A garbage sorting device with pollution degree determination function

Abstract

The application discloses a garbage classification device with a pollution degree judgment function, which comprises a shell, a first screening module, a first conveying mechanism, a first pollution detection unit, a second pollution detection unit, a second conveying mechanism and a control system; the first screening module sorts garbage into squeezable garbage and unsqueezable garbage, which is conveyed by the first conveying mechanism; the first pollution detection unit detects the unsqueezable garbage by a non-squeezing method; the second pollution detection unit detects the squeezable garbage by a squeezing method; and the detected garbage is conveyed to a corresponding storage space by the second conveying mechanism. The application classifies garbage according to whether it can be squeezed subjectively, and then adopts a suitable pollution detection method for different types of garbage; the design is convenient for evaluating the pollution degree of various types of garbage, and the garbage is classified according to the pollution degree, so that more detailed garbage classification is realized.

Description

Technical Field

[0001] This invention relates to the field of intelligent environmental protection equipment technology, and in particular to a waste sorting device with a pollution level determination function. Background Technology

[0002] With the acceleration of urbanization and the improvement of residents' living standards, the amount of household waste has been increasing year by year, and waste sorting and disposal has become an important part of urban management. Effective waste sorting can not only improve the recycling rate of resources and reduce environmental pollution caused by landfill and incineration, but also reduce the cost of subsequent treatment. At present, existing intelligent waste sorting devices typically use cameras, image recognition modules or detection platforms to identify the category of waste, and combine them with conveying mechanisms, pushing mechanisms, rotating mechanisms or sorting units to guide the waste into the corresponding waste sorting bins.

[0003] However, existing smart waste sorting devices only identify and classify waste materials or types, and do not yet have the function of identifying the degree of waste pollution. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a waste sorting device with a pollution level determination function, which can identify the degree of waste pollution and thus sort the waste more precisely.

[0005] The objective of this invention is achieved by the following technical solution: a waste sorting device with a pollution level determination function, comprising: a shell, a first screening module, a first conveying mechanism, a first pollution detection unit, a second pollution detection unit, a second conveying mechanism, and a control system;

[0006] The housing has a receiving cavity and a waste inlet. The receiving cavity includes a sorting cavity, a first detection cavity, a second detection cavity, and multiple storage cavities. The sorting cavity, the first detection cavity, the second detection cavity, and the multiple storage cavities are sequentially connected. The sorting cavity is connected to the external environment through the waste inlet. The first detection cavity and the second detection cavity are located on opposite sides of the sorting cavity.

[0007] The first screening module is located in the housing and includes an identification unit and a waste holding unit. The identification unit is used to determine whether the waste entering the sorting chamber from the waste inlet is compressible waste or non-compressible waste. The waste holding unit is used to separate and store compressible waste and non-compressible waste. The waste holding unit is provided with a discharge structure. When the discharge mechanism is opened, the discharge structure discharges the sorted waste.

[0008] The first conveying mechanism is located inside the sorting chamber. The first conveying mechanism receives the waste discharged by the discharge structure and transfers the waste to the first detection chamber or the second detection chamber respectively.

[0009] The first pollution detection unit is installed inside the first detection chamber and is used to detect the degree of pollution of incompressible waste.

[0010] The second pollution detection unit is installed inside the second detection chamber. The second pollution detection unit has a squeezing part for squeezing squeezing compressible waste.

[0011] The second conveying mechanism is disposed in the housing and is connected to the first detection chamber, the second detection chamber, and the plurality of storage chambers respectively; the second conveying mechanism is used to convey the waste in the first detection chamber or the second detection chamber to the corresponding storage chamber;

[0012] The first screening module, the first conveying mechanism, the first pollution detection unit, the second pollution detection unit, and the second conveying mechanism are all electrically connected to the control system.

[0013] Furthermore, the first screening module includes a first camera, a trash can, a tray, and a first drive mechanism; the first camera is disposed in the housing and located directly above the trash inlet; the trash can is disposed in the sorting chamber, and the trash can has a compressible trash receiving chamber and a non-compressible trash receiving chamber;

[0014] Both the compressible waste container and the non-compressible waste container are connected to the sorting chamber; the bottom of the compressible waste container is provided with a first door panel, which is used to open or close the compressible waste container; the bottom of the non-compressible waste container is provided with a second door panel, which is used to open or close the non-compressible waste container; both the first door panel and the second door panel are electrically connected to the control system.

[0015] The tray is disposed on the trash can and located above the compressible trash cavity and the non-compressible trash cavity, with the compressible trash cavity and the non-compressible trash cavity located on opposite horizontal sides of the tray. The tray is used to receive trash entering the sorting cavity from the trash inlet. The first drive mechanism is drivenly connected to the tray so that the tray swings around the first drive mechanism to dump the trash into the compressible trash cavity or the non-compressible trash cavity.

[0016] Furthermore, the first conveying mechanism is located below the trash can; the first conveying mechanism includes a second driving mechanism, a first connecting rod, a second connecting rod, and a conveyor belt mechanism; the second driving mechanism, the first connecting rod, the second connecting rod, and the conveyor belt mechanism are sequentially driven and connected so that the conveyor belt mechanism can swing around its connection point with the second connecting rod, the conveyor belt mechanism extends horizontally, and both ends of the conveyor belt mechanism extend into the first detection cavity and the second detection cavity, respectively.

[0017] Furthermore, the plurality of storage cavities are distributed sequentially at intervals along the vertical direction; among the plurality of storage cavities, at least one is a food waste storage cavity.

[0018] Furthermore, among the plurality of storage cavities, at least one recyclable waste storage cavity and one other waste storage cavity are included.

