Fermentation device for kitchen waste processor and kitchen waste processor

Abstract

The utility model relates to a fermentation device for a kitchen waste processor and the kitchen waste processor. The fermentation device comprises a fermentation box, the stirring device is arranged in the fermentation box; the stirring device comprises a stirring rod which is rotatably arranged in the fermentation box; the outer stirring blade and the inner stirring blade are both spirally arranged on the periphery of the stirring rod in the length direction of the stirring rod and connected with the stirring rod, and the spiral direction of the inner stirring blade is opposite to the spiral direction of the outer stirring blade; and the position of the inner stirring blade is closer to the stirring rod than the position of the outer stirring blade. The outer stirring blades and the inner stirring blades can convey garbage materials in two opposite directions in the inner area and the outer area respectively, so that the materials are circularly turned over in the fermentation box, the garbage materials are prevented from being independently gathered on one side of the fermentation box, the garbage materials are fully stirred, and the fermentation effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen garbage disposer technical field especially relates to a fermentation device for kitchen garbage disposer and kitchen garbage disposer. BACKGROUND

[0002] Kitchen garbage refers to the garbage produced in daily life, food processing, catering service and unit catering activities. Kitchen garbage contains high moisture and organic matter, which can easily rot and produce foul odor. Garbage disposer can process kitchen garbage and convert it into new resources. High organic matter content allows it to be used as fertilizer and feed after strict treatment. It can also produce biogas for fuel or power generation. The oil part can be used to prepare biofuels. Kitchen garbage disposer, especially commercial kitchen garbage disposer, usually includes a feed hopper, a crushing and squeezing device, a fermentation device and an organic fertilizer storage device. After the food waste to be treated is put into the feed hopper, it enters the crushing and squeezing device, which crushes and dewatering the garbage material. The dewatered garbage material enters the fermentation device for fermentation treatment. The treated material can be stored as organic fertilizer in the organic fertilizer storage device. During the fermentation device processing garbage material, fermentation powder is usually added for fermentation, which requires high temperature and humidity in the working chamber of the fermentation device. Therefore, the air humidity in the fermentation cavity needs to be accurately controlled to keep the garbage in the fermentation cavity in the best fermentation environment.

[0003] For example, the Chinese utility model patent application No. CN202320729466.X (authorized announcement No. CN219567826U) discloses a fermentation device for kitchen garbage disposer, which includes a fermentation box with a fermentation chamber, a dehumidification device connected to the fermentation chamber for dehumidifying the moisture in the fermentation chamber and returning it to the fermentation chamber, and a stirring device at the bottom of the fermentation chamber for stirring the garbage material entering it. The stirring device includes a stirring rod extending horizontally, and stirring blades are arranged on the stirring rod in the axial direction. The two ends of the stirring rod are rotatably supported on two opposite side walls in the front and rear directions of the fermentation box, and one end of the stirring rod extends out of the fermentation box and is connected to a stirring motor outside the fermentation box. Under the drive of the stirring motor, the stirring rod rotates around its axis, thereby stirring the garbage material and fermentation powder entering the fermentation chamber evenly.

[0004] However, the fermentation device used in the kitchen waste processor in the above-mentioned patent application still has some shortcomings: the waste material in the fermentation box is turned and stirred by the stirring blades set on the stirring rod. This stirring device cannot fully stir the waste material in the fermentation box, especially when the fermentation box is not discharging. The waste material tends to accumulate on one side of the fermentation box (that is, the end of the stirring device), which is not conducive to full fermentation in the fermentation box. Utility Model Content

[0005] The first technical problem to be solved by this utility model is to provide a fermentation device for kitchen waste processor that can fully stir waste materials and ensure fermentation effect, in light of the current state of the technology.

[0006] The second technical problem to be solved by this utility model is to provide a kitchen waste processor that uses the above-mentioned fermentation device, in view of the current state of the prior art.

[0007] The technical solution adopted by this utility model to solve the first technical problem is: a fermentation device for a kitchen waste processor, comprising:

[0008] Fermentation box;

[0009] A stirring device is installed inside the fermentation tank;

[0010] The stirring device includes:

[0011] A stirring rod is rotatably positioned inside the fermentation tank;

[0012] Both the outer and inner stirring blades are spirally arranged around the stirring rod along its length and connected to it. The spiral direction of the inner stirring blade is opposite to that of the outer stirring blade, and the inner stirring blade is located closer to the stirring rod than the outer stirring blade.

