CN109356071A - A kind of sharp work sweeping machine - Google Patents
A kind of sharp work sweeping machine Download PDFInfo
- Publication number
- CN109356071A CN109356071A CN201811363334.XA CN201811363334A CN109356071A CN 109356071 A CN109356071 A CN 109356071A CN 201811363334 A CN201811363334 A CN 201811363334A CN 109356071 A CN109356071 A CN 109356071A
- Authority
- CN
- China
- Prior art keywords
- dustbin
- filtered water
- water tank
- suction nozzle
- suction
- 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
Links
- 238000010408 sweeping Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000005183 dynamical system Methods 0.000 claims abstract description 26
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 15
- 239000003921 oil Substances 0.000 claims description 16
- 230000003028 elevating effect Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 6
- 239000003595 mist Substances 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241001417527 Pempheridae Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Abstract
The invention discloses a kind of sharp work sweeping machines, including second-class chassis, hydraulic oil container, dynamical system, filtered water tank, dustbin, sweep disk and suction nozzle, hydraulic oil container is arranged between driver's cabin and dynamical system, dustbin and filtered water tank are provided separately, it is provided with suction inlet on dustbin and lower exhaust outlet is connected to suction nozzle, suction nozzle is equipped with suction tube and gas blow pipe is docked with suction inlet and lower exhaust outlet, sweeps and is equipped with high pressure water circuit system between disk and filtered water tank.The present invention in dustbin by being arranged gas flow loop, the air flow that blower is discharged is led into suction nozzle blowout all the way, to blow afloat earth's surface rubbish, suction tube is facilitated to suck, enhance clean rate, gravitational dust collection combination air circulation technology can be improved operating speed and reduce fugitive dust, operating speed can be improved simultaneously to 30km/h, substantially increase the operating speed and clean rate of sweeping machine.
Description
Technical field
The present invention relates to environmental sanitation equipment field more particularly to a kind of sharp work sweeping machines.
Background technique
Sweeping machine is the special-purpose vehicle cleaned for pavement garbage, is that a kind of collection road cleaning, garbage reclamation and transport are
The new and effective cleaning equipment of one.It is widely portable to highway, avenue, town squares and airfield pavement, city
The road-cleanings operation such as city residential quarter, park.
Sweeping machine is divided into dry-type road sweeper and wet type sweeping machine, is all made of suction nozzle combination dustbin gravitational dust collection and carries out rubbish
It cleans.For existing large size sweeping machine (gross mass >=10 ton) since blower suction is not strong enough, operating speed is usually small in 8~10km/
When or so, and body width, height and useful load again limit the selection of blower, therefore operating speed is difficult to improve always,
It is also restricted in terms of fugitive dust, oil consumption.For wet type sweeping machine, existing structure dustbin and filtered water tank are to be connected in one mostly
It rises, rubbish usually requires to lift dustbin and water tank simultaneously when toppling over operation, causes lifting energy consumption excessive, filtered water tank is multiple
Lifting, is easy leak, and maintenance difficulty is also big.And the atomizing de-dusting of existing wet type sweeping machine is ineffective, not can avoid secondary raise
Dirt.
Summary of the invention
The object of the present invention is to provide a kind of sharp work sweeping machines, to improve the operating speed of existing large-scale sweeping machine,
Energy consumption is reduced simultaneously, effectively avoids reentrainment of dust.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of sharp work sweeping machine, it is characterised in that: including second-class chassis, hydraulic oil container, dynamical system, filtered water tank,
Dustbin sweeps disk and suction nozzle, and the second-class chassis includes driver's cabin and crossbeam, and the hydraulic oil container, dynamical system, filtered water tank are logical
It crosses subframe to be successively laid in from front to back above crossbeam, the dustbin is arranged in hydraulic oil container, dynamical system and filtered water tank
Top；Described to sweep disk and suction nozzle is laid in below crossbeam, the subframe down either side swept disk and be positioned close to driver's cabin is inhaled
Middle part is arranged below subframe in mouth；The hydraulic oil container is arranged between driver's cabin and dynamical system, the dynamical system packet
Include assistant engine and blower；
The dustbin and filtered water tank are provided separately, and there are two the filtered water tanks, are separately mounted to behind subframe two sides
Side, the dustbin middle and back are placed between two filtered water tanks in narrow wide shape, lower part under being, top be then erected at filtered water tank it
On, upper side is equal with the side of filtered water tank, and the front of dustbin is lid, and lid completely closes on dynamical system.
