JP2004324186A - Dust recovery device for air circulating type cleaning vehicle - Google Patents

Dust recovery device for air circulating type cleaning vehicle Download PDF

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Publication number
JP2004324186A
JP2004324186A JP2003119231A JP2003119231A JP2004324186A JP 2004324186 A JP2004324186 A JP 2004324186A JP 2003119231 A JP2003119231 A JP 2003119231A JP 2003119231 A JP2003119231 A JP 2003119231A JP 2004324186 A JP2004324186 A JP 2004324186A
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JP
Japan
Prior art keywords
suction
pickup head
dust
type cleaning
chamber
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
Application number
JP2003119231A
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Japanese (ja)
Inventor
Toshinori Hiramatsu
利教 平松
Haruyuki Kato
治之 加藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Howa Machinery Ltd
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Howa Machinery Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Howa Machinery Ltd filed Critical Howa Machinery Ltd
Priority to JP2003119231A priority Critical patent/JP2004324186A/en
Publication of JP2004324186A publication Critical patent/JP2004324186A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust recovery device for an air circulating type cleaning vehicle capable of recovering dust into a hopper through air flow conveyance by circulating air flow even in structure with many gaps in a road surface such as water permeable pavement. <P>SOLUTION: A suction chamber 17 of a pickup head 10 is partitioned into two suction chambers 17a, 17b in a vehicle width direction by a partition member 19, and suction ducts 9a, 9b are provided corresponding to the respective suction chambers 17a, 17b. The moving distance of dust conveyed by air flow toward the respective suction ducts 9a, 9b is thereby shortened. Consequently, even in the structure with many gaps D in the road surface F such as the water permeable pavement, the dust reaches the suction ducts 9a, 9b through air flow conveyance by circulating air flow. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、空気循環式清掃車の塵埃回収装置に関する。
【0002】
【従来の技術】
従来、特許文献1〜3に記載のように空気循環式清掃車の塵埃回収装置は、車体下部に配置された車幅方向に長いピックアップヘッドと、車体上に搭載されたブロアとホッパーとを圧送ダクト、吸引ダクトによって連結したものである。そして、ブロアの駆動によりホッパー内の空気が圧送ダクト、ピックアップヘッド、吸引ダクト、ホッパーと循環する循環空気流となり、その循環空気流による気流搬送によって路面上の塵埃がホッパーに回収されるようになっている。
【0003】
また、特許文献2には、上記ピックアップヘッド内に公転運動する線材が設置されている。その線材により、透水性舗装の空隙部に付着堆積した塵埃を掘り起こして遊離させ、その塵埃が循環空気流による気流搬送によってホッパーに回収されるようになっている。特許文献3には、上記ピックアップヘッド内の上室(プッシャー室)を左室と右室に仕切る仕切り状態と仕切らない状態とにする上室仕切部材が設けられ、前記左室側に圧送ダクトと吸引ダクトとが配設されている。このことから、上室仕切部材により上室を仕切り状態とすると、路肩側の塵埃のみが循環空気流による気流搬送によってホッパーに回収されるようになっている。また、上室仕切部材により上室を仕切らない状態とすることで、路面の全幅にある塵埃が循環空気流による気流搬送によってホッパーに回収されるようになっている。