[0013] To facilitate the connection between the outer and inner stirring blades and the stirring rod, the stirring rod is provided with at least two support rod groups spaced apart along the length of the stirring rod. Each support rod group includes at least two connecting support rods arranged sequentially along the circumference of the stirring rod. Each connecting support rod extends outward from the stirring rod, and the outer and inner stirring blades are connected to the corresponding connecting support rods.

[0014] In order to facilitate the rotation of the stirring rod to the fermentation tank and to fully mix the waste materials in various positions in the fermentation tank and reduce the mixing dead zones, the fermentation tank includes two opposing vertical plates and a concave arc-shaped side plate connected between the two vertical plates. The stirring rod extends horizontally and is perpendicular to the two vertical plates.

[0015] In order to better drive the fermented material to be quantitatively discharged, the fermentation device further comprises:

[0016] The lifting wheel is arranged in the fermentation tank and is provided with storage hoppers arranged in sequence in the circumferential direction.

[0017] The discharge hopper is arranged on the inner side wall of the fermentation tank and is located below the top region of the lifting wheel.

[0018] Generally, the discharge hopper can be arranged downwardly so that the garbage material falling into the discharge hopper is automatically discharged under the action of gravity, but this discharge mode is prone to be blocked due to material accumulation and cannot realize continuous discharge.

[0019] The lifting wheel can be driven to rotate by a separate driving device.

[0020] In order to realize stable and continuous feeding into the fermentation tank, the fermentation device further comprises a feeding cylinder extending outward from the fermentation tank and being connected with the internal space of the fermentation tank, and a feeding auger assembly arranged in the feeding cylinder.

[0021] The feeding auger assembly can be driven to rotate by a separate driving device.

[0022] The utility model solves the second technical problem, which is a kitchen garbage processor, including casing, feed hopper, be arranged in the rubbing and drying device and fermentation device of smashing of casing, the fermentation device is used for receiving garbage material from the rubbing and drying device and carries out fermentation treatment, the fermentation device above-mentioned kitchen garbage processor uses fermentation device.

[0023] Compared with the prior art, the utility model discloses the advantages that: the stirring rod in the fermentation tank is equipped with outer stirring vane and inner stirring vane, wherein the spiral direction of the inner stirring vane is opposite with the spiral direction of the outer stirring vane, so that when the stirring device acts, the outer stirring vane and the inner stirring vane can respectively convey garbage material to two opposite directions in the inner and outer two areas, thereby realizing the circulation of the material in the fermentation tank, avoiding that the garbage material gathers in one side of the fermentation tank, realizing the sufficient stirring of the garbage material and guaranteeing the fermentation effect. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the three -dimensional structure schematic view of kitchen garbage processor of the utility model embodiment;

[0025] Figure 2 It is the vertical section view of kitchen garbage processor of the utility model embodiment;

[0026] Figure 3 It is the three -dimensional structure schematic view of the pulverization extruding device of the utility model embodiment;

[0027] Figure 4 It is the three -dimensional structure schematic view of the pulverization extruding device of the utility model embodiment after the board body of top is omitted;

[0028] Figure 5 It is the three -dimensional structure schematic view of screw rod subassembly of the utility model embodiment;

[0029] Figure 6 It is Figure 5 Sectional view at A-A;

[0030] Figure 7 It is the three -dimensional structure schematic view of the end of screw rod subassembly of the utility model embodiment;

[0031] Figure 8 It is the three -dimensional structure schematic view of the pulverization section of screw rod of the utility model embodiment;

[0032] Figure 9 It is the left view of screw rod of the utility model embodiment;

[0033] Figure 10 It is the three -dimensional structure schematic view of fermentation device of the utility model embodiment;

[0034] Figure 11 It is the vertical section view of fermentation device of the utility model embodiment;

[0035] Figure 12 It is the three -dimensional structure schematic view of stirring device of the utility model embodiment;

[0036] Figure 13A three-dimensional structure schematic view of the lifting material wheel of the embodiment of the present utility model;

[0037] Figure 14 A sectional three-dimensional view of the lifting material wheel of the embodiment of the present utility model, which is cut along the direction perpendicular to the axial direction thereof;

[0038] Figure 15 A three-dimensional structure schematic view of the kitchen garbage disposer of the embodiment of the present utility model (the cover plate is in the open state);

[0039] Figure 16 A bottom view of the rotating spray head of the embodiment of the present utility model. DETAILED DESCRIPTION

[0040] The present utility model will be further described in detail below in combination with the embodiment of the drawings.

