the water softener, wherein, the water softener includes resin chamber and salt chamber, utilize cation exchange resin to get rid of aquatic calcium magnesium ion, reduce the washing water hardness, in order to reach the purpose of softening the washing water, thereby avoid carbonate at the interior scale deposit of washing chamber, and cation exchange resin regeneration process is many after the washing procedure, to intaking in order to form the strong brine to the salt chamber, the leading-in resin chamber of strong brine is with exchanging the calcium magnesium ion in the cation exchange resin again, the softening washing water capacity of recovery cation exchange resin, but the water supply mode in this kind of salt chamber, the inflow is big, salt and the water that consumes are many, cause the water resource waste.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a respirator for a dish washing machine, so as to achieve the purpose of supplying water to a salt cavity more effectively and saving water sources.

In order to solve the technical problems, the invention adopts the technical scheme that:

the utility model provides a respirator for dish washer, the respirator has first runner and second runner, and the delivery port of first runner communicates with the resin chamber of the demineralizer of dish washer, and the delivery port of second runner communicates with the salt chamber of the demineralizer of dish washer, is equipped with anti-siphon structure between first runner and the second runner, and first runner is intake to the second runner through anti-siphon structure.

The dishwasher further comprises a washing cavity, the respirator is provided with a communication port communicated with the washing cavity, the second flow channel comprises a first branch and a second branch, the first branch is arranged above the communication port and communicated with the washing cavity, the second branch is arranged on one side of the communication port, and a water inlet of the second branch is communicated with a water outlet of the first branch;

the first flow channel is communicated with the first branch through the anti-siphon structure, and the water outlet of the second branch is communicated with the salt cavity.

Furthermore, a diversion guide rib extending from one side wall of the water channel to the opposite side is arranged in the second branch, and a gap for water flow to pass through is formed between the extending end of the diversion guide rib and the side wall of the water channel;

preferably, one end of the shunting guide rib is connected with the side wall of the second branch circuit close to one side of the communication port.

Furthermore, a water outlet is formed in the side wall, close to the outer peripheral side of the communication opening, of the second branch, the water outlet is formed below the diversion guide rib, and the salt cavity is communicated with the washing cavity through the water outlet.

Further, the second branch comprises a bent flow channel section, a convex flow channel section and a rotary flow channel section, the upper end of the bent flow channel section is communicated with the water outlet of the first branch, and the lower end of the bent flow channel section is communicated with the upper end of the convex flow channel section; the convex runner section protrudes out of the first runner along the axial direction, and an overflow opening communicated with the upper end of the rotary runner section is formed in the side wall of the convex runner section, which is far away from the outer peripheral side of the communication opening; the lower end of the rotary flow passage section is provided with a water outlet communicated with the salt cavity.

Further, an inner wall is arranged between the first branch and the first flow channel, an anti-siphon structure is arranged on the inner wall, and the lower end of the inner wall is connected with the upper end of the side wall of the bent flow channel section, which deviates from the periphery side of the communication port.

Further, the protruded flow channel section comprises a first side wall close to the outer periphery side of the communication opening and a second side wall far away from the outer periphery side of the communication opening, a flow distribution guide rib extending towards the second side wall is arranged on the first side wall, and a gap for water flow to pass through is formed between the extending end of the flow distribution guide rib and the second side wall;

the second side wall is provided with an overflow opening communicated with the rotary flow channel section, the first side wall is provided with a water discharge opening communicated with the washing cavity, and the overflow opening and the water discharge opening are respectively arranged below the diversion guide ribs.

Further comprises an air flow channel communicated with the salt cavity, the rotary flow channel section and the air flow channel are arranged side by side, and a separation rib is arranged between the rotary flow channel section and the air flow channel, and the air outlet of the air flow channel is higher than the water discharge opening.

Further, a gap for water flow of the first flow channel to pass through is formed between the bottom wall of the convex flow channel section and the bottom wall of the first flow channel.

Still another object of the present invention is to provide a dishwasher to achieve the purpose of preventing water resource waste and improving the working capacity of the dishwasher.

