CN108612020B - Full-suction type dry-wet dual-purpose garbage sweeper - Google Patents
Full-suction type dry-wet dual-purpose garbage sweeper Download PDFInfo
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- CN108612020B CN108612020B CN201810774743.2A CN201810774743A CN108612020B CN 108612020 B CN108612020 B CN 108612020B CN 201810774743 A CN201810774743 A CN 201810774743A CN 108612020 B CN108612020 B CN 108612020B
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- negative pressure
- garbage
- filter cylinder
- sweeper
- classification box
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuse-Collection Vehicles (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Abstract
The invention discloses a full-suction type dry and wet dual-purpose garbage sweeper, which comprises a sweeper body, wherein the sweeper body consists of a cab and a garbage containing chamber, and a negative pressure classification box and at least one negative pressure suction pipe are arranged in the garbage containing chamber. According to the invention, the disc brush at the bottom of the vehicle head can effectively separate garbage adhered to the ground, and then the garbage is sucked into the negative pressure classification box through the negative pressure suction pipe for treatment; in addition, the garbage collected by the disc brush is sucked into the negative pressure classification box through the negative pressure suction pipe and falls into the filter cylinder, and because the filter cylinder is of a porous structure, dust in the garbage can penetrate through the holes of the filter cylinder and is treated through the steps, and the garbage which cannot pass through the holes of the filter cylinder falls into the bottom of the negative pressure classification box to be collected.
Description
Technical Field
The invention relates to the technical field of garbage cleaning, in particular to a full-suction type dry and wet garbage sweeper.
Background
Equipment such as present road rubbish motor sweeper when clearing up the work to the road, cause the condition that the dust flies upward easily, and because the dust is difficult to by rapid processing, lead to the cleaning work of motor sweeper can cause the pollution to the environment on the contrary, and present motor sweeper often can carry out water spray work to the road, thereby improve and improve ground humidity, further avoid the problem that the dust flies upward, however at the water spray in-process, it is too much often to appear the road surface water spray, and the direct problem that influences road environment. Therefore, a full-suction type dry and wet garbage sweeper is needed to solve the problems.
Disclosure of Invention
The invention aims to solve the problem that excessive water accumulation on the road surface is caused by adopting a water spraying type cleaning mode in most of sweeping vehicles in the prior art, and provides a full-suction type dry and wet garbage sweeping vehicle.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a dry wet dual-purpose rubbish motor sweeper of formula is inhaled entirely, includes cleans the automobile body, clean the automobile body and constitute by driver's cabin and two parts in rubbish collecting chamber, install negative pressure classification case and at least one negative pressure in the rubbish collecting chamber and inhale the material pipe, the negative pressure is inhaled the material pipe and is extended to the bottom of cleaning the automobile body.
Preferably, a rotating mechanism is installed at the bottom of the front section of the cab, the output end of the rotating mechanism is connected with a plurality of disc brushes, and the rotating mechanism is composed of at least one servo motor.
Preferably, the negative pressure classification box is of a hollow structure, the top of one side of the negative pressure classification box is communicated with the negative pressure material suction pipe, a hollow and porous filter cylinder is arranged in the negative pressure classification box, at least one buffer plate is arranged in the filter cylinder, the part of the negative pressure classification box, which is positioned at the lower part of the filter cylinder, is a garbage collection area, and the filter cylinder is connected with a negative pressure driving device.
Preferably, the outer walls of the upper side and the lower side of the filter cylinder are connected with deep groove ball bearings in an interference fit mode, the bottom end of the filter cylinder is rotatably connected to the inner wall of the negative pressure classification box through the deep groove ball bearings, and the top end of the filter cylinder is rotatably connected to the connecting block and the inner wall of the negative pressure classification box through the deep groove ball bearings.
