CN214194328U

CN214194328U - Water absorption system for cleaning vehicle and novel cleaning vehicle thereof

Info

Publication number: CN214194328U
Application number: CN202022160643.6U
Authority: CN
Inventors: 邢明杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-09-14
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses a water absorption system for a cleaning vehicle and a novel cleaning vehicle thereof, which relate to the technical field of road cleaning equipment, wherein the water absorption system comprises a roller frame, a sponge roller for absorbing sewage and an extrusion part positioned on one side of the sponge roller are fixed on the roller frame, the novel cleaning vehicle also comprises a horizontal water absorption pipe, a negative pressure tank connected with the horizontal water absorption pipe and a negative pressure generation part, a plurality of water absorption holes are arranged on the pipe wall of the horizontal water absorption pipe, the water absorption holes are just opposite to a water extrusion area between the sponge roller and the extrusion part, and the negative pressure generation part generates negative pressure to absorb the sewage extruded by the sponge roller into the negative pressure tank through the water absorption holes; the utility model discloses an use the sponge roller to adsorb road surface sewage, because the sponge can produce great deformation volume, can fully adsorb the sewage of hollow, prevent that hollow sewage from remaining, guaranteed the road surface cleanness; and set up the sewage of extrusion portion in with the sponge roller in time and extrude for the sponge roller has lower water content all the time, guarantees its adsorption effect under long-time work.

Description

Water absorption system for cleaning vehicle and novel cleaning vehicle thereof

Technical Field

The invention relates to the technical field of road cleaning equipment, in particular to a water absorption system for a cleaning vehicle and a novel cleaning vehicle thereof.

Background

With the rapid development of society, the requirements of residents on urban environment are higher and higher, and the sanitation cleaning vehicle is a main device for cleaning urban roads. In the cleaning process of the cleaning vehicle, the road surface is usually washed by water through a washing device, and then the washed sewage is sucked into a water storage tank on the vehicle body through negative pressure, so that the sewage is prevented from splashing around under the driving of the passing vehicle, for example, the invention patent with the patent number of 201110301193.0 and the name of 'cleaning vehicle'. However, as the asphalt pavement is uneven and has strong adhesive force, the negative pressure fan is required to generate very large suction force to completely absorb water, so that higher requirements are provided for the negative pressure fan. In addition, in the process of operation of the cleaning vehicle, in order to fully adsorb sewage, the traveling speed is very slow, so that the cleaning efficiency of the road is very low.

The invention patent number is '201710437020.9', the name is 'a circulating water utilization road sweeper with multi-stage cleaning function' is provided with a plurality of rotating rollers, sewage is absorbed by arranging water absorption sponge on the rotating rollers, but the rotating rollers also revolve in the rotation process, so that the pressure of the rotating rollers to the ground is lower, the action time is short, the adsorption effect is poor, and the plurality of rotating rollers are contacted with the ground one by one and have no condition that the rotating rollers are contacted with the ground, so that the adsorption effect of the rotating rollers to the sewage is not obvious.

Therefore, how to ensure the cleaning operation effect at every time, reduce the cleaning operation frequency and improve the cleaning efficiency is a real problem which needs to be solved urgently. Therefore, the efficient road cleaning vehicle is significant.

Disclosure of Invention

The invention aims to provide a water absorption system for a cleaning vehicle and a novel cleaning vehicle thereof, which are used for solving the problems in the prior art, and a sponge roller is used for fully absorbing sewage at a pothole on a road surface, so that the sewage residue at the pothole is prevented, and the cleanness of the road surface is ensured; and set up the sewage of extrusion portion in with the sponge roller in time and extrude for the sponge roller has lower water content all the time, guarantees its adsorption effect under long-time work.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a water absorption system for a cleaning vehicle, which is characterized by comprising a roller frame, wherein a sponge roller for absorbing sewage and a negative-pressure water absorption part positioned on one side of the sponge roller are fixed on the roller frame;

the water absorption system further comprises a negative pressure tank and a negative pressure generation part, the negative pressure tank is connected with the negative pressure water absorption part, and the negative pressure generation part generates negative pressure to absorb the sewage on the sponge roller into the negative pressure tank through the negative pressure water absorption part.

Preferably, the water absorption part is an arc water absorption groove, and a notch of the arc water absorption groove is opposite to the sponge roller; the arc-shaped water suction groove is connected with the negative pressure tank through a pipeline.