[0041] In the specification and claims of the present utility model, directional terms such as "front", "back", "up", "down", "left", "right", "side", "top", "bottom" and the like are used to describe various example structural parts and elements of the present utility model, but these terms are used herein only for the purpose of convenience of description and are determined based on the example orientation shown in the drawings. Since the embodiments disclosed in the present utility model can be arranged in different directions, these directional terms are only used for description and should not be regarded as limitation, for example, "up" and "down" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

[0042] Figures 1-16 A preferred embodiment of the kitchen garbage disposer of the present utility model is shown. The kitchen garbage disposer comprises a housing 10, a feeding hopper 11, a water receiving tank 15, a crushing and squeezing device 2 and a fermentation device. The feeding hopper 11, the water receiving tank 15, the crushing and squeezing device 2 and the fermentation device are all arranged in the housing 10.

[0043] Referring to Figure 2 , the feeding hopper 11 has a conical structure with a large top and a small bottom. The top of the feeding hopper 11 has a feeding opening. The top of the housing 10 has a cover plate 12 at a position opposite to the feeding opening of the feeding hopper 11. The rear side of the cover plate is rotatably connected to the housing 10 through left and right extending pin shafts and can be flipped upward to open the feeding opening and flipped downward to close the feeding opening.

[0044] Referring to Figure 1 , the top of the housing 10 is further provided with a touch control operation screen 14 capable of performing function control on the kitchen garbage disposer. The touch control operation screen 14 is located at one side of the cover plate 12.

[0045] Continuously referring to Figure 2The crushing and squeezing device 2 is located below the feeding hopper 11 and specifically includes a first driving motor 51, a fixed frame 21, a squeezing cylinder 26, a screw assembly, and a floating discharging assembly. The fixed frame 21 is in the shape of a long strip and is formed by a plurality of frame plates. The fixed frame 21 defines a working chamber and a discharging chamber 25 adjacent to the working chamber. Two ends of the working chamber in the length direction are respectively formed with a feeding port 211 and a discharging port 212. The feeding port 211 is formed at the top of one end of the working chamber, and the discharging port 212 is arranged at the side of the working chamber and communicates with the discharging chamber 25. The fixed frame 21 gradually inclines upward from the feeding port 211 to the discharging port 212.

[0046] Referring to Figures 3-9 The screw assembly is arranged in the working chamber and includes two screws 22 arranged side by side and capable of rotating in opposite directions about respective axes. The two screws 22 extend from the position of the feeding port 211 to the position of the discharging port 212 of the fixed frame 21. The two screws 22 rotate in opposite directions. Specifically, one end of each screw 22 is rotatably connected to the frame plate of one end of the fixed frame 21 through an angular contact pair of bearings. The end of one screw 22 extends out of the frame plate of the fixed frame 21 and is coaxially connected to a first driving sprocket 61. The first driving sprocket 61 is connected to a first driving motor 51 through a transmission chain. The two screws 22 at the end are engaged through gears 64 connected to the two screws 22, respectively. Thus, when one screw 22 is driven to rotate by the first driving motor, the other screw 22 can also rotate synchronously. The other end of the two screws 22 extends into the discharging chamber 25 through the discharging port 212 and is rotatably connected to the frame plate of the other end of the fixed frame 21 through a ball roller bearing.

[0047] The inclination direction of the screw assembly of the embodiment is consistent with the inclination direction of the fixed frame 21 and gradually inclines upward from the feeding port 211 to the discharging port 212. The two screws 22 of the screw assembly are arranged side by side in front and back, i.e., the height positions of the two screws 22 are basically consistent.

[0048] Referring to Figure 2The extrusion cylinder 26 is arranged on the fixed frame 21 and located at the periphery of the screw assembly. The extrusion cylinder 26 comprises an upper cylinder body 261 and a lower cylinder body 262 which are connected together. The upper end of the upper cylinder body 261 is slightly shorter than the length of the lower cylinder body 262 to match the feeding port 211 formed at the top. The upper cylinder body 261 is a solid plate body without mesh, and the lower cylinder body 262 is located below the screw assembly and is provided with water leakage holes. When the screw assembly operates, the garbage material is pressed and dewatered by cooperating with the extrusion cylinder 26, and the separated water is discharged through the water leakage holes of the lower cylinder body 262 and falls into the water receiving tank 15 below the crushing and dewatering device 2. The extrusion cylinder 26 adopts the structure of the upper and lower cylinder bodies which can facilitate the installation of the screw assembly and other components.