Preferably, the air inlet of blower is provided on the dustbin and air outlet is docked with blower, and be equipped with connection suction nozzle
Suction inlet, suction tube is equipped with above suction nozzle and is connected with suction inlet, lower exhaust outlet, the lower air draft are also provided on the dustbin
Mouth is connected to the gas blow pipe on suction nozzle by tracheae, and the gas blow pipe is arranged in the just rearward of suction tube, sets above the air outlet
There is upper exhaust outlet, air-vent, the internal duct that the air-vent passes through dustbin are equipped between the upper exhaust outlet and air outlet
It is connected with lower exhaust outlet, the rear portion of the dustbin is back door, is equipped with back door and opens oil cylinder and back door locking cylinder.
Preferably, the dustbin lifts dustbin, the single-acting elevating ram using a single-acting elevating ram
It is tiltedly mounted on blower side, the cabinet exterior below the air inlet is equipped with pin shaft and connect with piston rod.
Preferably, the dynamical system, sweep disk, elevating ram, back door opening and closing oil cylinder and back door locking cylinder with PLC control
Device processed is connected, and realizes that the data communication between each controller is transmitted by CAN bus system.
Preferably, described sweep is equipped with high pressure water circuit system between disk and filtered water tank, and the high pressure water circuit system is by being arranged in
The high pressure nozzle above disk and the pressure duct being connected with filtered water tank composition are swept, when sweeping road operation, forms whole circle around disk sweeping
Around water mist.
Preferably, the combined type that the suction nozzle is arranged to left and right floating connection is inhaled, and is respectively equipped with suction tube above the suction nozzle of left and right
It is connected with gas blow pipe with dustbin.
Preferably, it there are two the suction inlet and lower exhaust outlet are all provided with, is symmetricly set at left and right sides of air inlet, and respectively
The suction tube and gas blow pipe of corresponding left and right suction nozzle are attached.
The present invention saves the space that hydraulic system occupies vehicle, increases dustbin by using closed type hydraulic system
Volume improves gravitational dust collection efficiency；By the way that gas flow loop is arranged in dustbin, by one pass of air flow of blower discharge
It is blown out to suction nozzle, to blow afloat earth's surface rubbish, suction tube is facilitated to suck, enhance clean rate, gravitational dust collection combination air circulation technology can
It improves operating speed and reduces fugitive dust.It is simultaneously that dustbin and filtered water tank is arranged apart, lifting energy consumption is reduced, filtered water tank keeps flat
Antileaking is put, the maintenance difficulty of cabinet is also reduced.High pressure nozzle is arranged sweeping in the present invention above disk, form annular water mist,
Disk surrounding is swept in covering comprehensively, effectively avoids reentrainment of dust.The present invention improves the operating speed of large-scale sweeping machine to 30km/h, most
The particulate matter diameter sucked greatly substantially increases the operating speed and clean rate of sweeping machine, is highly suitable for up to 140mm or more
The cleaning operation of expressway or expressway surface.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention.
Fig. 2 is gas circuit circulation schematic diagram.
Fig. 3 is hydraulic system principle figure of the invention.
In figure, disk, 7 suction nozzles, 8 liftings are swept in 1 second-class chassis, 2 hydraulic oil containers, 3 dynamical systems, 4 filtered water tanks, 5 dustbins, 6
Oil cylinder, 11 driver's cabins, 12 crossbeams, 31 assistant engines, 32 blowers, 51 air inlets, 52 air outlets, 53 suction inlets, 54 lower exhaust outlets,
Exhaust outlet, 56 air-vents, 71 suction tubes, 72 gas blow pipes on 55.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
As Fig. 1~3 be preferred embodiment of the invention, including second-class chassis 1, hydraulic oil container 2, dynamical system 3, filtered water tank 4,
Dustbin 5 sweeps disk 6, suction nozzle 7 and elevating ram 8,
It is 10 tons or more of large-scale chassis, including driver's cabin 11 and crossbeam 12, hydraulic oil container that second-class chassis 1, which selects gross mass,
2, dynamical system 3, filtered water tank 4 are successively laid in the crossbeam 12 of second-class chassis 1 by subframe (not shown) from front to back
Top, dustbin 5 are arranged above hydraulic oil container 2, dynamical system 3 and filtered water tank 4.It sweeps disk 6 and suction nozzle 7 is laid under crossbeam 12
Side, sweeps the subframe down either side that disk 6 is positioned close to driver's cabin 11, and middle part is arranged below subframe in suction nozzle 7, sweep disk 6 with
High pressure water circuit system (not shown) is equipped between filtered water tank 4, high pressure water circuit system sweeps the high pressure spray of 6 top of disk by being arranged in
Mouth and the pressure duct being connected with filtered water tank 4 composition.When sweeping road operation, High Pressure Spray for Dust Suppression is carried out to disk 6 is swept, is sweeping disk 6 weeks
It encloses to form whole ring around water mist, effectively prevent reentrainment of dust.
