CN-121976488-A - Sweeping vehicle and sewage circulation method thereof

CN121976488ACN 121976488 ACN121976488 ACN 121976488ACN-121976488-A

Abstract

The invention provides a sweeper and a sewage circulation method of the sweeper, and relates to the technical field of pavement cleaning equipment, wherein the sweeper comprises a clean water tank, a sewage pump, a filtering mechanism, a sewage suction mechanism and a flushing mechanism; the sewage pump is connected between the sewage tank and the filtering mechanism and used for inputting water in the sewage tank into the filtering mechanism, a first valve body is arranged between the sewage tank and the sewage pump, a second valve body is arranged between the sewage pump and the filtering mechanism, the filtering mechanism comprises a clear water outlet and a waste liquid outlet, the clear water outlet is connected with the clear water tank, a third valve body is arranged between the clear water outlet and the waste liquid outlet, the waste liquid outlet is connected with the sewage tank, a fourth valve body is arranged between the waste liquid outlet and the clear water tank, an inlet of the clear water tank is connected with the sewage pump, a fifth valve body is arranged between the clear water tank and the sewage pump, a spraying mechanism is connected with an outlet of the sewage pump and used for cleaning the interior of the sewage tank, and a sixth valve body is arranged between the sewage pump and the spraying mechanism.

Inventors

ZHANG PEI
LIU BAO
JI YAODONG
SUN ZHONGHUA
SUN TAO
LIU HONGTAI
ZHANG MINGWEI
LI JIE
HE XIAOQIANG
WANG XUHUI
LIU SHILIANG
LUO QIANKUN

Assignees

郑州宇通重工有限公司

Dates

Publication Date: 20260505
Application Date: 20260325

Claims (15)

