CN105040616B - Sweeping machine suction nozzle and sweeping machine - Google Patents
Sweeping machine suction nozzle and sweeping machine Download PDFInfo
- Publication number
- CN105040616B CN105040616B CN201510437837.7A CN201510437837A CN105040616B CN 105040616 B CN105040616 B CN 105040616B CN 201510437837 A CN201510437837 A CN 201510437837A CN 105040616 B CN105040616 B CN 105040616B
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- suction nozzle
- sliding block
- sweeping machine
- passage
- top board
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Abstract
The invention discloses a kind of sweeping machine suction nozzle and sweeping machine, the sweeping machine includes front apron, coaming plate, top board and suction pipe with suction nozzle, the front apron, coaming plate, top board surround the open suction nozzle cavity in lower end, connecting hole is formed with the top board, the suction pipe is installed on the top board by the connecting hole and is connected with the suction nozzle cavity, wherein, the passage entered for large volume rubbish is formed with the front apron, the sweeping machine suction nozzle is additionally provided with the adaptive regulating mechanism for blocking or opening the passage.Therefore, the special passage for road surface large volume rubbish suction is provided with front apron, and the adaptive regulating mechanism for blocking or opening the passage is provided with simultaneously, so, suction nozzle cavity can be designed to relatively narrow and small cavity, so that lifting suction picks up ability, when there is large volume rubbish on road surface, the passage opens voluntarily, after large volume rubbish is inhaled into, the passage is voluntarily reduced into the normal entry that performance is picked up with good suction.
Description
Technical field
The present invention relates to road cleaning equipment field, in particular it relates to a kind of sweeping machine suction nozzle and use the sweeping machine
With the sweeping machine of suction nozzle.
Background technology
Sweeping machine suction nozzle is the critical component for influenceing sweeping machine operation vehicle performance, and suction nozzle sets under equal flow condition
The good and bad clean rate for directly determining sweeping machine operation of meter, on the premise of ensureing that clean-up performance is enough, the suction of superior performance is picked up in suction
Suction nozzle of the flow far below conventional scheme needed for mouth, and when the flow-reduction of blower fan, its noise, energy consumption all accordingly decline.
For performance is picked up in the suction for lifting suction nozzle, generally require and the airflow path cross-sectional area of suction nozzle is designed into very little, to improve
Air velocity, so that air-flow quick ground refuse that carries in flow process together into suction nozzle and is admitted to dustbin
In, but the suction nozzle of this kind of design cannot solve the problems, such as the suction of large volume rubbish, to adapt to the suction needs of large volume rubbish,
Existing suction nozzle typically use soft rubber plate, or separate in the middle part of rubber slab a road junction with provide large volume rubbish entrance lead to
Road, so when sweeping machine operation, if there is no large volume rubbish, due to the effect of blower fan suction, the openning be also it is unlimited,
Most of air-flow is flowed into from this passage, increases blower fan load, while the air velocity of suction nozzle other parts suction inlet is also reduced, and then
Ability is picked up in influence suction.
The content of the invention
It is an object of the present invention to provide a kind of sweeping machine suction nozzle, the sweeping machine suction nozzle can solve the problem that large volume rubbish
The suction problem of rubbish, and ensure to pick up performance with good suction during normal use simultaneously.
It is a further object to provide a kind of sweeping machine, the sweeping machine has good clean rate, can be with energy-conservation
Noise reduction.
According to an aspect of the present invention, there is provided a kind of sweeping machine suction nozzle, the sweeping machine includes front with suction nozzle
Plate, coaming plate, top board and suction pipe, the front apron, coaming plate, top board surround the open suction nozzle cavity in lower end, are formed on the top board
Have connecting hole, the suction pipe is installed on the top board by the connecting hole and is connected with the suction nozzle cavity, wherein, it is described before
The passage entered for large volume rubbish is formed with baffle plate, the sweeping machine suction nozzle is additionally provided with described for blocking or opening
The adaptive regulating mechanism of passage.
Preferably, the adaptive regulating mechanism is blocked in sliding block in the passage and positioned at the passage including lower end
The slide rail of top, the sliding block can move up to open the passage along the slide rail.
Preferably, the anterior downside of the sliding block is formed with sweptback inclined plane.
Preferably, it is formed with horizontal-extending bottom surface on rear side of the inclined plane.
Preferably, the sliding block has a side wall of a pair of opposing, and the adaptive regulating mechanism is also included through described
The connecting rod of side wall, the two ends of the connecting rod are arranged with pulley, and the chute for being slided for the pulley is provided with the slide rail.
Preferably, the chute vertically extends.
