Kitchen waste dryer

Abstract

The kitchen waste drying machine comprises a machine shell, an inner container is connected to the interior of the machine shell, an upward cavity is defined by the inner container, the top side of the machine shell is connected with a top cover covering the cavity, an air supplementing hole communicated with the cavity is formed in the top cover, and an exhaust hole is formed in the side wall of the machine shell; the first heater is connected to the bottom side of the inner container; the hot air assembly comprises an air guide shell, a first fan, a second heating source and a second fan, an air suction connector, an air return connector and an exhaust connector are formed in the outer side of the air guide shell, the air suction connector and the air return connector are connected to the inner container, the first fan is connected to the outer side of the air guide shell, and the second heating source is connected to the interior of the air guide shell; according to the kitchen waste drying treatment device, rapid temperature rise during kitchen waste drying treatment is achieved, the temperature loss in the inner container during exhaust is effectively reduced, energy consumption is reduced, and the kitchen waste drying treatment efficiency is improved.

Description

Technical Field

[0001] The invention relates to waste treatment equipment, in particular to a kitchen waste drying machine. Background Art

[0002] In order to facilitate the recycling of food waste, some food waste dryers are now available on the market. When food waste needs to be recycled, the food waste can be put into the food waste machine first, and the food waste dryer can be used to stir and dry the food waste. This can effectively solve the problems of dripping and large volume of food waste during recycling. In the current food waste dryer, in order to dry the food waste, hot air is generally input to heat the inside of the food waste dryer, and the hot air is directly discharged to the outside after flowing inside. This heating method has low heating efficiency, resulting in a long drying time for the food waste and high energy consumption. Therefore, a food waste dryer with higher heating and drying efficiency is urgently needed. Summary of the invention

[0003] The object of the present invention is to provide a kitchen waste drying machine to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the present invention to solve its technical problem is:

[0005] A kitchen waste dryer comprises: a casing, an inner tank is connected therein, the inner tank is surrounded by a cavity arranged upward, a top cover covering the cavity is connected to the top side of the casing, an air supply hole connected to the cavity is arranged on the top cover, and an exhaust hole is arranged on the side wall of the casing; a first heater is connected to the bottom side of the inner tank, and the first heater is used to heat the inner tank; a hot air component comprises an air guide housing, a first fan, a second heating source and a second fan, the air guide housing is located in the casing, an air intake interface, an air return interface and an exhaust interface are formed on the outside of the air guide housing, the air intake interface and the air return interface are respectively connected to the inner tank, the first fan is connected to the outside of the air guide housing, the first fan is used to form an air flow flowing from the air intake interface to the air return interface, the second heating source is connected to the air guide housing, the air guide housing is used to heat the air flow flowing out of the air return interface, the second fan is connected to the exhaust interface, and the second fan is used to form an air flow flowing from the exhaust interface to the exhaust hole.

[0006] The technical solution has at least the following beneficial effects: the cavity formed by the inner tank is used to place the food waste that needs to be processed, and the cavity is covered and closed by the top cover. When working, the first heater heats from the bottom side of the inner tank and directly heats from the bottom of the cavity to quickly heat the food waste at the bottom of the cavity. The first fan and the second fan in the hot air component work to inhale gas from the cavity through the air intake interface, and part of the gas enters the air guide shell from the air intake interface and is then re-sent into the cavity from the air return interface. In this process, the second heating source is used to heat the gas re-sent into the cavity, and part of the gas enters the air guide shell from the air intake interface. It is sent out from the exhaust interface and discharged out of the casing from the exhaust hole, so that the water vapor in the cavity is taken away to the outside, and the outside air can enter the cavity from the air supply hole to maintain the air pressure balance in the cavity. In this way, the hot air heating and direct heating of the inner tank can be used to achieve rapid temperature rise during the drying process of the food waste, and the upper and lower sides of the cavity are heated at the same time, which can make the heating of the food waste inside the cavity more uniform. In addition, the hot air component heats part of the air in the cavity for circulation and partially takes away the water vapor for discharge, which effectively reduces the temperature loss inside the inner tank during exhaust, reduces energy consumption, and improves the drying efficiency of the food waste.