【0004】
【特許文献1】
特公平7−6172号公報
【特許文献2】
特開平6−81325号公報
【特許文献3】
特開2001−149876号公報
【0005】
【発明が解決しようとする課題】
上記した各ピックアップヘッドにはゴム製の前フラップ、後フラップ及びダートシューが取り付けてあることで、循環空気流がピックアップヘッド内から外部に洩れないようにしてある。ところが、特許文献2に記載される透水性舗装のように路面に隙間が多い構造となると、循環空気流が路面の隙間からピックアップヘッドの外部に洩れてしまい、循環空気流による気流搬送の能率が低下する。このことから、透水性舗装の路面上及び空隙部の塵埃を効率良くホッパーに回収できなかった。特に、特許文献1,2のように、ピックアップヘッドの車幅方向両端に圧送ダクトと吸引ダクトとが連結された構造であると、両ダクト間の距離が長く、圧送ダクト側にある塵埃を吸引ダクトに到達させるまでに空気洩れが多くなって気流搬送がうまく行われず、路面上に塵埃を残すおそれがあった。
【0006】
また、特許文献3のように、左室(路肩寄り)側に圧送ダクトと吸引ダクトとが配設された構造であると、上室仕切部材により上室を仕切らない状態の場合には、特許文献1,2と同様に循環空気流による気流搬送の能率の低下により、吸引ダクトから離れた塵埃(中央分離帯側の塵埃)を吸引ダクトに到達させることができず、路面上に塵埃を残すおそれがあった。そこで、本発明の課題は、透水性舗装のように路面に隙間が多い構造であっても、循環空気流による気流搬送によって塵埃をホッパーに回収できる空気循環式清掃車の塵埃回収装置を提供することにある。
【0007】
【課題を解決するための手段】
上記課題解決のため、本願では、車幅方向に延びるピックアップヘッド内を仕切り板で上側のプッシャー室と下側のサクション室とに仕切り、その仕切り板とピックアップヘッド内に設けた風向板との間にピックアップヘッドの全幅にわたって吹出しノズルを形成し、プッシャー室には一端がブロアに連結された圧送ダクトの他端を連通させ、サクション室には一端がホッパに開口された吸引ダクトの他端を連通させて成る空気循環式清掃車の塵埃回収装置において、ピックアップヘッドの車幅方向中間に、前記サクション室を車幅方向に複数のサクション室に仕切る仕切り部材を設け、前記複数のサクション室に対応して夫々吸引ダクトを設けたことを特徴とする。
【0008】
具体的には仕切り部材が1つの場合ではサクション室は2つに区画され、吸引ダクトはこれらの各サクション室に対応してピックアップヘッドの車幅方向両端に配置される。また、仕切り部材は仕切り板の下面に取り付けられ、下端が路面に接触するゴム製のフラップになっている。
【0009】
【発明の実施の形態】
実施の形態について図面を参照して説明する。図1〜2において、空気循環式清掃車1の前後輪2,3間には、路面F上の塵埃を車幅中央方向に掃き寄せるガッタブルーム4と、そのガッタブルーム4により掃き寄せられた塵埃を路面F上から回収する塵埃回収装置5が設置されている。塵埃回収装置5は、車体1a下部に配置されたピックアップヘッド10と、車体1a上に搭載されたブロア6とホッパー7とを圧送ダクト8、吸引ダクト9a,9bによって連結したものである。ピックアップヘッド10は、図示しない昇降装置によって路面接地位置Aと路面離間位置Bとに昇降可能となっている。ピックアップヘッド10について説明する。ピックアップヘッド10は、図2〜3に示すように、左右側板11,12間に長手方向が車幅と略一致している上板13が溶着され、その上板13の下方位置と後方位置に仕切り板14と風向板15とが左右側板11,12間にわたって夫々取り付けられている。前記仕切り板14によってピックアップヘッド10の車幅方向の全幅にわたって上側のプッシャー室16と下側のサクション室17とに仕切られている。仕切り板14の後端部と風向板15との間には、ピックアップヘッド10の全幅にわたって吹出しノズル18が形成されている。また、仕切り板14下面の車幅方向中間位置には、サクション室17をその長手方向(車幅方向)に左右2つのサクション室17a,17bに仕切る仕切り部材19がボルト20により取り付けられている。仕切り部材19は、図4に示すブラケット19aとその下端に取り付けられるゴム製のフラップ19bとから成る。ゴム製フラップ19bの下端はピックアップヘッド10が接地したときに路面Fに接触する。
【0010】
上記ピックアップヘッド10の車幅方向両端には、夫々一端がホッパー7に開口された吸引ダクト9a,9bの各他端が上板13を貫通し、仕切り板14で仕切られたサクション室17a,17bに夫々連通するように配置されている。ホッパー7はブロア6の空気吸引側に連通され、ホッパー7を介して吸引ダクト9a,9bに吸引気流が作用するようになっている。吸引ダクト9a,9bの間には、一端がブロア6の空気吹出口に連結した圧送ダクト8の他端がプッシャー室16に連通するように配置されている。ピックアップヘッド10の左右側板11,12にはダートシュー21、仕切り板14にはゴム製の前フラップ22、風向板15にはゴム製の後フラップ23が夫々取り付けられている。このことから、路面接地位置Aにあるピックアップヘッド10の内側空間は略密閉状態となる。ブロア6の駆動によりブロア6の空気吹出口から送り出された空気流は、圧送ダクト8、プッシャー室16、吹出しノズル18を経て各サクション室17a,17bに流れ、路面F上に作用して塵埃を掃き上げて各吸引ダクト9a,9bからホッパー7へと吸引されて塵埃をホッパー7に回収して再びブロア6に吸い込まれて循環するようになっている。尚、本実施形態では、仕切り部材19をピックアップヘッド10の車幅方向中間位置に設けたが、吸引ダクト9a,9bの間であればどの位置であっても良い。
【0011】