1. The sweeper is characterized by comprising a clear water tank (100), a sewage tank (200), a sewage pump (300), a filtering mechanism (400), a sewage sucking mechanism (500) and a flushing mechanism (600); The flushing mechanism (600) is connected with the clean water tank (100) and is used for flushing the ground by clean water, and the sewage sucking mechanism (500) is connected with the sewage tank (200) and is used for sucking the sewage on the ground into the sewage tank (200); The sewage pump (300) is connected between the sewage tank (200) and the filtering mechanism (400) and is used for inputting water in the sewage tank (200) into the filtering mechanism (400), a first valve body (510) is arranged between the sewage tank (200) and the sewage pump (300), and a second valve body (520) is arranged between the sewage pump (300) and the filtering mechanism (400); the filtering mechanism (400) comprises a clear water outlet and a waste liquid outlet, wherein the clear water outlet is connected with the clear water tank (100), and a third valve body (530) is arranged between the clear water outlet and the waste water outlet; The clean water tank (100) is connected with the inlet of the sewage pump (300), and a fifth valve body (550) is arranged between the clean water tank and the inlet of the sewage pump; The outlet of the sewage pump (300) is connected with a spraying mechanism, the spraying mechanism is used for cleaning the interior of the sewage tank (200), and a sixth valve body (560) is arranged between the sewage pump (300) and the spraying mechanism.
2. The motor sweeper of claim 1, wherein the motor sweeper includes a first conduit (610), a second conduit (620), a third conduit (630), a fourth conduit (640), a fifth conduit (650), a sixth conduit (660), a seventh conduit (670), a four-way (710), a first tee (720) and a second tee (730), wherein the first valve body (510) includes a first valve (511) and a second valve (512); One end of the first pipeline (610) is connected with the sewage tank (200), and the other end of the first pipeline is connected with a first opening of the four-way joint (710), and the first valve (511) is arranged on the first pipeline (610); one end of the second pipeline (620) is connected with a first opening of the first tee joint (720), and the other end of the second pipeline is connected with a second opening of the four-way joint (710); One end of the third pipeline (630) is connected with the first opening of the second tee joint (730), and the other end of the third pipeline is connected with the third opening of the four-way joint (710); one end of the fourth pipeline (640) is connected with the spraying mechanism, and the other end of the fourth pipeline is connected with a fourth opening of the four-way joint (710); One end of the fifth pipeline (650) is connected with the second opening of the first tee joint (720), the other end of the fifth pipeline is connected with the outlet of the clear water tank (100), and the fifth valve body (550) is arranged on the fifth pipeline (650); One end of the sixth pipeline (660) is connected with the third opening of the first tee joint (720), and the other end of the sixth pipeline is connected with the inlet of the sewage pump (300); One end of the seventh pipeline (670) is connected with the second opening of the second tee joint (730), the other end of the seventh pipeline is connected with the inlet of the filtering mechanism (400), and the second valve body (520) is arranged on the seventh pipeline (670); the third opening of the second tee (730) is connected with the outlet of the sewage pump (300) through a pipeline.
3. The motor sweeper of claim 2 further including an inflatable cleaning module connected to the filter mechanism (400) for cleaning the filter mechanism (400) by inflating the filter mechanism (400).
4. The sweeper according to claim 3, characterized in that the filter mechanism (400) is internally provided with a filter element (430), and a purifying front cavity (410) and a purifying rear cavity (420) which are positioned at the inner side and the outer side of the filter element (430), wherein the purifying rear cavity (420) is connected with the clear water tank (100), and the purifying front cavity (410) is connected with the sewage tank (200); The sweeper further comprises an air source (910), the air source (910) is provided with a first air outlet and a second air outlet, the first air outlet is connected with the purified cavity (420), a first air valve (920) is arranged between the first air outlet and the purified cavity, and a first one-way valve (930) is communicated from the air source (910) towards the purified cavity (420); The second air outlet is connected with the purification front cavity (410), and a second air valve (940) and a second one-way valve (950) which is conducted towards the purification front cavity (410) by the air source (910) are arranged between the second air outlet and the purification front cavity.
5. The sweeper of claim 4, further comprising a source of sanitizing liquid (960), wherein the source of sanitizing liquid (960) is connected to the pre-decontamination chamber (410) with a sanitizing valve (970) disposed therebetween.
6. The motor sweeper according to any one of claims 2-5, wherein the sewage tank (200) comprises a first cabin body (210) and a second cabin body (220) which are arranged at intervals from top to bottom, the first cabin body (210) and the second cabin body (220) are communicated through a diversion trench (230), and a first filter screen (240) is arranged at the front end of the diversion trench (230), so that sewage in the first cabin body (210) flows into the second cabin body (220) from the diversion trench (230) after passing through the first filter screen (240); The sewage sucking mechanism (500) is connected with the first bin body (210), and the second bin body (220) is connected with the sewage pump (300).
7. The motor sweeper of claim 6, including a carriage and a rear cover (250) movably connected to the carriage, the carriage having an upper cavity and a lower cavity therein separated by a partition, the rear ports of the upper and lower cavities being open; When the rear cover (250) is in a closed state, the rear cover (250) closes the rear port of the upper cavity and the rear port of the lower cavity to form the first bin body (210) and the second bin body (220); The rear cover (250) is provided with a first filter screen (240) positioned in the upper cavity and a flow guide groove (230) vertically crossing the upper cavity and the lower cavity, and sewage in the upper cavity enters the flow guide groove (230) after passing through the first filter screen (240) and then flows downwards into the lower cavity.
8. The motor sweeper of claim 7, wherein an annular sealing ring (253) is provided around the inner wall of the rear cover (250) for sealing a gap between the cabin and the rear cover (250) when the rear cover (250) is in a closed state.
9. The motor sweeper of claim 7, wherein a transverse sealing strip (254) is provided on an inner wall of the rear cover (250), a partition separating the upper and lower chambers is provided in the cabin, and the transverse sealing strip (254) is adapted to abut against and form a seal with a rear edge of the partition when the rear cover (250) is closed.
10. The motor sweeper of claim 6, wherein the first filter screen (240) includes a plurality of layers of screen bodies sequentially arranged along the sewage flow direction, so that sewage in the first bin body (210) enters the diversion trench (230) after being subjected to multi-layer filtration.
11. The sweeper of claim 6, characterized in that said spraying means comprise a first nozzle (810) located in said first compartment (210), a second nozzle (820) located in said second compartment (220), and a third nozzle (830) located in said channel (230) and directed towards said first screen (240).
12. The sweeper of claim 11, characterized in that the spraying mechanism comprises a third tee (870), a fourth tee (880), a first pipe (840), a second pipe (850), a seventh valve (570) and an eighth valve (580); a first opening of the third tee (870) is connected with a port of the fourth pipe (640); The second opening of the third tee (870) is connected with the first nozzle (810) through a first pipeline (840), and a seventh valve body (570) is arranged on the first pipeline (840); The third opening of the third tee (870) is connected with the first opening of the second tee (730) through a second pipeline (850), and an eighth valve body (580) is arranged on the second pipeline (850); The second opening and the third opening of the fourth tee (880) are connected with the second nozzle (820) and the third nozzle (830) through pipelines respectively.
13. The motor sweeper of claim 7, wherein a second filter screen (251) is disposed on the rear cover (250), a drain outlet (252) communicating the inside and the outside is disposed on the rear cover (250), and the second filter screen (251) is covered on the inner side of the drain outlet (252), so that sewage in the first cabin (210) can be discharged from the drain outlet (252) after passing through the second filter screen (251).
14. A method of sewage circulation in a motor sweeper, characterized in that it is carried out by a motor sweeper according to any one of claims 6-13, comprising the steps of: Acquiring the flow Lc of the first filter screen (240) and the flow Lin of the sewage pump (300); When Lc < Lin, reducing the flow Lin of the sewage pump (300), or suspending waiting of the sewage pump (300) and adjusting the distribution coefficient Kj of the filtering mechanism (400) to be matched with Lout1 again so as to lead Lc to trend Lin; When Lc > Lin, maintaining the flow of the sewage pump (300) unchanged, or increasing the flow of the sewage pump (300) and adjusting the distribution coefficient Kj of the filtering mechanism (400) to be matched with Lout1 again so as to lead Lc to trend toward Lin; Wherein, the flow Lout1=Lin of the clean water outlet Kj。
15. The motor sweeper sewage circulation method according to claim 14, characterized in that in the case where the water jet amount Lp of the flushing mechanism (600) and the recovery rate Kh of the sewage suction mechanism (500) are determined, the flow rate Lout1 of the clean water outlet and the waste liquid outlet Lout2 are changed by adjusting the flow rate Lin of the sewage pump (300) and adjusting the distribution coefficient Kj of the filtering mechanism (400), thereby adjusting the operation period Tq of the clean water tank (100) and the warning period Tw of the full tank of the first tank body (210), wherein lout2=lin-Lout 1, tq=v1/(Lp-Lout 1), tw=v2/(Lp) Kh+lout2-Lin), V1 is the volume of the clean water tank (100), and V2 is the volume of the first tank body (210).

