CN110680230A - Suction type road surface cleaning machine - Google Patents
Suction type road surface cleaning machine Download PDFInfo
- Publication number
- CN110680230A CN110680230A CN201910967252.4A CN201910967252A CN110680230A CN 110680230 A CN110680230 A CN 110680230A CN 201910967252 A CN201910967252 A CN 201910967252A CN 110680230 A CN110680230 A CN 110680230A
- Authority
- CN
- China
- Prior art keywords
- suction
- suction head
- road surface
- type road
- suction type
- 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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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/005—Mobile installations, particularly for upkeeping in situ road or railway furniture, for instance road barricades, traffic signs; Mobile installations particularly for upkeeping tunnel walls
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
- E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction nozzles
- E01H1/0845—Apparatus dislodging all of the dirt by suction ; Suction nozzles with mechanical loosening or feeding instruments for the dirt to be sucked- up, e.g. brushes, scrapers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a suction type road surface cleaning machine which comprises a suction head device, a pipeline and a suction device, wherein one end of the pipeline is connected with the suction head device, the other end of the pipeline is connected with the suction device, the bottom of the suction device is connected with a box body, the box body is fixed on a carrier, the box body adopts a drawable storage structure, and one side of the suction head device is provided with a suction head rolling brush structure. The device is small in overall size, can adapt to a narrow space, and solves the problems that the existing sweeping machine is large in size, and suction heads are fixed, so that the suction type cleaning is not flexible, and some dead corners cannot be thoroughly cleaned; the portable storage box body structure is used, the problem that the existing dust collection equipment mostly adopts a filter screen and a dust collection bag, and secondary dust raising during disassembly and cleaning causes direct harm to human health is solved, and the rechargeable mobile power supply meets the outdoor operation requirement; the suction way is used to easily clean the light sundries, and the rolling brush is arranged at the rear end of the suction head to deal with the special concave-convex road surface and the sundries stained with water.
Description
Technical Field
The invention belongs to the field of road cleaning equipment, and particularly relates to an absorption type road surface cleaning machine.
Background
The existing road surface cleaning equipment and technology mainly comprise a medium-large road sweeper, a road cleaner and the like, wherein the road sweeper comprises a vehicle chassis, an auxiliary engine, a fan, a motor, a dustbin water tank, a sucking disc, a sweeping disc, a filter screen, a hydraulic device and the like. The side brush of the sweeping vehicle sweeps the garbage at the corner from outside to inside to the range which can be swept by the main brush in a centralized manner; the main brush cleans the garbage to the front of the sucking disc, the sucking disc continuously sucks the garbage cleaned by the main brush into the garbage can, and the filtering system filters the dust. The devices are large in size, clumsy and not suitable for ground cleaning of complex road conditions such as non-motor lanes and sidewalks; the problem that suction cleaning is inflexible due to the fact that a suction head is fixed, and dead corners cannot be thoroughly cleaned
The existing small-sized floor cleaning equipment is a household dust collector which mainly comprises a motor, a speed regulator, a dust bag, a front filter disc, a rear filter disc, a press filter material, a take-up and pay-off mechanism, a dust fullness indicator, a button or a sliding switch and the like. Meanwhile, air in the impeller is continuously supplemented by air in the dust suction part at the front end of the fan, so that instant vacuum is formed in the dust suction part, namely a relatively high negative pressure difference is formed between the inside of the dust suction part and the external atmospheric pressure, under the action of the negative pressure difference, garbage and dust close to the suction nozzle enter the dust collector along with air flow, the garbage and dust pass through the filter in the dust collector, are retained in the dust storage box, and the air is discharged from the dust collector into a room after being filtered, so that the whole dust collection whole process is completed. It has solved bulky drawback, but is subject to the inconvenient and difficult clearance scheduling problem of the moist ground of clearance ponding of outdoor power cord, and adopts filter screen and dust bag more, has a raise dust problem when dismantling the washing, has direct harm to human health. The lightweight pavement sundries such as poplar flying wadding, Chinese parasol tree fruit wool and the like are difficult to clean in a sweeping mode, only the principle of a dust collector can be used for cleaning, and the problems that the outdoor pavement condition has certain complexity, the cleaned objects are easy to be wetted and the like are still the problems which cannot be overcome by a household dust collector.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide an absorption type road surface cleaning machine which is small in overall size and can adapt to a narrow space.
