Closed sorting collection trolley

Abstract

The present invention discloses a closed sorting collection trolley, comprising: a garbage bin and a vehicle base, wherein the garbage bin comprises at least two independent garbage bin units for loading different types of garbage separately; the garbage bin units comprise: a bin body for carrying garbage, a feeding mechanism arranged on the top of the bin body for putting in garbage and capable of self-reset and closing, a discharging mechanism arranged on the top of the bin body for discharging garbage from the bin body, a rotating mechanism arranged at the bottom of the bin body and deviating from the center of gravity of the bin body for flipping the bin body relative to the vehicle base so that garbage can be discharged from the discharging mechanism, and a limiting mechanism for locking the bin body to limit the flipping of the bin body; the bin body, the feeding mechanism and the discharging mechanism are assembled to form a closed space for accommodating garbage. In the closed sorting collection trolley of the present invention, the garbage bin comprises a plurality of independent garbage bin units for realizing the sorting and collection of different types of garbage, and automatic unloading can be realized by releasing the restriction of the limiting mechanism.

Description

Technical Field

[0001] The present invention relates to the field of garbage transportation, and in particular to a closed classification collection trolley. Background Art

[0002] At present, with the country vigorously advocating the construction of ecological civilization, more and more attention has been paid to the environmental sanitation problems in cities and rural areas. In the process of handling solid waste, garbage collection is the first step, and sanitation trolleys are commonly used tools for sanitation workers to clean roads. Various sanitation trolleys have emerged in an endless stream. Whether they are two-wheeled or three-wheeled hand-pushed ones, or electric assisted ones, they all have the following problems to be solved: Commonly used sanitation trolleys are fixed on all sides and have an open top. When sanitation workers transport garbage, there will be a pungent smell in the sanitation trolley, which affects the surrounding environment; garbage bins are not collected in a classified manner, and the corresponding compartments need to be cleaned; because municipal sanitation workers are generally older and physically weak, sanitation trolleys need to solve the problem that when unloading garbage from the garbage bin, the entire sanitation trolley must be overturned to dump the garbage, which is not convenient for rapid garbage disposal. Summary of the invention

[0003] The invention provides a closed classification collection trolley to solve the technical problems that the existing trolley is time-consuming and labor-intensive to unload garbage and the garbage cannot be collected in a classified manner.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A closed sorting collection trolley is used for sorting, collecting, transporting and unloading garbage, comprising: a garbage bin and a vehicle base for supporting the garbage bin and driving the garbage bin to move, the garbage bin comprising at least two independent garbage bin units for loading different categories of garbage separately, the garbage bin units are arranged in sequence along the width of the closed sorting collection trolley, and the garbage bin units are dumped into the corresponding categories of garbage by turning the different garbage bin units forward; the garbage bin units comprise: a bin body for carrying garbage, a feeding mechanism arranged on the top of the bin body for throwing in garbage and being able to reset and close automatically, a discharging mechanism arranged on the top of the bin body for discharging garbage from the bin body, a rotating mechanism arranged at the bottom of the bin body and deviating from the center of gravity of the bin body for turning the bin body relative to the vehicle base so that the garbage is discharged from the discharging mechanism, and a limiting mechanism for locking the bin body to limit the turning of the bin body; the bin body, the feeding mechanism and the discharging mechanism are assembled to form a closed space for accommodating garbage.

[0006] Furthermore, the box body has a U-shaped base structure for flipping the box body relative to the vehicle base so that the garbage can be discharged along the discharge mechanism; the vehicle base includes a frame, wheels, an axle and a load-bearing rod; the axle is rotatably connected to the frame, and the two wheels are respectively arranged at both ends of the axle; or, the axle is fixedly connected to the frame, and the two wheels are respectively rotatably connected to the two ends of the axle; the load-bearing rod is located on the side of the frame away from the flipping direction of the box body and is arranged at intervals from the rotating mechanism, so that the box body can automatically flip after the limit mechanism is released; the rotating mechanism adopts an axial hole for rotationally connecting with the axle, and the axle passes through the axial hole to realize the flipping of the box body around the axle.

[0007] Furthermore, the limiting mechanism adopts one of the following methods: snap-on limiting, clamping limiting or plug-in limiting.

[0008] Furthermore, the frame is provided with a limiting hole for cooperating with the limiting mechanism, and the limiting mechanism comprises a pin hole and a pin shaft which are arranged at the bottom of the box body and coaxially cooperate with the limiting hole.

