Dishwasher

Abstract

The utility model relates to the technical field of tableware cleaning, and discloses a dish-washing machine which comprises an inner container, a spraying assembly, a sensor and a descaling device, the inner container is provided with a water cup, the spraying assembly is arranged in the inner container and connected with the water cup, the spraying assembly is used for spraying cleaning fluid, and the sensor is arranged in the inner container and connected with the water cup. The sensor is used for detecting a sound pressure value when the spraying assembly sprays out the cleaning fluid, the descaling device is connected with the water cup, and under the condition that the sensor detects that the sound pressure value when the spraying assembly sprays out the cleaning fluid is smaller than or equal to a preset value, the descaling device is turned on, and the dish washing machine enters a descaling mode. According to the dishwasher, the sensor can judge the scale generation condition in the dishwasher in time so as to control the descaling device to be turned on in time, the situation that the dishwasher is damaged and cannot work normally due to scale accumulation in the dishwasher is avoided, the descaling device can automatically add the descaling liquid into the water cup in the descaling process, manual operation of a user is not needed, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tableware cleaning technical field, concretely relates to dish washer. BACKGROUND

[0002] Dish washer as a kind of emerging kitchen household electrical appliances product, help many people solve the trouble of unwilling to wash dishes.Dish washer sprays washing liquid by spraying component to realize the automatic cleaning of bowl, in the process of long time using tap water washing, scale will be formed in the inner wall of water cup and the pipe wall of spraying component in dish washer, scale will block pipeline, cause dish washer to be unable to work normally, serious time can also cause dish washer damage. SUMMARY

[0003] Therefore, the utility model provides a kind of dish washer to solve the problem that scale will be formed in the inner wall of water cup and the pipe wall of spraying component in dish washer in the process of long time using tap water washing in existing dish washer, scale will block pipeline, cause dish washer to be unable to work normally, serious time can also cause dish washer damage.

[0004] The utility model provides a kind of dish washer, including inner container, spraying component, sensor and scale removal device, the inner container is equipped with water cup, the spraying component is set to the inner container, the spraying component is connected with the water cup, the spraying component is used to spray cleaning liquid, the sensor is set to the inner container, the sensor is used to detect the sound pressure value when the spraying component sprays cleaning liquid, the scale removal device is connected with the water cup;In the case that the sound pressure value when the spraying component sprays cleaning liquid is detected by the sensor is less than or equal to preset value, the scale removal device opens, and the dish washer enters scale removal mode.

[0005] Beneficial effect: the dish washer of the application, when dish washer works normally, spraying component extracts and sprays the cleaning liquid in water cup to tableware in dish washer, realizes automatic cleaning, when the sound pressure value when the spraying component sprays cleaning liquid is detected by sensor less than or equal to preset value, scale removal device opens, and dish washer enters scale removal mode, scale removal device transports scale removal liquid to water cup, and spraying component extracts and sprays the cleaning liquid mixed with scale removal liquid in water cup, to realize the scale removal of the inner wall of water cup and the pipe wall of spraying component, the sensor of the application can judge the scale generation in dish washer in time to control scale removal device to open in time, avoid the damage caused by scale accumulation in dish washer, unable to work normally, in the scale removal process, scale removal device can automatically add scale removal liquid to water cup, without manual operation, improve user experience.

[0006] In some embodiments, the sensor is disposed on the side wall of the inner container and is disposed close to the spraying component.

[0007] Beneficial effects: The sensor is arranged on the side wall of the inner container, which is convenient to install, and the sensor is arranged close to the spraying assembly, so that the sound pressure value when the spraying assembly sprays cleaning liquid can be detected more clearly, and the accuracy of the sensor detection result is improved.

[0008] In some embodiments, the spraying assembly comprises a liquid spraying pipe and a spraying arm, the liquid spraying pipe is connected with the water cup, the liquid spraying pipe is provided with a washing pump, the spraying arm is in communication with a liquid outlet of the liquid spraying pipe, and a plurality of water spraying openings are arranged on the spraying arm.

