Kitchen waste processor and cleaning method thereof

Abstract

The invention relates to a kitchen waste disposer and a cleaning method thereof. The kitchen waste disposer comprises a shell, and a water inlet, a feeding port and a discharging port which communicate with a smashing cavity are formed in the shell; the stirring piece is arranged in the crushing cavity; the blocking assembly is arranged at the discharging opening and can open or close the discharging opening; the water inlet pipe is connected with the water inlet of the shell and is connected with a water inlet valve capable of controlling the on-off of an internal water path of the water inlet pipe; the controller can send out a starting signal to control the blocking assembly to block the discharging opening, open the water inlet valve and start the stirring piece to work; and the detector is used for detecting the pollution condition in the crushing cavity and can trigger the controller to send out the starting signal. After garbage is treated by the kitchen garbage processor, the pollution condition in the crushing cavity is firstly judged to determine whether cleaning is needed or not, so that the situation that the crushing cavity is in a clean state is avoided, and idle work and energy waste are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of food waste treatment, and in particular to a food waste disposer and a cleaning method thereof. Background Art

[0002] A food waste disposer is a modern, environmentally friendly household appliance that is installed at the bottom of the kitchen sink and connected to the drain pipe. It uses a high-speed motor to drive the grinding assembly to grind and crush food waste, such as small pieces of pig bones, chicken bones, fish bones, egg shells, melon peels, fruit peels and cores, tea leaves, vegetable roots and leaves, coffee grounds, leftovers, soup residues, bread crumbs, etc., and crush them into powder or small particles to form a paste-like liquid, which is naturally discharged through the pipe with water. It has the beneficial effect of keeping the kitchen environment clean and reducing food waste.

[0003] In the prior art, the internal structure of the food waste disposer is relatively complex. After the food waste disposer is cleaned, food residues will still remain inside the food waste disposer, which is prone to breed bacteria and emit odor, which has an adverse effect on maintaining a clean kitchen environment and comfort of use.

[0004] In response to the above problems, the Chinese invention patent application with patent number CN202110283836.7 (publication number CN113062418A) discloses "A kitchen waste disposer, its control system and cleaning method", which includes a shell, a grinding device arranged in the shell, and a controller electrically connected to the grinding device, the grinding device includes a grinding assembly and a motor driving the grinding assembly to work, and the kitchen waste disposer also includes: a water inlet device, which includes a water inlet pipe connected to the shell, a water inlet valve arranged on the water inlet pipe, and a liquid level sensor for detecting the liquid level in the crushing chamber of the shell; a drainage device, which includes a drainage pipe connected to the shell and a drainage valve arranged on the drainage pipe; and a sensing device, which is used to detect one or more of the three signals of time signal, viscosity signal and flow rate signal of the mixed liquid in the drainage pipe, and feed back the detection signal to the controller, and the controller controls the motor to reverse according to the detection signal. This application cleans the inside of the crushing chamber by reverse water flow when the kitchen waste is processed, and has a better cleaning effect.

[0005] However, the kitchen waste disposer has the following problems: 1. In the cleaning method of the patent, there is no step to judge the pollution status of the crushing chamber. When the garbage is roughly processed, the motor directly starts to reverse to clean the crushing chamber. Because the water inlet valve is always open during the garbage processing, that is, there is always water flowing into the crushing chamber to carry the garbage out. In this process, the water flow also plays a role in cleaning the crushing chamber. Therefore, it is possible that after the garbage is processed, the crushing chamber is in a clean state and does not need to be cleaned. However, the patent will clean the crushing chamber regardless of the cleanliness of the crushing chamber, which may cause waste of resources; 2. Although the patent is provided with a detergent adding device, it cannot add a detergent of appropriate concentration according to the pollution degree of the crushing chamber, which may cause waste due to a high concentration of detergent, or may cause poor cleaning effect due to a low concentration of detergent; 3. When the motor reverses, it drives the grinding assembly to rotate in the opposite direction, and the water flow stirred by the grinding assembly washes the inner wall surface of the crushing chamber, but the grinding assembly is roughly flat, and the splashing height of the water flow stirred by it is limited, and the position far away from the grinding assembly in height may not be washed. Summary of the invention

[0006] The first technical problem to be solved by the present invention is to provide a kitchen waste disposer that first determines the contamination condition of a crushing chamber and then determines whether to clean the crushing chamber in response to the current status of the prior art.

[0007] The second technical problem to be solved by the present invention is to provide a cleaning method for the above-mentioned food waste disposer in view of the current status of the prior art.

[0008] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a kitchen waste disposer, comprising

[0009] A shell body having a crushing chamber inside, and the shell body is provided with a water inlet, a feed inlet and a discharge port which are connected with the crushing chamber;

[0010] A stirring member is provided in the grinding chamber and is used to stir the water in the grinding chamber;

[0011] A plugging component is provided at the discharge port and can open or close the discharge port;

[0012] A water inlet pipe connected to the water inlet of the shell, wherein the water inlet pipe is connected to a water inlet valve capable of controlling the on-off of the internal water channel;

[0013] A controller is electrically connected to the agitator, the blocking component and the water inlet valve, and can send a start signal to control the blocking component to block the discharge port, open the water inlet valve and start the agitator;

[0014] It is characterized by that it also includes

[0015] The detector is used to detect the contamination in the crushing chamber and can trigger the controller to send the start signal.

[0016] In order to improve the cleaning effect of the crushing chamber, the kitchen waste disposer also includes a detergent adding device, which includes a accommodating chamber for accommodating detergent and a delivery port for the detergent to flow out, the delivery port connects the accommodating chamber with the crushing chamber, and a valve that can control its opening or closing is provided at the delivery port, and the controller is electrically connected to the valve. In this way, detergent can be added to the crushing chamber, because the kitchen waste disposer usually has oil stains, and detergent has a good cleaning effect on oil stains.

[0017] The detergent dispensing device can be installed on the housing, or the detergent dispensing device includes a dishwasher and a detergent dispenser, the dishwasher has a washing cavity inside, the detergent dispenser is arranged in the washing cavity, the accommodating cavity and the dispensing port are both arranged on the detergent dispenser, the dishwasher is provided with a drain port connected to the washing cavity, and the drain port is fluidically connected to the water inlet pipe. Because a dishwasher is usually equipped with a detergent dispenser, the present application uses the dishwasher to dispense detergent into the washing cavity, and the structure is simplified.

