Drainage assembly for kitchen waste processor and kitchen waste processor

Abstract

The utility model relates to a water drainage assembly for a kitchen waste processor and the kitchen waste processor, and the water drainage assembly comprises a water drainage elbow and a water drainage pipe, the drainage elbow pipe is provided with a transverse section which extends outwards relative to a discharge hole in the side wall of the kitchen waste processor, an arc-shaped section which is gradually bent downwards from the outer end of the transverse section, and a vertical section which extends downwards from the lower end of the arc-shaped section; a first connecting pipe extending vertically upwards or obliquely upwards is connected to the arc-shaped section of the drainage bent pipe, an opening in the lower end of the first connecting pipe is formed in the pipe wall of the arc-shaped section and faces the vertical section of the drainage bent pipe, and external drained water enters the upper end of the first connecting pipe. Compared with the prior art, the drainage device is beneficial to drainage.

Description

Technical Field

[0001] The utility model belongs to the technical field of garbage disposal, and in particular relates to a drainage component for a kitchen waste disposer and a kitchen waste disposer. Background Art

[0002] The general structure of existing food waste disposers is similar, including a casing with a feed port and a discharge port, a crushing element arranged in the casing, and a driving mechanism for driving the crushing element to work. The crushing element can crush the food waste entering from the feed port under the drive of the driving mechanism, and the crushed waste passes through the discharge port of the casing together with the water flow and enters the drainage pipe for discharge.

[0003] Currently, the food waste disposers on the market are used together with household appliances such as dishwashers and water purifiers. For example, the overflow and forced discharge outlet of the dishwasher are connected to the drainage pipe of the garbage disposer. Specifically, the Chinese utility model patent "A water inlet system for a food waste disposer" with patent number 202320440031.3 and authorization announcement number CN219863142U includes a sink and a garbage disposer installed at the bottom of the sink, the feeding port of the garbage disposer is connected to the drain outlet at the bottom of the sink, the discharge port of the garbage disposer is externally connected to a drain pipe, and a water inlet assembly and a water inlet valve are installed on the outside of the sink. The water inlet assembly has a water inlet, a water outlet, an overflow and a drain, the outlet of the water inlet valve is connected to the water inlet through the water inlet pipe, the water inlet is connected to the inside of the sink through the water outlet, the inside of the sink is connected to the drain outlet through the overflow, and the drain outlet is connected to the drain pipe through the overflow pipe.

[0004] When household appliances and food waste disposers share a drainage pipe, the following technical problems exist:

[0005] 1. The drainage of household appliances and the drainage of food waste disposers will interfere with each other;

[0006] 2. Due to the high drainage pressure of the food waste disposer, there is a situation where the water discharged from the food waste disposer flows back into household appliances such as dishwashers and water purifiers. Utility Model Content

[0007] The first technical problem to be solved by the utility model is to provide a drainage component for a kitchen waste disposer which is conducive to drainage in view of the current status of the prior art.

[0008] The second technical problem to be solved by the present invention is to provide a kitchen waste disposer having the above-mentioned drainage component.

[0009] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is: a drainage component for a kitchen waste disposer, comprising:

[0010] A drainage elbow, along the flow direction of the water flow, the drainage elbow having a transverse section extending outward relative to the discharge port on the side wall of the food waste disposer, an arc section gradually bending downward from the outer end of the transverse section, and a vertical section extending downward from the lower end of the arc section;

[0011] Features:

[0012] The arc section of the drainage elbow is connected to a first connecting pipe extending vertically upward or obliquely upward, the lower end of the first connecting pipe opens on the pipe wall of the arc section and faces the vertical section of the drainage elbow, and the upper end of the first connecting pipe is for external drainage to enter.

[0013] By providing a first pipe extending upward on the arc section of the drainage elbow, the lower end of the first pipe opens to the pipe wall of the arc section and faces the vertical section of the drainage elbow, and the upper end of the first pipe is for external drainage to enter, so that the drainage through the first pipe can be directly discharged to the vertical section of the drainage elbow, avoiding interference with the water flow entering from the horizontal section of the drainage elbow after being processed by the garbage disposer, and at the same time can flush the inner wall of the drainage elbow, reducing the risk of the processed garbage adhering to the inner wall of the drainage elbow. In addition, since the lower end of the first pipe in the utility model opens to the pipe wall of the arc section and faces the vertical section of the drainage elbow, the risk of the water flow entering from the horizontal section of the drainage elbow after being processed by the garbage disposer backflowing into the first pipe can be reduced.