The invention also provides a dishwasher, comprising any one of the respirator for the dishwasher.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

1. According to the invention, the anti-siphon structure is arranged between the first flow passage and the second flow passage, and the first flow passage feeds water into the second flow passage through the anti-siphon structure, so that the water overflowing through the anti-siphon structure is used for feeding water into the salt cavity, the waste of water resources is avoided, and the phenomenon that the softened water enters the washing cavity to cause scaling in the washing cavity and influence the service life of the dish washing machine is avoided.

2. According to the invention, water is fed into the salt cavity through the second flow channel, and after the salt cavity is full of water, redundant water overflows from the overflow port, enters the protruding flow channel section and flows into the washing cavity through the water discharge port, so that the water overflowing from the salt cavity is prevented from leaking from the air flow channel, the water resource waste is avoided, and the use experience of a user is influenced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention to the proper form disclosed herein. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived on the basis of these drawings without inventive effort. In the drawings:

FIG. 1 is a schematic structural view of a shell of a respirator in an embodiment of the invention;

FIG. 2 is a schematic view of a portion of the housing shown in FIG. 1;

FIG. 3 is a front view of a shell of a respirator in an embodiment of the present invention;

fig. 4 is a partial structural schematic view of the housing shown in fig. 3.

In the figure:

100. a respirator; 101. a housing;

1. a first flow passage; 11. a water inlet; 12. a first water outlet; 2. a second flow passage; 21. a second water outlet; 22. a first branch; 221. an inner wall; 2211. a first convex section; 2212. an inward concave section; 222. an outer wall; 2221. a second convex section; 23. a second branch circuit; 231. bending the runner section; 2311. a first arcuate wall; 2312. a second arcuate wall; 232. a protruding flow passage section; 2321. a first side wall; 2322. a second side wall; 233. a rotary flow channel section; 24. a water discharge opening; 25. an overflow port; 26. shunting guide ribs; 27. separating ribs; 3. an anti-siphon structure; 4. an air flow passage; 41. an air outlet; 5. a drainage channel; 51. a sewage inlet; 52. a sewage outlet; 53. a drainage vent; 6. a communication port.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "longitudinal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1 to 4, in an embodiment of the present invention, a respirator 100 for a dishwasher is provided, the respirator 100 has a first flow passage 1 and a second flow passage 2, a water outlet of the first flow passage 1 is communicated with a resin chamber of a softener of the dishwasher, a water outlet of the second flow passage 2 is communicated with a salt chamber of the softener of the dishwasher, an anti-siphon structure 3 is disposed between the first flow passage 1 and the second flow passage 2, and water is introduced into the second flow passage 2 from the first flow passage 1 through the anti-siphon structure 3.

In the above scheme, be equipped with between first runner 1 and the second runner 2 and prevent siphon structure 3, first runner 1 is through preventing that siphon structure 3 is to the 2 intakes of second runner to the water that the messenger spills over through preventing siphon structure 3 is used for the salt chamber to intake, avoids the water waste, prevents that the water that does not soften from getting into the washing chamber, leads to the interior scale deposit of washing chamber, influences dish washer's life.

As shown in fig. 1 and 2, in the present example, the respirator 100 includes a housing 101, and the housing 101 has a first flow passage 1 and a second flow passage 2, wherein the first flow passage 1 is provided with an inlet 11, an outlet of the first flow passage 1 is a first outlet 12, and an outlet of the second flow passage 2 is a second outlet 21.

As shown in fig. 1 and 2, the dishwasher further includes a washing chamber, the respirator 100 has a communication port 6 communicating with the washing chamber, the second flow passage 2 includes a first branch 22 and a second branch 23, the first branch 22 is disposed above the communication port 6 and communicates with the washing chamber, the second branch 23 is disposed at one side of the communication port 6, and a water inlet 11 of the second branch 23 communicates with a water outlet of the first branch 22; the first flow channel 1 is communicated with a first branch 22 through an anti-siphon structure 3, and a water outlet of a second branch 23 is communicated with the salt cavity.

In the above scheme, the second branch 23 is arranged at a position slightly lower than the lower side of the anti-siphon structure 3, the water inlet 11 of the second branch 23 is located at the periphery side of the communicating port 6, when the first flow channel 1 feeds water into the resin cavity, part of water in the first flow channel 1 flows into the first branch 22 through the anti-siphon structure 3, then flows into the second branch 23 through the water outlet of the first branch 22, and finally flows into the salt cavity on the lower side of the respirator 100, so that the water feeding of the second flow channel 2 into the salt cavity is realized, the water inlet amount of the salt cavity is controlled, and meanwhile, the phenomenon that water which is not softened leaks into the washing cavity through the anti-siphon structure 3 to cause scaling in the washing cavity is avoided.