[0019] Furthermore, a transition slide is provided inside the second detection chamber, and the transition slide is located between the conveyor belt mechanism and the second pollution detection unit; the transition slide can dock with the end of the conveyor belt mechanism to receive the compressible waste transported on the conveyor belt mechanism;

[0020] The waste sorting device with pollution level determination function further includes a second screening module and a third conveying mechanism; the second screening module includes an electric slide, a second camera, and a pusher plate; the electric slide is slidably connected to the top wall of the second detection chamber, and the electric slide can reciprocate along the width direction of the transition slide; the second camera is disposed on the electric slide and is electrically connected to the control system, and is used to capture images of waste at the end of the conveyor belt mechanism; the pusher plate abuts against the table surface of the transition slide; the pusher plate is linked to the electric slide to follow the electric slide in reciprocating along the width direction of the transition slide;

[0021] The third conveying mechanism includes a spiral conveying cylinder and a third driving mechanism; the spiral conveying cylinder extends vertically and sequentially passes through multiple storage cavities; the inlet of the spiral conveying cylinder is connected to the transition slide, and the outlet of the spiral conveying cylinder is connected to the kitchen waste storage cavity; the third driving mechanism is drivenly connected to the spiral conveying cylinder to drive the spiral conveying cylinder to rotate around its own axis; the third driving mechanism is electrically connected to the control system.

[0022] Furthermore, the first pollution detection unit includes a flip plate, a light source, and a photoelectric sensor; the flip plate is pivotally connected to the inner wall of the first detection cavity so that the swing end of the flip plate can swing around the pivot end of the flip plate; the swing end of the flip plate abuts against the end of the conveyor belt mechanism; the light source is located on the side of the flip plate facing the conveyor belt mechanism so that the light source illuminates the non-crushable waste; the photoelectric sensor is used to receive reflected light from the non-crushable waste, and the photoelectric sensor is electrically connected to the control system.

[0023] Further, the second pollution detection unit includes a sieve plate, at least one squeezing mechanism, a leachate collection box, and a weight sensor; the sieve plate is located at the bottom of the second detection chamber; the sieve plate has multiple leakage holes, the leakage holes extending through the wall thickness of the sieve plate, some of the leakage holes being spaced apart along the length direction of the sieve plate, and some of the leakage holes being spaced apart along the width direction of the sieve plate; the squeezing mechanism is located on the inner wall of the second detection chamber, and the squeezing mechanism can reciprocate in a horizontal or vertical direction to approach and squeeze the compressible waste, or move away from the already flattened compressible waste; the leachate collection box is located below the sieve plate to collect the leachate that overflows during the squeezing process of the compressible waste; the weight sensor is installed in the leachate collection box, and the weight sensor is used to detect the weight change of the leachate collection box, and the weight sensor is electrically connected to the control system.

[0024] Furthermore, the second conveying mechanism includes a conveying pipe, multiple control valves, and multiple negative pressure suction machines; the conveying pipe is connected to the first detection chamber, the second detection chamber, and the multiple storage chambers respectively; each control valve is correspondingly located at the connection point between the conveying pipe and the first detection chamber, or the connection point between the conveying pipe and the second detection chamber, or the connection point between the conveying pipe and the multiple storage chambers, and the multiple control valves are electrically connected to the control system; each negative pressure suction machine is correspondingly installed in each storage chamber, and the multiple negative pressure suction machines are electrically connected to the control system.

[0025] Furthermore, the waste sorting device with pollution level determination function also includes a gripping mechanism, which is a robotic arm. The robotic arm is located in the sorting cavity and is used to pick up non-compressible waste from the tray and place the non-compressible waste into the non-compressible waste receiving cavity. The robotic arm is electrically connected to the control system.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1. The first screening module uses visual recognition to determine whether the waste is compressible or non-compressible, so that subsequent sorting can detect the degree of contamination. The classification standard is set as "compressible or not," mainly based on three advantages brought by the subsequent second contamination detection unit's determination of contamination level through compression: First, compressing the waste can separate contaminants (such as oil stains, residual liquids) from the waste, which is equivalent to cleaning the waste, allowing it to enter the subsequent specific storage chamber in a relatively dry state; Second, the compression process can expose the contaminants originally wrapped inside the waste (such as oil stains absorbed by paper towels) to the surface, avoiding misjudgment due to the inability to detect internal contamination, thereby improving the accuracy of the waste contamination level determination; Third, compressing the volume of compressible waste facilitates subsequent transportation and storage.

[0028] 2. The first pollution detection unit detects the degree of pollution of non-compressible waste in a non-compressible manner. Since pollutants are difficult to penetrate into non-compressible waste, the first pollution detection unit can determine the degree of pollution of non-compressible waste by detecting whether there are pollutants on the surface of the non-compressible waste. At the same time, it avoids compressing the non-compressible waste and causing it to break, thus ensuring the integrity of the non-compressible waste and facilitating subsequent secondary processing.

[0029] 3. The second conveying mechanism includes a conveying pipe, multiple control valves, and multiple negative pressure suction machines. The conveying pipe constitutes the conveying path of the second conveying mechanism. By opening and closing different control valves, multiple conveying paths can be constructed in the conveying pipe. Compared with the complex conveyor belt structure, the structure is simple. The negative pressure suction machine, as a power source, can suck the garbage from the first detection chamber or the second detection chamber to a specific storage chamber for storage. On the other hand, the negative pressure suction machine can also act as a fan to dry and deodorize the garbage in the storage chamber under normal conditions. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a waste sorting device with a pollution level determination function according to the present invention;

[0031] Figure 2 for Figure 1 The sectional view shown;

[0032] Figure 3 for Figure 2 A cross-sectional view of the storage cavity shown;

[0033] Figure 4 for Figure 1 The diagram shows the structure of the transmission pipeline.