[0007] As a further improvement of the above technical solution, the air guide shell includes an intake duct, a return duct and an exhaust duct. One end of the intake duct, one end of the return duct and one end of the exhaust duct are interconnected. The other end of the intake duct and the other end of the return duct are respectively connected to the top of the inner tank, and the other end of the exhaust duct extends downward. The air guide shell includes three parts for guiding gas, namely, the intake duct, the return duct and the exhaust duct. When the first fan is working, the intake duct is connected to one end of the inner tank and inhales gas from the cavity. Part of the gas flows into the return duct along the intake duct, and is pumped and pressurized by the first fan and input into the cavity from the return duct. When the second fan is working, part of the gas inhaled from the intake duct enters the exhaust duct to realize diversion from the gas re-entering the cavity. After being pumped and pressurized by the second fan, the gas is transported to the exhaust hole. This is conducive to diverting gases in different directions and reducing mutual interference.

[0008] As a further improvement of the above technical solution, a boss is formed on the bottom side of the top cover, and the boss extends downward and blocks the air intake interface and the air return interface. A guide groove is arranged at the position of the boss opposite to the air intake interface, and the guide groove penetrates downward through the bottom side of the boss. A guide pipe is arranged in the boss, and one end of the guide pipe is connected to the outside of the boss and opposite to the air intake interface, and the other end of the guide pipe is connected to the bottom side of the boss. After the top cover blocks and closes the upper part of the cavity, the boss on its bottom side also directly blocks the air intake interface and the air return interface. At this time, when air is inhaled from the cavity, the gas in the cavity needs to be guided by the guide groove from bottom to top and then enter the air guide shell from the air intake interface. When air is blown into the cavity, the gas in the cavity is output from the air return interface and then flows into the guide pipe. After the guide pipe guides the gas, it is output from the bottom side of the boss to the cavity. At this time, the airflow input into the cavity directly diffuses downward. In this way, the guide groove and the guide pipe are used to change the direction of air intake and air outlet from the cavity, which is conducive to avoiding the phenomenon that the airflow output from the air return interface is directly inhaled from the air intake interface, thereby improving the efficiency of hot air heating the inside of the cavity.

[0009] As a further improvement of the above technical solution, the end of the guide tube connected to the bottom side of the boss is used as the air outlet, and the guide groove and the air outlet are respectively located on both sides of the center of the top cover. The position for sucking air from the cavity and the position for blowing air into the cavity are respectively located on both sides of the center of the top cover, and by increasing the straight-line distance between the two, the mutual influence of the rising airflow and the falling airflow is further reduced, which is conducive to the formation of a hot air flow circulation with a larger influence range inside the cavity, thereby further improving the heating effect of the kitchen waste.

[0010] As a further improvement of the above technical solution, a limiting step is provided on the inner side of the top of the cavity, the limiting step extends around the cavity, and the boss abuts against the limiting step. The limiting step can support and limit the top cover itself, which not only improves the stability of the top cover installation, but also improves the sealing of the top cover when covering and closing the cavity, and can further reduce the mutual influence of air intake and air outlet, and improve the circulation efficiency of airflow in the cavity.

[0011] As a further improvement of the above technical solution, the inner side wall of the housing provided with the exhaust hole is connected to a filter housing, the air outlet end of the second fan is connected to the filter housing, a filter baffle is provided in the filter housing opposite to the exhaust hole, the filter baffle separates the inside of the filter housing in a direction away from the exhaust hole to form a clean air cavity and a filter cavity, and the second fan is connected to the filter cavity. The second fan pumps the gas in the air guide housing into the filter housing. At this time, the gas needs to be filtered by the filter baffle before entering the clean air cavity and being discharged from the exhaust hole. In this way, the gas is purified by odor absorption by the filter baffle, reducing the air pollution to the surrounding environment when discharged outward, and further improving the user experience.

