A method for detecting blockage of a dishwasher slag basket and a slag basket structure for preventing odor

Abstract

The present invention relates to a method for detecting blockage of a slag basket of a dishwasher and a slag basket structure for preventing odor recurrence, which is characterized in that: a water flow velocity detection device for detecting the flow velocity of discharged washing water is arranged below the slag basket body of the dishwasher, and in the cleaning stage or the drainage stage of the dishwasher, the flow velocity of washing water discharged from the slag basket is detected in real time by the water flow velocity detection device, and whether the slag basket is blocked is judged according to the result output by the water flow velocity detection device: when the water flow velocity detection device outputs a water flow velocity greater than or equal to a preset value, it is judged that the slag basket is not blocked; when the result output by the water flow velocity detection device is less than the preset value, it is judged that the slag basket is blocked. Compared with the prior art, the advantages of the present invention are: by arranging a water flow velocity detection device for detecting the flow velocity of discharged washing water below the slag basket body, the water flow velocity detection device is used to detect the flow velocity of washing water discharged from the slag basket in real time, thereby judging whether the slag basket is blocked, which is simple and reliable, and saves energy and reduces consumption.

Description

Technical Field

[0001] The invention relates to a method for detecting the blockage of a slag basket of a dishwasher and a slag basket structure for preventing odor recurrence. Background Art

[0002] A dishwasher is a household appliance that can automatically wash dishes, plates, cups, pots and other tableware. It has brought great convenience to human life and reduced housework. The drainage system is an important part of the dishwasher. It circulates water and drains water according to the washing program to achieve the function of washing dishes. At the end of washing, it needs to drain the washing water in the dishwasher cup. A slag basket is set at the entrance of the existing drainage system to intercept most of the food residue, but the slag basket has problems such as foreign matter clogging and odor. This will not only affect the drying effect of the dishwasher, but also affect the customer's experience and reduce the competitiveness of the product. Summary of the invention

[0003] The first technical problem to be solved by the present invention is to provide a dishwasher slag basket blockage detection method which can effectively detect whether the dishwasher slag basket is blocked in view of the above-mentioned prior art.

[0004] The second technical problem to be solved by the present invention is to provide an anti-odor slag basket structure which can effectively prevent odor from rising and returning water in response to the above-mentioned prior art.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problem is: a method for detecting blockage of a slag basket of a dishwasher, characterized in that: a water flow velocity detection device for detecting the flow velocity of discharged washing water is arranged below the slag basket body of the dishwasher, and in the cleaning stage or the drainage stage of the dishwasher, the flow velocity of washing water discharged from the slag basket is detected in real time by the water flow velocity detection device, and whether the slag basket is blocked is judged according to the result output by the water flow velocity detection device: when the water flow velocity detection device outputs a water flow velocity greater than or equal to a preset value, it is judged that the slag basket is not blocked; when the result output by the water flow velocity detection device is less than the preset value, it is judged that the slag basket is blocked.

[0006] Preferably, the water flow velocity detection device comprises an impeller shaft arranged below the slag basket body of the dishwasher, an impeller-type cutting blade connected to the impeller shaft, and an impeller generator connected to the impeller shaft. In the cleaning stage or drainage stage of the dishwasher, the washing water flowing out of the slag basket drives the impeller-type cutting blade and the impeller shaft to rotate. After the impeller shaft rotates, it drives the impeller generator to output a current value. According to the flow rate of the washing water, the impeller generator will output current values ​​of different sizes. According to the size of the current value output by the impeller generator, the size of the water flow velocity is judged, and then whether the slag basket is blocked is judged; when the output current value of the impeller generator is greater than or equal to the preset current value, it is judged that the slag basket is not blocked; when the output current value of the impeller generator is less than the preset current value, it is judged that the slag basket is blocked. The above-mentioned water flow velocity detection device can also use the kinetic energy and potential energy of the water flow to convert it into the rotational power of the impeller-type cutting blade, which can cut foreign matter flowing through the slag basket and further prevent the slag basket from being blocked.

[0007] Preferably, when the output current value of the impeller generator is less than the preset current value and greater than or equal to the first preset current value, the slag basket is judged to be slightly blocked; when the output current value of the impeller generator is less than the preset current value, less than the first preset current value and greater than or equal to zero, the slag basket is judged to be severely blocked; wherein the first preset current value is greater than 0; the preset current value is greater than the first preset current value.

[0008] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: a dishwasher slag basket structure, including a slag basket body, characterized in that: a water flow velocity detection device for detecting the flow velocity of discharged washing water is provided under the slag basket body, and whether the slag basket is blocked is detected by the above-mentioned blockage detection method.

