CN217579935U

CN217579935U - Street sweeper with filter element guided for installation

Info

Publication number: CN217579935U
Application number: CN202221562684.0U
Authority: CN
Inventors: 陈骞; 刘悦君; 钟小明; 高璇
Original assignee: Zhuhai Ewa Electric Vehicle Co ltd
Current assignee: Zhuhai Ewa Electric Vehicle Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-10-14
Anticipated expiration: 2032-06-17

Abstract

The utility model provides a sweeper with a filter element guided and installed, which comprises a frame and a negative pressure generating device, wherein the negative pressure generating device comprises a fan, a suction box body, a filter element and a guide strip, the suction box body is provided with a filter cavity, the suction box body is provided with an installation opening and an exhaust opening, the inner side edge of the exhaust opening of the suction box body is provided with a positioning ring platform, the fixed end of the guide strip is positioned at the upper side of the positioning ring platform and is fixedly connected with the positioning ring platform, and the free end of the guide strip extends towards the installation opening; the filter core is installed in the suction box body from the installing port, and the first end of filter core is installed to the position ring bench after the guide of guide strip, and the fan is installed in exhaust port department, and the well kenozooecium and the gas vent intercommunication of filter core. The free end of the guide strip, which is located near the inner end, is in contact with the first end of the filter element first, and the free end of the guide strip, which is located near the lower position, can better catch the first end and is guided along with the guide section of the guide strip, so that the support inner ring on the first end of the filter element can be conveniently mounted at the positioning ring table.

Description

Street sweeper with filter element guided for installation

Technical Field

The utility model relates to a new forms of energy sanitation equipment field especially relates to a street sweeper of filter core guide installation.

Background

Floor sweepers which are customary on the market generally have wheels for driving along the floor and at least one rotatable brush for sweeping the floor as well as a suction device, by means of which the floor can be swept, for example a street, a sidewalk, a park or a parking lot.

The sweeper usually travels in the form of a vehicle, the suction device can be arranged in the rear region of the vehicle, and the vehicle can have a driver seat in the front region, the sweeper brush, in addition to the sweeper brush located in front of the vehicle, also comprises a roller brush located in the middle of the vehicle, the cleaning with the roller brush and the filtered dust collection of the suction device are used, so that the cleaning of the road is achieved.

Suction makes at suction equipment, need filter through the filter core, and the size and the filter area of filter core influence filtration efficiency and life, and the middle part of filter core generally is softer honeycomb filter body and arranges, when the filter core is longer, when installing the filter core from the unilateral, because the tip of filter core lacks the support, consequently causes the installation difficulty of filter core.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an utilize filter core guide mounting structure to make things convenient for street sweeper of filter core installation.

In order to realize the purpose of the utility model, the utility model provides a sweeper with a filter element guided and installed, which comprises a frame and a negative pressure generating device, wherein the negative pressure generating device comprises a fan, a suction box body, a filter element and a guide strip, and the filter element is arranged in a cylindrical shape and is arranged along the horizontal direction; the suction box body is provided with a filter cavity, the suction box body is provided with a mounting port and an exhaust port on two opposite sides of the filter cavity based on the horizontal direction, the suction box body is provided with a positioning ring table on the inner side edge of the exhaust port, the fixed end of the guide strip is positioned close to the upper side of the positioning ring table and is fixedly connected with the positioning ring table, and the free end of the guide strip extends towards the mounting port; the filter element is arranged in the suction box body from the mounting opening, the first end of the filter element is arranged on the positioning ring platform after being guided by the guide strip, the fan is arranged at the air outlet, and the hollow part of the filter element is communicated with the air outlet.

It is further preferred that the free end of the guide strip is lower than the fixed end of the guide strip in the vertical direction.

The guide strip is characterized in that the free end of the guide strip and the fixed end of the guide strip are both horizontally arranged, a guide section is arranged between the free end and the fixed end of the guide strip, and the guide section is inclined to the horizontal plane.

In a further proposal, the fixed end of the guide strip is fixedly connected with the inner peripheral wall of the positioning ring platform.