[0012] As a further improvement of the above technical solution, a mounting platform protruding away from the exhaust hole is formed on one side of the bottom of the filter housing away from the exhaust hole, the second fan is connected to the top side of the mounting platform, a drain board is provided in the filter chamber below the second fan, the drain board extends obliquely downward in a direction away from the second fan, a drain pipe is connected to the inclined end position of the filter housing opposite to the drain board, and the drain pipe is connected to the side wall of the casing. The mounting platform formed by the protrusion to one side at the bottom of the casing is used to install the second fan. When the second fan inputs air flow to the filter housing, the air flow blows directly downward to the drain plate, and the air flow first diffuses to the bottom position of the filter housing. Part of the water vapor in the air flow condenses and accumulates at the bottom of the filter housing. After the air flow is bent by the drain plate, the air flow enters the filter chamber upward again, and the filter partition absorbs and purifies the air flow and then discharges it to the exhaust hole. When the water in the filter housing needs to be discharged, it can be discharged from the housing through the drain pipe. The inclined drain plate can speed up the water discharge efficiency and reduce the phenomenon of water accumulation inside the filter housing. In this way, by arranging a guide structure for bending the gas from bottom to top inside the filter housing, the water content of the exhaust gas can be better reduced, and the condensed water can be collected conveniently.

[0013] As a further improvement of the above technical solution, the two side walls facing each other in the filter cavity are staggeredly provided with multiple windshields in the up-down direction. The multiple windshields divide the space inside the filter cavity into multiple areas in the up-down direction. At this time, after the gas enters the filter cavity, it needs to flow upward along the multiple windshields to block and guide the gas, thus increasing the flow distance of the gas in the filter cavity, thereby increasing the contact time with the filter partition, and using the filter partition to further improve the odor absorption and purification effect of the gas.

[0014] As a further improvement of the above technical solution, the first heater is detachably connected to the bottom side of the cavity. The first heater is installed in the cavity and can directly heat the food waste entering the cavity. After long-term use, the first heater can be directly disassembled and assembled in the cavity, thereby improving the convenience of use and maintenance.

[0015] As a further improvement of the above technical solution, the top cover is rotatably connected to the top side of the housing, and the top cover can open or close the cavity. The top cover opens or closes the cavity by rotating, so as to put food waste into the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0017] Figure 1 It is an overall front view of the present invention.

[0018] Figure 2 yes Figure 1 Schematic diagram of the AA cross-section structure.

[0019] Figure 3 It is a stereoscopic diagram of the hot air assembly and the filter housing of the present invention.

[0020] Figure 4 It is a three-dimensional diagram of the filter housing of the present invention after removing the filter partition.

[0021] Figure 5 It is a top cover wire frame diagram of the present invention.