Preferably, it is right still to include the extrusion portion that the sponge roller produced the squeezing action, negative pressure water absorption portion is for the horizontal pipe that absorbs water, it is provided with a plurality of holes that absorb water to arrange on the pipe wall of horizontal pipe to absorb water, it is just right to absorb water the hole sponge roller with crowded water region between the extrusion portion, negative pressure production portion produces the negative pressure will the sewage that the sponge roller was extruded passes through the hole that absorbs water inhales in the negative pressure jar.

Preferably, the pressing part comprises a pressing roller or a wiper blade; the sponge roller is extruded at the edge of the water scraping plate, and the water scraping plate and the sponge roller are isometric and are obliquely arranged.

Preferably, a transmission mechanism is arranged between the sponge roller and the squeezing roller, and the transmission mechanism enables the sponge roller and the squeezing roller to synchronously and reversely rotate; the transmission mechanism comprises a driving wheel and a driven wheel, the driving wheel is coaxially arranged with the sponge roller, the driven wheel is coaxially arranged with the squeezing roller, and the driving wheel is in transmission connection with the driven wheel.

Preferably, the sponge roller includes the roll body and sets up the sponge on roll body surface, be provided with the hindrance on the roll body outer wall the sponge produces the embedding structure of radial movement, embed the structure outer wall with the confession has in the region between the roll body outer wall the cavity of burying that the sponge was buried.

Preferably, the squeezing roller is equal to the sponge roller in length, and the diameter of the squeezing roller is smaller than that of the sponge roller; the squeezing roller enables the sponge to generate 1-3 cm compression deformation; the height of the squeeze roller is consistent with that of the sponge roller, so that the squeeze roller is guaranteed not to be contacted with the ground all the time.

Preferably, the length of the horizontal water suction pipe is equal to that of the sponge roller; and suction ports are arranged at two ends of the water suction transverse pipe and are connected with the negative pressure tank through pipelines.

The invention also discloses a novel cleaning vehicle which comprises a vehicle body, wherein a water storage tank, a flushing system and the water absorption system are arranged on the vehicle body, the water storage tank is divided into a water purification area communicated with the flushing system and a sewage area communicated with the water absorption system, the flushing system and the water absorption system are both positioned at the bottom of the water storage tank, and the flushing system is used for spraying water to the ground to flush the ground; the negative pressure tank is provided with a pumping part, and sewage in the negative pressure tank is sent into the sewage area under the action of the pumping part.

Preferably, a hydraulic lifting system for controlling the roller frame to lift is arranged on the vehicle body, the hydraulic lifting system comprises a hydraulic cylinder and a hydraulic pump station connected with the hydraulic cylinder, the end part of the hydraulic cylinder is fixed on the vehicle body, the end part of a piston rod is fixedly connected with the roller frame, and the hydraulic pump station is driven by a power system of the cleaning vehicle;

the negative pressure water absorption part is a water absorption transverse pipe, the water absorption transverse pipe is fixed on the roller frame, the water absorption transverse pipe and a pipeline between the negative pressure tanks comprise flexible pipes capable of being bent, and therefore the water absorption transverse pipe can follow the lifting of the roller frame.

Preferably, the device also comprises a front shield and a rear shield which are hinged on the roller frame, wherein two ends of the front shield and two ends of the rear shield are respectively fixed at two ends of the roller frame, the front shield and the rear shield are respectively hung on the vehicle body through connecting rods, the top ends of the two connecting rods are hinged with the vehicle body, and the bottom ends of the two connecting rods are respectively hinged with the front shield and the rear shield; when the roller frame descends, the front protective cover and the rear protective cover rotate around the hinged point of the front protective cover and the hinged point of the rear protective cover and the roller frame respectively, and the front protective cover and the rear protective cover are opened automatically; when the roller frame ascends, the front protective cover and the rear protective cover are automatically closed.

Preferably, the flushing system comprises a water spraying pipe positioned at the front end of the sponge roller and a high-pressure water pump for sending water in the water purifying area into the water spraying pipe; the spray pipe is horizontally arranged and is communicated with a plurality of nozzles arranged at the bottom of the spray pipe; the inner chamber of nozzle is the horn mouth structure, the great diameter end of horn mouth structure with the spray pipe is connected, and less diameter end intercommunication water jet, the water jet cross-section is "one" style of calligraphy that the level set up, just water jet spun water inclines down along the vehicle direction of travel.