[0009] Beneficial effects: When the dishwasher is working normally, the washing pump is opened, the cleaning liquid in the water cup flows to the spraying arm through the liquid spraying pipe, and is sprayed out through the plurality of water spraying openings of the spraying arm, so that automatic cleaning of tableware is realized; when the dishwasher enters the descaling mode, the descaling device inputs descaling liquid into the water cup, the washing pump is opened, the descaling liquid in the water cup flows to the spraying arm through the liquid spraying pipe and is sprayed out, and then the descaling of the water cup and the spraying assembly is realized.

[0010] In some embodiments, the descaling device comprises a descaling box and a descaling water channel, the descaling box is used for storing descaling liquid, one end of the descaling water channel is connected with the descaling box, the other end of the descaling water channel is connected with the water cup, and a descaling pump is arranged on the descaling water channel; when the sensor detects that the sound pressure value when the spraying assembly sprays cleaning liquid is less than or equal to a preset value, the descaling pump is opened, and the descaling liquid flows into the water cup through the descaling water channel.

[0011] Beneficial effects: When the descaling device needs to be opened, the descaling pump is opened, the descaling liquid in the descaling box flows into the water cup through the descaling water channel, so that the descaling liquid is automatically added into the water cup, and automatic descaling operation of the dishwasher is facilitated.

[0012] In some embodiments, the descaling device further comprises a storage container and an adding pipeline, the storage container is used for storing a descaling agent, the adding pipeline is connected with the storage container and the descaling box, and a feeder is arranged on the adding pipeline; the feeder is used for feeding the descaling agent in the storage container into the descaling box, and the descaling agent is dissolved in the descaling box to form the descaling liquid.

[0013] Beneficial effects: When the descaling device is opened, the feeder is opened, the descaling agent in the storage container is fed into the descaling box through the adding pipeline, and the descaling agent is dissolved in the descaling box to form the descaling liquid, so that the descaling liquid is continuously provided for the descaling process.

[0014] In some embodiments, the descaling device further comprises a liquid level detection structure arranged on the descaling box, and when the liquid level detection structure detects that the liquid level in the descaling box is equal to zero, the descaling pump is closed.

[0015] Beneficial effects: The liquid level detection structure can continuously detect the liquid level in the descaling tank. When the liquid level detection structure detects that the liquid level in the descaling tank is equal to zero, the descaling pump is closed, and the entire descaling process is completed.

[0016] In some embodiments, the dishwasher further comprises a water replenishing system connected with the water cup and the descaling tank for replenishing water in the water cup and the descaling tank.

[0017] Beneficial effects: The water replenishing system can automatically replenish water in the water cup and the descaling tank, meeting the water demand of the dishwasher in normal operation and in the descaling mode.

[0018] In some embodiments, the water replenishing system comprises a water inlet pipeline, a first water replenishing pipeline, a second water replenishing pipeline, and a control valve group. The first water replenishing pipeline is connected with the water inlet pipeline and the water cup. The second water replenishing pipeline is connected with the water inlet pipeline and the descaling tank. In the case that the water cup needs to be replenished, the control valve group connects the water inlet pipeline with the first water replenishing pipeline. In the case that the descaling tank needs to be replenished, the control valve group connects the water inlet pipeline with the second water replenishing pipeline.

[0019] Beneficial effects: In the case that the dishwasher is in normal operation and the water cup needs to be replenished, the control valve group connects the water inlet pipeline with the first water replenishing pipeline, and water flows from the water inlet pipeline to the water cup through the first water replenishing pipeline to automatically replenish water in the water cup, meeting the water demand of the dishwasher in normal operation. In the case that the dishwasher is in the descaling mode and the descaling tank needs to be replenished, the control valve group connects the water inlet pipeline with the second water replenishing pipeline, and water flows from the water inlet pipeline to the descaling tank through the second water replenishing pipeline to automatically replenish water in the descaling tank, meeting the water demand of the dishwasher in the descaling mode.