[0018] In the above scheme, the detector is a camera arranged in the crushing chamber; or, the detector is a turbidity sensor arranged in the crushing chamber; or, a vertically extending liquid level tube is provided on the shell, the bottom of the liquid level tube is fluidically connected to the crushing chamber, and the detector is a pressure sensor arranged on the top of the liquid level tube.

[0019] The blocking component can have various structural forms, such as a solenoid valve. Preferably, the blocking component includes

[0020] A discharge pipe is located outside the pulverizing chamber and one end of which is installed at the discharge port, and a discharge hole is provided on the discharge pipe;

[0021] The moving rod is at least partially inserted in the discharge pipe and can move along the axial direction of the discharge pipe. The moving rod can move toward or away from the discharge port, and the moving rod can block the discharge port. In the process of the moving rod moving away from the discharge port, a vacuum section connected to the discharge port will be formed in the discharge pipe. In this way, the moving rod can block the discharge port. At this time, the crushing chamber is filled with water, and then the moving rod is moved away from the discharge port. Similar to the principle of vacuuming a syringe piston, a vacuum section will be formed in the discharge pipe. Under the action of the vacuum, the water in the crushing chamber is quickly sucked into the discharge pipe. In the process of water being sucked, the garbage adhering to the crushing chamber and the discharge port will be washed away by the fast-flowing water, which is helpful for cleaning the crushing chamber and has a large cleaning area for the garbage disposer.

[0022] In order to improve the reliability of forming a vacuum section in the discharge pipe during the movement of the moving rod, a sealing ring is provided between the outer peripheral wall of the moving rod and the inner wall surface of the discharge pipe.

[0023] In the above scheme, the interior of the discharge pipe is divided into a small diameter section and a large diameter section in sequence along the flow direction of the fluid, the inner diameter of the large diameter section is larger than the inner diameter of the small diameter section, a limiting surface is formed at the junction of the large diameter section and the small diameter section, the small diameter section is correspondingly connected to the discharge port, the moving rod includes a large diameter portion that can slide in the large diameter section, the sealing ring is arranged on the outer peripheral wall of the large diameter portion, the end face of the large diameter portion can be against the limiting surface, and in the process of the end face of the large diameter portion moving away from the small diameter section, the vacuum section is formed between the limiting surface and the end face of the large diameter portion.

[0024] In order to further improve the reliability of forming a vacuum section in the discharge pipe during the movement of the moving rod, the moving rod also includes a small diameter portion provided on the end surface of the large diameter portion, the outer diameter of the large diameter portion is larger than the outer diameter of the small diameter portion, wherein the small diameter portion can be inserted into the small diameter section axially movable, and a sealing member is provided between the small diameter portions. In this way, the moving rod and the discharge pipe are sealed at multiple locations, and it is easier to form a vacuum in the discharge pipe during the pulling process of the moving rod.

[0025] The sealing member may be a sealing rib arranged on the peripheral wall of the small-diameter portion, or the sealing member may be a flexible plug arranged on the free end of the small-diameter section.

[0026] In order to improve the sealing effect of the feed inlet, the plug can be inserted into the feed inlet and form a seal with the feed inlet.

[0027] The stirring member can have a variety of structural forms, such as directly using a grinding assembly. In order to increase the stirring range of the water flow, the stirring member is an impeller, and the impeller includes a vertically extending shaft and a first blade arranged on the shaft. The first blade cooperates with the shaft to form an axial flow structure that draws water from bottom to top. In this way, when the crushing chamber needs to be cleaned, the impeller rotates to transport water from bottom to top and throws it out under the centrifugal effect, which has a large transmission range for the water flow, so that a large area of ​​the wall of the crushing chamber can be washed.

[0028] Preferably, the first blade is spirally wound on the rotating shaft along the axial direction of the rotating shaft, so that the first blade cooperates with the rotating shaft to form an axial flow structure for drawing water from bottom to top, and the first blade has a simple structure.

[0029] In order to further increase the possibility of the impeller throwing the water flow onto the wall surface of the grinding chamber, the shaft is further provided with a second blade located above the first blade, and the second blade cooperates with the shaft to form a centrifugal structure for conveying the water flow radially along the shaft. The second blade receives the water transmitted by the first blade and throws it onto the wall surface of the grinding chamber by centrifugal force to wash the wall surface of the grinding chamber.

[0030] Preferably, there are a plurality of second blades which are spaced apart along the circumference of the rotating shaft, and each second blade extends radially along the rotating shaft, so that the second blades cooperate with the rotating shaft to form a centrifugal structure for conveying water radially along the rotating shaft.

[0031] Preferably, the upper edge and the lower edge of each second blade are staggered in the vertical direction, so that the second blade is arranged obliquely from top to bottom. In this way, the second blade can receive the water flow transmitted by the first blade to the maximum extent, and then throw it out obliquely upward.

[0032] The detector can trigger the controller through a mechanical component. In the present application, the detector is electrically connected to the input terminal of the controller.

[0033] The technical solution adopted by the present invention to solve the second technical problem is: a cleaning method of the above-mentioned kitchen waste disposer, characterized in that it includes the following steps:

[0034] (1) The detector detects the contamination in the crushing chamber and sends a signal to the controller, which determines whether the crushing chamber needs to be cleaned. If yes, the controller executes step (2); if no, the controller executes step (4);

[0035] (2) The controller controls the blocking component to close the discharge port, the controller controls the water inlet valve to open, and a certain amount of water is injected into the crushing chamber from the water inlet. The controller controls the stirring element to stir the water flow to flush the garbage in the crushing chamber. After the stirring element works for a set time, step (3) is executed.

[0036] (3) The stirring element stops working, the blocking component opens the discharge port, and the water flows out of the discharge port along with the washed garbage, and then the process returns to step (1);

[0037] (4) The food waste disposer is ready for use.

[0038] In order to improve the cleaning effect of the crushing chamber, the kitchen waste disposer also includes a detergent adding device, which includes a accommodating chamber for accommodating detergent and a delivery port for the detergent to flow out, the delivery port connects the accommodating chamber with the crushing chamber, and a valve that can control its opening or closing is provided at the delivery port, and the controller is electrically connected to the valve. In this way, detergent can be added to the crushing chamber, because the kitchen waste disposer usually has oil stains, and detergent has a good cleaning effect on oil stains.