Compared with the prior art, the invention has the following technical effects:

1. according to the invention, the sponge roller is used for adsorbing the road surface sewage, and the sponge can generate a larger deformation amount, so that the sewage in the hollow part can be fully adsorbed, the sewage adsorption capacity is improved, the residual sewage in the hollow part is prevented, and the cleanness of the road surface is ensured;

2. the squeezing part is arranged to squeeze out the sewage in the sponge roller in time, so that the sponge roller always has lower water content, the adsorption effect of the sponge roller under long-time work is ensured, the water in the sponge roller is gathered in the water squeezing area between the sponge roller and the squeezing part after being squeezed out, and is more easily adsorbed by the transverse water absorbing pipe, the power requirement on the negative pressure generating part is reduced, and the cost can be obviously reduced;

3. according to the invention, the sponge is connected with the roller body through the embedded cavity, when the sponge has a roller releasing trend, the movement trend can be decomposed into a trend of moving along the radial direction and moving along the circumference of the roller body, and the embedded structure is fixed with the roller body and can limit the circumferential direction of the sponge to prevent the sponge from moving along the circumference; and under the prerequisite of guaranteeing that the sponge can not produce the roller of taking off, can increase the diameter of sponge roller to promote the holistic functioning speed of cleaning cart, thereby further improve clean efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic view of the assembly structure of a water absorption system;

FIG. 2 is a schematic structural view of a front shield and a rear shield provided on a roll stand;

FIG. 3 is a schematic structural view of a horizontal water absorbing pipe;

FIG. 4 is a bottom view of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4;

FIG. 6 is a schematic cross-sectional view of a sponge roller with a riser on the roller body;

FIG. 7 is a schematic view of a roller body with risers;

FIG. 8 is a partial cross-sectional view from another perspective of FIG. 6;

FIG. 9 is a schematic cross-sectional view of a sponge roller with a wedge-shaped fixing block arranged on a roller body;

FIG. 10 is a schematic view of a roller body with a wedge-shaped fixing block;

FIG. 11 is a schematic cross-sectional view of a sponge roll with rivets on the roll body;

FIG. 12 is a schematic view of a roll body with rivets;

FIG. 13 is a partial cross-sectional view from another perspective of FIG. 11;

FIG. 14 is a schematic view of the cleaning vehicle assembly;

FIG. 15 is a schematic view of the interior structure of the assembly of the cleaning vehicle;

FIG. 16 is a schematic view of the flushing system assembly;

wherein, 1, a roller frame; 2. a sponge roller; 3. a squeeze roll; 4. a horizontal water suction pipe; 5. a negative pressure tank; 6. a negative pressure fan; 7. a driving wheel; 8. a driven wheel; 9. a slurry pump; 10. a hydraulic cylinder; 11. a roller body; 12. a sponge; 13. a vertical plate; 14. a through hole; 15. a wedge-shaped fixed block; 16. a dovetail groove; 17. riveting; 18. a suction port; 19. a water suction hole; 20. a water storage tank; 21. a water purification area; 22. a sewage area; 23. a front shield; 24. A rear shield; 25. a connecting rod; 26. a water spray pipe; 27. a high pressure water pump; 28. a nozzle; 29. a flow control valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Example 1:

as shown in fig. 1 to 2, the embodiment provides a water absorption system for a cleaning vehicle, the water absorption system includes a roller frame 1, a sponge roller 2 for absorbing sewage and a squeezing portion located at one side of the sponge roller 2 and squeezing the sponge roller 2 are fixed on the roller frame 1, during water absorption operation, the sponge roller 2 contacts with the ground, rolls under the driving of the cleaning vehicle, and absorbs the sewage generated after washing the ground;

the water absorption system further comprises a water absorption transverse pipe 4, a negative pressure tank 5 and a negative pressure generation part, the water absorption transverse pipe 4 is arranged, the negative pressure tank 5 is connected with the water absorption transverse pipe 4, a plurality of water absorption holes 19 are formed in the pipe wall of the water absorption transverse pipe 4 in an arrayed mode, the water absorption holes 19 are right opposite to a water squeezing area between the sponge roller 2 and the squeezing part, and the negative pressure generation part generates negative pressure to enable sewage squeezed out of the sponge roller 2 to be sucked into the negative pressure tank 5 through the water absorption holes 19.