上記のように、仕切り板14に設けた仕切り部材19でピックアップヘッド10のサクション室17を車幅方向で2つのサクション室17a,17bに仕切り、各サクション室17a,17bに対応して吸引ダクト9a,9bをピックアップヘッド10に設けたことで、吹出しノズル18から路面Fに向けて噴出される循環空気流は各サクション室17a,17bに振り分けられ、各サクション室17a,17b内において路面F上及び空隙Dの塵埃を対応する吸引ダクト9a,9bに向けて気流搬送させることになる。よって、塵埃が車幅方向に比較的短い移動で吸引ダクト9a,9bに到達するために、透水性舗装のような路面Fの隙間Dから循環空気流がピックアップヘッド10の外部に洩れるような場合であっても、その洩れは小さくなり効率良く塵埃をホッパー7に回収することができる。また、ピックアップヘッド10の車幅方向両端に各吸引ダクト9a,9bを配置したことで、中央分離帯側の塵埃や路肩側の塵埃が各吸引ダクト9a,9bに近づくことになり、透水性舗装のような路面Fの中央分離帯側の塵埃や路肩側の塵埃を確実にホッパー7に回収することができる。
【0012】
【発明の効果】
以上のように本願では、仕切り部材でピックアップヘッドのサクション室を車幅方向に複数のサクション室に仕切り、各サクション室に対応した吸引ダクトを設けたことで、各サクション室内において気流搬送される塵埃の移動距離が短くなることから、路面が透水性舗装のような隙間の多い構造であっても、循環空気流による気流搬送によって塵埃を確実に吸引ダクトに到達させることができる。
【図面の簡単な説明】
【図1】本発明の塵埃回収装置を備えた空気循環式清掃車である。
【図2】図1のII−II線断面図である。
【図3】図2のIII−III線拡大断面図である。
【図4】仕切り部材のブラケットを示す斜視図である。
【符号の説明】
1 空気循環式清掃車
5 塵埃回収装置
6 ブロア
7 ホッパー
8 圧送ダクト
9 吸引ダクト
10 ピックアップヘッド
14 仕切り板
15 風向板
16 プッシャー室
17 サクション室
18 吹出しノズル
19 仕切り部材
19b フラップ
F 路面
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a dust collection device for an air circulation type cleaning car.
[0002]
[Prior art]
Conventionally, as described in Patent Documents 1 to 3, a dust collection device of an air circulation type cleaning car has a pickup head disposed in a lower part of a vehicle body, which is long in a vehicle width direction, and a blower and a hopper mounted on the vehicle body under pressure. They are connected by a duct and a suction duct. By driving the blower, the air in the hopper becomes a circulating air flow that circulates through the pressure feeding duct, the pickup head, the suction duct, and the hopper, and the dust on the road surface is collected by the hopper by the air current transport by the circulating air flow. ing.
[0003]
Further, in Patent Literature 2, a wire that revolves around the pickup head is provided. The wire material digs up and removes dust adhering to and accumulating in the voids of the permeable pavement, and the dust is collected in the hopper by airflow transport using a circulating airflow. Patent Literature 3 discloses an upper chamber partitioning member that partitions an upper chamber (pusher chamber) in the pickup head into a left chamber and a right chamber and a non-partition state. A suction duct is provided. For this reason, when the upper chamber is partitioned by the upper chamber partitioning member, only dust on the road shoulder side is collected in the hopper by airflow transport by the circulating airflow. In addition, since the upper chamber is not partitioned by the upper chamber partition member, dust over the entire width of the road surface is collected in the hopper by airflow transport using a circulating airflow.