Preferably, sliding scale of the sliding block in the slide rail works as institute between first position and the second place
When stating sliding block positioned at the first position, the lower surface flush of the bottom surface of the sliding block and the coaming plate.
Preferably, when the sliding block is located at the second place, under the bottom surface and the top board of the sliding block
Surface flush.
Preferably, the adaptive regulating mechanism also includes setting to the dust shield case on the top board, to cover the sliding block.
Preferably, support base is provided with the top board, the opening passed through for the sliding block is formed with the support base,
The dust shield case is covered on the support base.
Preferably, relief hole is formed with the inclined plane, there is ventilation pore on the dust shield case.
Preferably, it is formed with gas port on the rear wall of the sliding block.
Preferably, the sliding block also includes guide plate, and one end of the guide plate is connected on the rear wall, other end connection
Onto the inclined plane, described one end is located at the lower section of the gas port, and the other end is located at the rear of the relief hole.
Preferably, the front apron is in V-shaped structure, and the passage is located at the corner of the V-structure.
According to another aspect of the present invention, there is provided a kind of sweeping machine, the sweeping machine includes the sweeping machine suction nozzle that the present invention is provided.
By above-mentioned technical proposal, the special passage for road surface large volume rubbish suction is provided with front apron, and together
When be provided with and block or open the adaptive regulating mechanism of the passage, so, the suction nozzle cavity of sweeping machine suction nozzle can set
Count into relatively narrow and small cavity, i.e. the height of suction nozzle cavity can be reduced, to reduce the ventilation area of suction nozzle cavity, carry
Air velocity in suction nozzle cavity high, so that lifting suction picks up ability, i.e. larger rubbish can be drawn with less throughput
Amount, such that it is able to reduce rotation speed of fan operation, and then realizes making the purpose of vehicle energy-saving and noise-reducing on the premise of ensureing clean rate.Make
Used time when there is large volume rubbish on road surface, the passage opens voluntarily, after large volume rubbish is inhaled into, the passage is voluntarily reduced into
The normal entry of performance is picked up with good suction.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of specification, with following tool
Body implementation method is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structural representation of the sweeping machine suction nozzle that the preferred embodiment for the present invention is provided；
Fig. 2 is the structural representation of the sliding block of the sweeping machine suction nozzle that the preferred embodiment for the present invention is provided；
Fig. 3 is the overlooking the structure diagram of the sweeping machine suction nozzle that the preferred embodiment for the present invention is provided；
Fig. 4 is the cross-sectional view that A-A faces are intercepted along Fig. 3, and wherein sliding block is in first position；
Fig. 5 is the cross-sectional view that B-B faces are intercepted along Fig. 4；
Fig. 6 is the cross-sectional view that A-A faces are intercepted along Fig. 3, and wherein sliding block is in first position and second
Between putting.
Description of reference numerals
The coaming plate of 10 suction nozzle cavity, 11 front apron 12
The relief hole of 13 top board, 14 suction pipe 15
The guide plate of 16 17 gas port of ventilation pore 18
The adaptive regulating mechanism of 19 outer skirt, 20 passage 21
The bottom surface of 22 sliding block, 221 inclined plane 222
The slide rail of 223 side wall, 224 rear wall 23
The chute of 24 connecting rod, 25 pulley 26
The dust shield case of 27 support base 28
Specific embodiment
Specific embodiment of the invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
In the present invention, in the case where opposite explanation is not made, the noun of locality for using such as " upper and lower, bottom, top, forward and backward " is logical
It is often that specifically, the direction advanced during sweeping machine operation is " preceding ", is swept for state when sweeping machine normal work
The direction retreated during bus operation for " afterwards ", in addition, " inner and outer " refer to corresponding component profile it is interior with it is outer.
As shown in Figures 1 to 6, according to an aspect of the present invention, there is provided a kind of sweeping machine suction nozzle, the sweeping machine is inhaled
Mouth includes front apron 11, coaming plate 12, top board 13 and suction pipe 14, and front apron 11, coaming plate 12, top board 13 surround the open suction in lower end
Mouth cavity 10, is formed with connecting hole on the top board 13, suction pipe 14 by the connecting hole be installed on top board 13 with suction nozzle cavity
10 connections, wherein, be formed with the passage 20 entered for large volume rubbish on front apron 11, sweeping machine suction nozzle be additionally provided with for
Block or open the adaptive regulating mechanism 21 of passage 20.
