Washing and sweeping vehicle and sucking and picking system thereof

Abstract

The utility model relates to the technical field of road cleaning, and particularly discloses a suction and pickup system of a cleaning and sweeping vehicle and the cleaning and sweeping vehicle, the suction and pickup system of the cleaning and sweeping vehicle comprises a suction nozzle device, a first water spraying device and a second water spraying device, and the suction nozzle device is provided with a first suction and pickup cavity; the first water spraying device is arranged behind the first sucking and picking cavity; the second water spraying device is connected to the left side and / or the right side of the suction nozzle device; at least one of the first water spraying device and the second water spraying device comprises a plurality of water spraying assemblies arranged side by side. According to the sucking and picking system of the cleaning and sweeping vehicle, the first water spraying device and the second water spraying device are matched to improve the cleaning effect of the cleaning and sweeping vehicle, the first water spraying device and / or the second water spraying device comprise the multiple water spraying assemblies arranged side by side, different operation requirements can be met, and the cleaning effect can be improved according to the operation speed of the cleaning and sweeping vehicle. Conventional sweeping and rapid sweeping operation are achieved, and the adaptability to different scenes and the operation efficiency of the cleaning and sweeping vehicle are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road cleaning, in particular to a suction and picking system of a washing and sweeping vehicle and the washing and sweeping vehicle. Background Art

[0002] The road sweeper combines the functions of a road sweeper and a high-pressure cleaning vehicle, and mainly includes two processes: water washing and sweeping. During the water washing process, the sweeper sprays water on the road surface through the nozzle of the water spray device, using the impact of water to wash away the garbage and stains on the road, and then sucks the garbage and sewage into the trash bin through the suction nozzle. The water spray device is one of the main components of the sweeper to achieve the function of cleaning the road surface, and its design affects the cleaning efficiency of the sweeper. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one purpose of the utility model is to provide a suction and picking system for a washing and sweeping vehicle, which can meet different operation requirements and improve the operation efficiency of the washing and sweeping vehicle.

[0004] Another object of the present invention is to provide a washing and sweeping vehicle, comprising the aforementioned suction and picking system.

[0005] According to the embodiment of the utility model, the suction and picking system of the washing and sweeping vehicle includes a suction nozzle device, a first water spray device and a second water spray device, the suction nozzle device has a first suction and picking chamber; the first water spray device is arranged behind the first suction and picking chamber; the second water spray device is connected to the left side and / or right side of the suction nozzle device; wherein at least one of the first water spray device and the second water spray device includes a plurality of water spray assemblies arranged side by side.

[0006] According to the suction and picking system of the washing and sweeping vehicle in the embodiment of the utility model, the cleaning effect of the washing and sweeping vehicle can be improved by arranging a first water spray device and a second water spray device, and at least one of the first water spray device and the second water spray device includes a plurality of water spray components arranged side by side, which can meet different operation requirements, and can also realize conventional cleaning and rapid cleaning operations according to the operation speed of the washing and sweeping vehicle, thereby improving the adaptability of the washing and sweeping vehicle to different scenarios and the operation efficiency.

[0007] In addition, the suction system of the washing and sweeping vehicle according to the above embodiment of the utility model may also have the following additional technical features:

[0008] In some embodiments, the first water spray device includes a first water spray assembly and a second water spray assembly, and the first water spray assembly and the second water spray assembly are arranged side by side, wherein the first water spray assembly is higher than the second water spray assembly; and / or, in the front-to-back direction, the first water spray assembly is closer to the first suction chamber than the second water spray assembly.

[0009] In some embodiments, the first water spray assembly is configured to spray water forward and downward, and the second water spray assembly has a first state and a second state. In the first state, it is configured to spray water forward and downward, and in the second state, it is configured to spray water backward and downward.

[0010] In some embodiments, the first water spray assembly includes a first spray bar and a plurality of first nozzles, the plurality of first nozzles are connected to the first spray bar at intervals, and the first nozzle is at a distance of not less than 140 mm and not more than 160 mm from the bottom of the suction nozzle device along the water spraying direction.

[0011] In some embodiments, the second water spray assembly includes a second spray bar and a plurality of second nozzles, wherein the plurality of second nozzles are connected to the second spray bar at intervals, and the distance between the second nozzle and the bottom of the suction nozzle device along the water spraying direction is not less than 110 mm and not more than 150 mm.

[0012] In some embodiments, the angle between the water spraying direction of the first water spraying assembly and the working surface is not less than 35° and not more than 45°.

[0013] In some embodiments, the angle between the water spraying direction of the second water spraying assembly and the working surface is not less than 25° and not more than 35°.

[0014] In some embodiments, the second water spray device includes a third water spray assembly and a fourth water spray assembly, and the third water spray assembly and the fourth water spray assembly are arranged side by side, wherein the third water spray assembly and the fourth water spray assembly are arranged in a front-to-back direction; or, the third water spray assembly and the fourth water spray assembly are arranged in an up-and-down direction; the height of the third water spray assembly is the same as the height of the fourth water spray assembly.

[0015] In some embodiments, the third water spray assembly and the fourth water spray assembly are spaced apart and have a spacing of not less than 90 mm.

[0016] In some embodiments, the angle between the water spraying direction of the third water spraying assembly and the working surface is not less than 25° and not more than 45°.

[0017] In some embodiments, the angle between the water spraying direction of the fourth water spraying assembly and the working surface is not less than 25° and not more than 45°.

[0018] In some implementations, the second water spray device has a first position and a second position, in which the second water spray device extends out of the suction nozzle device in the first position, and in which the second water spray device is stored in the suction nozzle device in the second position;

[0019] The suction system also includes:

[0020] a driving member, the driving member being drivingly connected to the second water spraying device and used for driving the second water spraying device to switch between the first position and the second position;

[0021] A rotating seat, the rotating seat is respectively connected to the driving member and the second water spraying device;

[0022] An elastic member, wherein the elastic member is respectively connected to the second water spraying device and the rotating seat, and is used for elastically driving the second water spraying device.