As shown in fig. 3 and 4, in this embodiment, an inner wall 221 is disposed between the first branch 22 and the first flow channel 1, an anti-siphon structure 3 for the first flow channel 1 to feed water into the first branch 22 is disposed on the inner wall 221, and the inner wall 221 is bent downward to connect with a side wall of the second branch 23 on a side away from the communication port 6.

In the above scheme, anti-siphon structure 3 is established on the inner wall 221 between first branch road 22 and first flow channel 1, makes the water that flows into first branch road 22 flow into the salt chamber through second branch road 23, avoids in not softened water inflow and the washing chamber of first branch road 22 intercommunication, leads to the washing water hardness in the washing chamber to increase, and then the problem of the interior scale deposit of washing chamber appears, influences the life of dish washer.

As shown in fig. 3 and 4, in this embodiment, a diversion guide rib 26 is disposed inside the second branch 23 and extends from one side wall of the waterway to the opposite side wall, a gap is formed between the extending end of the diversion guide rib 26 and the side wall of the waterway, and the flow rate and the flow direction of the water flow are adjusted by the diversion guide rib 26, so that the water in the second branch 23 smoothly flows into the salt cavity and is fully mixed with the sodium chloride in the salt cavity, thereby forming a uniform sodium chloride solution.

Preferably, one end of the diversion guide rib 26 is connected to the side wall of the inside of the second branch 23 close to the communication port 6 to guide the water flow to flow out from the gap between the extending end of the diversion guide rib 26 and the side wall of the inside of the second branch 23 away from the communication port 6.

More preferably, the extension end of the diversion guiding rib 26 is inclined or bent towards the downstream direction of the second branch 23 to further slow down the flow velocity of the water at the upstream of the second branch 23 and guide the water to flow downwards, so as to ensure that the water flowing into the salt cavity is fully mixed with the sodium chloride in the salt cavity, and simultaneously, the water is prevented from flowing too fast to cause water leakage in the salt cavity.

More preferably, the second branch 23 located below the diversion guide rib 26 protrudes towards the extension direction of the diversion guide rib 26 and bends and extends downwards, so as to ensure that the water flows downwards more smoothly.

As shown in fig. 3 and 4, in this example, a drain opening 24 is formed in a side wall of the second branch 23 on the outer peripheral side of the communication opening 6, the drain opening 24 is provided below the diversion guide rib 26, and the salt chamber communicates with the washing chamber through the drain opening 24.

In the above scheme, intaking to the salt chamber through second runner 2, after the water in salt chamber is full, unnecessary water can flow into the washing intracavity from outlet 24 to avoid the salt chamber to leak, cause the water waste, reduce the working ability of dish washer, influence the user and use experience.

Through the above-mentioned respirator 100 for dish washer, first runner 1 is intake to second runner 2 through anti-siphon structure 3 to the water that the messenger spills over through anti-siphon structure 3 is used for the salt chamber to intake, avoids the water waste, prevents that water that does not soften from getting into the washing chamber, leads to the interior scale deposit of washing chamber, and after the water in salt chamber is full, unnecessary water can follow outlet 24 and flow into the washing intracavity, has improved dish washer's operational capability.

Example two

As shown in fig. 1 to 4, the present embodiment is further limited to the first embodiment, the second branch 23 includes a bent flow passage section 231, a protruding flow passage section 232, and a rotating flow passage section 233, an upper end of the bent flow passage section 231 is communicated with the water outlet of the first branch 22, and a lower end of the bent flow passage section 231 is communicated with an upper end of the protruding flow passage section 232; the protruding runner section 232 protrudes out of the first runner 1 along the axial direction, and an overflow opening 25 communicated with the upper end of the rotary runner section 233 is formed in the side wall of the protruding runner section 232 away from the outer peripheral side of the communication opening 6; the lower end of the rotary flow passage section 233 is provided with a water outlet communicated with the salt cavity.