[0009] Furthermore, the box body also includes a filtering device for solid-liquid separation of garbage, the filtering device includes a filtering mechanism close to the bottom of the box body and a blocking mechanism along both ends of the filtering mechanism away from the bottom of the box body, the blocking mechanism is arranged obliquely and forms a liquid storage cavity with the filtering mechanism and the bottom of the box body for accommodating liquid percolated from the garbage in the box body; the filtering mechanism is provided with filtering holes for percolated liquid to filter the liquid above the filtering device to the bottom of the box body for storage; the blocking mechanism is sealed with the inner side wall of the box body to block the liquid through the blocking mechanism when the box body rotates and flips over, so as to prevent the liquid from flowing back through the filtering holes and flowing out from the discharging mechanism.

[0010] Furthermore, the barrier mechanism extending along one end of the filter mechanism is in a downwardly concave arc structure, so that the base structure formed by the filter mechanism and the barrier mechanism matches the U-shaped base structure of the box body; a gate valve for controlling liquid discharge is provided at the bottom of the box body.

[0011] Furthermore, the discharging mechanism includes a slide rail arranged parallel to the flipping direction of the box body, a sliding cover arranged on the slide rail and slidably cooperates with the slide rail to control the opening and closing of the discharging outlet, and a positioning block for sliding positioning of the sliding cover; the horizontal height of the feeding mechanism is lower than the horizontal height of the slide rail to increase the opening area of ​​the discharging outlet.

[0012] Furthermore, the feeding mechanism includes a box door and a hinged member for being hingedly connected to the box body, and an elastic member arranged at the hinge between the box body and the box door for the box door to reset and close itself, so that the feeding mechanism is in a normally closed state.

[0013] Furthermore, a buffer mechanism is provided at the front end of the box body. After the limiting mechanism releases the garbage in the box body, the box body contacts the ground through the buffer mechanism when it automatically dumps, thereby avoiding impact damage and impact noise; a guide plate is provided at the front end of the box body for exporting the garbage, thereby avoiding the garbage from accumulating in the discharging mechanism and being unable to be completely poured out; a vibration mechanism is provided on the box body for generating vibration when dumping the garbage, thereby accelerating the output of the garbage and avoiding garbage retention.

[0014] Furthermore, a handle is provided on the vehicle base, away from the flipping direction of the box body; a storage box with a drainage hole for temporarily storing cleaning tools is provided in the handle area, or a storage box with a drainage hole for temporarily storing cleaning tools is provided in the outer area of ​​the trash can, and a waterproof sealing layer is provided on the inner wall of the box body; the vehicle base also includes universal wheels.

[0015] The present invention has the following beneficial effects:

[0016] The closed classification collection trolley of the present invention comprises a plurality of independent rubbish bin units to realize the classification collection of different rubbish, and each rubbish bin unit comprises a bin body, a feeding mechanism, a discharging mechanism, a rotating mechanism and a limiting mechanism. The bin body is fixed on the vehicle base through the limiting mechanism, and the rubbish enters the bin body through the feeding mechanism to realize the collection and transportation of the rubbish. When unloading the rubbish, the restriction of the limiting mechanism is released, and the rotating mechanism at the bottom of the bin body deviates from the center of gravity and is acted upon by gravity, so that the bin body tilts relative to the vehicle base, and the rubbish in the bin body can slide out through the discharging mechanism along the tilted bin body, which is convenient for sanitation workers to quickly dump the rubbish and reduce the physical labor of sanitation workers. Moreover, the bin body, the feeding mechanism and the discharging mechanism are assembled into a closed space, which effectively prevents the overflow of rubbish and reduces the overflow of pungent odor during the transportation of rubbish. In addition, the above-mentioned rubbish bin comprises a plurality of independent rubbish bin units, and each rubbish bin unit can be controlled separately, so that the rubbish can be unloaded in batches and by type to meet the demand for classified treatment of rubbish.

[0017] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of a closed classification collection trolley according to a preferred embodiment of the present invention;

[0020] Figure 2is a schematic diagram of the three-dimensional structure of a garbage bin unit according to a preferred embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of a closed type classified collection trolley unloading garbage according to a preferred embodiment of the present invention; and

[0022] Figure 4 It is a schematic diagram of a vehicle base according to a preferred embodiment of the present invention.