The further scheme is that the fixed end of the guide strip is provided with an avoiding step, and the positioning ring platform is positioned in the avoiding step.

According to a further scheme, the fan comprises a volute, a centrifugal impeller and a fan driving device, the centrifugal impeller is arranged in the volute, the fan driving device drives the centrifugal impeller to rotate, an axial inlet of the volute is connected with an exhaust port, and a radial outlet of the volute is located outside the suction box.

According to a further scheme, the sweeper further comprises an end cover, the second end of the filter element is fixedly connected with the end cover, and the end cover covers the mounting opening and is fixedly connected with the suction box body.

According to a further scheme, the filter element comprises a honeycomb-shaped filtering portion and a supporting inner ring, the honeycomb-shaped filtering portion is arranged in an annular mode, the supporting inner ring is arranged on the inner peripheral wall of the first end portion of the honeycomb-shaped filtering portion, and the supporting inner ring is sleeved outside the positioning ring table.

The beneficial effects of the utility model are that, the free end through being located the guide strip that leans on the inner contacts with the first end of filter core earlier, and the free end of guide strip is located the position that leans on down can catch first end better, and guide section guide along with the guide strip, thereby the position ring platform department can conveniently be installed to the support inner ring on the first end of filter core, the end cover that deuterogamies is fixed to the second end of filter core, and the lid closes the installing port, guarantee the relative seal of suction box, moreover, stiff end through the guide strip is connected with the internal perisporium of position ring platform, and the position ring platform is located dodges the step, thereby avoid the first end of filter core to block with the axial terminal surface of position ring platform, utilize the transition face of guide to improve the installation smoothness.

Drawings

Fig. 1 is a structural diagram of an embodiment of the sweeper.

Fig. 2 is a structural diagram of a negative pressure generating device in the embodiment of the sweeper.

Fig. 3 is a structural diagram of the roller brush assembly in the down state in the embodiment of the sweeper of the present invention.

Fig. 4 is a structural diagram of the roller brush assembly in another view angle in the embodiment of the sweeper of the present invention.

Fig. 5 is an exploded view of the roller brush assembly in the embodiment of the sweeper of the present invention.

Fig. 6 is a structural diagram of the rolling brush assembly in the retracted state in the embodiment of the sweeper of the present invention.

Fig. 7 is a structural diagram of a garbage can in the embodiment of the sweeper of the utility model.

Fig. 8 is a structural diagram of a negative pressure generating device in an embodiment of the sweeper of the present invention.

Fig. 9 is an exploded view of the negative pressure generating device in the embodiment of the sweeper of the present invention.

Figure 10 is a cross-sectional view of the embodiment of the sweeper of the utility model showing the garbage can.

Fig. 11 is a sectional view of the negative pressure generating device in the embodiment of the sweeper of the present invention.

Fig. 12 is a hydraulic control schematic diagram of the embodiment of the sweeper of the present invention.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Referring to fig. 1 to 6, the sweeper comprises a frame 11, four connecting plates 22, a middle connecting plate 221, a lifting driving assembly 26, a sweeping brush assembly, a rolling brush assembly 2, a negative pressure generating device 3 and a garbage can assembly, wherein the sweeping brush assembly is arranged in front of the frame 11 and comprises two sweeping brush modules and two sweeping brush arms 14, the sweeping brush arms 14 are connected between the sweeping brush modules and the frame 11, the sweeping brush modules comprise sweeping brushes and sweeping brush rotating hydraulic motors 13, and the sweeping brush rotating hydraulic motors 13 are connected with the sweeping brushes and drive the sweeping brushes to rotate.

The negative pressure generating device 3 and the garbage can assembly are arranged at the rear side of the frame 11, the garbage can assembly comprises a garbage can 4 and a garbage can driving oil cylinder assembly (not shown), the garbage can driving oil cylinder assembly is connected with the garbage can 4 and drives the garbage can 4 to move, and the rolling brush assembly 2 is positioned between the sweeping brush assembly and the garbage can assembly.

