WO2012159280A1

WO2012159280A1 - Dust collecting system and road sweeping vehicle

Info

Publication number: WO2012159280A1
Application number: PCT/CN2011/075544
Authority: WO
Inventors: 辛绪早; 肖庆麟; 谢永洲; 张星明; 沈维阳
Original assignee: 长沙中联重工科技发展股份有限公司; 湖南中联重科专用车有限责任公司
Priority date: 2011-05-26
Filing date: 2011-06-09
Publication date: 2012-11-29
Also published as: CN103061296B; CN103061296A; CN102277846B; CN102277846A

Abstract

A dust collecting system includes a suction means, a dustbin (10), a suction tube (20) and a suction nozzle (30). They are connected in turn. There are water inlets (23) on the suction tube (20). The dust collecting system also includes a water supply device, which supplies water for the suction tube (20) through said water inlets (23). By supplying water to the suction tube, inner wall of the suction tube is moistened by said dust collecting system, besides dust and waste carried by airflow are further moistened, therefore friction between airflow with dust and the inner wall of the suction tube can be decreased, and stick and clog can be avoided or reduced. A road sweeping vehicle including said dust collecting system is also provided.

Description

Dust removal system and road sweeper

Technical field

The present invention relates to wet dust removal, and in particular to a dust removal system and a road sweeper. Background technique

The sweeper has the functions of wet dust removal and sweeping, and has the advantages of fast cleaning speed, low environmental pollution and high cleaning efficiency. Wherein, the road sweeping vehicle comprises a dust removing system, and the dust removing system comprises a sweeping disc, a suction nozzle, an elastic telescopic tube, a straw, a garbage box and a suction device (for example, a suction fan) for providing suction airflow respectively disposed on the vehicle body. Wait. The sweeping disk cleans the road for dust and debris through a sweeper mounted on the sweeping disk. In order to avoid dust and air pollution, the sweeper is generally equipped with a water spray device in the upper part of the sweeping disc. The pressurized clean water required by the sprinkler is provided by the water tank and sprinkler system provided by the vehicle body. . During operation, the atomized clean water sprayed from the water spray device on the upper part of the sweeping water first sprays water, dust, garbage, etc. on the road surface to pre-wet. Then, the sweeping brush sweeps the wet garbage to the front of the nozzle, and under the suction provided by the suction device, the airflow carrying the moist garbage (hereinafter referred to as the dusty airflow) passes through the nozzle and elastically expands and contracts. The tube and straw are sucked into the trash can. In the process, the atomized clean water sprayed from the water spray device disposed inside the nozzle re-sprays the wet waste flowing through the nozzle, so that the water spray is humidified twice before and after the road sweeper The dust of the work has been effectively controlled.

In order to make the flow of the suction fluid smoother and reduce the wear of the dust-containing airflow to the suction blower, the sweeping vehicle generally adopts the rear layout of the suction blower. That is, after the waste water is wetted by the water spray, the waste bin is sucked by the suction of the suction fan through the suction nozzle, the suction pipe, or the like. The dust-laden gas can only enter the suction fan and be discharged to the atmosphere through the exhaust outlet after the garbage is settled in the garbage can. In the flow passage of the dust-containing airflow, since the water spray device is provided inside the suction nozzle, and the negative pressure and the speed of the dust-containing airflow are very high, the overflow surface (the surface through which the dust-containing airflow flows) It is not easy to cause sticking. Due to the joint action of the car body bump and the nozzle beating during the driving process, the elastic telescopic tube continues to shake, and the overcurrent surface does not cause sticking. However, the straw is prone to sticking. The main reasons are as follows:

On the one hand: In order to make the garbage distributed reasonably in the garbage bin, the straw is inclined backwards at a certain angle as a whole. The mixture of fully humidified waste is intertwined with water and air under the action of a high-speed negative pressure air stream. After passing through the nozzle, particularly through the corrugated surface of the elastic bellows, the negative pressure and velocity of the dust-laden gas flow adhering to the inner wall and the inner wall of the straw are drastically reduced by the frictional force in the flow surface. At this time, a part of the bulk or density of the garbage mixture (such as sticky clay) falls and adheres tightly to the inner wall of the inclined straw, and as the use time is prolonged, it accumulates and crosses each other. Eventually, the flow area of the straw is gradually reduced or even completely blocked.

