A composter

Abstract

The utility model discloses a composting machine, including fuselage, install storage subassembly in the fuselage, be used for storing and drying material, including the placing cavity formed in the fuselage, the detachable storage bucket of placing cavity, be equipped with heating assembly between storage bucket and placing cavity, be equipped with stirring subassembly in the bottom of storage bucket, air extraction component, be used for extracting the gas of storage subassembly emission, and transport to the place of removing peculiar smell component, remove peculiar smell component, be used for purifying peculiar smell, and with the outside communication, when the kitchen garbage reaches fixed part one and fixed part two, the stirring rod will pass through fixed part one and fixed part two, and then will be broken the kitchen garbage of block, after rotating cycle for many times, the kitchen garbage will be " cut " broken, and the process of drying is through the mode of stirring to make the kitchen garbage keep turning over, makes it dry more completely.

Description

Technical Field

[0001] This utility model belongs to the technical field of kitchen waste treatment equipment, specifically a composting machine. Background Technology

[0002] A composting machine collects kitchen waste, dries it, and then uses the kitchen waste as fertilizer. During the drying process, an odor is generated. A fan extracts the gas from the inner cavity, filters it, and then discharges the gas to the outside, as shown in the technical solution of the publicly available technical document "CN 221706001 U, a kitchen waste drying processor".

[0003] In daily life, kitchen waste contains some strips or chunks, such as green vegetables and potatoes. These substances contain a lot of moisture. If they are not broken up, even if the external moisture evaporates, the inside will still be wet and cannot be completely dried. Although existing food processors use high-speed rotation to cut the substances, high-speed rotation is accompanied by noise and vibration, so the effect is not ideal. Moreover, the substances are broken up in a short time, and the upper part still cannot be dried. Utility Model Content

[0004] The purpose of this invention is to provide a composting machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A composting machine includes a body, wherein a;

[0007] A storage assembly for storing and drying materials includes a placement cavity formed within the machine body, in which a storage tank is detachably disposed. A heating assembly is disposed between the storage tank and the placement cavity. A stirring assembly is installed at the bottom of the storage tank. The connecting end of the stirring assembly is located outside the storage tank and is detachably connected to a power assembly. The stirring assembly includes an upper stirring rod, a middle stirring rod, and a lower stirring rod. At least one horizontally extending fixing part one and fixing part two are provided on the side wall of the storage tank. Fixing part one is located between the upper stirring rod and the middle stirring rod, and fixing part two is located between the middle stirring rod and the lower stirring rod.

[0008] The extraction unit is used to extract the gas emitted by the storage unit and deliver it to the odor removal unit;

[0009] Odor removal component, used to purify odors, and connected to the outside environment.

[0010] In a further technical solution, a coupler is provided in the placement cavity, a limiting groove and a coupler are provided at the bottom of the storage tank, a heating component is provided in the limiting groove, and the two ends of the heating component are respectively connected to the coupler.

[0011] Several support plates are provided at the bottom edge of the storage tank, and the extension height of the support plates is greater than the installation height of the heating element.

[0012] In a further technical solution, the bottom of the inner cavity of the storage tank is provided with a concave groove, and the bottom of the lower stirring rod is provided with a protrusion, which is placed in the groove.

[0013] In a further technical solution, the storage tank has an opening at the top, and a cover is provided above the opening. The cover is detachably connected to the body, and there is a gap between the cover and the storage tank. The air extraction component extracts gas from the gap.

[0014] A further technical solution is that the odor removal component includes a housing, an activated carbon box inside the housing, an openable exhaust grille at one end of the housing, a sealing structure one between the exhaust grille and one end of the activated carbon box, a sealing structure two between the other end of the activated carbon box and the housing, and an air inlet near the sealing structure two.

[0015] The activated carbon box has several exhaust holes at one end corresponding to the exhaust grille, and the end near the sealing structure two is recessed inward to form a boss. Several air inlets are provided on the outer periphery of the boss. Each air inlet is an elongated "L" shape, and a support part corresponding to the air inlet is provided in the groove of the boss.

[0016] In a further technical solution, the support portion covers the outer side of the first air inlet and forms a partition layer, and several second air inlets are provided on the support portion.

