Kitchen garbage treatment device

Abstract

The invention discloses a kitchen garbage treatment device which comprises an upper shell and a lower shell, an air inlet and an air outlet are formed in the upper shell, an inner barrel used for containing kitchen garbage is arranged in the lower shell, water filtering holes are formed in the bottom of the inner barrel, and a heating air exchange device and a filtering device are arranged in the upper shell. The heating air exchange device comprises an inner circulation cover, an air draft device and a heating device, an inner circulation cavity is formed in the inner circulation cover, the air draft end of the air draft device is communicated with the interior of the inner barrel, the air exhaust end of the air draft device is communicated with the heating device and an inlet of the filtering device, and an outlet of the filtering device is communicated with the air outlet; a hot air outlet of the heating device is located in the inner circulation cavity, the inner cylinder and the inner wall of the lower shell are arranged in a spaced mode, a mixing cavity is formed in the periphery and the bottom of the inner cylinder, and an inlet of the mixing cavity is communicated with the air inlet and an outlet of the circulation cavity. And the kitchen garbage is uniformly heated in the longitudinal direction and the transverse direction during hot air circulation, heat loss is reduced, and the drying effect is remarkably improved.

Description

Technical Field

[0001] The invention relates to the field of kitchen waste treatment, and in particular to a kitchen waste treatment device. Background Art

[0002] In order to reduce the volume of kitchen waste, prevent excessive reproduction of microorganisms, and reduce the generation of odor, the existing kitchen waste treatment methods usually require dehydration of pure liquid food waste and kitchen waste with high water content. Common heating methods mainly include heating the container or sending hot air into the container and drying the kitchen waste with hot air. Since the method of directly heating the container is likely to cause the kitchen waste to burn and stick to the inner wall of the container, making the container difficult to clean and prone to uneven heating, the hot air drying method is usually better than the method of directly heating the container.

[0003] The common hot air heating method is mainly to set a hot air mechanism on the top of the container, and continuously blow hot air to the surface of the kitchen waste through the hot air mechanism, so as to achieve the effect of heating and drying the kitchen waste, and set an exhaust mechanism and / or a filtering device connected to the container to discharge the excess air inside the container; for example: a multifunctional household garbage disposal machine disclosed by the utility model patent with authorization announcement number CN212504636U, because the hot air blows directly from the top to the surface of the kitchen waste, at this time, the kitchen waste located directly below the hot air is heated faster, while the heating effect of the part farther away from the hot air is relatively poor, resulting in uneven heating effect on the surface of the kitchen waste; at the same time, it is difficult for the hot air at the top to pass through the surface of the kitchen waste to enter the inside of the kitchen waste, so the surface of the kitchen waste is prone to overheating, while the inside and bottom of the kitchen waste cannot be exposed to the hot air, resulting in poor heating effect in the vertical direction. In addition, some food waste treatment devices are also designed with complex exhaust ducts, such as a heat radiation air internal circulation food waste dryer disclosed in the utility model patent with authorization announcement number CN221840010U. On the one hand, it leads to a complex internal structure of the machine and excessive space occupation. On the other hand, due to the long duct design, the exhaust power is insufficient, and an additional exhaust device is required to draw the air in the container into the filter for discharge.

[0004] In some prior arts, the steam outlet is arranged on the side or bottom of the container, such as a flip-top kitchen waste drying and weight reduction machine disclosed in the invention patent with authorization announcement number CN118758003A. In this dryer, a water receiving box steam outlet is arranged on the lower side wall of the water receiving box, and the steam at the steam outlet is sucked into the deodorization component through the exhaust component.

[0005] Top blowing and bottom recycling When the moisture content is high, the excess liquid will easily penetrate into the steam outlet, shortening the filter life. Compared with the above method, this structure can increase the vertical contact between hot air and kitchen waste, but the filtering and exhaust power is insufficient, and in addition to the blower, an additional exhaust / pneumatic device is required. In addition, like the common hot air heating method, the hot air first contacts the top of the food waste, while the bottom of the food waste has more moisture, or when the container has a water filter structure, the filtered liquid is also usually located at the bottom of the container, and when the hot air at the top of the food waste is recovered from the middle, it cannot contact the liquid at the bottom. When the hot air is recovered from the bottom, although it can contact the liquid at the bottom, most of the heat has been lost in the process of hot air contacting the food waste. Therefore, the part at the bottom with more moisture and the filtered liquid cannot evaporate moisture better. Summary of the invention

[0006] Therefore, in order to solve the above problems, the present invention provides a kitchen waste treatment device.

