CN110258409B

CN110258409B - Pavement sweeping vehicle

Info

Publication number: CN110258409B
Application number: CN201910491323.8A
Authority: CN
Inventors: 肖庆麟; 龙亮; 张星明; 王泽彪; 周巡; 荣赞; 邓扬
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2021-01-12
Anticipated expiration: 2039-06-06
Also published as: CN110258409A

Abstract

The invention discloses a pavement sweeper, which comprises: the garbage suction and sweeping device comprises a frame, a control system arranged on the frame, and a garbage suction and sweeping device, a suction device, a dust removal device, a lifting device and a garbage can which are respectively connected with the control system, wherein the garbage suction and sweeping device comprises a suction nozzle and a sweeper which are arranged in an integrated mode. The garbage sucking and sweeping device is arranged below the electric chassis at the front part of the frame, the suction device is arranged in the middle of the frame, the dust removal device and the lifting device are arranged at the rear part of the frame, the dust removal device is arranged above the lifting device, and a suction nozzle, the suction device, the dust removal device and the garbage can of the garbage sucking and sweeping device are communicated in sequence. The sweeper is used for gathering the garbage on the road surface to the front of the suction nozzle. The suction nozzle is used for sucking the gathered garbage. The suction device is used for vacuumizing the suction nozzle and the garbage can and crushing the passing garbage. The dust removal device is used for removing dust of the passing garbage-containing airflow. The lifting device is used for lifting the garbage can up and down.

Description

Pavement sweeping vehicle

Technical Field

The invention relates to the technical field of garbage treatment, in particular to a pavement sweeper.

Background

At present, the urban main road in China basically realizes mechanical cleaning operation, but the urban auxiliary road and the sidewalk are narrow, so that a large-scale sweeper cannot enter for cleaning, manual cleaning is mainly adopted, the operation efficiency is low, a large number of branches and leaves fall onto the urban auxiliary road and the sidewalk especially in leaf-falling seasons, and if the branches and leaves cannot be cleaned in time, the leaves drift around, and the urban attractiveness is seriously affected.

In the prior art, a small road sweeper is used for sweeping urban auxiliary roads and sidewalks. The existing small-sized road sweeper mainly comprises a chassis, a cleaning device, a suction nozzle, a suction fan, a dust removal device, a dustbin and a fan motor. The suction fan is driven by the fan motor to rotate at a high speed, air in the dustbin and the suction nozzle is sucked away, negative pressure is formed in the dustbin and the suction nozzle, the sweeping disc in the sweeping device rotates to gather garbage in the front of the suction nozzle, when the road sweeper moves forwards, the garbage is sucked into the inner cavity of the suction nozzle, is sucked to the dust removal device under the action of the negative pressure to be filtered and removed, then the solid garbage falls into the dustbin, and clean air flow is discharged into the atmosphere.

The existing small road sweeper has longer longitudinal and transverse lengths, complex structure, complex action process and high manufacturing cost, and is not suitable for popularization and application of the small road sweeper; during operation, the dust is more, the environment is polluted, and the health of surrounding personnel is influenced; the garbage can is small in loading capacity, the garbage needs to be dumped to a specified place after being filled with the garbage every time, then the garbage can returns to continue to operate, and a large amount of time is occupied by the reciprocating operation, so that the effective operation time is short, and the energy consumption utilization rate is low.

Disclosure of Invention

The invention provides a pavement sweeper, which aims to solve the technical problems of long longitudinal and transverse lengths, complex structure, high manufacturing cost, short effective operation time and low energy consumption utilization rate of the existing pavement sweeper.

The technical scheme adopted by the invention is as follows:

a pavement sweeping vehicle comprising: the garbage suction and sweeping device comprises a frame, a control system arranged on the frame, and a garbage suction and sweeping device, a suction device, a dust removal device, a lifting device and a garbage can which are respectively connected with the control system, wherein the garbage suction and sweeping device comprises a suction nozzle and a sweeper which are arranged in an integrated manner; the garbage suction and sweeping device is arranged below the electric chassis at the front part of the frame, the suction device is arranged in the middle of the frame, the dust removal device and the lifting device are arranged at the rear part of the frame, the dust removal device is positioned above the lifting device, the garbage can is detachably supported on the lifting device, and a suction nozzle of the garbage suction and sweeping device, the suction device, the dust removal device and the garbage can are sequentially communicated; the sweeper is used for rotating under the control of the control system to gather the garbage on the road surface in front of the suction nozzle; the suction nozzle is used for sucking the gathered garbage under the action of the suction device; the suction device is used for vacuumizing the suction nozzle and the garbage can under the control of the control system and crushing the passing garbage so that the garbage sucked by the suction nozzle is crushed by the suction device and dusted by the dust removal device and then enters the garbage can; the dust removal device is used for removing dust of the passing garbage-containing airflow under the control of the control system so that solid garbage falls into the garbage can and the dust-removed clean airflow is discharged into the atmosphere; the lifting device is used for lifting the garbage can up and down under the control of the control system and enabling the garbage can to be always in sealed communication with the discharge end of the dust removal device in the operation process.

Furthermore, the garbage sucking and sweeping device also comprises a connecting seat and a lifting driving mechanism which are fixedly connected with the frame; the suction nozzle is movably connected to the connecting seat; the sweeper comprises two sweeping disks and a connecting mechanism, wherein the two sweeping disks are respectively connected with a control system to rotate relatively under the control of the control system so as to gather garbage on a road surface towards the suction nozzle; the connecting end of the lifting driving mechanism is connected with the frame, the driving end of the lifting driving mechanism is connected with the suction nozzle, and the lifting driving mechanism is further connected with the control system so as to drive the suction nozzle to lift relative to the connecting seat along a fixed track under the control of the control system.

Furthermore, the connecting mechanism comprises a mounting support rod fixedly connected with the suction nozzle and two groups of connecting components arranged at two ends of the mounting support rod respectively, and each group of connecting components comprises a vertical swing arm, a transverse swing arm, a jacking adjusting piece and a pre-tightening spring; the first end of the vertical swing arm is hinged with the free end of the mounting support rod in the horizontal plane, so that the vertical swing arm can rotate around the hinge shaft arranged horizontally in the vertical plane; the first end of the transverse swing arm is hinged with the second end of the vertical swing arm in a vertical plane, so that the transverse swing arm can rotate around a vertically arranged hinge shaft in a horizontal plane; the sweeping disc is fixed with the second end of the transverse swing arm which is correspondingly arranged; the jacking adjusting piece is arranged at the free end correspondingly arranged on the mounting support rod, the height of the jacking adjusting piece in a vertical plane is adjustable, and the top of the jacking adjusting piece abuts against the first end of the correspondingly arranged vertical swing arm; two ends of the pre-tightening spring are respectively connected with the vertical swing arm and the transverse swing arm so as to apply the pre-tightening force of the transverse swing arm rotating towards the front direction of the sweeping vehicle and buffer or avoid the external acting force applied to the sweeping disc.

Furthermore, the suction nozzle comprises a suction nozzle body, a connecting rod mechanism and a mounting seat; the suction nozzle body is communicated with the suction device so as to suck the garbage gathered by the sweeping disc under the action of the suction device; the connecting rod mechanism is respectively connected with the connecting seat and the suction nozzle body so as to movably connect the suction nozzle body with the connecting seat; the mounting seat is fixedly connected with the suction nozzle body, the driving end of the lifting driving mechanism and the mounting support rod are respectively and fixedly connected with the mounting seat, and the lifting driving mechanism is used for driving the mounting seat to drive the suction nozzle body and the sweeper to move up and down along a fixed track relative to the connecting seat.

Further, the suction nozzle body comprises a suction nozzle body with an inner cavity; the bottom of the suction nozzle body is provided with a main suction port which is communicated with the inner cavity and is used for sucking gathered garbage into the inner cavity, and the main suction port is connected with a first end cover used for sealing the main suction port; the top of the suction nozzle body is provided with a discharge port which is respectively communicated with the inner cavity and the suction device so as to discharge the garbage in the inner cavity out of the inner cavity; be equipped with the vice suction inlet with the inner chamber intercommunication on the lateral wall of suction nozzle body, reach the sucker rod of being connected with vice suction inlet is detachable, sucker rod and vice suction inlet intercommunication to move to required position department under sanitation personnel's operation in order to inhale the inner chamber with the rubbish of this department, vice suction inlet is connected with the second end cover that is used for sealed vice suction inlet.