[0020] In some embodiments, the control valve group comprises a water inlet valve and a three-way valve. The water inlet valve is arranged in the water inlet pipeline. The three-way valve is arranged at the connection of the water inlet pipeline, the first water replenishing pipeline, and the second water replenishing pipeline. In the case that the water cup needs to be replenished, the water inlet valve is opened, and the three-way valve connects the water inlet pipeline with the first water replenishing pipeline. In the case that the descaling tank needs to be replenished, the water inlet valve is opened, and the three-way valve connects the water inlet pipeline with the second water replenishing pipeline.

[0021] Beneficial effects: the above-mentioned setting, in the case of water cup needing water replenishment, the water inlet valve is opened, the three-way valve is communicated with the first water replenishment pipeline, water flows into the water inlet pipeline, and then flows into the water cup through the water inlet valve, the three-way valve and the first water replenishment pipeline; in the case of descaling box needing water replenishment, the water inlet valve is opened, the three-way valve is communicated with the second water replenishment pipeline, water flows into the water inlet pipeline, and then flows into the descaling box through the water inlet valve, the three-way valve and the second water replenishment pipeline.

[0022] In some embodiments, the water replenishment system further comprises a flow meter, and the flow meter is arranged on the water inlet pipeline.

[0023] Beneficial effects: the flow meter can monitor and count the water flowing through the water inlet pipeline, so as to know the water consumption in time.

[0024] In some embodiments, the dishwasher further comprises a drainage system, and the drainage system is connected with the water cup, and the drainage system is used for draining the solution in the water cup.

[0025] Beneficial effects: the drainage system can drain the solution in the water cup after the dishwasher washing or descaling is completed, so that the inside of the dishwasher is kept dry.

[0026] In some embodiments, the drainage system comprises a drainage pipeline, and the drainage pipeline is communicated with the bottom of the water cup, and a drainage pump is arranged on the drainage pipeline, and the drainage pump is opened to communicate the drainage pipeline in the case of water cup needing drainage.

[0027] Beneficial effects: when the water needs to be drained, the drainage pump is opened, and the water in the water cup flows out through the drainage pipeline, and the drainage pipeline is communicated with the bottom of the water cup, which is beneficial to the water in the water cup being drained. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0029] Figure 1 It is a structure schematic view of the dishwasher of an embodiment of the present application;

[0030] Figure 2 It is a structure schematic view of the descaling box of an embodiment of the present application.

[0031] EXPLANATION OF REFERENCE NUMERALS

[0032] 1, inner container; 11, water cup;

[0033] 2. spray assembly; 21. spray pipe; 211. washing pump; 22. spray arm;

[0034] 3. sensor;

[0035] 4. descaling device; 41. descaling tank; 42. descaling waterway; 421. descaling pump; 43. storage container; 44. adding pipeline; 441. feeder;

[0036] 5. water replenishing system; 51. water inlet pipeline; 52. first water replenishing pipeline; 53. second water replenishing pipeline; 54. control valve group; 541. water inlet valve; 542. three-way valve; 55. flow meter;

[0037] 6. drainage system; 61. drainage pipeline; 62. drainage pump; 7. bowl; 8. float. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0039] In the description of the present application, it should be noted that the directions or position relationships indicated by the terms "center", "upper", "lower", "inner", "outer" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated by the terms to have a specific direction, to be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application.

[0040] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. Those skilled in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.

[0041] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0042] The following will be described in combination withFigures 1 to 2 The embodiment of the utility model discloses.

[0043] As Figure 1 Indicated, according to the embodiment of the utility model, one aspect, disclose a kind of dish washer, including inner container 1, spray assembly 2, sensor 3 and scale removal device 4, wherein, inner container 1 is equipped with water cup 11, spray assembly 2 is arranged in inner container 1, spray assembly 2 and water cup 11 are connected, spray assembly 2 is used to spray cleaning fluid, sensor 3 is arranged in inner container 1, sensor 3 is used to detect the sound pressure value when spray assembly 2 sprays cleaning fluid, scale removal device 4 and water cup 11 are connected, in the case where the sound pressure value when spray assembly 2 sprays cleaning fluid is detected by sensor 3 is less than or equal to preset value, scale removal device 4 opens, and dish washer enters scale removal mode.