What the dustbin and filtered water tank of traditional sweeping machine were connected together, by dustbin 5 and filtered water tank 4 in the present embodiment
Be provided separately, there are two filtered water tanks 4, is separately mounted to subframe two sides back upper place, and dustbin 5 is matched with filtered water tank 4, in after
Portion is designed to down narrow wide shape, and lower part is placed between two filtered water tanks 4, and top is then erected on filtered water tank 4, upper side with
The side of filtered water tank 4 is equal, and the front of dustbin 5 is lid, and lid completely closes on dynamical system 3, protect dynamical system and every
From noise.
Hydraulic oil container 2 is arranged between driver's cabin 11 and dynamical system 3, is effectively isolated the noise of dynamical system 3, avoids making an uproar
Interference of the sound to operator.The hydraulic system of traditional sweeping machine uses belt wheel drive blower motor, and occupied space is big.This hair
Bright hydraulic system using closed type hydraulic system drive blower motor, hydraulic scheme as shown in figure 3, hydraulic pump oil inlet pipe
Directly it is connected with the oil return pipe of blower motor, working fluid carries out closed circulation in the pipeline of hydraulic system.Setting knot in this way
Structure is compact, and the chance that hydraulic system is contacted with air is few, and air is not easy the system of penetrating into, and is driven more stable.The present invention is closed because using
Formula hydraulic system, it is compact-sized, space can be saved, expands the volume of dustbin 5, improves the efficiency of gravitational dust collection.
Dynamical system 3 includes assistant engine 31 and blower 32, and the motor of 31 fan 32 of assistant engine provides power, rubbish
The air inlet 51 and air outlet 52 that blower 32 is provided on case 5 are docked with blower 32, and are equipped with the suction inlet 53 of connection suction nozzle 7, wind
The suction of machine 32 makes dustbin be in vacuum state, and rubbish is sucked suction inlet 53 through suction tube 71 from suction nozzle 7, inhaled by the negative pressure of generation
Dirt mouth 53 is arranged by air inlet 51, and in the present embodiment, suction nozzle 7 is arranged to the combined suction nozzle of left and right floating connection, and left and right is inhaled
There is suction tube 71 to be connected with dustbin 5 respectively above mouth, therefore is equipped with suction inlet 53 in 51 two sides of air inlet.On dustbin 5
It is also provided with lower exhaust outlet 54, lower exhaust outlet 54 is connected to the gas blow pipe 72 on suction nozzle 7 by tracheae, and the setting of gas blow pipe 72 is being inhaled
The just rearward of cylinder 71 forms circulation gas circuit, and gas blow pipe 72 carries out wind-force supplement to the negative pressure on 7 periphery of suction nozzle, so that pick-up performance
More preferably, while reentrainment of dust is avoided.It is equipped with upper exhaust outlet 55 above air outlet 52, is equipped between upper exhaust outlet and air outlet 52
Air-vent 56, air-vent 56 are connected by the internal duct of dustbin 5 with lower exhaust outlet 54, and air-flow branch is formed.Dustbin 5
Rear portion is back door 57, is respectively equipped with back door and opens oil cylinder and back door locking cylinder.The setting of gas blow pipe 72 and circulation gas circuit, so that
Rubbish more rapidly can be sucked dustbin 5 by suction tube 71, and the efficiency that operation is swept in suction is improved, and clean rate also greatly improves.