Further, the dust removing device includes: the garbage bin comprises a frame, a garbage bin, a garbage inlet pipeline, a garbage containing airflow, an installation box, a garbage bin and a garbage bin, wherein the garbage containing airflow enters the garbage inlet pipeline; the filter hopper is arranged in the installation box, and is used for being matched with the installation box to form a vortex-shaped flow channel between the filter hopper and the installation box, so that the entering garbage-containing airflow is subjected to first-stage separation under the action of centrifugal force, the separated heavy garbage, large-particle-size garbage and part of middle-particle-size garbage with small and medium particle sizes fall into the garbage can, and the rest part of middle-particle-size garbage with small particle sizes enters an inner cavity of the filter hopper after passing through the filter hopper; the filter element group is arranged in the inner cavity of the filter hopper and used for carrying out secondary separation on the entering garbage-containing airflow, the filter element group is used for enabling the garbage-containing airflow to enter spirally to form cyclone so as to separate light garbage with medium and small particle sizes, and the filter element group is communicated with the inner cavity of the filter hopper so as to temporarily store the separated light garbage with medium and small particle sizes in the inner cavity of the filter hopper; and the filter is connected to the upper surface of the top plate of the mounting box and is respectively communicated with the filter core group and the atmosphere, so that the garbage-containing airflow discharged from the filter core group enters the filter for separation, and the clean airflow after the separation is discharged into the atmosphere.

Furthermore, the installation box is in a hollow box cover shape and comprises a box wall formed by enclosing a plurality of sections of arc plates and an upper cover plate connected to the top of the box wall, the opening end of the installation box faces downwards and is communicated with the garbage can in a sealing mode, the box wall is fixedly connected with a frame of the sweeper, the outflow end of the inflow pipeline is communicated with the box wall, and the upper cover plate is provided with an installation through hole for the filter hopper to penetrate through; the filter hopper comprises a bowl-shaped filter hopper body with two communicated ends, a mounting end cover connected to the opening end of the filter hopper body, a cylindrical baffle plate connected to the lower end face of the mounting end cover and arranged around the outside of the filter hopper body, and a self-resetting door assembly connected to the opening at the lower end of the filter hopper body; the filtering bucket body is inserted into the installation box to surround a vortex-shaped flow channel with the installation box, after an opening end of the filtering bucket body penetrates out of the installation through hole upwards, the installation end cover is detachably connected with the upper cover plate to seal the installation through hole, the cylindrical baffle is located between the filtering bucket body and the installation box and used for air flow diversion, it is guaranteed that one part of air flow entering the installation box does rotating motion in the vortex-shaped flow channel, the other part of air flow directly enters an inner cavity of the filtering bucket body, the self-resetting door assembly is used for automatically opening when light garbage with small and medium particle sizes stored in the filtering bucket body exceeds bearing weight, the light garbage with small and medium particle sizes falls into the garbage can, and the self-resetting closing is carried out after the light garbage with small and medium particle sizes.

Furthermore, a plurality of filtering through holes are formed in the side wall of the filtering hopper body, and the filtering through holes are used for allowing garbage-containing airflow to enter the inner cavity of the filtering hopper body; the filter element group is inserted into the inner cavity of the filter hopper body, and the top end of the filter element group is fixedly connected with the mounting end cover; the lower end of the filter hopper body is conical so as to temporarily store the light garbage with medium and small particle size filtered by the filter core group.

Further, filter core group includes many cyclone tubes that vertical interval set up, and each cyclone tube includes: the lower end of the conical pipe is conical and extends downwards to the bottom of the filter hopper body; the upper end of the hollow straight pipe is connected with the mounting end cover and extends upwards out of the mounting end cover to be communicated with the filter, and the lower end of the hollow straight pipe is axially inserted into the conical pipe from the upper end of the conical pipe; and the guide plate is arranged between the hollow straight pipe and the conical pipe, and the guide plate extends spirally along the length direction of the conical pipe so as to guide the garbage-containing airflow into the conical pipe spirally to form a rotational flow.

Further, the suction device includes a suction fan, a driving motor for driving the suction fan, a suction pipe for communicating the suction nozzle with the suction fan, and an air pipe for communicating the suction fan with the inflow duct, the suction fan includes: the fan shell is detachably connected with the frame, a garbage inlet and a garbage outlet which are communicated with the inner cavity of the fan shell are arranged on the fan shell, the garbage inlet is communicated with the suction pipe, and the garbage outlet is communicated with the air pipe; an impeller rotatably arranged is arranged in an inner cavity of the fan shell and connected with a driving end of a driving motor so as to rotate under the driving of the driving motor to crush garbage in the inner cavity of the fan shell.

Furthermore, the impeller comprises a wheel disc fixedly connected with the driving end of the driving motor, a plurality of blades which are arranged in a vortex shape are arranged on the wheel disc, and the blades are used for crushing the garbage in the rotating process of the wheel disc; the joint of each blade and the wheel disc is provided with a rib plate for reinforcing the connection strength of the blade and the wheel disc.

Further, the lifting device comprises a lifting frame and a lifting driving mechanism; the lifting frame is arranged on the frame in a vertically sliding manner along the height direction of the frame, a supporting platform for supporting the garbage can is horizontally arranged on the lifting frame, and a plurality of limiting plates which are used for abutting against the side wall of the garbage can on the supporting platform to limit the garbage can on the supporting platform are arranged on the supporting platform; the garbage can is supported on the supporting platform; the connecting end of the lifting driving mechanism is connected with the frame, and the driving end of the lifting driving mechanism is connected with the lifting frame so as to lift the lifting frame up and down under the control of the control system and enable the feeding end of the garbage can and the discharging end of the dust removal device to be always kept in sealed communication in the operation process.

The invention has the following beneficial effects:

in the pavement sweeper, the garbage sucking and sweeping device is arranged below the electric chassis at the front part of the frame, the suction device is arranged in the middle of the frame, the dust removal device and the lifting device are arranged at the rear part of the frame, the dust removal device is positioned above the lifting device, the garbage can is detachably supported on the lifting device, and a suction nozzle, the suction device, the dust removal device and the garbage can of the garbage sucking and sweeping device are sequentially communicated, so that the pavement sweeper is compact and reasonable in structural layout, the length and the width of the sweeper can be greatly shortened, the sweeper is more suitable for pavement sweeping, the structure is simple, the weight is light, a complex hydraulic system and a complex gas circuit system are not needed, and secondary pollution caused by hydraulic oil leakage is avoided;

the sweeper used for gathering the garbage on the road surface to the front of the suction nozzle and the suction nozzle used for sucking the gathered garbage are arranged in an integrated mode, and compared with the prior art that the sweeper and the suction nozzle are arranged in a split mode and are respectively connected with the driving mechanism, the garbage sweeping and sucking device is stable in structure, the working stability and efficiency of the device are improved, the structure of the sweeper can be simplified, the driving process of the sweeper is simple, the manufacturing cost of the sweeper is further reduced, and the sweeper can be further suitable for sweeping a sidewalk;

the suction device is not only used for vacuumizing the suction nozzle and the garbage can, but also used for crushing the garbage passing through, so that the garbage discharged from the suction nozzle is crushed by the suction device and then enters the dust removal device, the suction pipeline is effectively prevented from being blocked by the garbage with larger branches and leaves in the same volume, the labor intensity of sanitation workers in dredging and cleaning the blocked pipeline is reduced, the operation efficiency of the sweeper is improved, and the service life of the sweeper is prolonged;

the garbage enters the dust removal device after being crushed, so that the dust removal effect of the dust removal device is effectively improved, the raised dust caused by airflow emission is reduced, and meanwhile, the volume of the solid garbage separated by filtration is smaller, so that more garbage can accommodating space is not occupied, the operation time of the sweeper is further prolonged, and the garbage sweeping operation efficiency is improved;

set up hoisting device and promote the garbage bin from top to bottom so that the packing into of garbage bin with unload, adopted the mode that the garbage bin collected rubbish, compared in adopting the integral dustbin of connecting on the frame, the user only needs to change garbage bin or disposal bag and can continue the operation, need not to come and go the garbage field and emptys rubbish, really realizes high-efficient operation, and energy consumption high-usage.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of a pavement sweeper of the preferred embodiment of the present invention;

FIG. 2 is a schematic view of the spatial structure of the garbage sweeping and sucking device in FIG. 1;

FIG. 3 is a schematic view of the spatial arrangement of the sweeper of FIG. 2;

FIG. 4 is a cross-sectional front view of the suction nozzle of FIG. 2;

FIG. 5 is a schematic front view of the dust removing device, the lifting device and the garbage can shown in FIG. 1;

FIG. 6 is a schematic view showing the flow path of the dust removing process of the dust removing apparatus of FIG. 5;

FIG. 7 is a distribution diagram of the particles in the dust removing process of the dust removing device in FIG. 5;

FIG. 8 is a front view of the cyclone tube of FIG. 5;

FIG. 9 is a schematic view of the suction fan of FIG. 1 in a spatial configuration;

FIG. 10 is a cross-sectional side view schematic of FIG. 9;

fig. 11 is a cross-sectional front view structural schematic diagram of fig. 9.

