An anti-overflow cover assembly, a kitchen waste disposer and a control method thereof

Abstract

An anti-overflow cover assembly, a kitchen waste processor and a control method thereof, the anti-overflow cover assembly comprising an anti-overflow cover body and a filter screen, a water storage cavity being formed between the filter screen and the anti-overflow cover body, the water inlet hole on the filter screen having a larger diameter than the water outlet hole at the bottom of the water storage cavity, and the filter screen and the anti-overflow cover body being centrally provided with a through hole, the kitchen waste processor being provided with the anti-overflow cover assembly at a feeding port, a feeder being arranged above the anti-overflow cover assembly and being capable of moving up and down relative to the anti-overflow cover assembly. The water discharge speed of the water storage cavity of the anti-overflow cover assembly is smaller than the water inlet speed, the water storage cavity is beneficial to water storage, the water inlet compression of the feeder can compress the water storage cavity, the water in the water storage cavity is sprayed into a grinding cavity, and the water jet colliding with the grinding cavity or a grinding disc can play a role in cleaning and improving the grinding effect. The control method can detect the change of the metal ring position through a distance sensor, can avoid safety hazards, can intelligently control the water inlet amount, and can achieve the purpose of water saving.

Description

Technical Field

[0001] This invention relates to the field of waste treatment technology, and in particular to an overflow prevention cover assembly, a food waste disposer, and a control method thereof. Background Technology

[0002] As people's living standards improve, the demand for smart kitchens is increasing, leading to the widespread use of smart appliances such as smart rice cookers and smart dishwashers. Kitchen waste, mostly organic matter, is prone to bacterial growth, producing unpleasant odors, and its complex composition makes sorting difficult, making it a major component of household waste and thus requiring corresponding products for processing. With the implementation of waste sorting policies across various regions, sales of sorting bins and waste disposers have increased significantly, and food waste disposers are being purchased and used by more and more users. Existing food waste disposers come in various types, among which the direct-discharge type pulverizes waste and discharges it directly into the sewer, providing some convenience. However, existing direct-discharge disposers all have overflow covers on top, which only prevent water splashing and do not address the safety hazard of users putting their hands into the machine after removal. Furthermore, existing food waste disposers cannot directionally guide the water flow entering through the feeding inlet, and the grinding effect and cleaning effect of the grinding chamber need improvement. Summary of the Invention

[0003] The first technical problem to be solved by the present invention is to provide a novel anti-overflow cover assembly with a water storage chamber that facilitates water storage, in light of the existing technology described above.

[0004] The second technical problem to be solved by the present invention is to provide a food waste disposer that can improve the grinding effect by using the water flow sprayed from the water storage chamber of the overflow cover, in view of the above-mentioned existing technology.

[0005] The third technical problem to be solved by the present invention is to provide a control method for a kitchen waste disposer that is highly safe and facilitates water conservation, in light of the above-mentioned existing technology.

[0006] The technical solution adopted by the present invention to solve the first technical problem mentioned above is as follows: the overflow cover assembly includes an overflow cover body and a filter screen disposed on the top of the overflow cover body, characterized in that: a water storage cavity is formed between the filter screen and the overflow cover body, an inlet hole communicating with the water storage cavity is opened on the filter screen, an outlet hole communicating with the water storage cavity is opened at the bottom of the overflow cover body, the diameter of the inlet hole is larger than the diameter of the outlet hole, and a through hole is provided in the center of the filter screen and the overflow cover body.

[0007] Preferably, the outer peripheral wall of the overflow shield body has a downwardly inclined portion and an upper limit portion. The downwardly inclined portion is a downwardly inclined surface arranged from the bottom of the outer peripheral wall inwards. The upper limit portion is located at the top of the downwardly inclined surface. Under the pressure inside the water storage chamber, the outer peripheral wall of the overflow shield body can deform outwards, thereby reducing the inclination of the downwardly inclined surface. The outer peripheral wall of the overflow shield body adopts a thin-walled structure with a large amount of expansion and contraction deformation.

[0008] Further preferably, the lower inclined surface is provided with vertically arranged protruding ribs, the protruding ribs are arranged at intervals along the circumference of the lower inclined surface, and the cross-section of the protruding ribs is an arc-shaped structure.

[0009] The upper limit position can have various structures. Preferably, the upper limit position is an upwardly inclined surface arranged from bottom to top outward along the upper edge of the downwardly inclined part. Under the action of the pressure inside the water storage chamber, the outer peripheral wall of the overflow cover body can deform into shape, thereby reducing the inclination of the upwardly inclined surface.