Description

Sweeping vehicle and sewage circulation method thereof Technical Field The invention relates to the technical field of pavement cleaning equipment, in particular to a sweeper and a sewage circulation method of the sweeper. Background Along with the acceleration of the urban process and the improvement of the environmental sanitation requirement, the sweeper is used as important equipment for cleaning urban roads, and the functions and the technologies of the sweeper are continuously developed and perfected. Modern motor sweeper is equipped with clear water tank and sewage case generally, can carry out the clean while of water spray to ground, with sewage recovery processing to avoid subaerial a large amount of ponding of remaining, improve clean efficiency and reduce the water waste. In the prior art, the sewage recycling system of the sweeper is mainly realized in a mode that clean water in a clean water tank is sprayed to the ground through a high-pressure spray head to wash away sewage, and then the sewage containing the sewage is recycled into a sewage tank through a sewage suction device. After filtration and precipitation treatment, part of the clean water can be reused for cleaning, so that the recycling of water resources is realized. The design not only saves water resources, but also improves cleaning efficiency. However, in the process of recycling sewage, the sweeper in the prior art contains a large amount of solid particles and impurities, so that the substances are easy to accumulate in the pipeline, and particularly the pipeline is easy to be blocked under the condition of insufficient efficiency or long-time maintenance of a filtering system. Pipeline blockage can lead to reduced working efficiency of the sweeper, even possibly causes equipment failure, and increases maintenance cost and downtime. Therefore, although the existing sweeper can realize sewage recycling, the risk of pipeline blockage exists, and the stability and the reliability of equipment are affected. Disclosure of Invention The invention aims to provide a sweeper and a sewage circulation method for the sweeper, so as to solve the technical problem that the existing sweeper is insufficient in self-cleaning capacity. In a first aspect, the invention provides a sweeper, which comprises a clean water tank, a sewage pump, a filtering mechanism, a sewage sucking mechanism and a flushing mechanism; The sewage sucking mechanism is connected with the sewage tank and used for sucking sewage on the ground into the sewage tank; the sewage pump is connected between the sewage tank and the filtering mechanism and used for inputting water in the sewage tank into the filtering mechanism, and a first valve body is arranged between the sewage tank and the sewage pump; The filtering mechanism comprises a clear water outlet and a waste liquid outlet, wherein the clear water outlet is connected with the clear water tank, and a third valve body is arranged between the clear water outlet and the clear water tank; the clear water tank is connected with the inlet of the sewage pump, and a fifth valve body is arranged between the clear water tank and the inlet of the sewage pump; the outlet of the sewage pump is connected with a spraying mechanism, the spraying mechanism is used for cleaning the interior of the sewage tank, and a sixth valve body is arranged between the sewage pump and the spraying mechanism. Further, the sweeper comprises a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a sixth pipeline, a seventh pipeline, a four-way, a first tee joint and a second tee joint, wherein the first valve body comprises a first valve and a second valve; one end of the first pipeline is connected with the sewage tank, and the other end of the first pipeline is connected with a first opening of the four-way valve; One end of the second pipeline is connected with the first opening of the first tee joint, and the other end of the second pipeline is connected with the second opening of the four-way joint; One end of the third pipeline is connected with the first opening of the second tee joint, and the other end of the third pipeline is connected with the third opening of the four-way joint; One end of the fourth pipeline is connected with the spraying mechanism, and the other end of the fourth pipeline is connected with a fourth opening of the four-way joint; One end of the fifth pipeline is connected with the second opening of the first tee joint, the other end of the fifth pipeline is connected with the outlet of the clear water tank, and the fifth valve body is arranged on the fifth pipeline; One end of the sixth pipeline is connected with the third opening of the first tee joint, and the other end of the sixth pipeline is connected with the inlet of the sewage pump; One end of the seventh pipeline is connected with the second opening of the second tee joint, the other end of the seventh pipeline is connected w