[0004]
[Patent Document 1]
Japanese Patent Publication No. 7-6172 [Patent Document 2]
JP-A-6-81325 [Patent Document 3]
JP-A-2001-149876 [0005]
[Problems to be solved by the invention]
A rubber front flap, rear flap and dirt shoe are attached to each of the above-mentioned pickup heads, so that the circulating air flow does not leak from the inside of the pickup head to the outside. However, when the structure has a large gap on the road surface, such as the permeable pavement described in Patent Document 2, the circulating air flow leaks to the outside of the pickup head from the gap on the road surface, and the efficiency of airflow conveyance by the circulating air flow is reduced. descend. For this reason, dust on the road surface of the permeable pavement and in the voids could not be efficiently collected in the hopper. In particular, if the pressure feeding duct and the suction duct are connected to both ends in the vehicle width direction of the pickup head as in Patent Documents 1 and 2, the distance between the two ducts is long, and the dust on the pressure feeding duct side is sucked. There is a risk that air leakage will increase before reaching the duct and airflow will not be conveyed properly, leaving dust on the road surface.
[0006]
Further, as in Patent Literature 3, if the pressure supply duct and the suction duct are arranged on the left chamber (near the road shoulder) side, if the upper chamber is not partitioned by the upper chamber partition member, a patent is issued. As in Documents 1 and 2, the efficiency of airflow conveyance due to the circulating air flow is reduced, so that dust separated from the suction duct (dust on the median separation side) cannot reach the suction duct, leaving dust on the road surface. There was a fear. Therefore, an object of the present invention is to provide a dust collection device for an air circulation type cleaning vehicle that can collect dust in a hopper by airflow conveyance by a circulating airflow even in a structure having many gaps on a road surface such as permeable pavement. It is in.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the present application, the inside of the pickup head extending in the vehicle width direction is partitioned by a partition plate into an upper pusher chamber and a lower suction chamber, and a space between the partition plate and a wind direction plate provided in the pickup head is provided. A blow nozzle is formed over the entire width of the pickup head, the pusher chamber is connected to the other end of the pressure feed duct connected to the blower at one end, and the suction chamber is connected to the other end of a suction duct open at one end to the hopper. In the dust collection device for an air circulation type cleaning vehicle, a partition member is provided at the middle of the pickup head in the vehicle width direction to partition the suction chamber into a plurality of suction chambers in the vehicle width direction, and corresponds to the plurality of suction chambers. And a suction duct is provided.
[0008]
Specifically, when there is one partition member, the suction chamber is divided into two, and the suction ducts are arranged at both ends in the vehicle width direction of the pickup head corresponding to each of the suction chambers. The partition member is attached to the lower surface of the partition plate, and has a rubber flap whose lower end contacts the road surface.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments will be described with reference to the drawings. 1 and 2, between a front wheel 2 and a rear wheel 3 of an air circulation type cleaning vehicle 1, a gutter room 4 for sweeping dust on a road surface F in a vehicle width center direction, and a dust swept by the gutter room 4. Collection device 5 that collects dust from the road surface F is installed. The dust collection device 5 is configured by connecting a pickup head 10 disposed below the vehicle body 1a, a blower 6 mounted on the vehicle body 1a, and a hopper 7 by a pressure feeding duct 8, and suction ducts 9a and 9b. The pickup head 10 can be moved up and down between a road surface contact position A and a road surface separation position B by a lifting device (not shown). The pickup head 10 will be described. As shown in FIGS. 2 and 3, the pickup head 10 has an upper plate 13 whose longitudinal direction is substantially equal to the vehicle width welded between the left and right side plates 11 and 12, and is located below and behind the upper plate 13. A partition plate 14 and a wind direction plate 15 are mounted over the left and right side plates 11 and 12 respectively. The partition plate 14 is partitioned into an upper pusher chamber 16 and a lower suction chamber 17 over the entire width of the pickup head 10 in the vehicle width direction. A blowing nozzle 18 is formed between the rear end of the partition plate 14 and the wind direction plate 15 over the entire width of the pickup head 10. Further, a partition member 19 that partitions the suction chamber 17 into two left and right suction chambers 17a and 17b in the longitudinal direction (vehicle width direction) of the suction chamber 17 is attached to the lower surface of the partition plate 14 by bolts 20 at an intermediate position in the vehicle width direction. The partition member 19 includes a bracket 19a shown in FIG. 4 and a rubber flap 19b attached to a lower end thereof. The lower end of the rubber flap 19b contacts the road surface F when the pickup head 10 comes in contact with the ground.