[0023] In some embodiments, the suction nozzle device further has a second suction chamber, the second suction chamber is arranged behind the first suction chamber, and the first water spraying device is arranged between the first suction chamber and the second suction chamber.

[0024] In some embodiments, it also includes a first suction tube connected to the first suction chamber and a second suction tube connected to the second suction chamber, wherein the inner diameter of the first suction tube is greater than or equal to the inner diameter of the second suction tube; and / or the distance between the suction port of the first suction tube and the suction port of the second suction tube in the front-to-back direction is not less than 140 mm; and / or the suction port of the first suction tube is higher than the suction port of the second suction tube.

[0025] In some embodiments, the first straws include two arranged in the left-right direction, the second straws include two arranged in the left-right direction, and the distance between the suction ports of the two first straws is greater than or equal to the distance between the suction ports of the two second straws.

[0026] In some embodiments, the nozzle device comprises:

[0027] A top plate, the top plate comprising a front top plate and a rear top plate arranged at intervals in a front-to-rear direction;

[0028] A shell, the shell is connected to the top plate, and a suction cavity with a bottom opening is arranged below the top plate, the shell comprises a left side plate and a right side plate, the left side plate and the right side plate are respectively connected to the left and right sides of the front top plate and the rear top plate;

[0029] Wherein, the shell further comprises a front cavity sealing plate and a front cavity anti-collision block, the front cavity sealing plate is respectively connected to the left side plate and the right side plate, the front cavity anti-collision block is respectively connected to the left side plate and the right side plate, and the first suction cavity is constructed among the front cavity sealing plate, the front cavity anti-collision block, the left side plate, the right side plate and the front top plate;

[0030] And / or, the shell further comprises a rear cavity sealing plate and a rear cavity anti-collision block, the rear cavity sealing plate is respectively connected to the left side plate and the right side plate, the rear cavity anti-collision block is respectively connected to the left side plate and the right side plate, and the second suction cavity is constructed between the rear cavity sealing plate, the rear cavity anti-collision block, the left side plate, the right side plate, and the rear top plate;

[0031] And / or, the left side plate and the right side plate are provided with suction nozzle wheels for rollably supporting the work surface.

[0032] According to the embodiment of the washing and sweeping vehicle of the utility model, it includes: a frame, the suction and picking system of the washing and sweeping vehicle mentioned above, a clean water tank, a garbage bin, a fan and a cleaning mechanism, the suction and picking system is connected to the frame; the clean water tank is connected to the first water spraying device and the second water spraying device; the garbage bin is connected to the suction nozzle device; the fan is connected to the garbage bin, and the fan is configured to drive the airflow from the suction and picking system into the garbage bin and send it out of the garbage bin after filtering; the cleaning mechanism is connected to the frame and arranged on the front side of the suction and picking system.

[0033] According to the washing and sweeping vehicle of the embodiment of the utility model, by providing the aforementioned suction and picking system, the cleaning effect and cleaning efficiency of the washing and sweeping vehicle can be improved.

[0034] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of a suction system of some embodiments of the utility model.

[0036] Figure 2 yes Figure 1 Enlarged schematic diagram of the center circle E.

[0037] Figure 3 yes Figure 1 Schematic diagram of the cross-section of BB.

[0038] Figure 4 yes Figure 1 The cross-sectional schematic diagram of BB in the figure shows the water spraying angles of the first water spraying assembly and the second water spraying assembly.

[0039] Figure 5 yes Figure 1 Schematic cross-sectional view of CC.

[0040] Figure 6 It is a schematic diagram of the suction and picking system of other embodiments of the utility model, in which the second water spraying device is hidden.

[0041] Figure 7It is a schematic diagram of a washing and sweeping vehicle according to an embodiment of the utility model.

[0042] Reference numerals:

[0043] The cleaning and sweeping vehicle 10000, the suction system 1000, the suction nozzle device 10, the first suction chamber 11, the front chamber sealing plate 111, the front chamber anti-collision block 112, the second suction chamber 12, the rear chamber sealing plate 121, the rear chamber anti-collision block 122, the left side plate 131, the right side plate 132, the front top plate 133, the rear top plate 134, the suction nozzle wheel 14, the first water spraying device 20, the first water spraying assembly 21, the first spraying rod 211, the first nozzle 212, The second water spray assembly 22, the second spray rod 221, the second nozzle 222, the second water spray device 30, the third water spray assembly 31, the fourth water spray assembly 32, the rotating seat 331, the elastic member 332, the driving member 333, the middle seat 334, the clamp 335, the first suction pipe 41, the second suction pipe 42, the frame 2000, the clean water tank 3000, the garbage bin 4000, the fan 5000, the cleaning mechanism 6000, and the working surface X. DETAILED DESCRIPTION

[0044] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0045] Combination Figure 1 and Figure 7 According to the suction system 1000 of the embodiment of the utility model, it can be applied to a washing and sweeping vehicle 10000. The suction system 1000 may include a suction nozzle device 10, and the suction nozzle device 10 has a first suction chamber 11. The suction nozzle device 10 can suck up dirt on the working surface. Specifically, the washing and sweeping vehicle 10000 may include a fan 5000. When the fan 5000 works, garbage and sewage can enter the suction chamber of the suction nozzle device 10 under the negative pressure of the fan 5000 and be sucked into the garbage bin 4000.