[0034] In the diagram: 1. Shell; 101. Receiving cavity; 102. Waste inlet; 1011. Sorting cavity; 1012. First detection cavity; 1013. Second detection cavity; 1014. Storage cavity; 10141. Kitchen waste storage cavity; 10142. Recyclable waste temporary storage cavity; 10143. Other waste temporary storage cavity; 2. First screening module; 201. First camera; 202. Tray; 2021. Compressible waste receiving cavity; 2022. Non-compressible waste receiving cavity; 2023. First door panel; 2024. Second door panel; 203. Support tray; 204. First drive mechanism; 3. First conveying mechanism; 301. Second drive mechanism; 302. First connecting rod; 30 3. Second connecting rod; 304. Conveyor belt mechanism; 4. First pollution detection unit; 401. Tilting plate; 402. Light source; 403. Photoelectric sensor; 5. Second pollution detection unit; 501. Sieve plate; 5011. Leakage hole; 502. Squeezing mechanism; 503. Leakage collection box; 504. Weight sensor; 6. Second conveying mechanism; 601. Conveying pipe; 602. Control valve; 603. Negative pressure suction machine; 7. Control system; 8. Transition slide; 9. Second screening module; 901. Electric slide; 902. Second camera; 903. Push plate; 10. Third conveying mechanism; 1001. Spiral conveyor cylinder; 1002. Third drive mechanism; 11. Grabbing mechanism. Detailed Implementation

[0035] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0036] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] like Figures 1 to 4As shown, a preferred embodiment of the present invention provides a waste sorting device with a pollution level determination function, comprising: a housing 1, a first screening module 2, a first conveying mechanism 3, a first pollution detection unit 4, a second pollution detection unit 5, a second conveying mechanism 6, and a control system 7.

[0039] The housing 1 has a receiving cavity 101 and a waste inlet 102. Preferably, the waste inlet 102 is located at the top of the housing 1, allowing waste to fall downwards due to gravity after entering the receiving cavity 101 from the waste inlet 102. The receiving cavity 101 includes a sorting cavity 1011, a first detection cavity 1012, a second detection cavity 1013, and multiple storage cavities 1014. The sorting cavity 1011, the first detection cavity 1012, the second detection cavity 1013, and the multiple storage cavities 1014 are cavities of varying sizes and shapes (preferably rectangular cavities for ease of processing). The storage cavities 1014 can be categorized according to existing waste recycling classifications, including recyclable waste storage cavities, non-recyclable waste storage cavities, and other waste storage cavities. The sorting cavity 1011, the first detection cavity 1012, the second detection cavity 1013, and the multiple storage cavities 1014 are sequentially connected, allowing waste to be sorted within the sorting cavity 1011 and then transported to the next storage cavity 1014. The device has a structural basis for detection in a first detection chamber 1012 or a second detection chamber 1013, and a structural basis for transporting the waste to the corresponding storage chamber 1014 for storage after detection in the first detection chamber 1012 or the second detection chamber 1013. The sorting chamber 1011 is connected to the external environment through the waste inlet 102. Waste enters the sorting chamber 1011 from outside the housing 1 through the waste inlet 102 and waits for sorting. The first detection chamber 1012 and the second detection chamber 1013 are located on opposite sides of the sorting chamber 1011. Preferably, the first detection chamber 1012 and the second detection chamber 1013 are located on opposite horizontal sides of the sorting chamber 1011, with the first detection chamber 1012 on the left side and the second detection chamber 1013 on the right side. This allows the same first conveying mechanism 3 to transport waste to the first detection chamber 1012 and the second detection chamber 1013, thereby simplifying the device structure.

[0040] The first screening module 2 is disposed on the housing 1. The first screening module 2 includes an identification unit and a waste holding unit. The identification unit (e.g., a camera) of the first screening module 2 is installed on the top of the housing 1. The identification unit is used to determine whether the waste entering the sorting chamber 1011 from the waste inlet 102 is compressible waste (e.g., plastic bottles, paper cups, aluminum cans) or non-compressible waste (e.g., glass bottles, bricks). The first screening module 2 determines whether the waste is compressible or non-compressible through visual recognition, so that the degree of contamination of the waste can be detected in subsequent sorting. The sorting standard is set to "yes". The "whether it can be squeezed" is mainly based on three advantages of using squeezing to determine the degree of contamination: First, squeezing the waste can separate contaminants (such as oil stains or residual liquid) from the waste, which is equivalent to cleaning the waste and allowing it to enter the specific storage chamber 1014 in a relatively dry state; Second, the squeezing process can expose the contaminants originally wrapped inside the waste (such as oil stains absorbed by paper towels) to the surface, avoiding misjudgment due to the inability to detect internal contamination, thereby improving the accuracy of the waste contamination degree determination; Third, squeezing can compress the volume of the waste to facilitate subsequent transportation and storage.

[0041] The waste holding section is used to separate and store compressible and non-compressible waste. The waste holding section temporarily stores the waste according to the classification result. The waste holding section is equipped with a discharge structure (e.g., an openable flap or push plate 903). When the discharge mechanism is opened, the discharge structure discharges compressible or non-compressible waste. As a preferred design, the discharge mechanism is located at the bottom of the waste holding section, so that when the discharge mechanism is opened, the waste in the waste holding section falls down by gravity and is discharged, which is conducive to emptying the waste in the waste holding section.

[0042] The first conveying mechanism 3 is located in the sorting chamber 1011. The first conveying mechanism 3 receives the waste discharged by the discharge structure and transfers the waste to the first detection chamber 1012 or the second detection chamber 1013 respectively. After the discharge mechanism is opened, the waste falls onto the first conveying mechanism 3 (e.g., a conveyor belt) by gravity. According to the classification of the waste, the first conveying mechanism 3 transfers non-compressible waste to the first detection chamber 1012 and compressible waste to the second detection chamber 1013.