Therefore, the special passage 20 for road surface large volume rubbish suction, and sweeping machine simultaneously are provided with front apron 11
With the adaptive regulating mechanism 21 that blocking or opening passage 20 are provided with suction nozzle, so, the suction nozzle cavity of sweeping machine suction nozzle
10 can be designed to relatively narrow and small cavity, i.e. can reduce the height of suction nozzle cavity 10, to reduce the air of suction nozzle cavity 10
Circulation area, improves the air velocity in suction nozzle cavity 10, so that lifting suction picks up ability, i.e. can be inhaled with less throughput
Larger quantity of refuse is taken, such that it is able to reduce rotation speed of fan operation, and then realizes making vehicle energy-conservation on the premise of ensureing clean rate
The purpose of noise reduction.When using when there is large volume rubbish on road surface, the opens voluntarily of passage 20, after large volume rubbish is inhaled into,
The passage 20 is voluntarily reduced into the normal entry that performance is picked up with good suction, i.e. small size rubbish can be from the bottom of suction nozzle cavity 10
Enter suction nozzle cavity 10 in small gaps between face and road surface and then be sucked into suction pipe 14.
Above-mentioned passage 20 is blocked and opened for convenience, and as shown in Figures 4 to 6, adaptive regulating mechanism 21 is stifled including lower end
The sliding block 22 in passage 20 and the slide rail 23 positioned at the top of passage 20 are filled in, sliding block 22 can move up logical to open along slide rail 23
Road 20.That is, when in sweeping machine operation, road surface does not have large volume rubbish, sliding block 22 is sealed in passage 20, when driving meets greatly
During volume rubbish, sliding block 22 can slide to open passage 20 along slide rail 23 to the direction away from passage 20.
Sliding block 22 is pushed away from passage 20 rapidly for ease of large volume rubbish, sliding block 22 is formed with backward on the downside of front portion
Inclined inclined plane 221, for example, can be inclined-plane, hyperbola inclined-plane, parabolic surface or other curved surfaces etc..Therefore, large volume
Rubbish is sucked into when at the import of passage 20, and the inclined plane 221 of sliding block 22 can give large volume rubbish one thrust of horizontal direction,
The thrust, blower fan suction and bottom surface frictional force can form a torque, promote large volume rubbish to roll, so as to the top of sliding block 22 be opened
And enter in suction nozzle cavity 10.
In other words, it is that the rolling of itself is realized with pushing up out sliding block 22 by large volume rubbish to open passage 20, at other
In implementation method, the top of sliding block 22 can also be opened so as to open passage 20 by external force, for example, biography can be set on sliding block 22
Sensor, after receiving the signal of large volume rubbish entrance, the signal is transmitted to executing agency by sensor, and executing agency pulls sliding block 22
Depart from passage 20, after large volume rubbish enters suction nozzle cavity 10, executing agency puts down sliding block 22.For this kind of deformation, fall within
Among protection scope of the present invention.
Further, it is the sealing of the passage 20 that enhancing large volume rubbish enters when sweeping machine is with suction nozzle normal work
Property, as shown in Fig. 2, Fig. 4 and Fig. 6, the rear side of inclined plane 221 is formed with horizontal-extending bottom surface 222.That is, the rear wall of sliding block 22
224 and bottom surface 222 be provided commonly for blocking channel 20, further to lift the sealing property of passage 20.
As shown in Figures 2 to 6, the slip for ease of sliding block 22 and positioning, sliding block 22 have the side wall of a pair of opposing
223, adaptive regulating mechanism 21 also includes the connecting rod 24 through side wall 223, and the two ends of the connecting rod 24 are arranged with pulley 25,
Can be for example bearing, the chute 26 for being slided for pulley 25 is provided with slide rail 23, therefore, it can by chute 26 and slide
The cooperation of wheel 25 causes that sliding block 22 is stably slided along slide rail 23.It is further preferable that can respectively pacify in the top and the bottom of side wall 223
A connecting rod 24 is filled, to ensure that sliding block 22 slides more stable, front and rear skew will not occur.It should be noted that sliding block 25
Can be installed in slide rail 23 with pulley 25 by other means, the invention is not limited in this regard belongs to protection of the invention
Among scope.
For ease of large volume rubbish, easily sliding upwards for sliding block 22 is opened on top, and is easy to large volume rubbish to suck rear slider
22 it is rapid slide back into passage 20, chute 26 vertically extends.
Performance and sealing are picked up in good suction during for the normal work for ensureing suction nozzle simultaneously, as shown in figure 4, sliding block 22 exists
Sliding scale in slide rail 23 between first position and the second place, when sliding block 22 be located at first position when, sliding block 22
Bottom surface and the lower surface flush of coaming plate 12.That is, at above-mentioned first position, if the bottom surface of sliding block 22 is less than the following table of coaming plate 12
Face, sliding block 22 is easily contacted with ground, and performance is picked up in influence suction, if lower surface of the bottom surface of sliding block 22 higher than coaming plate 12, sliding block 22
Cannot completely plugged passage 20, sealing is poor.