On the other hand: The straw attached to the vehicle body moves forward in synchronization with the vehicle body. At this time, the volume of the high-speed moving or the densely mixed garbage mixture (such as sticky mud) in the inclined suction pipe may collide with the inner wall of the suction pipe. The colliding mixture of impurities (such as sticky mud) collides and adheres tightly to the inner wall of the straw, causing more accumulation and hardening into layers. This will cause the inner wall of the straw to be rough and the conveying resistance to increase, which is bound to occur after a certain degree of transport.

After the inner wall of the straw is stuck or blocked, it is not easy to detect and affect the cleaning effect of the road surface. Moreover, since the hardening is very dense, it is difficult to clean out, which brings great inconvenience to the use and maintenance. Summary of the invention

The problem to be solved by the present invention is the sticking or clogging of the straw.

In order to achieve the above object, the present invention provides a dust removal system including a suction device, a garbage box, a suction pipe and a suction nozzle which are sequentially connected, wherein the suction pipe is provided with a water passage hole, and the dust removal system further includes A water supply device that supplies water to the straw through the water passage.

Preferably, the water supply device includes a water storage container in communication with the water passing hole.

Preferably, the water supply device includes a filtering device, and the inside of the garbage can passes through the The filter device is divided into a garbage zone and a filtered water zone, and the filtered water zone is in communication with the water passing hole.

Preferably, the filtered water zone is in communication with the water passage through a hose.

Preferably, a water storage portion is provided between the hose and the water passing hole.

Preferably, one end of the hose is provided with a sealing ring, the outer wall of the straw is provided with an annular groove, and a plurality of water passing holes are arranged along the circumferential direction of the straw, and the plurality of water holes are located in the ring In the groove, the seal ring and the annular groove are joined to form the water reservoir.

Preferably, the filtering device comprises a partition connected to the side wall of the refuse bin and a filter plate connected to the partition, the partition having an opening, the filter plate being from at least one side edge of the opening Extending upwardly, the partition and the filter plate separate the interior of the waste bin into the refuse zone and the filtered water zone.

Preferably, the opening is disposed between the partition plate and a side wall of the garbage can, and the filter plate extends upward from a side edge of the opening opposite to the side wall of the garbage can, And the upper edge and the side edge of the filter plate are respectively connected to the side wall of the garbage bin through a baffle, and the partition plate and the filter plate separate the interior of the garbage can into the garbage area and the filtered water Area.

Preferably, the partition is disposed obliquely within the waste bin and has a plurality of the openings in an oblique direction.

Preferably, the water supply device further includes a filter connected between the filtered water zone and the water passing hole, and two ends of the hose are respectively connected to the filter and the water passing hole.

Preferably, the suction device comprises a suction fan, the garbage box is provided with an air suction port, and the suction fan is connected with the air suction port.

Preferably, the waste bin is provided with an openable discharge opening.

The present invention also provides a road sweeper comprising a frame, a sweeping disk and a dust removing system of the present invention, the sweeping wheel and the dust removing system being respectively disposed on the frame.

Preferably, a first water spray device is disposed in the suction nozzle, and the sweeping disk is provided with a second water spray device. Preferably, the waste bin and the suction nozzle are mounted on the frame of the vehicle, and the suction pipe is The bag includes an upper upper segment and a lower lower segment respectively located in the inner portion and the outer outer portion of the garbage bin, and the upper segment is fixed and fixed. The upper and lower sections of the waste disposal tank are fixedly fixed on the frame of the vehicle frame, and the upper section and the description are as described above. The lower and lower sections are connected by a tight seal seal ring and can be pivoted relative to each other, and the lower section is connected to the suction nozzle. Then, the water passage hole is disposed on the lower section of the description. .

Preferably, the sweeping road vehicle further includes a lifting and lowering mechanism, and the dust removing system further includes elastically extending and stretching. a tube, wherein the lower section passes through the elastically stretchable tube and is connected to the suction nozzle, the suction nozzle The vehicle is mounted and mounted to the vehicle frame by the lifting and lowering mechanism. .

Through the above-mentioned technical description of the technical scheme, the water supply device is provided to supply water to the suction pipe through the through-water hole, and the water is placed in the suction and suction device. The negative and negative pressure generated by the production is used to continue the continuous flow, and then the inner wall of the suction pipe is wetted from one side, and the other is another On the other hand, it faces the dust and dust and the garbage that are carried by the airflow and flows into the wet and moist process (that is, the volumetric or dense density of the body is larger). The dilute and diluted mixture of the garbage and the waste compound can be reduced to reduce the frictional flow of the low-containing dust-containing gas stream and the inner wall of the suction pipe and avoid Avoid or reduce light and sticky plugging and plugging plugs. .