[0023] Description of Figure Numbers:

[0024] 1. Trash bin; 11. Bin body; 12. Feed mechanism; 13. Discharge mechanism; 131. Slide rail; 132. Slide cover; 14. Rotation mechanism; 15. Limiting mechanism; 16. Filter device; 161. Filter mechanism; 162. Blocking mechanism; 1611. Filter hole; 17. Gate valve; 2. Vehicle base; 21. Vehicle frame; 22. Wheel; 23. Axle; 24. Load-bearing rod; 25. Storage box; 26. Universal wheel. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of a closed classification collection trolley according to a preferred embodiment of the present invention; Figure 2 is a schematic diagram of the three-dimensional structure of a garbage bin unit according to a preferred embodiment of the present invention; Figure 3 Schematic diagram of a closed type classified collection trolley unloading garbage according to a preferred embodiment of the present invention; Figure 4 It is a schematic diagram of a vehicle base according to a preferred embodiment of the present invention.

[0027] like Figure 1 and Figure 2As shown, the closed classification collection trolley of this embodiment is used for classified collection, transportation and unloading of garbage, including: a garbage bin 1 and a vehicle base 2 for supporting the garbage bin 1 and driving the garbage bin 1 to move, the garbage bin 1 includes at least two independent garbage bin units to load different categories of garbage separately, and the garbage bin units are arranged in sequence along the width of the closed classification collection trolley, and different garbage bin units are turned forward to realize the garbage bin units to dump the corresponding categories of garbage; the garbage bin unit includes: a box body 11 for carrying garbage, arranged A feeding mechanism 12 is provided on the top of the box body 11 for placing garbage and can reset and close automatically, a discharging mechanism 13 is provided on the top of the box body 11 for discharging garbage from the box body 11, a rotating mechanism 14 is provided at the bottom of the box body 11 and deviated from the center of gravity of the box body 11 and is used for flipping the box body 11 relative to the vehicle base 2 so that the garbage can be discharged from the discharging mechanism 13, and a limiting mechanism 15 is provided for locking the box body 11 to limit the flipping of the box body 11; the box body 11, the feeding mechanism 12 and the discharging mechanism 13 are assembled to form a closed space for accommodating garbage. The closed classification collection trolley of the present invention comprises a plurality of independent rubbish bin units to realize the classification collection of different rubbish, and each rubbish bin unit comprises a bin body 11, a feeding mechanism 12, a discharging mechanism 13, a rotating mechanism 14 and a limiting mechanism 15. The bin body 11 is fixed on the vehicle base 2 through the limiting mechanism 15, and the rubbish enters the bin body 11 through the feeding mechanism 12 to realize the collection and transportation of the rubbish. When the rubbish is unloaded, the restriction of the limiting mechanism 15 is released, and the rotating mechanism 14 at the bottom of the bin body 11 deviates from the center of gravity and is acted upon by gravity, so that the bin body 11 tilts relative to the vehicle base 2, and the rubbish in the bin body 11 can slide out along the tilted bin body 11 through the discharging mechanism 13, so that the sanitation workers can quickly dump the rubbish and reduce the physical labor of the sanitation workers. In addition, the bin body 11, the feeding mechanism 12 and the discharging mechanism 13 are assembled into a closed space, which effectively prevents the overflow of rubbish and reduces the overflow of pungent odor during the transportation of rubbish. In addition, the above-mentioned garbage bin 1 includes a plurality of independent garbage bin units, each of which can be controlled separately, so that garbage can be unloaded in batches and by type to meet the needs of classified garbage processing.

[0028] The deviation of the rotation mechanism 14 from the center of gravity refers to the deviation in the direction opposite to the predetermined flipping direction of the box body 11, so that after the limit mechanism 15 is released, the box body 11 automatically flips around the rotation mechanism 14 in the direction of its center of gravity, because the support structure of the rotation mechanism 14 of the box body 11 deviates from the center of gravity of the box body 11, thereby realizing the automatic dumping of the garbage. Preferably, a drying device and an ultraviolet disinfection device are provided in the accommodating cavity of the box body 10, so as to facilitate the drying and disinfection of the garbage and facilitate the rapid disposal of the garbage.