[0049] Referring to Figure 5 The screw assembly is sequentially divided into the crushing section 221 and the dewatering section along the material flow direction in the working chamber. The part of each screw 22 corresponding to the crushing section 221 is provided with crushing blades 2210 arranged in a spiral along the axial direction of the corresponding screw 22, and the part of each screw 22 corresponding to the dewatering section is provided with extrusion blades arranged in a spiral along the axial direction of the corresponding screw 22. The spiral direction of the crushing blades 2210 and the spiral direction of the extrusion blades on each screw 22 are opposite to the rotation direction of the screw. Specifically, the dewatering section of the screw assembly of the embodiment comprises a first dewatering section 222 and a second dewatering section 223 arranged in sequence along the material flow direction in the working chamber, and the extrusion blades on each screw 22 correspond to the first extrusion blades 2221 and the second extrusion blades 2231.

[0050] The crushing blades 2210 on each screw rod 22 are arranged at least two in the circumferential direction of the screw rod 22, and the gap between the two crushing blades 2210 corresponds to the engagement groove 2211 arranged in the axial direction of the screw rod 22 in a spiral shape. The crushing blade 2210 on each screw rod 22 has a blade root 2212 connected to the screw rod 22 and a blade outer edge 2213 away from the screw rod 22, and the blade outer edge 2213 of the crushing blade 2210 has a cutting groove 2214 opened in the extending direction of the crushing blade 2210. In order to further improve the crushing effect on hard materials, the height of the crushing blade 2210 is H, and the depth of the cutting groove 2214 on the crushing blade 2210 is h, wherein the height H of the crushing blade 2210 (which can also be understood as the depth of the engagement groove 2211) is generally less than 30 mm, preferably 17 mm. In order to ensure the cutting effect, the depth h of the cutting groove 2214 is in the range of h≤10 mm, preferably 4-8 mm. On the other hand, the width of the cutting groove 2214 (i.e. the size in the circumferential direction of the screw rod) should not be too small, and it is appropriate to be slightly smaller than the thickness of the tooth crest of the crushing blade 2210. The width of the cutting groove 2214 on the crushing blade 2210 should not be too small, and it is best to be slightly smaller than the width of the blade outer edge 2213 of the crushing blade 2210, so that the parts of the blade outer edge 2213 of the crushing blade 2210 corresponding to the two sides of the cutting groove 2214 form two cutting teeth 2215. In the process of mutual rotation and engagement of the two screw rods 22 of the screw rod assembly, the cutting groove 2214 (i.e. the cutting tooth 2215) on the helical blade of one of the screw rods 22 can cooperate with the bottom wall or side wall of the corresponding pressing groove on the other screw rod 22 to better extrude and crush hard materials such as bones and corn cobs, ensuring the cross-cutting and extrusion effect on large materials. After effectively extruding and crushing the garbage materials, the material pushing speed to the extrusion section is also improved, the load is reduced, and the power consumption is reduced.

[0051] The feed inlet 211 of the embodiment is opposite to the crushing section 221 of the screw rod assembly, and when the screw rod assembly is in operation, the garbage materials put into the feed hopper 11 can be directly crushed under the engagement of the crushing blades 2210 of the screw rod assembly, and at the same time, the garbage materials are pushed towards the extrusion section

[0052] The fixed frame 21 is also provided with a position corresponding to the end position of the crushing section 221 of the screw rod assembly in the transverse direction of the fixed frame 21 (i.e. the front-rear direction of the shell, see Figure 4The guide matching block 23 arranged in extension in the direction indicated by the arrow D has a guide slope 230 gradually inclined towards the fixed frame 21 from the position where the feed port 211 of the fixed frame 21 is located to the position where the discharge port 212 is located, and the guide slope 230 is provided with cutting teeth 231 arranged in sequence in the transverse direction of the fixed frame 21. Each cutting tooth 231 on the guide matching block 23 can form a cutting cooperation with the crushing blade 2210 on the screw 22 to further cut the garbage material ready to enter the squeezing section, thereby improving the crushing effect. The arrangement of the guide slope 230 can make the garbage material treated by the crushing section 221 enter the area where the squeezing section is located more smoothly, avoiding the problem of accumulation of garbage material.