[0010] For ease of installation, the bottom of the spill cover body has a lower boss extending radially outward, and the top of the spill cover body has an upper boss extending radially outward.

[0011] The water storage chamber can have various different structures. Preferably, the water storage chamber has at least three water distribution chambers arranged at intervals along the circumference, and the water outlet is located at the bottom of the water distribution chamber.

[0012] In a further preferred embodiment, the bottom of the overflow cover body has a concave structure, the filter screen has a concave structure, and correspondingly, the water storage cavity opens from the inside out.

[0013] The technical solution adopted by the present invention to solve the second technical problem mentioned above is as follows: the kitchen waste disposer includes a housing and a grinding hood installed inside the housing. A grinding disc and a motor for driving the grinding disc to rotate are installed inside the grinding hood. A feeding port is provided at the top of the grinding hood, and a discharge port is provided at the bottom of the grinding hood. The discharge port is located below the grinding disc. The invention is characterized in that: the overflow prevention hood assembly is installed at the feeding port, and a feeder is provided above the overflow prevention hood assembly. The feeder can move up and down relative to the overflow prevention hood assembly.

[0014] In a further preferred embodiment, a mounting cavity is formed between the outer peripheral wall of the overflow shield body and the grinding shield. A sensing ring is disposed within the mounting cavity and is fitted onto the lower inclined portion of the overflow shield body. A distance sensor capable of detecting the vertical position of the sensing ring is mounted on the outer wall of the grinding shield. The grinding shield has a water inlet whose water inflow is controlled by a water inlet switch. The assembly also includes a controller that receives the output signal from the distance sensor and controls the water inlet switch accordingly. In this way, the distance sensor can detect changes in the position of the metal ring, thereby controlling the water inflow through the controller, achieving water conservation.

[0015] The blanking device can have various different structures. Preferably, the feeding device includes a lower filter basket, an upper filter basket, and a lifting rod. The lifting rod passes through the upper filter basket and the lower filter basket and can be inserted downward into the through hole of the overflow prevention cover assembly. The upper filter basket is movably arranged on the lifting rod. When the lifting rod is lifted upward, it can带动 the lower filter basket to move upward synchronously.

[0016] The technical solution adopted by the present invention to solve the above third technical problem is as follows: A control method for a kitchen waste processor, characterized in that: using the kitchen waste processor as described above, the control method includes the following steps:

[0017] S1. The kitchen waste processor is powered on.

[0018] S2. The distance sensor detects whether the distance di of the induction ring exceeds the preset value dm, and judges the relationship between di and dm. If di < dm, then execute S3; if not, execute S4.

[0019] S3. It is judged that the overflow prevention cover is installed in place, there is no safety hazard, and it can be powered on normally. The motor runs at the default gear, and the water inlet switch is opened, and then execute S5.

[0020] S4. It is judged that the overflow prevention cover is not installed in place, there is a risk that the user will touch the inside of the grinding cavity with their hands, and power on is not allowed.

[0021] S5. Calculate the change rate of the induction ring distance di and compare it with the program preset values kdm1 and kdm2. Among them, kdm1 is the minimum rate for judging the user's feeding action, and kdm2 is the intermediate rate for judging the user's feeding action, and kdm1 < kdm2. If kdi < kdm1, then execute S6; if kdm1 < kdi < kdm2, then execute S7; if kdm1 < kdm2 < kdi, then execute S8.

[0022] S6. It is judged that the user is feeding, the motor runs at the default high gear, and the water inlet switch is opened.

[0023] S7. It is judged that the user is feeding, the motor runs at the default low gear, and the water inlet switch is opened.

[0024] S8. It is judged that the user is feeding and the amount of water entering the feeding port is large, the motor runs at the default low gear, and the water inlet switch is closed.

[0025] Compared with the prior art, the advantages of the present invention are as follows: a water storage chamber is formed between the filter screen and the body of the overflow cover assembly, and the diameter of the water inlet hole on the filter screen is larger than the diameter of the water outlet hole at the bottom of the water storage chamber. In this way, the drainage speed of the water storage chamber is less than the water inlet speed, which is conducive to water storage in the water storage chamber. When users put in kitchen waste, they often pull the feeder to put in water. This action can compress the water in the water storage chamber. At this time, the water in the water storage chamber is sprayed into the grinding chamber through the lower opening. The water jet collides with the grinding chamber or grinding disc, which can play a role in cleaning and improving the grinding effect. In addition, the control method can detect the change and fluctuation of the position of the metal ring through the distance sensor. It can start the machine even if the overflow cover is not installed properly to avoid safety hazards, and can also intelligently control the water volume to achieve the purpose of water conservation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the overflow shield assembly according to an embodiment of the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of the spill containment assembly from another angle is shown;

[0028] Figure 3 for Figure 1 An exploded view of the spill containment shield assembly;

[0029] Figure 4 This is a schematic diagram of the structure of a food waste disposer according to an embodiment of the present invention;

[0030] Figure 5 for Figure 4 The diagram shows an exploded view of the food waste disposer.