[0007] The present invention is achieved through the following technical solutions: A kitchen waste treatment device comprises an upper shell and a lower shell, wherein the upper shell is respectively provided with an air inlet and an air outlet, an inner cylinder for accommodating kitchen waste is provided in the lower shell, a water filter hole is provided at the bottom of the inner cylinder, a heating and air exchange device and a filtering device are provided in the upper shell, the heating and air exchange device comprises an inner circulation cover, an exhaust device and a heating device, an inner circulation cover is provided with an inner circulation cavity, an exhaust end of the exhaust device is communicated with the inner part of the inner cylinder, and an exhaust end of the exhaust device is respectively communicated with the inlet of the heating device and the filtering device, so that the Part of the air exhausted by the exhaust device enters the filtering device, and the other part flows to the heating device for heating. The outlet of the filtering device is communicated with the air outlet. The hot air outlet of the heating device is located in the inner circulation chamber. The inner cylinder is spaced apart from the inner wall of the lower shell, and a mixing chamber is formed on the outer periphery and bottom of the inner cylinder. The inlet of the mixing chamber is respectively connected to the air inlet and the outlet of the inner circulation chamber. The external air entering from the air inlet and the hot air in the inner circulation chamber both converge into the mixing chamber and enter the inner cylinder from the water filter hole.

[0008] Preferably, a lining plate is provided at the bottom of the upper shell, and the lining plate is located between the upper shell and the lower shell, and the lining plate is respectively provided with a first vent for connecting the inner cylinder and the exhaust end of the exhaust device, a second vent for connecting the air inlet and the mixing chamber, and a third vent for connecting the inner circulation chamber and the mixing chamber.

[0009] Preferably, a baffle is further provided at the bottom of the liner, the baffle covers the top of the opening of the inner tube, and a avoidance hole for avoiding the first vent is provided on the baffle, and the avoidance hole is located at the bottom of the first vent.

[0010] Preferably, the interior of the upper shell is separated into a first cavity and a second cavity by a side panel, the heating and air exchange device is arranged in the first cavity, the air inlet is located at the top of the first cavity, the first vent, the second vent and the third vent are all located at the bottom of the first cavity, the filter device is arranged in the second cavity, and a through hole is also provided at the bottom of the side panel between the second cavity and the first cavity, and the through hole is communicated with the inlet of the filter device.

[0011] Preferably, the heating and air exchange device also includes a fan fixing seat and a heating device fixing seat arranged on the top of the fan fixing seat, the upper and lower ends of the fan fixing seat are open, and the lower end thereof is fixed to the lining plate, the exhaust device is fixed inside the fan fixing seat, and the first vent is located at the bottom of the exhaust device, the heating device is a heating ring arranged inside the heating device fixing seat, and an exhaust hole is arranged on the top of the heating device fixing seat, and the exhaust hole is located inside the inner circulation chamber.

[0012] Preferably, the inner circulation hood is an arched hood body arranged outside the heating fixed seat, the inner circulation hood covers the exhaust holes on the top of the heating device fixed seat, the two ends of the bottom of the inner circulation hood are respectively fixed on the lining plate, and the two ends of the bottom of the inner circulation hood are respectively connected to the third vent.

[0013] Preferably, the fan fixing seat is further provided with a guide structure on a side close to the filter device, and the exhaust device is spaced apart from the guide structure, and the guide structure includes a vertical section closely attached to the outer side surface of the filter device, and the top of the vertical section is bent and extended above the exhaust end of the exhaust device to form a first guide section, and the bottom of the vertical section extends into the through hole at the bottom of the side panel to form a second guide section.

[0014] Preferably, a circle of limiting seats for fixing the filter device is also formed in the second cavity, and the limiting seats are arranged along the inner circumferential surface of the second cavity. A circle of limiting grooves is formed on the limiting seats, and gaskets are arranged in the limiting grooves. The filter device is installed on the top of the limiting seat, and the inlet of the filter device is located at the bottom thereof, and the inlet of the filter device is communicated with the through hole.

[0015] Preferably, a filter cover plate is disposed on the top of the second cavity, the air outlet is disposed on the filter cover plate, and the filter cover plate is detachably mounted on the upper shell body.

[0016] Preferably, a third cavity is further provided in the upper shell body, an electric control component is provided in the third cavity, the electric control component comprises at least a PCB controller and a power switch connected to the PCB controller, and the PCB controller is connected to the heating device and the exhaust device through leads respectively.