[0044] The dish washer of the application, when dish washer works normally, spray assembly 2 extracts and sprays the cleaning fluid in water cup 11 to the tableware in dish washer, realizes automatic cleaning, when sensor 3 detects the sound pressure value when spray assembly 2 sprays cleaning fluid is less than or equal to preset value, scale removal device 4 opens, and dish washer enters scale removal mode, and scale removal device 4 transports scale removal liquid to water cup 11, and spray assembly 2 extracts and sprays the cleaning fluid mixed with scale removal liquid in water cup 11, to realize the scale removal of the inner wall of water cup 11 and the pipe wall of spray assembly 2, and the sensor 3 of the application can judge the scale formation in dish washer in time to control scale removal device 4 to open in time, to avoid the damage caused by scale accumulation in dish washer, and the dish washer cannot work normally, in the scale removal process, scale removal device 4 can automatically add scale removal liquid to water cup 11, without manual operation, to improve user experience.

[0045] It can be understood that, under the condition that dish washer works normally, when sensor 3 detects the sound pressure value when spray assembly 2 sprays cleaning fluid is greater than preset value, it indicates that the scale in dish washer does not reach preset threshold value, in the case where dish washer enters scale removal mode, sensor 3 continuously detects the sound pressure value when spray assembly 2 sprays cleaning fluid, and if it is detected that the sound pressure value is greater than preset value, it indicates that the scale in dish washer has been removed, and scale removal device 4 can be closed according to needs.

[0046] When dish washer is newly installed or just cleaned thoroughly, the sound pressure value generated when spray assembly 2 sprays cleaning fluid is 40dB-50dB, so preset value is set to be lower than 40dB, to effectively judge whether scale exists in dish washer. For example, preset value can be set to 35dB, but is not limited to this.

[0047] Specifically, sensor 3 can be sound sensor.

[0048] As Figure 1 Indicated, in some embodiments, sensor 3 is arranged on the side wall of inner container 1 and is arranged close to spray assembly 2.

[0049] The sensor 3 is arranged on the side wall of the inner container 1, convenient to install, and is arranged close to the spraying assembly 2, so that the sound pressure value when the spraying assembly 2 sprays cleaning liquid can be more clearly detected, and the accuracy of the detection result of the sensor 3 is improved.

[0050] In some embodiments, the spraying assembly 2 comprises a liquid spraying pipe 21 and a spraying arm 22, wherein the liquid spraying pipe 21 is connected with the water cup 11, the liquid spraying pipe 21 is provided with a washing pump 211, the spraying arm 22 is in communication with the liquid outlet of the liquid spraying pipe 21, and a plurality of water spraying openings are arranged on the spraying arm 22.

[0051] When the dishwasher is normally working, the washing pump 211 is opened, the cleaning liquid in the water cup 11 flows to the spraying arm 22 through the liquid spraying pipe 21, and is sprayed out through the plurality of water spraying openings of the spraying arm 22, so as to realize automatic cleaning of the tableware; when the dishwasher enters the descaling mode, the descaling device 4 inputs descaling liquid into the water cup 11, the washing pump 211 is opened, and the descaling liquid in the water cup 11 flows to the spraying arm 22 through the liquid spraying pipe 21 and is sprayed out, so as to realize descaling of the water cup 11 and the spraying assembly 2.

[0052] It should be noted that, before the dishwasher enters the descaling mode, the water in the water cup 11 can be drained first and then the descaling device 4 is opened, so as to improve the descaling effect and avoid dilution of the descaling liquid by the residual water in the water cup 11. Of course, in other embodiments, the water in the water cup 11 can not be drained in advance, and the descaling liquid concentration in the water cup 11 will gradually increase as the descaling proceeds.