The technical scheme is as follows: the suction head device comprises a suction head device, a pipeline and a suction device, wherein one end of the pipeline is connected with the suction head device, the other end of the pipeline is connected with the suction device, the bottom of the suction device is connected with a box body, the box body is fixed on a carrier, the box body adopts a drawable storage structure, and one side of the suction head device is provided with a suction head rolling brush structure.
The suction head device include the suction head shell body, one side of suction head shell body is connected with suction head round brush structure, suction head round brush structure include the motor, the motor passes through bevel gear group and is connected with the transmission shaft, the both ends of transmission shaft are connected with the drum shaft respectively, the epaxial cover of drum has the cylinder brush. Is used for dealing with special concave-convex road surfaces and water and sundries.
The box include outer box and interior box, the internal box that is equipped with of outer box, interior box and the inseparable laminating of outer box, outer box one side be equipped with the export, this export is equipped with fine and close screen panel, the front portion of outer box is fixed with the suction head and places the frame, the bottom is fixed with the carrier.
One side of interior box is equipped with the filter screen, and this filter screen corresponds with the exit position of outer box, and interior box is fixed through the fixed spanner of carrier curb plate.
The suction device comprises a shell, the top of the shell is connected with a pipeline, the bottom of the shell is connected with a box body, a fan supporting frame is arranged inside the shell, the top of the fan supporting frame is connected with a fan protection screen, and a fan is arranged inside the fan supporting frame.
The carrier include the bottom plate, the bottom plate both sides respectively are equipped with a curb plate, are equipped with fixed spanner on one of them curb plate, the bottom plate front portion is equipped with the handrail, the bottom is equipped with the universal wheel, the bottom plate upper surface is equipped with the fixed stay for with outer box body coupling.
The roller brush is connected with the roller shaft through a spline, and the tail end of the roller shaft is provided with a protection wheel so as to reduce the friction loss between the bottom surface of the shell and the ground.
The shell and the fan supporting frame are made of aluminum alloy materials, one side of the shell and one side of the fan supporting frame are provided with a small hole, and a leather sealing plug is arranged at the position of the small hole to reduce air leakage.
The fan protection mesh enclosure is made by a compact mesh on a conical framework, adopts a conical appearance design, has a good shunting effect on sucked light granular sundries, can avoid the contact of the fan and the sundries, and provides guarantee for continuous and efficient work of a suction device.
The suction head outer shell is made of ABS plastic, and the whole mass is light.
Has the advantages that: the invention has the following advantages:
(1) the whole size of the equipment is small, the equipment can adapt to a narrow space, and the problems that the existing sweeping machine is large in size, and a suction head is fixed, so that the suction type cleaning is not flexible, and some dead corners cannot be thoroughly cleaned are solved;
(2) the portable storage box body structure is used, the problem that the existing dust collection equipment mostly adopts a filter screen and a dust collection bag, and secondary dust raising during disassembly and cleaning causes direct harm to human health is solved, and the rechargeable mobile power supply meets the outdoor operation requirement;
(3) the suction way is used to easily clean the light sundries, and the rolling brush is arranged at the rear end of the suction head to deal with the special concave-convex road surface and the sundries stained with water.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a tip assembly of the present invention;
FIG. 3 is a schematic view of a tip roller brush configuration of the present invention;
FIG. 4 is a schematic view of a suction device of the present invention;
FIG. 5 is a schematic view of the structure of the case of the present invention;
FIG. 6 is a schematic view of a carrier structure according to the present invention;
FIG. 7 is a cross-sectional view of a tip assembly of the present invention;
FIG. 8 is a cross-sectional view of the case and carrier structure of the present invention;
fig. 9 is a schematic structural view of the inner box of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 8, the present invention includes a suction head device 1, a pipeline 2, a suction device 3, a box 4 and a carrier 5, as shown in fig. 2, the suction head device 1 includes a suction head outer housing 6 and a suction head rolling brush structure 7, the suction head outer housing 6 is made of ABS plastic, the suction head rolling brush structure 7 is fixed at the central position of the back of the suction head outer housing 6, and the balance of the suction head device 1 in the working state is ensured as much as possible, as shown in fig. 3, the suction head rolling brush structure 7 adopts a symmetrically distributed structure, the motor 9 is arranged at the central position, as shown in fig. 7, the top of the motor 9 is fixed with the suction head outer housing 6, the output shaft of the motor 9 is sleeved with a first bevel gear, the left side of the first bevel gear is provided with a second bevel gear engaged with the first bevel gear to form a bevel gear group 8, the second bevel gear is sleeved on a transmission shaft, the roller brush 14 is connected with the roller shaft 10 through a spline to ensure stable transmission. The transmission shaft 13 is driven to rotate by the motor 9 and the bevel gear group 8, the roller brushes 14 are driven to rotate by the roller shafts 10 at the two ends of the transmission shaft, the protective gaskets 12 are arranged between the roller brushes 14 and the roller shafts 10, and the tail ends of the roller shafts 10 are provided with the protective wheels 11 so as to reduce the friction loss between the bottom surface of the suction head outer shell 6 and the ground. As shown in figure 7, the suction head outer shell 6 is thickened and perforated at the shaft end of the roller shaft 10, the roller shaft 10 is embedded, the axial fixation of the roller shaft 10 is realized, and the motor groove is arranged on the suction head outer shell 6, so that the limitation of the motor 9 can be realized.
