CN108773613B

CN108773613B - Environment-friendly dustbin

Info

Publication number: CN108773613B
Application number: CN201810966178.XA
Authority: CN
Inventors: 叶于诚
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-08-23
Filing date: 2018-08-23
Publication date: 2020-11-20
Anticipated expiration: 2038-08-23
Also published as: CN108773613A

Abstract

The invention discloses an environment-friendly dustbin, which comprises a dustbin body, a garbage feeding port and a garbage discharging port, wherein a garbage conveying mechanism, a crushing mechanism, a screening mechanism, a compression mechanism, a driving motor and at least two garbage collecting bins communicated with the garbage discharging port are arranged in the inner cavity of the dustbin body; the crushing mechanism is arranged below the output end of the garbage conveying mechanism; the screening mechanism is arranged below the crushing mechanism, a plurality of leakage holes are distributed on the screening mechanism, and the garbage is sorted into at least two types of garbage; the compression mechanism is used for compressing the light garbage falling from the lower end of the screening mechanism. The environment-friendly dustbin has compact and simple structure, and can reduce the burden of subsequent garbage treatment; and can compress rubbish, practice thrift rubbish occupation space, improve rubbish volume of depositing, be convenient for rubbish classification collection clearance.

Description

Environment-friendly dustbin

Technical Field

The invention relates to the technical field of urban garbage classified collection, in particular to an environment-friendly garbage can.

Background

At present, with the development of economy and the improvement of the living standard of people, the problem of municipal solid waste is increasingly outstanding, the accumulation amount of the municipal solid waste is continuously increased, and whether the municipal solid waste can be quickly and effectively treated becomes one of the important factors influencing the sustainable development of cities. The urban domestic garbage mainly comprises food garbage, cleaning garbage and the like; the food waste generally refers to waste generated in the process of buying, selling, storing, processing and eating various foods, such as food residue, food packaging bags, beverage bottles, overdue packaged foods and the like; the garbage cleaning is generally waste, fallen leaves, paper products, waste plastic bags and the like. The urban domestic garbage is generally temporarily stored in a garbage can and is periodically conveyed to a garbage disposal station by sanitation workers for disposal.

The structure of the dustbin in the prior art generally comprises a dustbin body for accommodating rubbish, and the dustbin body is provided with a rubbish input port and a rubbish discharge port; in order to facilitate the garbage classification, a plurality of accommodating chambers are arranged in the box body, and a plurality of garbage throwing openings which correspond to the accommodating chambers one by one and facilitate the throwing of different types of garbage are formed in the box body. When the garbage can is used, due to the difference of culture levels of people, the types of garbage are not clearly classified, such as recyclable garbage or non-recyclable garbage, so that the classification of the garbage is not clear, the burden is added to the subsequent garbage sorting treatment, the treatment efficiency of urban domestic garbage is low, and the urban garbage is accumulated; in addition, when workers collect household garbage, the types of the garbage are rarely distinguished, and vehicles for transporting the garbage are often seen to dump garbage in different accommodating chambers in a garbage can into the vehicles, so that the classified different types of garbage are mixed together, most of the garbage is still treated in a landfill mode, the garbage classification of the garbage can loses significance, and the enthusiasm of people in garbage classification is seriously contused; moreover, because the volume of the dustbin is limited, in public places where people flow more, the throwing amount of the garbage is often larger than the volume of the dustbin, especially the garbage in an expansion state, such as a packaging box, a plastic bag and the like, the volume of the dustbin is large, the dustbin is easily filled, if a sanitation worker does not clean the dustbin in time, the phenomenon that the garbage is accumulated around the dustbin is caused, so that the urban environment is affected, and the sanitation worker is very inconvenient when cleaning scattered garbage. Especially, most of the garbage put into the garbage can is bag-shaped garbage, such as lunch boxes and packaging bags for containing leftovers, food with packages at overdue time, paper cups for containing drinks which are not drunk, and the like. When the bagged garbage is collected by workers, the garbage contained in the bags easily falls on the ground to pollute the ground; when the bagged garbage is conveyed to a garbage disposal station for disposal, the package needs to be cut, and food and beverage residues in the package need to be separated for disposal, so that the subsequent disposal process of the garbage is complicated by the bagged garbage.

Disclosure of Invention

The invention aims to solve the technical problems that the defects of the prior art are overcome, and the garbage sorting device is compact and simple in structure, clear in garbage classification, capable of reducing the burden of subsequent garbage treatment and improving the garbage treatment efficiency; and can compress the rubbish, practice thrift rubbish occupation space, improve rubbish volume of depositing, the environment-friendly dustbin of the categorised collection clearance of rubbish of being convenient for.

The technical scheme of the invention is to provide an environment-friendly dustbin with the following structure: the garbage can comprises a garbage can body, wherein the garbage can body is provided with an inner cavity, a garbage input opening and a garbage discharge opening, a garbage conveying mechanism, a crushing mechanism, a screening mechanism, a compression mechanism, a driving motor and at least two garbage collecting bins communicated with the garbage discharge opening are arranged in the inner cavity of the garbage can body, and the garbage conveying mechanism is arranged on the inner wall of the inner cavity below the garbage input opening and is used for conveying garbage input from the garbage input opening to the crushing mechanism; the crushing mechanism is arranged below the output end of the garbage conveying mechanism and is used for receiving and crushing the garbage conveyed by the garbage conveying mechanism; the screening mechanism is obliquely arranged below the crushing mechanism from top to bottom, and a plurality of leakage holes are distributed in the screening mechanism and used for screening the garbage discharged from the crushing mechanism and sorting the garbage into at least two types of garbage, wherein the at least two types of garbage comprise light garbage; the compression mechanism is used for compressing the light garbage falling from the lower end of the screening mechanism; the driving motor is used for driving the conveying mechanism, the crushing mechanism, the screening mechanism and the compressing mechanism to act; the garbage collection bin is used for respectively collecting garbage leaked from the leakage holes of the screening mechanism and light garbage compressed by the compression mechanism.