[0029] like Figure 4As shown, in this embodiment, the box body 11 has a U-shaped base structure for flipping the box body 11 relative to the vehicle base 2 so that the garbage can be discharged along the discharge mechanism 13; the vehicle base 2 includes a frame 21, wheels 22, an axle 23 and a load-bearing rod 24; the axle 23 is rotatably connected to the frame 21, and the two wheels 22 are respectively arranged at both ends of the axle 23; or, the axle 23 is fixedly connected to the frame 21, and the two wheels 22 are respectively rotatably connected to the two ends of the axle 23; the load-bearing rod 24 is located on the side of the frame 21 away from the flipping direction of the box body 11 and is arranged at intervals from the rotating mechanism 14, so that the box body 11 can automatically flip after the limit mechanism 15 is released; the rotating mechanism 14 adopts an axial hole for rotationally connecting with the axle 23, and the axle 23 passes through the axial hole to realize the flipping of the box body 11 around the axle 23. The vehicle base 2 comprises a vehicle frame 21, wheels 22, axles 23 and load-bearing rods 24. The box body 11 is supported by the vehicle frame 21 and the load-bearing rods 24 and is fixed on the vehicle base 2 by a limiting mechanism 15. The axial hole at the bottom of the box body 11 is coaxially matched with the axle 23. When the limiting mechanism 15 releases the restriction, the box body 11 turns around the axle 23 and the load-bearing rod 24 in the opposite direction, that is, the front end of the box body 11 rotates to the ground or the pre-stop garbage unloading position, so that the garbage slides along the tilted box body 11 to the discharging mechanism 13 and is discharged from the box body 11. Multiple garbage bin units can share one axle 23, and their respective limiting mechanisms 15 control the fixing and unloading. Preferably, a pull rope can be set at one end of the box body 11 close to the load-bearing rod 24. When the garbage is unloaded, the pull rope can be pulled to make the box body 11 rotate in the opposite direction to the original position and be re-fixed on the vehicle base 2 by the limiting mechanism 15. Alternatively, a handle is provided on the box body 11, and the box body 11 is reset by pulling the handle, and is re-fixed on the vehicle base 2 through the limit mechanism 15. A lever mechanism may also be provided on the vehicle base 2, the fulcrum of the lever mechanism is provided on the vehicle base 2, the force point of the lever mechanism is connected to the front end of the box body 11, and the force application point of the lever mechanism is in the push handle area, and the force can be applied manually or by pedaling.

[0030] In this embodiment, the limiting mechanism 15 adopts one of the card-connecting limiting, clamping limiting or plug-in limiting. In this embodiment, the limiting mechanism 15 adopts one of the card-connecting limiting, clamping limiting or plug-in limiting. The above-mentioned limiting mechanism 15 fixes the box body 11 on the vehicle base 2 to prevent the box body 11 from flipping over. Since the rotating mechanism 14 deviates from the center of gravity of the box body 11 and is supported by the load-bearing rod 24, it is necessary to limit and fix to prevent the box body 11 of the closed classification collection trolley from automatically flipping over during the transportation of garbage. Preferably, the frame 21 is provided with a limiting hole for cooperating with the limiting mechanism 15, and the limiting mechanism 15 includes a pin hole and a pin shaft arranged at the bottom of the box body 11 and coaxially cooperating with the limiting hole. The above-mentioned limiting mechanism 15 uses the limiting hole, the pin hole and the pin shaft to cooperate to fix the box body 11 to the vehicle base 2.