Description of the figures

10. A connecting seat; 20. a suction nozzle; 21. a suction nozzle body; 211. a suction nozzle body; 2110. an inner cavity; 2111. a main suction opening; 2112. discharging; 2113. a secondary suction port; 212. a first end cap; 213. a front baffle; 214. a tailgate; 216. a traveling wheel; 217. a second end cap; 22. a link mechanism; 23. a first mounting seat; 30. a sweeper; 31. sweeping the disc; 32. a connecting mechanism; 321. mounting a support rod; 322. a vertical swing arm; 323. a transverse swing arm; 324. jacking an adjusting piece; 325. pre-tightening the spring; 40. a lifting drive mechanism; 41. mounting a support; 42. a lifting drive member; 50. a lifting device; 51. a hoisting frame; 52. a lift drive mechanism; 60. a dust removal device; 61. an inflow pipe; 62. installing a box; 63. a filter hopper; 631. a filter hopper body; 632. installing an end cover; 633. a cylindrical baffle; 634. a self-resetting door assembly; 64. filtering the filter element group; 641. a swirl tube; 6411. a tapered tube; 6412. a hollow straight tube; 6413. a baffle; 65. a filter; 66. a vibrator; 71. a suction fan; 711. a fan housing; 7111. a waste inlet; 7112. a waste outlet; 712. an impeller; 7121. a wheel disc; 7122. a blade; 7123. a rib plate; 713. overhauling the cover plate; 714. a second mounting seat; 715. a shock absorber; 72. a drive motor; 73. a straw; 74. an air duct; 80. a trash can; 90. a frame; 110. an electric chassis.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.

Referring to fig. 1, a preferred embodiment of the present invention provides a pavement sweeping vehicle, including: the garbage suction and sweeping device comprises a frame 90, a control system arranged on the frame 90, and a garbage suction and sweeping device, a suction device, a dust removal device 60, a lifting device and a garbage can 80 which are respectively connected with the control system, wherein the garbage suction and sweeping device comprises a suction nozzle 20 and a sweeper 30 which are arranged in an integrated mode. The garbage suction and sweeping device is arranged below the electric chassis 110 at the front part of the frame 90, the suction device is arranged at the middle part of the frame 90, the dust removal device 60 and the lifting device 50 are arranged at the rear part of the frame 90, the dust removal device 60 is positioned above the lifting device 50, the garbage can 80 is detachably supported on the lifting device 50, and the suction nozzle 20, the suction device, the dust removal device 60 and the garbage can 80 of the garbage suction and sweeping device are sequentially communicated. The sweeper 30 is adapted to rotate under the control of the control system to gather refuse from the road surface in front of the suction nozzle 20. The suction nozzle 20 is used for sucking the gathered garbage under the action of the suction device. The suction device is used for vacuumizing the suction nozzle 20 and the garbage can 80 under the control of the control system and crushing the passing garbage, so that the garbage sucked by the suction nozzle 20 enters the garbage can 80 after being subjected to crushing by the suction device and dust fall by the dust removal device 60. The dust removal device 60 is arranged to remove dust from the passing stream of air containing refuse under the control of the control system so that solid refuse falls into the refuse bin 80 and the cleaned stream of air after dust removal is discharged to the atmosphere. The lifting device 50 is used for lifting the garbage can 80 up and down under the control of the control system and enabling the garbage can 80 to be always in sealed communication with the discharge end of the dust removing device 60 in the operation process.

In the pavement sweeper, the garbage sucking and sweeping device is arranged below the electric chassis 110 at the front part of the frame 90, the suction device is arranged in the middle of the frame 90, the dust removal device 60 and the lifting device 50 are arranged at the rear part of the frame 90, the dust removal device 60 is positioned above the lifting device 50, the garbage can 80 is detachably supported on the lifting device 50, and the suction nozzle 20, the suction device, the dust removal device 60 and the garbage can 80 of the garbage sucking and sweeping device are sequentially communicated, so that the pavement sweeper is compact and reasonable in structural layout, beneficial to greatly shortening the length and the width of the sweeper, more suitable for pavement sweeping work, simple in structure, light in weight, free of a complex hydraulic system and a complex gas circuit system and capable of avoiding secondary pollution caused by hydraulic oil leakage; the sweeper 30 used for gathering the garbage on the road surface to the front of the suction nozzle 20 and the suction nozzle 20 used for sucking the gathered garbage are arranged in an integrated mode, and compared with the prior art that the sweeper 30 and the suction nozzle 20 are arranged in a split mode and the sweeper 30 and the suction nozzle 20 are respectively connected with the driving mechanism, the garbage sweeping and sucking device is stable in structure, is beneficial to improving the working stability and efficiency of the device, can simplify the structure of the sweeper, enables the driving process of the sweeper to be simple, further reduces the manufacturing cost of the sweeper, and enables the sweeper to be further suitable for sweeping a sidewalk; the suction device is not only used for vacuumizing the suction nozzle 20 and the garbage can 80, but also used for crushing the garbage passing through, so that the garbage discharged from the suction nozzle 20 is crushed by the suction device and then enters the dust removal device 60, the suction pipeline is effectively prevented from being blocked by the garbage with larger branches and leaves in the same volume, the labor intensity of sanitation workers in dredging and cleaning the blocked pipeline is reduced, the operation efficiency of the sweeper is improved, and the service life of the sweeper is prolonged; on the other hand, the garbage enters the dust removal device 60 after being crushed, so that the dust removal effect of the dust removal device 60 is effectively improved, the raised dust caused by airflow emission is reduced, and meanwhile, the volume of the solid garbage separated by filtration is smaller, so that more garbage can accommodating space cannot be occupied, the operation time of the sweeper is further prolonged, and the operation efficiency of garbage cleaning is improved; set up hoisting device 50 and promote garbage bin 80 from top to bottom so that packing into of garbage bin 80 with unload, adopted the mode that the garbage bin collected rubbish, compare in adopting the integral dustbin of connecting on the frame, the user only need change garbage bin or disposal bag can continue the operation, need not to come and go the garbage dump and empty rubbish, really realizes high-efficient operation, energy consumption high-usage.

Optionally, as shown in fig. 2, the garbage sucking and sweeping device further includes a connecting seat 10 and a lifting driving mechanism 40 for fixedly connecting with the frame 90. The suction nozzle 20 is movably connected to the connection holder 10. The sweeper 30 is fixedly connected to the suction nozzle 20, the sweeper 30 comprises two sweeping disks 31 and a connecting mechanism 32, the two sweeping disks 31 are respectively connected with the control system to rotate relatively under the control of the control system so as to gather garbage on the road surface towards the suction nozzle 20, the connecting mechanism 32 is fixedly connected with the suction nozzle 20, the connecting mechanism 32 is used for connecting the two sweeping disks 31 and enabling the heights of the two sweeping disks 31 to be adjustable in a vertical plane, and the two sweeping disks 31 rotate around a fixed point in a horizontal plane to buffer or avoid external acting force when being subjected to external acting force. The connection end of the lifting driving mechanism 40 is connected with the frame 90, the driving end of the lifting driving mechanism 40 is connected with the suction nozzle 20, and the lifting driving mechanism 40 is further connected with the control system to drive the suction nozzle 20 to move up and down along a fixed track relative to the connection base 10 under the control of the control system.