[0010]
At both ends in the vehicle width direction of the pickup head 10, suction ducts 9 a and 9 b each having one end opened to the hopper 7, the other end penetrating through the upper plate 13, and a suction chamber 17 a, 17 b partitioned by a partition plate 14. Are arranged to communicate with each other. The hopper 7 is communicated with the air suction side of the blower 6, and the suction airflow acts on the suction ducts 9 a and 9 b via the hopper 7. Between the suction ducts 9 a and 9 b, one end of the pressure feeding duct 8 having one end connected to the air outlet of the blower 6 is arranged so as to communicate with the pusher chamber 16. A dirt shoe 21 is mounted on the left and right side plates 11 and 12 of the pickup head 10, a rubber front flap 22 is mounted on the partition plate 14, and a rubber rear flap 23 is mounted on the wind direction plate 15, respectively. From this, the space inside the pickup head 10 at the road surface grounding position A is substantially closed. The air flow sent out from the air outlet of the blower 6 by the drive of the blower 6 flows through the pressure feeding duct 8, the pusher chamber 16, and the blowing nozzle 18 to each suction chamber 17a, 17b, and acts on the road surface F to remove dust. The dust is swept up and sucked from the suction ducts 9a and 9b into the hopper 7, and the dust is collected in the hopper 7, and is sucked into the blower 6 again to circulate. In the present embodiment, the partition member 19 is provided at an intermediate position of the pickup head 10 in the vehicle width direction, but may be provided at any position between the suction ducts 9a and 9b.
[0011]
As described above, the suction chamber 17 of the pickup head 10 is partitioned into two suction chambers 17a, 17b in the vehicle width direction by the partition member 19 provided on the partition plate 14, and the suction duct 9a is provided corresponding to each suction chamber 17a, 17b. , 9b provided in the pickup head 10, the circulating air flow jetted from the blowing nozzle 18 toward the road surface F is distributed to the respective suction chambers 17a, 17b, and on the road surface F in the respective suction chambers 17a, 17b. The dust in the gap D is transported by airflow toward the corresponding suction ducts 9a and 9b. Therefore, when the dust reaches the suction ducts 9a and 9b in a relatively short movement in the vehicle width direction, the circulating air flow leaks out of the pickup head 10 from the gap D of the road surface F such as permeable pavement. However, the leakage is reduced and the dust can be efficiently collected in the hopper 7. In addition, since the suction ducts 9a and 9b are arranged at both ends in the vehicle width direction of the pickup head 10, dust on the median strip side and dust on the road shoulder side come closer to the suction ducts 9a and 9b, so that the water permeable pavement is provided. The dust on the median strip side and the dust on the road shoulder side of the road surface F can be reliably collected in the hopper 7.
[0012]
【The invention's effect】
As described above, in the present application, the suction chamber of the pickup head is divided into a plurality of suction chambers in the vehicle width direction by the partition member, and the suction ducts corresponding to the respective suction chambers are provided, so that the dust conveyed by the airflow in each suction chamber is provided. Therefore, even if the road surface has a structure with many gaps such as permeable pavement, the dust can reliably reach the suction duct by the airflow conveyance by the circulating air flow.
[Brief description of the drawings]
FIG. 1 is an air circulation type cleaning vehicle provided with a dust collection device of the present invention.
FIG. 2 is a sectional view taken along line II-II of FIG.
