Input system and dishwasher

Abstract

This disclosure discloses a dispensing system and a dishwasher, the dispensing system comprising a pump body, a communication structure and a liquid storage structure, the pump body having an input fitting and an output fitting, the communication structure including a first port, a second port and a third port communicating with each other, the first port being connected to the output fitting, the second port being configured to communicate with a water supply end and the third port being configured to communicate with the washing chamber of the dishwasher, the liquid storage structure being configured to contain detergent, the discharge fitting of the liquid storage structure being directly connected to the input fitting, the pump body being driven to inject the detergent in the liquid storage structure into the communication structure via the first port and into the communication structure via the second port by the water flow from the water supply end, thereby injecting the detergent in the communication structure into the washing chamber along the third port.

Description

Technical Field

[0001] This invention claims the priority of a Chinese patent application filed with the Chinese Patent Office on December 05, 2023, with an application number of 2023233119514 and an invention title of "Input System and Dishwasher", and all the contents of the Chinese patent application are incorporated into this disclosure by reference.

[0002] This invention relates to the technical field of kitchen appliances, and particularly to an input system and a dishwasher.

Background Art

[0003] A dishwasher is a device that automatically washes dishes such as bowls, chopsticks, plates, small dishes, knives, forks, etc. Conventional dishwashers usually have a dedicated detergent input system, which stores the detergent and transports the detergent into the washing chamber of the dishwasher body to wash the dishes with the detergent.

[0004] In the related art, since the input pipeline of the input system is long, the detergent solution is likely to remain in the input pipeline after being input, and when accumulated over a long period, there is an easy risk of clogging, the input amount of the detergent becomes inaccurate, and further affects the washing effect of the dishwasher.

Summary of the Invention

Problems to be Solved by the Invention

[0005] This disclosure provides an input system and a dishwasher that can effectively reduce the risk of clogging due to the residue of the detergent solution during the transportation of the input system.

Means for Solving the Problems

[0006] In a first aspect, an embodiment of this disclosure provides an input system, and the input system includes a pump body having an input joint and an output joint, A communication structure comprising a first port, a second port, and a third port communicating with each other, wherein the first port is connected to the output fitting, the second port is configured to communicate with the water supply end, and the third port is configured to communicate with the washing chamber of the dishwasher, A liquid storage structure configured to contain detergent, wherein the discharge fitting of the liquid storage structure is directly connected to the input fitting, comprising: The pump body is driven to draw the detergent from the liquid storage structure, inject the detergent into the communication structure via the first port, and inject the detergent into the communication structure via the second port by the water flow at the water supply end, thereby injecting the detergent in the communication structure into the washing chamber along the third port.

[0007] In some embodiments, the communication structure includes a first connecting pipe, and the opposing ends of the first connecting pipe are configured as the first port and the third port, respectively.

[0008] In some embodiments, the communication structure includes a second connecting pipe, one end of which penetrates the pipe wall of the first connecting pipe and communicates with the inside of the first connecting pipe, and the other end of which is away from the first connecting pipe is configured as the second port.

[0009] In some embodiments, the distance between the connection point between the second connecting pipe and the first connecting pipe and the first port is smaller than the distance between the connection point between the second connecting pipe and the first connecting pipe and the third port.

[0010] In some embodiments, the first connecting pipe and the second connecting pipe are arranged at an angle, and the second connecting pipe extends in a direction away from the water flow direction of the first connecting pipe.

[0011] In some embodiments, the first connecting pipe and / or the second connecting pipe are provided to have an arc shape. In some embodiments, the first connecting pipe comprises a first sub-stage, a second sub-stage, and a third sub-stage that are sequentially connected, the inner diameter of the second sub-stage being smaller than the inner diameters of the first sub-stage and the third sub-stage, the second sub-stage being connected to the second connecting pipe, and the inner diameter of the second connecting pipe being smaller than the inner diameter of the second sub-stage.

[0012] In some embodiments, at least one of a water supply valve, a respirator, and a water softener is connected to the second port.

[0013] In some embodiments, the second port is connected to the water supply valve and the respirator, the respirator is connected downstream of the water supply valve, and the second port is connected to one end of the respirator away from the water supply valve.

[0014] In some embodiments, the second port is connected to the water supply valve, the respirator, and the water softener, the respirator being connected downstream of the water supply valve, the water softener being connected downstream of the respirator, and the second port being connected to one end of the water softener away from the respirator.