In the garbage sweeping and sucking device of the present invention, the sweeper 30 comprises two sweeping discs 31 and a connecting mechanism 32, the two sweeping discs 31 are used for being rotated under the control of the control system to gather the garbage on the road surface, the connecting mechanism 32 is used for connecting the two sweeping discs 31, the height of the two sweeping discs 31 in the vertical plane is adjustable, and the two sweeping discs 31 are rotated around fixed points in the horizontal plane under the action of the external acting force to buffer or avoid the external acting force, so that the height of the sweeping discs 31 in the vertical plane is adjustable under the action of the connecting mechanism 32, and the sweeping discs 31 can be rotated around fixed points in the horizontal plane to buffer or avoid the external acting force under the action of the external acting force to avoid the influence of the external acting force on the operation of the sweeping discs 31, and compared with the prior art, the two sweeping discs are respectively connected with a driving mechanism for driving the sweeping discs to act in the vertical plane and a driving mechanism for acting in the horizontal plane, the sweeper 30 of the present invention is simple in structure and simple in action process; the sweeper 30 and the suction nozzle 20 are connected into a whole in a fixed connection mode, so that the garbage sweeping and sucking device is stable in structure and beneficial to improving the working stability and efficiency of the device; the sweeper 30 and the suction nozzle 20 are connected into a whole in a fixed connection mode, the driving end of the lifting driving mechanism 40 is connected with the suction nozzle 20, when the lifting driving mechanism 40 controls the suction nozzle 20 to move up and down along a fixed track relative to the connecting seat 10 under the action of a control system, the sweeper 30 moves up and down synchronously along with the suction nozzle 20, and the lifting movement of the garbage sweeping device in a vertical plane is achieved.

Alternatively, as shown in fig. 3, the connection mechanism 32 includes a mounting support rod 321 fixedly connected to the suction nozzle 20, and two sets of connection members respectively disposed at two ends of the mounting support rod 321, each connection member including a vertical swing arm 322, a horizontal swing arm 323, a lifting adjuster 324, and a pretension spring 325. The first end of the vertical swing arm 322 is hinged to the free end of the mounting support rod 321 in the horizontal plane, so that the vertical swing arm 322 rotates around the hinge shaft in the horizontal plane. A first end of the transverse swing arm 323 is hinged in a vertical plane with a second end of the vertical swing arm 322, such that the transverse swing arm 323 is rotatably disposed in a horizontal plane about a vertically disposed hinge shaft. The sweeping disk 31 is fixed with the second end of the transverse swing arm 323 which is correspondingly arranged. Because the vertical swing arm 322 can rotate in the vertical plane around the hinge shaft horizontally arranged, and the horizontal swing arm 323 can rotate in the horizontal plane around the hinge shaft vertically arranged, so that when the sweeping disc 31 is acted by external forward and backward thrust in the process of the forward movement of the sweeper, the sweeping disc 31 can bounce up and down in the vertical plane by taking the hinged point of the vertical swing arm 322 and the hinged point of the mounting support rod 321 as a fulcrum, and meanwhile, the sweeping disc 31 also rotates in the horizontal plane by taking the hinged point of the horizontal swing arm 323 and the hinged point of the vertical swing arm 322 as a center, so that the acting force acting on the sweeping disc 31 is buffered or avoided, and the rigid collision of the sweeping disc 31 and the external acting force.

Further, as shown in fig. 3, the jacking adjusting member 324 is disposed at a free end of the mounting support rod 321, and a height of the jacking adjusting member 324 in a vertical plane is adjustable, and a top of the jacking adjusting member 324 abuts against a first end of the vertical swing arm 322 disposed correspondingly. Specifically, the jacking adjuster 324 is a jacking bolt, which is vertically disposed and threadedly connected to the free end of the corresponding mounting support rod 321, and the top of the jacking bolt abuts against the corresponding vertical swing arm 322. By rotating the jacking bolt, the vertical swing arm 322 can rotate around the hinge point hinged with the mounting support rod 321, so that the height position of the second end of the transverse swing arm 323 can be adjusted, and finally the height of the sweeping disc 31 in the vertical plane can be adjusted. Two ends of the pretightening spring 325 are respectively connected with the vertical swing arm 322 and the transverse swing arm 323 to apply pretightening force for the transverse swing arm 323 to rotate towards the front direction of the sweeping vehicle so as to buffer or avoid external acting force applied to the sweeping disc 31. When the sweeping disk 31 is acted by the external forward and backward thrust, the direction of the external thrust is opposite to the direction of the pretightening force of the pretightening spring 325, and the sweeping disk 31 can rotate backward around the hinged point hinged with the vertical swing arm 322 along with the transverse swing arm 323 to buffer or avoid the action of the external thrust, so that the rigid collision between the sweeping disk 31 and the external thrust is prevented. When the external pushing force is reduced or disappears, the sweeping disc 31 can rotate forwards around the hinge point along with the transverse swing arm 323 under the action of the pulling force of the pre-tightening spring 325 so as to restore to the early state, and the avoiding movement of the sweeping disc 31 is realized in the process.

Alternatively, as shown in fig. 2 and 4, the suction nozzle 20 includes a nozzle body 21, a link mechanism 22, and a first mount 23. The nozzle body 21 communicates with a suction device to suck the garbage gathered by the sweeping disk 31 by the suction device. When the garbage cleaning machine works, the sweeping disc 31 gathers the garbage to the front end of the suction nozzle body 21 or a suction area of the suction nozzle, and the garbage is directly sucked by the suction nozzle body 21 to form continuous action, so that incomplete cleaning and suction caused by external interference are reduced. The link mechanism 22 is respectively connected with the connecting seat 10 and the nozzle body 21 so as to movably connect the nozzle body 21 with the connecting seat 10. The first mounting seat 23 is fixedly connected with the suction nozzle body 21, the driving end of the lifting driving mechanism 40 and the mounting support rod 321 are respectively fixedly connected with the first mounting seat 23, and the lifting driving mechanism 40 is used for driving the first mounting seat 23 to drive the suction nozzle body 21 and the sweeper 30 to move up and down along a fixed track relative to the connecting seat 10.

Further, as shown in fig. 4, the link mechanism 22 includes two links disposed at two sides of the nozzle body 21, first ends of the two links are respectively hinged to the connecting seat 10, and second ends of the two links are respectively hinged to the first mounting seat 23. The connecting seat 10, the two connecting rods and the first mounting seat 23 form a parallelogram structure, when the first mounting seat 23 receives the lifting action force applied by the lifting driving mechanism 40, the first mounting seat 23 drives the suction nozzle body 21 and the sweeper 30 to synchronously lift relative to the connecting seat 10 along a fixed track.

In this alternative embodiment, as shown in FIG. 4, the nozzle body 21 includes a nozzle body 211 having an interior cavity 2110. The bottom of the suction nozzle body 211 is provided with a main suction port 2111 which is communicated with the inner cavity 2110 for sucking gathered garbage into the inner cavity 2110, and the main suction port 2111 is connected with a first end cap 212 for sealing the main suction port 2111. The top of the nozzle body 211 is provided with an outlet 2112 which is communicated with the cavity 2110 and the suction device respectively for discharging the garbage in the cavity 2110 out of the cavity 2110. In operation, the suction device vacuums the cavity 2110 and the garbage bin, and garbage gathered by the sweeping disc 31 firstly enters the cavity 2110 of the suction nozzle body 211 from the main suction port 2111 and then enters the garbage bin from the cavity 2110 through the discharge port 2112.

Further, as shown in fig. 4, a sub-suction port 2113 communicating with the inner cavity 2110 and a suction rod (not shown) detachably connected to the sub-suction port 2113 are further provided on an outer side wall of the suction nozzle body 211, and the suction rod communicates with the sub-suction port 2113 to be moved to a desired position by a sanitation worker to suck the garbage therein into the inner cavity 2110. A second end cap 217 for sealing the sub-suction port 2113 is attached to the sub-suction port 2113. Through the arrangement of the auxiliary suction port 2113 and the suction rod detachably connected with the auxiliary suction port 2113, sanitation workers can move the suction rod to suck the garbage at special positions such as corners of sidewalks, florists or drainage ditches and the like, the operation range of the small-sized sweeper is improved, and the labor intensity of the sanitation workers is reduced. When the main suction port 2111 is operated, the sub-suction port 2113 is closed by the second cap 217, and air flow and garbage enter the inner cavity 2110 of the suction nozzle body 211 through the main suction port 2111 and are finally discharged out of the suction nozzle body 211 through the discharge port 2112. When the secondary suction port 2113 is operated, the primary suction port 2111 is closed by the first end cap 212, and airflow and debris enter the secondary suction port 2113 through the suction wand, then enter the internal chamber 2110 of the nozzle body 211, and finally exit the nozzle body 211 through the discharge port 2112.