[0053] Referring to Figure 5 and Figure 6 , along the rotation direction of the screw 22 (see the arrow direction in Figure 6 , the front side of the extrusion blade (including the first extrusion blade 2221 and the second extrusion blade 2231) is the working surface 2201, and the pressure angle of the working surface 2201 of the extrusion blade is denoted as A, wherein the value range of A is: 8°≤A≤45°. The "working surface" of the above-mentioned extrusion blade can be understood as the side surface of the extrusion blade used to push the garbage material during the rotation of the screw 22, and the working surface can be a planar structure or a smooth curved surface structure. In this embodiment, the pressure angle of the working surface side of the extrusion blade of the squeezing section is reasonably designed, specifically, the pressure angle is set in the range of 8°≤A≤45°, so that when the two screws rotate in cooperation, the above-mentioned extrusion blade can push the garbage material as much as possible to the upper part, so that most of the material remains above the two screws, and the pressure is generated to effectively squeeze and dewater the garbage material, thereby effectively reducing the pressure between the lower part of the screw and the extrusion cylinder, and improving the problem of material leakage from the leakage hole at the bottom of the extrusion cylinder. In the preferred embodiment, the pressure angle of the working surface of the extrusion blade is: 15°≤A≤25°, which can not only effectively improve the problem of material leakage at the bottom of the extrusion cylinder, but also ensure the forward pushing force and improve the material processing speed.

[0054] The rotation angle of the first extrusion blade 2221 of the first extruding section is denoted as α, and the rotation angle α increases in turn along the material flow direction, that is, the pitch of the first extrusion blade 2221 gradually decreases along the conveying direction of the material, and the rotation angle α is in the range of 30°≤α≤65°. The rotation angle of the second extrusion blade 2231 of the second extruding section is denoted as β, and the rotation angle β increases in turn along the material flow direction, that is, the pitch of the second extrusion blade 2231 gradually decreases along the conveying direction of the material, and the rotation angle β is in the range of 50°≤β≤85°. The first extrusion blade 2221 of the first extruding section 222 adopts a relatively small helix angle, and the axial thrust on the material is smaller and the radial thrust is larger. By using the opposite double screws with small rotation angles, the material can be effectively extruded and dewatered in the radial direction. At the end of the material pushing, the second extrusion blade 2231 of the second extruding section 223 adopts a relatively large helix angle, and the axial thrust on the material is larger and the radial thrust is smaller. Thus, by using the opposite double screws with large rotation angles, the material can be quickly pushed in the axial direction, so as to ensure the speed of the garbage material discharged from the discharge port 212, and make the garbage material meeting the requirements discharged as soon as possible.

[0055] The first extrusion blade 2221 and the second extrusion blade 2231 of the screw 22 have a mounting gap 220 therebetween, and the knife ring 24 is arranged in the working chamber at a position corresponding to the mounting gap 220. The inner peripheral wall of the knife ring 24 has protrusions 241 arranged in a circumferential direction and extending towards the mounting gap 220. During the process of the garbage material entering the second extruding section 223 from the first extruding section 222, the garbage material can be further cut by the knife ring 24, so as to ensure the crushing effect of the garbage material, especially the long-fiber garbage.

[0056] Referring to Figure 2 and Figure 7, the two screws 22 of the screw assembly are further sleeved with a floating discharge assembly capable of reciprocating along the axial direction of the screw 22 to open or close the discharge port 212 at the end away from the feeding port 211, and the floating discharge assembly is arranged in the discharge chamber 25. The floating discharge assembly comprises a floating ring 31, a fixed ring 32 and a spring 33. The fixed ring 32 is arranged at the end of the screw 22 away from the feeding port 211, and specifically, the end of the screw 22 away from the feeding port 211 is externally threaded, and the fixed ring 32 can be threadedly connected to the end of the screw 22 or limited by a nut threadedly connected to the end of the screw 22. The floating ring 31 is movably sleeved on the screw 22 along the axial direction of the screw 22 and can open or block the discharge port 212. The spring 33 is arranged between the floating ring 31 and the fixed ring 32, one end of the spring 33 abuts against the fixed ring 32, and the other end abuts against the floating ring 31, so that the floating ring 31 always has a tendency to move towards the discharge port 212 to block the discharge port 212. The floating ring 31 is a hollow cylindrical structure, and the end thereof towards the discharge port 212 is configured as a tapered head structure 311, and the other end thereof away from the discharge port 212 has a positioning groove 312 for limiting one end of the spring 33 therein, so as to effectively position the spring 33 and avoid the problem of jamming due to the radial shaking of the spring 33.