The rolling brush component 2 comprises a rolling brush box body 21, a rolling brush body 23, a rolling brush driving device 232, two adjusting brackets 24 and two adjusting screws 216, wherein a rolling brush cavity 211 is arranged in the rolling brush box body 21, the rolling brush body 23 is rotatably arranged in the rolling brush box body 21, the rolling brush box body 21 is provided with a rolling brush inlet 214 at the radial lower part of the rolling brush body 23, the rolling brush box body 21 is provided with a rolling brush outlet 213 at the radial upper part of the rolling brush body 23, the rolling brush outlet 213 is arranged towards the rear side along the radial direction and towards the dustbin,

the round brush box 21 is located the downside of frame 11, and four connecting plates 22 are located four corners of round brush box 21, and two connecting plates 22 of homonymy are located the both sides of round brush box 21 respectively, and well even board 221 is connected between the connecting plate 22 that is located the place ahead both sides, and connecting plate 22 articulates between round brush box 21 and frame 11, and round brush box 21 can remove with frame 11 relatively then.

The lifting driving assembly 26 comprises a lifting driving device 261, a transmission chain 262 and a positioning wheel 263, wherein the lifting driving device 261 is arranged in front of the rolling brush box body 21, the lifting driving device 261 can adopt a pneumatic or hydraulic driving device, the positioning wheel 263 is arranged on the frame 11 and is positioned above the rolling brush box body 21, a first end of the transmission chain 262 is connected with the lifting driving device 261, a second end of the transmission chain 262 is connected with the connecting plate 22, the transmission chain 262 is limited through the positioning wheel 263, and the rolling brush box body 21 is lifted through the telescopic driving of the lifting driving device 261. Of course, the second end of the transmission chain 262 can also be directly connected to the rolling brush box 21 or the connecting plate 22, which is used to realize the lifting drive of the rolling brush box 21. In addition, the lifting driving device 261 is also connected with the sweeping brush module and drives the sweeping brush module to move up and down.

The side walls 212 of the rolling brush box body 21 on two sides in the vehicle width direction are provided with adjusting sliding chutes 217 along the height direction, the adjusting sliding chutes 217 may extend linearly or in an arc shape, the rolling brush body 23 is provided with a driving end 231 and a driven end 233 at two ends in the axial direction, the driving end 231 and the driven end 233 may be relatively fixedly disposed in the adjusting sliding chute 217 of one side, specifically, the adjusting bracket 24 is provided with a hinge portion 242, the two adjusting brackets 24 are respectively hinged on the side wall 212 of the rolling brush box body 21 through the hinge portion 242 so that the adjusting bracket 24 may rotate on a vertical plane, the adjusting bracket 24 is provided with a mounting hole 241 at the rear side of the hinge portion 242, the driven end 233 is relatively rotatably disposed in the mounting hole 241 of one side and passes through the adjusting sliding chute 217 of one side, the rolling brush driving device 232 may employ a rolling brush rotating hydraulic motor 232, the rolling brush driving device 232 is disposed in the mounting hole 241 of the other side, the driving end 231 is connected between the rolling brush driving device 232 and the rolling brush body 23, and the driving end 231 passes through the adjusting sliding chutes 217, the rolling brush body 231, the rolling axis and the driving device 233 are sequentially disposed along the horizontal direction, the driving device and the driving end 233, the rolling brush body is rotated around the rolling brush body 23, and the rolling brush body is located on the front side of the rolling brush body 23.

The fixing plates 215 are disposed on the two side walls 212 of the rolling brush box 21, the positioning plates 243 are disposed on the adjusting bracket 24, one adjusting screw 216 is connected between one fixing plate 215 and one positioning plate 243 of the adjusting bracket 24, nuts can be disposed on the upper and lower sides of the fixing plate 215 and the positioning plate 243 on the adjusting screw 216, and the adjustment of the distance between the fixing plate 215 and the positioning plate 243 is utilized to adjust the rolling brush body 23 in the height direction.

