CN108560465B - Blowing-sucking road cleaning vehicle - Google Patents
Blowing-sucking road cleaning vehicle Download PDFInfo
- Publication number
- CN108560465B CN108560465B CN201810555870.3A CN201810555870A CN108560465B CN 108560465 B CN108560465 B CN 108560465B CN 201810555870 A CN201810555870 A CN 201810555870A CN 108560465 B CN108560465 B CN 108560465B
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- Prior art keywords
- rotating shaft
- dustbin
- blowing
- suction
- dust
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Classifications
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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
- E01H1/0863—Apparatus loosening or removing the dirt by blowing and subsequently dislodging it at least partially by suction ; Combined suction and blowing nozzles
Abstract
The utility model provides a blowing-sucking road cleaning vehicle, including the electric motor car chassis, be equipped with built-in filter and the dustbin of assembly exhaust fan on the electric motor car chassis, be equipped with the bottom suction dust arrester comprising loudspeaker-shaped dust absorption mouth and the peripheral fan wheel of arranging this dust absorption mouth lower extreme below the electric motor car chassis, be equipped with the side dust arrester comprising side suction flexible pipe and dust absorption elbow on the right side of electric motor car chassis, dust absorption mouth and side suction flexible pipe are through switching-over tee bend intercommunication to the dustbin in, bottom suction dust arrester is equipped with bottom suction dust arrester lift electric putter and fan motor, dust absorption elbow assembly dust absorption elbow position adjustment mechanism. The invention realizes the road cleaning operation by using the air flow completely, and has the characteristics of large sweeping coverage area, strong suction force, high working efficiency, no secondary dust emission, simple equipment structure, no cleaning abrasion parts and convenient use and maintenance; and can clear up the rubbish on both sides of road.
Description
Technical Field
The invention relates to a road cleaning vehicle, in particular to a blowing-sucking type road cleaning vehicle.
Background
Blowing-sucking road cleaning vehicle changes the prior artSweeping vehicleThe traditional mode of brushing with the disk brush rotation is all accomplished the operation with the air current, and the blowing-sucking combines, utilizes the air current motion mode to store dust and garbage collection, and no secondary raise dust can effectively reduce dust pollution, improves air quality, reduces the content of inhalable particulate matter in the air, has simple structure simultaneously, and wearing and tearing spare is few, uses the convenient characteristics of maintaining, consequently becomes the development direction of road cleaning vehicle. The blowing and sucking type road cleaning vehicle disclosed in the prior art comprises a blowing and sucking device consisting of a blowing pipe arranged in the center and a suction hood surrounding the blowing pipe in the center, wherein blowing wind power and suction wind power are relatively weak, the covered area is small, and the cleaning efficiency is low; in addition, the cleaning of garbage at two sides of a road can not be completed only by means of the existing dust blowing and absorbing device, dead corners are easy to leave for cleaning, and the road cleaning range is limited.
Disclosure of Invention
The invention aims to solve the problems and provide a blowing-sucking type road cleaning vehicle which has high cleaning efficiency and can clean the road surface and garbage at two sides of the road.