[0022] In the accompanying drawings: 100-casing, 110-inner tank, 120-top cover, 121-boss, 122-guide groove, 123-guide pipe, 130-exhaust hole, 140-limiting step, 200-first heater, 210-air guide shell, 211-intake interface, 212-return air interface, 213-intake air duct, 214-return air duct, 215-exhaust air duct, 220-first fan, 230-second fan, 300-filter shell, 310-filter partition, 320-clean air cavity, 330-filter cavity, 340-mounting table, 350-drain board, 360-wind shield. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] Reference Figure 1 , Figure 2 and Figure 3 A kitchen waste drying machine includes a housing 100, a first heater 200 and a hot air assembly, wherein an inner tank 110 is connected to the interior of the housing 100, the inner tank 110 is surrounded by a cavity arranged upward, a top cover 120 covering the cavity is connected to the top side of the housing 100, and an air supply hole connected to the cavity is arranged on the top cover 120. In practical applications, a one-way valve can be installed at the air supply hole of the top cover 120 so that only airflow into the cavity can be formed from the air supply hole. The side wall of the housing 100 is provided with an exhaust hole 130, and the number of the exhaust holes 130 is multiple, and the multiple exhaust holes 130 are arranged in the up and down direction and in the direction surrounding the housing 100, so as to increase the exhaust efficiency; the first heater 200 is connected to the bottom side of the inner tank 110, and the first heater 200 is used to heat the inner tank 110; the hot air component includes an air guide shell 210, a first fan 220, a second heating source and a second fan 230, and the air guide shell 210 is located in the housing 100, the air intake interface 211, the air return interface 212 and the exhaust interface are formed on the outside of the air guide shell 210, the air intake interface 211 and the air return interface 212 are respectively connected to the inner liner 110, the first fan 220 is connected to the outside of the air guide shell 210, the first fan 220 is used to form an airflow flowing from the air intake interface 211 to the air return interface 212, the second heating source is connected to the air guide shell 210, and the air guide shell 210 is used to The airflow flowing out from the return air interface 212 is heated. The second fan 230 is connected to the exhaust interface. The second fan 230 is used to form an airflow flowing from the exhaust interface to the exhaust hole 130. In order to reduce the amount of food waste entering the air guide shell 210 from the intake interface 211 and the return air interface 212, in actual applications, a protective grille is installed at the intake interface 211 and the return air interface 212 in the air guide shell 210, which can play a role in shielding and ventilating the food waste.

[0028] As can be seen from the above, the cavity formed by the inner tank 110 is used to place the food waste that needs to be processed, and the cavity is covered and closed by the top cover 120. When working, the first heater 200 heats from the bottom side of the inner tank 110, directly heats from the bottom of the cavity, and quickly heats the food waste located at the bottom of the cavity. The first fan 220 and the second fan 230 in the hot air component work, and gas is sucked from the cavity through the air intake interface 211. Part of the gas enters the air guide shell 210 from the air intake interface 211 and is then re-sent into the cavity from the air return interface 212. In this process, the second heating source is used to heat the gas re-sent into the cavity, and part of the gas enters the air guide shell 210 from the air intake interface 211. The shell 210 is then sent out from the exhaust interface and discharged from the exhaust hole 130 to the outside of the casing 100, so that the water vapor in the cavity is taken away to the outside, and the outside air can enter the cavity from the air replenishment hole to maintain the air pressure balance in the cavity. In this way, the food waste is dried by heating with hot air and directly heating the inner tank 110, and the upper and lower sides of the cavity are heated at the same time, which can make the food waste inside the cavity heated more evenly. In addition, the hot air component heats part of the air in the cavity for circulation and partially takes away the water vapor for discharge, which effectively reduces the temperature loss inside the inner tank 110 during exhaust, reduces energy consumption, and improves the drying efficiency of the food waste.

[0029] The first heating source and the second heating source are both electrical components for heating, and their structures have various forms. For example, the first heating source and the second heating source can both be electric heating plates, quartz heaters, ceramic heaters or PTC heating elements.

[0030] As a matter of course, a structure for stirring food waste is provided in the inner tank 110. For example, a driving motor is provided in the casing 100. A stirring paddle is rotatably connected to the bottom side of the cavity. The bottom end of the stirring paddle passes downwardly out of the inner tank 110. The driving motor drives the stirring paddle, and the stirring paddle is driven to rotate along the axis in the up-and-down direction in the cavity. A fixed knife is connected to the inner side of the cavity. The fixed knife and the stirring paddle are staggered with each other. When working, the stirring paddle rotates to stir the food waste in the cavity, driving the food waste to hit the fixed knife. When the stirring paddle passes through the fixed knife, the food waste between the stirring paddle and the fixed knife is subjected to shear force and is sheared apart, thereby cutting the food waste apart.