[0031] like Figure 2 and Figure 3 As shown, in this embodiment, the box body 11 also includes a filtering device 16 for solid-liquid separation of garbage, and the filtering device 16 includes a filtering mechanism 161 close to the bottom of the box body 11 and a blocking mechanism 162 along both ends of the filtering mechanism 161 away from the bottom of the box body 11, the blocking mechanism 162 is arranged obliquely and forms a liquid storage cavity for accommodating liquid percolated from the garbage in the box body 11 between the filtering mechanism 161 and the bottom of the box body 11; the filtering mechanism 161 is provided with a filtering hole 1611 for percolated liquid, so as to filter the liquid above the filtering device 16 to the bottom of the box body 11 for storage; the blocking mechanism 162 is sealedly connected to the inner side wall of the box body 11, so as to block the liquid through the blocking mechanism 162 when the box body 11 rotates and turns over, so as to prevent the liquid from flowing back through the filtering hole 1611 and flowing out from the discharging mechanism 13. The filter device 16 is spaced apart from the bottom of the box body 11, so that the liquid storage cavity formed between the filter device 16 and the box body 11 is sufficient to accommodate the liquid filtered out by the garbage in the entire box body 11, and the liquid is discharged out through the gate valve 17 at the bottom of the box body 11. Preferably, the gate valve 17 is at the lowest point of the box body 11 to allow the liquid to be completely discharged. When the box body 11 is normally placed to store garbage, the water can flow along the surface of the barrier mechanism 162 to the filter mechanism 161 during the static process of the garbage, and flow into the bottom of the box body 11 for storage along the filter hole 1611 of the filter mechanism 161, which is conducive to separating the liquid in the garbage and preventing the garbage from being in a wet state and breeding bacteria and viruses; when the box body 11 is operated to dump the garbage in the box body 11, the filtered liquid at the bottom of the box body 11 is blocked between the barrier mechanism 162 and the bottom of the box body 11, and the filtered liquid cannot be dumped with other garbage, so the filtered liquid and the garbage can be separated and processed well. Preferably, the radial dimension of the filter hole 1611 is set according to actual conditions, and can be in millimeters, centimeters, or other dimensions; the above-mentioned filter device 16 and the box body 11 are detachably connected, which is convenient for subsequent cleaning work and for removing the filter device 16 for cleaning, but it is necessary to maintain a sealed connection between the filter device 16 and the inner wall surface of the box body 11 to prevent the liquid from flowing back into the garbage and to prevent secondary pollution to the environment.

[0032] In this embodiment, the blocking mechanism 162 extending along one end of the filter mechanism 161 is in a downwardly concave arc structure, so that the base structure formed by the filter mechanism 161 and the blocking mechanism 162 matches the U-shaped base structure of the box body 11. A gate valve 17 for controlling the discharge of liquid is provided at the bottom of the box body 11. The U-shaped structure formed by the above-mentioned filter mechanism 161 matches the U-shaped base structure of the box body 11, effectively preventing the infiltrated liquid from flowing out of the filter hole 1611. The lowest point of the filter device 16 is equivalent to the spacing of L between the filter mechanism 161 and the bottom of the garbage bin 1, ensuring that the area surrounded by the height of L can be sufficient to store the infiltrated liquid in the garbage. The purpose of setting the filter hole 1611 is that when the garbage bin 1 is placed flat on the ground, the infiltrated liquid in the garbage can flow smoothly into the liquid storage cavity at the bottom of the box body 11. The filter device 16 is sealed and connected to the inner wall surface of the box body 11. When the garbage truck is loading, the infiltrated liquid and the garbage can be separated well, and they will not enter the operation vehicle with the garbage. The gate valve 17 is provided so that the box body 11 can be in a closed state, and the odor in the box body 11 will not be dispersed into the air at will.

[0033] like Figure 2 As shown, in this embodiment, the discharge mechanism 13 includes a slide rail 131 arranged parallel to the flipping direction of the box body 11, a slide cover 132 arranged on the slide rail 131 and slidingly cooperated with the slide rail 131 to control the opening and closing of the discharge outlet, and a positioning block for sliding positioning of the slide cover 132. The horizontal height of the feed mechanism 12 is lower than the horizontal height of the slide rail 131 to increase the opening area of ​​the discharge outlet. When the garbage in the box body 11 is full and needs to be dumped, the closed classification collection trolley is stopped at the garbage transfer point, and the slide cover 132 is forced to slide in the direction of the feed mechanism 12, that is, slide in the direction of opening the garbage discharge outlet, and is positioned by the positioning block, and then the pin is pulled out from the pin hole and the limit hole. At this time, the box body 11 is reversely flipped around the axle 23 to the load-bearing rod 24, and the garbage is poured out from the discharge outlet without manual effort. Since the feeding mechanism 12 is below the horizontal plane of the slide rail 131 , the sliding stroke of the slide cover 132 is increased, and the opening of the discharge port is further increased, thereby accelerating the garbage dumping speed.

[0034] In this embodiment, the feeding mechanism 12 includes a box door and a hinged member for being hingedly connected to the box body 11, and an elastic member for the box door to automatically reset and close is arranged at the hinge of the box body 11 and the box door, so that the feeding mechanism 12 is in a normally closed state. The above-mentioned box door adopts two and is symmetrically arranged to increase the opening area. The opening direction can be set to open to the inside of the box body 11 to prevent the box door from popping out and injuring the operator. The hinged member can be a hinge to hinge the box door to the box body 11, and an elastic member for self-reset and closure is installed at the hinge. The elastic member can be a torsion spring. A torsion spring with reset function. When it is necessary to dump garbage into the box body 11, the box door can be opened by external force, and it will automatically reset and close after the external force is lost. The above-mentioned slide rail 131 is arranged above the level of the feeding mechanism 12. When dumping garbage, the slide cover 132 can be slid above the box door to prevent the box door from being squeezed and damaged by garbage when dumping garbage.