The technical scheme for achieving the purpose is as follows: the utility model provides a blowing-sucking type road cleaning vehicle, includes the electric motor car chassis on be equipped with the dustbin, be equipped with the horizontal baffle that separates its inside into lower part rubbish storehouse and upper portion filtration storehouse in this dustbin, be equipped with the air current circulation mouth on this horizontal baffle upper portion filtration storehouse in be equipped with the filter, the higher authority of dustbin is equipped with the exhaust fan, be equipped with the switching-over tee bend in the front of dustbin, the air outlet of this switching-over tee bend communicates to in the lower part rubbish storehouse, the electric motor car chassis be equipped with bottom suction dust arrester, the side suction flexible pipe of front end assembly dust absorption elbow and dust absorption elbow position adjustment device; the reversing tee joint comprises a tee pipe body, wherein a reversing baffle is arranged in the tee pipe body, and a baffle rotating shaft and a baffle rotating speed reducing motor are assembled on the reversing baffle; the bottom suction dust collection device is provided with a horizontally arranged connecting plate, a horn-shaped dust collection nozzle is connected with a circular hole on the connecting plate, the lower end of the dust collection nozzle is connected with a guide cylinder with an inward-folding conical surface at the lower part through a radial connecting plate coaxial center, a fan cylinder is arranged in the guide cylinder coaxially, blades are uniformly distributed on the outer side of the fan cylinder to form a fan wheel, the upper end of the fan cylinder is connected with a fan hub, the upper end of the fan hub is connected with a driven belt pulley with a transmission mechanism, the driven belt pulley is assembled on the upper part of the dust collection nozzle through a bearing, the upper part of the connecting plate is provided with a bottom suction dust collection device lifting electric push rod and a fan motor, the upper end of the bottom suction dust collection device lifting electric push rod is connected with a chassis of the electric vehicle, the output shaft of the fan motor is provided with a driving belt pulley with the transmission mechanism, the upper port of the dust collection nozzle is connected with an air inlet of a reversing tee, and the rear end of the side suction telescopic pipe is connected with the other air inlet of the reversing tee; the dust absorption elbow position adjusting device is provided with a vertical rotating shaft and an electric push rod rotating shaft driving mechanism which are assembled on the chassis of the electric vehicle, the electric push rod rotating shaft driving mechanism consists of a rotating shaft gear fixedly arranged on the vertical rotating shaft, a rotating shaft rack which is assembled at the front end of the rotating shaft driving electric push rod and meshed with the rotating shaft gear, the lower part of the vertical rotating shaft is hinged with a cross beam, the upper part of the vertical rotating shaft is provided with a cross beam inclination adjusting mechanism, the cross beam inclination adjusting mechanism consists of a cross beam inclination adjusting speed reducing motor hinged on the upper part of the vertical rotating shaft, a screw rod connected with an output shaft of the cross beam inclination adjusting speed reducing motor and a screw rod nut hinged on the middle part of the cross beam, the cross beam is provided with a telescopic tube length adjusting mechanism for adjusting the length of a side suction telescopic tube, the telescopic tube length adjusting speed reducing motor is arranged at the front end of the cross beam, a telescopic tube length adjusting gear rack mechanism is arranged on an output shaft of the telescopic tube length adjusting speed reducing motor, the telescopic tube length adjusting gear rack mechanism is hinged with a gear rack in the cross beam, and the telescopic tube length adjusting speed reducing mechanism is fixedly connected with a telescopic tube rack.
In the blowing-sucking road cleaning vehicle, the guide cylinder is provided with the side blowing door, and the side blowing door is assembled with the side blowing door rotating shaft and the side blowing door driving gear motor.
According to the blowing-sucking road cleaning vehicle, the dustbin is arranged at the bottom of the bin with the trapezoid cross section, and the belt conveyor is arranged at the bottom of the bin with the trapezoid cross section.
The blowing-sucking road cleaning vehicle is characterized in that a garbage bin door corresponding to the lower garbage bin is arranged at the lower part of the rear of the garbage bin, and a filtering bin door corresponding to the upper filtering bin is arranged at the upper part of the rear of the garbage bin.
The invention has the beneficial effects that:
1. the road cleaning operation is completed by using the air flow completely, meanwhile, the filter is utilized to avoid dust overflow, secondary dust emission is avoided in the road cleaning process, dust pollution can be effectively reduced, air quality is improved, the content of inhalable particles in the air is reduced, and the road cleaning device has the characteristics of simple structure, no cleaning abrasion parts, convenience in use and maintenance and low cost;
2. the dust and the garbage are separated from the ground by the annular blowing device and blown to the center, and then are sucked into the dustbin through the dust suction nozzle arranged at the center, so that the dust and the garbage are strong in blowing wind power, large in coverage area, good in pavement cleaning effect and high in working efficiency;
3. the side suction telescopic pipes are arranged to clean garbage on the roadside and on the two sides of the road, such as the roadside lawn, under flowers and plants and in tree pits, so that the functions and the cleaning operation range of the road cleaning vehicle are increased;
4. the configured belt conveyor is utilized to realize the mechanized discharge of the garbage in the garbage bin, so that the working performance and the working efficiency of the road cleaning vehicle are improved;
5. the guide cylinder of the bottom suction dust collection device is provided with a side blowing door, so that the garbage and dust stored in the root of the road shoulder can be thoroughly removed without dead angles.