In the embodiment, the sponge roller 2 is used for adsorbing the road surface sewage, and the sponge 12 can generate a large deformation amount, so that the sewage in the hollow can be fully adsorbed, the residual sewage in the hollow can be prevented, and the sewage adsorption capacity can be improved; in addition, the squeezing part is arranged in the embodiment to squeeze out the sewage in the sponge roller 2 in time, so that the sponge roller 2 has lower water content all the time, the adsorption effect of the sponge roller under long-time work is ensured, the water in the sponge roller 2 is gathered in a squeezing area between the sponge roller 2 and the squeezing part after being squeezed out, and is more easily adsorbed by the water absorption transverse pipe 4, the power requirement on the negative pressure generating part is reduced, and the cost can be obviously reduced; therefore, the embodiment realizes the organic combination of the water absorption of the sponge roller 2 and the vacuum negative pressure water absorption, can obviously improve the adsorption capacity of the road surface sewage, also reduces the equipment requirement on the vacuum water absorption, and reduces the cost.

The negative pressure generating part is a negative pressure fan 6 in this embodiment, and a person skilled in the art can select a vacuum pump.

As shown in fig. 3 to 5, in order to enable the suction holes 19 of the transverse draft tube 4 to be closer to the water squeezing area, the cross-sectional area of the transverse draft tube is trapezoidal in this embodiment, and the suction holes 19 are provided on the top surface of the trapezoid with a smaller length.

It will be understood by those skilled in the art that the wringing area is a contact position of the sponge roll 2 with the squeezing portion, and can form a sink for temporarily storing the sewage.

In the embodiment, the extrusion part is a water scraping plate or an extrusion roller 3, the sponge roller 2 is extruded at the edge of the water scraping plate, and the water scraping plate and the sponge roller 2 are equal in length and are obliquely arranged; the structure of the water scraping plate is simpler than that of the squeezing roller 3, but after the water scraping plate acts on the sponge roller 2, the sponge 12 on the surface of the sponge roller 2 is easily scratched, and the service life of the sponge roller 2 is shortened, therefore, in the embodiment, the squeezing roller 3 is preferably used as a main component of the squeezing part, a transmission mechanism is arranged between the sponge roller 2 and the squeezing roller 3, the transmission mechanism comprises a driving wheel 7 coaxially arranged with the sponge roller 2 and a driven wheel 8 coaxially arranged with the squeezing roller 3, and the driving wheel 7 is in transmission connection with the driven wheel 8, so that the sponge roller 2 and the squeezing roller 3 rotate reversely at the same time; in this embodiment, the driving wheel 7 and the driven wheel 8 may be both gears, and the transmission connection mode is gear tooth engagement.

For guaranteeing good clean effect, sponge roller 2 can produce stronger effort between can and the road surface in the in-service use process, and the sponge 12 volume grow after moist, the texture becomes soft, under the effect of stronger external force, sponge 12 can produce great deformation, produces the phenomenon of taking off the roller easily, influences clean effect, is in for a long time and takes off the roller state and will lead to sponge 12 further to warp, makes sponge 12 break away from 11 surfaces of roll body completely, makes sponge roller 2 inefficacy. The existing sponge roller 2 is generally formed by bonding a roller body 11 and a sponge 12 by glue, so that the bonding strength of the roller body and the sponge is enhanced, and the bonding strength is greatly reduced after the glue is soaked in water, so that the bonding effect is not obvious.

As shown in fig. 6 to 13, the sponge roller 2 of the present embodiment includes a roller body 11 and a sponge 12 disposed on the surface of the roller body 11, an embedding structure is disposed on the outer wall of the roller body 11 to prevent the sponge 12 from moving radially, and an embedding cavity for embedding the sponge 12 is disposed in the region between the outer wall of the embedding structure and the outer wall of the roller body 11.

When the sponge roller 2 is manufactured, the embedded structure is fixed on the outer wall of the roller body 11, then the roller body 11 with the embedded structure is placed in a forming die, then sponge 12 raw material liquid is poured into the die, the sponge 12 raw material liquid is fully filled in the embedded cavity, and after the sponge 12 is formed, the sponge roller 2 is obtained, and as the sponge 12 is partially located in the embedded cavity, radial displacement of the sponge 12 is prevented, so that the embedded structure can well fix the sponge 12.