[0039] One form of the detector is as follows: The detector is a camera disposed in the crushing chamber. In step (1), the method for determining whether the crushing chamber needs to be cleaned is as follows: The camera captures an image in the crushing chamber and then transmits the image to the controller. The controller performs image judgment, calculates the area of the irregular object, and calculates the difference between the area of the irregular object and a preset value. If the difference is 0, the crushing chamber does not need to be cleaned; if the difference is greater than 0, the crushing chamber needs to be cleaned.

[0040] In order to perform targeted cleaning for different pollution degrees of the crushing chamber, the controller can also determine the pollution degree of the crushing chamber. The method for determining the pollution degree of the crushing chamber is as follows:

[0041] (1) The camera captures an image of the crushing chamber in a clean state and then transmits the image to the controller. The controller performs image judgment and calculates the area of the irregular object, denoted as the preset value S1.

[0042] (2) The camera captures an image of the crushing chamber in a polluted state and then transmits the image to the controller. The controller performs image judgment and calculates the area of the irregular object, denoted as the measured value S2.

[0043] (3) Calculate the difference between S2 and S1. The difference is denoted as C. If C≥100, it indicates severe pollution and the washing chamber cannot be cleaned. The controller controls the alarm to sound an alarm. If 50<C<100, it indicates serious pollution. The controller controls the valve to open, and the detergent dosage is A1. If 20<C≤50, it indicates moderate pollution. The controller controls the valve to open, and the detergent dosage is A2. If 0<C≤20, it indicates mild pollution. The controller controls the valve to open, and the detergent dosage is A3. If C = 0, it indicates no pollution and no cleaning is required. The controller controls the valve to close. Where A1>A2>A3. In this way, if the pollution degree of the crushing chamber is large, more detergent is put; if the pollution degree of the crushing chamber is small, less detergent is put, avoiding the waste caused by a high detergent concentration or the poor cleaning effect due to a low detergent concentration and a high pollution degree.

[0044] Another form of the detector is as follows: The detector is a turbidity sensor disposed in the crushing chamber. In step (1), the method for determining whether the crushing chamber needs to be cleaned is as follows: The controller controls the plugging component to block the discharge port, controls the water inlet valve to open, injects a certain amount of water into the crushing chamber from the water inlet, then controls the stirring member to work, stirs the garbage in the crushing chamber into the water flow, and then the turbidity sensor detects the turbidity of the water flow. Calculate the difference between the measured value of the water flow turbidity detected by the turbidity sensor and the set value. If the difference is greater than 0, the crushing chamber needs to be cleaned; if the difference is 0, the crushing chamber does not need to be cleaned.

[0045] In order to clean the crushing cavity针对性地进行清洗,所述控制器还能够判断粉碎腔的污染程度,判断粉碎腔的污染程度的方法为:

[0046] (1) Detect the turbidity value of the crushing cavity in a clean state through a turbidity sensor, denoted as the set value Z2;

[0047] (2) Detect the turbidity value of the crushing cavity in a contaminated state through a turbidity sensor, denoted as the measured value Z1;

[0048] (3) Calculate the difference between Z1 and Z2, and denote the difference as Z. If Z≥2000, it indicates severe pollution and the washing cavity cannot be cleaned, and the controller controls the alarm to sound an alarm; if 1000<Z<2000, it indicates serious pollution, and the controller controls the valve to open, and the detergent dosage is A1; if 500<Z≤1000, it indicates moderate pollution, and the controller controls the valve to open, and the detergent dosage is A2; if 0<Z≤500, it indicates mild pollution, and the controller controls the valve to open, and the detergent dosage is A3; if Z = 0, it indicates no pollution and no cleaning is required, and the controller controls the valve to close; where A1>A2>A3. In this way, if the pollution degree of the crushing cavity is large, more detergent is put in, and if the pollution degree of the crushing cavity is small, less detergent is put in, avoiding the waste caused by a high detergent concentration or the poor cleaning effect caused by a low detergent concentration and a high pollution degree.

[0049] Another form of the detector is: a liquid level tube extending vertically is provided on the housing, and the bottom of the liquid level tube is in fluid communication with the crushing cavity. The detector is a pressure sensor provided at the top of the liquid level tube. In the step (1), the method for judging whether the crushing cavity needs to be cleaned is: the controller controls the plugging component to block the discharge port, the controller controls the water inlet valve to open, inject a certain amount of water into the crushing cavity from the water inlet, the pressure sensor transmits a signal to the controller and judges that after the water surface reaches the set height, the controller controls the plugging component to open the discharge port, and then detects the pressure value of the pressure sensor after the water surface level drops within the set time, calculates the difference between the measured value and the set value. If the difference is greater than 0, the crushing cavity needs to be cleaned, and if the difference is 0, the crushing cavity does not need to be cleaned.

[0050] In order to clean the crushing cavity targeted according to different pollution degrees, the controller can also judge the pollution degree of the crushing cavity. The method for judging the pollution degree of the crushing cavity is as follows: The difference between the measured value of the pressure sensor and the preset value is denoted as C. If C = 200, it indicates severe pollution and the washing cavity cannot be cleaned, and the controller controls the alarm to give an alarm; if 100 < C < 200, it indicates serious pollution, the controller controls the valve to open, and the detergent dosage is A1; if 20 < C ≤ 100, it indicates moderate pollution, the controller controls the valve to open, and the detergent dosage is A2; if 0 < C ≤ 20, it indicates mild pollution, the controller controls the valve to open, and the detergent dosage is A3; if C = 0, it indicates no pollution, and the controller controls the valve to close; where A1 > A2 > A3. In this way, if the pollution degree of the crushing cavity is large, more detergent is put; if the pollution degree of the crushing cavity is small, less detergent is put, avoiding waste caused by high detergent concentration or poor cleaning effect due to low detergent concentration and high pollution degree.