Preferably, as shown in fig. 4, the nozzle body 21 further includes a front baffle 213 disposed perpendicular to the forward moving direction of the sweeper truck, a rear baffle 214 disposed opposite to the front baffle 213 and behind the front baffle 213, and a plurality of side plates connecting the front baffle 213 and the rear baffle 214. The periphery of main suction opening 2111 is enclosed to preceding baffle 213, backplate 214 and polylith curb plate, and the top of preceding baffle 213, backplate 214 and polylith curb plate respectively with the suction nozzle body 211 of main suction opening 2111 periphery fixed connection, the bottom of preceding baffle 213, backplate 214 and polylith curb plate extends towards the road surface respectively. In the embodiment of the preferred embodiment, the front baffle 213, the rear baffle 214 and the side plates are all plastic plates and have wear resistance so as to be suitable for contacting with different garbage, stones or the ground and not easy to damage, and the bottom end of the front baffle 213 is inclined backward toward the front moving direction of the sweeper so as to facilitate the garbage to enter the main suction port 2111 through the gap between the front baffle 213 and the ground. The back plate 214 and side plates serve to restrict the flow of air from the periphery of the back plate 214 and side plates into the main suction port 2111.

Further, as shown in fig. 4, the nozzle body 21 further includes a traveling wheel 216, the traveling wheel 216 is configured to be supported on the ground in a rolling manner, and the traveling wheel 216 is connected to the first mounting base 23. Preferably, a waist-shaped hole extending in the vertical direction is formed on the first mounting seat 23, the walking wheel 216 is adjustably connected to the first mounting seat 23 by a connecting bolt penetrating through the waist-shaped hole, and further, the height of the walking wheel 216 in the vertical direction is adjustable. And the gap between the front baffle 213, the rear baffle 214 and the side plate and the ground can be adjusted by adjusting the connection position of the travelling wheel 216 relative to the first mounting seat 23, so as to adjust the suction effect of the suction nozzle body 211 on the garbage.

Alternatively, as shown in fig. 4, the lifting driving mechanism 40 includes a mounting base 41 fixedly connected to the frame of the sweeper and a vertically arranged lifting driving member 42. The connecting end of the lifting driving member 42 is fixed to the mounting support 41, and the driving end of the lifting driving member 42 is fixed to the first mounting base 23. In this alternative embodiment, the lift actuator 42 is one of a drive cylinder, a hydraulic motor, and an electric push rod.

Alternatively, as shown in fig. 1 and 5, the dust removing device 60 includes an inlet duct 61 for the garbage-containing airflow to enter, an outlet end of the inlet duct 61 is communicated with a mounting box 62, and the mounting box 62 is connected with the frame 90 and is communicated with the garbage bin 80. The garbage can also comprises a filter hopper 63 which is arranged in the installation box 62, wherein the filter hopper 63 is used for being matched with the installation box 62 to form a vortex-shaped flow channel between the filter hopper 63 and the installation box 62, so that the entering garbage-containing airflow is subjected to first-stage separation under the action of centrifugal force, the separated heavy garbage, large-particle-size garbage and part of middle-particle-size garbage with middle and small particle sizes fall into the garbage can 80, and the rest part of middle-particle-size garbage with middle and small particle sizes enters the inner cavity of the filter hopper 63 after passing through the filter hopper 63. The garbage separating device further comprises a filter element group 64 which is arranged in the inner cavity of the filter hopper 63 and used for carrying out second-stage separation on the entering garbage-containing airflow, the filter element group 64 is used for enabling the garbage-containing airflow to enter spirally to form a rotational flow so as to separate the light garbage with the medium and small particle size, and the filter element group 64 is communicated with the inner cavity of the filter hopper 63 so that the separated light garbage with the medium and small particle size is temporarily stored in the inner cavity of the filter hopper 63. The dust-containing air flow after being separated by the filter element group 64 is subjected to a third-stage separation by the filter 65 to separate fine dust, and the filter 65 is connected to the upper surface of the top plate of the mounting box 62 and is respectively communicated with the filter element group 64 and the atmosphere, so that the dust-containing air flow discharged from the filter element group 64 enters the filter 65 to be separated, and the separated clean air flow is discharged into the atmosphere.

In the invention, heavy garbage, large-particle-size garbage, medium-particle-size garbage and light garbage with medium and small particle sizes and fine dust are artificially divided according to the following division rule: the heavy garbage is garbage with the mass m more than or equal to 10 g; the garbage with large particle size is garbage with the diameter D larger than phi 10 mm; the medium garbage with medium and small grain diameters is garbage with the diameter phi of 10 mu m and the diameter D of less than or equal to phi 10mm and the mass m of more than or equal to 1 g; the medium and small particle size light garbage is garbage with the diameter phi 10 mu m which is more than or equal to D which is less than or equal to phi 10mm and the mass m which is less than 1 g; the fine dust is garbage with the diameter D less than or equal to phi 10 mu m, and the dust diameter D in the discharged airflow (clean air) is less than or equal to phi 5 mu m.

When the dust removing device 60 of the present invention works, first-stage operation dust removal is performed: the garbage-containing airflow to be filtered and dedusted firstly enters the inflow pipeline 61, then enters the vortex-shaped flow channel between the installation box 62 and the filter hopper 63 through the inflow pipeline 61, and rotates under the action of the vortex-shaped flow channel to generate centrifugal force, and then the garbage-containing airflow is subjected to first-stage separation under the action of the centrifugal force to separate heavy garbage, large-particle-size garbage and medium-particle-size garbage, wherein the heavy garbage and the large-particle-size garbage are distributed near the inner side wall of the installation box 62, the medium-particle-size garbage is distributed near the outer side wall of the filter hopper 63, the heavy garbage and the large-particle-size garbage fall into the garbage bin 80 communicated with the installation box 62 downwards along the inner side wall of the installation box 62, part of the medium-particle-size garbage with the medium particle-size garbage is blocked outside the filter hopper 63 and falls into the garbage bin 80 downwards along the outer side wall of the filter hopper 63, and the rest part of the medium-particle-size garbage with the medium, as shown in fig. 6 and 7; then, carrying out secondary operation dust removal: the garbage-containing air flow in the inner cavity of the filter hopper 63 spirally enters the filter element group 64 under the action of the filter element group 64 to form a rotational flow, the garbage-containing air flow is subjected to secondary separation under the rotational flow to separate light garbage with medium and small particle size, and the separated light garbage with medium and small particle size is temporarily stored in the inner cavity of the filter hopper 63, as shown in fig. 6 and 7; and finally, carrying out third-stage operation dust removal: the garbage-containing air flow discharged from the filter element group 64 is separated by the filter 65 to separate fine dust, the fine dust is retained in the filter 65, and the clean air flow filtered by the filter 65 is discharged to the atmosphere. The dust removing device 60 of the invention performs the third stage filtration and separation on the passing garbage-containing airflow, the garbage in the airflow is thoroughly separated, and the separation effect is good, so that the dust can not be raised when the airflow is discharged to the atmosphere, and further the surrounding environment and the physical health of personnel can not be influenced.

Optionally, as shown in fig. 5, the dust removing device 60 of the present invention further includes a vibrator 66 connected to the top of the filter 65, wherein the vibrator 66 is configured to generate vibration during operation to shake off fine dust in the filter 65, thereby improving the filtering effect of the filter 65. In an alternative embodiment, as shown in FIG. 5, the vibrator 66 is a small-sized high-frequency vibration motor, and the filter 65 is a plate filter or a cloth filter having a multi-layer filter net structure or other device capable of filtering fine dust. After the dust removal operation is stopped, the vibration motor is started to vibrate the plate filter, so that the fine dust filtered in the plate filter is vibrated down to drop into the filter hopper 63 below.