[0017] The beneficial effects of the technical solution of the present invention are mainly reflected in: 1. By using the reverse hot air circulation method in the kitchen waste treatment device, it is ensured that hot air enters from the water filter hole at the bottom of the inner cylinder, and the air is continuously sucked by the exhaust device to form a negative pressure environment in the inner cylinder, so that the hot air flow contacts and dries the kitchen waste from bottom to top and flows through the pores between the kitchen waste. On the one hand, it is ensured that the hot air heats the kitchen waste evenly in the longitudinal direction. On the other hand, in the process of hot air being sucked from the bottom of the kitchen waste to the top of the kitchen waste under the action of negative pressure, the heating time of the hot air and the kitchen waste is passively increased, thereby further increasing the utilization rate of the hot air.

[0018] 2. A mixing chamber is formed between the inner cylinder and the inner wall of the lower shell. Since the air inlet and the inner circulation chamber are respectively connected to the mixing chamber, the external air and the hot air both converge into the mixing chamber. Affected by the turbulence effect, the hot air is evenly dispersed. Through forced convection, the contact area between the hot air and the surface of the liquid filtered out of the kitchen waste collected at the bottom of the mixing chamber can be effectively increased, thereby improving the evaporation efficiency of the liquid. At the same time, since the external air and the hot air converge in the mixing chamber, the temperature of the air after convergence is ensured to be uniform, and then it is evenly sucked into the inner cylinder through the negative pressure to heat the kitchen waste, and sufficient heat and mass exchange is carried out with the kitchen waste in various areas of the inner cylinder, avoiding uneven heating of the kitchen waste due to local hot air accumulation, and further ensuring the uniformity of heating of the liquid and kitchen waste in the lateral heating area.

[0019] 3. In the kitchen waste treatment device, the exhaust end of the exhaust device is respectively connected to the inlet of the filter device and the heating device, so that part of the air exhausted by the exhaust device enters the filter device, and the other part flows to the heating device for heating, and the air entering the filter device directly flows to the filter device without further heating, which can reduce heat loss, and the hot air heated by the hot air device is accurately guided to the mixing chamber through the inner circulation chamber, and enters the inner cylinder again to heat the kitchen waste. By accurately directing each airflow, the heat loss is minimized and the drying efficiency is further improved.

[0020] 4. In the kitchen waste treatment device, the air duct system formed by the heating and ventilation device and the mixing chamber constitutes a closed chamber with the inner cylinder. The inner cylinder continuously outputs airflow through the exhaust device, thereby forming a negative pressure environment inside the inner cylinder and ensuring that there is sufficient power to make the hot air rise from the bottom of the kitchen waste. At the same time, under the centrifugal force of the exhaust device, the airflow discharged from the exhaust end of the exhaust device has sufficient power to blow toward the inlet of the filter device. In addition, the airflow can be further precisely oriented through the guide structure, thereby guiding the airflow to the inlet of the filter device and being discharged after being filtered by the filter device; therefore, only one air exchange power device (exhaust device) is required in the entire system to realize the synchronous guidance of multiple airflows, without the need to add other additional air exchange power devices.

[0021] 5. In the kitchen waste treatment device, the reasonable position layout of the various devices and accessories set inside it is utilized to form different functional cavities, which effectively guides the internal circulation of the airflow and realizes the precise positioning of each airflow. At the same time, there is no need to design complex air ducts. On the one hand, the spatial layout of the entire device is reasonably utilized to improve the integration of the device, and on the other hand, the additional processing cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a side view of a food waste disposal device; Figure 2 yes Figure 1 Sectional view along AA; Figure 3 yes Figure 2 Schematic diagram of air flow inside and outside the kitchen waste treatment plant; Figure 4 yes Figure 3 Enlarged view of part C; Figure 5 yes Figure 2 Sectional view along BB; Figure 6 yes Figure 5 Schematic diagram of air flow inside and outside the kitchen waste treatment plant; Figure 7 yes Figure 6 A magnified view of part D in the middle; Figure 8 is a top view of a kitchen waste treatment device; Fig. 9 It is a schematic diagram of the liner structure; Fig.10 is a bottom view of the upper shell; Fig.11 It is an exploded schematic diagram of the heating and ventilation device and the lining plate; Fig.12 It is a schematic diagram of the structure of the inner cylinder in a disassembled state when there are two inner cylinders; Fig.13 It is a schematic diagram of a state in which two inner cylinders are stacked in a lower shell body; Fig.14 This is an exploded view of a food waste disposal device. DETAILED DESCRIPTION

[0023] In order to make the purpose, advantages and features of the present invention more clearly and in detail, the following preferred embodiments are used for illustration and explanation. The embodiments are only typical examples of the application of the technical solution of the present invention. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed by the present invention.