[0051] Compared with the prior art, the advantages of the present invention are as follows: By setting a detector capable of detecting the pollution situation in the crushing cavity, after the kitchen waste processor finishes processing the waste, the pollution situation in the crushing cavity is first judged to determine whether cleaning is required, thus avoiding the situation of cleaning the crushing cavity when it is in a clean state, avoiding doing useless work and wasting energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic structural diagram of the kitchen waste processor according to Embodiment 1 of the present invention;

[0053] Figure 2 is Figure 1 a sectional view of (the plug opening the discharge port);

[0054] Figure 3 is Figure 2 a schematic structural diagram of the impeller in;

[0055] Figure 4 is Figure 3 a schematic diagram of the identification parameters of;

[0056] Figure 5 is a sectional view of the plugging component (the plug closing the discharge port);

[0057] Figure 6 is Figure 5 a schematic structural diagram of the moving rod in;

[0058] Figure 7 is Figure 1 a schematic structural diagram of the cooperation between the kitchen waste processor and the dishwasher;

[0059] Figure 8 This is a schematic diagram of the process of Example 1 of the present invention;

[0060] Fig. 9 This is a schematic diagram of the process of Embodiment 2 of the present invention;

[0061] Fig.10 is a cross-sectional view of a food waste disposer according to Embodiment 3 of the present invention;

[0062] Fig.11 This is a schematic diagram of the process of Embodiment 3 of the present invention;

[0063] Fig.12 This is a working principle diagram of the detector, controller, blocking assembly, water inlet valve, and agitator. DETAILED DESCRIPTION

[0064] The present invention is further described in detail below with reference to the accompanying drawings.

[0065] Example 1

[0066] like Figures 1 to 7 As shown, the food waste disposer of this preferred embodiment includes a housing 1, an impeller 2, a blocking component 3, a detergent adding device, a detector, a controller, and the like.

[0067] like Figure 1 , 2 As shown, a crushing chamber 11 is provided inside the shell 1, and a water inlet 12, a feed port 13 and a discharge port 14 which are connected to the crushing chamber 11 are provided on the shell 1. In this embodiment, the water inlet 12 and the feed port 13 are independently arranged, and all solid materials or liquid materials in the crushing chamber 11 flow out from the discharge port 14. Of course, the water inlet 12 and the feed port 13 may also be the same, that is, water and garbage enter the crushing chamber 11 from the same port.

[0068] like Figure 2 , 3 As shown in , 4 , the impeller 2 is a stirring member for stirring the water flow in the crushing chamber 11. The impeller 2 is arranged in the crushing chamber 11. The impeller 2 includes a rotating shaft 21, a first blade 22 and a second blade 23. The rotating shaft 21 extends vertically and can rotate around its own axis. The first blade 22 and the second blade 23 are both arranged on the rotating shaft 21, and the second blade 23 is located above the first blade 22.

[0069] Preferably, the first blade 22 is spirally wound on the rotating shaft 21 along the axial direction of the rotating shaft 21 , so that the first blade 22 cooperates with the rotating shaft 21 to form an axial flow structure that draws water from bottom to top.

[0070] The diameter of the first blade 22 is between 30 mm and 40 mm. If it is less than 30 mm, the effective area of ​​the first blade 22 for transmitting water flow is small and the power is insufficient. If it is greater than 40 mm, the first blade 22 is easy to collide with the parts on the grinding disc 4. The inclination angle α of the first blade 22 is between 20° and 30°. Within this range, the first blade 22 has a high efficiency in transmitting water flow upward.

[0071] The second blades 23 have multiple pieces and are arranged at intervals along the circumference of the rotating shaft 21. It is best to have 3 to 5 second blades 23. If the number of second blades 23 is greater than 5, the exclusion coefficient of the second blades 23 will increase, and the friction loss of the second blades 23 will also increase. If the number of second blades 23 is less than 3, the overall stability of the structure formed by the second blades 23 and the rotating shaft 21 will deteriorate.

[0072] Each second blade 23 extends radially along the rotating shaft 21, so that the second blade 23 cooperates with the rotating shaft 21 to form a centrifugal structure that transports water radially along the rotating shaft 21. The upper edge and the lower edge of each second blade 23 are staggered in the vertical direction, so that the second blade 23 is tilted from top to bottom. In this way, the second blade 23 can receive the water flow transmitted by the first blade 22 to the maximum extent, and then throw it out obliquely upward. The inclination angle β of the second blade 23 is between 30° and 90°. The angles of the water flow thrown out at different inclination angles are different, resulting in different cleaning parts of the crushing chamber 11. It can be selected according to the parts that are prone to dirt. For example, the grinding disc 4 is prone to accumulate dirt, and the inclination angle can be set to be close to 90°. The blade faces the grinding disc 4, and the grinding disc 4 can be cleaned intensively.

[0073] The maximum width L between the upper edge and the lower edge of the second blade 23 is between 10 mm and 20 mm. If it is less than 10 mm, the effective area of ​​the second blade 23 is too small, the working water flow is small, and the cleaning effect is weak; if it is greater than 20 mm, the blade is too large, occupies too much space, and the volume of the crushing chamber 11 is limited.

[0074] The second blades 23 receive the water transmitted by the first blades 22 , and throw the water onto the wall surface of the grinding chamber 11 by centrifugal force, so as to wash the wall surface of the grinding chamber 11 .

[0075] A grinding disc 4 is disposed transversely in the pulverizing chamber 11. The grinding disc 4 can adopt an existing structure and will not be described in detail here. A driving mechanism 5 is disposed below the grinding disc 4. The driving mechanism 5 can be a motor. The rotating shaft 21 passes through the grinding disc 4 and is connected to the driving mechanism 5. The rotating shaft 21 is relatively fixed to the grinding disc 4. In this way, the driving mechanism 5 can simultaneously drive the grinding disc 4 and the impeller 2 to rotate. The grinding disc 4 and the impeller 2 can not only play the role of stirring the water flow, but also play the role of cutting garbage.

[0076] like Figure 2 ,5 As shown in , 6 , the blocking assembly 3 includes a discharge pipe 31 , a moving rod 32 , a plug 33 and a driving member 34 . A discharge pipe 31 is provided outside the crushing chamber 11 , one end of the discharge pipe 31 is installed at the discharge port 14 , and a discharge hole 311 is provided on the discharge pipe 31 .

[0077] The moving rod 32 is at least partially inserted in the discharge pipe 31 and can move along the axial direction of the discharge pipe 31. The moving rod 32 can move toward or away from the discharge port 14, and the moving rod 32 can block the discharge port 14. In the process of the moving rod 32 moving away from the discharge port 14, a vacuum section 35 connected to the discharge port 14 will be formed in the discharge pipe 31.

[0078] In this embodiment, the interior of the discharge pipe 31 is divided into a small diameter section 312 and a large diameter section 313 along the flow direction of the fluid. The inner diameter of the large diameter section 313 is larger than the inner diameter of the small diameter section 312. The adjacent part of the large diameter section 313 and the small diameter section 312 forms a limiting surface 314, and the small diameter section 312 is connected to the discharge port 14 accordingly.