[0031] Figure 6 for Figure 4 The diagram shown is a schematic representation of the internal structure of a food waste disposer.

[0032] Figure 7 for Figure 4 The diagram shows a cross-sectional view of the food waste disposer (in the feeding state).

[0033] Figure 8 for Figure 4 The diagram shows a cross-sectional view of the food waste disposer (with the feeding and water inlet closed).

[0034] Figure 9 for Figure 4 The diagram shows a cross-sectional view of the food waste disposer (water jetting state inside the water storage chamber);

[0035] Figure 10 This is a schematic diagram of the control method of the food waste disposer according to an embodiment of the present invention. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] like Figures 1 to 3 As shown, the overflow shield assembly of this embodiment includes an overflow shield body 1 and a filter screen 2 disposed on the top of the overflow shield body. A water storage cavity 3 is formed between the filter screen 2 and the overflow shield body 1. The filter screen 2 has a water inlet hole 21 communicating with the water storage cavity 3. The bottom of the overflow shield body 1 has a water outlet hole 11 communicating with the water storage cavity 3. The diameter of the water inlet hole 21 is larger than the diameter of the water outlet hole 11. Typically, the diameter of the water inlet hole 21 can be 3-6 mm to prevent kitchen waste from entering the water storage cavity 3. The diameter of the water outlet hole 11 is 1-3 mm, allowing water to flow through.

[0038] In this embodiment, the filter screen 2 and the overflow cover body 1 are provided with a through hole 4 that penetrates each other in the center. The bottom of the overflow cover body 1 is concave, the filter screen 2 is concave, and correspondingly, the water storage chamber 3 opens from the inside out. In addition, in this embodiment, at least four water distribution chambers 31 are arranged circumferentially in the water storage chamber 3, and the water outlet 11 is located at the bottom of the water distribution chamber 31.

[0039] In this embodiment, the outer peripheral wall of the overflow shield body has a downwardly inclined portion 12 and an upper limit portion 13. The downwardly inclined portion 12 is a downwardly inclined surface arranged from the bottom of the outer peripheral wall inwards from bottom to top. The upper limit portion 13 is located at the top of the downwardly inclined surface and is an upwardly inclined surface arranged from the upper edge of the downwardly inclined portion 12 outwards from bottom to top. The outer peripheral wall of the overflow shield body 1 is a thin-walled structure with a large amount of expansion and contraction deformation. Under the action of the internal pressure of the water storage chamber 3, it can deform into the shape, thereby reducing the inclination of both the downwardly inclined surface and the upwardly inclined surface. In addition, vertically arranged ribs 14 are provided on the downwardly inclined surface. The ribs 14 are arranged at intervals along the circumference of the downwardly inclined surface, and the cross-section of the ribs 14 is an arc-shaped structure. The purpose of providing the ribs 14 is to reduce the frictional force of the movement of the sensing ring 102 (see below).

[0040] In addition, the bottom of the spill cover body 1 has a lower boss 15 extending radially outward, and the top of the spill cover body 1 has an upper boss 16 extending radially outward.

[0041] like Figures 4 to 6 As shown, the food waste disposer of this embodiment includes a housing 5 and a grinding shroud 6 installed inside the housing. A grinding disc 7 and a motor 8 for driving the grinding disc to rotate are installed inside the grinding shroud 6. A feeding port 61 is provided at the top of the grinding shroud 6, and a discharge port 62 is provided at the bottom of the grinding shroud 6, located below the grinding disc 7. A water inlet 63 is provided on the grinding shroud 6, and a feeder 9 is installed at the feeding port 61. The above structure is the same as that of existing food waste disposers and will not be described in detail here.

[0042] In this embodiment, the overflow cover assembly is installed on the feeding port 61, and the feeding port 61 is equipped with a connector assembly 100. The upper boss 6 of the overflow cover body 1 is upside down on the connector assembly 100. The feeder 9 is located above the overflow cover assembly and can move up and down relative to the overflow cover assembly. The feeder 9 specifically includes a lower filter basket 91, an upper filter basket 92, and a lifting rod 93. The lifting rod 93 passes through the upper filter basket 92 and the lower filter basket 91 and can be inserted downward into the through hole 4 of the overflow cover assembly. The upper filter basket 92 is movably mounted on the lifting rod 93. When the lifting rod 93 is pulled upward, it can drive the lower filter basket 91 to move upward synchronously.