After adopting the structure, compared with the prior art, the environment-friendly dustbin has the following advantages: when the environment-friendly dustbin is used, the bottom of the dustbin body is fixed with the ground, when thrown garbage enters an inner cavity of the dustbin body through a garbage throwing port, the driving motor drives the garbage conveying mechanism, the crushing mechanism, the screening mechanism and the compressing mechanism to act, the garbage conveying mechanism conveys the garbage thrown in from the garbage throwing port to the crushing mechanism, so that the crushing mechanism is prevented from being directly arranged at the garbage throwing port, the potential safety hazard of hurting hands when people throw the garbage is prevented, and the crushed garbage dust particles are prevented from being splashed upwards through the garbage throwing port by the crushing mechanism to pollute the air; the crushing mechanism is used for crushing the conveyed garbage, particularly bagged and boxed food, and crushing the packaging bag and the packaging box to separate the food inside the packaging bag and the packaging box; the screening mechanism screens the crushed garbage into at least two types of garbage, namely granular food garbage, liquid garbage, dust, light garbage and the like, wherein the light garbage comprises plastic bags, packing paper, packing boxes, paper towels and the like; granular food garbage, liquid garbage, dust and the like leak down through the leakage holes on the screening mechanism and fall into the garbage collection bin for collection; the light garbage falls into the lower part of the compression mechanism through the lower end of the screening mechanism under the action of gravity, the compression mechanism is driven by the driving motor to compress and reduce the light garbage, and the compressed garbage is squeezed into another garbage collection bin under the action of the compression mechanism to be collected; through compression treatment, the occupied space of the garbage is saved, the garbage storage amount is increased, and the garbage can is prevented from being filled up and being thrown everywhere; when the sanitation workers collect the garbage, the garbage sorting device can easily distinguish two types of garbage, namely light garbage and granular garbage, the garbage is clearly sorted, and the garbage sorting device is beneficial to the sanitation workers to sort and collect. In addition, the garbage is crushed and compressed, so that the pretreatment of the municipal domestic garbage is realized, the burden of subsequent garbage treatment can be reduced, and the garbage treatment efficiency is improved; the environment-friendly dustbin adopts one driving motor to provide power for the garbage conveying mechanism, the crushing mechanism, the screening mechanism and the compressing mechanism, so that the environment-friendly dustbin is compact and simple in structure and meets the energy-saving requirement.

Preferably, the back of the dustbin body is provided with an opening, and one side wall of the opening is hinged with a back plate capable of opening or closing the opening; the inner wall of the back plate is fixedly connected with a mounting support, and the garbage conveying mechanism, the crushing mechanism, the screening mechanism, the compressing mechanism and the driving motor are all mounted on the mounting support. According to the environment-friendly dustbin, the garbage conveying mechanism, the crushing mechanism, the screening mechanism, the compressing mechanism and the driving motor are all arranged on the mounting bracket of the back plate, and when fault maintenance occurs, the back plate is directly opened, so that all parts are exposed outside, and maintenance in a narrow space in the dustbin body is avoided; and when the sanitation worker is cleaning the sanitation in the dustbin body, the operation is very convenient, in addition, the backboard can be locked by the lock after the opening is closed, the manual or accidental opening is avoided, specifically, the lock is arranged on one side of the backboard far away from the hinge shaft, and the backboard can be locked at the opening by the lock.

Preferably, the garbage conveying mechanism comprises two driving wheels which are rotatably connected to the mounting bracket, the two driving wheels are in transmission connection with a conveying belt, and one of the driving wheels is in transmission connection with a rotating shaft of the driving motor through a transmission belt; the conveying belt is positioned right below the garbage throwing port, and the output end of the conveying belt is arranged at the inlet of the crushing mechanism; the outer surface of the conveying belt is connected with a plurality of magnetic blocks, a scraper is arranged on a mounting bracket at the bottom of the conveying belt, and the scraper is elastically abutted against the bottom of the conveying belt and used for scraping iron garbage magnetically adsorbed on the conveying belt; the mounting bracket is movably connected with a first material receiving box, and the top opening of the first material receiving box is positioned right below the scraper. When the garbage conveying mechanism works, a rotating shaft of a driving motor rotates to drive one of the driving wheels to rotate, so that the conveying belt is in a transmission state; the conveying belt can convey the garbage thrown from the garbage throwing port to the inlet of the crushing mechanism, and can magnetically attract ferromagnetic garbage, such as iron nails, steel balls, iron sheets and the like, in the garbage onto the conveying belt, and the ferromagnetic garbage is scraped off by the scraper and falls into the first material receiving box for collection; the ferromagnetic garbage is prevented from damaging the chopping mechanism due to hard hardness of the ferromagnetic garbage; in addition, because the quantity of ferromagnetic waste in the municipal domestic waste is less, sanitation workers can open the back plate after a long time, so that the ferromagnetic waste in the first material receiving box is collected, and the operation is very convenient.

Preferably, the crushing mechanism comprises a crushing roller which is rotatably connected to the mounting bracket and a material guide plate which is movably connected to the mounting bracket, a plurality of crushing cutter sets which protrude outwards and are distributed along the length direction of the shaft of the crushing roller are arranged on the outer circumferential wall of the crushing roller, and the rotating shaft of the driving motor is in transmission connection with the rotating shaft of the crushing roller; a crushing channel is arranged between the crushing roller and the guide plate, an inward-concave arc part is arranged on one side wall of the guide plate close to the crushing roller, and a plurality of fixed blades which are distributed along the length direction of the guide plate and are matched with the crushing cutter set in a staggered manner are connected to the inner wall of the arc part; the mounting bracket is fixedly connected with a sliding seat which is obliquely arranged, the material guide plate is in sliding fit with the sliding seat, the sliding seat is connected with an elastic piece, and the elastic piece and one side wall of the material guide plate, which is far away from the crushing roller, are elastically abutted, so that the material guide plate is always in a trend of being close to the crushing roller. The crushing mechanism adopts a plurality of crushing cutter sets arranged on a crushing roller to be matched with the fixed blades on the material guide plate for shearing so as to realize the crushing treatment of the garbage, for example, the crushing treatment of the bagged garbage or the boxed garbage is carried out to separate the garbage in a packaging bag or a packaging box; because the guide plate can slide on the sliding seat, when a plastic garbage bag or a packaging box is instantaneously accumulated in the crushing channel, the accumulated garbage can overcome the elasticity of the elastic piece under the action of the crushing cutter set along with the rotation of the crushing roller to enable the guide plate to move towards the direction far away from the crushing roller, so that the width of the crushing channel is enlarged, the accumulated garbage in the crushing channel can quickly pass through the crushing mechanism, and after the accumulated garbage passes through the crushing channel, the guide plate resets under the elasticity of the elastic piece, so that the crushing cutter set is prevented from being damaged due to the accumulation of the garbage in the crushing channel; in addition, for the guide plate slides on the sliding seat, a long guide hole extending along the sliding direction of the guide plate is formed in each of two side walls of the sliding seat, two convex columns protruding outwards and coaxial with each other are arranged on two side walls of the guide plate, the two convex columns are in clearance fit with the two long guide holes, the two elastic pieces are arranged in the two long guide holes respectively, one end of each elastic piece is connected with the inner wall of the end, far away from the crushing roller, of each long guide hole, and the other end of each elastic piece is connected with the corresponding convex column in the long guide hole. The long guide holes in the two side walls of the sliding seat are matched with the convex columns in the two side walls of the material guide plate, so that the material guide plate can slide more smoothly on the sliding seat, the material guide plate is prevented from deviating from the sliding seat in the sliding process, and the resetting action of the material guide plate is more stable due to the arrangement of the two elastic pieces. When the cam of the transmission shaft drives the material guide plate to do reciprocating motion, the reciprocating motion of the material guide plate is more stable.