[0017] In a further technical solution, an end cap is detachably connected to the activated carbon box.

[0018] In a further technical solution, the upper end of the activated carbon box is provided with two clearance positions.

[0019] A further technical solution includes a sensor anti-contamination structure in the air extraction assembly, comprising a first air duct housing, a blower installed on one side of the first air duct housing, an inwardly extending shielding block located at the air inlet end of the first air duct housing relative to the blower, the shielding block having at least one through hole, a sensor installed on the outside of the first air duct housing, the sensor probe being placed in the through hole.

[0020] In a further technical solution, the side wall of the first air duct housing is provided with a mounting groove for mounting sensors.

[0021] A further technical solution is that a bracket for fixing a blower is installed on the first air duct housing, and the bracket is used to install a second air duct housing. One end of the second air duct housing corresponds to the air outlet end of the blower, and the other end of the second air duct housing is connected to the odor removal component.

[0022] The beneficial effects of this utility model are:

[0023] The stirring component in this invention rotates slowly, propelling the material through the storage container without generating much noise. When the kitchen waste reaches the first and second fixing parts, the stirring rod passes through them, breaking up the lumps and piles of kitchen waste. After multiple rotation cycles, the kitchen waste is "shredded." Simultaneously, the stirring process during drying keeps the kitchen waste turning over, ensuring it dries more completely.

[0024] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0025] Figure 1 The internal structure of composting according to this utility model Figure 1 .

[0026] Figure 2 The internal structure of composting according to this utility model Figure 2 .

[0027] Figure 3 The internal structure of composting according to this utility model Figure 3 .

[0028] Figure 4 : Structural diagram of the stirring assembly of this utility model.

[0029] Figure 5 : A structural diagram of the storage component of this utility model.

[0030] Figure 6 : Structural diagram of the exhaust component and odor removal component of this utility model.

[0031] Figure 7 : Structural diagram of the odor removal component of this utility model.

[0032] Figure 8 : Structural diagram of the activated carbon box of this utility model.

[0033] Reference numerals: 1-First air duct housing, 11-Shielding, 12-Through hole, 13-Mounting slot, 2-Blower, 3-Sensor, 4-Bracket, 5-Second air duct housing, 6-Odor removal component, 61-Housing, 62-Activated carbon box, 621-Exhaust port, 622-Boss, 623-Inlet port one, 624-Support, 625-Inlet port two, 626-Clearing space, 627-End cap, 63-Exhaust grille, 64-Sealing structure two, 7-Storage component, 71- Placement cavity, 72-Coupler 1, 721-Storage tank, 722-Limiting groove, 723-Coupler 2, 724-Heating tube, 725-Support plate, 726-Slide groove, 73-Stirring assembly, 7361-Upper stirring rod, 7362-Middle stirring rod, 7363-Lower stirring rod, 7364-Fixing part 1, 7365-Fixing part 2, 7366-Protrusion, 7367-Connecting end, 7368-Power assembly, 741-Shielding cover, 742-Gap, 8-Body. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0035] Please refer to Figure 1-8 ;

[0036] The composting machine described in this utility model aims to improve the drying effect of kitchen waste. Specifically, it includes a body 8, within which a storage component 7, an exhaust component, and an odor removal component 6 are installed. The storage component 7 includes a placement cavity 71 formed within the body 8, which can be an outer cover connected to the body 8. A storage tank 721 is detachably installed within the placement cavity 71. A heating component is located between the storage tank 721 and the placement cavity 71. A stirring component 73 is installed at the bottom of the storage tank 721. The connecting end 7367 of the stirring component 73 is located outside the storage tank 721 and is detachably connected to a power component 7368. The power component 7368 mainly consists of a motor, gears, and a connector, and is installed at the bottom of the placement cavity 71. The connector is detachably connected to the connecting end 7367 of the stirring component 73. Furthermore, the stirring component 73 includes an upper stirring rod 7361, a middle stirring rod 7362, and a lower stirring rod 7363. Multiple rods can be arranged on the same plane. The storage container 721 has at least one horizontally extending fixing part 1 7364 and fixing part 2 7365 on its side wall. Fixing part 1 7364 is located between the upper stirring rod 7361 and the middle stirring rod 7362, and fixing part 2 7365 is located between the middle stirring rod 7362 and the lower stirring rod 7363. It can be understood that fixing part 1 7364 and fixing part 2 7365 are respectively offset from the upper stirring rod 7361, the middle stirring rod 7362 and the lower stirring rod 7363. Of course, the ends of fixing part 1 7364 and fixing part 2 7365 should be as close as possible to the pivot position of the stirring assembly 73 to prevent food waste from passing through this part. Moreover, the lower stirring rod 7363 should be as close as possible to the bottom of the storage container 721. More specifically, the specific structure of the stirring assembly 73 can refer to the rotary cutter method in the food processor in the prior art. The difference is that this embodiment uses stirring instead of cutting, which can avoid uneven heating of food waste and can also dry it faster.