The lower limb of round brush box 21 is provided with left bounding wall 2511, right bounding wall 2512 and back bounding wall 252, left bounding wall 2511 and right bounding wall 2512 are located the both sides of the car width direction of round brush box 21, back bounding wall 252 is located the rear side of round brush box 21, the machine of sweeping the floor still includes footboard 254, chain 255, driving medium 262 and preceding baffle 253, preceding baffle 253 articulates and sets up in the front side of round brush box 21 and is located between left bounding wall 2511 and the right bounding wall 2512, preceding baffle 253, left bounding wall 2511, right bounding wall 2512 and back bounding wall 252 can adopt rubber materials to make and form, driving medium 262 rotationally sets up on round brush box 21, footboard 254 rotationally sets up on frame 11, chain 255 is connected between footboard 254 and driving medium 262, when meeting great rubbish, the drive of trampling of accessible footboard 254, then can realize that the upset of preceding baffle 253 is opened, let rubbish get into round brush cavity 211 in. And the front baffle 253 and the rear coaming 252 incline towards the middle part, so that the rolling brush inlet 214 is contracted, and the front, rear, left and right coamings can be closer to the ground by utilizing the rolling brush box body 21 controlled by lifting, thereby effectively improving the negative pressure suction force of the rolling brush inlet 214.

Referring to fig. 7 to 11, the trash can 4 includes a fixed body 41 and a separating box 42, the fixed body 41 is fixedly disposed below the frame 11, the separating box 42 is disposed in the fixed body 41 and is separable from the fixed body 41, a top plate 45 is disposed on a top of the fixed body 41, the top plate 45 is provided with a mounting opening 451, the fixed body 41 is provided with a partition 432 below the top plate 45, the partition 432 is provided with a drain opening 433, the drain opening 433 of the partition 432 is disposed above the separating box 42, the trash can 4 is provided with a trash inlet 46 at a horizontal side portion of the drain opening 433, the partition 432 is disposed in a funnel shape, specifically, the partition 432 includes a front sloping plate 431, a rear sloping plate 432 and two side sloping plates 434, the front sloping plate 431 and the rear sloping plate 432 are connected at an obtuse angle, the front sloping plate 431 is disposed at the trash inlet 46, the front sloping plate 431 divides the trash inlet 46 into an upper inlet 461 and a lower inlet 462, the drain 433 is disposed at a bottom of the partition 432, the rear sloping plate 432 is disposed in an arch shape, the sloping plate 433 is disposed in other shapes, the sloping plate 434, the two side sloping plates 434 are disposed between the front sloping plate 432 and the front sloping plate 432.

The upper inlet 461 is defined by the top plate 45, the front inclined plate 431 and two side plates, the lower inlet 462 is defined by the front inclined plate 431, the bottom plate 47 and two side plates, the upper inlet 461 is located above the lower inlet 462, the cross section of the upper inlet 461 is smaller than that of the lower inlet 462, and preferably, the ratio of the cross section area of the upper inlet 461 to the cross section area of the lower inlet 462 is 1:2, after the roll brush housing 21 is butted against the dustbin 4, since the roll brush housing 21 is provided with the extension plate 201 extending obliquely toward the rear side at the roll brush outlet 213, the extension plate 201 passes through the upper inlet 461, so that the upper inlet portion where the suction effect actually occurs is smaller than the integral upper inlet 461, and the roll brush outlet 213 is opposed to and communicates with the dustbin inlet 46.