As an improvement, the crushing mechanism further comprises a crushing channel width adjusting structure, the crushing channel width adjusting structure comprises at least one transmission shaft which is rotatably connected to the mounting bracket between the crushing roller and the material guide plate, a cam and a first transmission gear are fixedly connected to the transmission shaft, a second transmission gear is connected to a rotating shaft of the crushing roller, and the second transmission gear is meshed with the first transmission gear; the inner wall of the arc part of the material guide plate is provided with an arc slide matched with the outer edge of the cam, and the outer peripheral wall of the cam is always abutted against the inner bottom wall of the arc slide. According to the width adjusting structure of the crushing channel, during operation, a rotating shaft of the crushing roller rotates, the first transmission gear and the second transmission gear are meshed for transmission, so that the transmission shaft rotates, the cam on the transmission shaft rotates, the outer peripheral wall of the cam is always abutted to the inner bottom wall of the arc-shaped slide way of the arc-shaped part of the material guide plate, the material guide plate is driven to move towards the direction away from the crushing roller, and under the elasticity of the elastic piece, the material guide plate continuously reciprocates, namely the width of the crushing channel is continuously changed, so that a certain extrusion effect is achieved on garbage in the crushing channel, the crushing cutter group can conveniently scratch, tear and extrude bagged garbage or boxed garbage, and the garbage can be crushed more thoroughly; in addition, when the width of the crushing channel is the maximum width under the action of the cam, the crushing channel can facilitate large garbage and garbage which is difficult to crush to pass through the crushing channel, such as glass bottles, rubber rods and the like; the garbage is prevented from being accumulated and staying in the crushing channel; moreover, as the sliding seat is obliquely arranged from top to bottom, the extrusion force of the material guide plate on the garbage in the crushing channel is stronger when the material guide plate slides downwards due to the elasticity of the elastic piece and the gravity of the material guide plate, so that the crushing effect of the garbage is further improved; the rotating shaft of the crushing roller rotates and the cam is always in the action of jacking the material guide plate from bottom to top through the transmission of the first transmission gear and the second transmission gear, so that the material guide plate can conveniently slide upwards along the sliding seat.

Preferably, the screening mechanism comprises a first screen fixedly connected to the mounting bracket, the first screen is obliquely arranged from top to bottom, and the oblique direction of the first screen is parallel to the sliding direction of the material guide plate; the first screen is matched with a second screen in a sliding way, and a gap is formed between the second screen and the first screen; at least one connecting rod is arranged between the upper end of the second screen and the material guide plate, one end of the connecting rod is hinged with the material guide plate, and the other end of the connecting rod is hinged with the upper end of the second screen; the first screen cloth and the second screen cloth are respectively provided with a plurality of holes, and the hole diameter of the hole on the second screen cloth is larger than that of the hole on the first screen cloth. The screening mechanism is composed of a first screen fixedly connected to the mounting bracket and a second screen in sliding fit with the first screen, and the second screen is hinged with the material guide plate through a connecting rod; when the rotating shaft of the crushing roller drives the cam on the transmission shaft to rotate so that the material guide plate reciprocates, the second screen is driven to slide on the first screen in a reciprocating manner; because the gap is arranged between the second screen and the first screen, when the granular garbage enters the gap between the second screen and the first screen, the garbage is in a grinding state due to relative sliding between the second screen and the first screen, so that the garbage can smoothly leak from the leakage hole of the first screen; and the second screen mesh which reciprocates plays a role in fully screening the garbage and is also beneficial to the light garbage on the second screen mesh to move towards the lower end of the second screen mesh or the first screen mesh so as to enter the compression mechanism for compression. In addition, the aperture size of the leak hole on the second screen is larger than that of the leak hole on the first screen, so that the granular garbage and dust can conveniently enter the leak hole of the first screen when the second screen and the first screen slide relatively; the first screen is obliquely arranged from top to bottom, and the second screen slides on the first screen, namely the second screen is also in an oblique state, and the oblique angle of the second screen is the same as that of the first screen; when the garbage falls into the second screen mesh, the garbage is in a downward rolling state under the action of the gravity of the garbage, so that the garbage is conveniently screened.

As an improvement, the upper end of the first screen is connected with a horizontally arranged material receiving plate, a blanking port is arranged on the material receiving plate, and the blanking port corresponds to the lower end of the crushing channel in the vertical direction; an axial flow fan is arranged on the mounting bracket on one side of the material receiving plate, and a blowing port of the axial flow fan faces to a space between the feed opening and the lower end of the crushing channel and faces to the direction of the first screen; and a second material receiving box is arranged on the inner wall of the inner cavity of the garbage can body, and an opening at the top of the second material receiving box is positioned below the feed opening. The axial flow fan is used for generating wind energy and blowing the wind energy to the crushed garbage falling from the lower end of the crushing channel, the light garbage in the garbage is blown to the direction of the first screen or the second screen, and some heavier garbage, such as glass bottles, cullet, bricks and the like fall into the feed opening under the self gravity and are collected in the second material receiving box; this axial fan's setting has further promoted the waste classification effect of this environment-friendly dustbin, and avoids heavier rubbish directly to fall on second screen cloth or first screen cloth like glass bottle, cullet, fragment of brick etc. and lead to the unable screening of this heavier rubbish.