In the above scheme, water flows into the bent flow channel section 231 through the water outlet of the first branch 22, then flows into the protruding flow channel section 232 through the bent flow channel section 231, and finally flows into the rotary flow channel section 233 through the protruding flow channel section 232 to enter the salt cavity, so that water overflowing from the anti-siphon structure 3 is used for salt cavity water inlet, the waste of water resources is reduced, and the working capacity of the dishwasher is improved.

As shown in fig. 3 and 4, in this example, an inner wall 221 is provided between the first branch passage 22 and the first flow passage 1, the inner wall 221 is provided with the anti-siphon structure 3 for allowing the first flow passage 1 to feed water into the first branch passage 22, and a lower end of the inner wall 221 is connected to an upper end of a side wall of the bent flow passage section 231 facing away from the outer peripheral side of the communication port 6.

As shown in fig. 3 and 4, in the present example, the bent flow passage section 231 includes a first arc-shaped wall 2311 close to the outer peripheral side of the communication port 6 and a second arc-shaped wall 2312 away from the outer peripheral side of the communication port 6, the first arc-shaped wall 2311 and the second arc-shaped wall 2312 are adapted to the outer peripheral profile of the communication port 6, the upper end of the second arc-shaped wall 2312 is connected to the lower end of the inner wall 221, and the lower end of the first arc-shaped wall 2311 and the lower end of the second arc-shaped wall 2312 are connected to the protruding flow passage section 232.

In the above scheme, the first arc-shaped wall 2311 and the second arc-shaped wall 2312 are matched with the outer peripheral profile of the communication port 6, so that not only can the water in the first branch 22 smoothly flow into the second branch 23 on the outer peripheral side of the communication port 6 be ensured, but also the water flow speed and the water flow direction of the second branch 23 can be adjusted, and the water flow is prevented from flowing at an excessive speed in the process of flowing downwards.

As shown in fig. 3 and 4, in this example, the first branch passage 22 includes an inner wall 221 and an outer wall 222 on the opposite side, a lower end of the outer wall 222 is connected to the outer circumferential wall of the communication port 6, an upper end of the first arc-shaped wall 2311 extends toward the outer wall 222 along the outer circumferential side of the communication port 6, and a gap is provided between the extended end of the first arc-shaped wall 2311 and the outer wall 222 to define a vent communicating with the washing chamber.

In the above-mentioned scheme, a vent for communicating the washing chamber is defined between the extended end of the first arc-shaped wall 2311 and the outer wall 222, so as to relieve the safety accident caused by the excessive pressure in the washing chamber.

As shown in fig. 3 and 4, in this example, the extending end of the first arc-shaped wall 2311 protrudes out of the upper end of the second arc-shaped wall 2312, the inner wall 221 at least comprises a first convex section 2211 and a concave section 2212 which are sequentially connected from top to bottom, the anti-siphon structure 3 is arranged on the first convex section 2211, wherein the curvature radius of the first convex section 2211 is gradually increased from top to bottom, the curvature radius of the concave section 2212 is gradually decreased from bottom to top, the maximum curvature radius of the concave section 2212 is smaller than the minimum curvature radius of the first convex section 2211, and the lower end of the concave section 2212 is connected with the upper end of the second arc-shaped wall 2312; the outer wall 222 at least includes a second convex section 2221 whose curvature radius gradually decreases from top to bottom, the minimum curvature radius of the second convex section 2221 is larger than the maximum curvature radius of the concave section 2212, and the lower end of the second convex section 2221 is connected to the outer circumferential wall of the communication port 6.

In the above solution, the maximum radius of curvature of the inner concave section 2212 is smaller than the minimum radius of curvature of the first outer convex section 2211, and the minimum radius of curvature of the second outer convex section 2221 is larger than the maximum radius of curvature of the inner concave section 2212, so as to ensure that the water in the first branch 22 flows into the second branch 23, and the water flows into the washing chamber through the air vent of the washing chamber, so that the water which is not softened causes scaling in the washing chamber.