[0046] The suction system 1000 may also include a first water spray device 20 and a second water spray device 30. The first water spray device 20 is disposed at the rear of the first suction chamber 11, and the first water spray device 20 can clean the road surface. For example, the first water spray device 20 can spray water toward the working surface corresponding to the first suction chamber 11, and the suction nozzle device 10, under the negative pressure of the fan 5000, sucks the garbage and sewage below it into the first suction chamber 11; the second water spray device 30 can be connected to the left side and / or the right side of the suction nozzle device 10. Specifically, the second water spray device 30 can be connected to the left side of the suction nozzle device 10, or connected to the suction nozzle device 10. The right side of the suction nozzle device 10, or the left and right sides of the suction nozzle device 10, are connected with a second water spray device 30. The second water spray device 30 can be configured to clean the road surface. For example, the working surfaces on the left and right sides of the washing and sweeping vehicle 10000 can be cleaned. Specifically, when the washing and sweeping vehicle 10000 is moving forward, the second water spray device 30 can clean the road in front of the suction nozzle device 10, and it is convenient to collect the garbage on both sides of the road in front of the suction nozzle device 10, and suck it into the first suction chamber 11 through the suction nozzle device 10. In the forward direction of the washing and sweeping vehicle 10000, the first water spray device 20 can clean the front of the suction nozzle device 10, and the second water spray device 30 can clean the left and right sides of the suction nozzle device 10. The suction nozzle device 10 sucks the garbage on the road surface and the sewage generated by cleaning the road surface into the first suction chamber 11 during the forward process of the washing and sweeping vehicle 10000, thereby improving the cleaning effect of the working surface.

[0047] At least one of the first water spray device 20 and the second water spray device 30 includes a plurality of water spray assemblies arranged side by side. Specifically, the first water spray device 20 may include a plurality of water spray assemblies arranged side by side, or the second water spray device 30 may include a plurality of water spray assemblies arranged side by side, or both the first water spray device 20 and the second water spray device 30 may include a plurality of water spray assemblies arranged side by side. Multiple water spray components can work simultaneously or independently. For example, multiple water spray components can be selected to work simultaneously or independently according to the actual conditions of the road surface to be cleaned. For another example, the working status of multiple water spray components can be controlled according to the driving speed of the washing and sweeping vehicle 10000. For example, when the washing and sweeping vehicle 10000 is traveling at a low speed, one of the multiple water spray components is working, and the washing and sweeping vehicle 10000 can perform routine cleaning; when the washing and sweeping vehicle 10000 is traveling at a high speed, multiple water spray components can work simultaneously. At the same time, when the vehicle speed is high, the rotation speed of the fan 5000 can be increased accordingly. The air volume and wind pressure of the fan 5000 increase with the increase of the vehicle speed, thereby improving the efficiency of the suction nozzle device 10 in sucking and picking up sewage. The washing and sweeping vehicle 10000 can achieve rapid washing and sweeping operations, thereby improving the operating efficiency of the washing and sweeping vehicle 10000.

[0048] According to the suction and picking system 1000 of the embodiment of the utility model, the cleaning effect of the washing and sweeping vehicle 10000 can be improved by arranging the cooperation of the first water spraying device 20 and the second water spraying device 30, and at least one of the first water spraying device 20 and the second water spraying device 30 includes a plurality of water spraying components arranged side by side, which can meet different operation requirements, and can also realize conventional cleaning and rapid cleaning operations according to the operation speed of the washing and sweeping vehicle 10000, thereby improving the adaptability and operation efficiency of the washing and sweeping vehicle 10000 in different scenarios.

[0049] The plurality of water spray assemblies may be two, three, four, etc. For example, the first water spray device 20 may include two water spray assemblies arranged side by side, or three water spray assemblies arranged side by side, and the second water spray device 30 may include two water spray assemblies arranged side by side, or three water spray assemblies arranged side by side. The water spray assembly may be connected to a high-pressure water system to quickly clean dirt and contaminants on the work surface.

[0050] In addition, multiple water spray components of the same water spray device can be arranged side by side, either in the front-to-back direction or in the up-down direction. Multiple water spray components can also be arranged side by side in the front-to-back direction with a height difference in the up-down direction.

[0051] Combination Figure 1 and Figure 3 In some embodiments of the present invention, the first water spray device 20 may include a first water spray assembly 21 and a second water spray assembly 22, and the first water spray assembly 21 and the second water spray assembly 22 may be arranged side by side. For example, the first water spray assembly 21 and the second water spray assembly 22 may be arranged side by side in the front-to-back direction, and for another example, the first water spray assembly 21 and the second water spray assembly 22 may also be arranged side by side in the up-down direction; for another example, the first water spray assembly 21 and the second water spray assembly 22 may be arranged side by side in the front-to-back direction, and have a height difference in the up-down direction.

[0052] Among them, the first water spray component 21 and the second water spray component 22 can both spray water toward the working surface corresponding to the first suction and picking chamber 11. Of course, the suction nozzle device 10 can also include a second suction and picking chamber 12. The first water spray component 21 can spray water toward the working surface corresponding to the first suction and picking chamber 11, and the second water spray component 22 can spray water toward the working surface corresponding to the second suction and picking chamber 12.

[0053] Combination Figure 3In some embodiments of the present invention, the first water spray assembly 21 is higher than the second water spray assembly 22. Exemplarily, the first water spray assembly 21 and the second water spray assembly 22 can be fixed to the suction nozzle device 10, specifically, they can be fixed to the left plate 131 and the right plate 132 of the suction nozzle device 10 through the base. Among them, the first water spray assembly 21 is higher than the second water spray assembly 22, so that the first water spray assembly 21 and the second water spray assembly 22 cooperate to improve the coverage angle and range of the water spray, thereby improving the cleaning effect on the road surface.

[0054] Combination Figure 3 In some embodiments of the present invention, the first water spray assembly 21 is closer to the first suction chamber 11 than the second water spray assembly 22 in the front-to-back direction. The first water spray assembly 21 and the second water spray assembly 22 cooperate to increase the coverage of the water spray and improve the cleaning effect on the road surface.

[0055] The first water spray assembly 21 can be configured to spray water in the front and downward direction. For example, the first water spray assembly 21 can spray water in the direction of the first suction chamber 11 to clean the working surface corresponding to the first suction chamber 11. The second water spray assembly 22 can also be configured to spray water in the front and downward direction. For example, the second water spray assembly 22 can spray water in the direction of the first suction chamber 11 to clean the working surface corresponding to the first suction chamber 11. One of the first water spray assembly 21 and the second water spray assembly 22 can work alone, or the first water spray assembly 21 and the second water spray assembly 22 can work at the same time. For example, when cleaning a relatively clean road surface, one of the first water spray assembly 21 and the second water spray assembly 22 can work to save water. For another example, in combination with the above, the working state of the first water spray assembly 21 and the second water spray assembly 22 can be controlled according to the speed of the vehicle, so that the washing and sweeping vehicle 10000 can achieve regular cleaning or fast cleaning.