The negative pressure generating device 3 is installed at the installation port 451 of the top plate 45, the negative pressure generating device 3 includes a fan 33, a suction box 31, a filter element 32 and a guide strip 34, the suction box 31 is disposed above the vehicle frame 11 and fixedly connected with the top plate 45, the suction box 31 is provided with a filter chamber 310, the suction box 31 is provided with a suction port 314 below the filter chamber 310, the suction box 31 is provided with an installation port 311 and a discharge port 312 at two opposite sides of the filter chamber 310 based on a horizontal direction, the suction box 31 is provided with a positioning ring table 315 at an inner side edge of the discharge port 312, a fixed end 341 of the guide strip 34 is located at an upper side of the positioning ring table 315 and fixedly connected with the positioning ring table 315, specifically, a free end 343 of the guide strip 34 and the fixed end 341 of the guide strip 34 are both horizontally arranged, the guide strip 34 is provided with a guide section 344 between the free end 343 and the fixed end 341, the guide section 344 is inclined to the horizontal plane, in a vertical direction, the free end 343 of the guide strip 34 is lower than the fixed end 341 of the guide strip 34, the fixed end 343 of the guide strip 34 extends towards the installation port 311, the fixed end 341 of the guide strip 34 is provided with the guide strip 341, the fixed end 341, the guide strip 34, the guide strip is provided with the fixed end 341 connected with the fixed end 342 connected with the positioning ring table 315, and the fixed end 342 located in the positioning ring table 315, and the fixed end 342.

The filter element 32 is arranged in a cylindrical manner and is arranged along the horizontal direction, the filter element 32 comprises a honeycomb-shaped filter part and a support inner ring 322, the honeycomb-shaped filter part is arranged in an annular manner, the support inner ring 322 is arranged on the inner peripheral wall of the first end part of the honeycomb-shaped filter part, when the filter element is installed, the first end of the filter element 32 can be firstly supported by a hand, then the filter element 32 is installed in the filter cavity 310 of the suction box body 31 from the installation opening 311, then the first end of the filter element 32 is firstly contacted with the free end 343 of the guide strip 34, the support of the hand can be withdrawn at this time, the filter element can be pushed to enable the support inner ring 322 to move along the guide strip 34, finally the support inner ring 322 is sleeved outside the positioning ring table 315, then the installation and positioning of the first end are completed, the sweeper further comprises an end cover 321, the second end of the filter element 32 is fixedly connected with the end cover 321, and the end cover 321 covers the installation opening 311 and is fixedly connected with the suction box body 31. In addition, a scraper 313 is provided in the suction case 31, the scraper 313 is located at the outer periphery of the filter element 32, and when the filter element 32 is cleaned, the filter element 32 is rotated, and then the scraper 313 scrapes off dust on the filter element 32 and drops into the dustbin.

The blower 33 is installed at the exhaust port 312 and located at an axial end portion of the filter element 32, the hollow portion of the filter element 32 is communicated with the exhaust port 312, the blower 33 includes a volute 332, a centrifugal impeller 335 and a blower driving device 331, the centrifugal impeller 335 is disposed in the volute 332, the blower driving device 331 adopts a vane rotating hydraulic motor 331, the blower driving device 331 drives the centrifugal impeller 335 to rotate, an axial inlet 334 of the volute 332 is connected with the exhaust port 312, a radial outlet 333 of the volute 332 is located outside the suction box body 31, and the radial outlet 333 is located below and outside the suction box body 31.

The sweeper further comprises a hydraulic control component 5 and an electrical component 6, the electrical component 6 comprises a battery, a motor control device, a charger and a power distribution device, the hydraulic control component 5 comprises an oil tank 53, an oil pump assembly 52 and a valve assembly 51, the oil pump assembly 52, the valve assembly 51, the electrical component 6 and the suction box body 31 are all arranged on the same side of the frame 11, a radial outlet 333 of the volute 332 faces towards the oil pump assembly 52, the valve assembly 51 and the electrical component 6, the oil pump assembly 52, the valve assembly 51 and the fan 33 are all located on one side of the frame 11 based on a central axis of the width direction, a driving position can be arranged on the other side of the central axis, further more operating equipment can be arranged below the frame, the negative pressure generating device 3 is arranged on the rear side of the frame 11, the fan 33, the valve assembly 51, the oil pump assembly 52 and the oil tank 53 are sequentially arranged from back to front, when the fan 33 starts suction, air filtered by the filter element 32 is blown out from the radial outlet 333, and then the valve assembly 51, the oil pump assembly 52, the oil tank 53 and the electrical component 6 can be cooled.