[0043] In this embodiment, an installation cavity 101 is formed between the outer peripheral wall of the overflow cover body 1 and the grinding cover 6. A sensing ring 102, typically made of metal, is provided within the installation cavity 101. The sensing ring 102 is fitted onto the lower inclined portion 12 of the overflow cover body 1. A distance sensor 103, capable of detecting the vertical position of the sensing ring, is installed on the outer wall of the grinding cover 6. The distance sensor 103 can be a capacitive position sensor. The water inlet 63 is controlled by a water inlet switch (not shown in the drawings). This food waste disposer also has a controller (not shown in the drawings). The controller receives the output signal from the distance sensor 103 and controls the water inlet switch accordingly based on the received signal.

[0044] like Figure 7 As shown, this is the feeding state, where the user continuously feeds in kitchen waste through the feeder 9. Simultaneously, water flows into the water storage chamber 3 through the feeding port 61. Because the water inlet 21 at the top of the water storage chamber 3 is larger than the water outlet 11 at the bottom, the drainage speed of the water storage chamber 3 is less than the water inlet speed.

[0045] like Figure 8 As shown, the feeding and water inlet are sealed, and the water storage chamber 3 enters the water storage mode. When users put in kitchen waste, they often pull the feeder 9 to add water. This action can compress the water in the water storage chamber 3. At this time, the water in the water storage chamber 3 is sprayed into the grinding chamber 64 through the water outlet 11. The water jet collides with the grinding chamber 64 or the grinding disc 7, which can clean and improve the grinding effect.

[0046] like Figure 9 As shown, when the water in the water storage chamber 3 is compressed, the outer sensing ring 102 is squeezed and moves upward along the lower inclined surface of the sensing cover body 1. The distance sensor 103 can detect the fluctuations in the position of the sensing ring 102. The greater the upward distance of the sensing ring 102, the more water is in the water storage chamber 3, that is, the more water flows in through the feeder 9. At this time, the water inlet flow can be controlled by the controller to achieve the purpose of water conservation.

[0047] like Figure 10 As shown, the control method for the food waste disposer in this embodiment specifically includes the following steps:

[0048] S1. The food waste processor is powered on;

[0049] S2. The distance sensor 103 detects whether the distance di between the induction ring 102 exceeds the preset value dm, judges the relationship between di and dm. If di < dm, then execute S3; if not, execute S4;

[0050] S3. Judge that the anti-overflow cover is installed in place, there is no safety hazard, and it can be powered on normally. The motor 8 runs at the default gear, and the water inlet switch is opened, and then continue to execute S5;

[0051] S4. Judge that the anti-overflow cover is not installed in place, there is a risk that the user's hand touches the inside of the grinding cavity, and it is not allowed to be powered on;

[0052] S5. Calculate the change rate of the distance di of the induction ring 102 and compare it with the program preset values kdm1 and kdm2. Here, kdm1 is the minimum rate for judging the user's feeding action, and kdm2 is the intermediate rate for judging the user's feeding action, and kdm1 < kdm2. If kdi < kdm1, then execute S6; if kdm1 < kdi < kdm2, then execute S7; if kdm1 < kdm2 < kdi, then execute S8;

[0053] S6. Judge that the user is feeding, the motor 8 runs at the default high gear, and the water inlet switch is opened;

[0054] S7. Judge that the user is feeding, the motor 8 runs at the default low gear, and the water inlet switch is opened;

[0055] S8. Judge that the user is feeding, and the amount of water entering at the feeding port 61 is large. The motor 8 runs at the default low gear, and the water inlet switch is closed.