[0014] In order to further prevent water from flowing back into the first connecting pipe, preferably, a first one-way valve is further included, which is arranged at the lower end of the first connecting pipe or a position adjacent to the lower end to cut off the passage between the first connecting pipe and the drainage elbow, and the first one-way valve is arranged to be opened under the action of drainage flowing downward in the first connecting pipe. In this way, the first one-way valve can prevent water from flowing back into the first connecting pipe from the garbage disposal, and does not affect the outflow of drainage in the first connecting pipe.

[0015] Preferably, the first one-way valve includes an elastic first valve plate, an edge portion on one side of the first valve plate is fixed relative to the first connecting pipe, the main body of the first valve plate is horizontally blocked in the first connecting pipe, and can rotate relative to the edge portion under the action of downward drainage to connect the passage between the first connecting pipe and the drainage elbow.

[0016] Preferably, the first connecting pipe is connected to a second connecting pipe, the output end of the second connecting pipe opens to the pipe wall of the first connecting pipe and is located below or above the first one-way valve, and the input end of the second connecting pipe is for external drainage to enter.

[0017] Furthermore, the first connecting pipe and the second connecting pipe are arranged at an angle.

[0018] Furthermore, the upper end of the first connecting pipe is used to be connected to the overflow pipe of the dishwasher; and the input end of the second connecting pipe is used to be connected to the forced exhaust pipe of the dishwasher.

[0019] In the above solution, preferably, the first connecting pipe extends from bottom to top in an inclined manner away from the transverse section of the drainage elbow. In this way, the direction of the lower end opening of the first connecting pipe forms an angle with the extension direction of the vertical section. When the garbage disposer is in operation, the arc section of the drainage elbow is prone to accumulate garbage. The inclined setting of the first connecting pipe in the utility model is conducive to drainage output, and the output drainage can flush the garbage in the arc section.

[0020] Preferably, a third connecting pipe is connected to the vertical section of the drainage elbow, the output end of the third connecting pipe opens to the pipe wall of the vertical section, and the input end of the third connecting pipe is for external drainage to enter.

[0021] Furthermore, the third connecting pipe extends obliquely from bottom to top in a posture away from the vertical section, the upper end of the third connecting pipe is its input end, and the lower end of the third connecting pipe is its output end.

[0022] Furthermore, a fourth connecting pipe is connected to the vertical section of the drainage elbow, the output end of the fourth connecting pipe opens to the pipe wall of the vertical section, and the input end of the fourth connecting pipe is for external drainage to enter.

[0023] Furthermore, the output end opening of the fourth connecting pipe is arranged opposite to the output end opening of the third connecting pipe on both sides of the vertical section.

[0024] Furthermore, the upper end of the first pipe is used to connect to the overflow pipe of the dishwasher; the input end of the third pipe is used to connect to the forced drainage pipe of the dishwasher; the input end of the fourth pipe is used to connect to the waste water pipe of the water purifier. In this way, the drainage of each household appliance can be discharged through the drainage assembly of the utility model, and each drainage will not affect the discharge of the water flow in the garbage disposer.

[0025] In the above scheme, preferably, a partition is also included, which is vertically arranged in the arc section of the drainage bend pipe to divide the space in the arc section into two parts, the first part corresponds to the lower end of the first connecting pipe to connect the first connecting pipe with the vertical section of the drainage bend pipe, and the second part connects the horizontal section and the vertical section of the drainage bend pipe.

[0026] The setting of the partition can further prevent the drainage of the first connecting pipe from interfering with the water flow entering from the transverse section of the drainage elbow after being processed by the garbage disposer; and can further prevent the water flow entering from the transverse section of the drainage elbow from flowing back into the first connecting pipe. At the same time, when the garbage disposer is running, the arc section of its drainage elbow is prone to accumulate garbage. If a first one-way valve is provided at the lower end of the first connecting pipe or at a position adjacent to the lower end, the accumulated garbage will affect the normal opening and closing of the first one-way valve. At this time, the setting of the partition in the utility model can prevent garbage from entering the lower end of the first connecting pipe, thereby ensuring that the first one-way valve can be opened and closed normally.

[0027] In the above schemes, preferably, a second one-way valve is further included, which is arranged at the water inlet of the transverse section of the drainage elbow to close the water inlet, and the second one-way valve is arranged to be opened under the action of the water flow. In this way, when the food waste disposer is not working, that is, there is no fluid inside it, the second one-way valve closes the water inlet, thereby preventing the odor in the sewer pipe and the drainage component from entering the waste disposer. When the food waste disposer is working, the second one-way valve opens under the action of the water flow in the food waste disposer to perform normal drainage work.