Preferably, the compression mechanism comprises a crankshaft rotatably connected to the mounting bracket, a compression rod vertically matched with the mounting bracket in a sliding manner and a pressure head connected to the lower end of the compression rod, the crankshaft is in transmission connection with a rotating shaft of the driving motor, a rotating sleeve is rotatably sleeved on the crankshaft, the outer side wall of the rotating sleeve is connected with a crank arm, and the lower end of the crank arm is hinged with the upper end of the compression rod; the pressure head is positioned above the lower end of the screening mechanism when positioned at the highest point; the top of the pressure head is downwards provided with a mounting hole, the lower end of the pressure rod is in sliding fit in the mounting hole, and the lower end of the pressure rod is provided with a limiting plate for preventing the pressure rod from being separated from the mounting hole; a compression spring is sleeved on the compression rod, the upper end of the compression spring is abutted against a step plate on the outer peripheral wall of the compression rod, and the lower end of the compression spring is abutted against the top of the pressure head; and the bottom of the limiting plate is provided with a travel switch, and the travel switch is connected with an electrified circuit of the driving motor through a lead. The compression mechanism is used for compressing the light garbage falling from the lower end of the screening mechanism, and when the garbage bin works, a rotating shaft of the driving motor drives a crankshaft to rotate, and the crankshaft drives a crank arm to swing, so that a compression rod and a pressure head are driven to perform lifting compression actions; the pressure head can slide at the lower end of the pressure rod, and the pressure rod is sleeved with a compression spring which tightly pushes the pressure head downwards; therefore, the pressure head has elastic buffering when compressing the light garbage, and the pressure rod is prevented from being bent due to larger stress; in addition, a travel switch is arranged at the bottom of the limiting plate at the lower end of the pressure rod, when the garbage is compressed to a certain amount and cannot be compressed again, the pressure head moves upwards to overcome the elastic force of the spring, a contact of the travel switch at the bottom of the limiting plate is abutted against the inner bottom wall of the mounting hole, the travel switch is triggered to act, and therefore a power-on circuit of the driving motor is cut off, the driving motor stops working, and the situation that the pressure rod is damaged due to the rotation of the driving motor.

Preferably, the garbage collection bin comprises a first garbage collection bin and a second garbage collection bin, the first garbage collection bin is arranged below the screening mechanism and used for collecting garbage leaked from a leakage hole of the screening mechanism, the second garbage collection bin is arranged below the compression mechanism and used for collecting light garbage compressed by the compression mechanism, and the first garbage collection bin and the second garbage collection bin are both communicated with the garbage discharge port. The first garbage collection bin is used for collecting garbage which leaks from the leakage holes of the screening mechanism, and most of the garbage is granular and liquid garbage; the second garbage collection bin is used for collecting light garbage compressed by the compression mechanism, and most of the light garbage is paper garbage, plastic packaging bags garbage, fallen leaves garbage and the like. The garbage pretreated by the environment-friendly garbage can is obviously distributed in the first garbage collecting bin and the second garbage collecting bin, so that sanitation workers can conveniently separate and collect the garbage when cleaning and transporting the garbage.

As an improvement, the environment-friendly dustbin further comprises a PLC control unit, a power supply unit and an infrared sensing module, wherein the PLC control unit is installed on the inner bottom wall of the dustbin body and is respectively connected with the infrared sensing module and a control circuit of the driving motor; the infrared sensing module is arranged on the outer side wall of the dustbin body and used for sensing a human body approach signal and transmitting the signal to the PLC control unit, so that the PLC control unit cuts off a control circuit of the driving motor; and the power supply unit is used for supplying electric energy to the driving motor, the PLC control unit and the infrared sensing module. The PLC control unit is used for controlling a control circuit of the driving motor, the infrared sensing module is used for sensing a human body approaching signal and transmitting the signal to the PLC control unit, and the PLC control unit cuts off the control circuit of the driving motor. Also when the human body is close to the dustbin body and puts in rubbish, infrared ray induction module senses and makes PLC the control unit control driving motor stop work behind the human body is close to the signal, avoids people when putting in rubbish, and the finger is hindered to this internal rubbish conveying mechanism of dustbin accident when moving. The PLC control unit is a commercially available product, can be purchased in the model of FX3SA-10MR, and is produced by Mitsubishi motor automation (China) Co.Ltd; the infrared sensing module is also an infrared sensor, and can be purchased from HC-SR501 manufacturer, Shenzhen science and technology electronics Limited; the power supply unit is used for providing electric energy for the driving motor, the PLC control unit and the infrared sensing module, and the power supply unit can be provided with a distribution box to supply power by utilizing a municipal power supply circuit.

Drawings

FIG. 1 is a schematic view of an environment-friendly trash bin according to the present invention.

FIG. 2 is a schematic view of an open state of a backboard of an environmentally friendly trash can according to the present invention.

FIG. 3 is a schematic view of the internal structure of the environmental protection type garbage can of the present invention.

FIG. 4 is a schematic structural diagram of a crushing mechanism of the environmental protection type garbage can of the present invention.

FIG. 5 is a schematic view of a partial structure of a conveyor belt of an environmentally friendly trash bin according to the present invention.

FIG. 6 is a schematic view of another state of the crushing mechanism of the environmental protection type garbage can according to the present invention.

FIG. 7 is an enlarged view of the portion A of FIG. 3 of the environmental protection garbage can according to the present invention.

FIG. 8 is an enlarged view of the portion B of FIG. 3 of the environmental protection garbage can according to the present invention.

As shown in the figure:

1. a garbage box body 100, a garbage input port 101, an opening 102, a back plate 103, a mounting bracket 104, an inner cavity 105, a garbage discharge port 106, a first garbage collection bin 107, a second garbage collection bin 2, a transmission wheel 200, a conveying belt 201, a transmission belt 202, a scraping plate 203, a first material receiving box 204, a bulge 205, a pin shaft 206, a bump 207, a torsion spring 208, a magnetic block 3, a crushing roller 300, a crushing cutter set 301, a material guide plate 302, an arc part 303, a fixed blade 304, a crushing channel 305, a sliding seat 306, a long guide hole 307, an elastic part 308, a convex column 4, a first screen 400, a second screen 401, a guide groove 402, a guide column 403, a leakage hole 404, a connecting rod 405, a material receiving plate 406, an axial flow fan 407, a material discharge port 408, a second material receiving box 5, a transmission shaft 500, a first transmission gear, 501. the device comprises a second transmission gear, 502, a cam, 6, a crankshaft, 600, a rotating sleeve, 601, a crank arm, 602, a pressure rod, 603, a pressure head, 604, a mounting hole, 605, a limiting plate, 606, a travel switch, 607, a compression spring, 608, a step plate, 609, a second bevel gear, 610, a first bevel gear, 7, a driving motor, 8, a feeding roller, 800, a material stirring rod, 801 and a belt.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples.