[0043] The first contamination detection unit 4 is installed inside the first detection chamber 1012. The first contamination detection unit 4 (e.g., using an optical sensor, humidity sensor, or chemical sensor) is used to detect the degree of contamination of the non-compressible waste. Since contaminants are difficult to penetrate into the non-compressible waste, the first contamination detection unit 4 can determine the degree of contamination of the non-compressible waste by detecting whether there are contaminants on the surface of the non-compressible waste. At the same time, it avoids compressing the non-compressible waste and causing it to break, thus ensuring the integrity of the non-compressible waste and facilitating subsequent secondary processing.

[0044] The second pollution detection unit 5 is installed inside the second detection chamber 1013. The second pollution detection unit 5 has a squeezing part for squeezing compressible waste. The second pollution detection unit 5 separates pollutants from compressible waste by squeezing the compressible waste, and determines the degree of pollution of the waste by statistically analyzing the weight of the pollutants.

[0045] The second conveying mechanism 6 is disposed on the housing 1, and the second conveying mechanism 6 is respectively connected to the first detection chamber 1012, the second detection chamber 1013 and the plurality of storage chambers 1014; the second conveying mechanism 6 is used to convey the waste in the first detection chamber 1012 or the second detection chamber 1013 to the corresponding storage chamber 1014; according to the detection results of the non-compressible waste in the first detection chamber 1012 and the detection results of the compressible waste in the second detection chamber 1013; the non-compressible waste and the compressible waste are conveyed to the corresponding storage chamber 1014 (e.g., recyclable waste storage chamber, other waste storage chamber) through the second conveying mechanism 6.

[0046] The first screening module 2, the first conveying mechanism 3, the first contamination detection unit 4, the second contamination detection unit 5, and the second conveying mechanism 6 are all electrically connected to the control system 7. The control system 7 is a control circuit board mounted on the housing 1 or a control program on an external electronic device.

[0047] Specifically, the working principle of the present invention is as follows: After the waste sorting device with pollution level determination function is started, the control system 7 initializes the electronic control components (e.g., motors) of the first screening module 2, the first conveying mechanism 3, the first pollution detection unit 4, the second pollution detection unit 5, and the second conveying mechanism 6. The user puts the waste into the waste inlet 102 at the top of the housing 1, and the waste falls into the sorting chamber 1011 under the action of gravity.

[0048] The identification unit (camera) of the first screening module 2 captures images of waste falling or already in the sorting chamber 1011 and transmits them to the control system 7. The control system 7 determines whether the waste is compressible or incompressible based on the image. According to the determination, the control system 7 sends a signal to the drive component in the waste receiving section, which temporarily stores the waste in the corresponding receiving area. Subsequently, the control system 7 opens the discharge structure at the bottom of the waste receiving section, and the waste falls to the first conveying mechanism 3 under gravity. If the waste is incompressible, the control system 7 drives the first conveying mechanism 3 to transport it to the first detection chamber 1012; if it is compressible, the control system 7 drives the first conveying mechanism 3 to transport it to the second detection chamber 1013. After the incompressible waste enters the first detection chamber 1012, the first contamination detection unit 4 detects whether there are contaminants such as oil or residual liquid on the surface of the incompressible waste. The detection data is transmitted to the control system 7. The second pollution detection unit 5 separates internal contaminants (such as oil stains absorbed by paper towels or residual liquid in bottles) from the garbage by squeezing the compressible waste, and weighs or quantitatively detects the separated contaminants, transmitting the detection data synchronously to the control system 7. The control system 7 compares the detection data from the first pollution detection unit 4 and the second pollution detection unit 5 with preset pollution standard values ​​(for example, if the contaminants separated in the first pollution unit 4 reach 5 grams, it meets the light pollution standard), and controls the second conveying mechanism 6 to transport the waste from the first detection chamber 1012 or the second detection chamber 1013 to the corresponding storage chamber 1014 (for example, if it is a clean aluminum can, the can is flattened by the second pollution detection unit 5 in the second detection chamber 1013 and then conveyed to the recyclable waste storage chamber by the second conveying mechanism 6). This invention classifies waste based on the standard of "whether it can be squeezed subjectively," and then adopts appropriate pollution detection methods for different types of waste. This design facilitates the assessment of the pollution level of various types of waste and distinguishes waste according to the pollution level, thereby achieving more detailed waste classification.

[0049] like Figures 1 to 3 As shown, preferably, the first screening module 2 includes a first camera 201, a trash can 202, a tray 203, and a first driving mechanism 204; the first camera 201 is disposed on the housing 1, and the first camera 201 is the identification part of the first screening module 2; and is located directly above the trash inlet 102 to have a better shooting angle; the trash can 202 is disposed in the sorting chamber 1011, and the trash can 202 has a compressible trash receiving chamber 2021 and a non-compressible trash receiving chamber 2022;

[0050] Both the compressible waste receiving cavity 2021 and the non-compressible waste receiving cavity 2022 are connected to the sorting cavity 1011. The bottom of the compressible waste receiving cavity 2021 is provided with a first door plate 2023, which is used to open or close the compressible waste receiving cavity 2021. The bottom of the non-compressible waste receiving cavity 2022 is provided with a second door plate 2024, which is used to open or close the non-compressible waste receiving cavity 2022. Both the first door plate 2023 and the second door plate 2024 are electrically connected to the control system 7. The first door plate 2023 and the second door plate 2024 form the discharge structure of the first screening module 2. The first door plate 2023 and the second door plate 2024 are electric doors. By controlling the opening or closing of the first door plate 2023 and the second door plate 2024, the control system 7 can selectively discharge compressible or non-compressible waste onto the first conveying mechanism 3.