[0015] In some embodiments, a water supply valve is connected to the second port, and a respirator and / or water softener is connected to the third port.

[0016] In a second aspect, an embodiment of the present disclosure provides a dishwasher comprising the above-described input system.

[0017] Based on the detergent dispenser and dishwasher according to the embodiments of this disclosure, a communication structure is provided having a first port, a second port, and a third port that communicate with each other, and the input fitting of the pump body is directly connected to the discharge fitting of the liquid storage structure. This allows the user to first store the detergent in the liquid storage structure, then use the pump body to draw the detergent from the liquid storage structure and inject the detergent into the communication structure via the first port, while simultaneously injecting the water flow from the water supply end into the communication structure via the second port, thereby driving the detergent in the communication structure to be injected into the washing chamber along the third port. In this way, the detergent dispenser operation is completed.

[0018] In this way, when the detergent from the liquid storage structure is introduced into the communication structure via the pump body, the introduction of water flow from the second port, combined with the washing away of detergent remaining inside the communication structure, effectively reduces the likelihood of detergent condensation inside the communication structure and the possibility of detergent remaining inside the communication structure causing blockages. Furthermore, since there is no separate piping connection between the pump body and the liquid storage structure, and they are directly connected, the loss of detergent in the piping is effectively avoided, further reducing the probability of blockages. In this way, the accuracy of the detergent amount dispensed in the dishwasher is improved, and the stability and reliability of the dishwasher's dishwashing effect can be effectively ensured. [Brief explanation of the drawing]

[0019] [Figure 1] This is a schematic diagram of a dishwasher. [Figure 2] This is a schematic diagram of the input system related to this disclosure. [Figure 3] This is a schematic diagram of the interconnected structure of the input system related to this disclosure. [Figure 4] This is a schematic diagram of another embodiment of the interconnected structure of the input system relating to this disclosure. [Figure 5] This is a schematic diagram of yet another embodiment of the interconnected structure of the input system relating to this disclosure. [Figure 6]Schematic structural diagram of yet another embodiment of the communication structure of the input system according to the present disclosure. [Figure 7] Schematic diagram showing the flow path of an embodiment of the input system according to the present disclosure. [Figure 8] Schematic diagram showing the flow path of another embodiment of the input system according to the present disclosure. [Figure 9] Schematic diagram showing the flow path of yet another embodiment of the input system according to the present disclosure.

Embodiments for Carrying Out the Invention

[0020] In order to more clearly explain the technical solutions in the embodiments or exemplary technologies of the present disclosure, the drawings used in the description of the embodiments or exemplary technologies were briefly introduced above. Obviously, the above drawings are some embodiments of the present disclosure, and for those skilled in the art, other related drawings can also be obtained based on these drawings without creative effort.

[0021] The realization of the object of the present application, functional features, and advantages will be further described in conjunction with the embodiments while referring to the drawings.

[0022] In order to more clearly explain the object, technical solution, and advantages of the present application, the embodiments of the present disclosure will be described in more detail below while referring to the drawings.

[0023] Unless otherwise specified, when the following description relates to the drawings, the same numerals in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments that conform to the present disclosure. Rather, they are examples of devices and methods that conform to specific aspects of the present disclosure as detailed in the appended claims.

[0024] In this disclosure, terms such as “first,” “second,” etc., are used solely for illustrative purposes and are not intended to indicate or imply their relative importance. Those skilled in the art will be able to understand the specific meaning of these terms in this disclosure in accordance with the specific context. In this disclosure, “plural” means two or more unless otherwise specified. The terms “and / or” describe only the associated relationship and indicate that three relationships may exist; for example, A and / or B can represent three cases: A existing independently, A and B existing together, or B existing independently. The symbol “ / ” usually indicates that the relationship between the associated objects is “or.”

[0025] Unless otherwise specified, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. Terms used herein are adopted solely to illustrate the embodiments of this disclosure and are not intended to limit the disclosure. The terms “and / or” as used herein include any and all combinations of the relevant listed items.

[0026] A dishwasher is a machine that automatically washes tableware such as bowls, chopsticks, plates, small plates, knives, and forks. Conventional dishwashers usually have a dedicated detergent dispensing system that stores the detergent and transports it to the washing chamber of the dishwasher body, where the dishes are washed with the detergent.

[0027] In related technologies, the long length of the input pipeline in the dispensing system makes it easy for detergent solution to remain in the pipeline after being dispensed. If this accumulates over a long period, it increases the risk of clogging, leading to inaccurate detergent dispensing and, furthermore, affecting the cleaning effectiveness of the dishwasher.