[0037] It should be noted that the body 8 should be provided with a flip cover at the position corresponding to the storage tank 721 to form an opening for taking out and putting in the storage tank 721.

[0038] During operation, food waste is poured into the storage bin 721, and the flip cover of the machine body 8 is closed to start working. The food waste in the storage bin 721 is heated by the heating component. During this process, the stirring component 73 rotates slowly, pushing the material to move in the storage bin 721, so that there is not much noise. When the food waste reaches the fixed part 1 7364 and the fixed part 2 7365, the stirring rod 7362 will pass through the fixed part 1 7364 and the fixed part 2 7365, and then break the lumps and piles of food waste. After multiple rotation cycles, the food waste will be "shredded". At the same time, the food waste is constantly turned over by stirring during the drying process, so that it dries more completely.

[0039] The gas generated during the drying process is drawn away by the air extraction component and fed into the odor removal component 6. Finally, the gas is discharged after being treated by the odor removal component 6.

[0040] In the prior art, the storage tank 721 is heated by a heating plate. However, since the heating plate needs to be connected to a power source, it is usually fixed in the composting machine, meaning that the storage tank 721 and the heating plate are separable. At the same time, the bottom surface of the storage tank 721 may be bumped or uneven, which will also cause poor contact between the storage tank 721 and the heating plate, resulting in poor heat transfer. Therefore, this embodiment avoids uneven heat conduction by forming the heating component and the storage tank 721 into an integrated structure.

[0041] Specifically, the placement cavity 71 is provided with a coupler 72, the bottom of the storage tank 721 is provided with a limiting groove 722 and a coupler 723, the limiting groove 722 is provided with a heating component, wherein the heating component can be a heating tube 724, and the two ends of the heating component are respectively connected to the coupler 723.

[0042] In the initial state, the storage bin 721 is located in the placement cavity 71. At the same time, the coupler 1 72 and the coupler 2 723 are connected together by plugging. When in use, the kitchen waste is poured into the storage bin 721. Then, the coupler 1 72 transmits electrical energy to the coupler 2 723 to generate heat in the heating component. The heat is then transferred to the storage bin 721 to dry the kitchen waste inside.

[0043] When dry kitchen waste needs to be removed, the storage bin 721 can be directly removed from the placement cavity 71 of the body 8. Since the heating component and coupler 723 are installed together with the storage bin 721, these components will also be removed along with the storage bin 721. That is, the position between the heating component and the storage bin 721 will not change. The contact surface between the heating component and the storage bin 721 is set before leaving the factory and will not change due to the state of the storage bin 721, ensuring high heat transfer efficiency. In addition, a limiting groove 722 is provided at the bottom of the storage bin 721. The shape of the limiting groove 722 is adapted to the heating tube 724. Preferably, the heating component can be completely wrapped by the double-layer design, which can maximize the utilization of the heat of the heating tube 724.

[0044] Furthermore, several support plates 725 are provided at the bottom edge of the storage tank 721. The extension height of the support plates 725 is greater than the installation height of the heating component. When the storage tank 721 is placed in the placement cavity 71, it is supported by the support plates 725 contacting the bottom of the placement cavity 71, which can reduce the heat transfer to the placement cavity 71, i.e., less heat loss. At the same time, several grooves can be provided in the placement cavity 71 corresponding to the support plates 725, which can play a positioning role.