Drawings
Fig. 1 is a schematic diagram of the structure of the blowing-sucking road cleaning vehicle.
Fig. 2 is a schematic diagram of a reversing three-way structure of the blowing-sucking road cleaning vehicle.
Fig. 3 is a schematic diagram of a bottom suction dust collector of the blowing-sucking road cleaning vehicle.
Fig. 4 is a schematic diagram of an assembly structure of a side suction telescopic tube and a dust suction elbow of the blowing-sucking type road cleaning vehicle.
In the figure: 1. an electric vehicle chassis; 2. a dustbin; 3. a horizontal partition; 4. a filter; 5. an exhaust fan; 6. a reversing tee joint; 61. a three-way pipe body; 62. A reversing baffle; 63. A baffle rotating shaft; 64. the baffle rotates a speed reducing motor; 7. a bottom suction dust collection device; 71. a connecting plate; 72. a dust suction nozzle; 73. a guide cylinder; 74. a blower cylinder; 75. a blade; 76. a fan hub; 77. a belt drive mechanism; 78. lifting the electric push rod of the bottom suction dust collection device; 79. a fan motor; 710. a side-blowing door; 711. a side-blowing door rotating shaft; 712. a side-blowing door drives a gear motor; 8. dust collection elbow; 9. a side suction telescopic pipe; 10. a dust collection elbow position adjusting device; 101. a rotating shaft is vertically arranged; 102. a rotating shaft driving mechanism of the electric push rod; 103. a cross beam; 104. a beam inclination angle adjusting mechanism; 105. a telescopic tube length adjusting mechanism; 11. a belt conveyor; 12. a garbage bin door; 13. and (5) a filtering bin door.
Detailed Description
Specific embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1, the blowing and sucking type road cleaning vehicle comprises an electric vehicle chassis 1, wherein the electric vehicle chassis 1 can be a three-wheel electric vehicle chassis or a four-wheel electric vehicle chassis. The electric vehicle chassis 1 is provided with a rectangular dustbin 2 positioned at the rear of a cab, the dustbin 2 is provided with a horizontal partition plate 3 for dividing the interior of the dustbin into a lower dustbin and an upper filter bin, and the rear part of the horizontal partition plate 3 is provided with an airflow circulation port which can be a round port or a rectangular port for assembling a filter screen or a plurality of strip-shaped ports distributed transversely. A filter 4 is fitted in said upper filter house, which filter 4 is a pleated panel filter, as in the embodiment of fig. 1. An exhaust outlet is arranged on the upper surface of the dustbin 2 near the front part and an exhaust fan 5 is arranged. The front of the dustbin 2 is provided with a reversing tee 6 through flange connection, and an air outlet of the reversing tee 6 is communicated with the lower dustbin. A bottom suction dust collection device 7 is arranged below the electric vehicle chassis 1, and the bottom suction dust collection device 7 is positioned at the right side of the middle part of the electric vehicle chassis 1. The right side of the electric vehicle chassis 1 is provided with a side suction telescopic pipe 9, the side suction telescopic pipe 9 adopts a telescopic pipe with a built-in spiral steel wire, and the front end of the side suction telescopic pipe 9 is provided with a dust collection elbow 8 with a suction port end facing downwards. The electric vehicle chassis 1 is provided with a dust collection elbow position adjusting device 10.
As shown in fig. 2, the reversing tee 6 includes a tee body 61, a reversing baffle 62 is disposed in the tee body 61, and the reversing baffle 62 is assembled with a baffle rotating shaft 63 and a baffle rotating speed reducing motor 64. The position of the reversing baffle 62 is controlled by the baffle rotation speed reducing motor 64, so that the two air inlet passages of the three-way pipe body 61 can be alternatively opened.