As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8;

the invention relates to an environment-friendly dustbin, which comprises a dustbin body 1, wherein the dustbin body 1 is provided with an inner cavity 104 for placing garbage, a garbage input port 100 arranged at the top of the dustbin body 1 and a garbage output port 105 arranged at the lower part of the dustbin body 1, a garbage conveying mechanism, a crushing mechanism, a screening mechanism, a compression mechanism, a driving motor and at least two garbage collecting bins communicated with the garbage output port are arranged in the inner cavity 104 of the dustbin body 1, and the garbage conveying mechanism is arranged on the inner wall of the inner cavity 104 below the garbage input port 100 and is used for conveying the garbage input from the garbage input port 100 to the crushing mechanism; the crushing mechanism is arranged below the output end of the garbage conveying mechanism and is used for receiving and crushing the garbage conveyed by the garbage conveying mechanism; the screening mechanism is obliquely arranged below the crushing mechanism from top to bottom, and a plurality of leakage holes 403 are distributed on the screening mechanism and used for screening the garbage discharged from the crushing mechanism and sorting the garbage into at least two types of garbage, wherein the at least two types of garbage comprise light garbage; the compression mechanism is used for compressing the light garbage falling from the lower end of the screening mechanism; the driving motor 7 is used for driving the conveying mechanism, the crushing mechanism, the screening mechanism and the compressing mechanism to act; the garbage collection bin is used for respectively collecting garbage leaked from the leakage holes 403 of the screening mechanism and light garbage compressed by the compression mechanism. When the environment-friendly dustbin is used, the bottom of the dustbin body 1 is fixed with the ground, when thrown garbage enters the inner cavity 104 of the dustbin body 1 through the garbage throwing port 100, the driving motor 7 drives the garbage conveying mechanism, the crushing mechanism, the screening mechanism and the compressing mechanism to act, the garbage conveying mechanism conveys the garbage thrown through the garbage throwing port 100 to the crushing mechanism, so that the situation that the crushing mechanism is directly arranged at the garbage throwing port 100 is avoided, the potential safety hazard of injuring hands caused when people throw the garbage is prevented, and the situation that crushed garbage dust particles are splashed upwards through the garbage throwing port 100 by the crushing mechanism to pollute the air is prevented; the crushing mechanism is used for crushing the conveyed garbage, particularly bagged and boxed food, and crushing the packaging bag and the packaging box to separate the food inside the packaging bag and the packaging box; the screening mechanism screens the crushed garbage into at least two types of garbage, namely granular food garbage, liquid garbage, dust, light garbage and the like, wherein the light garbage comprises plastic bags, packing paper, packing boxes, paper towels and the like; granular food garbage, liquid garbage, dust and the like leak down through the leakage holes on the screening mechanism and fall into the first garbage collection bin 106 for collection; the light garbage falls into the lower part of the compression mechanism through the lower end of the screening mechanism under the action of gravity, the compression mechanism is driven by the driving motor to compress and reduce the light garbage, and the compressed garbage is squeezed into the second garbage collection bin 107 under the action of the compression mechanism to be collected.

The back of the dustbin body 1 is provided with an opening 101, and a back plate 102 capable of opening or closing the opening 101 is hinged on one side wall of the opening 101; the inner wall of the back plate 102 is fixedly connected with a mounting bracket 103, and the garbage conveying mechanism, the crushing mechanism, the screening mechanism, the compressing mechanism and the driving motor 7 are all mounted on the mounting bracket 103. The garbage conveying mechanism, the crushing mechanism, the screening mechanism, the compressing mechanism and the driving motor are all arranged on the mounting bracket 103 of the back plate, and when the fault maintenance occurs, the back plate 102 is directly opened, so that all the parts are exposed outside, and the maintenance in a narrow space in the garbage can body 1 is avoided; in addition, after the opening 101 is closed by the back plate 102, the back plate can be locked by a lock, so that the back plate is prevented from being opened manually or accidentally, and particularly, the lock is arranged on one side of the back plate 102, which is far away from the hinge shaft, and can lock the back plate at the opening 101.

The garbage conveying mechanism comprises two driving wheels 2 which are rotatably connected to the mounting bracket 103, the two driving wheels 2 are in transmission connection with a conveying belt 200, and one driving wheel 2 is in transmission connection with a rotating shaft of the driving motor 7 through a transmission belt 201; namely, a belt pulley is arranged on the shaft of the driving wheel, another belt pulley is arranged on the rotating shaft of the driving motor 7, and the two belt pulleys are in transmission connection through a transmission belt 201; the conveying belt 200 is positioned right below the garbage throwing port 100, and the output end of the conveying belt 200 is arranged at the inlet of the crushing mechanism; the outer surface of the conveying belt is connected with a plurality of magnetic blocks 208, the mounting bracket 103 at the bottom of the conveying belt 200 is provided with a scraper 202, and the scraper 202 elastically abuts against the bottom of the conveying belt 200 and is used for scraping iron garbage magnetically attracted on the conveying belt 200; the scraper 202 is rotatably connected to the mounting bracket 103 through a pin shaft 205, a torsion spring 207 is sleeved on the pin shaft 205, one end of the torsion spring 207 abuts against the bulge 204 of the mounting bracket 103, the other end of the torsion spring 207 abuts against the bump 206 of the scraper 202, and the torsion spring 207 always applies elasticity to the scraper 202, so that the scraper 202 elastically abuts against the bottom of the conveyor belt 200; the mounting bracket 103 is movably connected with a first material receiving box 203, the top opening of the first material receiving box 203 is positioned under the scraper 202, and the first material receiving box 203 can be directly placed on the mounting bracket 103 or can be connected through a movable connecting piece, such as a buckle, a screw and the like.