[0045] Furthermore, the bottom of the inner cavity of the storage tank 721 is provided with a concave groove 726, and the bottom of the lower stirring rod 7363 is provided with a protrusion 7366. The protrusion 7366 is placed in the groove 726, and the width of the protrusion 7366 is adapted to the groove 726, which can make the stirring component 73 operate more stably, while reducing the remaining space and promoting the movement of kitchen waste that has sunk to the bottom.

[0046] During operation, composting machines generate odors due to heating and drying. Therefore, they are usually equipped with air extraction and odor removal components. However, air needs to be drawn in from the outside to achieve air flow. Therefore, the storage tank 721 adopts an open design without an end cover 627 to increase the air intake. However, during operation, some kitchen waste may bounce up and liquid splashes onto the flip cover, which is difficult to clean. Therefore, a cover 741 is provided above the opening. There is a gap 742 between the cover 741 and the storage tank 721 to ensure a large air intake. In addition, the cover 741 is detachably connected to the body 8, and the cover 741 can be removed and cleaned periodically.

[0047] In existing technologies, activated carbon adsorption is commonly used in gas purification components. However, activated carbon particles are very small, and to ensure smooth air intake, the pore size of the air inlet is relatively large. While the activated carbon particles are generally not loosened due to mutual friction, some dust and even smaller activated carbon particles near the air inlet will still fall out and into the air duct. These fallen activated carbon particles accumulate over time and require disassembly for cleaning, affecting exhaust performance or causing abnormal noise. In this embodiment, a support structure is used to contain the fallen particles and prevent them from falling into the air duct.

[0048] Specifically, it includes a housing 61, inside which is an activated carbon box 62. An openable exhaust grille 63 is located at one end of the housing 61. A sealing structure (not shown) is provided between the exhaust grille 63 and one end of the activated carbon box 62 to ensure gas output from the exhaust grille 63. A second sealing structure 64 is provided between the other end of the activated carbon box 62 and the housing 61. Preferably, a first sealing gasket is located at the bottom of the activated carbon box 62, and a second sealing gasket is located inside the housing 61. When the exhaust grille 63 is closed, pressure is applied to the activated carbon box 62. Force is applied to compress the first and second sealing gaskets together to form a seal, and the same principle applies to the first sealing structure; an air inlet is provided near the second sealing structure 64; the activated carbon box 62 is provided with several exhaust holes 621 at one end corresponding to the exhaust grille 63, and the end near the second sealing structure 64 is recessed inward to form a boss 622. Several air inlets 623 are provided on the outer periphery of the boss 622. The air inlets 623 are long "L" shaped, and a support part 624 corresponding to the air inlets 623 is provided in the groove of the boss 622.

[0049] Activated carbon has a limited lifespan and needs to be replaced after a period of time. The activated carbon box 62 can be sold as an accessory. When it needs to be replaced, simply open the exhaust grille 63, take out the activated carbon box 62 located in the housing 61, put in the new activated carbon box 62, and finally close the exhaust grille 63. It is very convenient.

[0050] In another embodiment, the activated carbon box 62 is detachably connected to an end cap 627, which can be connected by screws. Generally, the activated carbon box 62 is made of plastic. For a more environmentally friendly approach, when replacement is needed, the end cap 627 is removed, the activated carbon inside is poured out, new activated carbon is added, and finally the end cap 627 is reinstalled.

[0051] Preferably, the upper end of the activated carbon box 62 is provided with two clearance positions 626, which are exactly the positions of the thumb and index finger, making it easy for people to take it out.

[0052] Since the activated carbon box 62 is placed vertically during use, it cannot completely prevent activated carbon particles from falling out of the air inlet 623. These fallen activated carbon particles will accumulate over time, affecting the exhaust effect or causing abnormal noise. Therefore, the air inlet 623 has a side-facing design, so that the orientation of the hole is not the same as the direction of gravity. Even if the activated carbon particles are squeezed downwards by gravity, the lateral impact is greatly reduced, thereby further reducing the falling of activated carbon particles.

[0053] Preferably, the air inlet 623 is an elongated "L" shape, which can increase the air intake area, but also increases the possibility of activated carbon particles falling off. The groove of the boss 622 is provided with a support part 624 corresponding to the air inlet 623. Even if activated carbon particles fall off, some will fall into the support part 624, and fewer will fall into the second air duct housing 61.