[0056] Of course, the second water spray assembly 22 can also be configured to spray water toward the rear and lower part. For example, the suction nozzle device 10 may include a first suction chamber 11 and a second suction chamber 12 arranged along the front-to-back direction. The first water spray assembly 21 sprays water toward the front and lower part, and the second water spray assembly 22 sprays water toward the rear and lower part.

[0057] Among them, the second water spray assembly 22 can be configured to spray water toward the front and lower part or toward the rear and lower part. The direction of the nozzle on the second water spray assembly 22 can be fixed when the washing and sweeping vehicle 10000 is assembled. The direction of the nozzle on the second water spray assembly 22 can be fixed according to different configurations of the washing and sweeping vehicle 10000.

[0058] In some embodiments of the present invention, the second water spray assembly 22 may have a first state and a second state. In the first state, the second water spray assembly 22 is configured to spray water toward the front and bottom, and in the second state, the second water spray assembly 22 is configured to spray water toward the rear and bottom. For example, a driving device may be provided on the second water spray assembly 22 to drive the second water spray assembly 22 to rotate according to different usage scenarios to achieve different water spraying directions.

[0059] Combination Figure 1 and Figure 3 In some embodiments of the utility model, the first water spray assembly 21 includes a first spray bar 211 and a plurality of first nozzles 212. The plurality of first nozzles 212 are connected to the first spray bar 211 at intervals. The first spray bar 211 may be provided with a water inlet. Water flows into the first spray bar 211 from the water inlet and is sprayed out from the plurality of first nozzles 212 to form a high-pressure water curtain to clean the road surface. The distance between the first nozzle 212 and the bottom of the suction nozzle device 10 along the water spraying direction is not less than 140 mm and not more than 160 mm. Specifically, in combination with the attached Figure 3 The distance between the first nozzle 212 and the bottom of the suction nozzle device 10 along the water spraying direction is s1, wherein 140mm≤s1≤160mm. For example, s1 may be 140mm, 145mm, 150mm, 155mm, 160mm, etc. By setting the water spraying distance of the first nozzle 212 within a reasonable range, the cleaning effect of the first water spraying assembly 21 on the working surface can be improved.

[0060] Combination Figure 1 and Figure 3 In some embodiments of the utility model, the second water spray assembly 22 includes a second spray bar 221 and a plurality of second nozzles 222. The plurality of second nozzles 222 are connected to the second spray bar 221 at intervals. The second spray bar 221 may be provided with a water inlet. Water flows into the second spray bar 221 from the water inlet and is sprayed out from the plurality of second nozzles 222 to form a high-pressure water curtain to clean the road surface. The distance between the second nozzle 222 and the bottom of the suction nozzle device 10 along the water spraying direction is not less than 110 mm and not more than 150 mm. Specifically, in combination with the attached Figure 3 The distance between the second nozzle 222 and the bottom of the suction nozzle device 10 along the water spraying direction is s2, wherein 110mm≤s1≤150mm. By setting the water spraying distance of the second nozzle 222 within a reasonable range, the cleaning effect of the second water spraying assembly 22 on the working surface can be improved.

[0061] In addition, the water spraying distances of the first nozzle 212 and the second nozzle 222 may be different, so that the cooperation between the first water spraying assembly 21 and the second water spraying assembly 22 can improve the coverage of the water spraying, thereby improving the cleaning effect on the work surface.

[0062] In some embodiments of the present invention, the angle between the water spraying direction of the first water spraying assembly 21 and the working surface is not less than 35° and not more than 45°. Figure 4 The angle between the water spraying direction of the first water spray assembly 21 and the working surface is α1, wherein 35°≤α1≤45°. For example, α1 may be 35°, 40°, 45°, etc. By setting the water spraying angle of the first nozzle 212 within a reasonable range, the cleaning effect of the first water spray assembly 21 on the working surface can be improved.

[0063] In some embodiments of the present invention, the angle between the water spraying direction of the second water spraying assembly 22 and the working surface is not less than 25° and not more than 35°. Figure 4 The angle between the water spraying direction of the second water spray assembly 22 and the working surface is α2, wherein 25°≤α2≤35°. For example, α2 may be 25°, 30°, 35°, etc. By setting the water spraying angle of the second nozzle 222 within a reasonable range, the cleaning effect of the second water spray assembly 22 on the working surface can be improved.

[0064] In addition, the water spraying angles of the first nozzle 212 and the second nozzle 222 may be different, so that the first water spraying assembly 21 and the second water spraying assembly 22 can cooperate to improve the coverage of the water spraying, thereby improving the cleaning effect on the work surface.

[0065] Optionally, multiple first nozzles 212 are connected to the first spray bar 211 at intervals, and multiple second nozzles 222 are connected to the second spray bar 221 at intervals, wherein the first nozzles 212 and the second nozzles 222 can be staggered in the front-to-back direction to facilitate improving the coverage range of the water flow sprayed by the first nozzles 212 and the second nozzles 222, thereby improving the cleaning effect on the work surface.

[0066] Combination Figure 1 and Figure 2 In some embodiments of the utility model, the second water spray device 30 includes a third water spray assembly 31 and a fourth water spray assembly 32, and the third water spray assembly 31 and the fourth water spray assembly 32 are arranged side by side. Exemplarily, the third water spray assembly 31 or the fourth water spray assembly 32 can be controlled to work alone, or the two water spray assemblies can work simultaneously, according to the condition of the road surface to be cleaned or the driving speed of the washing and sweeping vehicle 10000. For example, when the road surface is relatively clean, the third water spray assembly 31 can spray water to clean the road surface, and the fourth water spray assembly 32 does not spray water to save water. When the road surface is dirty, the third water spray assembly 31 and the fourth water spray assembly 32 can spray water at the same time to improve the cleaning efficiency of the road surface.