[0053] As shown in FIG. 1, Figure 1 In some embodiments, the descaling device 4 comprises a descaling box 41 and a descaling water path 42, wherein the descaling box 41 is used for storing descaling liquid, one end of the descaling water path 42 is connected with the descaling box 41, the other end of the descaling water path 42 is connected with the water cup 11, and a descaling pump 421 is arranged on the descaling water path 42. When the sensor 3 detects that the sound pressure value when the spraying assembly 2 sprays cleaning liquid is less than or equal to a preset value, the descaling pump 421 is opened, and the descaling liquid flows into the water cup 11 through the descaling water path 42.

[0054] When the descaling device 4 needs to be opened, the descaling pump 421 is opened, the descaling liquid in the descaling box 41 flows into the water cup 11 through the descaling water path 42, so as to realize automatic addition of the descaling liquid into the water cup 11, and facilitate automatic descaling operation of the dishwasher.

[0055] As shown in FIG. 1, Figure 1As shown, in some embodiments, the descaling device 4 further comprises a storage container 43 for storing the descaling agent and an adding pipeline 44 connected to the storage container 43 and the descaling tank 41, the adding pipeline 44 is provided with a dispenser 441 for dispensing the descaling agent in the storage container 43 into the descaling tank 41, and the descaling agent is dissolved in the descaling tank 41 to form the descaling liquid.

[0056] The above arrangement can continuously provide the descaling liquid for the descaling process when the descaling device 4 is opened, the dispenser 441 is opened, the descaling agent in the storage container 43 is dispensed into the descaling tank 41 through the adding pipeline 44, and the descaling agent is dissolved in the descaling tank 41 to form the descaling liquid.

[0057] It should be noted here that the descaling tank 41 stores water, and the descaling agent can be dissolved in water in the descaling tank 41 to form the descaling liquid.

[0058] In some embodiments, the descaling device 4 further comprises a liquid level detection structure arranged in the descaling tank 41, and the descaling pump 421 is closed when the liquid level detection structure detects that the liquid level in the descaling tank 41 is equal to zero.

[0059] The liquid level detection structure can continuously detect the liquid level in the descaling tank 41, and the descaling pump 421 is closed when the liquid level detection structure detects that the liquid level in the descaling tank 41 is equal to zero, and the entire descaling process is completed.

[0060] Specifically, as shown in the drawings, Figure 2 The liquid level detection structure can be a float 8 arranged in the descaling tank 41 and floating on the liquid surface, and when the float 8 sinks to the bottom of the descaling tank 41, it indicates that the liquid level in the descaling tank 41 is equal to zero, and a signal can be sent to control the descaling pump 421 to be closed.

[0061] Of course, in other embodiments, the liquid level detection structure can also be a liquid level sensor 3 inserted into the descaling tank 41 and extending to the bottom of the descaling tank 41, and when the liquid level detection structure cannot detect the liquid level, it indicates that the liquid level in the descaling tank 41 is equal to zero, and a signal can be sent to control the descaling pump 421 to be closed.

[0062] As shown in the drawings, Figure 1 In some embodiments, the dishwasher further comprises a water replenishing system 5 connected to the water cup 11 and the descaling tank 41 for replenishing water into the water cup 11 and the descaling tank 41.

[0063] The water replenishing system 5 can automatically replenish water to the water cup 11 and the descaling tank 41 to meet the water demand of the normal operation of the dishwasher and the descaling mode.

[0064] As shown in the drawings, Figure 1As shown, in some embodiments, the water replenishment system 5 includes an inlet pipe 51, a first water replenishment pipe 52, a second water replenishment pipe 53, and a control valve assembly 54. The first water replenishment pipe 52 is connected to the inlet pipe 51 and the water cup 11, and the second water replenishment pipe 53 is connected to the inlet pipe 51 and the descaling tank 41. When the water cup 11 needs to be replenished, the control valve assembly 54 connects the inlet pipe 51 to the first water replenishment pipe 52. When the descaling tank 41 needs to be replenished, the control valve assembly 54 connects the inlet pipe 51 to the second water replenishment pipe 53.