Dustbin 5 lifts dustbin using a single-acting elevating ram 8, and single-acting elevating ram 8 is tiltedly mounted on wind
Machine side, on the cabinet exterior of the lower section of air inlet 51 of dustbin 5, cabinet exterior is equipped with pin shaft and connect with piston rod, traditional rubbish
The elevating ram of rubbish case is often two double acting cylinders, and elevating ram is arranged in cabinet two sides, is swung with box body lifting, is held
Hydraulic cylinder failure is easily caused, and the problems such as lifting force is uneven.In the present embodiment, elevating ram 8 is single-action hydraulic cylinder, lifting
The movement in direction realized with oil pressure, and self weight when return by dustbin 5 and piston rod is withdrawn, and the inclination of elevating ram 8 is fixed
Installation, does not swing with box body lifting, and this oil cylinder and its fixed form greatly reduce the failure rate of oil cylinder, extends oil cylinder
Service life, and single cylinder lifting it is more stable, when being not in oil pressure difference cabinet tilt the phenomenon that.
Dynamical system 2, sweep disk 6, elevating ram 8, back door opening and closing oil cylinder and back door locking cylinder with PLC controller phase
Even, and by CAN bus system it realizes the communication that the data communication between each controller is transmitted, between traditional controller, uses
RS485 or RS232, communications protocol are Modebus or each manufacturing firm's customized, and the communication between controller is compatible not
Good, after CAN bus control system, each controller all meets CAN protocol, and compatibility is more preferable.
The above is only present pre-ferred embodiments, is not intended to limit the scope of the present invention, therefore
Any subtle modifications, equivalent variations and modifications to the above embodiments according to the technical essence of the invention, still fall within
Protection scope of the present invention.
Claims (7)
1. a kind of sharp work sweeping machine, it is characterised in that: including second-class chassis, hydraulic oil container, dynamical system, filtered water tank, rubbish
Rubbish case sweeps disk and suction nozzle, and the second-class chassis includes driver's cabin and crossbeam, and the hydraulic oil container, dynamical system, filtered water tank pass through
Subframe is successively laid in from front to back above crossbeam, and the dustbin is arranged on hydraulic oil container, dynamical system and filtered water tank
Side；It is described to sweep disk and suction nozzle is laid in below crossbeam, the subframe down either side swept disk and be positioned close to driver's cabin, suction nozzle
Middle part is set below subframe；The hydraulic oil container is arranged between driver's cabin and dynamical system, and the dynamical system includes
Assistant engine and blower；
The dustbin and filtered water tank are provided separately, and there are two the filtered water tanks, are separately mounted to subframe two sides back upper place, institute
It states narrow wide shape, lower part under dustbin middle and back is to be placed between two filtered water tanks, top is then erected on filtered water tank, top
Side is equal with the side of filtered water tank, and the front of dustbin is lid, and lid completely closes on dynamical system.
2. a kind of sharp work sweeping machine as described in claim 1, it is characterised in that: be provided on the dustbin blower into
Air port and air outlet are docked with blower, and are equipped with the suction inlet of connection suction nozzle, and suction tube and suction inlet phase are equipped with above the suction nozzle
Even, it is also provided with lower exhaust outlet on the dustbin, the lower exhaust outlet is connected to the gas blow pipe on suction nozzle by tracheae, described
The just rearward of suction tube is arranged in gas blow pipe, upper exhaust outlet is equipped with above the air outlet, between the upper exhaust outlet and air outlet
Equipped with air-vent, the air-vent is connected by the internal duct of dustbin with lower exhaust outlet, after the rear portion of the dustbin is
Door is equipped with back door and opens oil cylinder and back door locking cylinder.
3. a kind of sharp work sweeping machine as claimed in claim 2, it is characterised in that: the dustbin uses a single-acting
Elevating ram lifts dustbin, and the single-acting elevating ram is tiltedly mounted on blower side, the cabinet below the air inlet
Outer wall is equipped with pin shaft and connect with piston rod.
4. a kind of sharp work sweeping machine as claimed in claim 3, it is characterised in that: the dynamical system sweeps disk, lifting oil
Cylinder, back door opening and closing oil cylinder and back door locking cylinder be connected with PLC controller, and by CAN bus system realize each controller it
Between data communication transmission.
5. a kind of sharp work sweeping machine as described in claim 1, it is characterised in that: described sweep is equipped between disk and filtered water tank
High pressure water circuit system, the high pressure water circuit system is by being arranged in the high pressure nozzle swept above disk and the high-voltage tube being connected with filtered water tank
Road composition, when sweeping road operation, forms whole ring around water mist sweeping around disk.
6. a kind of sharp work sweeping machine as claimed in claim 2, it is characterised in that: the suction nozzle is arranged to left and right floating and connects
The combined type connect is inhaled, and is respectively equipped with suction tube above the suction nozzle of left and right and gas blow pipe is connected with dustbin.