Optionally, as shown in fig. 5, the installation box 62 is in a hollow box cover shape, and includes a box wall formed by enclosing a plurality of sections of arc plates and an upper cover plate connected to the top of the box wall, the open end of the installation box 62 faces downward and is in sealed communication with the garbage can 80, the box wall is fixedly connected to the frame of the sweeper, the outflow end of the inflow pipe 61 is communicated with the box wall, and the upper cover plate is provided with an installation through hole for the filter hopper 63 to be installed in a penetrating manner. The filter hopper 63 includes a filter hopper body 631 with two ends communicating and having a bowl shape, an installation end cover 632 connected to an opening end of the filter hopper body 631, a cylindrical baffle 633 connected to a lower end surface of the installation end cover 632 and surrounding the filter hopper body 631, and a self-reset door assembly 634 connected to a lower opening of the filter hopper body 631. The filtering hopper body 631 is inserted into the installation box 62 to surround a vortex-shaped flow passage with the installation box 62, after an opening end of the filtering hopper body 631 penetrates through the installation through hole upwards, the installation end cover 632 is detachably connected with the upper cover plate to seal the installation through hole, the cylindrical baffle 633 is positioned between the filtering hopper body 631 and the installation box 62 to be used for air flow diversion, it is ensured that one part of air flow entering the installation box 62 is in rotary motion in the vortex-shaped flow passage, the other part of air flow directly enters an inner cavity of the filtering hopper body 631, and the self-reset door component 634 is used for automatically opening when light garbage with medium and small particle diameters stored in the filtering hopper body 631 exceeds bearing weight, so that the light garbage with medium and small particle diameters falls into the garbage can 80, and automatically resetting and closing after the light garbage with medium and small particle diameters falls.

Further, as shown in fig. 5, a plurality of filtering through holes are formed in the sidewall of the filtering hopper 631, and the filtering through holes are used for allowing the garbage-containing air flow to enter the inner cavity of the filtering hopper 631. The filter element group 64 is inserted into the inner cavity of the filter hopper body 631, and the top end of the filter element group 64 is fixedly connected with the mounting end cover 632. The lower end of the filter hopper body 631 is tapered to temporarily store the light garbage with small and medium particle sizes filtered by the filter core set 64. Specifically, the self-resetting door assembly 634 includes a torsion spring and a steel plate, one side of which is hinged with the filter hopper body 631; the torsion spring is installed on the hinge shaft where the steel plate is hinged to the filter bucket 631, and the torsion spring is used to make the steel plate close the lower opening of the filter bucket 631. Alternatively, self-reset door assembly 634 is a canvas tube or collapsible hose, the upper end of which communicates with the lower end opening of filter bucket 631, for preventing air flow from the canvas tube or collapsible hose up into the interior cavity of filter bucket 631. Alternatively, the self-resetting door assembly 634 includes an extension spring and a steel plate, one side of which is hinged to the filter hopper body 631, and the other side of which is connected with the extension spring, and the extension spring is used to make the steel plate close the lower end opening of the filter hopper body 631; alternatively, the self-resetting door assembly 634 includes a driving cylinder or oil cylinder and a steel plate, one side of the steel plate is hinged to the filter hopper body 631, and the other side of the steel plate is connected to the driving cylinder or oil cylinder, which is connected to the control device to close or open the lower end opening of the filter hopper body 631 by the steel plate under the action of the control device.

When the first-stage operation dust removal is performed, the garbage-containing air flow enters the spiral flow channel through the inflow pipeline 61 and generates a centrifugal force under the action of the spiral flow channel, the garbage-containing air flow performs first-stage separation under the action of the centrifugal force to separate heavy garbage, large-particle-size garbage and medium-particle-size garbage, the heavy garbage and the large-particle-size garbage are distributed near the outer annular wall of the spiral flow channel, the medium-particle-size garbage and the medium-particle-size garbage are distributed near the outer side wall of the filter hopper 63, the heavy garbage and the large-particle-size garbage fall into the garbage bin 80 along the outer annular wall of the spiral flow channel, part of the medium-particle-size garbage with the medium particle size is blocked outside the filter hopper 63 and falls into the garbage bin 80 along the outer side wall of the filter hopper 63, and the rest part of the medium-particle-size garbage with the medium particle size passes through the filter through.

Alternatively, as shown in fig. 5 and 8, the filter core assembly 64 includes a plurality of swirl tubes 641 vertically spaced apart, each swirl tube 641 includes a conical tube 6411, the conical tube 6411 is vertically disposed and communicates with each other at both ends, the lower end of the conical tube 6411 is conical and extends downward to the bottom of the filter hopper body 631, and the larger the distance from the lower end of the conical tube 6411 to the self-reset door assembly 634 is, the better the smaller the distance from the lower end of the conical tube 6411 is without structural limitation, the smaller and smaller particle size light garbage blown down from the self-reset door assembly 634 by the air current jetted from the lower end of the conical tube 6411 is prevented. The hollow straight pipe 6412 is vertically arranged, two ends of the hollow straight pipe 6412 are communicated, the upper end of the hollow straight pipe 6412 is fixed with the mounting end cover 632, extends upwards out of the mounting end cover 632 and is communicated with the filter 65, and the lower end of the hollow straight pipe 6412 is axially inserted into the conical pipe 6411 through the upper end of the conical pipe 6411. The garbage-containing air flow guiding device further comprises a flow guiding plate 6413 which is arranged between the hollow straight pipe 6412 and the conical pipe 6411, wherein the flow guiding plate 6413 extends spirally along the length direction of the conical pipe 6411 so as to guide garbage-containing air flow into the conical pipe 6411 spirally to form a rotational flow.

When the second-stage dust removal operation is carried out, the garbage-containing air flow firstly enters the inner cavity of the filter hopper body 631 from the filter through holes on the filter hopper body 631, then enters the tapered pipe 6411 from the gap between the tapered pipe 6411 and the hollow straight pipe 6412, and rotates downwards under the flow guiding action of the spirally extending flow guiding plate 6413 to form a rotational flow, so that the garbage-containing air flow carries out second-stage filter dust removal under the rotational flow action to filter out light garbage with medium and small particle sizes, the filtered light garbage with medium and small particle sizes falls into the filter hopper body 631 from the lower end of the tapered pipe 6411, and the air flow containing fine dust enters the plate filter from the upper end of the hollow straight pipe 6412.

Alternatively, as shown in fig. 1, 9 and 10, the suction device includes a suction fan 71, a driving motor 72 for driving the suction fan 71 to operate, a suction pipe 73 for communicating the suction nozzle 20 and the suction fan 71, and an air pipe 74 for communicating the suction fan 71 and the inflow duct 61, and the suction fan 71 includes: the fan shell 711 is detachably connected with a frame of the sweeper, a garbage inlet 7111 and a garbage outlet 7112 which are communicated with an inner cavity of the fan shell 711 are arranged on the fan shell 711, the garbage inlet 7111 is communicated with the suction pipe 73, and the garbage outlet 7112 is communicated with the air pipe 74. An impeller 712 is rotatably disposed in the inner cavity of the blower housing 711, and the impeller 712 is connected to the driving end of the driving motor 72 to rotate under the driving of the driving motor 72 to crush the garbage in the inner cavity of the blower housing 711. When the garbage-containing air flow enters the fan shell 711, the garbage-containing air flow firstly enters the fan shell 711 from the garbage inlet 7111, the impeller 712 rotates at a high speed under the action of the driving motor 72, after the garbage-containing air flow enters the fan shell 711, the garbage-containing air flow collides with the impeller 712 and is crushed under the action of the impeller 712, and the garbage crushed by the impeller 712 is discharged outwards from the garbage outlet 7112 along with the air flow and enters the inflow pipeline 61, so that the garbage with large volume such as branches and leaves is effectively prevented from blocking a suction pipeline, the labor intensity of environmental sanitation workers in dredging and cleaning the blocked pipeline is reduced, the operation efficiency of the sweeper is improved, and the service life of the sweeper is prolonged; on the other hand, get into dust collector 60 again after the rubbish is broken, not only effectively improve dust collector 60's dust removal effect, the raise dust that arouses when reducing the air current and discharging, the solid waste volume of filtering separation simultaneously is less, can not occupy more garbage bin accommodation space, and then the operating time of extension motor sweeper to improve the operating efficiency that rubbish was cleaned.

Preferably, as shown in fig. 9, the suction fan 71 further includes a second mounting seat 714 fixedly connected to the fan housing 711, and the suction fan 71 may be integrally mounted at a desired place through the second mounting seat 714. Further, a plurality of dampers 715 are installed at the bottom of the second mounting seat 714 for reducing vibration when the suction fan 71 operates. Specifically, the dampers 715 are rubber blocks, plastic blocks, or the like.