Other features and advantages of the invention will be set forth in the Detailed Description of the Detailed Description. . Attached to the drawings

The accompanying drawings are provided to provide a further step-by-step understanding of the invention, and are constructed to illustrate a part of the description of the book. And, together with the concrete implementation method of the lower surface, is used to explain the present invention, but it does not constitute a pair of inventions. Limit system. . In the attached drawings::

Figure 11 is a schematic view showing the structure of a structure of a dust removal system according to the present invention;

Figure 22 is a cross-sectional view showing the face of the AA--AA in Fig. 11;

Description of the reference numerals

10: trash can

10a: Garbage area 10b: Filtered water area 12: Air intake : Upper 22: Lower 23: Water hole

24: Seal 25: Ring groove

30: suction nozzle 31: walking wheel

40: Filter 41: Hose 42: Sealing ring 43 : Seal

50: Filter unit 51: Partition 51a: Opening 52: Filter plate 53 : Baffle 60: Elastic expansion 70: Frame Detailed description

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are intended to be illustrative and not restrictive.

In the present invention, the orientation words such as "up, down, left, and right" as used herein generally refer to the upper, lower, left, and right as shown in the accompanying drawings; "inside and outside". It refers to the inside and outside of the outline of each component itself.

The dust removing system of the present invention comprises a suction device, a garbage can 10, a suction pipe 20 and a suction nozzle 30 which are sequentially connected, wherein the suction pipe 20 is provided with a water passing hole 23, and the dust removing system further comprises the water passing hole 23 is a water supply device that supplies water to the straw 20.

In use, the negative pressure generated by the suction device causes the dust-laden gas stream to flow from the suction nozzle 30 through the suction tube 20 to the waste bin 10. At the same time, the water supply device supplies water to the suction pipe 20 through the water passing hole 23, and the water then flows along the suction pipe 20 to the garbage can 10 with the dust-containing air flow, and a part of the water contacts and wets the inner wall of the suction pipe 20 during the flow. A portion of the water will wet the moist waste in the dusty gas stream, thereby diluting the bulk or density of the waste mixture to reduce its viscosity. Therefore, on the one hand, the friction coefficient of the inner wall of the straw 20 can be lowered by moistening the inner wall of the straw 20, and on the other hand, the viscosity of the wet garbage carried in the dust-containing airflow can be reduced, thereby reducing the airflow with the inner wall of the straw 20. The friction of the wet garbage carried. Among them, the water supply device can be in various appropriate forms as long as water can be supplied to the suction pipe 20 through the water passing hole 23. In addition, the water can be pure water. In an embodiment of the invention, the water supply device includes a water storage container that communicates with the water passing hole 23. Pure water can be stored in the water storage container to be supplied to the straw 20 through the water passing hole 23.

Preferably, in a preferred embodiment of the invention. The sewage contained in the wet garbage collected in the garbage can 10 can be utilized. Specifically, as shown in FIGS. 1 and 2, the water supply device includes a filtering device 50, and the inside of the garbage can 10 is divided into a garbage area 10a and a filtered water area 10b by the filtering device 50, the filtered water The region 10b is in communication with the water passing hole 23. With this arrangement, the moist waste carried in the airflow settles in the waste bin 10, and the sewage in the wet waste can be separated into the filtered water zone 10b by the filtering device 50, and the waste is separated into the garbage zone 10a. . The filtered water is filtered through the filtering device 50 to form filtered water which can be supplied to the straw 20 through the water passage 23 instead of the clean water to wet the inner wall of the straw 20 and to dilute the volume or density of the garbage mixture. Further, the filtered water can be returned to the refuse bin 10 with the dust-containing gas stream and filtered by the filtering device 50 to return to the filtered water region 10b, thereby enabling recycling.

The filtering device 50 can adopt various appropriate structures as long as the wet garbage in the garbage can 10 can be separated into garbage and filtered water, and the garbage and the filtered water are respectively held in the garbage area 10a and the filtered water area 10b. Just fine.

In an embodiment of the invention, the filtering device 50 comprises a partition 51 connected to the side wall of the waste bin 10 and a filter plate 52 connected to the partition 51, the partition 51 having an opening 51a The filter plate 52 extends upward from at least one side edge of the opening 51a, and the partition plate 51 and the filter plate 52 divide the interior of the waste bin 10 into the garbage area 10a and the filtered water area 10b. .