[0035] In this embodiment, a buffer mechanism is provided at the front end of the box body 11. After the limiting mechanism 15 releases the garbage in the box body 11, the box body 11 contacts the ground through the buffer mechanism when it automatically dumps, so as to avoid impact damage and impact noise. The above-mentioned buffer mechanism can adopt a buffer pad, a buffer shrapnel, a buffer airbag, etc., which effectively prevents the damage of the closed classification collection trolley by the impact force during the process of dumping the garbage. A guide plate for guiding the garbage out is provided at the front end of the box body 11 to prevent the garbage from accumulating in the discharging mechanism 13 and being unable to be completely poured out. The above-mentioned guide plate is in an arc shape, a semi-cylindrical shape, etc., which is easy to dump the garbage. A vibration mechanism is provided on the box body 11 for generating vibration when dumping the garbage to accelerate the output of the garbage and avoid garbage retention.

[0036] In this embodiment, a handle is provided on the vehicle base 2 away from the flipping direction of the box body 11. A storage box 25 with a leaking hole for temporarily storing cleaning tools is provided in the handle area, or a storage box 25 with a leaking hole for temporarily storing cleaning tools is provided in the outer area of ​​the garbage bin 1. The storage box 25 is convenient for placing cleaning tools, and a leaking hole is provided so that liquid flows out from the leaking hole to prevent water storage from increasing the corrosion of the storage box 25 and increasing the weight of the overall closed classification collection trolley. A waterproof sealing layer is provided on the inner wall surface of the box body 11. A waterproof sealing layer is provided on the inner wall surface of the box body 11 to prevent garbage from corroding the box body 11, and also to prevent the box body 11 from being poorly sealed and liquid sewage from flowing out to pollute the environment. The vehicle base 2 also includes a universal wheel 26. The universal wheel 26 cooperates with the wheel 22 to facilitate the movement of the closed classification collection trolley and stably support the frame 21.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A closed sorting collection trolley for sorting, collecting, transporting and unloading garbage, characterized in that: include: A trash bin (1) and a vehicle base (2) for supporting the trash bin (1) and driving the trash bin (1) to move, wherein the trash bin (1) comprises at least two independent trash bin units for loading different types of trash separately, and the trash bin units are arranged in sequence along the width of the closed classification collection trolley, and the trash bin units are dumped into the corresponding types of trash by flipping the different trash bin units forward; The garbage bin unit comprises: a bin body (11) for carrying garbage, a feeding mechanism (12) arranged on the top of the bin body (11) for feeding garbage and capable of automatically resetting and closing, a discharging mechanism (13) arranged on the top of the bin body (11) for discharging garbage from the bin body (11), a rotating mechanism (14) arranged on the bottom of the bin body (11) and offset from the center of gravity of the bin body (11) for turning the bin body (11) relative to the vehicle base (2) so that garbage can be discharged from the discharging mechanism (13), and a limiting mechanism (15) for locking the bin body (11) to limit the turning of the bin body (11); The box body (11), the feeding mechanism (12) and the discharging mechanism (13) are assembled to form a closed space for accommodating garbage; The box body (11) has a U-shaped base structure for turning the box body (11) relative to the vehicle base (2) so as to facilitate the discharge of garbage along the discharge mechanism (13); the vehicle base (2) comprises a vehicle frame (21), wheels (22), an axle (23) and a load-bearing rod (24); the axle (23) is rotatably connected to the vehicle frame (21), and the two wheels (22) are respectively arranged at two ends of the axle (23); or the axle (23) is fixedly connected to the vehicle frame (21), and the two wheels (22) are respectively arranged at two ends of the axle (23). 22) are rotatably connected to both ends of the axle (23); the load-bearing rod (24) is located on the side of the frame (21) away from the flipping direction of the box body (11) and is arranged at a distance from the rotation mechanism (14), so that after the limit mechanism (15) is released, the box body (11) can automatically flip; the rotation mechanism (14) uses an axial hole for rotatably connecting to the axle (23), and the axle (23) passes through the axial hole to realize the flipping of the box body (11) around the axle (23); A pull rope is provided at one end of the box body (11) close to the load-bearing rod (24). When the garbage is unloaded, the pull rope can be pulled to cause the box body (11) to rotate in the opposite direction to its original position and to be re-fixed on the vehicle base (2) through the limiting mechanism (15); or a handle is provided on the box body (11). By pulling the handle, the box body (11) is reset and re-fixed on the vehicle base (2) through the limiting mechanism (15); a lever mechanism is provided on the vehicle base (2), the fulcrum of the lever mechanism is provided on the vehicle base (2), the force point of the lever mechanism is connected to the front end of the box body (11), the force application point of the lever mechanism is in the push handle area, and force is applied manually or by pedaling; The box body (11) further comprises a filtering device (16) for solid-liquid separation of garbage, the filtering device (16) comprising a filtering mechanism (161) close to the bottom of the box body (11) and a blocking mechanism (162) along both ends of the filtering mechanism (161) away from the bottom of the box body (11), the blocking mechanism (162) being arranged obliquely and forming a liquid percolating out of the garbage in the box body (11) between the filtering mechanism (161) and the bottom of the box body (11). The filter mechanism (161) is provided with a filter hole (1611) for filtering liquid, so as to filter the liquid above the filter device (16) to the bottom of the box body (11) for storage; the blocking mechanism (162) is sealed with the inner wall of the box body (11), so as to block the liquid through the blocking mechanism (162) when the box body (11) rotates and turns over, thereby preventing the liquid from flowing back through the filter hole (1611) and flowing out from the discharge mechanism (13).

