CN108861211A - A kind of shaftless screw channel conveying garbage compression box - Google Patents
A kind of shaftless screw channel conveying garbage compression box Download PDFInfo
- Publication number
- CN108861211A CN108861211A CN201710958473.6A CN201710958473A CN108861211A CN 108861211 A CN108861211 A CN 108861211A CN 201710958473 A CN201710958473 A CN 201710958473A CN 108861211 A CN108861211 A CN 108861211A
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- CN
- China
- Prior art keywords
- garbage
- compression
- shaftless screw
- case lid
- foot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 77
- 238000007906 compression Methods 0.000 title claims abstract description 72
- 230000006835 compression Effects 0.000 title claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000010865 sewage Substances 0.000 claims abstract description 18
- NRTLIYOWLVMQBO-UHFFFAOYSA-N 5-chloro-1,3-dimethyl-N-(1,1,3-trimethyl-1,3-dihydro-2-benzofuran-4-yl)pyrazole-4-carboxamide Chemical compound C=12C(C)OC(C)(C)C2=CC=CC=1NC(=O)C=1C(C)=NN(C)C=1Cl NRTLIYOWLVMQBO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 18
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000256113 Culicidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F1/00—Refuse receptacles; Accessories therefor
- B65F1/14—Other constructional features; Accessories
- B65F1/1405—Compressing means incorporated in, or specially adapted for, refuse receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F1/00—Refuse receptacles; Accessories therefor
- B65F1/14—Other constructional features; Accessories
- B65F1/16—Lids or covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F1/00—Refuse receptacles; Accessories therefor
- B65F1/14—Other constructional features; Accessories
- B65F2001/1653—Constructional features of lids or covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F2210/00—Equipment of refuse receptacles
- B65F2210/132—Draining means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F2210/00—Equipment of refuse receptacles
- B65F2210/162—Pressing means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refuse Receptacles (AREA)
Abstract
A kind of shaftless screw garbage compression box,Shaftless screw garbage compression box is mainly by case foot,Sewage pipe,Motor,Compress lower box part,Compress upper box part,Case lid,Case lid rotation axis,Button,Foot-driven lever,Foot-driven lever rotation axis,Garbage outlet channel,Dirty water collecting tank,Shaftless screw,Garbage-compressing channel composition,Structure is successively case lid to shaftless screw garbage compression box from top to bottom,Compress upper box part,Compress lower box part,Dirty water collecting tank and case foot,Motor,Shaftless screw and garbage-compressing channel are located at compression lower box part,Rubbish enters garbage-compressing channel by compression upper box part,By the compression of shaftless screw,Rubbish enters garbage outlet channel,And eventually enter into refuse bag,And sewage then passes through limber and enters dirty water collecting tank,Into sewage pipe,And enter sewer pipe,Noise is small when shaftless screw garbage compression box has work,It is easy to maintenance,Failure rate is low,The relatively low feature of manufacturing cost.
Description
Technical field
The invention belongs to environment sanitation facilities, more particularly, to a kind of refuse collector of shaftless screw compression.
Background technique
For applicant by the retrieval website soopat, be related to garbage-compressing has Institutes Of Technology Of Zhejiang to apply
2015107724140 " Household garbage compressors ", basic principle are " compression push-plate center of the invention and turn-screw
Constitute screw pair；It is affixed by four compression struts to compress push-plate and compression piston；Compression piston and compression chamber constitute sliding pair；
First transmission gear connects firmly on turn-screw, and engages with the second transmission gear；Second transmission gear is connected firmly in the first transmission
On axis, while being engaged with the first transmission gear and third transmission gear；Third transmission gear and the 4th transmission gear connect firmly
On second driving shaft, the 4th transmission gear is engaged with the 5th transmission gear；5th transmission gear connects firmly on third transmission shaft, together
Tetra- transmission gear of Shi Yu and the engagement of the 6th transmission gear；6th transmission gear connects firmly on the 4th transmission shaft；Motor driven
Four transmission shafts.The present invention can automatically form rubbish Fast Compression, the force-increasing mechanism of multi-stage gear, and compressing force is big." utilize gear
The method one of pressurization is exactly that noise is bigger, because general gear is limited to the precision of processing technology, when movement be there is no
Mute, secondly being exactly to be pressurized using gear, often structure is more complicated, and the gear ratio that driving wheel and driven wheel obtain has
Limit, generally requires multi-change speed, such as, it is now desired to adjusting the speed a quadrupole single-phase motor is 35 revs/min, if using one
Grade speed regulation realizes that driving wheel is 20 teeth, then driven wheel is 800 teeth, or is converted into diameter, even if active wheel diameter is 10cm,
Driven wheel diameter also substantially 400cm, is changed to multistep speed regulation, then needs the parts such as more gears and transmission shaft and bearing,
Processing technology also becomes complicated, this undoubtedly can larger production cost, in trash compactor, there are also the pressures based on hydraulic way
Contracting machine, hydraulic press need the control elements such as solenoid valve, and the circuit of hydraulic press be usually it is more complicated, this will lead to maintenance at
This height, or even specialized maintenance personnel are needed, this is unfavorable to the product promotion of domestic consumer, because hydraulic product goes wrong, comparison is normal
See, and questions and prospect is relatively more, need repairing if product always goes wrong, can undoubtedly reduce user's likability, hydraulic production
The advantages of product is compression ratio height, is suitble to the occasion of big pressure, but to light duty compressor either domestic consumer, it appears be not so
It is worthwhile.