[0024] At the same time, it is stated that in the description of the scheme, it should be noted that the directions or positional relationships indicated by the terms "center", "up", "down", "left", "right", "front", "back", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" in this solution are only used for descriptive purposes and cannot be understood as indicating or implying the order of importance, or implicitly indicating the number of technical features shown. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] The present invention discloses a kitchen waste treatment device, such as Figure 1 , Figure 2 As shown, it includes an upper shell 1 and a lower shell 2, and the upper shell 1 is respectively provided with an air inlet 3 and an air outlet 4, the external air enters the upper shell 1 from the air inlet 3, and the air in the kitchen waste treatment device is discharged through the air outlet 4.

[0027] like Figure 2 As shown, the lower shell 2 is provided with an inner cylinder 5 for accommodating kitchen waste, and the bottom of the inner cylinder 5 is provided with a water filter hole 502. Figure 12-14As shown, in some embodiments, two or more inner cylinders 5 can be arranged in the lower shell 2 at the same time, so as to facilitate the replacement of different inner cylinders 5, thereby improving the processing efficiency of kitchen waste, ensuring that when the inner cylinder 5 used last time is cleaned, the kitchen waste treatment device can also work uninterruptedly, and by reasonably adjusting the size of the inner cylinder 5, multiple inner cylinders 5 can be stacked on each other to avoid space occupation. At the same time, the water filter holes 502 at the bottom of the multiple inner cylinders 5 are relatively arranged to avoid the water filter holes 502 of the inner cylinder 5 located inside being blocked. The inner bottom surface of the lower shell 2 A limiting boss 32 is provided on the top, and a limiting hole 503 matching the limiting boss 32 is provided on each inner cylinder 5, and then the limiting boss 32 is fixed in the lower shell body 2 through the cooperation with the limiting hole 503, so as to facilitate the disassembly and assembly of the inner cylinder 5. In one embodiment, two inner cylinders 5 are stacked inside and outside, and handles 501 are also provided on the two inner cylinders 5 respectively. The handle 501 of the larger inner cylinder 5 is arranged on the outside of the inner cylinder 5, and the handle 501 of the smaller inner cylinder 5 is arranged on the inside of the inner cylinder 5, so as to avoid interference between the handles 501.

[0028] like Figure 2-Figure 8As shown, a heating and ventilation device and a filtering device 6 are arranged in the upper shell 1, and the heating and ventilation device includes an inner circulation cover 7, an exhaust device 8 and a heating device 9. The inner circulation cover 7 is formed with an inner circulation cavity 701. The exhaust end of the exhaust device 8 is communicated with the inner part of the inner cylinder 5, so that the air in the inner cylinder 5 is extracted and a negative pressure environment is formed in the inner cylinder 5. The exhaust end of the exhaust device 8 is respectively connected to the inlet of the heating device 9 and the filtering device 6, so that a part of the air exhausted by the exhaust device 8 enters the filtering device 6, and the other part flows out. Heat is applied to the heating device 9, and repeated heating of part of the air / water vapor that needs to be discharged outside the device is avoided by directional diversion, thereby reducing heat loss, wherein the outlet of the filter device 6 is communicated with the air outlet 4, so the air entering the filter device 6 is filtered by the filter device 6 for deodorization and dehydration, and then discharged to the outside of the device through the air outlet 4; the hot air outlet of the heating device 9 is located in the inner circulation cavity 701, the inner cylinder 5 is spaced apart from the inner wall of the lower shell 2, and a mixing cavity 10 is formed on the outer periphery and bottom of the inner cylinder 5, the The inlet of the mixing chamber 10 is connected to the air inlet 3 and the outlet of the inner circulation chamber 701 respectively. The external air entering from the air inlet 3 and the hot air in the inner circulation chamber 701 are all converged into the mixing chamber 10, and enter the inner cylinder 5 from the water filter hole 502 at the bottom of the inner cylinder 5. Since the outlet of the inner circulation chamber 701 is directly connected to the mixing chamber 10, the hot air heated by the heating device 9 forms directional hot air when entering the mixing chamber 10. At the same time, since the inner cylinder 5 is a negative pressure environment, the mixing chamber 10 connected to the inner cylinder 5 is also subjected to negative pressure. The hot air in the mixing chamber 10 and the external air converge in the mixing chamber 10, so that the hot air is evenly dispersed to the surface of the liquid collected at the bottom of the mixing chamber 10. The hot air accelerates the evaporation of water on the surface of the material by forced convection. Subsequently, the hot air and water vapor penetrate into the inner tube 5 from the water filter holes 502 at the bottom of the inner tube 5, and heat the food waste. Affected by the negative pressure environment in the inner tube 5, the hot air rises along the pores in the food waste during the heating process, and evenly heats the food waste.