[0031] The air guide shell 210 can be a regular box structure. At this time, the gas entering the air guide shell 210 is diverted in the air guide shell 210 under the suction of the first fan 220 and the second fan 230. In order to reduce the formation of vortices inside the air guide shell 210 when the gas inside the air guide shell 210 is diverted due to suction in different directions, so that the air guide shell 210 itself produces surge, the air guide shell 210 is designed with multiple independent air ducts to improve the structural stability of the air guide shell 210. Specifically, the air guide shell 210 includes an intake duct 213, a return air duct 214 and an exhaust duct 215. One end of the intake duct 213, one end of the return air duct 214 and one end of the exhaust duct 215 are connected to each other, the other end of the intake duct 213 and the other end of the return air duct 214 are respectively connected to the top of the inner liner 110, and the other end of the exhaust duct 215 extends downward. The air guide shell 210 includes three parts for guiding gas, namely, an intake duct 213, a return air duct 214 and an exhaust duct 215. When the first fan 220 is working, the intake duct 213 is connected to one end of the inner liner 110 and inhales gas from the cavity. Part of the gas flows into the return air duct 214 along the intake duct 213, and is pumped and pressurized by the first fan 220, and is input into the cavity from the return air duct 214; when the second fan 230 is working, part of the gas inhaled from the intake duct 213 enters the exhaust duct 215, thereby realizing diversion from the gas re-entering the cavity, and is pumped and pressurized by the second fan 230 and then transported to the exhaust hole 130, which is conducive to diverting gases in different directions and reducing mutual interference.

[0032] In the above embodiment, after the gas is input into the cavity from the return air interface 212, the gas will diffuse to the surroundings at the return air interface 212. When there is suction at the intake interface 211, part of the gas diffused to the surroundings will be directly re-inhaled into the air guide shell 210 from the intake interface 211. However, due to the overall volume, the air guide shell 210 is only located on one side of the liner 110. The air guide shell 210 is connected to the intake interface 211 of the liner 110 and the interval between the return air interface 212 is limited. In order to further improve the utilization rate of hot air, as shown in FIG. Figure 5As shown, in the present embodiment, a boss 121 is formed on the bottom side of the top cover 120, and the boss 121 extends downward and blocks the air intake interface 211 and the air return interface 212, and a guide groove 122 is provided on the boss 121 opposite to the air intake interface 211, and the guide groove 122 passes downward through the bottom side of the boss 121, and a guide pipe 123 is provided in the boss 121, one end of the guide pipe 123 is connected to the outside of the boss 121 and opposite to the air intake interface 211, and the other end of the guide pipe 123 is connected to the bottom side of the boss 121. After the top cover 120 blocks and closes the upper part of the cavity, the boss 121 on its bottom side also directly blocks the air intake interface 211 and the air return interface 212. At this time, when air is inhaled from the cavity, the gas in the cavity needs to pass through the guide groove 122 from bottom to top and then enter the air guide shell 210 from the air intake interface 211. When air is blown into the cavity, the gas in the cavity is output from the air return interface 212 and then flows into the guide pipe 123. After the guide pipe 123 guides the gas, it is output from the bottom side of the boss 121 to the cavity. At this time, the airflow input into the cavity directly diffuses downward. In this way, the guide groove 122 and the guide pipe 123 are used to change the direction of air intake and air outlet from the cavity, which is conducive to avoiding the phenomenon that the airflow output from the air return interface 212 is directly inhaled from the air intake interface 211, thereby improving the efficiency of hot air heating the inside of the cavity.

[0033] The boss 121 and the top cover 120 can be an integral structure or a structure that can be disassembled from each other. When the boss 121 and the top cover 120 are structures that can be disassembled from each other, the guide groove 122 is directly formed on the bottom side of the boss 121, and after the guide tube 123 is installed on the bottom side of the top cover 120, the boss 121 and the top cover 120 are connected to each other, thereby facilitating the installation of the guide tube 123.