[0067] Among them, the third water spray assembly 31 and the fourth water spray assembly 32 are arranged along the front-to-back direction. For example, when the washing and sweeping vehicle 10000 is moving forward, the third water spray assembly 31 and the fourth water spray assembly 32 can spray water at the same time, the third water spray assembly 31 can clean the working surface once, and the fourth water spray assembly 32 can clean the working surface twice, thereby improving the cleaning effect and cleaning efficiency of the working surface.

[0068] In some embodiments of the utility model, the third water spray assembly 31 and the fourth water spray assembly 32 are arranged in the up and down direction, so that the third water spray assembly 31 and the fourth water spray assembly 32 can spray water to different positions, thereby improving the coverage of the water spray on the road surface and further improving the cleaning efficiency of the road surface.

[0069] In some embodiments of the present invention, the height of the third water spray assembly 31 is the same as the height of the fourth water spray assembly 32 , which facilitates the assembly of the second water spray device 30 .

[0070] In some embodiments of the present invention, the height of the third water spray assembly 31 is different from the height of the fourth water spray assembly 32, so that the third water spray assembly 31 and the fourth water spray assembly 32 can spray water to different positions, thereby improving the coverage of the water spray on the road surface and further improving the cleaning efficiency of the road surface.

[0071] Furthermore, the third water spray assembly 31 and the fourth water spray assembly 32 are spaced apart and have a spacing of not less than 90 mm, wherein the third water spray assembly 31 and the fourth water spray assembly 32 can be spaced apart in the up-down direction, and the third water spray assembly 31 and the fourth water spray assembly 32 can also be spaced apart in the front-back direction.

[0072] Combination Figure 2 Taking the third water spray assembly 31 and the fourth water spray assembly 32 as an example, the spacing distance between the third water spray assembly 31 and the fourth water spray assembly 32 is L, where L≥90mm. This makes it easy for the third water spray assembly 31 and the fourth water spray assembly 32 to clean the same position of the working surface twice at intervals when the washing and sweeping vehicle 10000 is moving forward, thereby improving the cleaning effect of the working surface.

[0073] In some embodiments of the present invention, the angle between the water spraying direction of the third water spraying assembly 31 and the working surface is not less than 25° and not more than 45°. Figure 1 and Figure 5 The angle between the water spraying direction of the third water spray assembly 31 and the working surface is β, wherein 25°≤β≤45°. For example, β may be 25°, 30°, 35° or 40°, etc. By setting the water spraying angle of the third water spray assembly 31 within a reasonable range, the cleaning effect of the third water spray assembly 31 on the working surface can be improved.

[0074] In some embodiments of the present invention, the angle between the water spraying direction of the fourth water spraying assembly 32 and the working surface is not less than 25° and not more than 45°. Figure 1 and Figure 5 The angle between the water spraying direction of the fourth water spray assembly 32 and the working surface is β, wherein 25°≤β≤45°. For example, β may be 25°, 30°, 35° or 40°, etc. By setting the water spraying angle of the fourth water spray assembly 32 within a reasonable range, the cleaning effect of the fourth water spray assembly 32 on the working surface can be improved.

[0075] Combination Figure 2 In some embodiments of the utility model, the second water spray device 30 has a first position and a second position. In the first position, the second water spray device 30 extends out of the suction nozzle device 10 so that the road surface can be sprayed and cleaned by the second water spray device 30. In the second position, the second water spray device 30 is stored in the suction nozzle device 10. For example, when the second water spray device is not needed or the vehicle stops working, the second water spray device 30 can be stored under the suction nozzle device 10 to save space of the washing and sweeping vehicle 10000.

[0076] The suction system 1000 further includes: a driving member 333 and a rotating seat 331. The driving member 333 is connected to the second water spraying device 30 for driving the second water spraying device 30 to switch between the first position and the second position; the rotating seat 331 is respectively connected to the driving member 333 and the second water spraying device 30. Exemplarily, the driving member 333 can be a telescopic cylinder. When the driving member 333 is extended, the rotating seat 331 can be driven to rotate around its axis and drive the second driving device 30 to switch from the first position to the second position. When the driving member 333 is retracted, the rotating seat 331 can be driven to rotate around its axis and drive the second driving device 30 to switch from the second position to the first position.

[0077] The suction system 1000 may further include an elastic member 332, which is respectively connected to the second water spray device 30 and the rotating seat 331, and is used to elastically drive the second water spray device 30. For example, when the suction system 1000 encounters an obstacle during the forward movement, the elastic member 332 can buffer the second water spray device 30. When the obstacle is crossed, the elastic member 332 can drive the second water spray device 30 to reset, thereby improving the working stability of the second water spray device 30.

[0078] Optionally, the third water spray assembly 31 can be fixed to the rotating seat 331 through the intermediate seat 334, and the third water spray assembly 31 and the fourth water spray assembly 32 can be fixed by the clamp 335, so as to improve the installation efficiency and structural stability of the second water spray device 30.

[0079] The third water spray assembly 31 may include a third spray bar and a plurality of third nozzles, and the plurality of third nozzles may be connected to the third spray bar at intervals; the fourth water spray assembly 32 may include a fourth spray bar and a plurality of fourth nozzles, and the plurality of fourth nozzles may be connected to the fourth spray bar at intervals. The third spray bar and the fourth spray bar may be provided with a water inlet, which may be configured to be connected to the clean water tank 3000 of the washing and sweeping vehicle 10000. Water flows from the water inlet into the third spray bar and the fourth spray bar, and is sprayed from the plurality of third nozzles and the fourth nozzle to form a high-pressure water curtain to clean the road surface. In addition, the third nozzle and the fourth nozzle may be staggered so that the third nozzle and the fourth nozzle can spray water at different positions of the working surface to improve the cleaning efficiency of the road surface.