[0009] As an improvement, a filter residue cavity is formed in the slag basket body, and the water flow velocity detection device is arranged on the slag basket body and located below the filter residue cavity.

[0010] As a further improvement, the slag basket body is formed with a supporting pin below the filter residue chamber, and the water flow velocity detection device includes an impeller shaft rotatably connected to the supporting pin, an impeller cutting blade connected to the impeller shaft, and an impeller generator connected to the impeller shaft. During the cleaning stage or drainage stage of the dishwasher, the washing water flowing out of the filter residue chamber drives the impeller cutting blade and the impeller shaft to rotate, and the impeller shaft rotates to drive the impeller generator to output a current value. According to the flow rate of the washing water, the impeller generator will output current values ​​of different sizes. According to the size of the current value output by the impeller generator, the size of the water flow velocity is judged, and then whether the slag basket is blocked is judged; when the output current value of the impeller generator is greater than or equal to the preset current value, it is determined that the slag basket is not blocked; when the output current value of the impeller generator is less than the preset current value, it is determined that the slag basket is blocked.

[0011] As a further improvement, an anti-odor device is provided in the filter residue chamber, and the anti-odor device has an open state and a closed state. When the anti-odor device is in the closed state, it is located in the filter residue chamber and does not affect the filtration and drainage of water in the filter residue chamber. When the anti-odor device is in the open state, it is in close contact with the inner wall of the filter residue chamber on all sides, which can prevent the odor from below the anti-odor device from rising or prevent the water from below the anti-odor device from penetrating upward.

[0012] Further improvement, the anti-odor device comprises a driving motor, a screw shaft connected to the driving motor, a nut threadedly connected to the screw shaft, multiple support rods, multiple sliding rods, and an anti-odor cloth surface covering the multiple support rods; wherein one end of the multiple support rods is rotatably connected to the top of the screw shaft, one end of the multiple sliding rods is rotatably connected to the nut, and the other end of the multiple sliding rods is respectively rotatably connected to the middle part of the multiple support rods; when the driving motor is started, it drives the screw shaft to rotate, and then drives the nut matched with it to move upward along the screw shaft, drives the sliding rod to move upward, and further drives the support rods to open outward, until all the support rods are in the open state, the anti-odor device is opened; when the driving motor is started, it drives the screw shaft to rotate, and then drives the nut matched with it to move downward along the screw shaft, drives the sliding rod to move downward, and further drives the support rods to retract inward, until all the support rods are retracted, and the anti-odor device is closed.

[0013] As a further improvement, the anti-odor cloth surface is a flexible rubber cloth surface. When the anti-odor device is turned on, the four sides of the flexible rubber cloth surface are in close contact with the inner peripheral wall of the filter residue chamber.

[0014] As a further improvement, when the anti-returning odor device is opened, a sealing ring is provided at the position where the inner peripheral wall of the filter residue chamber is in close contact with the surrounding of the flexible rubber cloth surface.

[0015] As a further improvement, the driving motor is arranged on the slag basket body below the filter residue chamber, and the screw shaft is arranged in the middle position of the filter residue chamber.

[0016] Compared with the prior art, the advantages of the present invention are: by arranging a water flow velocity detection device for detecting the flow velocity of discharged washing water under the slag basket body, the water flow velocity detection device is used to detect the flow velocity of washing water discharged from the slag basket in real time, so as to judge whether the slag basket is blocked, which is simple and reliable and saves energy and reduces consumption; in the improved scheme, the water flow velocity detection device utilizes the kinetic energy and potential energy of the water flow, converts it into the rotational power of the impeller-type cutting knife, and can cut foreign matter flowing through the slag basket, thereby further preventing the slag basket from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the slag basket of a dishwasher in an embodiment of the present invention (the anti-odor device is turned on).

[0018] Figure 2Schematic diagram of the structure of the slag basket of a dishwasher in an embodiment of the present invention (intermediate state of the anti-odor device during opening).

[0019] Figure 3 Schematic diagram of the structure of the slag basket of a dishwasher in an embodiment of the present invention (the anti-odor device is closed). DETAILED DESCRIPTION

[0020] The present invention is further described in detail below with reference to the accompanying drawings.