[0051] The tray 203 is disposed on the trash can 202 and located above the compressible trash cavity 2021 and the non-compressible trash cavity 2022, so that when the tray 203 is tilted, the trash is poured into the compressible trash cavity 2021 or the non-compressible trash cavity 2022; and the compressible trash cavity 2021 and the non-compressible trash cavity 2022 are located on opposite horizontal sides of the tray 203, with the tray 203 installed in the center of the trash can 202, with the non-compressible trash cavity 2022 on the left and the compressible trash cavity 2021 on the right; the tray 203 is located on .... 03 is used to receive garbage entering the sorting chamber 1011 from the garbage inlet 102. After the garbage enters the sorting chamber 1011 from the garbage inlet 102, it falls onto the support tray 203 by gravity, so that the first camera 201 can capture the garbage in a stationary state to obtain a clearer image and improve the judgment accuracy of the control system 7. The first drive mechanism 204 (e.g., a stepper motor) is driven to the support tray 203 so that the support tray 203 swings around the first drive mechanism 204 to dump the garbage into the compressible garbage receiving chamber 2021 or the non-compressible garbage receiving chamber 2022.

[0052] like Figures 1 to 3As shown, preferably, the first conveying mechanism 3 is located below the trash can 202; the first conveying mechanism 3 includes a second driving mechanism 301, a first connecting rod 302, a second connecting rod 303, and a conveyor belt mechanism 304; the second driving mechanism 301 (e.g., a stepper motor), the first connecting rod 302, the second connecting rod 303, and the conveyor belt mechanism 304 are sequentially driven and connected, one end of the first connecting rod 302 is sleeved on the drive shaft of the second driving mechanism 301, and the other end is pivotally connected to the second connecting rod 303, the swing end of the second connecting rod 303 relative to the first connecting rod 302 is pivotally connected to the conveyor belt mechanism 304, so that the second driving mechanism 301, the first connecting rod 302, and the second connecting rod 303 form a crank-rocker mechanism; so that the conveyor belt mechanism 304 can rotate around it and the trash can 202. The connection point of the second link 303 swings. When the second drive mechanism 301 is working, the drive shaft rotates, causing the first link 302 and the second link 303 to swing sequentially, ultimately transforming the conveyor belt mechanism 304 into a seesaw-like up-and-down swing. The conveyor belt mechanism 304 extends horizontally, with both ends extending into the first detection chamber 1012 and the second detection chamber 1013, respectively. When non-compressible waste needs to be conveyed to the first detection chamber 1012, the left end of the conveyor belt mechanism 304 is lower and the right end is higher. When non-compressible waste needs to be conveyed to the second detection chamber 1013, the left end of the conveyor belt mechanism 304 is higher and the right end is lower, so that the waste slides on the conveyor belt mechanism 304 by gravity, preventing the waste from sticking to the conveyor belt mechanism 304. As a further improvement, multiple baffles can be spaced out on the conveyor belt mechanism 304 so that multiple different types of waste are located between two adjacent baffles, facilitating subsequent individual detection of the waste.

[0053] like Figures 1 to 3 As shown, preferably, the plurality of storage chambers 1014 are distributed sequentially at intervals along the vertical direction; among the plurality of storage chambers 1014, at least one is a food waste storage chamber 10141. Specifically, the plurality of storage chambers 1014 are located above the second detection chamber 1013, and the plurality of storage chambers 1014 are arranged sequentially along the height direction of the shell 1 to reduce the floor space occupied. The reason for setting up the food waste storage chamber 10141 here is not simply for waste sorting, but because of the characteristics of food waste, it must carry oil or residual liquid. Therefore, food waste belongs to the category of compressible waste that is exempt from inspection. After entering the second detection chamber 1013 and before being detected by the second pollution detection unit 5, it needs to be separated from other compressible waste (such as plastic bottles, cans, or packaging bags) to prevent the pollutants carried by the food waste from adhering to the surface of the other compressible waste, thereby reducing the probability of misjudgment when subsequently detecting these wastes.

[0054] like Figures 1 to 3As shown, preferably, among the plurality of storage chambers 1014, at least one recyclable waste temporary storage chamber 10142 and one other waste temporary storage chamber 10143 are included, and at least one corresponding recyclable waste storage chamber and at least one other waste storage chamber should also be included (not shown in the figures). It can be understood that, based on the detection result generated by the second pollution detection unit 5 squeezing the waste: if the detection is unqualified, it is conveyed to the recyclable waste temporary storage chamber 10142 or the other waste temporary storage chamber 10143 for storage through the second conveying mechanism 6. After being decontaminated in the recyclable waste temporary storage chamber 10142 or the other waste temporary storage chamber 10143 (e.g., settling, draining, air drying), it is then conveyed to the recyclable waste storage chamber or the other waste storage chamber for storage; if the detection is qualified, the waste is directly conveyed to the recyclable waste storage chamber or the other waste storage chamber for storage through the second conveying mechanism 6.

[0055] like Figures 1 to 3 As shown, preferably, the second detection chamber 1013 is provided with a transition slide 8, which is located between the conveyor belt mechanism 304 and the second pollution detection unit 5. Specifically, the transition slide 8 has a sloping surface, and the compressible waste falls from the end of the conveyor belt mechanism 304 to the transition slide 8 and slides down the sloping surface of the transition slide 8 to the detection area of ​​the second pollution detection unit 5 by gravity. This allows for the differentiation and identification of kitchen waste and other compressible waste on the transition slide 8 before the compressible waste enters the detection area of ​​the second pollution detection unit 5. The transition slide 8 can dock with the end of the conveyor belt mechanism 304 to receive the compressible waste transported on the conveyor belt mechanism 304.