By providing the partition 51, it is possible to receive the wet garbage which is sucked into the dust-containing airflow of the garbage can 10 from the suction pipe 20. The sewage in the moist waste will flow through the opening 51a to the filtered water zone 10b through the filter plate 52 extending upward from at least one side edge of the opening 51a, thereby filtering the water zone 10b. The filtered water is accumulated, and the flow of the filtered water can be referred to the arrow in FIG. The preferred configuration of the present embodiment avoids the accumulation of debris on the filter panel and clogging the filter panel as compared to arranging a horizontal filter panel directly within the trash can 10. In the present embodiment, even if garbage accumulation occurs, it is only accumulated on the partition plate 51, and the filter plate 52 extending upward from the opening 51a is not completely blocked, thereby maintaining the filtering function of the filter device.

Among them, the opening 51a may be formed in various shapes and may be formed at any appropriate position of the spacer 51. The filter plate 52 may extend upward from at least one side edge of the opening 51a so that sewage may be filtered from at least one side edge of the opening 51a and flowed into the opening 51a to be collected in the filtered water zone 10b. Specifically, a plurality of filter sheets 52 may extend upward and intersect around the side edges of the opening 51a to surround the opening 51a from the side and the upper side, and the sewage may flow into the opening 51a through the filter plate 52 from the side and above the opening 51a. Alternatively, a plurality of filter plates 52 may be conveniently extended up to the top of the waste bin 10 around each side of the opening 51a so that sewage may flow from the side of the opening 51a through the filter plate 52 into the opening 51a.

In a preferred embodiment of the present invention, as shown in FIGS. 1 and 2, the opening 51a is disposed between the partition 51 and the side wall of the garbage can 10, and the filter plate 52 is One side edge of the opening 51a opposite to the side wall of the garbage can 10 extends upward, and the upper edge and the side edge of the filter plate 52 are connected to the side wall of the trash can 10 by a baffle 53, respectively The partition plate 51 and the filter plate 52 divide the inside of the garbage can 10 into the garbage area 10a and the filtered water area 10b. With this arrangement, it is possible to prevent the garbage from falling directly on the filter plate 52 through the baffle 53 to prevent the filter plate 52 from being clogged, while simplifying the structure and making full use of the space to facilitate the accumulation of the garbage and the collection of the filtered water.

In a preferred embodiment of the present invention, as shown in Fig. 1, the partition plate 51 is disposed obliquely inside the waste bin 10 and has a plurality of the openings 51a in an oblique direction. Due to the negative pressure generated by the suction device, the wetted debris will settle at a particular location (e.g., at a location remote from the suction opening 12 described below, i.e., to the right of the trash can 10 in Figure 1). The arrangement by the present embodiment can be Filtration can be carried out through the filter plates 52 at different openings 51a when the settling reaches different water levels. Preferably, as shown in FIG. 1, the filtered water zone 10b and the water passing hole 23 may be connected by a hose 41 so that the hose 41 can pass when the components such as the pipette 20 are slightly vibrated or displaced. A corresponding flexible displacement is used to adjust the connection position to ensure that the connection of the filtered water zone 10b and the water passage 41 is unaffected.

Preferably, the connection between the hose 41 and the water passing hole 23 has a water storage portion, so that a uniform flow of filtered water can be provided for different shapes of the water holes or for the plurality of water holes. For example, the water passage hole 23 may be formed in a circular shape, a rectangular shape, or the like, or may be formed in an arc shape along the outer wall of the suction pipe 20, and the water storage portion may provide a uniform flow rate of filtered water along the circumference of the water passage hole 23.

More preferably, as shown in FIG. 1 and FIG. 2, the end of the hose 43 connected to the water passing hole 23 is provided with a sealing ring 42, and the outer wall of the straw 20 is provided with an annular groove 25 (the The annular groove 25 may be defined by a pair of annular groove walls projecting outward from the outer wall of the suction pipe 20, and a plurality of water passing holes 23 are provided along the circumferential direction of the suction pipe 20, and the plurality of water passing holes 23 are located at the In the annular groove 25, the seal ring 42 and the annular groove 25 are joined to form the water reservoir. With this arrangement, the filtered water is supplied to the water storage portion through the hose 41 and can flow from the water storage portion uniformly through the respective water holes 23 into the suction pipe 20, thereby uniformly moisturizing the inner wall of the suction pipe 20 in the circumferential direction. More preferably, the seal ring 42 and the annular groove 25 may be sealed by a gasket 43 to ensure that the water reservoir can sealingly contain the filtered water.