7. a kind of sharp work sweeping machine as claimed in claim 6, it is characterised in that: the suction inlet and lower exhaust outlet are all provided with
There are two, it is symmetricly set at left and right sides of air inlet, and respectively correspond the suction tube of left and right suction nozzle and gas blow pipe is attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363334.XA CN109356071A (en) | 2018-11-16 | 2018-11-16 | A kind of sharp work sweeping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363334.XA CN109356071A (en) | 2018-11-16 | 2018-11-16 | A kind of sharp work sweeping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109356071A true CN109356071A (en) | 2019-02-19 |
Family
ID=65345349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811363334.XA Pending CN109356071A (en) | 2018-11-16 | 2018-11-16 | A kind of sharp work sweeping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109356071A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080147A (en) * | 2019-04-15 | 2019-08-02 | 中国重汽集团湖北华威专用汽车有限公司 | Sweeper is picked up in the differential classification suction of one kind |
| CN110205964A (en) * | 2019-07-08 | 2019-09-06 | 广东东谷通能源设备有限公司 | The circulating blower structure of ground sweeping machine |
| CN111593695A (en) * | 2020-06-08 | 2020-08-28 | 烟台海德专用汽车有限公司 | Single-fan quick operation sweeping vehicle and sweeping method |
| CN111593694A (en) * | 2020-06-08 | 2020-08-28 | 烟台海德专用汽车有限公司 | A kind of double fan rapid operation road sweeper and road sweeping method |
| CN112252251A (en) * | 2020-11-09 | 2021-01-22 | 北京环卫集团环卫装备有限公司 | Fuel cell road sweeper |
| CN114293499A (en) * | 2021-12-29 | 2022-04-08 | 长沙中联重科环境产业有限公司 | Environmental sanitation vehicle |
| CN114458635A (en) * | 2021-12-29 | 2022-05-10 | 长沙中联重科环境产业有限公司 | Sanitation vehicle's sound insulation noise reduction system, sanitation vehicle |
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| CN209162728U (en) * | 2018-11-16 | 2019-07-26 | 福建环海环保装备股份有限公司 | A kind of sharp work sweeping machine |
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| KR100858685B1 (en) * | 2008-03-21 | 2008-09-16 | 부커셰링코리아(주) | Low Noise Sweepers |
| CN101487238A (en) * | 2009-02-24 | 2009-07-22 | 郑振华 | Purely sweeping type road sweeper |
| CN101586334A (en) * | 2009-06-11 | 2009-11-25 | 航天晨光股份有限公司 | Sweeping and sucking type wet and dry road sweeper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080147A (en) * | 2019-04-15 | 2019-08-02 | 中国重汽集团湖北华威专用汽车有限公司 | Sweeper is picked up in the differential classification suction of one kind |
| CN110080147B (en) * | 2019-04-15 | 2024-05-03 | 中国重汽集团湖北华威专用汽车有限公司 | Differential pressure type classified suction cleaning vehicle |
| CN110205964A (en) * | 2019-07-08 | 2019-09-06 | 广东东谷通能源设备有限公司 | The circulating blower structure of ground sweeping machine |
| CN111593695A (en) * | 2020-06-08 | 2020-08-28 | 烟台海德专用汽车有限公司 | Single-fan quick operation sweeping vehicle and sweeping method |
| CN111593694A (en) * | 2020-06-08 | 2020-08-28 | 烟台海德专用汽车有限公司 | A kind of double fan rapid operation road sweeper and road sweeping method |
| CN112252251A (en) * | 2020-11-09 | 2021-01-22 | 北京环卫集团环卫装备有限公司 | Fuel cell road sweeper |
| CN114293499A (en) * | 2021-12-29 | 2022-04-08 | 长沙中联重科环境产业有限公司 | Environmental sanitation vehicle |
| CN114458635A (en) * | 2021-12-29 | 2022-05-10 | 长沙中联重科环境产业有限公司 | Sanitation vehicle's sound insulation noise reduction system, sanitation vehicle |
| CN114293499B (en) * | 2021-12-29 | 2023-11-03 | 长沙中联重科环境产业有限公司 | Sanitation vehicle |
| CN114458635B (en) * | 2021-12-29 | 2023-12-05 | 长沙中联重科环境产业有限公司 | Sound insulation and noise reduction system of sanitation vehicle and sanitation vehicle |
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Application publication date: 20190219 |