[0065] The above settings allow for automatic water replenishment of the water cup 11 when the dishwasher is operating normally and the water cup 11 needs refilling. In this case, the control valve assembly 54 connects the inlet pipe 51 to the first refill pipe 52, allowing water to flow from the inlet pipe 51 and through the first refill pipe 52 into the water cup 11, thus automatically replenishing the water cup 11 and meeting the normal washing water requirements of the dishwasher. When the dishwasher is in descaling mode and the descaling tank 41 needs refilling, the control valve assembly 54 connects the inlet pipe 51 to the second refill pipe 53, allowing water to flow from the inlet pipe 51 and through the second refill pipe 53 into the descaling tank 41, thus automatically replenishing the descaling tank 41 and meeting the descaling water requirements of the dishwasher.

[0066] like Figure 1 As shown, in some embodiments, the control valve assembly 54 includes an inlet valve 541 and a three-way valve 542. The inlet valve 541 is located in the inlet pipe 51, and the three-way valve 542 is located at the connection between the inlet pipe 51, the first water supply pipe 52, and the second water supply pipe 53. When the water cup 11 needs to be replenished, the inlet valve 541 opens, and the three-way valve 542 connects the inlet pipe 51 with the first water supply pipe 52. When the descaling tank 41 needs to be replenished, the inlet valve 541 opens, and the three-way valve 542 connects the inlet pipe 51 with the second water supply pipe 53.

[0067] In the above configuration, when the water cup 11 needs to be replenished with water, the inlet valve 541 is opened and the three-way valve 542 connects the inlet pipe 51 with the first replenishment pipe 52, allowing water to flow in from the inlet pipe 51 and sequentially through the inlet valve 541, the three-way valve 542, and the first replenishment pipe 52 into the water cup 11; when the descaling tank 41 needs to be replenished with water, the inlet valve 541 is opened and the three-way valve 542 connects the inlet pipe 51 with the second replenishment pipe 53, allowing water to flow in from the inlet pipe 51 and sequentially through the inlet valve 541, the three-way valve 542, and the second replenishment pipe 53 into the descaling tank 41.

[0068] Since the inlet valve 541 and the three-way valve 542 are existing technologies, they will not be described in detail in this embodiment.

[0069] As an alternative implementation, the control valve assembly 54 can also be configured to include an inlet valve 541, a first valve, and a second valve. The inlet valve 541 is located in the inlet pipe 51, the first valve is located in the first water supply pipe 52, and the second valve is located in the second water supply pipe 53. When the water cup 11 needs to be replenished with water, the inlet valve 541 and the first valve are opened. When the descaling tank 41 needs to be replenished with water, the inlet valve 541 and the second valve are opened.

[0070] like Figure 1 As shown, in some embodiments, the water replenishment system 5 further includes a flow meter 55, which is disposed in the water inlet pipe 51.

[0071] The flow meter 55 can monitor and count the water flowing through the inlet pipe 51 to understand the water consumption in a timely manner.

[0072] Specifically, the flow meter 55 is located downstream of the inlet valve 541. When the inlet valve 541 is closed, it can cut off the water flow and prevent the water from flowing to the flow meter 55.

[0073] In some embodiments, the dishwasher also includes a drainage system 6 connected to a water cup 11, the drainage system 6 being used to drain the solution in the water cup 11.

[0074] The drainage system 6 can drain the solution in the water cup 11 after the dishwasher has finished washing or descaling, keeping the inside of the dishwasher dry.

[0075] The descaling agent can be composed of citric acid. Citric acid (C6H8O7) reacts with scale to produce CaC6H5O7 and MgC6H5O7, which are easily soluble in water. After the descaling is completed, they will be discharged from the water cup 11 by the drain pump 62.

[0076] like Figure 1 As shown, in some embodiments, the drainage system 6 includes a drainage pipe 61 that is connected to the bottom of the water cup 11. A drainage pump 62 is provided on the drainage pipe 61. When the water cup 11 needs to drain, the drainage pump 62 is turned on to open the drainage pipe 61.