[0054] It should be noted that after the activated carbon granules are filled, the mutual friction between the granules will limit their loosening. Moreover, since the gas contains moisture, the activated carbon shell 61 of the air inlet 623 will be the first to be moistened. Although it will dry later, it will strengthen the adhesion between the activated carbon granules near the air inlet 623, so it will not fall off easily. However, when it falls off, it will be in small pieces, so it will not fly away, but will fall into the support part 624.

[0055] Furthermore, the outer side of the air inlet 623 of the support part 624 is covered and forms a partition, which forms an "L" shape in cross-section. Several air inlets 625 are provided on the support part 624 to further prevent the activated carbon shell 61 from falling out. Preferably, the air inlets 623 and the air inlets 625 are staggered.

[0056] A sensor 3 is installed in the air extraction assembly to monitor the humidity and temperature of the airflow and to determine the working status. However, water droplets and fine particles mixed in the airflow can adhere to the sensor 3, affecting the monitoring data and sending incorrect information to the system. In this embodiment, the air extraction assembly is equipped with a contamination-proof structure for the sensor 3 to prevent the sensor 3 from being affected during exhaust.

[0057] Specifically, it includes a first air duct housing 1, a blower 2 installed on one side of the first air duct housing 1, and an inwardly extending baffle 11 located at the air inlet end of the first air duct housing 1 opposite to the blower 2. The baffle 11 has at least one through hole 12. A sensor 3 is installed on the outside of the first air duct housing 1, and the probe of the sensor 3 is placed in the through hole 12. In this embodiment, the first air duct housing 1 should have an air duct for gas flow, and the air inlet end of the blower 2 and the baffle 11 are respectively positioned opposite each other on both sides of the air duct.

[0058] In the actual structure, one end of the first air duct shell 1 is connected to the space of the composter used to store kitchen waste. When working, the space is heated to evaporate the moisture of the kitchen waste. At the same time, the blower 2 is turned on to draw the odors and moisture generated in the space into the air duct. Of course, some dust and fine floating particles will also be present.

[0059] Since the source of suction comes from blower 2, the airflow that is formed will deviate towards blower 2 as it gets closer to the air intake end of blower 2 after entering the air duct. The sensor 3 probe is set on the opposite side of the air intake end of blower 2 and is also equipped with a shield 11 as a shield. The sensor 3 probe will not extend out of the shield 11, which can greatly reduce the contact with the airflow and thus reduce the adhesion of dust, water droplets and other substances to the probe.

[0060] It should be noted that although the sensor 3 probe has less contact with the airflow, the airflow is continuous and will still heat up the duct through heat transfer. Moreover, the airflow is filled with gas, and the disordered movement of moisture in the airflow will still fill the duct. Therefore, even if the sensor 3 probe does not have much contact with the airflow, it can still detect the temperature and humidity inside the duct. Of course, this design may cause a slight deviation in the final detection result, but the heating temperature itself will fluctuate, which can be solved by extending the heating time, but it will not affect the overall operation of the equipment.

[0061] Preferably, a mounting groove 13 is provided on the side wall of the first air duct housing 1, and the mounting groove 13 corresponds to the shielding block 11. The sensor 3 located on the outside is usually a PCB board and a data connector. The PCB board can be embedded in the installation, and the probe passes through the through hole 12, which can limit the installation of the sensor 3, making the installation more convenient.

[0062] In this embodiment of the present invention, a bracket 4 is installed on the first air duct housing 1, and the bracket 4 is used to install the second air duct housing 5. One end of the second air duct housing 5 corresponds to the air outlet end of the blower 2, and the other end of the second air duct housing 5 is connected to the odor removal component 6.

[0063] Because the extracted airflow contains a strong odor, a sealing structure is also required. The small blower 2 itself does not have a connecting installation structure. Therefore, the bracket 4 not only provides a mounting structure for the blower 2 to the first air duct housing 1, but also provides a connecting installation structure for the blower 2 to the second air duct housing 5. In addition, the most common sealing structure is to set a mutually fitting plug-in structure and to set a sealing gasket. Through the above structure, the airflow can be smoothly guided into the odor removal component 6, and then the odor removal component 6 removes the odor in the gas before it is discharged to the outside.