[0079] The movable rod 32 includes a large diameter portion 321 that can slide in the large diameter section 313 and a small diameter portion 322 that can slide in the small diameter section 312. The outer diameter of the large diameter portion 321 is greater than the outer diameter of the small diameter portion 322. A sealing ring 36 is provided on the outer peripheral wall of the large diameter portion 321. The end face of the large diameter portion 321 can abut against the limiting face 314. The small diameter portion 322 is provided on the end face of the large diameter portion 321. The small diameter portion 322 can be axially moved and inserted into the small diameter section 312. A sealing member is provided between the small diameter portion 322 and the small diameter section 312. When the end face of the large diameter portion 321 moves away from the small diameter section 312, a vacuum section 35 is formed between the limiting face 314 and the end face of the large diameter portion 321.

[0080] The discharge hole 311 is provided on the peripheral wall of the discharge pipe 31 , and the movable rod 32 can move to a state where the discharge port 14 and the discharge hole 311 on the discharge pipe 31 are connected. At this time, water entering the discharge pipe 31 from the crushing chamber 11 can be discharged from the discharge pipe 31 through the discharge hole 311 .

[0081] In this embodiment, the sealing member is a flexible plug 33 disposed on the free end of the small diameter section 312, and the plug 33 can be inserted into the feed port 13 and form a seal with the feed port 13, such as Figure 5 shown.

[0082] A circle of sealing ribs 331 are arranged on the peripheral wall of the plug 33 along its circumference, and along the direction in which the plug 33 is inserted into the discharge port 14, the sealing ribs 331 are inclined toward the discharge port 14. In this way, when the moving rod 32 moves away from the discharge port 14, the sealing performance between the plug 33 and the discharge pipe 31 is better, which is conducive to forming a vacuum section 35 in the discharge pipe 31.

[0083] In order to further improve the sealing effect of the plug 33 , the sealing rib 331 has at least two circles and is arranged at intervals along the axial direction of the moving rod 32 .

[0084] In this embodiment, the driving member 34 is a motor, which is drivingly connected to the moving rod 32 . A driving rod 38 is provided on the large diameter portion 321 , and the driving rod 38 is drivingly connected to the driving member 34 .

[0085] The detergent adding device includes a accommodating chamber for accommodating detergent and a delivery port for the detergent to flow out. The delivery port connects the accommodating chamber with the crushing chamber 11 in fluid communication, and a valve that can control its opening or closing is provided at the delivery port. In this embodiment, the detergent delivery device includes a dishwasher 6 and a detergent dispenser. The dishwasher 6 has a washing chamber inside, and the detergent dispenser is arranged in the washing chamber. The accommodating chamber and the delivery port are both arranged on the detergent dispenser. The dishwasher 6 is provided with a drain port 61 connected to the washing chamber, and the drain port 61 is in fluid communication with the water inlet pipe 62. Because the dishwasher 6 is usually equipped with a detergent dispenser, the present application uses the dishwasher 6 to deliver detergent into the washing chamber, and the structure is simplified. The dishwasher 6 and the detergent dispenser thereon can both adopt existing structures, and the amount of detergent delivered can be controlled by controlling the opening degree or opening time of the valve.

[0086] The drain port 61 of the dishwasher 6 is connected to the water inlet 12 of the housing 1 through a water inlet pipe 62. The water inlet pipe 62 is connected to a water inlet valve capable of controlling the on-off of the internal water path. The water inlet valve adopts an existing structure, such as a solenoid valve.

[0087] The controller is electrically connected to the agitator, the blocking component 3 and the water inlet valve, and can send a start signal to control the blocking component 3 to block the discharge port 14, open the water inlet valve and start the agitator. The detector is used to detect the contamination in the crushing chamber 11 and can trigger the controller to send the start signal. Fig.12 shown.

[0088] The detector can trigger the controller through mechanical components. In this embodiment, the detector is electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the driving member 34 of the blocking component 3, the driving mechanism 5 of the stirring member, the water inlet valve, and the valve.

[0089] The detector is used to detect the contamination condition in the pulverizing chamber 11 so that the controller can determine whether the pulverizing chamber 11 needs to be cleaned. In this embodiment, the detector is a camera 7 disposed in the pulverizing chamber 11 .

[0090] When the crushing chamber 11 needs to be cleaned, the blocking assembly 3 blocks the discharge port 14, the water inlet valve is opened, and the agitator works. Fig. 9 As shown, the specific cleaning method of the kitchen waste disposer of this embodiment is as follows:

[0091] (1) The detector detects the contamination in the crushing chamber 11 and sends a signal to the controller, and the controller determines whether the crushing chamber 11 needs to be cleaned. If yes, step (2) is executed; if no, step (4) is executed;

[0092] (2) The controller controls the blocking component 3 to close the discharge port 14, and the controller controls the water inlet valve to open, and injects a certain amount of water into the crushing chamber 11 from the water inlet 12. The controller controls the stirring element to stir the water flow to flush the garbage in the crushing chamber 11. After the stirring element works for a set time, step (3) is executed. It should be noted that in this step, the controller controls the valve to open, and detergent will flow into the water inlet pipe 62 along with the water flow, and finally enter the washing chamber 11.

[0093] (3) The stirring element stops working, the blocking component 3 opens the discharge port 14, and the water flows out of the discharge port 14 along with the washed garbage, and then the process returns to step (1);

[0094] (4) The food waste disposer is ready for use.

[0095] In the above step (1), the method for judging whether the crushing chamber 11 needs to be cleaned is as follows: the camera 7 captures the image in the crushing chamber 11, and then transmits the image to the controller, the controller performs image judgment and calculates the area of ​​the irregular object, and then calculates the difference between the area of ​​the irregular object and the preset value. If the difference is 0, the crushing chamber 11 does not need to be cleaned; if the difference is greater than 0, the crushing chamber 11 needs to be cleaned.