[0057] Referring to Figure 7 In the preferred embodiment, the outer peripheral wall of the end of the two screws 22 away from the feeding port 211 further has an outwardly protruding limiting protrusion 224, and the wall of the floating ring 31 is correspondingly provided with a strip-shaped limiting groove 310 arranged along the axial direction thereof, and the limiting protrusion 224 is slidingly limited in the strip-shaped limiting groove 310 of the floating ring 31. The two ends of the strip-shaped limiting groove 310 are closed, which can define the limit positions of the reciprocating movement of the floating ring 31 along the screw 22, and further make the tapered head structure 311 of the floating ring 31 have a certain gap between the outer contour surface thereof and the inner contour surface of the corresponding discharge port 212 when the floating ring 31 is in a natural state under the elastic force of the spring 33. The gap size between the tapered head structure 311 of the floating ring 31 and the inner contour surface of the corresponding discharge port 212 can be designed according to actual needs, and it is appropriate to be controlled within 2 mm, so that the extruded material of the size within 2 mm can pass out. When the pressure at the end of the working chamber is greater than the spring 33 pressure of the floating discharge assembly, the floating ring 31 moves away from the side of the discharge port 212, the discharge gap is increased, the material discharge speed is increased, and the pressure in the working chamber is decreased. When the pressure at the end of the working chamber is less than the spring 33 pressure of the floating discharge assembly, the floating ring 31 moves towards the side close to the discharge port 212, the discharge gap is reduced, the material discharge speed is reduced, and the pressure in the working chamber is increased, thereby achieving the purpose of automatic pressure control.

[0058] Referring to Figures 10-14The fermentation device is located at one side of the discharging chamber 25 of the crushing and squeezing device 2, and is used to receive the garbage material processed by the crushing and squeezing device 2 and to perform fermentation treatment. The fermentation device includes a fermentation box 4, a stirring device, a feeding cylinder 41, a feeding auger assembly 42, a lifting wheel 48, a discharging hopper 43, a discharging cylinder 44, and a discharging auger assembly 45. The stirring device, the lifting wheel 48, and the discharging hopper 43 are all arranged in the fermentation box 4.

[0059] The stirring device includes a stirring rod 46, outer stirring blades 471, and inner stirring blades 472. The stirring rod 46 extends horizontally and is rotatably arranged in the fermentation box 4. The outer stirring blades 471 and the inner stirring blades 472 are arranged in a spiral shape along the length direction of the stirring rod 46 at the periphery of the stirring rod 46 and are connected to the stirring rod 46. The spiral direction of the inner stirring blades 472 is opposite to the spiral direction of the outer stirring blades 471, and the inner stirring blades 472 are located closer to the stirring rod 46 than the outer stirring blades 471. Because the spiral direction of the inner stirring blades 472 is opposite to the spiral direction of the outer stirring blades 471, when the stirring device operates, the outer stirring blades 471 and the inner stirring blades 472 can respectively convey the garbage material in the inner and outer areas towards opposite directions, thereby realizing the circulation and turning of the garbage material in the fermentation box 4, avoiding the garbage material from gathering on one side of the fermentation box 4, and achieving sufficient stirring of the garbage material to ensure the fermentation effect.

[0060] The stirring rod 46 is provided with at least two support rod groups arranged at intervals along the length direction of the stirring rod 46, such as Figure 12 Three support rod groups are shown. Each support rod group includes at least two connecting rods 461 arranged in sequence along the circumferential direction of the stirring rod 46, each connecting rod 461 extends outward from the stirring rod 46, and the outer stirring blades 471 and the inner stirring blades 472 are connected to the corresponding connecting rods 461. For example, Figure 11 Each support rod group in the above figure shows four connecting rods 461 arranged uniformly in the circumferential direction, and there are also four outer stirring blades 471 and four inner stirring blades 472. For each connecting rod 461, the connecting positions of the outer stirring blades 471 and the inner stirring blades 472 to the connecting rod 461 are different, and the connecting position of the inner stirring blades 472 to the connecting rod 461 is closer to the stirring rod 46 than the connecting position of the outer stirring blades 471 to the connecting rod 461.

[0061] The fermentation tank 4 comprises two opposite vertical plates 401 and a side plate 402 connected between the two vertical plates 401 and in a concave circular arc shape. One of the vertical plates 401 is provided with a feeding cylinder 41 extending out of the fermentation tank 4, the outer end of the feeding cylinder 41 is closed, and the inner end is in communication with the inner cylinder of the fermentation tank 4. The top of the feeding cylinder 41 is open to form a feeding port 411, which is located at the bottom of the discharging chamber 25 of the crushing and squeezing device 2, and is used to receive the garbage material falling from the bottom of the discharging chamber. The feeding cylinder 41 is provided with a feeding auger assembly 42, which comprises a feeding rotating shaft 421 and a feeding auger blade 422 spirally arranged on the periphery of the feeding rotating shaft 421 and connected with the feeding rotating shaft 421. The feeding rotating shaft 421 is driven to rotate by an external driving mechanism, and the feeding auger blade 422 is driven to rotate, and the garbage material falling into the feeding cylinder 41 is pushed into the fermentation tank 4.