Additionally, the filter plate 52 can be used to filter, for example, impurities having a minimum dimension of 1 mm, depending on the size of the filter holes on the filter plate 52. In addition, the water supply device may further include a filter 40 connected between the filtered water region 10b and the water passing hole 23, and two ends of the hose 41 are respectively connected to the filter 40 and the water passage 23 are provided to provide cleaner water to the suction pipe 20. The filter 40 can be used to filter fibrous impurities, and by this arrangement, it is ensured that the filtered water supplied to the water passing holes 23 of the suction pipe 20 is free of fibrous impurities to avoid possible passage of the water holes 23 or the suction pipe 20 due to the inclusion of fibrous impurities. . More preferably, the water inlet of the filter 40 can be spaced a predetermined distance from the bottom of the filtered water zone 10b to avoid the water filtered by the filtering device 50. A precipitate formed automatically in the water filtration zone 10b. For example, the water inlet of the filter 40 can be made 5-20 cm from the bottom of the filtered water zone 10b. In other words, the filtered water supplied to the water passing hole 23 through the hose 41 is first subjected to coarse filtration through the filtering device 50, and then further filtered by automatic sedimentation in the filtered water region 10b, and finally passed through the fine filter of the filter 40 through the hose. 41 is supplied to the water passing hole 23, thereby ensuring that the filtered water supplied into the suction pipe 20 is sufficiently pure by triple filtration.

The suction device may be any suitable type of device capable of producing a suction effect, for example, the suction device may be a device capable of generating a negative pressure. Preferably, the suction device includes a suction fan, and the garbage can 10 is provided with an air suction port 12, and the suction fan is connected to the air suction port 12.

Further, as shown in Fig. 1, the garbage can 10 is provided with an openable discharge port 11 so that sewage and sediment can be discharged by opening the discharge port 11, and can be taken into the garbage can 10 through the discharge port 11 for maintenance.

According to another aspect of the present invention, the present invention provides a road sweeper including a frame 80, a sweeping disk, and a dust removing system of the present invention, the sweeping wheel and the dust removing system being respectively disposed in the vehicle On the shelf 80.

Further, a first water spray device may be disposed in the suction nozzle 30, and the sweeping disk may be provided with a second water spray device to suppress dust generated by the dust removing operation.

The first water spray device and the second water spray device may be various devices suitable for spraying atomized clean water to spray water and pre-wet soil, dust, garbage, and the like. For example, the first water spray device and the second spray device may have the same structure and may provide clean water through the same water supply device. The suppression of dusting by the first water spray device and the second water spray device is a technical means known to those skilled in the art and will not be described in detail herein.

In an embodiment of the present invention, as shown in FIG. 1, the garbage can 10 and the suction nozzle 30 may be respectively mounted on the frame, and the straw 20 may be respectively located in the garbage can 10 The upper section 21 and the lower section 22 of the inner and outer portions, the upper section 21 may be fixed to the waste bin 10, and the lower section 22 may be fixed to the frame 80, and the upper section 21 and the lower section 22 may be The lower section 22 is connected to the suction nozzle 30 by a sealing connection by a sealing ring 24, and the water passing hole 23 may be provided on the lower section 22. With this arrangement, the upper section 21 can be flipped over a range of angles with the trash can 10, while the lower section 22 can be positioned relative to the frame 80 unaffected.

In addition, the road sweeping vehicle may further include an elevating mechanism, and the dust removing system may further include an elastic telescopic tube 70. The lower section 22 is connected to the suction nozzle 30 through the elastic telescopic tube 70, and the suction nozzle 30 passes The lifting mechanism is mounted to the frame 80. With this arrangement, when the road sweeping vehicle of the present invention is in a running state and no cleaning operation is performed, the suction nozzle 30 can be lifted to a certain height from the ground by the lifting mechanism (for example, 220 mm or more from the ground) to ensure the vehicle is unobstructed. . At this time, the elastic bellows 10 is in a compressed state. When the road sweeper of the present invention performs the cleaning operation, the suction nozzle 30 can be lowered to the working position by the lifting mechanism. At this time, the suction nozzle 30 can be supported on the road surface by the traveling wheel 31 and walk with the vehicle, and the elastic bellows 70 is in an extended state.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments, and various simple modifications of the technical solutions of the present invention may be made within the scope of the technical idea of the present invention. These simple variations are within the scope of the invention.