In an alternative embodiment, as shown in fig. 11, the impeller 712 includes a disk 7121 fixedly connected to the driving end of the driving motor 72, a plurality of blades 7122 arranged in a vortex shape are disposed on the disk 7121, and the blades 7122 are used for crushing the garbage during the rotation of the disk 7121. Further, blades 7122 are provided with cutting edges to break up the trash. The joint of each blade 7122 and the wheel disk 7121 is provided with a rib plate 7123 for enhancing the connection strength of the blade 7122 and the wheel disk 7121.

In this alternative embodiment, as shown in FIG. 11, a waste inlet 7111 is located on a first side of the blower housing 711 for connection to the discharge end of the suction nozzle; the garbage outlet 7112 is located in the normal direction of the swirling airflow in the blower housing 711, so that the crushed garbage can be smoothly discharged from the garbage outlet 7112 by the swirling airflow. The driving motor 72 communicates with a second side of the blower housing 711. The fan shell 711 is provided with a plurality of access holes, each access hole is provided with an access cover plate 713 used for sealing the access hole, the access holes are in a closed state when the suction fan 71 works, and the access cover plates 713 can be opened when the suction fan 71 needs to be checked, maintained and cleaned.

Alternatively, as shown in fig. 1 and 5, the lifting device includes a lifting frame 51 and a lifting drive mechanism. The lifting frame 51 is arranged on the frame 90 in a vertically sliding manner along the height direction of the frame 90, a supporting platform for supporting the garbage can 80 is horizontally arranged on the lifting frame 51, and a plurality of limiting plates (not shown) for limiting the garbage can 80 on the supporting platform by abutting against the side wall of the garbage can 80 on the supporting platform are arranged on the supporting platform. In the embodiment of this alternative, the lifting frame 51 is a steel frame structure, and 4 rollers are installed on the left and right sides, so that the lifting frame 51 can slide up and down in the guide rail of the frame 90. The trash can 80 is a standard trash can. The trash can 80 is supported on a support platform. The connecting end of the lifting driving mechanism 52 is connected with the frame 90, and the driving end of the lifting driving mechanism is connected with the lifting frame 51 so as to lift the lifting frame 51 up and down under the control of the control system, and the feeding end of the garbage can 80 is always kept in sealed communication with the discharging end of the dust removing device 60 in the operation process. Preferably, the outlet end of the mounting box 62 is provided with a sealing strip for sealing a gap between the open end of the trash can 80 and the outlet end of the mounting box 62 to prevent dust from escaping during operation. The lifting driving mechanism 52 is one of a driving cylinder, a driving oil cylinder, a hydraulic motor and an electric push rod, and is used for lifting the lifting frame 51 up and down, and further lifting the trash can 80 up and down, so that the trash can 80 can be conveniently loaded into and unloaded from the trash can 80, and in the operation process, the open end of the trash can 80 is tightly pressed against the outlet end of the installation box 62 under the action of the lifting driving mechanism 52, so that ash is prevented from being emitted in the operation process, and the trash can 80 is tightly pressed between the supporting platform and the installation box 62. The mode of garbage bin collection rubbish compares in adopting the integral dustbin of connecting on the frame, and the user only needs to change garbage bin or disposal bag and can continue the operation, need not to come and go the rubbish site and empty rubbish, really realizes high-efficient operation, and the energy consumption is with high use rate.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pavement sweeper, comprising:

the garbage suction and sweeping device comprises a frame (90), a control system arranged on the frame (90), and a garbage suction and sweeping device, a suction device, a dust removal device (60), a lifting device and a garbage can (80) which are respectively connected with the control system, wherein the garbage suction and sweeping device comprises a suction nozzle (20) and a sweeper (30) which are arranged in an integrated manner;

the garbage suction and sweeping device is arranged below an electric chassis (110) at the front part of the frame (90), the suction device is arranged in the middle of the frame (90), the dust removal device (60) and the lifting device (50) are arranged at the rear part of the frame (90), the dust removal device (60) is positioned above the lifting device (50), the garbage can (80) is detachably arranged on the lifting device (50), and the suction nozzle (20) of the garbage suction and sweeping device, the suction device, the dust removal device (60) and the garbage can (80) are sequentially communicated;

the sweeper (30) is used for rotating under the control of the control system to gather garbage on a road surface in front of the suction nozzle (20); the suction nozzle (20) is used for sucking the gathered garbage under the action of the suction device; the suction device is used for vacuumizing the suction nozzle (20) and the garbage can (80) under the control of the control system and crushing the passing garbage, so that the garbage sucked by the suction nozzle (20) enters the garbage can (80) after being crushed by the suction device and dusted by the dust removal device (60); the dust removal device (60) is used for removing dust from the passing garbage-containing air flow under the control of the control system so as to enable solid garbage to fall into the garbage bin (80) and discharge the dust-removed clean air flow into the atmosphere; the lifting device (50) is used for lifting the garbage can (80) up and down under the control of the control system and enabling the garbage can (80) to be always in sealed communication with the discharge end of the dust removal device (60) in the operation process;

the garbage sucking and sweeping device also comprises a connecting seat (10) and a lifting driving mechanism (40), wherein the connecting seat is fixedly connected with the frame (90); the suction nozzle (20) is movably connected to the connecting seat (10); the sweeper (30) is fixedly connected to the suction nozzle (20), the sweeper (30) comprises two sweeping discs (31) and a connecting mechanism (32), the two sweeping discs (31) are respectively connected with the control system to rotate relatively under the control of the control system so as to gather garbage on the road surface towards the suction nozzle (20), the connecting mechanism (32) is fixedly connected with the suction nozzle (20), the connecting mechanism (32) is used for connecting the two sweeping discs (31) and enabling the heights of the two sweeping discs (31) to be adjustable in a vertical plane, and the two sweeping discs (31) rotate around a fixed point in a horizontal plane when being subjected to external acting force so as to buffer or avoid the external acting force; the connecting end of the lifting driving mechanism (40) is connected with the frame (90), the driving end of the lifting driving mechanism (40) is connected with the suction nozzle (20), and the lifting driving mechanism (40) is further connected with the control system so as to drive the suction nozzle (20) to move up and down along a fixed track relative to the connecting seat (10) under the control of the control system.

2. A pavement sweeping vehicle according to claim 1,

the connecting mechanism (32) comprises a mounting support rod (321) fixedly connected with the suction nozzle (20) and two groups of connecting components which are respectively arranged at two ends of the mounting support rod (321), and each group of connecting components comprises a vertical swing arm (322), a transverse swing arm (323), a jacking adjusting piece (324) and a pre-tightening spring (325);

the first end of the vertical swing arm (322) is hinged with the free end of the mounting support rod (321) in the horizontal plane, so that the vertical swing arm (322) can rotate around a hinge shaft arranged horizontally in the vertical plane;

a first end of the transverse swing arm (323) is hinged with a second end of the vertical swing arm (322) in a vertical plane, so that the transverse swing arm (323) is rotatably arranged around a vertically arranged hinge shaft in a horizontal plane;

the sweeping disc (31) is fixed with the second end of the transverse swing arm (323) which is correspondingly arranged;

the jacking adjusting piece (324) is arranged at the free end of the mounting support rod (321) in a corresponding manner, the height of the jacking adjusting piece (324) in a vertical plane is adjustable, and the top of the jacking adjusting piece (324) abuts against the first end of the vertical swing arm (322) in a corresponding manner;

two ends of the pre-tightening spring (325) are respectively connected with the vertical swing arm (322) and the transverse swing arm (323) so as to apply pre-tightening force of the transverse swing arm (323) rotating towards the forward direction of the sweeper, and buffer or avoid external acting force applied to the sweeping disc (31).

3. A pavement sweeping vehicle according to claim 2,

the suction nozzle (20) comprises a suction nozzle body (21), a connecting rod mechanism (22) and a mounting seat (23);

the suction nozzle body (21) is communicated with the suction device so as to suck the garbage gathered by the sweeping disc (31) under the action of the suction device;

the connecting rod mechanism (22) is respectively connected with the connecting seat (10) and the suction nozzle body (21) so as to movably connect the suction nozzle body (21) with the connecting seat (10);

the mounting seat (23) is fixedly connected with the suction nozzle body (21), the driving end of the lifting driving mechanism (40) and the mounting support rod (321) are respectively fixedly connected with the mounting seat (23), and the lifting driving mechanism (40) is used for driving the mounting seat (23) to drive the suction nozzle body (21) and the sweeper (30) to move up and down along a fixed track relative to the connecting seat (10).