[0028] Preferably, the second one-way valve comprises a second valve plate, which is arranged horizontally at the water inlet of the transverse section of the drainage elbow and can rotate under the action of the water flow to open the water inlet.

[0029] Furthermore, the rotation axis of the second valve plate is adjacent to the upper edge of the second valve plate, at least the lower portion of the second valve plate is provided with a counterweight block, and under the action of the gravity of the counterweight block, the second valve plate always has a tendency to rotate downward to close the water inlet.

[0030] In the above schemes, preferably, the lower end of the vertical section of the drainage elbow is connected to a corrugated pipe to connect to the sewer pipe of the user's home.

[0031] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: a kitchen waste disposer, characterized by having the drainage component as described above.

[0032] Preferably, the food waste disposer also includes:

[0033] A crushing cover, which has a crushing chamber inside, a feed inlet and a water inlet are arranged at the upper part of the crushing chamber, and the side wall at the lower part of the crushing chamber is provided with the above-mentioned discharge port;

[0034] A crushing element is arranged in the crushing chamber and is used to crush the garbage entering from the feed inlet;

[0035] A driving mechanism, the output end of which acts on the crushing member to drive the crushing member to rotate;

[0036] The second valve plate is arranged to be able to overcome the gravity of the counterweight block and rotate upward to open the discharge port under the action of the fluid disturbed by the crushing element in the crushing chamber.

[0037] In the natural state, the second valve plate rotates downward under the gravity of the counterweight and blocks the discharge port horizontally. At this time, the water flow entering from the water inlet accumulates in the crushing chamber (that is, the water inlet speed is greater than the water discharge speed). Then the driving mechanism works to drive the crushing parts to rotate. The rotating crushing parts can disturb the fluid in the crushing chamber to rotate together, thereby flushing the inner wall of the crushing chamber to achieve self-cleaning. At the same time, the rotating fluid can apply a pressure to the second valve plate, so that the second valve plate overcomes the gravity of the counterweight and rotates upward to open the discharge port, so that the fluid is discharged from the discharge port together with the cleaned residue. Therefore, the utility model can realize the self-cleaning of the kitchen waste disposer by controlling the operation of the driving mechanism and the water inlet of the water inlet, and the structure is relatively simple.

[0038] Compared with the prior art, the advantages of the present invention are: by providing a first pipe extending upward on the arc section of the drainage elbow, the lower end of the first pipe opens to the pipe wall of the arc section and faces the vertical section of the drainage elbow, and the upper end of the first pipe is for external drainage to enter, so that the drainage through the first pipe can be directly discharged to the vertical section of the drainage elbow, avoiding interference with the water flow entering from the horizontal section of the drainage elbow after being processed by the garbage disposer, and at the same time can flush the inner wall of the drainage elbow, reducing the risk of the processed garbage adhering to the inner wall of the drainage elbow. In addition, since the lower end of the first pipe in the present invention opens to the pipe wall of the arc section and faces the vertical section of the drainage elbow, the risk of the water flow entering from the horizontal section of the drainage elbow after being processed by the garbage disposer backflowing into the first pipe can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of the structure of a kitchen waste disposer according to Embodiment 1 of the present utility model;

[0040] Figure 2 It is a cross-sectional view of the kitchen waste disposer according to the first embodiment of the utility model;

[0041] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0042] Figure 4 This is a structural schematic diagram of a kitchen waste disposer according to Embodiment 2 of the present utility model;

[0043] Figure 5 It is a cross-sectional view of the drainage assembly of the second embodiment of the utility model;

[0044] Figure 6 This is a schematic diagram of the structure of the drainage assembly of the third embodiment of the present utility model;

[0045] Figure 7 It is a cross-sectional view of the drainage assembly of the third embodiment of the utility model;

[0046] Figure 8 This is a schematic diagram of the structure of the drainage assembly of the fourth embodiment of the utility model;

[0047] Fig. 9 It is a cross-sectional view of the drainage component of the fourth embodiment of the present utility model. DETAILED DESCRIPTION

[0048] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0049] Embodiment 1:

[0050] like Figures 1 to 3 As shown, a drainage component for a food waste disposer and a preferred embodiment of the food waste disposer of the present invention are shown, and the food waste disposer includes a crushing cover 1, a crushing part 2, a driving mechanism 200 and a drainage component.