[0029] like Figure 2 , Figure 4 , Figure 7 , Fig. 9 , Fig.11As shown, in some embodiments, a lining plate 11 is provided at the bottom of the upper shell 1, and the lining plate 11 is located between the upper shell 1 and the lower shell 2. Preferably, the lining plate 11 is fixed to the bottom of the upper shell 1, and is used to support and fix the various components inside the upper shell 1. The lining plate 11 is respectively provided with a first vent 14 for connecting the inner cylinder 5 and the exhaust end of the exhaust device 8, a second vent 15 for connecting the air inlet 3 and the mixing chamber 10, and a third vent 16 for connecting the inner circulation chamber 701 and the mixing chamber 10, so as to ensure air circulation between the inner cylinder 5, the hot air ventilation device and the mixing chamber 10, so that the heated air is mainly circulated in the heating and ventilation device, the mixing chamber 10 and the inner cylinder 5, thereby shortening the flow path of the hot air and reducing heat loss.

[0030] like Figure 2-Figure 8 As shown, in some embodiments, a baffle 12 is further provided at the bottom of the lining 11, and the baffle 12 covers the top of the opening of the inner cylinder 5. The baffle 12 is used to cover the inner cylinder 5 to prevent the air inside the mixing chamber 10 from entering the inner cylinder 5 from the opening at the top of the inner cylinder 5. On the one hand, it prevents hot air from blowing to the kitchen waste from the top, resulting in uneven drying of the kitchen waste. On the other hand, by blocking the opening of the inner cylinder 5, a negative pressure environment in the inner cylinder 5 is ensured, thereby achieving air exchange; wherein, a avoidance hole for avoiding the first vent 14 is provided on the baffle 12, and the avoidance hole is located at the bottom of the first vent 14, thereby preventing the baffle 12 from blocking the first vent 14, so that the exhaust end of the exhaust device 8 continuously extracts air from the inner cylinder 5 through the first vent 14.

[0031] like Figure 2-Figure 7 as well as Fig.10 As shown, in some embodiments, the interior of the upper shell 1 is separated into a first cavity 27 and a second cavity 28 by a side panel, the heating and ventilation device is arranged in the first cavity 27, the air inlet 3 is located at the top of the first cavity 27, the first vent 14, the second vent 15 and the third vent 16 are all located at the bottom of the first cavity 27, the filter device 6 is arranged in the second cavity 28, and a through hole 22 is also provided at the bottom of the side panel between the second cavity 28 and the first cavity 27, the through hole 22 is communicated with the inlet of the filter device 6, thereby ensuring that the filter device 6 in the second cavity 28 only enters the air through the through hole 22, thereby realizing precise directional diversion.

[0032] like Figure 2-Figure 7 as well as Fig.11 , Fig.14As shown, in some embodiments, the heating and ventilation device further includes a fan fixing seat 18 and a heating device fixing seat 19 arranged on the top of the fan fixing seat 18, the upper and lower ends of the fan fixing seat 18 are open, and the lower end thereof is fixed on the lining plate 11, and the exhaust device 8 is fixed inside the fan fixing seat 18. In one embodiment, the exhaust device 8 is a centrifugal fan, the exhaust end of the exhaust device 8 is located at the bottom thereof, and the exhaust end of the exhaust device 8 is located at the top thereof, the first vent 14 is located at the bottom of the exhaust device 8, and It is arranged opposite to the exhaust end of the exhaust device 8; wherein the heating device 9 is a heating coil arranged inside the heating device fixing seat 19. In a preferred embodiment, the heating coil is arranged at intervals on the top of the exhaust port of the exhaust device 8, and the heating device fixing seat 19 is a protective cover covering the outside of the heating coil. An exhaust hole 13 is arranged on the top of the heating device fixing seat 19, and the exhaust hole 13 is located inside the inner circulation cavity 701, so that the air heated by the heating coil is directly guided into the inner circulation cavity 701.