[0064] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0065] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A composting machine, comprising a body (8), characterized in that: The fuselage (8) is equipped with; A storage assembly (7) for storing and drying materials includes a placement cavity (71) formed within the machine body (8), in which a storage tank (721) is detachably disposed. A heating assembly is provided between the storage tank (721) and the placement cavity (71). A stirring assembly (73) is installed at the bottom of the storage tank (721). The connecting end (7367) of the stirring assembly (73) is located outside the storage tank (721) and detachably connected to a power assembly (7368). The mixing assembly (73) is provided with an upper stirring rod (7361), a middle stirring rod (7362) and a lower stirring rod (7363). At least one horizontally extending fixing part one (7364) and fixing part two (7365) are provided on the side wall of the storage tank (721). The fixing part one (7364) is located between the upper stirring rod (7361) and the middle stirring rod (7362), and the fixing part two (7365) is located between the middle stirring rod (7362) and the lower stirring rod (7363). The exhaust assembly is used to extract the gas emitted by the storage assembly (7) and deliver it to the deodorizing assembly (6); Odor removal component (6) is used to purify odors and is connected to the outside world.

2. A composting machine according to claim 1, characterized in that: The placement cavity (71) is provided with a coupler one (72), the bottom of the storage tank (721) is provided with a limiting groove (722) and a coupler two (723), the limiting groove (722) is provided with a heating component, and the two ends of the heating component are respectively connected to the coupler two (723); Several support plates (725) are provided at the bottom edge of the storage tank (721), and the extension height of the support plates (725) is greater than the installation height of the heating tube (724).

3. A composting machine according to claim 2, characterized in that: The storage tank (721) has a concave groove (726) at the bottom of its inner cavity, and the lower stirring rod (7363) has a protrusion (7366) at its bottom, which is placed in the groove (726).

4. A composting machine according to claim 2, characterized in that: The storage tank (721) has an opening at the top, and a cover (741) is provided above the opening. The cover (741) is detachably connected to the body (8), and there is a gap (742) between the cover (741) and the storage tank (721). The air extraction assembly extracts gas from the gap (742).

5. A composting machine according to claim 1, characterized in that: The odor removal component (6) includes a housing (61), an activated carbon box (62) is built into the housing (61), an openable exhaust grille (63) is provided at one end of the housing (61), a sealing structure one is provided between the exhaust grille (63) and the activated carbon box (62), a sealing structure two (64) is provided between the other end of the activated carbon box (62) and the housing (61), and an air inlet is provided near the sealing structure two (64); The activated carbon box (62) is provided with a plurality of exhaust holes (621) at one end corresponding to the exhaust grille (63), and the end near the sealing structure two (64) is recessed inward to form a boss (622). The outer periphery of the boss (622) is provided with a plurality of air inlets (623). The air inlets (623) are in the shape of an elongated "L". A support part (624) corresponding to the air inlets (623) is provided in the groove of the boss (622).

6. A composting machine according to claim 5, characterized in that: The support part (624) covers the outside of the first air inlet (623) and forms a partition, and a plurality of second air inlets (625) are provided on the support part (624).

7. A composting machine according to claim 5, characterized in that: The activated carbon box (62) is detachably connected to an end cap (627).

8. A composting machine according to claim 5, characterized in that: The activated carbon box (62) has two clearance positions (626) opposite each other at its upper end.

9. A composting machine according to claim 1, characterized in that: The air extraction assembly is equipped with a sensor (3) anti-pollution structure, including a first air duct shell (1), a blower (2) is installed on one side of the first air duct shell (1), and an inwardly extending shield (11) is provided at the air inlet end of the first air duct shell (1) relative to the blower (2). The shield (11) is provided with at least one through hole (12). A sensor (3) is installed on the outside of the first air duct shell (1), and the probe of the sensor (3) is placed in the through hole (12).

10. A composting machine according to claim 9, characterized in that: The first duct housing (1) is equipped with a bracket (4) for fixing the blower (2), and the bracket (4) is used to install the second duct housing (5). One end of the second duct housing (5) corresponds to the air outlet of the blower (2), and the other end of the second duct housing (5) is connected to the odor removal component (6).

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