Summary of the invention
The origin of technical problem：There are high failure rate, ordinary user is difficult to repair hydraulic waste compressor, gear type rubbish
There are at high cost, the big problems of noise for rubbish compressor.
Technical solution：A kind of shaftless screw garbage compression box, shaftless screw garbage compression box include case foot, sewage pipe, electricity
Motivation, compression lower box part, compression upper box part, case lid, case lid rotation axis, button, foot-driven lever, foot-driven lever rotation axis, garbage outlet
Channel, dirty water collecting tank, shaftless screw, garbage-compressing channel, it is characterized in that：
The case foot is the support leg that shaftless screw garbage compression box is placed on the ground, and case foot lowest part is mounting plate, peace
There is mounting hole in loading board, mounting hole is used to fix shaftless screw garbage compression box；
The sewage pipe is located at the lowest part of dirty water collecting tank, and sewage pipe connects or be inserted into sewer pipe with sewer pipe；
The motor is the engine for driving shaftless screw work, and motor needs to become by frequency converter or speed reducer
Speed；
The compression lower box part refers to that compression box is mounted with the space of motor and shaftless screw and garbage-compressing channel, pressure
It is dirty water collecting tank below contracting lower box part, the above is compression upper box part；
The compression upper box part refers to that compression box temporarily stores the space of rubbish；
The case lid is located at the top of compression upper box part, has case lid rotational axis hole and foot-driven lever rotational axis hole, case lid on case lid
For covering compression box；
The case lid rotation axis is located at the top of compression upper box part, and case lid rotation axis pierces into the case lid rotational axis hole on case lid,
In this way, case lid is rotated around case lid rotation axis；
The button is the electric switch for controlling motor start-up and stopping, and button has direct-reverse switch, can
Control motor is rotated in the forward direction and is reversely rotated；
The foot-driven lever consists of three parts, and top is interconnecting piece, and interconnecting piece has connecting hole, and middle part is connecting rod, and lower part is
Foot pedal, there is the groove promoted and rubbed on foot pedal, and foot-driven lever rotation axis pierces into connecting hole and foot pedal rotational axis hole；
The garbage outlet channel is located at the front end in garbage-compressing channel, and garbage outlet Channel front end has cricoid recessed groove,
Facilitate binding refuse bag, straight barrel type and loudspeaker cellular type are divided in garbage outlet channel, and the loudspeaker cellular type refers to that front end exit is greater than
Rear end and circulation passage gradually becomes larger is suitble to pressure when reducing compression when pressure is excessive；
The dirty water collecting tank is used to collect the sewage generated during garbage-compressing, and dirty water collecting tank is loophole shape structure,
The bottommost of its funnel installs sewage pipe；
The shaftless screw is located at the rear end of pressure channel, and power is transmitted to after shaftless screw, and shaftless screw rotates in the forward direction,
Rubbish is pressed into front end by garbage-compressing channel rear end and presses to garbage outlet channel, shaftless screw reversely rotates, then exits pressure
Contracting work, there are two types of shaftless screws, and one is helical surfaces with ratchet, and one is helical surfaces without ratchet, has
The shaftless screw of ratchet is suitable for the rubbish for being easy to tear up；
The garbage-compressing channel is the pipeline of garbage-compressing, and the upper rear end point and compression upper box part of pressure channel communicate,
For receiving rubbish, there is limber below middle part, limber leads to dirty water collecting tank, and the length of shaftless screw is greater than pressure channel
Rear end length.