As shown in figure 1, one end of the pipeline 2 is connected with the suction head device 1, the other end is connected with the suction device 3, the pipeline 2 is a flexible pipe with the wall thickness of 3-5mm, the pipeline is connected with the contact end of the suction head device 1 by a plug-in type, and is connected with the contact end of the suction device 3 by a flange plate.
As shown in fig. 4, the suction device 3 is provided with flanges at the top and bottom of the suction device 3, the flange at the top is used for connecting with the pipeline 2, and the flange at the bottom is used for connecting with the box 4. The suction device 3 comprises a shell 15, a fan protection screen 17 is connected inside the shell 15, the fan protection screen 17 is made of a compact net sleeve on a conical framework, the bottom of the fan protection screen 17 is connected with a fan support frame 16 through threads, the side face of the fan support frame 16 is connected with the shell 15, the shell 15 and the fan support frame 16 are made of aluminum alloy materials to reduce weight as much as possible, small holes with the diameter of 10mm are reserved in the two parts, such as a position D shown in fig. 4, to serve as an electric wire channel, and a leather sealing plug is arranged at the small holes to reduce air leakage. A fan 18 is arranged in the fan support frame 16, the top of the fan 18 is connected with a fan motor, and the fan motor is fixedly arranged on the fan support frame 16.
The housing 4 is composed of an outer housing 19, an inner housing 21, and a tip placement frame 20, as shown in fig. 5. An inner box body 21 is arranged in the outer box body 19, the inner box body 21 is tightly attached to the outer box body 19, an outlet is formed in one side of the outer box body 19, and a compact mesh cover is arranged at the outlet, so that sundries are left in the inner box body 21; the other side is fixed with an L-shaped structure, the top of the L-shaped structure is positioned above the outer box body 19, the top of the L-shaped structure is provided with a round hole for inserting the suction device 3, the shell 15 of the suction device 3 is sleeved in the round hole, and the bottom of the L-shaped structure is connected with the flange plate at the top of the outer box body 19 through the flange plate. As shown in fig. 9, which is a schematic structural diagram of the inner box 21, a filter screen 30 is disposed on one side of the inner box 21, the filter screen 30 is externally covered on the inner box 21, and the position of the filter screen 30 corresponds to the outlet of the outer box 19. A suction head placing frame 20 is arranged on one side of the outer box 19, and the placing frame and the outer box 19 are fixed by a T-shaped groove. The rear part of the outer box 19 is provided with a power supply placing space for supplying power to the device, and the bottom part of the outer box is fixed with the carrier 5 through four positioning holes. The inner box 21 is secured by a rotatable spanner 22 on the carrier side plate 28 as shown in fig. 8.
As shown in fig. 6, the carrier 5 is a four-wheel cart, and is composed of a fixed wrench 22, a bottom plate 23, a pedal 26, a handrail 27, a side plate 28, a fixed pillar 29, and four universal wheels, wherein the four fixed pillars 29 are disposed on the upper surface of the bottom plate 23 for fixing with the outer box 19, the four universal wheels are disposed on the bottom, and include two front wheels 24 and two rear wheels 25, the two front wheels 24 use common universal wheels, and the two rear wheels 25 use a foot brake for braking. Two sides of the upper surface of the bottom plate 23 are respectively provided with a side plate 28, wherein one end of one side plate 28 is provided with a fixed wrench 22 for fixing the inner box body 21.