Preferably, the negative pressure driving device comprises a negative pressure pump, an air inlet pipe, an air outlet pipe and an external tooth circle in interference fit connection with the outer wall of the filter cylinder, an impeller is arranged in the air inlet pipe, a first rotating shaft is in interference fit connection with the middle of the impeller, one side of the first rotating shaft is rotatably connected with the inner wall of the air inlet pipe, the other side of the first rotating shaft penetrates through the inner wall of the air inlet pipe and is in interference fit connection with a driving bevel gear, the driving bevel gear is meshed with a driven bevel gear, the driven bevel gear is fixedly connected with a gear, and the gear is meshed with the external.
Preferably, a second rotating shaft is connected to the middle of the driven bevel gear in an interference fit manner, and the second rotating shaft is connected with the gear through a flat key.
Preferably, the bottom of one side of the negative pressure classification box, which is far away from the negative pressure material suction pipe, is provided with a water tank, a vertical partition plate is arranged above the middle part of the water tank, and an exhaust cavity is formed between one side of the partition plate, which is far away from the negative pressure material suction pipe, and the inner wall of the negative pressure classification box.
Preferably, the air outlet pipe adopts a U-shaped structure, and one end, far away from the negative pressure pump, of the air outlet pipe extends into the water tank.
Preferably, at least one baffle is arranged on the inner walls of the two sides of the exhaust cavity, the baffles are obliquely arranged, and the baffles are arranged on the inner walls of the two sides of the exhaust cavity in a crossed manner.
The invention has the beneficial effects that:
1. the disc brush at the bottom of the vehicle head can effectively separate garbage adhered to the ground, and then the garbage is sucked into the negative pressure classification box for treatment through the negative pressure suction pipe;
2. in addition, the garbage collected by the disc brush is sucked into the negative pressure classification box through the negative pressure suction pipe and falls into the filter cylinder, and because the filter cylinder is of a porous structure, dust in the garbage can penetrate through the holes of the filter cylinder and is treated through the steps, and the garbage which cannot pass through the holes of the filter cylinder falls into the bottom of the negative pressure classification box to be collected;
3. the impeller is arranged in the air inlet pipe of the negative pressure pump, so that the passing air flow can effectively drive the impeller to rotate, horizontal output is facilitated to be vertically output by the impeller through the meshing of the driving bevel gear and the driven bevel gear, and the filter cylinder is further driven to rotate by the meshing of the isomorphic gear and the outer circle, so that garbage falling into the filter cylinder is fully rolled, and dust is effectively removed further.
Drawings
FIG. 1 is a schematic structural view of a full-suction dry-wet garbage sweeper provided by the invention;
FIG. 2 is a diagram of a full-suction type dry and wet garbage sweeper provided by the invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention.
In the figure: the garbage cleaning machine comprises a cleaning vehicle body 1, a garbage storage chamber 2, a cab 3, a rotating mechanism 4, a disc brush 5, a negative pressure suction pipe 6, a negative pressure classification box 7, a filter cylinder 8, a deep groove ball bearing 9, a buffer plate 10, a connecting block 11, a negative pressure pump 12, a negative pressure outlet pipe 13, a water tank 14, an exhaust cavity 15, a baffle plate 16, an external tooth circle 17, a gear 18, a driven bevel gear 19, a driving bevel gear 20, an impeller 21, an air inlet pipe 22, a liquid medium 23 and a partition plate 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, a full-suction type dry and wet dual-purpose garbage sweeper comprises a sweeper body 1, wherein the sweeper body 1 is composed of a cab 3 and a garbage accommodating chamber 2, a negative pressure classification box 7 and at least one negative pressure suction pipe 6 are installed in the garbage accommodating chamber 2, and the negative pressure suction pipe 6 extends to the bottom end of the sweeper body 1.
Referring to fig. 1, a rotating mechanism 4 is installed at the bottom of the front section of a cab 3, the output end of the rotating mechanism 4 is connected with a plurality of disc brushes 5, the rotating mechanism 4 is composed of at least one servo motor, the output shaft of the servo motor is in interference fit connection with the disc brushes 5, and the disc brushes 5 can be connected with each other through gears and belts, so that the driving by one motor can be realized.