[0021] like Figures 1 to 3 The dishwasher slag basket structure shown includes a slag basket body 1, a filter residue cavity 11 is formed above the slag basket body 1, and a supporting foot 12 is formed below the filter residue cavity 11. A water flow velocity detection device for detecting the flow velocity of washing water discharged from the filter residue cavity 11 is provided below the slag basket body 1. During the cleaning stage or drainage stage of the dishwasher, the flow velocity of washing water discharged from the filter residue cavity 11 is detected in real time by the water flow velocity detection device. According to the result output by the water flow velocity detection device, it is judged whether the slag basket is blocked: when the water flow velocity detection device outputs a water flow velocity greater than or equal to a preset value, it is judged that the slag basket is not blocked; when the result output by the water flow velocity detection device is less than the preset value, it is judged that the slag basket is blocked.

[0022] In this embodiment, the water flow velocity detection device includes an impeller shaft 21 arranged below the slag basket body, an impeller cutting blade 22 connected to the impeller shaft 21, and an impeller generator 23 connected to the impeller shaft 21. The two ends of the impeller shaft 21 are rotatably connected to the supporting pins 12, and the impeller generator 23 can be fixed on the body of the dishwasher. During the cleaning or drainage stage of the dishwasher, the washing water flowing out of the filter residue chamber 11 drives the impeller cutter 22 and the impeller shaft 21 to rotate. After the impeller shaft 21 rotates, it drives the impeller generator 23 to output a current value. According to the flow rate of the washing water, the impeller generator 23 will output current values ​​of different sizes. According to the size of the current value output by the impeller generator 23, the size of the water flow speed is judged, and then whether the residue basket is blocked is judged; when the impeller generator output current value is greater than or equal to the preset current value, it is judged that the residue basket is not blocked; when the impeller generator output current value is less than the preset current value and greater than or equal to the first preset current value, it is judged that the residue basket is slightly blocked; when the impeller generator output current value is less than the preset current value and less than the first preset current value and greater than or equal to zero, it is judged that the residue basket is seriously blocked; wherein the first preset current value is greater than 0; the preset current value is greater than the first preset current value. The above-mentioned water flow velocity detection device can also use the kinetic energy and potential energy of the water flow to convert it into the rotational power of the impeller cutter, which can cut foreign matter flowing through the residue basket to further prevent the clogging of the residue basket.

[0023] An anti-odor device is provided in the filter residue chamber 11, and the anti-odor device has an open state and a closed state. When the anti-odor device is in the closed state, it is located in the filter residue chamber 11 and does not affect the filtration and drainage of water in the filter residue chamber. When the anti-odor device is in the open state, it is in close contact with the inner wall of the filter residue chamber 11 on all sides, which can prevent the odor from below the anti-odor device from rising or prevent the water from below the anti-odor device from penetrating upward. The nut 33 is connected to the screw shaft 32 to move upward, and the sliding rod 35 is driven to move upward, thereby driving the support rod 34 to open outward. When all the support rods are in the open state, the odor-proof device 36 is opened. Figure 1 , 2 As shown; when the driving motor 31 is started, it drives the screw shaft 32 to rotate, and then drives the nut 33 matched with it to move downward along the screw shaft, drives the sliding rod 35 to move downward, and further drives the support rod 34 to retract inward, until all the support rods are retracted, and the anti-odor device is closed. The anti-odor cloth surface 36 is a flexible rubber cloth surface. When the anti-odor device is turned on, the four sides of the flexible rubber cloth surface are in close contact with the inner peripheral wall of the filter residue chamber: When the anti-odor device is turned on, the inner peripheral wall of the filter residue chamber 11 and the four sides of the flexible rubber cloth surface 36 are in close contact with each other. A sealing ring 4 is provided, Figure 3 The driving motor 31 is arranged on the slag basket body below the slag chamber 11 , and the screw shaft 32 is arranged in the middle of the slag chamber 11 .

[0024] The above-mentioned umbrella-shaped anti-odor device can effectively prevent the return of odor in the sewer. During normal drainage, the umbrella-shaped anti-odor device is in a closed state, and the water flow can quickly flow away through the slag basket; when drainage is completed and in standby mode, the umbrella-shaped anti-odor device is in an open state, and the anti-odor cloth surface 36 is in close contact with the sealing ring 4 to achieve sealing, thereby preventing odor from rising and water from returning.