Referring to fig. 12, the valve assembly 51 includes a one-way stable flow dividing valve 61, an M-shaped three-position four-way reversing valve assembly, a first M-shaped three-position four-way reversing valve 61, a second M-shaped three-position four-way reversing valve 62, a first M-shaped two-position four-way reversing valve 65, a second M-shaped two-position four-way reversing valve 66, a first overflow valve 67, a second overflow valve 645, a first pressure gauge 681, and a second pressure gauge 682, the M-shaped three-position four-way reversing valve assembly includes a third M-shaped three-position four-way reversing valve 641 and a fourth M-shaped three-position four-way reversing valve 642, the oil pump assembly 52 is connected between the oil tank 53 and an oil inlet P of the one-way stable flow dividing valve 61, and an output end a of the one-way stable flow dividing valve 61 is a stable output port.

The output end A of the one-way stable flow divider 61 is connected with the oil inlet P of the third M-shaped three-position four-way reversing valve 641, the oil return port T of the third M-shaped three-position four-way reversing valve 641 is connected with the oil inlet P of the fourth M-shaped three-position four-way reversing valve 642, the oil return port T of the fourth M-shaped three-position four-way reversing valve 642 is connected with the oil inlet P of the first M-shaped three-position four-way reversing valve 61,

the garbage can driving oil cylinder assembly comprises a garbage can lifting oil cylinder 643 and a garbage can turning oil cylinder 644, the garbage can lifting oil cylinder 643 drives a separating box body 42 of a garbage can to move in a lifting mode, the garbage can turning oil cylinder 644 drives the separating box body 42 to move in a turning mode, the output end of a third M-shaped three-position four-way reversing valve 641 is connected with the garbage can lifting oil cylinder 643, a fourth M-shaped three-position four-way reversing valve 642 is connected with the garbage can turning oil cylinder 644, a second overflow valve 645 is connected between an oil return port T of the third M-shaped three-position four-way reversing valve 641 and an oil tank 53, and a second pressure gauge 682 is connected to the oil return port T of the third M-shaped three-position four-way reversing valve 641.

An oil return port T of the fourth M-shaped three-position four-way reversing valve 642 is connected with an oil inlet P of the first M-shaped three-position four-way reversing valve 61, an oil return port T of the first M-shaped three-position four-way reversing valve 61 is connected with an oil inlet P of the second M-shaped three-position four-way reversing valve 62, an oil return port T of the second M-shaped three-position four-way reversing valve 62 is connected with the oil tank 53, an output end of the first M-shaped three-position four-way reversing valve 61 is connected with the lifting driving device 261, and an output end of the second M-shaped three-position four-way reversing valve 62 is connected with the two serially connected sweeping brush rotating hydraulic motors 13.

The B output end of the one-way stable flow dividing valve 61 is connected with an oil inlet P of the first M-shaped two-position four-way reversing valve 65, the A output end of the first M-shaped two-position four-way reversing valve 65 is connected with the input end of the rolling brush rotating hydraulic motor 232, the output end of the rolling brush rotating hydraulic motor 232 is connected with an oil inlet P of the second M-shaped two-position four-way reversing valve 66, an oil return port T of the second M-shaped two-position four-way reversing valve 66 is connected with the input end of the rolling brush rotating hydraulic motor 232, the A output end of the second M-shaped two-position four-way reversing valve 66 and the output end of the vane rotating hydraulic motor 331 are connected with the oil tank 53, the B output end of the first M-shaped two-position four-way reversing valve 65 and the oil return port T of the first M-shaped two-position four-way reversing valve 65 are connected with the first overflow valve 67, and the first pressure gauge 681 is connected with the B output end of the one-way stable flow dividing valve 61.