[0080] Combination Figure 3 and Figure 6 In some embodiments of the utility model, the suction nozzle device 10 further has a second suction chamber 12, and the second suction chamber 12 is arranged behind the first suction chamber 11, and the first water spray device 20 is arranged between the first suction chamber 11 and the second suction chamber 12. Exemplarily, the second suction chamber 12 can be controlled to work according to the cleaning condition of the road surface or the driving speed of the vehicle. For example, when the road surface is relatively clean, the second suction chamber 12 may not work, and only the first suction chamber 11 can suck the garbage to meet the cleaning needs, so as to reduce the energy consumption of the washing and sweeping vehicle 10000. For another example, when the washing and sweeping vehicle 10000 is driving at high speed, there is garbage that has not been sucked up by the first suction chamber 11. At this time, the second suction chamber 12 can work at the same time, so as to perform secondary suction on the garbage on the road surface and improve the cleaning effect of the road surface.

[0081] Combination Figure 3 In some embodiments of the present invention, the suction system 1000 also includes a first suction pipe 41 connected to the first suction chamber 11 and a second suction pipe 42 connected to the second suction chamber 12. For example, under the negative pressure of the fan 5000, garbage on the road surface enters the first suction chamber 11 and the second suction chamber 12 through the suction nozzle device 10, and enters the garbage bin 4000 of the cleaning vehicle 10000 through the first suction pipe 41 and the second suction pipe 42 connected to the suction chamber.

[0082] Among them, the inner diameter of the first suction pipe 41 is greater than or equal to the inner diameter of the second suction pipe 42. In other words, the inner diameter of the first suction pipe 41 may be equal to the inner diameter of the second suction pipe 42, or the inner diameter of the first suction pipe 41 is greater than the inner diameter of the second suction pipe 42. Combined with the foregoing, the first suction chamber 11 is arranged behind the second suction chamber 12. When the cleaning and sweeping vehicle 10000 moves forward, most of the garbage and sewage can be sucked into the first suction chamber 11, and the second suction chamber 12 can be configured to perform secondary suction on the road surface. Therefore, the inner diameter of the second suction pipe 42 can be relatively small to improve the efficiency of the fan 5000.

[0083] In some embodiments of the present invention, the distance between the suction opening of the first suction pipe 41 and the suction opening of the second suction pipe 42 along the front-to-back direction is not less than 140 mm. Figure 6 The distance between the suction port of the first suction pipe 41 and the suction port of the second suction pipe 42 along the front-to-back direction is d3, wherein d3 ≥ 140 mm, so that when the cleaning and sweeping vehicle 10000 moves forward, the first suction chamber 11 and the second suction chamber 12 can perform interval suction on the same position of the working surface, thereby improving the cleaning effect of the working surface.

[0084] Combination Figure 4 In some embodiments of the present invention, the suction opening of the first suction pipe 41 is higher than the suction opening of the second suction pipe 42. Specifically, the first suction chamber 11 is arranged in front of the second suction chamber 12. When the cleaning and sweeping vehicle 10000 moves forward, most of the garbage and sewage can be sucked into the first suction chamber 11, and the second suction chamber 12 can be configured to perform secondary suction. Therefore, the first suction chamber 11 sucks more dirt, and the second suction chamber 12 sucks less dirt. The suction opening of the first suction pipe 41 is higher than the suction opening of the second suction pipe 42, which is convenient for improving the suction efficiency of the suction nozzle device 10.

[0085] Furthermore, combined with Figure 6 , the first suction pipe 41 includes two arranged in the left-right direction, the second suction pipe 42 includes two arranged in the left-right direction, and the first suction pipe 41 and the second suction pipe 42 are both connected to the fan 5000 to improve the suction efficiency of the suction nozzle device 10. The distance between the suction ports of the two first suction pipes 41 is greater than or equal to the distance between the suction ports of the two second suction pipes 42. Specifically, the distance between the suction ports of the two first suction pipes 41 is d1, and the distance between the two second suction pipes 42 is d2, wherein d1≥d2. In combination with the foregoing, it can be understood that most of the garbage and sewage can be sucked into the first suction chamber 11, and the second suction chamber 12 can be configured for secondary suction. The distance between the suction ports of the two first suction pipes 41 is relatively large, so that the first suction chamber 11 can suck up garbage in a wider range and can suck up most of the garbage. The distance between the suction ports of the two second suction pipes 42 is relatively small, and the second suction chamber 12 is configured for secondary suction. The first suction chamber 11 and the second suction chamber 12 cooperate to improve the suction efficiency of the garbage on the working surface.

[0086] Combination Figure 1 and Figure 3 In some embodiments of the utility model, the nozzle device 10 includes: a top plate and a shell, the shell is connected to the top plate, and a suction cavity with a bottom opening is surrounded below the top plate, wherein the top plate includes a front top plate 133 and a rear top plate 134 arranged at intervals along the front-to-back direction; the shell includes a left side plate 131 and a right side plate 132, and the left side plate 131 and the right side plate 132 are respectively connected to the left and right sides of the front top plate 133 and the rear top plate 134.

[0087] Among them, the shell also includes a front cavity sealing plate 111 and a front cavity anti-collision block 112, the front cavity sealing plate 111 is respectively connected to the left side plate 131 and the right side plate 132, the front cavity anti-collision block 112 is respectively connected to the left side plate 131 and the right side plate 132, and a first suction picking cavity 11 is constructed between the front cavity sealing plate 111, the front cavity anti-collision block 112, the left side plate 131, the right side plate 132, and the front top plate 133, which is convenient for the processing and forming of the suction nozzle device 10 and improves the structural strength and stability.

[0088] In some embodiments of the utility model, the shell also includes a rear cavity sealing plate 121 and a rear cavity anti-collision block 122, the rear cavity sealing plate 121 is respectively connected to the left side plate 131 and the right side plate 132, the rear cavity anti-collision block 122 is respectively connected to the left side plate 131 and the right side plate 132, and a second suction cavity 12 is constructed between the rear cavity sealing plate 121, the rear cavity anti-collision block 122, the left side plate 131, the right side plate 132, and the rear top plate 134, which is convenient for the processing and forming of the suction nozzle device 10 and improves the structural strength and stability.