[0028] Referring to Figures 1 and 2, a first aspect of the present disclosure provides a dishwasher 1000, in which an embodiment of the present disclosure comprises a machine body 100, a door body 200, and a loading system 100.

[0029] The machine body 100 may have a rectangular structure and form a washing chamber (not shown) with an opening. The washing chamber is configured to hold dishes and communicates with the input system 100. The machine body 100 may be made of metal so as to have high strength and durability, and because metal has high thermal conductivity and heat transfer performance, better results can be obtained in the process in which the machine body 100 performs heat exchange and condensation drying. Of course, the machine body 100 may be made of plastic so as to have the advantage of being lightweight, and the embodiments of this disclosure are not limited to this.

[0030] The door body 200 may have a rectangular structure to match the cross-sectional shape of the washing chamber of the machine body 100, thereby enabling opening and closing of the washing chamber by the rotation of the door body 200. Here, the door body 200 may be made of glass material, for example, tempered glass material having superior strength properties. In this way, the door body 200 has excellent impact and pressure resistance, and at the same time, the user can observe the conditions inside the washing chamber from the outside through the door body 200, improving the user experience. Of course, the door body 200 may be made of metal material to have high strength itself, and this disclosure is not limited thereto.

[0031] To reduce detergent residue during the dispensing process, this disclosure focuses on improving the dispensing system 100. Referring to Figures 2 and 3, in embodiments of this disclosure, the dispensing system 100 comprises a pump body 50, a liquid storage structure 30, and a communication structure 40.

[0032] The pump body 50 may be a metering pump, and the pump body 50 can provide powered transport of detergent by sucking detergent from the liquid storage structure 30 and transporting it into the communication structure 40. In some structural configurations, the input fitting 51 may be a male fitting, and the discharge fitting 31 of the liquid storage structure 30 may be a female fitting, and when inserted, a part of the input fitting 51 enters into the discharge fitting 31 so that the two fit together precisely and prevent detergent leakage.

[0033] The liquid storage structure 30 may take the form of a rectangular block to facilitate manufacturing and installation, and the main structure of the liquid storage structure 30 may be made of a transparent plastic material, such as polypropylene (PP), polystyrene (PS), or polycarbonate (PC). This allows the user to directly observe the remaining liquid level inside the liquid storage structure 30 from the outside and obtain information about the liquid level, making it more convenient and improving the user experience. Of course, the main structure of the liquid storage structure 30 may also be made of metal.

[0034] The communication structure 40 comprises a first port 411, a second port 421, and a third port 412 that communicate with each other; that is, the communication structure 40 may be a conductive structure having multiple ports, such as a three-way or four-way pipe. The first port 411 may be directly connected to the output fitting 52, specifically by insertion or fitting, thereby further reducing detergent loss. Alternatively, the first port 411 may be indirectly connected to the output fitting 52 via a conduit. The second port 421 is configured to communicate with the water supply end; that is, it can communicate with the water supply structure of the dishwasher 1000, or the second port 421 may be directly connected to an external water source of the dishwasher 1000. On the other hand, the third port 412 is configured to communicate with the washing chamber of the dishwasher 1000. The dishwasher 1000 of this disclosure further includes a spray unit, which can spray-clean dishes in the washing chamber. As a result, the third port 412 of the communication structure 40 is connected to the water supply section of the spray unit, enabling indirect communication with the washing chamber through the spray of the spray unit, or the third port 412 of the communication structure 40 may be directly connected to the washing chamber. On the other hand, the shape and size of the openings of the first port 411, the second port 421, and the third port 412 may be the same, and in this way, each port of the communication structure 40 and the output fitting 52, the water supply end, and the washing chamber can be arbitrarily changed, thereby improving the convenience and efficiency of installation.

[0035] Based on the detergent dispensing system 100 and dishwasher 1000 of the embodiment of this disclosure, a communication structure 40 is provided having a first port 411, a second port 421, and a third port 412 that communicate with each other, and the input coupling 51 of the pump body 50 is directly connected to the discharge coupling 31 of the liquid storage structure 30. As a result, the user can first store the detergent in the liquid storage structure 30, then use the pump body 50 to suck the detergent from the liquid storage structure 30 and inject the detergent into the communication structure 40 via the first port 411, while simultaneously injecting the water flow from the water supply end into the communication structure 40 via the second port 421, thereby driving the detergent in the communication structure 40 to be injected into the washing chamber along the third port 412. In this way, the detergent dispensing operation is completed.