[0056] The waste sorting device with pollution level determination function further includes a second screening module 9 and a third conveying mechanism 10; the second screening module 9 includes an electric slide 901, a second camera 902, and a pusher plate 903; the electric slide 901 is slidably connected to the top wall of the second detection chamber 1013, and the electric slide 901 can reciprocate along the width direction of the transition slide 8; the second camera 902 is disposed on the electric slide 901, the second camera 902 faces the transition slide 8, the camera is electrically connected to the control system 7, and the second camera 902 is used to capture images of waste at the end of the conveyor belt mechanism 304; the pusher plate 903 abuts against the table surface of the transition slide 8; the pusher plate 903 and the electric slide 901 The system is linked to move the electric slide 901 back and forth along the width of the transition slide 8. Specifically, when the compressible waste is located on the slope of the transition slide 8, the second camera 902 captures an image of the waste and transmits it to the control system 7. The control system 7 decides whether to activate the electric slide 901 based on whether the waste is kitchen waste. If the compressible waste is not kitchen waste, the electric slide 901 is not activated, and the waste slides down the transition slide 8 to the detection area of ​​the second pollution detection unit 5 for detection. If the compressible waste is kitchen waste, the electric slide 901 is activated, and the electric slide 901 drives the pusher 903 to move from one end of the transition slide 8 to the other end, thereby pushing the kitchen waste to the other end of the transition slide 8 for subsequent collection.

[0057] The third conveying mechanism 10 includes a spiral conveyor cylinder 1001 and a third driving mechanism 1002, which together form a spiral conveyor. The spiral conveyor cylinder 1001 extends vertically and sequentially passes through multiple storage cavities 1014. The inlet of the spiral conveyor cylinder 1001 is connected to the transition slide 8, and the outlet of the spiral conveyor cylinder 1001 is connected to the food waste storage cavity 10141. The third driving mechanism 1002 is driven by the spiral conveyor cylinder 1001 to drive the spiral conveyor cylinder 1001 to rotate around its own axis. The third driving mechanism 1002 is electrically connected to the control system 7. Specifically, the electric slide 901 drives the pusher plate 903 to push the food waste to the end of the transition slide 8 and then it falls into the inlet of the spiral conveyor cylinder 1001. The spiral conveyor cylinder 1001 carries the food waste up to the outlet and enters the food waste storage cavity 10141 for storage.

[0058] like Figures 1 to 3As shown, preferably, the first pollution detection unit 4 includes a flip plate 401, a light source 402, and a photoelectric sensor 403; the flip plate 401 is pivotally connected to the inner wall of the first detection cavity 1012, so that the swing end of the flip plate 401 can swing around the pivot end of the flip plate 401; the swing end of the flip plate 401 abuts against the end of the conveyor belt mechanism 304, so that incompressible waste touches the flip plate 401 when it slides out of the conveyor belt mechanism 304; the light source 402 is located on the side of the flip plate 401 facing the conveyor belt mechanism 304, so that the light source 402 illuminates the incompressible waste, and the light source 402 can be an LED lamp; the photoelectric sensor 403 is used to receive the reflected light from the incompressible waste, and the photoelectric sensor 403 is electrically connected to the control system 7. Specifically, taking a glass block as an example: when the glass block is conveyed to the left end on the conveyor belt mechanism 304, it contacts the flip plate 401. At this time, the light source 402 shines on the glass surface, generating reflected light; the photoelectric sensor 403 receives the reflected light and evaluates its diffuse reflection characteristics, transmitting the collected data to the control system 7. Based on this, the control system 7 determines the degree of contamination on the glass surface and marks it as qualified or unqualified, in order to decide whether to subsequently transfer it to the other waste temporary storage chamber 10143 or the recyclable waste storage chamber.

[0059] like Figures 1 to 3As shown, preferably, the second pollution detection unit 5 includes a sieve plate 501, at least one squeezing mechanism 502, a seepage collection box 503, and a weight sensor 504; the sieve plate 501 is located at the bottom of the second detection chamber 1013; the sieve plate 501 has multiple seepage holes 5011, the seepage holes 5011 penetrate the wall thickness of the sieve plate 501, some of the seepage holes 5011 are distributed at intervals along the length direction of the sieve plate 501, and some of the seepage holes 5011 are distributed at intervals along the width direction of the sieve plate 501; the squeezing mechanism 502 is located on the inner wall of the second detection chamber 1013, and the squeezing mechanism 502 is the squeezing part of the second pollution detection unit 5, and the squeezing mechanism 502 can adopt a commonly used structure (electric push rod + pressure plate or hydraulic rod + pressure plate); based on the fact that the squeezing mechanism 502 can reciprocate in the horizontal or vertical direction, a maximum of three sets of squeezing mechanisms 502 can be set, respectively along the front-back direction, left-right direction, and top direction. The downward movement, with multiple sets of squeezing mechanisms 502, facilitates further compression of the compressible waste; it moves closer to and squeezes the compressible waste, or away from the already flattened compressible waste; the leachate collection box 503 is located below the sieve plate 501 to collect the leachate overflowing during the squeezing process of the compressible waste. As a preferred design, the leachate collection box 503 is detachably connected to the housing 1 so that the leachate collection box 503 can be pulled out and the leachate poured out after it is full; the weight sensor 504 is installed on the leachate collection box 503. The weight sensor 504 is used to detect the weight change of the leachate collection box 503. The weight sensor 504 is electrically connected to the control system 7. The weight sensor 504 is installed at the bottom of the leachate collection box 503 to avoid direct contact with the leachate. By sensing the weight change of the leachate collection box 503, the amount of leachate squeezed out of the waste can be determined, which can be used by the control system 7 to determine the degree of pollution.