Referring to fig. 3, the bottom suction dust collector 7 is provided with a horizontally arranged connecting plate 71, a circular hole is formed in the middle of the connecting plate 71, the upper part of a horn-shaped dust suction nozzle 72 passes through the circular hole and is fixedly connected with the connecting plate 71, the lower end of the dust suction nozzle 72 is connected with a guide cylinder 73 through radial connecting plates uniformly distributed along the circumference, the guide cylinder 73 is a cylinder with a lower inner conical surface, a wind cylinder 74 is coaxially arranged in the guide cylinder 73, blades 75 uniformly distributed on the outer side of the wind cylinder 74 form a wind wheel, the upper end of the wind cylinder 74 is connected with a wind wheel hub 76, the upper end face of the wind wheel hub 76 is connected with a driven pulley with a transmission mechanism 77, and the driven pulley is sleeved on the upper part of the dust suction nozzle 72 through a bearing. The electric motor is characterized in that a bottom suction dust collection device lifting electric push rod 78 and a fan motor 79 are arranged on the connecting plate 71, three bottom suction dust collection device lifting electric push rods 78 are vertically arranged on the connecting plate 71, the upper ends of the three bottom suction dust collection device lifting electric push rods 78 are connected with the electric vehicle chassis 1, an output shaft of the fan motor 79 downwards penetrates through the connecting plate 71 and is provided with a driving belt wheel of the belt transmission mechanism 77 at the end part of the output shaft, and the upper port of the dust suction nozzle 72 is connected with an air inlet of the reversing three-way valve 6. The invention can install the protective net cover on the upper end of the draft tube 73, prevent the sundries from entering the fan wheel to influence the normal operation. The invention utilizes three lifting electric push rods 78 of the bottom suction dust collection device to realize lifting of the bottom suction dust collection device 7, adjusts the distance between the bottom suction dust collection device 7 and a road surface, rotates a fan cylinder 74 and blades 75 on the fan cylinder through a belt transmission mechanism 77 by a fan motor 79 to provide blowing air, gathers dust and garbage on the ground and blows the dust and garbage to the lower suction port of a horn-shaped dust collection nozzle 72, and utilizes negative pressure generated by an exhaust fan 5 to collect the dust and the garbage into a dustbin 2.
As shown in fig. 3, a guide cylinder 73 of the present invention is provided with a side-blowing door 710, the side-blowing door 710 is a part of the guide cylinder 73, and is disposed on the right side of the guide cylinder 73, and is assembled on the guide cylinder 73 through a side-blowing door rotating shaft 711 mounted on the upper end of the guide cylinder, and the side-blowing door rotating shaft 711 is connected with an output shaft of a side-blowing door driving gear motor 712 fixedly mounted on the guide cylinder 73, so as to realize opening and closing of a side-blowing port. When the side-blowing door 710 is in an open state, a part of wind in the guide cylinder 73 can blow to the inner side surface and the root of the road shoulder and rebound, so that the effective removal of garbage and dust accumulated at the root of the road shoulder is realized.
As shown in fig. 4, the dust collection elbow position adjusting device 10 has a vertical rotating shaft 101 assembled on the chassis 1 of the electric vehicle and an electric push rod rotating shaft driving mechanism 102, wherein the front part of the electric push rod rotating shaft driving mechanism 102 is provided with a rack structure and is meshed with a rotating shaft gear fixedly arranged on the vertical rotating shaft 101, and the rotation of the vertical rotating shaft 101 can be realized through the electric push rod rotating shaft driving mechanism 102. The lower part of the vertical rotating shaft 101 is hinged with a cross beam 103 through a hinge shaft arranged at the rear end of the cross beam 103, the cross beam 103 is a rectangular hollow beam provided with an inner slide, and the cross beam 103 is arranged above the side suction telescopic pipe 9. The upper part of the vertical rotating shaft 101 is provided with a beam inclination angle adjusting mechanism 104, and the beam inclination angle adjusting mechanism 104 consists of a beam inclination angle adjusting gear motor hinged on the upper part of the vertical rotating shaft 101, a screw rod directly connected with an output shaft of the beam inclination angle adjusting gear motor and a screw rod nut hinged on the middle part of the beam 103. The transverse beam 103 is provided with a telescopic tube length adjusting mechanism 105 for adjusting the length of the side suction telescopic tube 9, the telescopic tube length adjusting mechanism 105 is composed of a telescopic tube length adjusting gear motor, a telescopic tube length adjusting gear rack mechanism and an elbow clamp, the telescopic tube length adjusting gear motor is arranged at the upper end of the front portion of the transverse beam 103, a gear of the telescopic tube length adjusting gear rack mechanism is arranged on an output shaft of the telescopic tube length adjusting gear motor, a rack of the telescopic tube length adjusting gear rack mechanism is assembled in a slideway of the transverse beam 103, and the elbow clamp is fixedly connected with the front end of the rack of the telescopic tube length adjusting gear rack mechanism. The dust collection elbow position adjusting device 10 realizes the adjustment of the three-dimensional space position of the dust collection elbow 8 by utilizing the electric push rod rotating shaft driving mechanism 102, the telescopic pipe length adjusting mechanism 105 and the beam inclination angle adjusting mechanism 104 so as to meet the cleaning requirements of various different environments at the roadside. The telescopic pipe length adjusting mechanism 105 of the invention can be provided with two groups to form a two-stage telescopic adjusting mechanism so as to increase the adjusting range of the dust collection elbow 8.