[0062] In the preferred embodiment, one end of the stirring rod 46 of the stirring device is rotatably connected to one of the vertical plates 401, and the other end is coaxially connected to the feeding rotating shaft 421 of the feeding auger blade 422. The stirring rod 46 and the feeding rotating shaft 421 can be the same rod body or two rod body components connected together. See Figure 2 and Figure 11 The end of the feeding rotating shaft 421 extends out of the side wall of the outer end of the feeding cylinder 41 and is coaxially connected to a second transmission sprocket 63, which can also be connected to the second driving motor (not shown) through a transmission chain and a second driving sprocket.

[0063] The lifting wheel 48 is rotatably arranged in the fermentation tank 4, and the lifting wheel 48 is provided with a plurality of storage hoppers 481 arranged in sequence in the circumferential direction. The opening direction of the storage hopper 481 is towards the inner side of the lifting wheel 48 and is inclined forward along the rotation direction of the lifting wheel 48 (see the direction of arrow S in Figure 14 The vertical plate 401 away from the feeding cylinder 41 of the fermentation tank 4 is provided with a discharging hopper 43 extending horizontally from the inner side of the vertical plate 401 towards the fermentation tank 4, and the discharging hopper 43 is arranged below the top region of the lifting wheel 48, i.e. in the upper region inside the lifting wheel 48. The top of the discharging hopper 43 is open. During the rotation of the lifting wheel 48, the bottom storage hopper 481 can carry garbage material at the bottom of the fermentation tank 4 and rotate upwards with the lifting wheel 48. When the lifting wheel 48 rotates to the top, the opening of the storage hopper 481 is towards the inside of the storage hopper 481, and the garbage material carried in the storage hopper 481 falls into the discharging hopper 43. In order to facilitate the rotation of the lifting wheel 48, the lifting wheel 48 can be coaxially arranged with the stirring rod 46, and one side of the lifting wheel 48 is connected to the four connecting struts 461 at the end position of the stirring rod 46 of the stirring device, and the lifting wheel 48 is driven to rotate by the stirring rod 46. Specifically, the stirring rod 46 passes through the lifting wheel 48 and is rotatably connected to the vertical plate 401 of the fermentation tank 4.

[0064] The vertical plate 401 of the fermentation tank 4 is further provided with a horizontally extending discharge cylinder 44 extending from inside the fermentation tank 4 to outside the fermentation tank 4. Specifically, an inner port of the discharge cylinder 44 is in communication with the discharge hopper 43, and a bottom of an end of the discharge cylinder 44 away from the fermentation tank 4 is provided with a discharge port 441. The discharge hopper 43 and the discharge cylinder 44 are provided with a discharge auger assembly 45 for pushing the garbage in the discharge hopper 43 to outside the fermentation tank 4. The discharge auger assembly 45 includes a discharge rotating rod 451 and discharge auger blades 452, wherein the discharge auger blades 452 are connected to the discharge rotating rod 451 and arranged in a spiral shape along an axial direction of the discharge rotating rod 451 at an outer periphery of the discharge rotating rod 451. One end of the discharge rotating rod 451 can be connected in transmission with a third driving motor 53 outside the discharge cylinder 44 (through a chain wheel transmission assembly or a gear transmission assembly) after passing through an end plate of an outer end of the discharge cylinder 44. After the third driving motor 53 is started, the discharge auger assembly 45 is rotated, so that the garbage material falling into the discharge hopper 43 is pushed outward along the discharge cylinder 44, realizing quantitative discharge.

[0065] Referring to Figure 15 and Figure 16 The back surface of the cover plate 12 at the top of the shell 10 of the kitchen garbage disposer of the embodiment is further provided with a rotating spray head assembly 13, which includes a water outlet pipe 131 rotatably arranged at the back surface of the cover plate and at least two spray heads 132 arranged at intervals along a circumferential direction of the water outlet pipe 131 and extending outward from the water outlet pipe 131, as shown in Figure 14 The rotating spray head assembly 13 is provided with three spray heads 132. The water outlet direction of each spray head 132 is inclined relative to the vertical direction, so that the rotating spray head assembly 13 can rotate under the reaction of the water flow from the spray heads 132. When it is necessary to clean the feeding hopper 11, the cover plate is closed, the water supply switch is opened, and the rotating spray head assembly 13 can rotate under the reaction of the water flow from the spray heads 132 to clean the inner wall of the feeding hopper 11 comprehensively. Since the spray heads 132 of the rotating spray head assembly 13 automatically rotate under the action of the water flow, it is not necessary to additionally provide a driving mechanism to drive the spray heads 132 to rotate, thereby reducing the production cost and the use cost of the user.