Beneficial effect：Noise is small when shaftless screw garbage compression box has work, and easy to maintenance, failure rate is low, and safety is high
Effect, compression ratio are big.
Detailed description of the invention
Attached drawing 1 is shaftless screw garbage compression box front schematic view；
Attached drawing 2 is shaftless screw garbage compression box schematic rear view；
Attached drawing 3 is shaftless screw garbage compression box shaftless screw working sections schematic diagram；
Attached drawing 4 is shaftless screw structure enlargement diagram；
Attached drawing 5 is cover structure enlarged diagram；
Attached drawing 6 is ratchet shaftless screw structural schematic diagram；
Attached drawing 7 is foot-driven lever structural schematic diagram,
In figure, 1 is case foot, and 2 be sewage pipe, and 3 be motor, and 4 be compression lower box part, and 5 be compression upper box part, and 6 be case lid, and 7 are
Case lid rotation axis, 8 be button, and 9 be foot-driven lever, and 10 be garbage outlet channel, and 11 be dirty water collecting tank, and 12 be foot-driven lever rotation
Axis, 13 be foot-driven lever fixed frame, and 14 be garbage-compressing channel, and 15 be shaftless screw, and 16 be case lid rotational axis hole, and 17 be foot-driven lever
Rotational axis hole, 18 be connecting hole, and 19 be connecting rod, and 20 be foot pedal, and 21 be garbage outlet channel support frame.
Specific embodiment
Applicant is explained the structure and working principle of shaftless screw garbage compression box referring to attached drawing,
Attached drawing 1, attached drawing 2 and attached drawing 2 show the principle schematic diagram of garbage compression box, are topmost case lids, case lid
Effect is to prevent rainwater from entering garbage compression box, and prevent the peculiar smell in garbage compression box from spreading out of, and prevent mosquitos and flies from multiplying,
It is compression upper box part below case lid, compression upper box part is the temporarily providing room of rubbish, and compressing below upper box part is under compression box
Portion, the motor and speed reducer for compressing lower box part are sealings, in this way, prevent motor and gearbox from generating noise when working,
Power is transmitted to shaftless screw by motor after speed reducer or frequency converter timing, and shaftless screw is located at garbage-compressing channel
Rear end, garbage-compressing channel is the pipeline of garbage-compressing, and the upper rear end point and compression upper box part in garbage-compressing channel communicate,
For receiving rubbish, there is limber below middle part, limber leads to dirty water collecting tank, and the length of shaftless screw is greater than pressure channel
Rear end length, it should be noted that in the case where aerodynamic power is certain, the outer diameter of shaftless screw is smaller, generated pressure
Contracting power is bigger, and still, the outer diameter of shaftless screw becomes smaller, and the internal diameter in corresponding garbage-compressing channel can also become smaller, in this way, if rubbish
Rubbish itself is difficult to be shredded, then may cause can not compress, such as iron block or angle bar can not be torn up, and garbage compression station is received
Rubbish type is complicated, and shaftless screw outer diameter is too small, it is difficult to effectively carry out the work, and for domestic consumer, using the nothing of ratchet-like
Axis spiral can obtain higher compression ratio in lesser dynamic condition, it is therefore possible to use the shaftless spiral shell with ratchet
Spinning contracting, garbage outlet channel are located at the front end in garbage-compressing channel, and garbage outlet Channel front end has cricoid recessed groove, convenient
Refuse bag is bundled, in this way, rubbish is involved in the rear end in garbage-compressing channel by shaftless screw by compression upper box part, and shaftless
Under the rotation of spiral, rubbish is gradually moved forward by the rear end in garbage-compressing channel, due to garbage-compressing Channel front end and rubbish
Exit passageway has rubbish, and rubbish is just extruded, and moisture is extruded, and into dirty water collecting tank, moisture is few, and rubbish can in addition
The air of contact is seldom, can effectively prevent that organic matter rubbish especially food garbage is putrid and deteriorated, and finally, rubbish is by rubbish