[0036] In this way, when the detergent from the liquid storage structure 30 is introduced into the communication structure 40 via the pump body 50, the introduction of water flow from the second port 421, combined with the washing away of detergent remaining inside the communication structure 40, effectively reduces the likelihood of detergent condensation inside the communication structure 40 and reduces the possibility of detergent remaining inside the communication structure 40 and causing blockages. Furthermore, since there is no separate piping connection between the pump body 50 and the liquid storage structure 30, and they are directly connected, the loss of detergent in the piping can be effectively avoided, further reducing the probability of blockages. In this way, the accuracy of the detergent amount dispensed by the dishwasher 1000 can be improved, and the stability and reliability of the dishwasher 1000's dishwashing effect can be effectively ensured.

[0037] Referring to Figures 2 and 3, the communication structure 40 optionally includes a first connecting pipe 41 and a second connecting pipe 42, with one end of the second connecting pipe 42 penetrating the pipe wall of the first connecting pipe 41 and communicating with the inside of the first connecting pipe 41, the opposing ends of the first connecting pipe 41 being configured as a first port 411 and a third port 412 respectively, and the end of the second connecting pipe 42 away from the first connecting pipe 41 being configured as a second port 421. Here, the first connecting pipe 41 and the second connecting pipe 42 may be in an integrated structure, which reduces the number of parts in the communication structure 40, simplifies the overall structure of the communication structure 40, and increases the overall strength of the structure. By arranging the fresh water flowing out of the second connecting pipe 42 into the first connecting pipe 41 and flowing along the direction of water flow in the first connecting pipe 41, there is no need to provide a separate space for mixing detergent and fresh water. This simplifies the structure of the connecting structure 40, simplifies manufacturing, simplifies installation, reduces the space occupied by the installation chamber, and further enables miniaturization of the dishwasher 1000.

[0038] Furthermore, the distance between the communication point between the second connecting pipe 42 and the first connecting pipe 41 and the first port 411 is smaller than the distance between the communication point between the second connecting pipe 42 and the first connecting pipe 41 and the third port 412. By arranging it in this way, the clean water at the water supply end can enter the communication structure 40 from a position close to the first port 411, and as a result, even if the detergent is located close to the first port 411 (i.e., close to the liquid storage structure 30), it can be washed away by the clean water at the water supply end, increasing the length over which the clean water at the water supply end passes through the first connecting pipe 41, and further improving the effect of washing away detergent that has accumulated inside the communication structure 40.

[0039] Optionally, the first connecting pipe 41 and / or the second connecting pipe 42 may be provided in an arc shape. Referring to Figure 3, the first connecting pipe 41 and the second connecting pipe 42 may be provided in an arc shape such as a "C" shape, which not only allows adaptation to special installation environments, but the arc-shaped first connecting pipe 41 extends the passage length of clean water and detergent, further increases the mixing time of clean water and detergent, and improves the cleaning effect. Referring to Figure 4, in another embodiment, in the arc-shaped second connecting pipe 42, if the height of the second port 421 is higher than the height of the communication section between the second connecting pipe 42 and the first connecting pipe 41, the second connecting pipe 42 can more easily guide clean water to the first connecting pipe 41, reducing detergent residue and improving the cleaning effect.

[0040] Referring also to Figure 5, in another embodiment, the first connecting pipe 41 and the second connecting pipe 42 are arranged at an angle, and the second connecting pipe 42 extends in a direction away from the water flow direction of the first connecting pipe 41. Here, the first connecting pipe 41 and the second connecting pipe 42 are arranged at an angle, specifically in an "I" shape or a "Jin" shape, and the second connecting pipe 42 extends in a direction away from the water flow direction of the first connecting pipe 41. In this way, the detergent flowing out from the second connecting pipe 42 can flow along the water flow direction of the first connecting pipe 41, making it easier for the detergent to be washed into the third port 412 and enter the washing chamber, and further reducing the retention of detergent within the communication structure 40, thereby improving the washing effect.

[0041] In some structural configurations, the first connecting pipe 41 and the second connecting pipe 42 are expansion joints. This allows for adjustment of the lengths of the first connecting pipe 41 and the second connecting pipe 42, enabling adaptation to various mounting environments. Optionally, the first connecting pipe 41 and the second connecting pipe 42 are hoses. This allows for easier bending and deformation of the first connecting pipe 41 and the second connecting pipe 42, further enabling adaptation to various mounting environments.