[0060] like Figures 1 to 4As shown, preferably, the second conveying mechanism 6 includes a conveying pipe 601, a plurality of control valves 602, and a plurality of negative pressure suction machines 603; the conveying pipe 601 is respectively connected to the first detection chamber 1012, the second detection chamber 1013, and the plurality of storage chambers 1014; each control valve 602 is correspondingly located at the connection point of the conveying pipe 601 with the first detection chamber 1012, or with the second detection chamber 1013, or with the plurality of storage chambers 1014; the plurality of control valves 602 are electrically connected to the control system 7; and the conveying pipe 601 constitutes the second conveyor. The conveying path of structure 6 can be constructed in the conveying pipe 601 by opening and closing different control valves 602, which is simpler than the complex conveyor belt structure. Each of the negative pressure suction machines 603 is installed in the storage chamber 1014 in a corresponding manner, and the multiple negative pressure suction machines 603 are electrically connected to the control system 7. The negative pressure suction machine 603 has two functions: first, to suck the garbage from the first detection chamber 1012 or the second detection chamber 1013 into the specific storage chamber 1014 for storage; second, the negative pressure suction machine 603 can act as a fan to dry and deodorize the garbage in the storage chamber 1014 under normal conditions. Specifically, the control system 7 identifies and classifies each piece of garbage according to the detection data of the first pollution detection unit 4 or the second pollution detection unit 5. Taking glass bottles as an example: glass bottles are non-compressible garbage. After the first detection chamber 1012 completes the detection, if the detection is qualified, the control system 7 determines that it is recyclable garbage. At this time, the control system 7 controls the opening of the control valves 602 at the first detection chamber 1012 and the recyclable waste storage chamber, connecting them, while simultaneously closing other control valves 602 to prevent waste from accidentally entering the non-target storage chamber 1014 or the second detection chamber 1013. Subsequently, the negative pressure suction machine 603 operating in the recyclable waste storage chamber sucks the glass bottle from the first detection chamber 1012 into the recyclable waste storage chamber through the transmission pipe 601. If the detection fails, the glass bottle is judged as other waste and needs to be sent to the other waste temporary storage chamber 10143 first. In the other waste temporary storage chamber 10143, the negative pressure suction machine 603 dries the bottle, and after the contaminants are removed, the glass bottle can be restored to recyclable waste. At this time, the control system 7 can connect the other waste temporary storage chamber 10143 and the recyclable waste storage chamber, so that the dried glass bottle can be stored in the recyclable waste storage chamber.

[0061] Through the above methods, waste whose classification has changed due to the degree of pollution can be returned to its original category after decontamination treatment, thereby improving the accuracy of waste classification and the resource recycling rate.

[0062] like Figure 2As shown, preferably, the waste sorting device with pollution level determination function further includes a gripping mechanism 11, which is a robotic arm. This robotic arm can be a gripper-type robotic arm, picking up waste by clamping; or it can be a suction cup-type robotic arm, using a suction cup at its end to adsorb waste. The robotic arm is located within the sorting cavity 1011. The robotic arm is used to pick up non-compressible waste from the tray 203 and place it into the non-compressible waste receiving cavity 2022. Since non-compressible waste usually has a relatively regular or hard shape, it is easy to grip or adsorb. The robotic arm is electrically connected to the control system 7, and the robotic arm is controlled to start and stop by commands from the control system 7. It can be understood that when non-compressible waste and compressible waste are mixed and placed on the tray 203, the left and right tilting of the tray 203 alone cannot complete the sorting of the two types of waste. At this time, the control system 7, based on the image information collected by the first camera 201, simultaneously identifies multiple types of waste and controls the gripping mechanism 11 to grab the non-compressible waste and place it into the non-compressible waste receiving cavity 2022 for temporary storage. When the first camera 201 detects that only compressible waste remains on the tray 203, the control system 7 drives the first drive mechanism 204 to work, causing the tray 203 to swing towards the compressible waste receiving cavity 2021, thereby pouring the remaining compressible waste into the compressible waste receiving cavity 2021. By setting up the gripping mechanism 11, this device can cope with the more complex and realistic mixed waste screening needs in the sorting cavity 1011.

[0063] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0065] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A waste sorting device with a pollution level determination function, characterized in that, include: The housing has a receiving cavity and a waste inlet, the receiving cavity including a sorting cavity, a first detection cavity, a second detection cavity and multiple storage cavities; The sorting chamber, the first detection chamber, the second detection chamber, and the plurality of storage chambers are sequentially connected; the sorting chamber is connected to the external environment through the waste inlet; the first detection chamber and the second detection chamber are located on opposite sides of the sorting chamber. A first screening module is disposed in the housing and includes an identification unit and a waste holding unit. The identification unit is used to determine whether the waste entering the sorting chamber from the waste inlet is compressible or non-compressible waste. The waste holding unit is used to separate and store the compressible and non-compressible waste. The waste holding unit is provided with a discharge structure. When the discharge structure is opened, the discharge structure discharges the sorted waste. A first conveying mechanism is located inside the sorting chamber. The conveying mechanism receives the waste discharged by the discharge structure and transfers the waste to the first detection chamber or the second detection chamber respectively. The first pollution detection unit is installed inside the first detection chamber and is used to detect the degree of pollution of incompressible waste. The second pollution detection unit is installed inside the second detection chamber. The second pollution detection unit has a squeezing part for squeezing squeezing compressible waste. A second transmission mechanism is disposed in the housing and is connected to the first detection cavity, the second detection cavity and the plurality of storage cavities respectively. The second conveying mechanism is used to convey the waste in the first detection chamber or the second detection chamber to the corresponding storage chamber; The control system includes the first screening module, the first conveying mechanism, the first pollution detection unit, the second pollution detection unit, and the second conveying mechanism, all of which are electrically connected to the control system.