As shown in fig. 1, the blowing-sucking road cleaning vehicle is characterized in that the dustbin 2 is arranged at the bottom of a cabin with a trapezoid cross section, and a belt conveyor 11 is arranged at the bottom of the cabin with the trapezoid cross section for realizing mechanized unloading of the dustbin.
As shown in fig. 1, the blowing-sucking road cleaning vehicle is provided with a garbage bin door 12 corresponding to the lower garbage bin at the rear lower part of the garbage bin 2, and a filtering bin door 13 corresponding to the upper filtering bin at the rear upper part of the garbage bin 2, so that the lower garbage bin and the upper filtering bin of the garbage bin 2 are provided with independent bin doors, and the operation and maintenance of the lower garbage bin and the upper filtering bin are convenient.
The position control of the reversing baffle 62 and the position control of the side-blowing door 710 are realized by an assembled limit sensor, which belongs to the prior art and is not described herein.
Claims (4)
1. The utility model provides a blowing-sucking type road cleaning vehicle, includes electric motor car chassis (1), characterized by: the electric vehicle chassis (1) is provided with a dustbin (2), the dustbin (2) is provided with a horizontal partition plate (3) for dividing the inside of the dustbin into a lower dustbin and an upper filter bin, the horizontal partition plate (3) is provided with an airflow circulation port, a filter (4) is assembled in the upper filter bin, an exhaust fan (5) is assembled on the dustbin (2), a reversing tee joint (6) is arranged in front of the dustbin (2), an air outlet of the reversing tee joint (6) is communicated into the lower dustbin, and the electric vehicle chassis (1) is provided with a bottom suction dust collection device (7), a side suction telescopic pipe (9) with a dust suction elbow (8) and a dust suction elbow position adjusting device (10); the reversing tee joint (6) comprises a tee pipe body (61), a reversing baffle (62) is arranged in the tee pipe body (61), and a baffle rotating shaft (63) and a baffle rotating speed reducing motor (64) are assembled on the reversing baffle (62); the bottom suction dust collection device (7) is provided with a horizontally arranged connecting plate (71), a horn-shaped dust collection nozzle (72) is connected through a circular hole on the connecting plate (71), the lower end of the dust collection nozzle (72) is coaxially connected with a guide cylinder (73) with an inner conical surface through a radial connecting plate, an air cylinder (74) is coaxially arranged in the guide cylinder (73), blades (75) are uniformly distributed on the outer side of the air cylinder (74) to form a fan wheel, the upper end of the air cylinder (74) is connected with a fan hub (76), the upper end of the fan hub (76) is connected with a driven pulley with a transmission mechanism (77), the driven pulley is assembled on the upper part of the dust collection nozzle (72) through a bearing, the upper end of the connecting plate (71) is provided with a bottom suction dust collection device lifting electric push rod (78) and a fan motor (79), the upper end of the bottom suction dust collection device lifting electric push rod (78) is connected with the electric vehicle chassis (1), the driving pulley with the transmission mechanism (77) is arranged on the outer side of the air output shaft of the fan motor (74), and the upper end of the fan hub (76) is connected with the three-way air inlet (6) through a reversing pipe (6); the dust collection elbow position adjusting device (10) is provided with a vertical rotating shaft (101) and an electric push rod rotating shaft driving mechanism (102) which are assembled on the electric vehicle chassis (1), the electric push rod rotating shaft driving mechanism (102) consists of a rotating shaft gear fixedly arranged on the vertical rotating shaft (101), a rotating shaft rack which is assembled at the front end of the rotating shaft driving electric push rod and meshed with the rotating shaft gear, the lower part of the vertical rotating shaft (101) is hinged with a cross beam (103), the