Further, the embedding structure is a plurality of vertical plates 13 uniformly distributed on the roller body 11 along the circumference, the vertical plates 13 are provided with a plurality of through holes 14, and the through holes 14 form an embedding cavity, as shown in fig. 6-8;

or the embedded structure is a plurality of wedge-shaped fixed blocks 15 uniformly distributed on the roller body 11 along the circumference, a dovetail groove 16 is formed between the adjacent wedge-shaped fixed blocks 15, and in the embodiment, the structure with the narrow top and the wide bottom of the dovetail groove 16 forms an embedded cavity, as shown in fig. 9 to 10;

or the embedded structure is a plurality of rivets 17 welded on the surface of the roller body 11, and an embedded cavity is formed between the rivet head of the rivet 17 and the outer wall of the roller body 11, as shown in fig. 11-13;

of course, the embedded structure may also adopt other structural forms capable of generating an embedded cavity, which will not be described in detail herein.

In the embodiment, the sponge 12 is connected with the roller body 11 through the embedded cavity, when the sponge 12 has the tendency of roller falling, the movement tendency can be decomposed into the tendency of radial movement and circumferential movement along the roller body 11, and by arranging the embedded structure, on one hand, the embedded structure is fixed with the roller body 11, the circumferential direction of the sponge 12 can be limited, and the sponge 12 is prevented from circumferential movement, on the other hand, the embedded cavity formed between the embedded structure and the outer wall of the roller body 11 is used for limiting the radial direction of the sponge 12, and the sponge 12 is prevented from radial movement, so that the embedded structure can form a good fixing effect on the sponge 12, the connecting strength between the sponge 12 and the roller body 11 is enhanced, the phenomenon of roller falling cannot occur even when the sponge 12 is subjected to a large acting force, not only is the cleaning effect ensured, but also the service life of the sponge roller 2 is prolonged; and under the prerequisite of guaranteeing that sponge 12 can not produce the roller of taking off, can increase the diameter of sponge roller 2 to promote the holistic functioning speed of cleaning cart, thereby further improve clean efficiency.

In order to ensure the squeezing effect of the squeezing roller 3 on the sponge roller 2, in the embodiment, the squeezing roller 3 is as long as the sponge roller 2, and the diameter of the squeezing roller 3 is smaller than that of the sponge roller 2; preferably, the thickness of the sponge 12 in the embodiment is 2.5 cm-8 cm, and the squeezing roller 3 causes the sponge 12 to generate compression deformation of 1 cm-3 cm; the height of the squeeze roll 3 is consistent with that of the sponge roll 2, so that the squeeze roll 3 is guaranteed not to be contacted with the ground all the time.

As shown in fig. 2 to 3, in order to ensure that the horizontal water absorbing pipe 4 can sufficiently absorb the sewage in the squeezing area, the length of the horizontal water absorbing pipe 4 in this embodiment is equal to the length of the sponge roller 2, and in order to prevent the sewage in the squeezing area from flowing out from both ends, side baffles may be respectively disposed at positions of the roller frame 1 corresponding to both ends of the squeezing area, and the side baffles are respectively attached to the ends of the sponge roller 2 and the squeezing roller 3; and the two ends of the horizontal water absorbing pipe 4 are provided with suction ports 18, the suction ports 18 are connected with the negative pressure tank 5 through pipelines, when sewage in a water squeezing area is adsorbed, negative pressure generated at the two ends of the horizontal water absorbing pipe 4 is the largest, the sewage at the two ends of the water squeezing area is firstly sucked, and the sewage is prevented from flowing out along the edge of the water squeezing area too much.

Example 2:

only unlike embodiment 1, the horizontal water absorbing pipe 4 and the squeeze roll 3 are not provided in this embodiment; in this embodiment 2 one side of sponge roller is provided with the arc groove that absorbs water, the arc absorb water the groove with sponge roller 2 isometric and with sponge roller 2 between the surface have certain clearance, the arc absorb water the inner chamber in groove pass through pipeline and 5 intercommunications of negative pressure jar, utilize the vacuum negative pressure directly with the absorbent sewage suction negative pressure jar 5 of sponge roller 2 in.