[0096] Preferably, the controller can also determine the contamination degree of the crushing chamber 11. The method for determining the contamination degree of the crushing chamber 11 is:

[0097] (1) The camera 7 captures an image of the crushing chamber 11 in a clean state, and then transmits the image to the controller, which performs image judgment and calculates the area of ​​the irregular object, which is recorded as S1;

[0098] (2) The camera 7 captures an image of the crushing chamber 11 in a contaminated state, and then transmits the image to the controller, which performs image judgment and calculates the area of ​​the irregular object, which is recorded as S2;

[0099] (3) Calculate the difference between S2 and S1, and denote the difference as C. If C ≥ 100, it indicates severe pollution, and the washing chamber 11 cannot be cleaned. The controller controls the alarm to sound an alarm and contacts the manufacturer for on-site repair. If 50 < C < 100, it indicates serious pollution. The controller controls the valve to open, and the detergent dosage is A1. If 20 < C ≤ 50, it indicates moderate pollution. The controller controls the valve to open, and the detergent dosage is A2. If 0 < C ≤ 20, it indicates mild pollution. The controller controls the valve to open, and the detergent dosage is A3. If C = 0, it indicates no pollution and no cleaning is required. The controller controls the valve to close. Among them, A1 > A2 > A3. In this way, if the pollution degree of the crushing chamber 11 is relatively large, more detergent is put; if the pollution degree of the crushing chamber 11 is relatively small, less detergent is put, avoiding the waste caused by a relatively high detergent concentration or the poor cleaning effect caused by a relatively low detergent concentration and a high pollution degree.

[0100] Among them, the concentration of the detergent with the dosage of A3 in the water of the washing chamber is 0.1% - 1%, the concentration of the detergent with the dosage of A2 in the water of the washing chamber is 1% - 2%, and the concentration of the detergent with the dosage of A1 in the water of the washing chamber is 2% - 3%. For example, 1% means 10 g of detergent is dissolved in 1 L of water.

[0101] Embodiment 2

[0102] As Figure 8 、 10 shown, the difference between Embodiment 2 and Embodiment 1 is that the detector is different, and the corresponding method for detecting whether the crushing chamber 11 needs to be cleaned is also different.

[0103] The detector is a turbidity sensor arranged in the crushing chamber 11. In step (1), the method for judging whether the crushing chamber 11 needs to be cleaned is as follows: The controller controls the plugging component 3 to block the discharge port 14, the controller controls the water inlet valve to open, injects a certain amount of water into the crushing chamber 11 from the water inlet 12, then the controller controls the stirring member to work, stirs the garbage in the crushing chamber 11 into the water flow, and then the turbidity sensor detects the turbidity of the water flow. Calculate the difference between the measured value of the turbidity of the water flow detected by the turbidity sensor and the set value. If the difference is greater than 0, the crushing chamber 11 needs to be cleaned; if the difference is 0, the crushing chamber 11 does not need to be cleaned.

[0104] Preferably, the controller can also judge the pollution degree of the crushing chamber 11. The method for judging the pollution degree of the crushing chamber 11 is as follows:

[0105] (1) Detect the turbidity value of the crushing chamber 11 in the clean state through the turbidity sensor, and denote it as the set value Z2;

[0106] (2) Detect the turbidity value of the crushing chamber 11 in a contaminated state through a turbidity sensor, denoted as the measured value Z1;

[0107] (3) Calculate the difference between Z1 and Z2, and denote the difference as Z. If Z≥2000, it indicates severe pollution and cannot be solved by cleaning, and the controller controls the alarm to sound an alarm; if 1000 < Z < 2000, it indicates serious pollution, and the controller controls the valve to open, and the detergent dosage is A1; if 500 < Z ≤ 1000, it indicates moderate pollution, and the controller controls the valve to open, and the detergent dosage is A2; if 0 < Z ≤ 500, it indicates mild pollution, and the controller controls the valve to open, and the detergent dosage is A3; if Z = 0, it indicates no pollution and no cleaning is required, and the controller controls the valve to close; where A1 > A2 > A3. In this way, if the pollution degree of the crushing chamber 11 is relatively large, more detergent is put in; if the pollution degree of the crushing chamber 11 is relatively small, less detergent is put in, avoiding the waste caused by a relatively high detergent concentration or the poor cleaning effect caused by a relatively low detergent concentration and a high pollution degree.

[0108] Example 3

[0109] The difference between Example 3 and Example 1 is that the detectors are different, and the corresponding methods for detecting whether the crushing chamber 11 needs to be cleaned are also different.

[0110] As Figure 7 、 11 shown, a liquid level tube 8 extending vertically is provided on the housing 1. The bottom of the liquid level tube 8 is in fluid communication with the crushing chamber 11. The detector is a pressure sensor 81 provided at the top of the liquid level tube 8. In step (1), the method for judging whether the crushing chamber 11 needs to be cleaned is as follows: The controller controls the plugging assembly 3 to block the discharge port 14, and the controller controls the water inlet valve to open. A certain amount of water is injected into the crushing chamber 11 from the water inlet 12. After the pressure sensor 81 transmits a signal to the controller and judges that the water surface reaches the set height, the controller controls the plugging assembly 3 to open the discharge port 14, and then detects the pressure value of the pressure sensor 81 after the water surface level drops within the set time, and calculates the difference between the measured value and the set value. If the difference is greater than 0, the crushing chamber needs to be cleaned; if the difference is 0, the crushing chamber does not need to be cleaned.

[0111] In order to clean the crushing chamber 11针对性地 according to different pollution degrees, the controller can also judge the pollution degree of the crushing chamber 11. The method for judging the pollution degree of the crushing chamber 11 is as follows: The difference between the measured value of the pressure sensor 81 and the preset value is denoted as C. If C = 200, it indicates severe pollution and cannot be solved by cleaning, and the controller controls the alarm to sound an alarm; if 100 < C < 200, it indicates serious pollution, the controller controls the valve to open, and the detergent dosage is A1; if 20 < C ≤ 100, it indicates moderate pollution, the controller controls the valve to open, and the detergent dosage is A2; if 0 < C ≤ 20, it indicates mild pollution, the controller controls the valve to open, and the detergent dosage is A3; if C = 0, it indicates no pollution, and the controller controls the valve to close; where A1 > A2 > A3. In this way, if the pollution degree of the crushing chamber 11 is large, more detergent is put; if the pollution degree of the crushing chamber 11 is small, less detergent is put, avoiding the waste caused by a high detergent concentration or the poor cleaning effect due to a low detergent concentration and a high pollution degree.

[0112] In this embodiment, the pressure sensor detects once per second, and the controller calculates the C value every 1 second until the time is 0:20. The maximum value among the 20 recorded C values is used as the final judgment value for judgment to improve accuracy.

[0113]

[0114]

[0115] In the above embodiments, a certain amount of water is injected into the crushing chamber 11 from the water inlet 12. The control of the water volume can be achieved by setting a pressure sensor as in Embodiment 3, and the pressure sensor senses the liquid level height in the crushing chamber to control the water volume.