[0051] The pulverizing cover 1 has a pulverizing chamber 10 therein, the upper portion of the pulverizing chamber 10 is provided with a feed inlet 10a and a water inlet 10c, and the lower portion of the pulverizing chamber 10 is provided with a discharge port 10b on a side wall thereof.

[0052] The crushing element 2 is arranged in the crushing chamber 10, and is used to crush the garbage entering from the feed port 10a. The output end of the driving mechanism 200 acts on the crushing element 2, and is used to drive the crushing element 2 to rotate. In this embodiment, the crushing element 2 and the driving mechanism 200 can be designed with reference to the prior art, and will not be described in detail here.

[0053] The drainage assembly includes a drainage elbow 8 , a first one-way valve 84 , a second one-way valve 86 and a partition 85 .

[0054] Among them, along the flow direction of water flow, the drainage elbow 8 has a transverse section 81 extending horizontally outward relative to the discharge port 10b on the side wall of the food waste disposer, an arc section 82 gradually bending downward from the outer end of the transverse section 81, and a vertical section 83 extending vertically downward from the lower end of the arc section 82. The lower end of the vertical section 83 is connected with a corrugated pipe to connect to the sewer pipe of the user's home. The arc section 82 is connected with a first pipe 821 extending obliquely upward. The first pipe 821 extends obliquely from bottom to top in a posture away from the transverse section 81 of the drainage elbow 8. The upper end of the first pipe 821 is used to connect to the overflow pipe of the dishwasher to allow overflow water in the dishwasher to enter. The lower end of the first pipe 821 opens on the pipe wall of the arc section 82 and faces the vertical section 83 of the drainage elbow 8. The vertical section 83 is connected to a third pipe 831, which extends obliquely from bottom to top in a posture away from the vertical section 83. The upper end of the third pipe 831 is used to connect to the strong drain pipe of the dishwasher for the drainage of the dishwasher to enter, and the lower end of the third pipe 831 opens to the pipe wall of the vertical section 83. The vertical section 83 is also connected to a fourth pipe 832, the input end of the fourth pipe 832 is used to connect to the waste water pipe of the water purifier for the drainage of the water purifier to enter, and the output end of the fourth pipe 832 opens to the pipe wall of the vertical section 83 and is opposite to the lower end opening of the third pipe 831.

[0055] The first one-way valve 84 is arranged at the lower end of the first connecting pipe 821 or at a position adjacent to the lower end to cut off the passage between the first connecting pipe 821 and the drain elbow 8, and the first one-way valve 84 is arranged to be opened under the action of the drainage flowing downward in the first connecting pipe 821. Specifically, the first one-way valve 84 includes a first valve plate with elasticity, an edge portion of one side of the first valve plate is fixed relative to the first connecting pipe 821, and a main body portion of the first valve plate is horizontally blocked in the first connecting pipe 821, and can rotate relative to the edge portion under the action of the drainage flowing downward to connect the passage between the first connecting pipe 821 and the drain elbow 8.

[0056] The partition plate 85 is vertically arranged in the arc section 82 of the drainage bend 8 to divide the space in the arc section 82 into two parts. The first part corresponds to the lower end of the first connecting pipe 821 to connect the first connecting pipe 821 with the vertical section 83 of the drainage bend 8, and the second part connects the transverse section 81 and the vertical section 83 of the drainage bend 8.

[0057] The second one-way valve 86 is arranged at the water inlet of the transverse section 81 of the drainage elbow 8 to close the water inlet, and the second one-way valve 86 is arranged to be opened under the action of water flow. Specifically, the second one-way valve 86 includes a second valve plate 861, which is rotatably arranged at the water inlet of the transverse section 81 of the drainage elbow 8, and the rotation axis of the second valve plate 86 is adjacent to the upper edge of the second valve plate 861, and at least the lower part of the second valve plate 861 is provided with a counterweight block 862, and the second valve plate 861 always has a tendency to rotate downward and block the water inlet under the gravity of the counterweight block 862. At the same time, the second valve plate 861 is arranged to overcome the gravity of the counterweight block 862 and rotate upward to open the water inlet under the action of the fluid disturbed by the crushing element 2 in the crushing chamber 10.