By the driving and control of the hydraulic control assembly 5, the lifting and turning of the dustbin can be realized, the lifting and turning of the sweeper brush and the rotation of the rolling brush and the blower fan, the rubbish can be swept to the middle by the rotation of the sweeper brush, and the rubbish can be swept upwards and raised by the rotation of the rolling brush, in addition, under the suction action of the blower fan, the suction inlet with negative pressure is positioned above the partition 432 and communicated with the leakage opening 433, so that the upper inlet 461 and the lower inlet 462 both have negative pressure, and the flow velocity is larger due to the smaller cross-sectional area of the upper inlet 461, so that light dust and particles enter the upper inlet 461 and enter the channel between the top plate 45 and the partition 43, then enter the filter cavity 310 and are filtered by the filter element, the dust or rubbish accumulated to a certain degree falls off, the filter element 32 is positioned above the leakage opening 433 and falls into the separation box 42 of the dustbin through the leakage opening 433, and heavier rubbish is directly sucked into the lower inlet 462 positioned below and directly enters the separation box 42.

Of course, the above-mentioned embodiment is only a preferred embodiment of the present application, and in specific applications, more variations can be provided, for example, a single-drive mode can be adopted for dumping the garbage can, and under the linkage control of the rolling brush and the fan, the fan can rotate simultaneously when the rolling brush is opened in a default state, the opening and closing of the fan can be controlled by controlling the second M-type two-position four-way reversing valve, the rolling brush rotating hydraulic motor and the vane rotating hydraulic motor can be connected in series, the linkage starting can be realized similarly, and the garbage can also adopt an integral garbage can except that the garbage can adopt a combination mode of a fixed body and a separation box body. And to connecting plate quantity arrangement, can allocate according to actual product, in addition, adopt the centrifugal impeller mode to carry out the negative pressure suction to fan 33, can certainly adopt axial compressor blade to carry out the negative pressure suction, also can produce the negative pressure effect equally. In addition, the fan driving device 331, the lifting driving device 261 and the rolling brush rotating hydraulic motor 232 are all driven hydraulically, but in this embodiment, the driving devices may be driven electrically or pneumatically.

From top to bottom, connect between round brush box and frame through the connecting plate, utilize lift drive assembly drive round brush box lift removal to realize packing up and putting down of round brush subassembly, can rise when not needing the brush and accelerate the walking speed of street sweeper, then be less ground clearance between round brush box and the ground when putting down, the round brush rotates the rubbish or dust that cleans and can follow round brush export and rubbish entry and get into to the dustbin, thereby effectively improves clean effect. Through the round brush that can highly regulated, not only can be to the contact degree that the adjustment round brush acted on ground, and can suitably descend the round brush height after the round brush wearing and tearing to improve the life of round brush. Utilize preceding baffle, left bounding wall, right coaming and back bounding wall to the encirclement of round brush entry, baffle and bounding wall can adopt relatively softer material in practical application, can effectively reduce ground clearance, when the negative pressure produces the device and produces the suction negative pressure to the round brush box, can improve the suction effect to the soft transmission of cooperation chain, when round brush box lift removal, do not influence the transmission structure of preceding baffle.

Moreover, separate into the rubbish entry through the baffle and go up entry and lower entry to and utilize the intercommunication of leak, and the cross section that the entry was gone up in the cooperation is less than the cross section of entry down, thereby the suction that lies in last entry is greater than the suction of entry down, and the round brush subassembly is when sweeping dust or rubbish simultaneously, heavier rubbish then gets into the lower entry that lies in the downside, and lighter dust then gets into last entry through great suction, thereby utilizes the shunting suction to improve clean efficiency. The funnel-shaped partition plate is arranged, so that the garbage in the garbage can is prevented from being sucked upwards. The front inclined plate separates the garbage inlet, and the arched leak is arranged behind the rear inclined plate, so that the air channel interference on the upper inlet and the lower inlet is reduced, and the suction efficiency is improved.

And, the free end through being located the guide strip that leans on the inner contacts with the first end of filter core earlier, and the free end of guide strip is located the position that leans on down and can catch first end better, and guide section guide along with the guide strip, thereby the support inner ring on the first end of filter core is installed locating ring platform department, the end cover of deuterogamying is fixed to the second end of filter core, and the lid closes the installing port, guarantee the relative seal of suction box, moreover, the stiff end through the guide strip is connected with the internal perisporium of locating ring platform, and the locating ring platform is located dodges the step, thereby avoid the first end of filter core to block with the axial end face of locating ring platform, utilize smooth-going transition face to improve the installation smooth and easy degree.