The crushing mechanism comprises a crushing roller 3 which is rotatably connected to a mounting bracket 103 and a material guide plate 301 which is movably connected to the mounting bracket 103, a plurality of crushing cutter sets 300 which protrude outwards and are distributed along the length direction of a crushing roller shaft 3 are arranged on the outer circumferential wall of the crushing roller 3, and a rotating shaft of a driving motor 7 is in transmission connection with the rotating shaft of the crushing roller 3; the crushing cutter group 300 includes a plurality of crushing cutters, and the plurality of crushing cutters are uniformly distributed in the circumferential direction of the crushing roller 3; the rotating shaft of the driving motor 7 is in transmission connection with the rotating shaft of the crushing roller shaft 3 through a coupler or a speed reducer; the rotating shaft speed of the driving motor 7 is generally set to 50 revolutions per minute; a crushing channel 304 is arranged between the crushing roller 3 and the material guide plate 301, an inward concave arc part 302 is arranged on one side wall of the material guide plate 301 close to the crushing roller 3, and a plurality of fixed blades 303 which are distributed along the length direction of the material guide plate 301 and are matched and staggered with the crushing cutter set 300 are connected to the inner wall of the arc part 302; the mounting bracket 103 is fixedly connected with a sliding seat 305 which is obliquely arranged, the material guide plate 301 is in sliding fit with the sliding seat 305, the sliding seat 305 is connected with an elastic member 307, and the elastic member 307 is elastically abutted against one side wall of the material guide plate 301 which is far away from the crushing roller 3, so that the material guide plate 301 is always close to the crushing roller 3. The crushing cutter set of the crushing mechanism is matched with the fixed blades on the material guide plate for shearing so as to realize the crushing treatment of the garbage, for example, the crushing treatment is carried out on the bagged garbage or the boxed garbage so as to separate the garbage in the packaging bag or the packaging box; because the material guiding plate 301 can slide on the sliding seat 305, when a plastic garbage bag or a packaging box is instantaneously accumulated in the crushing channel 304, along with the rotation of the crushing roller 3, the accumulated garbage can overcome the elasticity of the elastic member 307 under the action of the crushing cutter set 300 to move the material guiding plate towards the direction away from the crushing roller, so that the width of the crushing channel 304 is enlarged, the accumulated garbage in the crushing channel 304 can rapidly pass through the crushing mechanism, and after the accumulated garbage passes through the crushing channel 304, the material guiding plate resets under the elasticity of the elastic member, so that the damage of the crushing cutter set 300 caused by the accumulation of the garbage in the crushing channel 304 can be avoided. The elastic element is generally referred to as a compression spring.

In addition, in order to facilitate the material guiding plate 301 to slide on the sliding seat 305, two long guiding holes 306 extending along the sliding direction of the material guiding plate 301 are respectively arranged on two side walls of the sliding seat 305, two convex and coaxial convex columns 308 are arranged on two side walls of the material guiding plate 301, the two convex columns 308 are in clearance fit in the two long guiding holes 306, two elastic members 307 are respectively arranged in the two long guiding holes 306, one end of each elastic member 307 is connected with the inner wall of one end of each long guiding hole 306 far away from the crushing roller 3, and the other end of each elastic member 307 is connected with the corresponding convex column 308 in the corresponding long guiding hole 306. When the cam 502 of the transmission shaft 5 drives the material guide plate 301 to reciprocate, the reciprocating motion of the material guide plate 301 is more stable.

The crushing mechanism further comprises a crushing channel width adjusting structure, the crushing channel width adjusting structure comprises at least one transmission shaft 5 which is rotatably connected to the mounting bracket 103 between the crushing roller 3 and the material guide plate 301, a cam 502 and a first transmission gear 500 are fixedly connected to the transmission shaft 5, a second transmission gear 501 is connected to a rotating shaft of the crushing roller 3, and the second transmission gear 501 is meshed with the first transmission gear 500; the inner wall of the arc portion 302 of the material guide plate 301 is provided with an arc slide way 309 matched with the outer edge of the cam 502, and the outer peripheral wall of the cam 502 is always abutted to the inner bottom wall of the arc slide way 309. Under the driving of the cam 502, the material guide plate 301 moves towards the direction far away from the crushing roller 3 and returns under the elasticity of the elastic member 307, and the material guide plate 301 continuously reciprocates, that is, the width of the crushing channel 304 is continuously changed, so that not only is a certain extrusion effect on the garbage in the crushing channel 304 achieved, but also the crushing cutter group is convenient to cut, tear and extrude the bagged garbage or the boxed garbage, and the garbage can be more thoroughly crushed; in addition, when the width of the crushing channel 304 is the maximum width under the action of the cam 502, the crushing channel 304 can facilitate large and difficult-to-crush garbage to pass through the crushing channel, such as a glass bottle, a rubber rod and the like; the garbage is prevented from being accumulated and staying in the crushing channel; moreover, as the sliding seat 305 is obliquely arranged from top to bottom, when the material guide plate 301 slides downwards due to the elasticity of the elastic member and the gravity of the material guide plate, the extrusion force on the garbage in the crushing channel 304 is stronger, and the crushing effect of the garbage is further improved; the rotation of the rotating shaft of the crushing roller 3 and the transmission of the first transmission gear 500 and the second transmission gear 501 make the cam 502 always in the action of pushing up the guide plate 301 from bottom to top, thereby facilitating the guide plate 301 to slide upwards along the sliding seat 305.

The screening mechanism comprises a first screen 4 fixedly connected to the mounting bracket 103, the first screen 4 is obliquely arranged from top to bottom, and the oblique direction of the first screen 4 is parallel to the sliding direction of the material guide plate 301; the second screen 400 is matched with the first screen 4 in a sliding manner, and a gap is formed between the second screen 400 and the first screen 4; at least one connecting rod 404 is arranged between the upper end of the second screen 400 and the material guide plate 301, one end of the connecting rod 404 is hinged with the material guide plate 301, and the other end of the connecting rod 404 is hinged with the upper end of the second screen 400; the first screen 4 and the second screen 400 are provided with the leakage holes 403, and the pore size of the leakage holes on the second screen 400 is larger than that of the leakage holes on the first screen 4. In this embodiment, two connecting rods 404 are adopted and respectively disposed at two sides of the material guiding plate, and a gap is disposed between the two connecting rods 404. When the rotating shaft of the crushing roller 3 drives the cam 502 on the transmission shaft 5 to rotate so as to make the material guide plate 301 do reciprocating motion, the second screen 400 is driven to slide on the first screen 4 in a reciprocating manner; because the gap is arranged between the second screen 400 and the first screen 4, when the granular garbage enters the gap between the second screen and the first screen, the garbage is in a grinding state due to relative sliding between the second screen and the first screen, so that the garbage can smoothly leak from the leak hole of the first screen; and the second screen mesh which reciprocates plays a role in fully screening the garbage and is also beneficial to the light garbage on the second screen mesh to move towards the lower end of the second screen mesh or the first screen mesh so as to enter the compression mechanism for compression. The screen cloth is characterized in that two guide grooves 401 extending along the length direction of the first screen cloth are arranged, two convex guide columns 402 are arranged on two side walls of the second screen cloth, and the guide columns 402 are in sliding fit in the guide grooves 401 on the two side walls of the first screen cloth 4.