As shown in fig. 3 and 4, in this example, the protruding flow path segment 232 includes a first side wall 2321 close to the outer periphery of the communication port 6 and a second side wall 2322 away from the outer periphery of the communication port 6, the first side wall 2321 is provided with a flow dividing guide rib 26 extending toward the second side wall 2322, and a gap through which water flows is provided between an extending end of the flow dividing guide rib 26 and the second side wall 2322; the second side wall 2322 is provided with an overflow opening 25 communicated with the turning flow channel section 233, the first side wall 2321 is provided with a drainage opening 24 communicated with the washing chamber, and the overflow opening 25 and the drainage opening 24 are respectively arranged below the split flow guide rib 26.

In the above scheme, intaking to the salt chamber through second runner 2, after the water in salt chamber is full, unnecessary water spills over from gap 25 and gets into protrusion runner section 232 to flow into the washing intracavity through outlet 24, thereby avoid the water that the salt chamber spills over to spill from air runner 4, cause the water waste, influence the user and use experience.

As shown in fig. 1 and 2, in this example, the respirator 100 further includes an air flow passage 4 communicating with the salt cavity, the rotary flow passage section 233 and the air flow passage 4 are arranged side by side, a partition rib 27 is arranged between the rotary flow passage section 233 and the air flow passage 4, and the air outlet 41 of the air flow passage 4 is higher than the drain opening 24.

In the above scheme, in order to reduce the interface structure between the respirator 100 and the softener, the water flow channel and the air flow channel 4 form a cylindrical structure at the connecting part, and the air flow channel 4 and the water flow channel are distributed on two sides of the cylindrical structure through the separation ribs 27, so that the installation difficulty of the respirator 100 and the softener can be reduced, and the water leakage problem can be prevented, especially, the air outlet 41 of the air flow channel 4 is higher than the water discharge opening 24, when the saline water cavity is full of water, the excess water can flow into the protruding flow channel section 232 from the water discharge opening 25, and then enters the washing cavity through the water discharge opening 24, and cannot leak out of the air flow channel 4, so that resource waste is caused.

As shown in fig. 3 and 4, in this example, a gap is formed between the bottom wall of the protruding flow path section 232 and the bottom wall of the first flow path 1 for the water flow of the first flow path 1.

In the above scheme, the protruding flow channel section 232 and the first flow channel 1 are arranged in front and at the back, so that the first flow channel 1 and the second flow channel 2 are simpler, water in the first flow channel 1 and the second flow channel 2 can smoothly flow downwards, the inner space of the shell 101 is saved, and the inner structure of the respirator 100 is more compact.

Specifically, water is supplied to the first flow channel 1 through the water inlet 11 of the first flow channel 1, part of the water in the first flow channel 1 flows into the second flow channel 2 through the anti-siphon structure 3, and the rest of the water flows downwards and flows into the resin cavity through the first water outlet 12; and the water overflowing from the anti-siphon structure 3 flows into the first branch 22 and then flows downwards until flowing into the salt cavity through the second water outlet 21, and when the salt cavity is full of water, the excess water overflows from the overflow port 25 and flows into the protruding flow channel section 232 of the second branch 23, and then flows into the washing cavity from the drain port 24.

Through the respirator 100 for the dish washing machine, water flows into the bent flow channel section 231 through the water outlet of the first branch 22, then flows into the protruding flow channel section 232 through the bent flow channel section 231, and finally flows into the rotary flow channel section 233 through the protruding flow channel section 232 to enter the salt cavity, so that water overflowing from the anti-siphon structure 3 is used for water inflow of the salt cavity, the waste of water resources is reduced, and the working capacity of the dish washing machine is improved.

EXAMPLE III

As shown in fig. 1 and 3, this embodiment is further defined by the first embodiment, the housing 101 further has a drainage channel 5, the drainage channel 5 is provided with a sewage inlet 51, a sewage outlet 52 and a drainage vent 53, wherein the sewage inlet 51 is communicated with the washing chamber, the sewage outlet 52 is adapted to be communicated with a sewer, and the drainage vent 53 is communicated with the atmosphere.