In addition, because the street sweeper carries out the suction of dust and rubbish through the negative pressure generating device, filter through the filter core after the suction, the air current after the filtration is discharged outwards from radial outlet, consequently with radial outlet towards the oil pump assembly, valve module and electric component, thereby effectively carry out wind energy recycle and the heat dissipation of equipment, and, utilize the fan to be located the tip of horizontal direction, and the oil pump assembly, valve module and fan all are located the frame on one side based on width direction's axis, thereby make full use of street sweeper's space, cockpit or other equipment that do not need the heat dissipation then can be arranged to the opposite side of axis, furthermore, because calorific capacity of valve module and oil pump assembly is great, consequently arrange valve module and oil pump assembly near the radial outlet of spiral case, thereby improve the radiating efficiency.

And, because dumping of dustbin subassembly, the lift of brush subassembly and rotatory cleaning all can not function simultaneously, consequently all set up the above-mentioned device in the middle of the A branch road of the steady voltage output of single-way stable flow divider, and arrange through the series connection of switching-over valve, the oil circuit structure has been simplified, optimize the circuit layout of street sweeper, and above-mentioned device does not need simultaneous working, consequently, do not influence the normal operating work of each device, and still with the round brush subassembly that can move simultaneously and negative pressure generating device setting in the B branch road of single-way stable flow divider, consequently, the influence of the oil pressure change in the middle of the B branch road to round brush and fan is the influence on the rotational speed only, its influence is little, and can adopt the series connection of round brush and fan, open the negative pressure suction simultaneously at the start-up round brush, thereby realize high-efficient cleaning.

Claims

1. The sweeper with the filter element guided and mounted is characterized by comprising a frame and a negative pressure generating device, wherein the negative pressure generating device comprises a fan, a suction box body, a filter element and a guide strip, and the filter element is arranged in a cylindrical shape and is arranged along the horizontal direction;

the suction box body is provided with a filter cavity, the suction box body is provided with a mounting port and an exhaust port on two opposite sides of the filter cavity based on the horizontal direction, the suction box body is provided with a positioning ring table on the inner side edge of the exhaust port, the fixed end of the guide strip is positioned close to the upper side of the positioning ring table and is fixedly connected with the positioning ring table, and the free end of the guide strip extends towards the mounting port;

the filter element is installed in the suction box body from the installation opening, the first end of the filter element is installed on the positioning ring platform after being guided by the guide strip, the fan is installed at the air outlet, and the hollow part of the filter element is communicated with the air outlet.

2. The sweeper of claim 1, wherein:

in the vertical direction, the free end of the guide strip is lower than the fixed end of the guide strip.

3. The sweeper of claim 2, wherein:

the free end of guide strip with the stiff end of guide strip all is the level and arranges, the guide strip is provided with the guide section between free end and stiff end, the guide section is inclined to the horizontal plane.

4. The sweeper of claim 1, wherein:

the fixed end of the guide strip is fixedly connected with the inner peripheral wall of the positioning ring table.

5. The sweeper of claim 4, wherein:

the fixed end of the guide strip is provided with an avoidance step, and the positioning ring platform is positioned in the avoidance step.

6. The sweeper of claim 1, wherein:

the fan comprises a volute, a centrifugal impeller and a fan driving device, the centrifugal impeller is arranged in the volute, the fan driving device drives the centrifugal impeller to rotate, an axial inlet of the volute is connected with the exhaust port, and a radial outlet of the volute is located outside the suction box.

7. A sweeper truck according to any one of claims 1 to 6, characterized in that:

the street sweeper still includes the end cover, the second end of filter core with end cover fixed connection, the end cover lid closes the installing port and with suction box fixed connection.

8. A sweeper truck according to any one of claims 1 to 6, characterized in that:

the filter core includes honeycomb filter house and supports the inner ring, honeycomb filter house is the annular setting, it sets up to support the inner ring on the internal perisporium of honeycomb filter house's first end, it overlaps in the support inner ring the position ring platform is outer.