[0033] like Figure 2 , Figure 5 As shown, in one embodiment, the heating device 9 further includes a temperature sensor 17, and the temperature sensor 17 is fixed in the heating device fixing seat 19, and is used for real-time sensing of nearby temperature.

[0034] Among them, the fixing method between the above-mentioned fan fixing seat 18 and the lining plate 11, the fixing method between the exhaust device 8 and the fan fixing seat 18, the fixing method between the heating device fixing seat 19 and the fan fixing seat 18, and the fixing method between the heating device 9 and the heating device fixing seat 19 can all refer to the existing fixing methods, such as mechanical fixing methods such as bolts and pins. In addition, when the above-mentioned structures are fixed by bolts, a buffer protection structure can also be simultaneously set, such as a rubber sleeve, a rubber gasket 26, etc. This is the existing technology and will not be elaborated.

[0035] like Figure 5 , Figure 6 , Fig.11 , Fig.14 As shown, in one embodiment, the inner circulation hood 7 is an arched hood body arranged outside the heating fixed seat, and the inner circulation hood 7 covers the exhaust hole 13 on the top of the heating device fixed seat 19. The two ends of the bottom of the inner circulation hood 7 are respectively fixed on the lining plate 11, and the two ends of the bottom of the inner circulation hood 7 are respectively connected to the third vent 16. Therefore, after the hot air heated by the heating device 9 enters the interior of the inner circulation hood 7 through the exhaust hole 13 on the top, two uniform diversions are formed, and synchronously enter the mixing chamber 10 through the third vent 16 at the two ends of the bottom of the inner circulation hood 7.

[0036] like Figure 3 , Figure 4 , Fig.11 As shown, in a preferred embodiment, the fan fixing seat 18 is further provided with a guide structure 20 on a side close to the filter device 6, the exhaust device 8 and the guide structure 20 are arranged at intervals, and then a guide channel 21 is formed at the interval between the exhaust device 8 and the guide structure 20, and the guide structure 20 includes a vertical section 2001 closely attached to the outer side of the filter device 6, and the top of the vertical section 2001 is bent and extended above the exhaust end of the exhaust device 8 to form a first guide section 2002, and the first guide section 2002 It is used to guide part of the air at the exhaust end of the top of the exhaust device 8 into the guide channel 21 between the exhaust device 8 and the guide structure 20. The bottom of the vertical section 2001 extends to the through hole 22 at the bottom of the side panel, and forms a second guide section 2003. The second guide section 2003 is used to guide the air inside the guide channel 21 into the through hole 22. Since the through hole 22 is connected to the inlet of the filter device 6, the air in the guide channel 21 passes through the through hole 22 and enters the filter device 6 for deodorization and dehumidification filtration.

[0037] like Figure 2-Figure 6 As shown, in the actual working process, the exhaust device 8 is first turned on, and the exhaust device 8 continuously extracts the air in the inner tube 5 to form a negative pressure environment in the inner tube 5. At the same time, the exhaust device 8 diverts the extracted air to the guide channel 21 and the heating device 9 in a directional manner. Part of the air entering the guide channel 21 is filtered by the filter device 6 and then discharged from the air outlet 4. The air entering the heating device 9 is heated by the heating device 9 to form hot air, and enters the inner circulation chamber 701 from the exhaust hole 13. Subsequently, the hot air in the inner circulation chamber 701 enters the mixing chamber 10 through the third vent 16. The mixing chamber 10 is affected by the negative pressure of the inner cylinder 5, and hot air is continuously input into the inner cylinder 5 through the water filter hole 502. At the same time, since the mixing chamber 10 is connected with the air inlet 3, the external air is also affected by the negative pressure, and enters the mixing chamber 10 through the second ventilation hole, and after merging with the hot air, the hot air is dispersed and the liquid filtered out from the bottom of the mixing chamber 10 is evenly heated. The hot air entering the inner cylinder 5 rises along the pores of the kitchen waste under the action of the negative pressure of the inner cylinder 5, and after evenly heating the kitchen waste, it carries moisture and enters the exhaust device 8 again from the first ventilation port 14.