[0077] When drainage is needed, the drain pump 62 is turned on, and the water in the cup 11 flows out through the drain pipe 61, connecting the drain pipe 61 and the bottom of the cup 11, which is conducive to emptying the water in the cup 11.

[0078] In addition to the above-mentioned features, the dishwasher also includes a dish rack 7, which is used to place tableware. The dish rack 7 is located in the inner tub 1, and the dish rack 7 and the multiple spray nozzles of the spray arm 22 are arranged opposite to each other so that the cleaning liquid can be sprayed onto the dish rack 7 through the spray arm 22 to rinse the tableware in the dish rack 7.

[0079] To facilitate understanding of the dishwasher of this utility model, the following description is provided in conjunction with the appendix to the specification.Figure 1 and the accompanying drawings Figure 2 The use process is as follows:

[0080] When the dishwasher is working normally, the washing pump 211 is opened, the cleaning liquid in the water cup 11 flows to the spray arm 22 through the spray pipe 21, and is sprayed out through the multiple water outlets of the spray arm 22, so as to realize automatic cleaning of the tableware in the bowl 7. When the washing is completed, the washing pump 211 is closed, the drain pump 62 is opened, and the water in the water cup 11 is drained through the drain pipeline 61, so as to keep the water cup 11 dry.

[0081] When the water cup 11 needs to be replenished with water, the water inlet valve 541 is opened, and the three-way valve 542 is connected to the first water replenishing pipeline 52, so that water flows in from the water inlet pipeline 51, and then flows into the water cup 11 through the water inlet valve 541, the flow meter 55, the three-way valve 542, and the first water replenishing pipeline 52, thereby realizing automatic water replenishment of the water cup 11.

[0082] When the dishwasher is working normally, the sensor 3 continuously detects the sound pressure value when the spray assembly 2 sprays cleaning liquid. When the sound pressure value when the spray assembly 2 sprays cleaning liquid is less than or equal to a preset value, the dispenser 441, the descaling pump 421, and the washing pump 211 are opened, the descaling agent in the storage container 43 is dispensed into the descaling tank 41 through the dispenser 441, the descaling agent is dissolved to form descaling liquid when meeting water in the descaling tank 41, the descaling liquid flows into the water cup 11 through the descaling pipeline 42, and the washing pump 211 draws the descaling liquid in the water cup 11 to flow into the spray pipe 21, and then is sprayed out through the multiple water outlets of the spray arm 22, thereby realizing descaling of the water cup 11 and the spray assembly 2.

[0083] During the descaling process, when the liquid level detection structure detects that the liquid level in the descaling tank 41 is low, the water inlet valve 541 is opened, and the three-way valve 542 is connected to the second water replenishing pipeline 53, so that water flows in from the water inlet pipeline 51, and then flows into the descaling tank 41 through the water inlet valve 541, the flow meter 55, the three-way valve 542, and the second water replenishing pipeline 53, thereby realizing automatic water replenishment of the descaling tank 41.

[0084] During the descaling process, the sensor 3 continuously detects the sound pressure value when the spray assembly 2 sprays cleaning liquid. When the sound pressure value when the spray assembly 2 sprays cleaning liquid is greater than a preset value, it indicates that the descaling is completed, the dispenser 441 is closed, the descaling pump 421 is kept running, until the liquid level detection structure detects that the liquid level in the descaling tank 41 is zero, the descaling pump 421 is closed, the drain pump 62 is opened, the water in the water cup 11 is drained through the drain pipeline 61, and the dishwasher ends the descaling mode.

[0085] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the present application.

Claims

1. A dishwasher, characterized in that The application relates to a dishwasher, which comprises: a water tank (1) provided with a water cup (11); a spraying assembly (2) arranged in the water tank (1), the spraying assembly (2) being connected with the water cup (11) and used for spraying cleaning liquid; a sensor (3) arranged in the water tank (1) and used for detecting the sound pressure value of the spraying assembly (2) when spraying cleaning liquid; a descaling device (4) connected with the water cup (11); when the sensor (3) detects that the sound pressure value of the spraying assembly (2) when spraying cleaning liquid is less than or equal to a preset value, the descaling device (4) is opened, and the dishwasher enters a descaling mode.