[0042] Referring to Figure 6, in yet another embodiment, the first connecting pipe 41 comprises a first sub-stage 41a, a second sub-stage 41b, and a third sub-stage 41c that are sequentially connected, with the inner diameter of the second sub-stage 41b being smaller than the inner diameters of the first sub-stage 41a and the third sub-stage 41c. The second sub-stage 41b is connected to the second connecting pipe 42, and the inner diameter of the second connecting pipe 42 is smaller than the inner diameter of the second sub-stage 41b. By arranging them as described above, the first connecting pipe 41 and the second connecting pipe 42 form a Venturi tube structure. When a restricted fluid passes through a reduced cross-sectional area, the fluid velocity increases, and this velocity is inversely proportional to the cross-sectional area. On the other hand, according to Bernoulli's theorem, an increase in velocity is accompanied by a decrease in fluid pressure, that is, the general Venturi phenomenon. In other words, this effect refers to the generation of low pressure near a high-speed flowing fluid, which in turn causes an adsorption effect. Specifically, when the water flow in the first connecting pipe 41 passes through the port to the second connecting pipe 42, the pressure decreases because the inner diameter of the second sub-stage 41b communicating with the second connecting pipe 42 is small, thereby carrying the detergent remaining in the second connecting pipe 42 into the first connecting pipe 41.

[0043] The above are various different structural embodiments of the communication structure 40 for improving the cleaning effect, and at the same time, the cleaning effect can also be improved by providing other components to the second port 421 and third port 412 of the communication structure 40.

[0044] Referring to Figures 7 to 9, the second port 421 is optionally connected to at least one of the following: a water supply valve 60, a respirator 70, and a water softener 80. Here, the water supply valve 60 is provided at the second port 421 and controls the amount of water supplied during each wash by controlling the water entering the communication structure 40 via the second port 421. The respirator 70 is configured to connect the communication structure 40 to the outside atmosphere, expelling air bubbles in the water flow, preventing excessive gas pressure from being generated during the wash operation, and protecting the piping and parts inside the dishwasher 1000 from damage. The water softener 80 is configured to soften the water entering the communication structure 40 via the second port 421 to form softened water. Softened water is water with calcium and magnesium salts of less than 50 mg / L, and when softened water is configured for washing, it has a better washing effect and saves detergent, thereby improving the washing effect. The above design can be applied to dishwashers 1000 with a large mounting space at the second port 421. The water supply valve 60, the respirator 70, and the water softener 80 may be butted together directly or connected via piping, and the present invention is not limited to these arrangements.

[0045] In one embodiment, referring to Figure 7, a water supply valve 60 and a respirator 70 are connected to the second port 421, the respirator 70 is connected downstream of the water supply valve 60, and the second port 421 is connected to one end of the respirator 70 away from the water supply valve 60. In this way, after the liquid storage structure 30 injects detergent into the communication structure 40 via the pump body 50, the water supply valve 60 is turned on and water enters from the water supply end, the water flow passes through the flow meter on the respirator 70, and then the water flow enters the communication structure 40, washing the detergent in the communication structure 40 into the washing chamber of the dishwasher 1000 to perform washing. In this way, the amount of water supplied at the water supply end can be precisely controlled, thereby enabling control of the detergent concentration.

[0046] In another embodiment, referring to Figure 8, a water supply valve 60, a respirator 70, and a water softener 80 are connected to the second port 421, the respirator 70 is connected downstream of the water supply valve 60, the water softener 80 is connected downstream of the respirator 70, and the second port 421 is connected to one end of the water softener 80 away from the respirator 70. In this way, after the liquid storage structure 30 injects detergent into the communication structure 40 via the pump body 50, the water supply valve 60 is turned on and water enters from the water supply end, the water flow passes through the flow meter on the respirator 70, then enters the resin chamber of the water softener 80, the resin chamber softens the water, and then enters the communication structure 40, washing the detergent in the communication structure 40 into the washing chamber of the dishwasher 1000 for washing. In this way, the amount of water supplied at the water inlet can be precisely controlled, and the clean water entering the communication structure 40 can be softened, resulting in a better cleaning effect and saving on detergent, thereby improving the cleaning performance.