The upper end of the first screen 4 is connected with a horizontally arranged material receiving plate 405, a discharging opening 407 is arranged on the material receiving plate 405, and the discharging opening 407 corresponds to the lower end of the crushing channel 304 in the vertical direction; an axial flow fan 406 is mounted on the mounting bracket 103 on one side of the material receiving plate 405, and a blowing port of the axial flow fan 406 faces a space between the feed opening 407 and the lower end of the crushing channel 304 and faces the direction of the first screen 4; the inner wall of the inner cavity of the dustbin body 1 is provided with a second material receiving box 408, and the opening at the top of the second material receiving box 408 is positioned below the feed opening 407. The axial flow fan 406 is configured to generate wind energy and blow the crushed garbage falling from the lower end of the crushing channel 304 toward the first screen 4 or the second screen 400, and some heavier garbage, such as glass bottles, cullet, bricks, etc., falls into the discharging opening 407 through the gap between the material guiding plate 301 and the first screen 4 under its own gravity and is collected in the second material receiving box 408.

The compression mechanism comprises a crankshaft 6 which is rotatably connected to the mounting bracket 103, a pressure rod 602 which is vertically and slidably matched with the mounting bracket 103, and a pressure head 603 which is connected to the lower end of the pressure rod 602, wherein the crankshaft 6 is in transmission connection with a rotating shaft of the driving motor 7, a rotating sleeve 600 is rotatably sleeved on the crankshaft 6, the outer side wall of the rotating sleeve 600 is connected with a crank arm 601, and the lower end of the crank arm 601 is hinged with the upper end of the pressure rod 602; the pressure head 603 is positioned above the lower end of the screening mechanism when being at the highest point; a mounting hole 604 is formed downwards in the top of the pressure head 603, the lower end of the pressure rod 602 is in sliding fit in the mounting hole 604, and a limiting plate 605 for preventing the pressure rod 602 from being separated from the mounting hole 604 is arranged at the lower end of the pressure rod 602; a compression spring 607 is sleeved on the compression rod 602, the upper end of the compression spring 607 abuts against a step plate 608 on the outer peripheral wall of the compression rod 602, and the lower end of the compression spring 607 abuts against the top of the pressure head 603; the bottom of the limiting plate 605 is provided with a travel switch 606, and the travel switch 606 is connected with an electrifying circuit of the driving motor 7 through a lead. One end of the crankshaft 6 is provided with a first bevel gear 610, a rotating shaft of the driving motor 7 is connected with a second bevel gear 609, and the first bevel gear 610 is in transmission engagement with the second bevel gear 609, so that the rotating shaft of the driving motor drives the crankshaft 6 to rotate.

The mounting bracket 103 at the upper part of the first screen 4 is rotatably connected with a feed roller 8, the feed roller is in transmission connection with a rotating shaft of the crushing roller 3 through a belt 801, and the feed roller 8 is distributed with material stirring rods 800; the feed roller 8 is driven by the rotating shaft of the crushing roller 3 to rotate, so that the material poking rod 800 on the feed roller 8 can quickly poke the light garbage on the second screen 400 into the lower part of the compression mechanism, and the light garbage is prevented from staying on the second screen 400 for a long time.

The garbage collection bin comprises a first garbage collection bin 106 and a second garbage collection bin 107, the first garbage collection bin 106 is arranged below the screening mechanism and used for collecting garbage leaked from a leakage hole of the screening mechanism, the second garbage collection bin 107 is arranged below the compression mechanism and used for collecting light garbage compressed by the compression mechanism, and the first garbage collection bin 106 and the second garbage collection bin 107 are communicated with the garbage discharge port 105.

The environment-friendly dustbin further comprises a PLC control unit, a power supply unit and an infrared sensing module, wherein the PLC control unit is installed on the inner bottom wall of the dustbin body and is respectively connected with the infrared sensing module and a control circuit of the driving motor; the infrared sensing module is arranged on the outer side wall of the dustbin body and used for sensing a human body approach signal and transmitting the signal to the PLC control unit, so that the PLC control unit cuts off a control circuit of the driving motor; and the power supply unit is used for supplying electric energy to the driving motor, the PLC control unit and the infrared sensing module. When the human body is close to the dustbin body and puts in rubbish, the infrared ray induction module senses that the human body makes PLC control unit control driving motor stop work after being close to the signal, avoids people when putting in rubbish, and unexpected finger that hurts when this internal rubbish conveying mechanism of dustbin moves. The PLC control unit is a commercially available product, can be purchased in the model of FX3SA-10MR, and is produced by Mitsubishi motor automation (China) Co.Ltd; the infrared sensing module is also an infrared sensor, and can be purchased from HC-SR501 manufacturer, Shenzhen science and technology electronics Limited; the power supply unit is used for providing electric energy for the driving motor, the PLC control unit and the infrared sensing module, and a municipal power supply circuit can be utilized by adopting the distribution box.

The above description is only an embodiment of the present invention, but the protection scope of the present invention is not limited thereto, for example, the driving motor drives the transmission shaft to rotate, and the transmission shaft can be driven by gears or chains, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention; therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an environment-friendly dustbin, it includes the dustbin body, the dustbin body inner chamber, rubbish are put in mouthful and rubbish discharge port, its characterized in that: the garbage bin comprises a garbage bin body, a garbage bin body and a garbage conveying mechanism, wherein the garbage conveying mechanism, a crushing mechanism, a screening mechanism, a compression mechanism, a driving motor and at least two garbage collecting bins communicated with a garbage discharge port are arranged in an inner cavity of the garbage bin body; the crushing mechanism is arranged below the output end of the garbage conveying mechanism and is used for receiving and crushing the garbage conveyed by the garbage conveying mechanism; the screening mechanism is obliquely arranged below the crushing mechanism from top to bottom, and a plurality of leakage holes are distributed in the screening mechanism and used for screening the garbage discharged from the crushing mechanism and sorting the garbage into at least two types of garbage, wherein the at least two types of garbage comprise light garbage; the compression mechanism is used for compressing the light garbage falling from the lower end of the screening mechanism; the driving motor is used for driving the conveying mechanism, the crushing mechanism, the screening mechanism and the compressing mechanism to act; the garbage collection bin is used for respectively collecting garbage leaked from the leakage hole of the screening mechanism and light garbage compressed by the compression mechanism;