[0038] In one embodiment, the filter device 6 is a carbon box, the filter inlet of the carbon box is arranged at its bottom, and the filter outlet is arranged at its top. Since the air discharged by the exhaust device 8 carries water vapor after the water evaporates from the kitchen waste, it is initially drained and cooled after passing through the guide channel 21, and then enters the filter device 6 to absorb moisture and deodorize. This gradient discharge method can reduce the moisture content of the air from the initial 91.9% to 8.1%.

[0039] like Figure 2-Figure 4 as well as Fig.14 As shown, in one embodiment, a circle of limiting seats 25 for fixing the filter device 6 is further formed in the second cavity 28, and the limiting seats 25 are arranged along the inner circumference of the second cavity 28. A circle of limiting grooves is formed on the limiting seats 25, and a gasket 26 is arranged in the limiting groove. The gasket 26 is preferably made of an elastic and flexible material, such as a rubber gasket 26. The filter device 6 is installed on the top of the limiting seat 25, and the inlet of the filter device 6 is located at the bottom thereof, and the inlet of the filter device 6 is communicated with the through hole 22. The limiting seat 25 is fixed to the bottom edge of the filter device 6 and will not block the inlet at the bottom of the filter device 6. At the same time, the filter device 6 is fixed on the limit seat 25, so that a height spacing space is formed between the inlet at the bottom of the filter device 6 and the lining plate 11, thereby ensuring that the air entering the second cavity 28 from the through hole 22 can flow from the spacing space to the inlet of the filter device 6. In a preferred embodiment, a confluence cavity 23 is formed in the limit seat 25, and a confluence port 24 connected to the through hole 22 is provided on the limit seat 25, and the inlet of the filter device 6 is located at the top of the confluence cavity 23. The filter device 6 is a carbon box, and the inlet of the filter device 6 is a filter hole arranged at the bottom of the carbon box, and the carbon box is filled with activated carbon.

[0040] like Figure 8 , Fig.14 The air outlet 4 is arranged on the filter cover 36, and the filter cover 36 is detachably mounted on the upper shell 1, so that the filter device 6 can be replaced. The installation method of the filter cover 36 and the upper shell 1 can refer to the existing technology, such as snap connection or fixing by setting a limit mechanism, etc., which will not be elaborated here; when the filter device 6 needs to be replaced, the filter cover 36 is opened and the filter device 6 is pressed. Since the gasket 26 at the bottom of the filter device 6 is made of elastic material, the filter device 6 can be taken out by rebounding after being pressed, which is convenient for cleaning the carbon box or replacing the activated carbon in the carbon box.

[0041] like Figure 2 , Fig.10 , Fig.14As shown, in one embodiment, a third cavity 29 is further provided in the upper shell 1, and an electric control component is provided in the third cavity 29. The electric control component at least includes a PCB controller 30 and a power switch 31 connected to the PCB controller 30. The PCB controller 30 is respectively connected to the heating device 9 and the exhaust device 8 through leads. Specifically, a lead hole can be opened in the third cavity 29 to facilitate the entry of the lead. The wiring method of the heating device 9 and the exhaust device 8 and the electric control component can refer to the existing technology and will not be repeated here.

[0042] like Figure 2 , Fig.14 As shown, in a preferred embodiment, an LED light source is arranged in the control unit, and the LED light source is fixed on the lining plate 11, wherein the lining plate 11 and the baffle plate 12 are both provided with an LED light avoidance hole 35, and the LED light source comprises an LED lamp 34 and an LED lamp cover, and the LED lamp cover is fixed in the LED lamp avoidance hole 35, so that the light beam emitted by the LED lamp 34 can pass through the LED lamp cover to irradiate the inner tube 5, and the lead wire of the LED lamp 34 is connected to the PCB controller 30, so that the PCB controller 30 controls the start and stop of the LED lamp 34; in addition, as Figure 1 , Figure 3 , Figure 8 , Fig.14 As shown, a perspective window 33 may be further provided between the upper shell 1 and the lower shell 2 , and the baffle 12 and the perspective window 33 are both made of transparent material, so that the user can observe the drying condition in the inner drum 5 in real time.