upper part of the vertical rotating shaft (101) is provided with a cross beam inclination angle adjusting mechanism (104), the cross beam inclination angle adjusting mechanism (104) consists of a cross beam inclination angle adjusting and reducing motor hinged on the upper part of the vertical rotating shaft (101), a screw rod connected with an output shaft of the cross beam inclination angle adjusting and a screw rod nut hinged on the middle part of the cross beam (103), the beam (103) is provided with a telescopic tube length adjusting mechanism (105) for adjusting the length of the side suction telescopic tube (9), the telescopic tube length adjusting mechanism (105) consists of a telescopic tube length adjusting speed reducing motor, a telescopic tube length adjusting gear rack mechanism and an elbow clamp, the telescopic tube length adjusting speed reducing motor is arranged at the front end of the beam (103), a gear of the telescopic tube length adjusting gear rack mechanism is arranged on an output shaft of the telescopic tube length adjusting speed reducing motor, a rack of the telescopic tube length adjusting gear rack mechanism is assembled in the beam (103), the elbow clamp is fixedly connected to the front end of the rack of the telescopic pipe length adjusting rack and pinion mechanism.
2. The blowing-suction type road cleaning vehicle according to claim 1, characterized in that: the guide cylinder (73) is provided with a side-blowing door (710), and the side-blowing door (710) is provided with a side-blowing door rotating shaft (711) and a side-blowing door driving gear motor (712).
3. The blowing-suction type road cleaning vehicle according to claim 1, characterized in that: the dustbin (2) is arranged at the bottom of a bin with a trapezoid cross section, and a belt conveyor (11) is arranged at the bottom of the bin with the trapezoid cross section.
4. The blowing-suction type road cleaning vehicle according to claim 1, characterized in that: the rear lower part of the dustbin (2) is provided with a dustbin door (12) corresponding to the lower dustbin, and the rear upper part of the dustbin (2) is provided with a filtering bin door (13) corresponding to the upper filtering bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555870.3A CN108560465B (en) | 2018-06-01 | 2018-06-01 | Blowing-sucking road cleaning vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555870.3A CN108560465B (en) | 2018-06-01 | 2018-06-01 | Blowing-sucking road cleaning vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108560465A CN108560465A (en) | 2018-09-21 |
| CN108560465B true CN108560465B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810555870.3A Active CN108560465B (en) | 2018-06-01 | 2018-06-01 | Blowing-sucking road cleaning vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109518638A (en) * | 2018-12-22 | 2019-03-26 | 北京中科健德科技有限公司 | A kind of electric self-absorbing cleaning vehicle vehicle bottom dust exhaust apparatus |
| CN109793456B (en) * | 2019-01-31 | 2020-12-15 | 王铁霞 | Air purification equipment |
| CN109528073B (en) * | 2019-01-31 | 2020-11-27 | 王铁霞 | Factory building dust collecting equipment |
| CN109770784B (en) * | 2019-01-31 | 2020-11-17 | 王铁霞 | Plant ash handling equipment |
| CN110714432A (en) * | 2019-10-09 | 2020-01-21 | 王美平 | Formula that flows road rubbish cleaning device of cooperation municipal administration environmental protection garbage truck |
| CN111044165A (en) * | 2020-01-02 | 2020-04-21 | 梅雪竹 | Cable lifting system based on industrial informatization movable rack and gear system |
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| FR2728811A3 (en) * | 1994-12-29 | 1996-07-05 | Eliatis | Suction surface cleaning notably public paths and roads |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4062085A (en) * | 1974-10-09 | 1977-12-13 | Melford Engineering Limited | Suction cleaning apparatus |
| FR2728811A3 (en) * | 1994-12-29 | 1996-07-05 | Eliatis | Suction surface cleaning notably public paths and roads |
| CN2727238Y (en) * | 2004-08-07 | 2005-09-21 | 山东金宝集团有限公司 | Dry type pavement dust-collecting vehicle |
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