2. The waste sorting device with pollution level determination function according to claim 1, characterized in that: The first screening module includes a first camera, a trash can, a tray, and a first drive mechanism; the first camera is disposed in the housing and located directly above the trash inlet; the trash can is disposed in the sorting chamber, and the trash can has a compressible trash receiving chamber and a non-compressible trash receiving chamber; Both the compressible waste container and the non-compressible waste container are connected to the sorting chamber; the bottom of the compressible waste container is provided with a first door panel, which is used to open or close the compressible waste container; the bottom of the non-compressible waste container is provided with a second door panel, which is used to open or close the non-compressible waste container; both the first door panel and the second door panel are electrically connected to the control system. The tray is disposed on the trash can and located above the compressible trash cavity and the non-compressible trash cavity, with the compressible trash cavity and the non-compressible trash cavity located on opposite horizontal sides of the tray. The tray is used to receive trash entering the sorting cavity from the trash inlet. The first drive mechanism is drivenly connected to the tray so that the tray swings around the first drive mechanism to dump the trash into the compressible trash cavity or the non-compressible trash cavity.

3. A waste sorting device with pollution level determination function according to claim 2, characterized in that: The first conveying mechanism is located below the trash can; the first conveying mechanism includes a second driving mechanism, a first connecting rod, a second connecting rod, and a conveyor belt mechanism; the second driving mechanism, the first connecting rod, the second connecting rod, and the conveyor belt mechanism are sequentially driven and connected so that the conveyor belt mechanism can swing around its connection point with the second connecting rod, the conveyor belt mechanism extends horizontally, and both ends of the conveyor belt mechanism extend into the first detection cavity and the second detection cavity, respectively.

4. A waste sorting device with pollution level determination function according to claim 3, characterized in that: The plurality of storage cavities are distributed sequentially at intervals along the vertical direction; among the plurality of storage cavities, at least one is a food waste storage cavity.

5. A waste sorting device with pollution level determination function according to claim 4, characterized in that: Among the plurality of storage cavities, at least one recyclable waste storage cavity and one other waste storage cavity are included.

6. A waste sorting device with pollution level determination function according to claim 4, characterized in that: The second detection chamber is provided with a transition slide, which is located between the conveyor belt mechanism and the second pollution detection unit; the transition slide can dock with the end of the conveyor belt mechanism to receive the compressible waste transported on the conveyor belt mechanism. The waste sorting device with pollution level determination function further includes a second screening module and a third conveying mechanism; the second screening module includes an electric slide, a second camera, and a pusher plate; the electric slide is slidably connected to the top wall of the second detection chamber, and the electric slide can reciprocate along the width direction of the transition slide; the second camera is disposed on the electric slide and is electrically connected to the control system, and is used to capture images of waste at the end of the conveyor belt mechanism; the pusher plate abuts against the table surface of the transition slide; the pusher plate is linked to the electric slide to follow the electric slide in reciprocating along the width direction of the transition slide; The third conveying mechanism includes a spiral conveying cylinder and a third driving mechanism; the spiral conveying cylinder extends vertically and sequentially passes through multiple storage cavities; the inlet of the spiral conveying cylinder is connected to the transition slide, and the outlet of the spiral conveying cylinder is connected to the kitchen waste storage cavity; the third driving mechanism is drivenly connected to the spiral conveying cylinder to drive the spiral conveying cylinder to rotate around its own axis; the third driving mechanism is electrically connected to the control system.

7. A waste sorting device with pollution level determination function according to claim 3, characterized in that: The first pollution detection unit includes a flip plate, a light source, and a photoelectric sensor; the flip plate is pivotally connected to the inner wall of the first detection chamber so that the swing end of the flip plate can swing around the pivot end of the flip plate; the swing end of the flip plate abuts against the end of the conveyor belt mechanism; the light source is located on the side of the flip plate facing the conveyor belt mechanism so that the light source illuminates the non-crushable waste; the photoelectric sensor is used to receive reflected light from the non-crushable waste, and the photoelectric sensor is electrically connected to the control system.

8. A waste sorting device with pollution level determination function according to claim 4, characterized in that: The second pollution detection unit includes a sieve plate, at least one squeezing mechanism, a leachate collection box, and a weight sensor. The sieve plate is located at the bottom of the second detection chamber. The sieve plate has multiple leakage holes that extend through the wall thickness of the sieve plate. Some of the leakage holes are spaced apart along the length of the sieve plate, and some are spaced apart along the width of the sieve plate. The squeezing mechanism is located on the inner wall of the second detection chamber and can reciprocate horizontally or vertically to approach and squeeze compressible waste or move away from compressed compressible waste. The leachate collection box is located below the sieve plate to collect leachate that overflows during the squeezing process. The weight sensor is installed in the leachate collection box and is used to detect changes in the weight of the leachate collection box. The weight sensor is electrically connected to the control system.

9. A waste sorting device with pollution level determination function according to claim 5, characterized in that: The second conveying mechanism includes a conveying pipe, multiple control valves, and multiple negative pressure suction machines; the conveying pipe is connected to the first detection chamber, the second detection chamber, and the multiple storage chambers respectively; each control valve is correspondingly located at the connection point between the conveying pipe and the first detection chamber, or the connection point between the conveying pipe and the second detection chamber, or the connection point between the conveying pipe and the multiple storage chambers, and the multiple control valves are electrically connected to the control system; each negative pressure suction machine is correspondingly installed in each storage chamber, and the multiple negative pressure suction machines are electrically connected to the control system.

10. A waste sorting device with pollution level determination function according to claim 2, characterized in that: The waste sorting device with pollution level determination function further includes a gripping mechanism, which is a robotic arm. The robotic arm is located in the sorting cavity and is used to pick up non-compressible waste from the tray and place the non-compressible waste into the non-compressible waste receiving cavity. The robotic arm is electrically connected to the control system.

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