Referring to fig. 2, the negative pressure classification box 7 is of a hollow structure, the top of one side of the negative pressure classification box 7 is communicated with the negative pressure material suction pipe 6, a hollow and porous filter cylinder 8 is arranged in the negative pressure classification box 7, at least one buffer plate 10 is arranged in the filter cylinder 8, the part of the negative pressure classification box 7, which is located at the lower part of the filter cylinder 8, is a garbage collection area, the filter cylinder 8 is connected with a negative pressure driving device, and the buffer plate 10 can effectively prolong the retention time of garbage.
Furthermore, the outer walls of the upper side and the lower side of the filter cylinder 8 are connected with deep groove ball bearings 9 in an interference fit mode, the bottom end of the filter cylinder 8 is rotatably connected to the inner wall of the negative pressure classification box 7 through the deep groove ball bearings 9, the top end of the filter cylinder 8 is rotatably connected to the connecting block 11 and the inner wall of the negative pressure classification box 7 through the deep groove ball bearings 9, and the filter cylinder 8 can only rotate due to the arrangement of the deep groove ball bearings 9.
Referring to fig. 2 and 3, the negative pressure driving device includes a negative pressure pump 12, an air inlet pipe 22 and an air outlet pipe 13, an external gear 17 is connected to the outer wall of the filter cartridge 8 in an interference fit manner, an impeller 21 is arranged in the air inlet pipe 22, a first rotating shaft is connected to the middle of the impeller 21 in an interference fit manner, one side of the first rotating shaft is rotatably connected to the inner wall of the air inlet pipe 22, the other side of the first rotating shaft penetrates through the inner wall of the air inlet pipe 22 and is connected to a driving bevel gear 20 in an interference fit manner, the driving bevel gear 20 is engaged with a driven bevel gear 19, the driven bevel gear 19 is fixedly.
Furthermore, a second rotating shaft is connected to the middle of the driven bevel gear 19 in an interference fit mode and connected with the gear 18 through a flat key.
Referring to fig. 2, a water tank 14 is installed at the bottom of one side of the negative pressure classification box 7 far away from the negative pressure material suction pipe 6, a vertical partition plate 24 is arranged above the middle of the water tank 14, and an exhaust cavity 15 is formed between one side of the partition plate 24 far away from the negative pressure material suction pipe 6 and the inner wall of the negative pressure classification box 7.
More preferably, the outlet pipe 13 is of a U-shaped structure, and one end of the outlet pipe 13 far away from the negative pressure pump 12 extends into the water tank 14, so that dust in the gas can effectively contact with the liquid medium 23.
Furthermore, at least one baffle 16 is arranged on the inner walls of two sides of the exhaust cavity 15, the baffles 16 are obliquely arranged, the baffles 16 are arranged on the inner walls of two sides of the exhaust cavity 15 in a crossed mode, the exhaust cavity 15 can process further tail end gas, and the discharge of residual dust is reduced.
When the automobile is used, the automobile body cleaning device controls the related driving work of the cleaning automobile body 1 by sitting in a cab, wherein the negative pressure pump 12 and the servo motor are connected with an automobile bus to facilitate control, the servo motor is started during driving, an output shaft of the servo motor further drives the disc brush 5 to rotate to clean the ground, then the negative pressure pump 12 is started, airflow enters through the bottom end of the cleaning automobile body 1 after the negative pressure pump 12 is started, finally axially enters the negative pressure pump 12 through the negative pressure suction pipe 6, the negative pressure classification box 7, the filter cartridge 8 and the air inlet pipe 22 and is discharged through the air outlet pipe 13, the air outlet pipe 13 is positioned in the water tank 14, so that the air and the liquid medium 23 are fully mixed, dust in the air is absorbed into the water, the dust removal effect is achieved, and the dust-removed air is discharged to the outside of the cleaning automobile body.
Wherein, a plurality of baffles are arranged in the exhaust cavity 15, which can effectively obstruct and further adsorb the moisture of the gas and the residual dirt.