[0058] In the natural state, the second valve plate 861 rotates downward under the action of the gravity of the counterweight block 862 and horizontally blocks the discharge port 10b. At this time, the water flow entering from the water inlet 10c accumulates in the grinding chamber 10 (that is, the water inlet speed is greater than the water discharge speed). Then the driving mechanism 200 works to drive the grinding component 2 to rotate. The rotating grinding component 2 can disturb the fluid in the grinding chamber 10 to rotate together, thereby realizing the flushing of the inner wall of the grinding chamber 10 to achieve self-cleaning. At the same time, the rotating fluid can apply a pressure to the second valve plate 861, so that the second valve plate 861 overcomes the gravity of the counterweight block 862 and rotates upward to open the discharge port 10b, so that the fluid enters the drainage elbow 8 from the discharge port with the cleaned residue, and passes through the horizontal section 81, arc section 82, and vertical section 83 of the drainage elbow 8 in turn and is discharged into the sewer pipe.

[0059] The overflow water and the strong drainage in the dishwasher enter the drainage elbow 8 through the first connecting pipe 821 and the third connecting pipe 831 respectively, and finally are discharged into the sewer pipe.

[0060] The waste water in the water purifier enters the drain elbow 8 through the fourth connecting pipe 832 and is finally discharged into the sewer pipe.

[0061] Embodiment 2:

[0062] like Figure 4 , 5 As shown, a drainage assembly for a food waste disposer and a preferred embodiment 2 of the food waste disposer of the utility model are shown. This embodiment is basically the same as the embodiment 1, except that in this embodiment, only a third connecting pipe 831 is provided on the vertical section 83, and a fourth connecting pipe 832 is not provided.

[0063] Embodiment three:

[0064] like Figure 6 , 7As shown, a preferred embodiment 3 of a drainage assembly for a kitchen waste disposer and a kitchen waste disposer of the utility model is shown. This embodiment is basically the same as the embodiment 2, except that in this embodiment, no additional pipe is provided on the vertical section 83, and the first pipe 821 is connected with a second pipe 822, which extends obliquely from bottom to top in a posture close to the horizontal section 81 of the drainage elbow 8, and is arranged at an angle with the first pipe 821. The output end of the lower end of the second pipe 822 opens to the pipe wall of the first pipe 821 and is located below the first one-way valve 84, and the input end of the upper end of the second pipe 822 is used to connect to the strong drainage pipe of the dishwasher for the strong drainage input of the dishwasher.

[0065] Embodiment 4:

[0066] like Figure 8 , 9 As shown, a drainage component for a food waste disposer and a preferred embodiment of the food waste disposer of the utility model are shown in FIG. 4 . This embodiment is basically the same as the third embodiment, except that in this embodiment, the output end of the lower end of the second connecting pipe 822 opens to the pipe wall of the first connecting pipe 821 and is located above the first one-way valve 84 .

[0067] In the specification and claims of the present invention, terms indicating directions, such as "upper", "lower", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0068] The term "vertical" is also used in the specification and claims of the present utility model, which means basically along the up and down direction, and is not limited to the vertical direction only, and can also be slightly inclined relative to the vertical direction.

Claims

1. A drainage assembly for a kitchen waste disposer, comprising: A drainage elbow (8), along the flow direction of the water flow, the drainage elbow (8) comprising a transverse section (81) extending outwardly relative to a discharge port (10b) on a side wall of the food waste disposer, an arc section (82) gradually bending downward from an outer end of the transverse section (81), and a vertical section (83) extending downward from a lower end of the arc section (82); Features: The arc section (82) of the drainage elbow (8) is connected to a first connecting pipe (821) extending vertically upward or obliquely upward, the lower end of the first connecting pipe (821) opens on the pipe wall of the arc section (82) and faces the vertical section (83) of the drainage elbow (8), and the upper end of the first connecting pipe (821) is for external drainage to enter.

2. The drainage assembly according to claim 1, characterized in that: It also includes a first one-way valve (84) which is arranged at the lower end of the first connecting pipe (821) or at a position adjacent to the lower end to cut off the passage between the first connecting pipe (821) and the drainage elbow (8), and the first one-way valve (84) is arranged to be opened under the action of drainage flowing downward in the first connecting pipe (821).

3. The drainage assembly according to claim 2, characterized in that: The first one-way valve (84) comprises a first elastic valve plate, an edge portion of one side of the first valve plate being fixed relative to the first connecting pipe (821), a main body portion of the first valve plate being horizontally blocked in the first connecting pipe (821), and being able to rotate relative to the edge portion under the action of downwardly flowing drainage to connect the passage between the first connecting pipe (821) and the drainage elbow (8).

4. The drainage assembly according to claim 2, characterized in that: The first connecting pipe (821) is connected to a second connecting pipe (822), the output end of the second connecting pipe (822) is opened on the pipe wall of the first connecting pipe (821) and is located below or above the first one-way valve (84), and the input end of the second connecting pipe (822) is for external drainage to enter.