[0043] There are many implementation methods of the present invention, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A kitchen waste treatment device, comprising an upper shell and a lower shell, wherein the upper shell is provided with an air inlet and an air outlet respectively, and the lower shell is provided with an inner cylinder for accommodating kitchen waste, and the bottom of the inner cylinder is provided with a water filter hole, characterized in that: A heating and air exchange device and a filtering device are arranged in the upper shell body, and the heating and air exchange device comprises an inner circulation hood, an exhaust device and a heating device, an inner circulation chamber is formed inside the inner circulation hood, the exhaust end of the exhaust device is communicated with the interior of the inner cylinder, and the exhaust end of the exhaust device is respectively connected to the inlet of the heating device and the filtering device, so that a part of the air exhausted by the exhaust device enters the filtering device, and the other part flows to the heating device for heating, the outlet of the filtering device is communicated with the air outlet, the hot air outlet of the heating device is located in the inner circulation chamber, the inner cylinder is spaced apart from the inner wall of the lower shell body, and a mixing chamber is formed on the outer periphery and bottom of the inner cylinder, the inlet of the mixing chamber is respectively connected to the air inlet and the outlet of the inner circulation chamber, the external air entering from the air inlet and the hot air in the inner circulation chamber are both converged into the mixing chamber, and enter the inner cylinder from the water filter hole.

2. The kitchen waste treatment device according to claim 1, characterized in that: A lining plate is provided at the bottom of the upper shell, and the lining plate is located between the upper shell and the lower shell. The lining plate is respectively provided with a first vent for connecting the inner cylinder and the exhaust end of the exhaust device, a second vent for connecting the air inlet and the mixing chamber, and a third vent for connecting the inner circulation chamber and the mixing chamber.

3. The kitchen waste treatment device according to claim 2, characterized in that: A baffle is also provided at the bottom of the liner, and the baffle covers the top of the opening of the inner tube. The baffle is provided with an avoidance hole for avoiding the first vent, and the avoidance hole is located at the bottom of the first vent.

4. The kitchen waste treatment device according to claim 3, characterized in that: The interior of the upper shell is separated into a first cavity and a second cavity by a side panel, the heating and air exchange device is arranged in the first cavity, the air inlet is located at the top of the first cavity, the first vent, the second vent and the third vent are all located at the bottom of the first cavity, the filter device is arranged in the second cavity, and a through hole is also provided at the bottom of the side panel between the second cavity and the first cavity, and the through hole is communicated with the inlet of the filter device.

5. The kitchen waste treatment device according to claim 4, characterized in that: The heating and air exchange device also includes a fan fixing seat and a heating device fixing seat arranged on the top of the fan fixing seat, the upper and lower ends of the fan fixing seat are open, and the lower end thereof is fixed to the lining plate, the exhaust device is fixed inside the fan fixing seat, and the first vent is located at the bottom of the exhaust device, the heating device is a heating ring arranged inside the heating device fixing seat, and an exhaust hole is arranged on the top of the heating device fixing seat, and the exhaust hole is located inside the inner circulation chamber.

6. The kitchen waste treatment device according to claim 5, characterized in that: The inner circulation cover is an arched cover body arranged outside the heating fixed seat. The inner circulation cover covers the exhaust holes on the top of the heating device fixed seat. The two ends of the bottom of the inner circulation cover are respectively fixed on the lining plate, and the two ends of the bottom of the inner circulation cover are respectively connected to the third ventilation port.

7. The kitchen waste treatment device according to claim 4, characterized in that: The fan fixing seat is also provided with a guide structure on the side close to the filter device, and the exhaust device is spaced apart from the guide structure. The guide structure includes a vertical section closely attached to the outer side surface of the filter device, and the top of the vertical section is bent and extended above the exhaust end of the exhaust device to form a first guide section, and the bottom of the vertical section extends into the through hole at the bottom of the side panel to form a second guide section.

8. The kitchen waste treatment device according to claim 7, characterized in that: A circle of limiting seats for fixing the filter device is also formed in the second cavity, and the limiting seats are arranged along the inner circumferential surface of the second cavity. A circle of limiting grooves is formed on the limiting seats, and gaskets are arranged in the limiting grooves. The filter device is installed on the top of the limiting seat, and the inlet of the filter device is located at the bottom thereof, and the inlet of the filter device is communicated with the through hole.

9. The kitchen waste treatment device according to claim 8, characterized in that: A filter cover plate is disposed on the top of the second cavity, the air outlet is disposed on the filter cover plate, and the filter cover plate is detachably mounted on the upper shell body.

10. The kitchen waste treatment device according to claim 4, characterized in that: A third cavity is also provided in the upper shell body, and an electric control component is provided in the third cavity. The electric control component at least includes a PCB controller and a power switch connected to the PCB controller. The PCB controller is connected to the heating device and the exhaust device through leads.

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