In addition, the garbage collected by the disc brush 5 is sucked into the negative pressure sorting box 7 through the negative pressure suction pipe 6 and falls into the filter cylinder 8, and because the filter cylinder 8 is of a porous structure, the dust in the garbage can penetrate through the holes of the filter cylinder 8 and is treated through the steps, and the garbage which cannot pass through the holes of the filter cylinder 8 falls into the bottom of the negative pressure sorting box 7.
Further, an impeller 21 is arranged in an air inlet pipe 22 of the negative pressure pump 12, and the passing air flow can effectively drive the impeller 21 to rotate, so that the impeller 21 can horizontally output conveniently and vertically output through the meshing of a driving bevel gear 20 and a driven bevel gear 19, and further the meshing of the isomorphic gear 18 and the external tooth circle 17 drives the filter cartridge 8 to rotate, so that garbage falling into the filter cartridge 8 can be sufficiently rolled, and dust can be effectively removed further.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A full-suction type dry and wet dual-purpose garbage sweeper comprises a sweeper body (1), wherein the sweeper body (1) consists of a cab (3) and a garbage containing chamber (2), and is characterized in that a negative pressure classification box (7) and at least one negative pressure suction pipe (6) are installed in the garbage containing chamber (2), and the negative pressure suction pipe (6) extends to the bottom end of the sweeper body (1);
a rotating mechanism (4) is installed at the bottom of the front section of the cab (3), the output end of the rotating mechanism (4) is connected with a plurality of disc brushes (5), and the rotating mechanism (4) is composed of at least one servo motor;
the vacuum sorting box (7) is of a hollow structure, the top of one side of the vacuum sorting box (7) is communicated with the vacuum material suction pipe (6), a hollow and porous filter cylinder (8) is arranged in the vacuum sorting box (7), at least one buffer plate (10) is arranged in the filter cylinder (8), the part of the vacuum sorting box (7) positioned at the lower part of the filter cylinder (8) is a garbage collecting area, and the filter cylinder (8) is connected with a vacuum driving device;
deep groove ball bearings (9) are connected to the outer walls of the upper side and the lower side of the filter cylinder (8) in an interference fit mode, the bottom end of the filter cylinder (8) is rotatably connected to the inner wall of the negative pressure classification box (7) through the deep groove ball bearings (9), and the top end of the filter cylinder (8) is rotatably connected to the connecting block (11) and the inner wall of the negative pressure classification box (7) through the deep groove ball bearings (9);
negative pressure drive arrangement includes negative pressure pump (12), intake pipe (22) and outlet duct (13), strain on the outer wall of section of thick bamboo (8) interference fit hookup have external tooth circle (17), be equipped with impeller (21) in intake pipe (22), the middle part interference fit hookup of impeller (21) has first pivot, one side of first pivot is rotated and is connected on the inner wall of intake pipe (22), the opposite side of first pivot runs through the inner wall of intake pipe (22) and interference fit hookup drive bevel gear (20), drive bevel gear (20) meshing has driven bevel gear (19), driven bevel gear (19) fixedly connected with gear (18), gear (18) and external tooth circle (17) meshing.
2. The full-suction type dry and wet garbage sweeper as claimed in claim 1, wherein a second rotating shaft is coupled to the middle of the driven bevel gear (19) in an interference fit manner, and the second rotating shaft is connected with the gear (18) through a flat key.
3. The full-suction type dry and wet garbage sweeper is characterized in that a water tank (14) is mounted at the bottom of one side, away from a negative pressure suction pipe (6), of a negative pressure classification box (7), a vertical partition plate (24) is arranged above the middle of the water tank (14), and an exhaust cavity (15) is formed between one side, away from the negative pressure suction pipe (6), of the partition plate (24) and the inner wall of the negative pressure classification box (7).
4. A full suction type dry and wet garbage sweeper according to claim 3, wherein the air outlet pipe (13) is of a U-shaped structure, and one end of the air outlet pipe (13) far away from the negative pressure pump (12) extends into the water tank (14).