Claims

1. A food waste disposer, comprising a housing (5) and a grinding hood (6) installed inside the housing, wherein a grinding disc (7) and a motor (8) for driving the grinding disc to rotate are installed inside the grinding hood (6), a feeding port (61) is provided at the top of the grinding hood (6), and a discharge port (62) is provided at the bottom of the grinding hood (6), wherein the discharge port (62) is located below the grinding disc (7), characterized in that: An overflow shield assembly is installed at the feeding port (61), and a feeder (9) is provided above the overflow shield assembly. The feeder (9) can move up and down relative to the overflow shield assembly. The overflow shield assembly includes an overflow shield body (1) and a filter screen (2) located on the top of the overflow shield body. The overflow shield assembly is characterized in that a water storage cavity (3) is formed between the filter screen (2) and the overflow shield body (1). The filter screen (2) has a water inlet hole (21) communicating with the water storage cavity (3). The bottom of the overflow shield body (1) The filter screen (2) and the overflow cover body (1) are provided with a water outlet (11) that connects to the water storage chamber (3). The diameter of the water inlet (21) is larger than that of the water outlet (11). The filter screen (2) and the overflow cover body (1) are provided with a through hole (4) that penetrates each other. The outer peripheral wall of the overflow cover body (1) is formed with a downwardly inclined part (12) and an upper limit part (13). The downwardly inclined part (12) is a downwardly inclined surface that is arranged from the bottom of the outer peripheral wall inward from bottom to top. The upper limit part (13) is located at the top of the downwardly inclined surface. The outer peripheral wall of the overflow cover body (1) can deform under the pressure inside the water storage cavity (3) to reduce the inclination of the downward inclined surface. The downward inclined surface is provided with vertically arranged ribs (14). The ribs (14) are arranged at intervals along the circumference of the downward inclined surface, and the cross-section of the ribs (14) is an arc-shaped structure. The upper limit part (13) is an upward inclined surface that is arranged from bottom to top and outward from the upper edge of the downward inclined part (12). The outer peripheral wall of the overflow cover body (1) is inside the water storage cavity (3). Under the action of pressure, it can change shape to reduce the inclination of the upper inclined surface. The feeder (9) includes a lower filter basket (91), an upper filter basket (92) and a lifting rod (93). The lifting rod (93) passes through the upper filter basket (92) and the lower filter basket (91) and can be inserted downward into the through hole (4) of the anti-overflow cover assembly. The upper filter basket (92) is movably mounted on the lifting rod (93). When the lifting rod (93) is pulled upward, it can drive the lower filter basket (91) to move upward synchronously.

2. The food waste disposer according to claim 1, characterized in that: The bottom of the overflow cover body (1) has a lower boss (15) extending radially outward, and the top of the overflow cover body (1) has an upper boss (16) extending radially outward.

3. The food waste disposer according to claim 1, characterized in that: The water storage chamber (3) has at least three water distribution chambers (31) arranged at intervals along the circumference, and the water outlet (11) is located at the bottom of the water distribution chamber (31).

4. The food waste disposer according to claim 1, characterized in that: The bottom of the overflow cover body (1) has a concave structure, the filter screen (2) has a concave structure, and correspondingly, the water storage cavity (3) opens from the inside out.

5. The food waste disposer according to claim 1, characterized in that: An installation cavity (101) is formed between the outer peripheral wall of the anti-overflow cover body (1) and the grinding cover (6). An induction ring (102) is arranged in the installation cavity (101). The induction ring (102) is sleeved on the lower inclined part (12) of the anti-overflow cover body (1). A distance sensor (103) capable of detecting the up and down position of the induction ring is installed on the outer wall of the grinding cover (6). The grinding cover (6) is provided with a water inlet (63) whose water inflow is controlled by a water inlet switch. It further includes a controller. The controller can receive the output signal of the distance sensor (103) and correspondingly control the water inlet switch according to the received signal.

6. A control method for a food waste disposer, characterized in that: Adopt the kitchen waste processor according to claim 5. The control method includes the following steps: S1. The kitchen waste processor is powered on. S2. The distance sensor (103) detects whether the distance di between the induction ring (102) exceeds the preset value dm, and judges the relationship between di and dm. If di < dm, then execute S3; if not, execute S4. S3. Judge that the anti-overflow cover is installed in place without safety hazards and can be powered on normally. The motor (8) runs at the default gear, the water inlet switch is opened, and continue to execute S5. S4. Judge that the anti-overflow cover is not installed in place, and there is a risk that a user will touch the inside of the grinding cavity, so starting is not allowed. S5. Calculate the change rate of the distance di of the induction ring (102), and compare it with the program preset values kdm1 and kdm2. Where kdm1 is the minimum rate for judging the user's feeding action, and kdm2 is the intermediate rate for judging the user's feeding action, and kdm1 < kdm2. If kdi < kdm1, then execute S6; if kdm1 < kdi < kdm2, then execute S7; if kdm1 < kdm2 < kdi, then execute S8. S6. Judge that the user is feeding, the motor (8) runs at the default high gear, and the water inlet switch is opened. S7. Judge that the user is feeding, the motor (8) runs at the default low gear, and the water inlet switch is opened. S8. Judge that the user is feeding and the amount of water entering through the feeding port (61) is large. The motor (8) runs at the default low gear and the water inlet switch is closed.

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