2. The closed sorting collection trolley according to claim 1, characterized in that: The limiting mechanism (15) adopts one of the following methods: snap-on limiting, clamping limiting or plug-in limiting.

3. The closed sorting collection trolley according to claim 2, characterized in that: The frame (21) is provided with a limiting hole for cooperating with the limiting mechanism (15); the limiting mechanism (15) comprises a pin hole and a pin shaft arranged at the bottom of the box body (11) and coaxially cooperating with the limiting hole.

4. The closed sorting collection trolley according to claim 1, characterized in that: The blocking mechanism (162) extending along one end of the filtering mechanism (161) is in a downwardly concave arc-shaped structure, so that the base structure formed by the filtering mechanism (161) and the blocking mechanism (162) matches the U-shaped base structure of the box body (11); A gate valve (17) for controlling the discharge of liquid is provided at the bottom of the box body (11).

5. The closed sorting collection trolley according to claim 1, characterized in that: The discharge mechanism (13) comprises a slide rail (131) arranged parallel to the flipping direction of the box body (11), a slide cover (132) arranged on the slide rail (131) and slidably matched with the slide rail (131) to control the opening and closing of the discharge outlet, and a positioning block used for sliding positioning of the slide cover (132); The horizontal height of the feeding mechanism (12) is lower than the horizontal height of the slide rail (131) so as to increase the opening area of ​​the discharge outlet.

6. The closed sorting collection trolley according to claim 1, characterized in that: The feeding mechanism (12) comprises a box door and a hinged member for being hingedly connected to the box body (11), and an elastic member provided at the hinged joint between the box body (11) and the box door for causing the box door to reset and close automatically, so that the feeding mechanism (12) is in a normally closed state.

7. The closed sorting collection trolley according to claim 1, characterized in that: A buffer mechanism is provided at the front end of the box body (11); after the limiting mechanism (15) releases the garbage in the box body (11), the box body (11) contacts the ground through the buffer mechanism when automatically dumping, thereby avoiding damage caused by impact force and generating impact noise; A guide plate for guiding the garbage out is provided at the front end of the box body (11), so as to prevent the garbage from accumulating on the discharge mechanism (13) and being unable to be completely poured out; The box body (11) is provided with a vibration mechanism for generating vibration when dumping garbage, so as to accelerate the discharge of the garbage and avoid garbage retention.

8. The closed sorting collection trolley according to claim 1, characterized in that: The vehicle base (2) is provided with a push handle away from the flipping direction of the box body (11); The handle area is provided with a storage box (25) for temporarily storing cleaning tools and having a water leakage hole, or The outer area of ​​the trash bin (1) is provided with a storage box (25) for temporarily storing cleaning tools and having a drainage hole. The inner wall surface of the box body (11) is provided with a waterproof sealing layer; The vehicle base (2) also includes universal wheels (26).

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