5. The full suction type dry and wet garbage sweeper according to claim 3, wherein at least one baffle (16) is arranged on the inner walls of two sides of the exhaust cavity (15), the baffles (16) are arranged obliquely, and the baffles (16) are arranged on the inner walls of two sides of the exhaust cavity (15) in a crossed manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810774743.2A CN108612020B (en) | 2018-07-16 | 2018-07-16 | Full-suction type dry-wet dual-purpose garbage sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810774743.2A CN108612020B (en) | 2018-07-16 | 2018-07-16 | Full-suction type dry-wet dual-purpose garbage sweeper |
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| Publication Number | Publication Date |
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| CN108612020A CN108612020A (en) | 2018-10-02 |
| CN108612020B true CN108612020B (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810774743.2A Active CN108612020B (en) | 2018-07-16 | 2018-07-16 | Full-suction type dry-wet dual-purpose garbage sweeper |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113520208B (en) * | 2020-04-13 | 2022-10-21 | 添可智能科技有限公司 | Dust collecting barrel and cleaning equipment |
| CN112281731A (en) * | 2020-11-03 | 2021-01-29 | 郑大英 | Clean integrative machineshop car that washes of municipal administration road surface |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2743420Y (en) * | 2004-12-07 | 2005-11-30 | 焦继亭 | Air flow type high speed scavenging car |
| CN101074555A (en) * | 2006-05-20 | 2007-11-21 | 张珉 | Road-sweeping loory |
| CN102086632A (en) * | 2008-11-02 | 2011-06-08 | 张珉 | Multi-functional road sweeper |
| CN204690653U (en) * | 2015-05-27 | 2015-10-07 | 苏州科锐恒机械科技有限公司 | A kind of Wet-dry hand propelled pavement cleaning vehicle |
| CN204825744U (en) * | 2015-05-22 | 2015-12-02 | 湖北合加环境设备有限公司 | Novel wet or dry sweeping machine |
| CN205084553U (en) * | 2015-10-19 | 2016-03-16 | 福建龙马环卫装备股份有限公司 | Filter unit for vacuum sweeper |
| CN106368149A (en) * | 2016-11-02 | 2017-02-01 | 天津福威科技发展有限公司 | Leaf and rubbish sweeping vehicle |
-
2018
- 2018-07-16 CN CN201810774743.2A patent/CN108612020B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2743420Y (en) * | 2004-12-07 | 2005-11-30 | 焦继亭 | Air flow type high speed scavenging car |
| CN101074555A (en) * | 2006-05-20 | 2007-11-21 | 张珉 | Road-sweeping loory |
| CN102086632A (en) * | 2008-11-02 | 2011-06-08 | 张珉 | Multi-functional road sweeper |
| CN204825744U (en) * | 2015-05-22 | 2015-12-02 | 湖北合加环境设备有限公司 | Novel wet or dry sweeping machine |
| CN204690653U (en) * | 2015-05-27 | 2015-10-07 | 苏州科锐恒机械科技有限公司 | A kind of Wet-dry hand propelled pavement cleaning vehicle |
| CN205084553U (en) * | 2015-10-19 | 2016-03-16 | 福建龙马环卫装备股份有限公司 | Filter unit for vacuum sweeper |
| CN106368149A (en) * | 2016-11-02 | 2017-02-01 | 天津福威科技发展有限公司 | Leaf and rubbish sweeping vehicle |
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| CN108612020A (en) | 2018-10-02 |
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Effective date of registration: 20200903 Address after: 221200 south side of Xuzhou Dingneng concrete products factory, west of suipi Road, Shanxi village, Suining County, Xuzhou City, Jiangsu Province Applicant after: Jiangsu dingang Building Materials Industry Co., Ltd Address before: 242000 Xuancheng, Anhui province Ningguo city river Lei Xi office, Jinghong village, middle and lower Jingshan formation No. 55 Applicant before: Hu Min |
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