Pressure channel enters garbage outlet channel, finally, completing compression process into refuse bag, sewage is then entered by dirty water collecting tank
Sewage pipe eventually enters into sewer pipe,
Dirty water collecting tank is used to collect the sewage generated during garbage-compressing, and dirty water collecting tank is loophole shape structure, funnel
Bottommost install sewage pipe, dirty water collecting tank be located at compression lower box part lower section,
Case lid is located at the top of compression upper box part, there is case lid rotational axis hole and foot-driven lever rotational axis hole on case lid, and case lid is used to cover
Firmly compression box, case lid rotation axis are located at the top of compression upper box part, and case lid rotation axis pierces into the case lid rotational axis hole on case lid, this
Sample, case lid are rotated around case lid rotation axis, and button is the electric switch for controlling motor start-up and stopping, and button has positive and negative
To switch, motor can be controlled and rotate in the forward direction and reversely rotate, foot-driven lever consists of three parts, and top is interconnecting piece, even
Socket part has connecting hole, and middle part is connecting rod, and lower part is foot pedal, there is the groove promoted and rubbed, foot-driven lever rotation axis on foot pedal
Connecting hole and foot pedal rotational axis hole are pierced into, the connecting rod lower part of foot-driven lever is in foot-driven lever fixed frame, foot-driven lever fixed frame
Between have hole, in this way, when preventing foot from stepping on, foot-driven lever displacement is too far, and garbage outlet channel is located at the front end in garbage-compressing channel, rubbish
There is cricoid recessed groove in exit passageway front end, facilitates binding refuse bag,
It should be noted that only so setting reverser, is that exception occurs in the process in garbage-compressing in order to prevent, occurs shaftless
Stuck phenomenon is generated between spiral and garbage-compressing channel, using reversion, then can be exited, after all, draws rubbish with hand, it is most of
People is unwilling that rubbish is also very dirty, can be avoided most stuck phenomenon using reverser.
Claims (1)
1. a kind of shaftless screw channel conveying garbage compression box, shaftless screw garbage compression box includes case foot（1）, sewage pipe（2）,
Motor（3）, compression lower box part（4）, compression upper box part（5）, case lid（6）, case lid rotation axis（7）, button（8）, foot-driven lever
（9）, garbage outlet channel（10）, dirty water collecting tank（11）, foot-driven lever rotation axis（12）, garbage-compressing channel（14）, shaftless spiral shell
Rotation（15）, it is characterized in that：
The case foot（1）It is the support leg that shaftless screw garbage compression box is placed on the ground, case foot lowest part is mounting plate,
There is mounting hole on mounting plate, mounting hole is used to fix shaftless screw garbage compression box；
The sewage pipe（2）Positioned at the lowest part of dirty water collecting tank, sewage pipe（2）It connects or is inserted into sewer pipe and be lauched
Pipeline；
The motor（3）It is the engine for driving shaftless screw work, motor（3）Become by frequency converter or speed reducer
Speed；
The compression lower box part（4）Refer to that shaftless screw garbage compression box is mounted with motor（3）And shaftless screw（15）With
And garbage-compressing channel（14）Space, compress lower box part（4）Below be dirty water collecting tank（11）, the above is compression upper box part
（5）；
The compression upper box part（5）Refer to that shaftless screw garbage compression box temporarily stores the space of rubbish；
The case lid（6）Positioned at compression upper box part（5）Top, case lid（6）On have case lid rotational axis hole（16）And foot-driven lever
Rotational axis hole（17）, case lid be used to cover shaftless screw garbage compression box；
The case lid rotation axis（7）Positioned at compression upper box part（5）Top, case lid rotation axis（7）Pierce into case lid（6）On case
Lid rotational axis hole（16）, in this way, case lid（6）Around case lid rotation axis（7）Rotation；
The button（8）It is the electric switch for controlling motor start-up and stopping, button（8）With direct-reverse switch,
Motor can be controlled to rotate in the forward direction and reversely rotate；
The foot-driven lever（9）It consists of three parts, top is interconnecting piece, and interconnecting piece has connecting hole（18）, middle part is connecting rod