[0034] In order to better form a circulating airflow in the cavity, in this embodiment, the end of the guide tube 123 connected to the bottom side of the boss 121 is used as the air outlet, and the guide groove 122 and the air outlet are respectively located on both sides of the center of the top cover 120. The position for sucking air from the cavity and the position for blowing air into the cavity are respectively located on both sides of the center of the top cover 120. By increasing the straight-line distance between the two, the mutual influence of the ascending airflow and the descending airflow is further reduced, which is conducive to forming a hot airflow circulation with a larger influence range inside the cavity, thereby further improving the heating effect of the kitchen waste.

[0035] After the top cover 120 covers and closes the top of the cavity, in order to further increase the sealing effect of the top cover 120 on the cavity, an elastic sealing ring can be added to the outside of the boss 121, and the outer periphery of the elastic sealing ring abuts against the inner side of the liner 110. In this embodiment, a limiting step 140 is provided on the inner side of the top of the cavity, and the limiting step 140 extends around the cavity, and the boss 121 abuts against the limiting step 140. The limiting step 140 can support and limit the top cover 120 itself, which not only improves the stability of the installation of the top cover 120, but also improves the sealing performance of the top cover 120 when covering and closing the cavity, and can further reduce the mutual influence of air intake and air discharge, and improve the circulation efficiency of airflow in the cavity.

[0036] The gas exhausted from the second fan 230 can be blown out directly from the exhaust hole 130. However, since the kitchen waste itself has an odor and the blown gas will carry dried water vapor, in order to reduce pollution to the surrounding environment, in the present embodiment, the housing 100 is provided with an inner side wall of the exhaust hole 130 connected to a filter housing 300, an air outlet end of the second fan 230 is connected to the filter housing 300, a filter baffle 310 is provided in the filter housing 300 at a position opposite to the exhaust hole 130, the filter baffle 310 divides the interior of the filter housing 300 in a direction away from the exhaust hole 130 to form a clean air cavity 320 and a filter cavity 330 in sequence, the second fan 230 and the filter cavity 330 are connected to each other, the filter baffle 310 is a plate structure that can be used to filter, adsorb and purify the gas, for example, an activated carbon filter plate, a primary filter plate or a medium filter plate, etc., or a plurality of different plates can be used in combination. The second fan 230 draws the gas in the air guide shell 210 into the filter shell 300. At this time, the gas needs to be filtered by the filter baffle 310 first, and then enter the clean air cavity 320, and be discharged outward from the exhaust hole 130. In this way, the gas is purified by odor absorption by the filter baffle 310, which reduces the air pollution to the surrounding environment when discharged outward, and further improves the user experience.

[0037] The second fan 230 can blow gas directly from the side of the filter housing 300 away from the exhaust hole 130. In the present embodiment, a mounting platform 340 protruding in a direction away from the exhaust hole 130 is formed on the side of the bottom of the filter housing 300 away from the exhaust hole 130. The second fan 230 is connected to the top side of the mounting platform 340. A drain plate 350 is provided below the second fan 230 in the filter chamber 330. The drain plate 350 extends obliquely downward in a direction away from the second fan 230. A drain pipe is connected to the inclined end position of the filter housing 300 facing the drain plate 350. The drain pipe is connected to the side wall of the casing 100. In actual applications, a switch valve may be provided in the drain pipe, and the switch valve is used to control the drain pipe to drain water outward, or a plugging head may be directly connected to the end position of the drain pipe connected to the casing 100 to plug the drain pipe through the plugging head. The mounting platform 340 formed by the protrusion to one side at the bottom of the casing 100 is used to install the second fan 230. When the second fan 230 inputs air flow to the filter housing 300, the air flow blows directly downward toward the drain plate 350, and the air flow first diffuses to the bottom position of the filter housing 300. Part of the water vapor in the air flow condenses and accumulates at the bottom of the filter housing 300. After the air flow is deflected by the drain plate 350, the air flow enters the filter cavity 330 upward, and the filter partition 310 absorbs and purifies the air flow and then discharges it to the exhaust hole 130. When the water in the filter housing 300 needs to be discharged, it can be discharged from the casing 100 through the drain pipe. The inclined drain plate 350 can speed up the water discharge efficiency and reduce the phenomenon of water accumulation inside the filter housing 300. In this way, by providing a guide structure for deflecting the gas from bottom to top inside the filter housing 300, the water content of the exhaust gas can be better reduced, and the condensed water can be collected conveniently.