FIG. 3 is an enlarged sectional view taken along line III-III of FIG. 2;
FIG. 4 is a perspective view showing a bracket of a partition member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air circulation type cleaning car 5 Dust collection device 6 Blower 7 Hopper 8 Pressure duct 9 Suction duct 10 Pickup head 14 Partition plate 15 Wind direction plate 16 Pusher room 17 Suction chamber 18 Blowout nozzle 19 Partition member 19b Flap F Road surface

Claims (3)

車幅方向に延びるピックアップヘッド内を仕切り板で上側のプッシャー室と下側のサクション室とに仕切り、その仕切り板とピックアップヘッド内に設けた風向板との間にピックアップヘッドの全幅にわたって吹出しノズルを形成し、プッシャー室には一端がブロアに連結された圧送ダクトの他端を連通させ、サクション室には一端がホッパに開口された吸引ダクトの他端を連通させて成る空気循環式清掃車の塵埃回収装置において、ピックアップヘッドの車幅方向中間に、前記サクション室を車幅方向に複数のサクション室に仕切る仕切り部材を設け、前記複数のサクション室に対応して夫々吸引ダクトを設けたことを特徴とする空気循環式清掃車の塵埃回収装置。The inside of the pickup head extending in the vehicle width direction is partitioned by a partition plate into an upper pusher chamber and a lower suction chamber, and a blowing nozzle is provided between the partition plate and a wind direction plate provided in the pickup head over the entire width of the pickup head. The air circulation type cleaning vehicle is formed by connecting the other end of the pressure feed duct, one end of which is connected to the blower, to the pusher chamber, and the other end of the suction duct, one end of which is open to the hopper, to the suction chamber. In the dust collection device, a partition member that partitions the suction chamber into a plurality of suction chambers in the vehicle width direction is provided in the middle of the pickup head in the vehicle width direction, and suction ducts are provided corresponding to the plurality of suction chambers. Dust collection device for air circulation type cleaning vehicles. 吸引ダクトは、ピックアップヘッドの車幅方向両端に配置されることを特徴とする請求項1記載の空気循環式清掃車の塵埃回収装置。2. The dust collection device for an air circulation type cleaning car according to claim 1, wherein the suction ducts are arranged at both ends in the vehicle width direction of the pickup head. 仕切り部材は仕切り板の下面に取り付けられ、下端が路面に接触するゴム製のフラップとなっていることを特徴とする請求項1または2記載の空気循環式清掃車の塵埃回収装置。3. The dust collection device for an air circulation type cleaning vehicle according to claim 1, wherein the partition member is attached to a lower surface of the partition plate, and a lower end is a rubber flap contacting a road surface.
JP2003119231A 2003-04-24 2003-04-24 Dust recovery device for air circulating type cleaning vehicle Pending JP2004324186A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1017225A3 (en) * 2005-07-15 2008-05-06 Heijmans Infrastructuur Bv METHOD AND COMPOSITION FOR EXTRACTING FINE SUBSTANCE.
CN102286951A (en) * 2011-08-30 2011-12-21 昆明理工大学 Method for automatically collecting road garbage by wind power
CN103410112A (en) * 2013-08-13 2013-11-27 中联重科股份有限公司 Cleaning suction nozzle and cleaning vehicle
CN104389286A (en) * 2014-12-10 2015-03-04 烟台海德专用汽车有限公司 Wet dust suppressor for use at circulating air outlet of road sweeping equipment
CN106702934A (en) * 2016-12-28 2017-05-24 中联重科股份有限公司 Cleaning suction nozzle and road cleaning vehicle
CN111485522A (en) * 2019-01-25 2020-08-04 郑州宇通重工有限公司 Gas-liquid two-phase washing suction nozzle and sanitation vehicle

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1017225A3 (en) * 2005-07-15 2008-05-06 Heijmans Infrastructuur Bv METHOD AND COMPOSITION FOR EXTRACTING FINE SUBSTANCE.
CN102286951A (en) * 2011-08-30 2011-12-21 昆明理工大学 Method for automatically collecting road garbage by wind power
CN102286951B (en) * 2011-08-30 2014-08-06 昆明理工大学 Method for automatically collecting road garbage by wind power
CN103410112A (en) * 2013-08-13 2013-11-27 中联重科股份有限公司 Cleaning suction nozzle and cleaning vehicle
CN104389286A (en) * 2014-12-10 2015-03-04 烟台海德专用汽车有限公司 Wet dust suppressor for use at circulating air outlet of road sweeping equipment
CN106702934A (en) * 2016-12-28 2017-05-24 中联重科股份有限公司 Cleaning suction nozzle and road cleaning vehicle
CN111485522A (en) * 2019-01-25 2020-08-04 郑州宇通重工有限公司 Gas-liquid two-phase washing suction nozzle and sanitation vehicle
CN111485522B (en) * 2019-01-25 2022-06-07 郑州宇通重工有限公司 Gas-liquid two-phase washing suction nozzle and sanitation vehicle

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