[0089] In some embodiments of the present invention, the left plate 131 and the right plate 132 are provided with suction nozzle wheels 14 for rollably supporting the working surface to reduce the friction during the movement of the suction nozzle device 10 .

[0090] In some specific embodiments of the present invention, the suction system 1000 may include a suction nozzle device 10, which may include a first suction chamber 11 and a second suction chamber 12 arranged front and back, a first water spray device 20 is disposed between the first suction chamber 11 and the second suction chamber 12, the first water spray device 20 includes a first water spray component 21 and a second water spray component 22, the second water spray device 30 is connected to the left and right sides of the suction nozzle device 10, and the second water spray device 30 includes a third water spray component 31 and a fourth water spray component 32.

[0091] When the washing and sweeping vehicle 10000 moves forward, the suction nozzle device 10 can be driven forward. For example, when the vehicle speed is 3-20Km / h for ordinary cleaning operations, the first water spray component 21 and the third water spray component 31 can spray water to clean the road surface, and the sewage after cleaning can be converged to the front of the suction nozzle device 10 when the washing and sweeping vehicle 10000 moves forward, and the fan 5000 and the first suction chamber 11 work, and the first suction pipe 41 is connected to the suction system. Under the negative pressure of the suction system, the sewage and garbage are sucked into the first suction chamber 11 of the suction nozzle device 10 by the suction system, and are sucked into the garbage bin 4000 through the suction pipe.

[0092] For another example, when the vehicle speed is 20-35 km / h and the vehicle is operating rapidly, the first water spray assembly 21, the second water spray assembly 22, the third water spray assembly 31, and the fourth water spray assembly 32 can spray water simultaneously to clean the road surface, and the fan 5000, the first suction chamber 11, and the second suction chamber 12 work. Under the negative pressure of the suction system, the sewage and garbage entering the first suction chamber 11 and the second suction chamber 12 of the suction nozzle device 10 are sucked into the garbage bin 4000 by the suction system. Among them, the first water spray assembly 21 and the third water spray assembly 31 can clean the road surface once, the second water spray assembly 22 and the fourth water spray assembly 32 can clean the road surface twice, the first suction chamber 11 can suck up the garbage and sewage once, and the second suction chamber 12 can suck up the garbage and sewage twice, which can reduce the operation time, improve the operation efficiency, and save the energy consumption of the washing and sweeping vehicle 10000.

[0093] Combination Figure 7 According to the embodiment of the utility model, the washing and sweeping vehicle 10000 includes a vehicle frame 2000, the aforementioned suction and picking system 1000, a clean water tank 3000 and a garbage bin 4000. The suction and picking system 1000 is connected to the vehicle frame 2000; the clean water tank 3000 is connected to the first water spray device 20 and the second water spray device 30, and supplies water to the first water spray device 20 and the second water spray device 30. The garbage bin 4000 is connected to the suction nozzle device 10, and the garbage sucked into the suction nozzle device 10 is sucked into the garbage bin 4000 through a suction pipe and settles in the garbage bin 4000.

[0094] The cleaning and sweeping vehicle 10000 may further include a fan 5000, which is configured to drive the airflow self-priming system 1000 to enter the garbage bin 4000 and send the air out of the garbage bin 4000 after filtering.

[0095] The washing and sweeping vehicle 10000 may further include a cleaning mechanism 6000, which is connected to the vehicle frame 2000 and is disposed at the front side of the suction and picking system 1000. Specifically, when the washing and sweeping vehicle 10000 is working, the cleaning mechanism 6000 and the suction and picking system 1000 work, and the cleaning mechanism 6000 can collect the garbage on both sides of the washing and sweeping vehicle 10000 in front of the suction nozzle device 10, and the fan 5000 rotates, and a negative pressure is generated in the sedimentation chamber of the garbage bin 4000 through the air inlet pipe of the fan 5000, so as to suck the garbage below the suction nozzle device 10 into the suction and picking cavity, and then suck it into the garbage bin 4000 through the suction pipe.

[0096] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0097] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0098] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0099] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0100] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0101] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A suction system (1000) for a washing and sweeping vehicle, characterized in that: include: A suction nozzle device (10), wherein the suction nozzle device (10) comprises a first suction chamber (11); A first water spray device (20), the first water spray device (20) being arranged at the rear of the first suction chamber (11); a second water spray device (30), the second water spray device (30) being connected to the left side and / or the right side of the suction nozzle device (10); Wherein, at least one of the first water spray device (20) and the second water spray device (30) comprises a plurality of water spray assemblies arranged side by side.

2. The suction and picking system (1000) of a washing and sweeping vehicle according to claim 1, characterized in that: The first water spray device (20) comprises a first water spray assembly (21) and a second water spray assembly (22), wherein the first water spray assembly (21) and the second water spray assembly (22) are arranged side by side. Wherein, the first water spray assembly (21) is higher than the second water spray assembly (22); and / or, in the front-to-back direction, the first water spray assembly (21) is closer to the first suction chamber (11) than the second water spray assembly (22).

3. The suction and picking system (1000) of a washing and sweeping vehicle according to claim 2, characterized in that: The first water spray assembly (21) is configured to spray water forward and downward, and the second water spray assembly (22) has a first state and a second state. In the first state, the water spray assembly is configured to spray water forward and downward, and in the second state, the water spray assembly is configured to spray water backward and downward.