Specifically, the washing sewage generated in the washing chamber enters the drainage channel 5 through the sewage inlet 51 and then is discharged into the sewer through the sewage outlet 52, thereby realizing the drainage process of the dishwasher. When the drainage process is stopped, negative pressure will be formed in the upstream section of the drainage channel 5, so that water staying in the downstream section of the drainage channel 5 communicated with the sewer has a tendency of flowing back due to siphon, and since the drainage vent 53 is communicated with the atmosphere, air in the atmosphere can enter the drainage channel 5 through the drainage vent 53 to balance the pressure difference in the drainage channel 5, prevent the siphon phenomenon of the drainage channel 5,

through the respirator 100 for the dish washing machine, water in the drainage channel 5 can be prevented from flowing back into the washing cavity of the dish washing machine after drainage, and the water retained in the drainage channel 5 is ensured to be smoothly drained.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.

Claims (10)

1. A respirator for a dishwasher, the respirator having a first flow passage and a second flow passage, the water outlet of the first flow passage communicating with a resin chamber of a softener of the dishwasher, the water outlet of the second flow passage communicating with a salt chamber of the softener of the dishwasher, characterized in that: an anti-siphon structure is arranged between the first flow passage and the second flow passage, and the first flow passage enters water into the second flow passage through the anti-siphon structure.

2. A respirator for a dishwasher according to claim 1, wherein: the dishwasher also comprises a washing cavity, the respirator is provided with a communication port communicated with the washing cavity, the second flow channel comprises a first branch and a second branch, the first branch is arranged above the communication port and communicated with the washing cavity, the second branch is arranged on one side of the communication port, and a water inlet of the second branch is communicated with a water outlet of the first branch;

the first flow channel is communicated with the first branch through the anti-siphon structure, and the water outlet of the second branch is communicated with the salt cavity.

3. A respirator for a dishwasher according to claim 2, wherein: a shunting guide rib extending from one side wall of the water path to the opposite side is arranged in the second branch, and a gap for water flow to pass through is formed between the extending end of the shunting guide rib and the side wall of the water path;

preferably, one end of the shunting guide rib is connected with the side wall, close to one side of the communication opening, in the second branch.

4. A respirator for a dishwasher according to claim 3, wherein: and a water outlet is formed in the side wall, close to the outer peripheral side of the communication port, of the second branch, the water outlet is arranged below the diversion guide rib, and the salt cavity is communicated with the washing cavity through the water outlet.

5. A respirator for a dishwasher according to claim 2, wherein: the second branch comprises a bent flow passage section, a convex flow passage section and a rotary flow passage section, the upper end of the bent flow passage section is communicated with the water outlet of the first branch, and the lower end of the bent flow passage section is communicated with the upper end of the convex flow passage section; the convex flow passage section protrudes out of the first flow passage along the axial direction, and an overflow opening communicated with the upper end of the rotary flow passage section is formed in the side wall of the convex flow passage section, which is far away from the outer peripheral side of the communication opening; the lower end of the rotary flow passage section is provided with a water outlet communicated with the salt cavity.

6. A respirator for a dishwasher according to claim 5, wherein: an inner wall is arranged between the first branch and the first flow channel, an anti-siphon structure is arranged on the inner wall, and the lower end of the inner wall is connected with the upper end of the side wall of the bent flow channel section, which deviates from the periphery side of the communication opening.

7. A respirator for a dishwasher according to claim 5 or 6, wherein: the convex flow channel section comprises a first side wall close to the periphery of the communication opening and a second side wall far away from the periphery of the communication opening, a flow distribution guide rib extending towards the second side wall is arranged on the first side wall, and a gap for water flow to pass through is formed between the extending end of the flow distribution guide rib and the second side wall;

the second side wall is provided with an overflow opening communicated with the rotary flow channel section, the first side wall is provided with a water discharge opening communicated with the washing cavity, and the overflow opening and the water discharge opening are respectively arranged below the diversion guide ribs.

8. A respirator for a dishwasher according to claim 7, wherein: the salt cavity air flow channel is characterized by further comprising an air flow channel communicated with the salt cavity, the rotary flow channel section and the air flow channel are arranged side by side, a separation rib is arranged between the rotary flow channel section and the air flow channel, and an air outlet of the air flow channel is higher than the water discharge opening.

9. A respirator for a dishwasher according to claim 7, wherein: a gap for water flow of the first flow channel to pass through is formed between the bottom wall of the convex flow channel section and the bottom wall of the first flow channel.

10. A dishwasher, characterized by: a respirator for a dishwasher comprising any one of the preceding claims 1 to 9.

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