[0047] In yet another embodiment, referring to Figure 9, a water supply valve 60 is connected to the second port 421, and a respirator 70 and / or a water softener 80 is connected to the third port 412. By providing the respirator 70 and water softener 80 at the third port 412, the dishwasher 1000 can be applied to dishes with a large installation space at the third port 412. Similarly, the respirator 70 is configured to communicate the third port 412 with the outside atmosphere, discharges air bubbles in the water flow, prevents excessive gas pressure from being generated during the washing operation, and protects the piping and components inside the dishwasher 1000 from damage. On the other hand, the water softener 80 is configured to soften the water passing through the third port 412 to form soft water.

[0048] In other embodiments, a water supply valve 60 and a respirator 70 may be connected to the second port 421, and a water softener 80 may be connected to the third port 412.

[0049] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar parts. It should be understood that, where the terms “up,” “down,” “left,” and “right” in this disclosure indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are merely for the convenience of describing the application and for the simplification of the description, and do not indicate or imply that the referred device or element must have a particular orientation, be configured in a particular orientation, or be operated in a particular orientation. Therefore, the terms describing positional relationships in the drawings are provided only as illustrative descriptions and should not be understood as limitations of this disclosure. The specific meanings of the above terms can be understood by those skilled in the art depending on the specific context.

[0050] The foregoing are merely preferred embodiments of the Disclosure and do not limit the Disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the Disclosure are included within the scope of protection of this Application. [Explanation of Symbols]

[0051] 1000 Dishwasher 100 units 200 Door Body 100 Input System 30 Liquid storage structures 31 Discharge fitting 40 Communication structure 41. First connecting pipe 41a First sub-section 41b Second sub-section 41c Third sub-section 411 Port 1 412 Port 3 42 Second connecting pipe 421 Port 2 50 Pump body 51 Input fitting 52 Output coupling 60 Water supply valve 70 Respiratory 80 water softener

Claims

1. A loading system configured as a dishwasher, A pump body having an input fitting and an output fitting, A communication structure comprising a first port, a second port, and a third port communicating with each other, wherein the first port is connected to the output fitting, the second port is configured to communicate with the water supply end, and the third port is configured to communicate with the washing chamber of the dishwasher, A liquid storage structure configured to contain detergent, wherein the discharge fitting of the liquid storage structure is directly connected to the input fitting, comprising: The pump body is driven to draw in the detergent from the liquid storage structure, inject the detergent into the communication structure via the first port, and inject the detergent into the communication structure via the second port by the water flow at the water supply end, thereby injecting the detergent in the communication structure into the washing chamber along the third port.

2. The feeding system according to claim 1, wherein the communication structure comprises a first connecting pipe and a second connecting pipe, one end of the second connecting pipe penetrates the pipe wall of the first connecting pipe and communicates with the inside of the first connecting pipe, the opposing ends of the first connecting pipe are configured as the first port and the third port, and the end of the second connecting pipe away from the first connecting pipe is configured as the second port.

3. The feeding system according to claim 2, wherein the distance between the connection portion between the second connecting pipe and the first connecting pipe and the first port is smaller than the distance between the connection portion between the second connecting pipe and the first connecting pipe and the third port.

4. The input system according to claim 3, wherein the first connecting pipe and the second connecting pipe are arranged at an angle, and the second connecting pipe extends in a direction away from the water flow direction of the first connecting pipe.

5. The feeding system according to any one of claims 2 to 4, wherein the first connecting pipe and / or the second connecting pipe are provided to be in the shape of an arc.

6. The feeding system according to any one of claims 2 to 4, wherein the first connecting pipe comprises a first sub-stage, a second sub-stage, and a third sub-stage that are sequentially connected, the inner diameter of the second sub-stage is smaller than the inner diameter of the first sub-stage and the inner diameter of the third sub-stage, the second sub-stage is connected to the second connecting pipe, and the inner diameter of the second connecting pipe is smaller than the inner diameter of the second sub-stage.

7. The water supply system according to any one of claims 1 to 6, wherein at least one of a water supply valve, a respirator, and a water softener is connected to the second port.

8. The second port is connected to the water supply valve and the respirator, the respirator is connected downstream of the water supply valve, and the second port is connected to one end of the respirator away from the water supply valve. Alternatively, the water supply valve, the respirator, and the water softener are connected to the second port, the respirator is connected downstream of the water supply valve, the water softener is connected downstream of the respirator, and the second port is connected to one end of the water softener away from the respirator, according to claim 7.

9. The water supply system according to any one of claims 1 to 6, wherein a water supply valve is connected to the second port, and a respirator and / or water softener is connected to the third port.

10. It is a dishwasher, A dishwasher comprising the input system described in any one of claims 1 to 9.

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