4. The suction and picking system (1000) of a washing and sweeping vehicle according to claim 2 or 3, characterized in that: The first water spray assembly (21) comprises a first spray bar (211) and a plurality of first nozzles (212), the plurality of first nozzles (212) being connected to the first spray bar (211) at intervals, and the distance between the first nozzle (212) and the bottom of the suction nozzle device (10) along the water spraying direction is not less than 140 mm and not more than 160 mm; And / or, the second water spray assembly (22) comprises a second spray bar (221) and a plurality of second nozzles (222), the plurality of second nozzles (222) are connected to the second spray bar (221) at intervals, and the distance between the second nozzle (222) and the bottom of the suction nozzle device (10) along the water spraying direction is not less than 110 mm and not more than 150 mm; and / or the angle between the water spraying direction of the first water spraying assembly (21) and the working surface is not less than 35° and not more than 45°; And / or, the angle between the water spraying direction of the second water spraying assembly (22) and the working surface is not less than 25° and not more than 35°.

5. The suction and picking system (1000) of a washing and sweeping vehicle according to claim 1, characterized in that: The second water spray device (30) comprises a third water spray assembly (31) and a fourth water spray assembly (32), wherein the third water spray assembly (31) and the fourth water spray assembly (32) are arranged side by side. Wherein, the third water spray assembly (31) and the fourth water spray assembly (32) are arranged along the front-to-back direction; or, the third water spray assembly (31) and the fourth water spray assembly (32) are arranged along the up-down direction.

6. The suction and picking system (1000) of a washing and sweeping vehicle according to claim 5, characterized in that: The third water spray assembly (31) and the fourth water spray assembly (32) are arranged at intervals and have a spacing of not less than 90 mm; and / or, the angle between the water spraying direction of the third water spraying assembly (31) and the working surface is not less than 25° and not more than 45°; And / or, the angle between the water spraying direction of the fourth water spraying assembly (32) and the working surface is not less than 25° and not more than 45°.

7. The suction and picking system (1000) of a washing and sweeping vehicle according to claim 5, characterized in that: The second water spray device (30) has a first position and a second position, in which the second water spray device (30) extends out of the suction nozzle device (10) in the first position, and in the second position, the second water spray device (30) is stored in the suction nozzle device (10); The suction system (1000) further comprises: a driving member (333), the driving member (333) being drivingly connected to the second water spraying device (30) and used for driving the second water spraying device (30) to switch between the first position and the second position; A rotating seat (331), wherein the rotating seat (331) is respectively connected to the driving member (333) and the second water spraying device (30); An elastic member (332), wherein the elastic member (332) is respectively connected to the second water spraying device (30) and the rotating seat (331), and is used for elastically driving the second water spraying device (30).

8. The suction and picking system (1000) of a washing and sweeping vehicle according to claim 1, characterized in that: The suction nozzle device (10) further comprises a second suction chamber (12), wherein the second suction chamber (12) is arranged behind the first suction chamber (11), and the first water spraying device (20) is arranged between the first suction chamber (11) and the second suction chamber (12).

9. The suction and picking system (1000) of a washing and sweeping vehicle according to claim 8, characterized in that: It also includes a first suction pipe (41) connected to the first suction chamber (11) and a second suction pipe (42) connected to the second suction chamber (12). Wherein, the inner diameter of the first suction tube (41) is greater than or equal to the inner diameter of the second suction tube (42); and / or, the distance between the suction opening of the first suction tube (41) and the suction opening of the second suction tube (42) in the front-to-back direction is not less than 140 mm; and / or, the suction opening of the first suction tube (41) is higher than the suction opening of the second suction tube (42).

10. The suction and picking system (1000) of a washing and sweeping vehicle according to claim 9, characterized in that: The first suction pipes (41) include two arranged in the left-right direction, the second suction pipes (42) include two arranged in the left-right direction, and the distance between the suction ports of the two first suction pipes (41) is greater than or equal to the distance between the suction ports of the two second suction pipes (42).

11. The suction system (1000) of a washing and sweeping vehicle according to claim 8, characterized in that: The suction nozzle device (10) comprises: A top plate, the top plate comprising a front top plate (133) and a rear top plate (134) arranged at intervals in a front-to-rear direction; A shell, the shell is connected to the top plate, and a suction chamber with a bottom opening is arranged below the top plate, the shell comprises a left side plate (131) and a right side plate (132), the left side plate (131) and the right side plate (132) are respectively connected to the left and right sides of the front top plate (133) and the rear top plate (134); The shell further comprises a front cavity sealing plate (111) and a front cavity anti-collision block (112); the front cavity sealing plate (111) is respectively connected to the left side plate (131) and the right side plate (132); the front cavity anti-collision block (112) is respectively connected to the left side plate (131) and the right side plate (132); the first suction chamber (11) is constructed between the front cavity sealing plate (111), the front cavity anti-collision block (112), the left side plate (131), the right side plate (132), and the front top plate (133); And / or, the shell further comprises a rear cavity sealing plate (121) and a rear cavity anti-collision block (122), the rear cavity sealing plate (121) is respectively connected to the left side plate (131) and the right side plate (132), the rear cavity anti-collision block (122) is respectively connected to the left side plate (131) and the right side plate (132), and the second suction chamber (12) is constructed between the rear cavity sealing plate (121), the rear cavity anti-collision block (122), the left side plate (131), the right side plate (132), and the rear top plate (134); And / or, the left side plate (131) and the right side plate (132) are provided with suction nozzle wheels (14) for rollably supporting the working surface.

12. A washing and sweeping vehicle (10000), characterized in that: include: Frame(2000) ； According to the suction and picking system (1000) of a washing and sweeping vehicle according to any one of claims 1 to 11, the suction and picking system (1000) is connected to the vehicle frame (2000); A clean water tank (3000), wherein the clean water tank (3000) is connected to the first water spraying device (20) and the second water spraying device (30); A trash bin (4000), the trash bin (4000) being connected to the suction nozzle device (10); a fan (5000), the fan (5000) being connected to the trash bin (4000), the fan (5000) being configured to drive airflow from the suction and picking system (1000) into the trash bin (4000) and to send air out of the trash bin (4000) after filtering; A cleaning mechanism (6000), the cleaning mechanism (6000) is connected to the frame (2000) and is arranged on the front side of the suction system (1000).

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