the back of the dustbin body is provided with an opening, and one side wall of the opening is hinged with a back plate capable of opening or closing the opening; the inner wall of the back plate is fixedly connected with an installation support, and the garbage conveying mechanism, the crushing mechanism, the screening mechanism, the compressing mechanism and the driving motor are all installed on the installation support;

the crushing mechanism comprises a crushing roller which is rotatably connected to the mounting bracket and a material guide plate which is movably connected to the mounting bracket, a plurality of crushing cutter sets which protrude outwards and are distributed along the length direction of the shaft of the crushing roller are arranged on the outer circumferential wall of the crushing roller, and the rotating shaft of the driving motor is in transmission connection with the rotating shaft of the crushing roller; a crushing channel is arranged between the crushing roller and the guide plate, an inward-concave arc part is arranged on one side wall of the guide plate close to the crushing roller, and a plurality of fixed blades which are distributed along the length direction of the guide plate and are matched with the crushing cutter set in a staggered manner are connected to the inner wall of the arc part; the mounting bracket is fixedly connected with a sliding seat which is obliquely arranged, the material guide plate is in sliding fit with the sliding seat, the sliding seat is connected with an elastic piece, and the elastic piece is elastically abutted against one side wall of the material guide plate, which is far away from the crushing roller, so that the material guide plate is always in a trend of being close to the crushing roller;

the crushing mechanism further comprises a crushing channel width adjusting structure, the crushing channel width adjusting structure comprises at least one transmission shaft which is rotatably connected to the mounting bracket between the crushing roller and the material guide plate, a cam and a first transmission gear are fixedly connected to the transmission shaft, a second transmission gear is connected to a rotating shaft of the crushing roller, and the second transmission gear is meshed with the first transmission gear; the inner wall of the arc part of the material guide plate is provided with an arc slide matched with the outer edge of the cam, and the outer peripheral wall of the cam is always abutted against the inner bottom wall of the arc slide.

2. The environmentally friendly trash bin of claim 1, wherein: the garbage conveying mechanism comprises two driving wheels which are rotatably connected to the mounting bracket, the two driving wheels are in transmission connection with a conveying belt, and one of the driving wheels is in transmission connection with a rotating shaft of a driving motor through a transmission belt; the conveying belt is positioned right below the garbage throwing port, and the output end of the conveying belt is arranged at the inlet of the crushing mechanism; the outer surface of the conveying belt is connected with a plurality of magnetic blocks, a scraper is arranged on a mounting bracket at the bottom of the conveying belt, and the scraper is elastically abutted against the bottom of the conveying belt and used for scraping iron garbage magnetically adsorbed on the conveying belt; the mounting bracket is movably connected with a first material receiving box, and the top opening of the first material receiving box is positioned right below the scraper.

3. The environmentally friendly trash bin of claim 1, wherein: the screening mechanism comprises a first screen fixedly connected to the mounting bracket, the first screen is obliquely arranged from top to bottom, and the oblique direction of the first screen is parallel to the sliding direction of the material guide plate; the first screen is matched with a second screen in a sliding way, and a gap is formed between the second screen and the first screen; at least one connecting rod is arranged between the upper end of the second screen and the material guide plate, one end of the connecting rod is hinged with the material guide plate, and the other end of the connecting rod is hinged with the upper end of the second screen; the first screen cloth and the second screen cloth are respectively provided with a plurality of holes, and the hole diameter of the hole on the second screen cloth is larger than that of the hole on the first screen cloth.

4. The environmentally friendly trash bin of claim 3, wherein: the upper end of the first screen is connected with a horizontally arranged material receiving plate, a discharging opening is arranged on the material receiving plate, and the discharging opening corresponds to the lower end of the crushing channel in the vertical direction; an axial flow fan is arranged on the mounting bracket on one side of the material receiving plate, and a blowing port of the axial flow fan faces to a space between the feed opening and the lower end of the crushing channel and faces to the direction of the first screen; and a second material receiving box is arranged on the inner wall of the inner cavity of the garbage can body, and an opening at the top of the second material receiving box is positioned below the feed opening.

5. The environmentally friendly trash bin of claim 1, wherein: the compression mechanism comprises a crankshaft which is rotatably connected to the mounting bracket, a compression rod which is vertically matched with the mounting bracket in a sliding manner and a pressure head connected to the lower end of the compression rod, the crankshaft is in transmission connection with a rotating shaft of the driving motor, a rotating sleeve is rotatably sleeved on the crankshaft, the outer side wall of the rotating sleeve is connected with a crank arm, and the lower end of the crank arm is hinged with the upper end of the compression rod; the pressure head is positioned above the lower end of the screening mechanism when positioned at the highest point; the top of the pressure head is downwards provided with a mounting hole, the lower end of the pressure rod is in sliding fit in the mounting hole, and the lower end of the pressure rod is provided with a limiting plate for preventing the pressure rod from being separated from the mounting hole; a compression spring is sleeved on the compression rod, the upper end of the compression spring is abutted against a step plate on the outer peripheral wall of the compression rod, and the lower end of the compression spring is abutted against the top of the pressure head; and the bottom of the limiting plate is provided with a travel switch, and the travel switch is connected with an electrified circuit of the driving motor through a lead.

6. The environmentally friendly trash bin of claim 1, wherein: the garbage collection bin comprises a first garbage collection bin and a second garbage collection bin, the first garbage collection bin is arranged below the screening mechanism and used for collecting garbage leaked from a leakage hole of the screening mechanism, the second garbage collection bin is arranged below the compression mechanism and used for collecting light garbage compressed by the compression mechanism, and the first garbage collection bin and the second garbage collection bin are communicated with a garbage discharge port.

7. The environmentally friendly trash bin of claim 1, wherein: the environment-friendly dustbin further comprises a PLC control unit, a power supply unit and an infrared sensing module, wherein the PLC control unit is installed on the inner bottom wall of the dustbin body and is respectively connected with the infrared sensing module and a control circuit of the driving motor; the infrared sensing module is arranged on the outer side wall of the dustbin body and used for sensing a human body approach signal and transmitting the signal to the PLC control unit, so that the PLC control unit cuts off a control circuit of the driving motor; and the power supply unit is used for supplying electric energy to the driving motor, the PLC control unit and the infrared sensing module.