[0116] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the disclosed embodiments of the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity.

[0117] The "fluid connection" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A food waste disposer, comprising A shell (1) having a crushing chamber (11) therein, wherein the shell (1) is provided with a water inlet (12), a feed inlet (13) and a discharge port (14) which are connected to the crushing chamber (11); A stirring member, disposed in the pulverizing chamber (11), and used for stirring water in the pulverizing chamber (11); A blocking component (3) is disposed at the discharge port (14) and is capable of opening or closing the discharge port (14); A water inlet pipe (62) connected to the water inlet (12) of the housing (1), wherein the water inlet pipe (62) is connected to a water inlet valve capable of controlling the on-off of an internal water channel; a controller, which is electrically connected to the agitator, the blocking component (3) and the water inlet valve, and is capable of sending a start signal to control the blocking component (3) to block the discharge port (14), open the water inlet valve and start the operation of the agitator; It is characterized in that Also includes The detector is used to detect the contamination condition in the crushing chamber (11) and can trigger the controller to send the start signal.

2. The food waste disposer according to claim 1, characterized in that: It also includes a detergent adding device, which includes a accommodating chamber for accommodating detergent and a delivery port for the detergent to flow out, the delivery port connects the accommodating chamber with the pulverizing chamber (11) in fluid communication, a valve capable of controlling its opening or closing is provided at the delivery port, and the controller is electrically connected to the valve.

3. The kitchen waste disposer according to claim 2, characterized in that: The detergent dispensing device comprises a dishwasher (6) and a detergent dispenser, wherein the dishwasher (6) has a washing chamber inside, the detergent dispenser is arranged in the washing chamber, the accommodating chamber and the dispensing port are both arranged on the detergent dispenser, and the dishwasher (6) is provided with a drain port (61) connected to the washing chamber, and the drain port (61) is in fluid communication with a water inlet pipe (62).

4. The food waste disposer according to claim 1, characterized in that: The detector is a camera (7) arranged in the pulverizing chamber (11); or, the detector is a turbidity sensor arranged in the pulverizing chamber (11); or, a liquid level tube (8) extending vertically is provided on the housing (1), the bottom of the liquid level tube (8) is in fluid communication with the pulverizing chamber (11), and the detector is a pressure sensor (81) arranged at the top of the liquid level tube (8).

5. The food waste disposer according to any one of claims 1 to 4, characterized in that: The blocking component (3) comprises A discharge pipe (31), located outside the pulverizing chamber (11) and having one end mounted at the discharge port (14), wherein a discharge hole (311) is provided on the discharge pipe (31); A moving rod (32) is at least partially inserted into the discharge pipe (31) and can move along the axial direction of the discharge pipe (31). The moving rod (32) can move toward or away from the discharge port (14), and the moving rod (32) can block the discharge port (14). When the moving rod (32) moves away from the discharge port (14), a vacuum section (35) connected to the discharge port (14) is formed in the discharge pipe (31).

6. The food waste disposer according to claim 5, characterized in that: A sealing ring (36) is provided between the outer peripheral wall of the moving rod (32) and the inner wall surface of the discharge pipe (31).

7. The food waste disposer according to claim 6, characterized in that: The inside of the discharge pipe (31) is divided into a small diameter section (312) and a large diameter section (313) in sequence along the flow direction of the fluid. The inner diameter of the large diameter section (313) is larger than the inner diameter of the small diameter section (312). A limiting surface (314) is formed at the junction of the large diameter section (313) and the small diameter section (312). The small diameter section (312) is correspondingly connected to the discharge port (14). The moving rod (32) includes a large diameter portion (321) that can slide in the large diameter section (313). The sealing ring (36) is arranged on the outer peripheral wall of the large diameter portion (321). The end surface of the large diameter portion (321) can abut against the limiting surface (314). When the end surface of the large diameter portion (321) moves away from the small diameter section (312), the vacuum section (35) is formed between the limiting surface (314) and the end surface of the large diameter portion (321).

8. The food waste disposer according to claim 7, characterized in that: The moving rod (32) further comprises a small diameter portion (322) arranged on the end surface of the large diameter portion (321), wherein the outer diameter of the large diameter portion (321) is greater than the outer diameter of the small diameter portion (322), wherein the small diameter portion (322) is inserted into the small diameter section (312) so as to be axially movable, and a sealing member is arranged between the small diameter portion (322) and the small diameter section (312).

9. The food waste disposer according to claim 8, characterized in that: The sealing member is a flexible plug (33) arranged on the free end of the small diameter section (312).

10. The food waste disposer according to claim 9, characterized in that: The plug (33) can be inserted into the feed port (13) and form a seal with the feed port (13).

11. The food waste disposer according to any one of claims 1 to 4, characterized in that: The stirring member is an impeller (2), and the impeller (2) comprises a vertically extending rotating shaft (21) and a first blade (22) arranged on the rotating shaft (21), wherein the first blade (22) cooperates with the rotating shaft (21) to form an axial flow structure for drawing water from bottom to top.

12. The food waste disposer according to claim 11, characterized in that: The first blade (22) is spirally wound around the rotating shaft (21) along the axial direction of the rotating shaft (21), so that the first blade (22) cooperates with the rotating shaft (21) to form an axial flow structure that draws water from bottom to top.

13. The food waste disposer according to claim 11, characterized in that: The rotating shaft (21) is also provided with a second blade (23) located above the first blade (22); the second blade (23) cooperates with the rotating shaft (21) to form a centrifugal structure for conveying water radially along the rotating shaft (21).

14. The food waste disposer according to claim 13, characterized in that: The second blades (23) are provided in plurality and are arranged at intervals along the circumference of the rotating shaft (21); each second blade (23) extends radially along the rotating shaft (21), so that the second blades (23) cooperate with the rotating shaft (21) to form a centrifugal structure for conveying water radially along the rotating shaft (21).

15. The food waste disposer according to claim 14, characterized in that: The upper edge and the lower edge of each second blade (23) are staggered in the vertical direction, so that the second blade (23) is arranged tilted from top to bottom.

16. The food waste disposer according to claim 1, characterized in that: The detector is electrically connected to the controller.