2. The dishwasher according to claim 1, characterized in that The sensor (3) is arranged on the side wall of the water tank (1) and is arranged close to the spraying assembly (2).

3. The warewashing machine of claim 1, wherein, The spraying assembly (2) comprises: a liquid spraying pipe (21) connected with the water cup (11) and provided with a washing pump (211); a spraying arm (22) communicated with the liquid outlet of the liquid spraying pipe (21) and provided with a plurality of water spraying openings.

4. The dishwasher according to any one of claims 1 to 3, characterized in that The descaling device (4) comprises: a descaling box (41) used for storing descaling liquid; a descaling water channel (42) having one end connected with the descaling box (41) and the other end connected with the water cup (11), the descaling water channel (42) being provided with a descaling pump (421), and when the sensor (3) detects that the sound pressure value of the spraying assembly (2) when spraying cleaning liquid is less than or equal to a preset value, the descaling pump (421) is opened, and the descaling liquid flows into the water cup (11) through the descaling water channel (42).

5. The warewash machine of claim 4 wherein, The descaling device (4) further comprises: a storage container (43) used for storing descaling agent; an adding pipeline (44) connected with the storage container (43) and the descaling box (41), the adding pipeline (44) being provided with a feeder (441) used for feeding the descaling agent in the storage container (43) into the descaling box (41), and the descaling agent is dissolved in the descaling box (41) to form the descaling liquid.

6. The warewash machine of claim 4 wherein, The descaling device (4) further comprises a liquid level detection structure arranged in the descaling box (41), and when the liquid level detection structure detects that the liquid level in the descaling box (41) is equal to zero, the descaling pump (421) is closed.

7. The warewash machine of claim 4 wherein, The dishwasher further comprises a water supplement system (5) connected with the water cup (11) and the descaling box (41) and used for supplementing water into the water cup (11) and the descaling box (41).

8. The warewash machine of claim 7, wherein, The water supplement system (5) comprises: a water inlet pipeline (51); a first water supplement pipeline (52) connected with the water inlet pipeline (51) and the water cup (11); a second water supplement pipeline (53) connected with the water inlet pipeline (51) and the descaling box (41). A control valve group (54) is provided, which is connected to the water inlet pipeline (51), the first water supplement pipeline (52) and the second water supplement pipeline (53). When the water cup (11) needs to be supplemented with water, the control valve group (54) connects the water inlet pipeline (51) with the first water supplement pipeline (52); when the descaling tank (41) needs to be supplemented with water, the control valve group (54) connects the water inlet pipeline (51) with the second water supplement pipeline (53).

9. The warewash machine of claim 8, wherein, The control valve group (54) comprises: a water inlet valve (541) arranged on the water inlet pipeline (51); a three-way valve (542) arranged at the joint of the water inlet pipeline (51), the first water supplement pipeline (52) and the second water supplement pipeline (53). When the water cup (11) needs to be supplemented with water, the water inlet valve (541) is opened and the three-way valve (542) connects the water inlet pipeline (51) with the first water supplement pipeline (52); when the descaling tank (41) needs to be supplemented with water, the water inlet valve (541) is opened and the three-way valve (542) connects the water inlet pipeline (51) with the second water supplement pipeline (53). 10.The dish washer of claim 8, wherein The water supplement system (5) further comprises a flow meter (55) arranged on the water inlet pipeline (51).

11. The warewashing machine according to any one of claims 1 to 3, wherein, The dishwasher further comprises a water draining system (6) connected to the water cup (11) and used for draining the solution in the water cup (11). 12.The dish washer of claim 11, wherein The water draining system (6) comprises a water draining pipeline (61) connected to the bottom of the water cup (11) and provided with a water draining pump (62). When the water cup (11) needs to be drained, the water draining pump (62) is opened to connect the water draining pipeline (61).

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