Example 3:

as shown in fig. 14 to 16, the present embodiment provides a novel cleaning vehicle, which includes a vehicle body, wherein a water storage tank 20, a flushing system and the water absorption system described in embodiment 1 are disposed on the vehicle body, the water storage tank 20 is divided into a water purification area 21 communicated with the flushing system and a sewage area 22 communicated with the water absorption system, both the flushing system and the water absorption system are disposed at the bottom of the water storage tank 20, and the flushing system is used for spraying water to the ground to flush the ground; the negative pressure tank 5 is provided with a pumping part, and the sewage in the negative pressure tank 5 is sent into the sewage area 22 under the action of the pumping part.

The pumping part in the embodiment can be a mud pump 9; in this embodiment, the top of the water purification area 21 has a water inlet, and the bottom of the sewage area 22 also has a sewage outlet.

In the embodiment, a hydraulic lifting system for controlling the lifting of the roller frame 1 is arranged on the vehicle body, the hydraulic lifting system comprises a hydraulic cylinder 10 and a hydraulic pump station connected with the hydraulic cylinder 10, the end part of the hydraulic cylinder 10 is fixed on the vehicle body, the end part of a piston rod is fixedly connected with the roller frame 1, and the hydraulic pump station is driven by a power system of the cleaning vehicle;

in the actual use process, in order to ensure that the distance between the transverse water absorbing pipe 4 and the water squeezing area is not increased after the roller frame 1 descends, the transverse water absorbing pipe 4 is fixed on the roller frame 1 in the embodiment; because the negative pressure tank 5 is fixed, the length of a pipeline between the negative pressure tank 5 and the transverse water absorption pipe 4 can be bent and changed in length in the process that the transverse water absorption pipe 4 is raised along with the roller frame 1, and in order to ensure that a water absorption system can normally work, a flexible pipe capable of being bent is arranged on the pipeline between the transverse water absorption pipe 4 and the negative pressure tank 5, so that the transverse water absorption pipe 4 can be raised and lowered along with the roller frame 1; the length and the arrangement position of the specific hose can be determined by the skilled person according to the actual situation.

In order to protect the sponge roller 2 which is not in a working state, the sponge roller further comprises a front shield 23 and a rear shield 24 which are hinged on the roller frame 1, two ends of the front shield 23 and two ends of the rear shield 24 are respectively fixed at two ends of the roller frame 1, the front shield 23 and the rear shield 24 are respectively hung on a vehicle body through connecting rods 25, the top ends of the two connecting rods 25 are hinged with the vehicle body, and the bottom ends of the two connecting rods 25 are respectively hinged with the front shield 23 and the rear shield 24; when the roller frame 1 descends, the front protective cover 23 and the rear protective cover 24 respectively rotate around the hinge points of the front protective cover and the rear protective cover and the roller frame 1, and are automatically opened; when the roller frame 1 is lifted, the front shield 23 and the rear shield 24 are automatically closed.

Further, the washing system in this embodiment includes a water spray pipe 26 located at the front end of the sponge roller 2 and a high pressure water pump 27 for feeding the water in the purified water region 21 into the water spray pipe 26; the spray pipe 26 is horizontally arranged and is communicated with a plurality of nozzles 28 arranged at the bottom of the spray pipe 26; the inner cavity of the nozzle 28 is of a bell mouth structure, the larger diameter end of the bell mouth structure is connected with the water spray pipe 26, the smaller diameter end is communicated with the water spray opening, the cross section of the water spray opening is horizontally arranged in a straight shape, and water sprayed by the water spray opening inclines downwards along the running direction of the vehicle.

In the embodiment, the water spray pipe 26 extends into the roller frame 1, is positioned in front of the squeeze roller 3 and is exposed from the bottom end of the roller frame 1, as shown in fig. 14; of course, the water spray pipe 26 may not extend into the roller frame 1, but may be located at the front end of the roller frame 1.

In order to control the amount of water sprayed, a flow control valve 29 is further provided in the pipe between the high-pressure water pump 27 and the water spray pipe 26 in this embodiment.

The adaptation according to the actual needs is within the scope of the invention.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A water absorption system for a cleaning vehicle is characterized by comprising a roller frame, wherein a sponge roller for absorbing sewage and a negative-pressure water absorption part positioned on one side of the sponge roller are fixed on the roller frame;

2. The water absorption system of claim 1 wherein the water absorption portion is an arc-shaped water absorption groove, and the notch of the arc-shaped water absorption groove faces the sponge roller; the arc-shaped water suction groove is connected with the negative pressure tank through a pipeline.