17. A method for cleaning a food waste disposer according to claim 16, characterized in that: The steps include: (1) The detector detects the contamination in the crushing chamber (11) and sends a signal to the controller, and the controller determines whether the crushing chamber (11) needs to be cleaned. If yes, the controller executes step (2); if no, the controller executes step (4); (2) The controller controls the plugging component (3) to close the discharge port (14), controls the water inlet valve to open, injects a certain amount of water into the crushing chamber (11) from the water inlet (12), controls the stirring member to work to stir the water flow to wash the garbage in the crushing chamber (11), and after the working time of the stirring member reaches the set value, step (3) is executed; (3) The stirring member stops working, the plugging component (3) opens the discharge port (14), the water carries the washed-down garbage and flows out from the discharge port (14), and then returns to step (1); (4) The food waste processor waits for use.

18. The method for cleaning a food waste disposer according to claim 17, characterized in that: The food waste processor further includes a detergent adding device, the detergent adding device includes a containing cavity for containing detergent and a discharging port for the detergent to flow out, the discharging port fluidly connects the containing cavity with the crushing chamber (11), and a valve capable of controlling its opening or closing is provided at the discharging port. In step (2), the valve opens to discharge detergent into the crushing chamber (11).

19. The method for cleaning a food waste disposer according to claim 18, characterized in that: The detector is a camera (7) arranged in the crushing chamber (11). In step (1), the method for judging whether the crushing chamber (11) needs to be cleaned is as follows: The camera (7) takes an image in the crushing chamber (11), then transmits the image to the controller, the controller performs image judgment and calculates the area of the irregular object, and calculates the difference between the area of the irregular object and the preset value. If the difference is 0, the crushing chamber (11) does not need to be cleaned; if the difference is greater than 0, the crushing chamber (11) needs to be cleaned.

20. The method for cleaning a food waste disposer according to claim 19, characterized in that: The controller can also judge the pollution degree of the crushing chamber (11), and the method for judging the pollution degree of the crushing chamber (11) is as follows: (1) The camera (7) takes an image of the crushing chamber (11) in a clean state, then transmits the image to the controller, the controller performs image judgment and calculates the area of the irregular object, denoted as S1; (2) The camera (7) takes an image of the crushing chamber (11) in a polluted state, then transmits the image to the controller, the controller performs image judgment and calculates the area of the irregular object, denoted as S2; (3) Calculate the difference between S2 and S1, and denote the difference as C. If C≥100, it means severe pollution and cannot be solved by cleaning, and the controller controls the alarm to sound; if 50<C<100, it means serious pollution, the controller controls the valve to open, and the detergent discharge amount is A1; if 20<C≤50, it means moderate pollution, the controller controls the valve to open, and the detergent discharge amount is A2; if 0<C≤20, it means mild pollution, the controller controls the valve to open, and the detergent discharge amount is A3; if C = 0, it means no pollution and no cleaning is required, and the controller controls the valve to close; where A1>A2>A3.

21. The method for cleaning a food waste disposer according to claim 18, characterized in that: The detector is a turbidity sensor disposed in the crushing chamber (11). In the step (1), the method for judging whether the crushing chamber (11) needs to be cleaned is as follows: The controller controls the blocking component (3) to block the discharge port (14), the controller controls the water inlet valve to open, and a certain amount of water is injected into the crushing chamber (11) from the water inlet (12). Then the controller controls the stirring member to work, stir the garbage in the crushing chamber (11) into the water flow, and then the turbidity sensor detects the turbidity of the water flow, calculates the difference between the measured value of the turbidity of the water flow detected by the turbidity sensor and the set value. If the difference is greater than 0, the crushing chamber needs to be cleaned. If the difference is 0, the crushing chamber does not need to be cleaned.

22. The method for cleaning a food waste disposer according to claim 21, characterized in that: The controller can also judge the pollution degree of the crushing chamber (11). The method for judging the pollution degree of the crushing chamber (11) is as follows: (1) Detect the turbidity value of the crushing chamber (11) in a clean state through the turbidity sensor, and record it as the preset value Z2; (2) Detect the turbidity value of the crushing chamber (11) in a polluted state through the turbidity sensor, and record it as the measured value Z1; (3) Calculate the difference between Z1 and Z2, and record the difference as Z. If Z≥2000, it means severe pollution and cannot be solved by cleaning, and the controller controls the alarm to sound an alarm; if 1000<Z<2000, it means serious pollution, the controller controls the valve to open, and the detergent dosage is A1; if 500<Z≤1000, it means moderate pollution, the controller controls the valve to open, and the detergent dosage is A2; if 0<Z≤500, it means mild pollution, the controller controls the valve to open, and the detergent dosage is A3; if Z = 0, it means no pollution and no cleaning is required, and the controller controls the valve to close; where A1>A2>A3.

23. The method for cleaning a food waste disposer according to claim 18, characterized in that: A vertical liquid level tube (8) is provided on the housing (1). The bottom of the liquid level tube (8) is in fluid communication with the crushing chamber (11). The detector is a pressure sensor (81) disposed at the top of the liquid level tube (8). In the step (1), the method for judging whether the crushing chamber (11) needs to be cleaned is as follows: The controller controls the blocking component (3) to block the discharge port (14), the controller controls the water inlet valve to open, and a certain amount of water is injected into the crushing chamber (11) from the water inlet (12). After the pressure sensor (81) transmits a signal to the controller and judges that the water surface reaches the set height, the controller controls the blocking component (3) to open the discharge port (14). Then, detect the pressure value of the pressure sensor (81) after the water surface level drops within the set time, calculate the difference between the measured value and the set value. If the difference is greater than 0, the crushing chamber needs to be cleaned. If the difference is 0, the crushing chamber does not need to be cleaned.

24. The method for cleaning a food waste disposer according to claim 23, characterized in that: The controller can also judge the pollution degree of the crushing chamber (11). The method for judging the pollution degree of the crushing chamber (11) is as follows: The difference between the measured value of the pressure sensor (81) and the preset value is denoted as C. If C = 200, it indicates severe pollution and cannot be solved by cleaning, and the controller controls the alarm to give an alarm; if 100 < C < 200, it indicates serious pollution, the controller controls the valve to open, and the detergent dosage is A1; if 20 < C ≤ 100, it indicates moderate pollution, the controller controls the valve to open, and the detergent dosage is A2; if 0 < C ≤ 20, it indicates mild pollution, the controller controls the valve to open, and the detergent dosage is A3; if C = 0, it indicates no pollution, and the controller controls the valve to close; where A1 > A2 > A3.

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