It should be further noted that the specific technical features described in the above specific embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not be further described in various possible combinations.

In addition, any combination of various embodiments of the invention may be made, as long as it does not deviate from the idea of the invention, and should also be regarded as the disclosure of the invention.

Claims

Rights request

A dust removal system comprising a suction device, a waste bin (10), a suction pipe (20) and a suction nozzle (30), which are sequentially connected, wherein the suction pipe (20) is provided with water The hole (23), the dust removing system further includes a water supply device for supplying water to the straw (20) through the water passing hole (23).

The dust removing system according to claim 1, wherein the water supply device includes a water storage container that communicates with the water passing hole (23).

The dust removing system according to claim 1, wherein the water supply device comprises a filtering device (50), and the inside of the garbage can (10) is divided into garbage areas by the filtering device (50)

(10a) and the filtered water zone (10b), the filtered water zone (10b) is in communication with the water passing hole (23).

The dust removing system according to claim 3, wherein the filtered water zone (10b) communicates with the water passing hole (23) through a hose (41).

The dust removing system according to claim 4, wherein the hose (41) and the water passing hole (23) have a water storage portion.

The dust removing system according to claim 5, wherein one end of the hose (43) is provided with a sealing ring (42), and an outer groove of the suction pipe (20) is provided with an annular groove (25). a plurality of water passing holes (23) are disposed in a circumferential direction of the suction pipe (20), the plurality of water passing holes (23) are located in the annular groove (25), the sealing ring (42) and the annular groove (25) Engaging to form the water storage portion.

The dust removal system according to any one of claims 4-6, wherein the filtering device (50) comprises a partition (51) connected to a side wall of the waste bin (10) and connected to the a filter plate (52) of the partition plate (51), the partition plate (51) having an opening (51a), the filter plate (52) extending upward from at least one side edge of the opening (51a), the partition A plate (51) and the filter plate (52) separate the interior of the waste bin (10) into the garbage zone (10a) and the filtered water zone (10b)

8. The dust removal system according to claim 7, wherein the opening (51a) is disposed between the partition plate (51) and a side wall of the garbage can (10), the filter plate (52) Extending upward from a side edge of the opening (51a) opposite the side wall of the trash can (10), and the upper edge and the side edge of the filter plate (52) respectively pass through the baffle (53) Connected to the side wall of the waste bin (10), the partition (51) and the filter plate (52) separate the interior of the waste bin (10) into the garbage zone (10a) and filtered water District (10b

The dust removing system according to claim 7, wherein the partition plate (51) is obliquely disposed in the garbage box (10) and has a plurality of the openings (51a) in an oblique direction.

10. The dust removal system according to claim 7, wherein the water supply device further comprises a filter (40) connected to the filtered water zone (10b) and the water passing hole (23) Between the two ends of the hose (41) are respectively connected to the filter (40) and the water passing hole (23).

11. The dust removal system according to claim 1, wherein the suction device comprises a suction fan, and the waste bin is provided with an air suction port (12), and the suction fan is connected to the air suction port (12).

12. The dust removal system according to claim 1, wherein the waste bin (10) is provided with an openable discharge port (11).

13. A road sweeper, characterized in that the road sweeper comprises a frame (80), a sweeping disk and a dust removing system according to any one of claims 1-12, wherein the sweeping wheel and the dust removing system respectively It is placed on the frame (80).

The road sweeping vehicle according to claim 13, wherein the nozzle (30) is provided with a first water spray device, and the sweep disk is provided with a second water spray device.

The road sweeping vehicle according to claim 13 or 14, wherein the garbage can (10) and the suction nozzle (30) are mounted on the frame, and the straw (20) comprises a separate location The upper section (21) and the lower section (22) of the inner and outer portions of the garbage can (10), the upper section (21) is fixed to the garbage can (10), and the lower section (22) is fixed to the frame ( 80) upper, the upper section (21) and the lower section (22) are sealingly connected by a sealing ring (24) and can be relatively pivoted, and the lower section (22) is connected with the nozzle (30), A water hole (23) is provided on the lower section (22).

The road sweeping vehicle according to claim 15, wherein the road sweeping vehicle further comprises a lifting mechanism, the dust removing system further comprises an elastic telescopic tube (70), and the lower section (22) passes the elastic telescopic tube (70) is connected to the suction nozzle (30), and the suction nozzle (30) is attached to the frame (80) by the lifting mechanism.