[0038] In order to increase the flow path of the gas in the filter chamber 330, as shown in FIG. Figure 4As shown, in the present embodiment, two side walls facing each other in the filter cavity 330 are respectively provided with a plurality of wind shields 360 staggered along the up-down direction. For example, the filter partition 310 separates the interior of the filter housing 300 along the front-to-back direction to form a clean air cavity 320 and a filter cavity 330. At this time, wind shields 360 are respectively connected to the left and right sides of the filter housing 300. A plurality of wind shields 360 on the left side of the filter housing 300 and a plurality of wind shields 360 on the right side of the filter housing 300 are both spaced apart along the up-down direction, and the plurality of wind shields 360 on the left side of the filter housing 300 and the plurality of wind shields 360 on the right side of the filter housing 300 are staggered apart from each other along the left-to-right direction. A plurality of wind shields 360 separate the space inside the filter chamber 330 into a plurality of areas in the up and down directions. At this time, after the gas enters the filter chamber 330, it needs to flow upward in a tortuous manner along the plurality of wind shields 360 to block and guide the gas. This increases the flow distance of the gas in the filter chamber 330, thereby increasing the contact time with the filter baffle 310, and utilizing the filter baffle 310 to further improve the odor absorption and purification effect of the gas.

[0039] The first heater 200 is mainly used to heat the inside of the inner tank 110. The first heater 200 can be directly installed on the bottom side of the inner tank 110, and heat is directly introduced from the bottom side of the inner tank 110 into the cavity through contact heat transfer to achieve heating of the food waste. Alternatively, the first heater 200 can be directly installed in the cavity. Specifically, the first heater 200 can be detachably connected to the bottom side of the cavity. For example, the first heater 200 can be installed in the bottom side of the cavity by snap-fit ​​connection, or the first heating source can be fixed to the bottom side of the cavity by threaded connection and locking. The first heater 200 is installed in the cavity, and can directly heat the food waste entering the cavity. After long-term use, the first heater 200 can be directly disassembled and assembled at the cavity to improve the convenience of use and maintenance.

[0040] The top cover 120 is used to block and close the space above the cavity. In the above embodiment, the top cover 120 can be installed on the top side of the housing 100 by a buckle connection. When the cavity needs to be opened, the entire top cover 120 needs to be removed from the top side of the housing 100. In this embodiment, the top cover 120 is rotatably connected to the top side of the housing 100, and the top cover 120 can open or close the cavity. The top cover 120 opens or closes the cavity by rotating, so as to put and take food waste into the cavity. In actual application, one side of the top cover 120 is rotatably connected to the housing 100 through a rotating shaft, and a buckle is provided on the other side of the top cover 120. Correspondingly, a slot is also provided at the top side of the housing 100. When the cavity needs to be closed by the top cover 120, the top cover 120 is rotated to block the cavity, and the buckle is connected to the slot, thereby locking the position of the top cover 120.