4. A pavement sweeping vehicle according to claim 3,

the suction nozzle body (21) comprises a suction nozzle body (211) with an inner cavity (2110);

the bottom of the suction nozzle body (211) is provided with a main suction port (2111) which is communicated with the inner cavity (2110) for sucking gathered garbage into the inner cavity (2110), and the main suction port (2111) is connected with a first end cover (212) for sealing the main suction port (2111);

the top of the suction nozzle body (211) is provided with a discharge port (2112) which is respectively communicated with the inner cavity (2110) and the suction device so that garbage in the inner cavity (2110) can be discharged out of the inner cavity (2110);

the outer side wall of the suction nozzle body (211) is provided with an auxiliary suction port (2113) communicated with the inner cavity (2110) and a suction rod detachably connected with the auxiliary suction port (2113), the suction rod is communicated with the auxiliary suction port (2113) to move to a required position under the operation of sanitation personnel so as to suck garbage at the position into the inner cavity (2110), and the auxiliary suction port (2113) is connected with a second end cover (217) used for sealing the auxiliary suction port (2113).

5. A pavement sweeper according to claim 1, characterized in that the dust removing device (60) comprises:

the garbage truck comprises a garbage containing air flow, an inflow pipeline (61) for allowing garbage containing air flow to enter, an outflow end of the inflow pipeline (61) is communicated with a mounting box (62), and the mounting box (62) is connected with a truck frame (90) and is communicated with a garbage can (80);

the filter hopper (63) is arranged in the installation box (62), the filter hopper (63) is used for being matched with the installation box (62) to form a vortex-shaped flow channel between the filter hopper and the installation box, so that the entering garbage-containing airflow is subjected to first-stage separation under the action of centrifugal force, the separated heavy garbage, large-particle-size garbage and part of middle-particle-size garbage with middle and small particle sizes fall into the garbage can (80), and the rest part of middle-particle-size garbage with middle and small particle sizes enters an inner cavity of the filter hopper (63) after passing through the filter hopper (63);

the filter element group (64) is arranged in the inner cavity of the filter hopper (63) and is used for carrying out secondary separation on the entering garbage-containing airflow, the filter element group (64) is used for enabling the garbage-containing airflow to enter spirally to form a rotational flow so as to separate light garbage with medium and small particle sizes, and the filter element group (64) is communicated with the inner cavity of the filter hopper (63) so that the separated light garbage with medium and small particle sizes is temporarily stored in the inner cavity of the filter hopper (63);

and the filter (65) is used for carrying out third-stage separation on the garbage-containing airflow after being separated by the filter element group (64) so as to separate fine dust, and the filter (65) is connected to the upper surface of the top plate of the installation box (62) and is respectively communicated with the filter element group (64) and the atmosphere, so that the garbage-containing airflow discharged by the filter element group (64) enters the filter (65) for separation, and the clean airflow after being separated is discharged into the atmosphere.

6. A pavement sweeping vehicle according to claim 5,

the mounting box (62) is in a hollow box cover shape and comprises a box wall formed by enclosing a plurality of sections of arc plates and an upper cover plate connected to the top of the box wall, the open end of the mounting box (62) faces downwards and is in sealed communication with the garbage can (80), the box wall is fixedly connected with a frame of the sweeper, the outflow end of the inflow pipeline (61) is communicated with the box wall, and the upper cover plate is provided with a mounting through hole for the filter hopper (63) to penetrate through;

the filter hopper (63) comprises a filter hopper body (631) with two communicated and bowl-shaped ends, an installation end cover (632) connected to the opening end of the filter hopper body (631), a cylindrical baffle (633) connected to the lower end face of the installation end cover (632) and surrounding the filter hopper body (631), and a self-resetting door assembly (634) connected to the opening at the lower end of the filter hopper body (631);

the filtering hopper body (631) is inserted into the installation box (62) to surround the mounting box (62) to form a vortex-shaped flow channel, after an opening end of the filtering hopper body (631) penetrates out of the installation through hole upwards, the installation end cover (632) is detachably connected with the upper cover plate to seal the installation through hole, the cylindrical baffle (633) is positioned between the filtering hopper body (631) and the installation box (62) to split air flow, so that one part of air flow entering the installation box (62) is enabled to rotate in the vortex-shaped flow channel, the other part of air flow directly enters an inner cavity of the filtering hopper body (631), and the self-resetting door assembly (634) is used for automatically opening when medium and small-particle-size light garbage stored in the filtering hopper body (631) exceeds bearing weight so as to enable the medium and small-size light garbage to fall into the garbage can (80), and the garbage can automatically reset and close after the light garbage with small and medium grain diameters falls off.

7. A pavement sweeping vehicle according to claim 6,

a plurality of filtering through holes are formed in the side wall of the filtering hopper body (631), and the filtering through holes are used for allowing garbage-containing airflow to enter an inner cavity of the filtering hopper body (631);

the filter element group (64) is inserted into the inner cavity of the filter hopper body (631), and the top end of the filter element group (64) is fixedly connected with the mounting end cover (632);

the lower end of the filter hopper body (631) is conical to temporarily store the light garbage with medium and small particle size filtered by the filter element group (64).

8. A pavement sweeping vehicle according to claim 7,

the filter element group (64) comprises a plurality of swirl tubes (641) which are vertically arranged at intervals, and each swirl tube (641) comprises:

the conical pipe (6411) is vertically arranged, two ends of the conical pipe (6411) are communicated, and the lower end of the conical pipe (6411) is conical and extends downwards to the bottom of the filtering hopper body (631);

the hollow straight pipe (6412) is vertically arranged, two ends of the hollow straight pipe (6412) are communicated, the upper end of the hollow straight pipe (6412) is connected with the mounting end cover (632), extends upwards out of the mounting end cover (632) and then is communicated with the filter (65), and the lower end of the hollow straight pipe (6412) is axially inserted into the conical pipe (6411) from the upper end of the conical pipe (6411);

a baffle (6413) disposed between the straight hollow tube (6412) and the tapered tube (6411), wherein the baffle (6413) extends spirally along the length of the tapered tube (6411) to guide the garbage-containing airflow spirally into the tapered tube (6411) to form a swirling flow.

9. A pavement sweeping vehicle according to claim 5,

the suction device comprises a suction fan (71), a driving motor (72) for driving the suction fan (71) to act, a suction pipe (73) for communicating the suction nozzle (20) with the suction fan (71), and an air pipe (74) for communicating the suction fan (71) with the inflow pipeline (61), wherein the suction fan (71) comprises:

the fan shell (711) is detachably connected with the frame (90), a garbage inlet (7111) and a garbage outlet (7112) which are communicated with the inner cavity of the fan shell (711) are arranged on the fan shell (711), the garbage inlet (7111) is communicated with the suction pipe (73), and the garbage outlet (7112) is communicated with the air pipe (74);

an impeller (712) which is rotatably arranged is arranged in the inner cavity of the fan shell (711), and the impeller (712) is connected with the driving end of the driving motor (72) so as to rotate under the driving of the driving motor (72) to crush garbage in the inner cavity of the fan shell (711).

10. A pavement sweeping vehicle according to claim 9,

the impeller (712) comprises a wheel disc (7121) fixedly connected with the driving end of the driving motor (72), a plurality of blades (7122) which are arranged in a vortex shape are arranged on the wheel disc (7121), and the blades (7122) are used for crushing garbage in the rotating process of the wheel disc (7121);

and rib plates (7123) used for enhancing the connection strength of the blades (7122) and the wheel disc (7121) are arranged at the connection parts of the blades (7122) and the wheel disc.

11. A pavement sweeping vehicle according to claim 1,

the lifting device (50) comprises a lifting frame (51) and a lifting driving mechanism;

the lifting frame (51) is arranged on the frame (90) in a vertically sliding mode along the height direction of the frame (90), a supporting platform for supporting the garbage can (80) is horizontally arranged on the lifting frame (51), and a plurality of limiting plates which are used for being abutted against the side wall of the garbage can (80) on the supporting platform to limit the garbage can (80) on the supporting platform are arranged on the supporting platform;

the garbage bin (80) is supported on the supporting platform;

the connecting end of the lifting driving mechanism (52) is connected with the frame (90), and the driving end of the lifting driving mechanism is connected with the lifting frame (51) so as to lift the lifting frame (51) up and down under the control of the control system and enable the feeding end of the garbage can (80) to be always in sealing communication with the discharging end of the dust removal device (60) in the operation process.