（19）, lower part is foot pedal（20）, foot pedal（20）On have promote rub groove, foot-driven lever rotation axis（12）Pierce into connecting hole
（18）With foot pedal rotational axis hole（17）；
The garbage outlet channel（10）Positioned at garbage-compressing channel（14）Front end, garbage outlet channel（10）There is ring in front end
The recessed groove of shape, before facilitating binding refuse bag, garbage outlet channel that straight barrel type and horn mouth formula, the horn mouth formula is divided to refer to
Mouth is brought out greater than rear end and channel gradually becomes larger, is suitble to pressure when reducing compression when pressure is excessive；
The dirty water collecting tank（11）For collecting the sewage generated during garbage-compressing, dirty water collecting tank（11）For loophole
The bottommost of shape structure, funnel installs sewage pipe（2）；
The shaftless screw（15）It is arranged in garbage-compressing channel（14）Rear end, power is transmitted to after shaftless screw, nothing
Axis spiral rotates in the forward direction, by rubbish by garbage-compressing channel（14）Rear end presses to front end and presses to garbage outlet channel（10）, nothing
Axis spiral reversely rotates, then exits compression work, and there are two types of shaftless screws, and one is helical surfaces to have ratchet, one is
For helical surface without ratchet, the shaftless screw with ratchet is suitable for the rubbish for being easy to tear up；
The garbage-compressing channel（14）It is the pipeline of garbage-compressing, the upper rear end point and shaftless screw in garbage-compressing channel
Garbage-compressing upper box part（5）It communicates, for receiving rubbish, has limber below middle part, limber leads to dirty water collecting tank（11）,
Shaftless screw（15）Length be greater than garbage-compressing channel（14）Rear end length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710958473.6A CN108861211A (en) | 2017-10-16 | 2017-10-16 | A kind of shaftless screw channel conveying garbage compression box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710958473.6A CN108861211A (en) | 2017-10-16 | 2017-10-16 | A kind of shaftless screw channel conveying garbage compression box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108861211A true CN108861211A (en) | 2018-11-23 |
Family
ID=64325393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710958473.6A Pending CN108861211A (en) | 2017-10-16 | 2017-10-16 | A kind of shaftless screw channel conveying garbage compression box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108861211A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9214824D0 (en) * | 1991-11-05 | 1992-08-26 | Suk Cess Ltd | Refuse collecting apparatus |
| CN101476737A (en) * | 2009-01-12 | 2009-07-08 | 李刚 | Environment-friendly grinding machine for making rubbish inflammable |
| CN101491951A (en) * | 2009-03-06 | 2009-07-29 | 任春乐 | Domestic waste extruder |
| CN205219813U (en) * | 2015-12-17 | 2016-05-11 | 江西省左氏实业有限公司 | Rubbish compressing device |
| CN205418723U (en) * | 2016-03-16 | 2016-08-03 | 山东东融信息产业股份有限公司 | Car is stored in compression of rotation type rubbish |
| CN106944207A (en) * | 2017-03-19 | 2017-07-14 | 朱石明 | It is a kind of that there is the paper scrap class garbage disposal case for crushing compression function |
| CN207312358U (en) * | 2017-10-16 | 2018-05-04 | 张家界金慈环保科技有限公司 | A kind of shaftless screw passage conveying garbage compression box |
-
2017
- 2017-10-16 CN CN201710958473.6A patent/CN108861211A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9214824D0 (en) * | 1991-11-05 | 1992-08-26 | Suk Cess Ltd | Refuse collecting apparatus |
| CN101476737A (en) * | 2009-01-12 | 2009-07-08 | 李刚 | Environment-friendly grinding machine for making rubbish inflammable |
| CN101491951A (en) * | 2009-03-06 | 2009-07-29 | 任春乐 | Domestic waste extruder |
| CN205219813U (en) * | 2015-12-17 | 2016-05-11 | 江西省左氏实业有限公司 | Rubbish compressing device |
| CN205418723U (en) * | 2016-03-16 | 2016-08-03 | 山东东融信息产业股份有限公司 | Car is stored in compression of rotation type rubbish |
| CN106944207A (en) * | 2017-03-19 | 2017-07-14 | 朱石明 | It is a kind of that there is the paper scrap class garbage disposal case for crushing compression function |
| CN207312358U (en) * | 2017-10-16 | 2018-05-04 | 张家界金慈环保科技有限公司 | A kind of shaftless screw passage conveying garbage compression box |
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Application publication date: 20181123 |
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| WD01 | Invention patent application deemed withdrawn after publication |