When cleaning the flocculent impurities such as poplar flying cotton and Chinese parasol on the road surface, the suction device 3 is started, a cleaner holds the suction head device 1 of the cleaner by hand, the suction head is close to the ground as much as possible, the motor in the suction device 3 rotates at high speed, air is sucked from the suction inlet, the inner box body 21 generates a certain vacuum, and a negative pressure difference is formed between the vacuum and the external atmospheric pressure, so that the floccules on the ground are sucked into the pipeline 2 under the action of the negative pressure difference and finally are stored in the inner box body 21. If the bottom surface is wet or has obvious accumulated water, the sucker rolling brush structure 7 at the back of the sucker device 1 can be opened, and sundries stuck on the ground are peeled off from the ground through the rotary scraping effect of the roller brush 14, so that the cleaning effect is realized. When the inner box 21 is full, the fixed wrench 22 is pulled counterclockwise, the inner box 21 can be taken out to pour out the sundries, and after the treatment, the inner box returns to the original position, and the cleaning work can be continued.
The device has small integral volume, and can directly absorb sundries in a space and a road surface with complex and narrow topography by using the suction head; the shell is made of plastic, the whole weight is light, and the filter screen is externally arranged and covers the inner box body, so that the filter screen can be directly washed by water during disassembly, the problem of secondary dust emission is avoided, and a certain protection effect on the health of cleaning personnel is achieved; the fan protection mesh enclosure adopts the design of toper outward appearance, has fine reposition of redundant personnel effect to inspiratory light graininess debris simultaneously, can avoid the contact of fan and debris, provides the guarantee for suction device lasts, works high-efficiently.
Claims (10)
1. The utility model provides a suction type road surface cleaning machine, includes suction head device, pipeline and suction device, suction head device is connected to the one end of pipeline, and suction device is connected to the other end, its characterized in that, suction device's bottom is connected with the box, and the box is fixed on the carrier, the box adopt and to take out the formula and store the structure, one side of suction head device is equipped with suction head round brush structure.
2. The suction type road surface cleaning machine according to claim 1, wherein the suction head device comprises a suction head outer shell, a suction head rolling brush structure is connected to one side of the suction head outer shell, the suction head rolling brush structure comprises a motor, the motor is connected with a transmission shaft through a bevel gear set, two ends of the transmission shaft are respectively connected with a roller shaft, and a roller brush is sleeved on the roller shaft.
3. The suction type road surface cleaner as claimed in claim 1, wherein the casing includes an outer casing and an inner casing, the inner casing is disposed in the outer casing, the inner casing is closely attached to the outer casing, an outlet is disposed on one side of the outer casing, a dense mesh enclosure is disposed at the outlet, a suction head placing frame is fixed to a front portion of the outer casing, and a bottom portion of the outer casing is fixed to the carrier.
4. The suction type road surface cleaner as claimed in claim 3, wherein a filter screen is provided at one side of the inner casing, the filter screen corresponding to the outlet of the outer casing, and the inner casing is fixed by a fixing wrench of the side plate of the carrier.
5. The suction type road surface cleaning machine as claimed in claim 1, wherein the suction device comprises a housing, the top of the housing is connected with the pipeline, the bottom of the housing is connected with the box body, a fan supporting frame is arranged inside the housing, the top of the fan supporting frame is connected with a fan protection screen, and a fan is arranged inside the fan supporting frame.
6. The suction type pavement cleaning machine as claimed in claim 1, wherein the carriage includes a base plate, a side plate is provided on each side of the base plate, a fixing wrench is provided on one side plate, a handrail is provided on a front portion of the base plate, universal wheels are provided on the base plate, and a fixing support is provided on an upper surface of the base plate for connecting with the outer case.
7. The suction type road surface cleaning machine as claimed in claim 2, wherein the roller brush is connected with a roller shaft through a spline, and a protection wheel is arranged at the tail end of the roller shaft.
8. The suction type road surface cleaning machine as claimed in claim 5, wherein the casing and the fan supporting frame are made of aluminum alloy, and one side of the casing and one side of the fan supporting frame are provided with a small hole.