Claims

1. A fermentation device for a kitchen waste disposer, comprising: a fermentation tank (4); a stirring device arranged in the fermentation tank (4); characterized in that the stirring device comprises: a stirring rod (46) arranged rotatably in the fermentation tank (4); outer stirring blades (471) and inner stirring blades (472) arranged helically along the length of the stirring rod (46) on the periphery of the stirring rod (46) and connected to the stirring rod (46), the inner stirring blades (472) being arranged in a helical direction opposite to the helical direction of the outer stirring blades (471), and the inner stirring blades (472) being arranged closer to the stirring rod (46) than the outer stirring blades (471). At least two groups of support rods are arranged along the length of the stirring rod (46), each group of support rods comprising at least two connecting support rods (461) arranged sequentially along the circumference of the stirring rod (46), each connecting support rod (461) extending outwardly from the stirring rod (46), and the outer stirring blades (471) and the inner stirring blades (472) being connected to corresponding connecting support rods (461). The fermentation tank (4) comprises two opposite vertical plates (401) and a side plate (402) connected between the two vertical plates (401) and arranged in a concave circular arc shape, and the stirring rod (46) extends horizontally and perpendicularly to the two vertical plates (401). Further comprising: a lifting wheel (48) arranged rotatably in the fermentation tank (4), the lifting wheel (48) being provided with storage hoppers (481) arranged sequentially along the circumference, the opening direction of the storage hoppers (481) being directed inwardly of the lifting wheel (48) and inclined forwardly relative to the rotation direction of the lifting wheel (48); a discharge hopper (43) arranged on the inner side wall of the fermentation tank (4) and located below the top region of the lifting wheel (48), the discharge hopper (43) being open at the top to receive waste materials falling from the storage hoppers (481) of the lifting wheel (48).

2. The fermentation device for a kitchen garbage disposer according to claim 1, characterized by: Further comprising a discharge cylinder (44) arranged on the fermentation tank (4), the discharge cylinder (44) extending outwardly from the fermentation tank (4) to the outside of the fermentation tank (4), the inner port of the discharge cylinder (44) being in communication with the discharge hopper (43), a discharge port (441) being formed at the bottom of the end of the discharge cylinder (44) away from the fermentation tank (4), and an unloading auger assembly (45) being arranged in the discharge hopper (43) and the discharge cylinder (44) to push the waste in the discharge hopper (43) out of the fermentation tank (4).

3. The fermentation device for a kitchen garbage disposer according to claim 1, characterized by: The lifting wheel (48) is arranged adjacent to the end of the stirring rod (46) and connected to the stirring rod (46), so as to be driven to rotate by the stirring rod (46).

4. The fermentation device for a kitchen garbage disposer according to any one of claims 1 to 3, characterized in that, ​ ​ ​ 5. The fermentation device for a kitchen garbage disposer according to claim 4, characterized in that: ​ 6. The fermentation device for a kitchen garbage disposer according to claim 4, characterized in that: ​ 7. The fermentation device for a kitchen garbage disposer according to claim 4, characterized by: Further comprising a feeding cylinder (41) extending outward from the fermentation tank (4) and communicating with the interior space of the fermentation tank (4), and a feeding auger assembly (42) rotatably arranged in the feeding cylinder (41), wherein the feeding cylinder (41) is provided with a feeding inlet (411) at an end away from the fermentation tank (4).

8. The fermentation device for a kitchen garbage disposer according to claim 7, characterized in that: The feeding auger assembly (42) comprises a feeding rotating rod (421) coaxially arranged with the stirring rod (46), and feeding auger blades (422) connected with the feeding rotating rod (421) and spirally arranged outside the feeding rotating rod (421).

9. A kitchen waste processor comprising a housing, a feed hopper (11), a crushing and squeezing device (2) arranged in the housing, and a fermentation device for receiving waste material processed by the crushing and squeezing device (2) and for performing fermentation treatment, characterized in that: The fermentation device adopts the fermentation device for kitchen waste processor according to any one of claims 1-8.

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