Claims

1. A method for detecting blockage of a slag basket structure of a dishwasher, wherein the slag basket structure of the dishwasher comprises a slag basket body, characterized in that: A water flow velocity detection device for detecting the flow velocity of the discharged washing water is provided below the slag basket body. A filter residue cavity is formed in the slag basket body. The water flow velocity detection device is provided on the slag basket body and is located below the filter residue cavity. During the cleaning stage or the drainage stage of the dishwasher, the flow velocity of the washing water discharged from the slag basket is detected in real time by the water flow velocity detection device. According to the result output by the water flow velocity detection device, whether the slag basket is blocked is judged: when the water flow velocity detection device outputs a water flow velocity greater than or equal to a preset value, it is judged that the slag basket is not blocked; When the result output by the water flow velocity detection device is less than a preset value, it is determined that the slag basket is blocked; an anti-odor device is provided in the filter residue chamber, and the anti-odor device has an open state and a closed state. When the anti-odor device is in the closed state, it is located in the filter residue chamber and does not affect the water filtration and drainage of the filter residue chamber; when the anti-odor device is in the open state, it is in close contact with the inner peripheral wall of the filter residue chamber on all sides, which can prevent the odor under the anti-odor device from rising or prevent the water under the anti-odor device from penetrating upward; the anti-odor device includes a driving motor, a screw shaft connected to the driving motor, a nut threadedly connected to the screw shaft, multiple support rods, multiple sliding rods, and an anti-odor cloth surface covering the multiple support rods; wherein the multiple support rods One end of the rod is rotatably connected to the top of the screw shaft, one end of the multiple sliding rods is connected to the nut, and the other ends of the multiple sliding rods are respectively rotatably connected to the middle part of the multiple support rods; the driving motor is started to drive the screw shaft to rotate, and then drive the nut matched with it to move upward along the screw shaft, drive the sliding rod to move upward, and further drive the support rod to open outward, until all the support rods are in the open state, the anti-odor device is opened; when the driving motor is started to drive the screw shaft to rotate, and then drive the nut matched with it to move downward along the screw shaft, drive the sliding rod to move downward, and further drive the support rod to retract inward, until all the support rods are retracted, the anti-odor device is closed.

2. The method for detecting blockage of a dishwasher slag basket structure according to claim 1, characterized in that: The water flow velocity detection device comprises an impeller shaft arranged below the slag basket body of the dishwasher, an impeller-type cutting blade connected to the impeller shaft, and an impeller generator connected to the impeller shaft. In the cleaning stage or the drainage stage of the dishwasher, the washing water flowing out of the slag basket drives the impeller-type cutting blade and the impeller shaft to rotate. After the impeller shaft rotates, it drives the impeller generator to output a current value. According to the flow rate of the washing water, the impeller generator will output current values ​​of different magnitudes. According to the magnitude of the current value output by the impeller generator, the magnitude of the water flow velocity is judged, and then it is judged whether the slag basket is blocked. When the output current value of the impeller generator is greater than or equal to the preset current value, it is determined that the slag basket is not blocked; When the output current value of the impeller generator is less than the preset current value, it is determined that the slag basket is blocked.

3. The method for detecting blockage of a dishwasher slag basket structure according to claim 2, characterized in that: When the output current value of the impeller generator is less than the preset current value and greater than or equal to the first preset current value, the slag basket is judged to be slightly blocked; when the output current value of the impeller generator is less than the preset current value, less than the first preset current value and greater than or equal to zero, the slag basket is judged to be seriously blocked; The first preset current value is greater than 0; the preset current value is greater than the first preset current value.

4. A dishwasher slag basket structure using the blockage detection method according to claim 1, characterized in that: The slag basket body is formed with a supporting foot below the filter residue chamber, and the water flow velocity detection device includes an impeller shaft rotatably connected to the supporting foot, an impeller-type cutting blade connected to the impeller shaft, and an impeller generator connected to the impeller shaft. In the cleaning stage or drainage stage of the dishwasher, the washing water flowing out of the filter residue chamber drives the impeller-type cutting blade and the impeller shaft to rotate, and the impeller shaft rotates to drive the impeller generator to output a current value. According to the flow rate of the washing water, the impeller generator will output current values ​​of different sizes. According to the size of the current value output by the impeller generator, the size of the water flow velocity is judged, and then it is judged whether the slag basket is blocked; When the output current value of the impeller generator is greater than or equal to the preset current value, it is determined that the slag basket is not blocked; When the output current value of the impeller generator is less than the preset current value, it is determined that the slag basket is blocked.

5. The dishwasher slag basket structure according to claim 4, characterized in that: The anti-return odor cloth surface is a flexible rubber cloth surface. When the anti-return odor device is opened, the four sides of the flexible rubber cloth surface are in close contact with the inner peripheral wall of the filter residue cavity.

6. The dishwasher slag basket structure according to claim 5, characterized in that: When the anti-returning odor device is opened, a sealing ring is arranged at the position where the inner peripheral wall of the filter residue cavity is in close contact with the surrounding of the flexible rubber cloth surface.

7. The dishwasher slag basket structure according to claim 4, characterized in that: The driving motor is arranged on the slag basket body below the filter residue chamber, and the screw shaft is arranged in the middle of the filter residue chamber.

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