3. The water absorption system as claimed in claim 1, further comprising a squeezing portion for squeezing the sponge roller, wherein the negative pressure water absorption portion is a horizontal water absorption pipe, a plurality of water absorption holes are arranged on a pipe wall of the horizontal water absorption pipe, the water absorption holes are aligned with a water squeezing area between the sponge roller and the squeezing portion, and the negative pressure generation portion generates negative pressure to suck sewage squeezed by the sponge roller into the negative pressure tank through the water absorption holes.

4. The water intake system of claim 3, wherein the pressing section comprises a pressing roller or a wiper blade; the sponge roller is extruded at the edge of the water scraping plate, and the water scraping plate and the sponge roller are isometric and are obliquely arranged.

5. The water absorption system as claimed in claim 3, wherein a transmission mechanism is arranged between the sponge roller and the squeezing roller, and the transmission mechanism enables the sponge roller and the squeezing roller to synchronously rotate in opposite directions; the transmission mechanism comprises a driving wheel and a driven wheel, the driving wheel is coaxially arranged with the sponge roller, the driven wheel is coaxially arranged with the squeezing roller, and the driving wheel is in transmission connection with the driven wheel.

6. The water absorption system as claimed in claim 1, wherein the sponge roller comprises a roller body and sponge arranged on the surface of the roller body, an embedded structure for preventing the sponge from moving radially is arranged on the outer wall of the roller body, and an embedded cavity for embedding the sponge is arranged in the region between the outer wall of the embedded structure and the outer wall of the roller body.

7. The water intake system of claim 5, wherein the squeeze roll is of equal length to the sponge roll and has a diameter less than the diameter of the sponge roll; the squeezing roller enables the sponge to generate 1-3 cm compression deformation; the height of the squeeze roller is consistent with that of the sponge roller, so that the squeeze roller is guaranteed not to be contacted with the ground all the time.

8. The water absorption system of claim 3 wherein the length of the horizontal water absorption tube is equal to the length of the sponge roller; and suction ports are arranged at two ends of the water suction transverse pipe and are connected with the negative pressure tank through pipelines.

9. A novel cleaning vehicle is characterized by comprising a vehicle body, wherein a water storage tank, a flushing system and the water suction system according to any one of claims 1 to 8 are arranged on the vehicle body, the water storage tank is divided into a water purification area communicated with the flushing system and a sewage area communicated with the water suction system, the flushing system and the water suction system are both positioned at the bottom of the water storage tank, and the flushing system is used for spraying water to the ground to flush the ground; the negative pressure tank is provided with a pumping part, and sewage in the negative pressure tank is sent into the sewage area under the action of the pumping part.

10. The novel cleaning vehicle according to claim 9, wherein a hydraulic lifting system for controlling the roller frame to lift is arranged on the vehicle body, the hydraulic lifting system comprises a hydraulic cylinder and a hydraulic pump station connected with the hydraulic cylinder, the end part of the hydraulic cylinder is fixed on the vehicle body, the end part of a piston rod is fixedly connected with the roller frame, and the hydraulic pump station is driven by a power system of the cleaning vehicle;

11. The novel cleaning vehicle as claimed in claim 10, further comprising a front shield and a rear shield hinged to the roller frame, wherein two ends of the front shield and the rear shield are respectively fixed to two ends of the roller frame, the front shield and the rear shield are respectively suspended on the vehicle body through connecting rods, top ends of the two connecting rods are hinged to the vehicle body, and bottom ends of the two connecting rods are respectively hinged to the front shield and the rear shield; when the roller frame descends, the front protective cover and the rear protective cover rotate around the hinged point of the front protective cover and the hinged point of the rear protective cover and the roller frame respectively, and the front protective cover and the rear protective cover are opened automatically; when the roller frame ascends, the front protective cover and the rear protective cover are automatically closed.

12. The novel cleaning vehicle as claimed in claim 9, wherein the flushing system comprises a water spray pipe at the front end of the sponge roller and a high-pressure water pump for feeding water in the water purification area into the water spray pipe; the spray pipe is horizontally arranged and is communicated with a plurality of nozzles arranged at the bottom of the spray pipe; the inner chamber of nozzle is the horn mouth structure, the great diameter end of horn mouth structure with the spray pipe is connected, and less diameter end intercommunication water jet, the water jet cross-section is "one" style of calligraphy that the level set up, just water jet spun water inclines down along the vehicle direction of travel.