5. The drainage assembly according to claim 4, characterized in that: The first connecting pipe (821) and the second connecting pipe (822) are arranged at an angle.

6. The drainage assembly according to claim 4, characterized in that: The upper end of the first connecting pipe (821) is used to connect to the overflow pipe of the dishwasher; the input end of the second connecting pipe (822) is used to connect to the forced exhaust pipe of the dishwasher.

7. The drainage assembly according to claim 1, characterized in that: The first connecting pipe (821) extends obliquely from bottom to top in a posture away from the transverse section (81) of the drainage elbow (8).

8. The drainage assembly according to claim 1, characterized in that: The vertical section (83) of the drainage elbow (8) is connected to a third connecting pipe (831), the output end of the third connecting pipe (831) is opened on the pipe wall of the vertical section (83), and the input end of the third connecting pipe (831) is for external drainage to enter.

9. The drainage assembly according to claim 8, characterized in that: The third connecting pipe (831) extends obliquely from bottom to top in a posture away from the vertical section (83), the upper end of the third connecting pipe (831) is its input end, and the lower end of the third connecting pipe (831) is its output end.

10. The drainage assembly according to claim 8, characterized in that: The vertical section (83) of the drainage elbow (8) is also connected to a fourth connecting pipe (832), the output end of the fourth connecting pipe (832) is opened on the pipe wall of the vertical section (83), and the input end of the fourth connecting pipe (832) is for external drainage to enter.

11. The drainage assembly according to claim 10, characterized in that: The output end opening of the fourth connecting pipe (832) and the output end opening of the third connecting pipe (831) are arranged on both sides of the vertical section (83) opposite to each other.

12. The drainage assembly according to claim 10, characterized in that: The upper end of the first connecting pipe (821) is used to connect to the overflow pipe of the dishwasher; the input end of the third connecting pipe (831) is used to connect to the forced exhaust pipe of the dishwasher; and the input end of the fourth connecting pipe (832) is used to connect to the waste water pipe of the water purifier.

13. The drainage assembly according to claim 1, characterized in that: The invention also comprises a partition plate (85) which is vertically arranged in the arc section (82) of the drainage elbow (8) to divide the space in the arc section (82) into two parts, the first part corresponding to the lower end of the first connecting pipe (821) to connect the first connecting pipe (821) with the vertical section (83) of the drainage elbow (8), and the second part connecting the transverse section (81) and the vertical section (83) of the drainage elbow (8).

14. The drainage assembly according to any one of claims 1 to 13, characterized in that: It also includes a second one-way valve (86) disposed at the water inlet of the transverse section (81) of the drainage elbow (8) to close the water inlet, and the second one-way valve (86) is arranged to be able to open under the action of the water flow.

15. The drainage assembly according to claim 14, characterized in that: The second one-way valve (86) includes a second valve plate (861), which blocks the water inlet of the transverse section (81) of the drainage elbow (8) and can rotate under the action of the water flow to open the water inlet.

16. The drainage assembly according to claim 15, characterized in that: The rotation axis of the second valve plate (861) is adjacent to the upper edge of the second valve plate (861), and at least the lower part of the second valve plate (861) is provided with a counterweight block (862), and under the action of the gravity of the counterweight block (862), the second valve plate (861) always has a tendency to rotate downward to close the water inlet.

17. The drainage assembly according to any one of claims 1 to 13, characterized in that: The lower end of the vertical section (83) of the drainage elbow (8) is connected to a corrugated pipe to be connected to the sewer pipe of the user's home.

18. A kitchen waste disposer, characterized in that A drainage assembly as claimed in claim 16.

19. The food waste disposer according to claim 18, characterized in that: Also included are: A pulverizing cover (1) has a pulverizing chamber (10) inside, the upper portion of the pulverizing chamber (10) is provided with a feed inlet (10a) and a water inlet (10c), and the lower portion of the pulverizing chamber (10) is provided with the above-mentioned discharge port (10b) on the side wall; A crushing element (2) is disposed in the crushing chamber (10) and is used to crush the garbage entering from the feed port (10a); A driving mechanism (200), the output end of which acts on the crushing member (2) to drive the crushing member (2) to rotate; The second valve plate (861) is arranged to be able to overcome the gravity of the counterweight (862) and rotate upward to open the discharge port (10b) under the action of the fluid disturbed by the crushing element (2) in the crushing chamber (10).

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