9. The suction type road sweeper of claim 5, wherein the fan guard is formed by a dense mesh sleeved on a conical frame.
10. The suction type road sweeper of claim 2, wherein the suction head outer housing is made of ABS plastic.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910967252.4A CN110680230A (en) | 2019-10-12 | 2019-10-12 | Suction type road surface cleaning machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910967252.4A CN110680230A (en) | 2019-10-12 | 2019-10-12 | Suction type road surface cleaning machine |
Publications (1)
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CN110680230A true CN110680230A (en) | 2020-01-14 |
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ID=69112166
Family Applications (1)
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CN201910967252.4A Pending CN110680230A (en) | 2019-10-12 | 2019-10-12 | Suction type road surface cleaning machine |
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CN203987874U (en) * | 2014-06-20 | 2014-12-10 | 浙江工业大学 | Wiping integrated machine is inhaled on floor |
CN105249885A (en) * | 2015-11-06 | 2016-01-20 | 武汉科技大学 | Hand pushing type electric deduster |
CN205775019U (en) * | 2016-06-22 | 2016-12-07 | 天津市全利源地毯有限公司 | A kind of spinning machine dust collection equipment being easy to movement |
CN106930217A (en) * | 2017-04-25 | 2017-07-07 | 柳州三农科技有限公司 | A kind of agricultural gardens falling leaves recovering device |
CN207143807U (en) * | 2017-08-16 | 2018-03-27 | 张磊刚 | A kind of urban road engineering environment-protective desilting device |
CN108755538A (en) * | 2018-08-02 | 2018-11-06 | 芜湖水淼环保科技有限公司 | A kind of environmental protection gardens fallen leaves collection and treatment device |
CN108888186A (en) * | 2018-08-07 | 2018-11-27 | 福建省三林生态科技有限公司 | A kind of furniture cleaner with preferable dustproof function |
CN108903788A (en) * | 2018-07-12 | 2018-11-30 | 安徽依采妮纤维材料科技有限公司 | A kind of clothing waste material recovery device |
CN109235347A (en) * | 2018-10-25 | 2019-01-18 | 肖江江 | Environmental protection equipment is used in a kind of processing of fallen leaves |
CN109457649A (en) * | 2019-01-03 | 2019-03-12 | 甘肃兴华环境设施有限公司 | A kind of dry type environmental sanitation dust catcher |
CN208973664U (en) * | 2018-05-31 | 2019-06-14 | 胡红 | A kind of interior decoration construction dust isolating device |
-
2019
- 2019-10-12 CN CN201910967252.4A patent/CN110680230A/en active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN203987874U (en) * | 2014-06-20 | 2014-12-10 | 浙江工业大学 | Wiping integrated machine is inhaled on floor |
CN105249885A (en) * | 2015-11-06 | 2016-01-20 | 武汉科技大学 | Hand pushing type electric deduster |
CN205775019U (en) * | 2016-06-22 | 2016-12-07 | 天津市全利源地毯有限公司 | A kind of spinning machine dust collection equipment being easy to movement |
CN106930217A (en) * | 2017-04-25 | 2017-07-07 | 柳州三农科技有限公司 | A kind of agricultural gardens falling leaves recovering device |
CN207143807U (en) * | 2017-08-16 | 2018-03-27 | 张磊刚 | A kind of urban road engineering environment-protective desilting device |
CN208973664U (en) * | 2018-05-31 | 2019-06-14 | 胡红 | A kind of interior decoration construction dust isolating device |
CN108903788A (en) * | 2018-07-12 | 2018-11-30 | 安徽依采妮纤维材料科技有限公司 | A kind of clothing waste material recovery device |
CN108755538A (en) * | 2018-08-02 | 2018-11-06 | 芜湖水淼环保科技有限公司 | A kind of environmental protection gardens fallen leaves collection and treatment device |
CN108888186A (en) * | 2018-08-07 | 2018-11-27 | 福建省三林生态科技有限公司 | A kind of furniture cleaner with preferable dustproof function |
CN109235347A (en) * | 2018-10-25 | 2019-01-18 | 肖江江 | Environmental protection equipment is used in a kind of processing of fallen leaves |
CN109457649A (en) * | 2019-01-03 | 2019-03-12 | 甘肃兴华环境设施有限公司 | A kind of dry type environmental sanitation dust catcher |
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Application publication date: 20200114 |