[0041] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A kitchen waste drying machine, characterized in that: include: A casing (100) is connected to an inner liner (110) inside, the inner liner (110) is surrounded to form a cavity arranged upward, a top cover (120) covering the cavity is connected to the top side of the casing (100), an air supply hole connected to the cavity is provided on the top cover (120), and an air exhaust hole (130) is provided on the side wall of the casing (100); A first heater (200) connected to the bottom side of the inner container (110), the first heater (200) being used to heat the inner container (110); A hot air assembly, comprising an air guide housing (210), a first fan (220), a second heating source and a second fan (230), wherein the air guide housing (210) is located in the housing (100), an air intake interface (211), an air return interface (212) and an air discharge interface are formed on the outside of the air guide housing (210), the air intake interface (211) and the air return interface (212) are respectively connected to the inner tank (110), the first fan (220) is connected to the air guide housing (2 10) outside, the first fan (220) is used to form an airflow flowing from the air intake interface (211) to the air return interface (212), the second heating source is connected to the air guide shell (210), the air guide shell (210) is used to heat the airflow flowing out of the air return interface (212), the second fan (230) is connected to the exhaust interface, and the second fan (230) is used to form an airflow flowing from the exhaust interface to the exhaust hole (130).

2. A kitchen waste drying machine according to claim 1, characterized in that: The air guide shell (210) comprises an air intake duct (213), an air return duct (214) and an air exhaust duct (215); one end of the air intake duct (213), one end of the air return duct (214) and one end of the air exhaust duct (215) are connected to each other; the other end of the air intake duct (213) and the other end of the air return duct (214) are respectively connected to the top of the inner liner (110); and the other end of the air exhaust duct (215) extends downward.

3. A kitchen waste drying machine according to claim 2, characterized in that: A boss (121) is formed on the bottom side of the top cover (120), the boss (121) extends downward and blocks the air intake interface (211) and the air return interface (212), a guide groove (122) is arranged on the boss (121) opposite to the air intake interface (211), the guide groove (122) penetrates downward through the bottom side of the boss (121), a guide pipe (123) is arranged inside the boss (121), one end of the guide pipe (123) is connected to the outside of the boss (121) and opposite to the air intake interface (211), and the other end of the guide pipe (123) is connected to the bottom side of the boss (121).

4. A kitchen waste drying machine according to claim 3, characterized in that: The end of the guide tube (123) connected to the bottom side of the boss (121) is used as the air outlet end, and the guide groove (122) and the air outlet end are respectively located on both sides of the center of the top cover (120).

5. The kitchen waste drying machine according to claim 3, characterized in that: A limiting step (140) is arranged on the inner side of the top of the cavity, the limiting step (140) extends around the cavity, and the boss (121) abuts against the limiting step (140).

6. The kitchen waste drying machine according to claim 1, characterized in that: The inner side wall of the housing (100) provided with the exhaust hole (130) is connected to a filter housing (300); an air outlet end of the second fan (230) is connected to the filter housing (300); a filter baffle (310) is provided in the filter housing (300) at a position directly opposite to the exhaust hole (130); the filter baffle (310) sequentially separates the interior of the filter housing (300) in a direction away from the exhaust hole (130) to form a clean air cavity (320) and a filter cavity (330); the second fan (230) and the filter cavity (330) are connected to each other.

7. The kitchen waste drying machine according to claim 6, characterized in that: A mounting platform (340) protruding in a direction away from the exhaust hole (130) is formed on a side of the bottom of the filter housing (300) away from the exhaust hole (130); the second fan (230) is connected to the top side of the mounting platform (340); a drain plate (350) is provided below the second fan (230) in the filter cavity (330); the drain plate (350) extends obliquely downward in a direction away from the second fan (230); a drain pipe is connected to the inclined end of the filter housing (300) facing the drain plate (350); and the drain pipe is connected to the side wall of the casing (100).

8. The kitchen waste drying machine according to claim 7, characterized in that: Two side walls facing each other in the filter cavity (330) are respectively provided with a plurality of wind shielding plates (360) staggered in the up-down direction.

9. The kitchen waste drying machine according to claim 1, characterized in that: The first heater (200) is detachably connected to the bottom side of the cavity.

10. The kitchen waste drying machine according to claim 1, characterized in that: The top cover (120) is rotatably connected to the top side of the housing (100), and the top cover (120) can open or close the cavity.

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