Can enter in suction nozzle cavity 10 for ease of large volume rubbish, while avoiding the length of slide rail 23 long, work as sliding block
22 when being located at the second place, the bottom surface of sliding block 22 and the lower surface flush of top board 13.If the bottom surface of sliding block 22 is less than top board 13
Lower surface, the height of passage 20 can be caused less than the height of said suction nozzle cavity 10, so as to the suction of large volume rubbish can be prevented
Enter into suction nozzle cavity 10, if upper surface of the bottom surface of slip ring 22 higher than top board 13, can increase the invalid of sliding block 22 and slide rail 23
Length.
To prevent adaptive mechanism 21 by the dust pollution of top, as shown in Fig. 1, Fig. 4 and Fig. 6, adaptive regulating mechanism
21 also include setting to the dust shield case 28 on top board 13, to cover sliding block 22.That is, dust shield case 28 is buckled on top board 13, sliding block 22
All it is contained in dust shield case 28 with slide rail 23.
As a kind of preferred embodiment, support base 27 is provided with top board 13, is formed with support base 27 for sliding block 22
The opening for passing through, dust shield case 28 is covered on support base 27.In other words, when sweeping machine is worked with suction nozzle, when not running into large volume
During rubbish, the lower end of sliding block 22 is blocked in passage 20, and the top of sliding block 22 is contained in above-mentioned opening, i.e. the opening is located at
The top of passage 20.
It is further preferable that being enhancing dust-proof effect, sliding block 22 is fitted installation with above-mentioned opening, i.e. each side of sliding block 22
Each side of face and the formation opening is bonded to each other, and further, for the benefit of sliding block 22 smoothly slides relative to support base 27,
Sliding block 22 and support base 27 are gap cooperation.
The inside of suction nozzle cavity 10 is negative pressure, and above-mentioned closing space is malleation, and sliding block 22 positioned in passage 20 and upper
State between front cover space, i.e. the lower surface of sliding block 22 is negative pressure, and the upper surface of sliding block 22 is malleation, therefore, when sliding block 22 to
In upper sliding process, suffered power of the resistance pack containing three aspects, i.e. self gravitation, atmospheric pressure and kinetic friction force.
For convenience of large volume rubbish, by sliding block 22, smoothly top is opened, and as shown in Figure 1 and Figure 5, pressure release is formed with inclined plane 221
Hole 15, has ventilation pore 16 on dust shield case 28.Therefore can be led via ventilation pore 16 by flexible pipe in the inner chamber of dust shield case 28
Enter pollution-free clean gas to be depressured sliding block 22, the suffered top air pressure of anti-limited slip block 22 it is excessive and cannot be by ground bulky grain top
Open, while can also be to carrying out automatically cleaning inside dust shield case 28.
Due to the space that and relief hole 15 are relatively isolated can be formed between the rear wall 224 of mounting seat 27 and sliding block 22,
To prevent that airborne dust is piled up in mounting seat 27, gas port 17 is formed with the rear wall 224 of sliding block 22, it is further preferable that such as Fig. 4 institutes
Show, when sliding block 22 is in above-mentioned first position, the upper surface of the lower trough rim less than mounting seat 27 of the gas port 17, therefore air-flow
From ventilation pore 16 enter after can be by being blown in gas port 17 by the airborne dust of all accumulations on the upper surface of mounting seat 27
Deliver at relief hole 15.
Discharged from relief hole 15 for ease of airborne dust is quick, as shown in fig. 6, sliding block 22 also includes guide plate 18, the guiding
One end of plate 18 is connected on rear wall 224, and the other end is connected in inclined plane 221, and one end is located at the lower section of gas port 17, another
End is positioned at the rear of relief hole 15, therefore the airborne dust blown out from gas port 17 can be rapidly directed to relief hole by guide plate 18
At 15.
For ease of by both sides bulky grain rubbish toward intermediate collection so that air-flow carries large volume rubbish to carry out lateral transfer and enter
Enter the porch of passage 20, front apron 11 is in V-shaped structure, and passage 20 is located at the corner of the V-structure.
To prevent impact of the reflux gas to import primary air, the suction of rubbish is influenceed, set on the bottom surface of front apron 11
There is the inner skirt for extending internally.
For ability is picked up in the suction for further lifting suction nozzle, the outer skirt 19 for stretching out, bullet are provided with the bottom surface of coaming plate 12
Property plate be fixed in the outer skirt 19 to recline when in use on the ground, such as outer skirt 19 can be pasted with rubber slab with seal
Dead air gap.
According to another aspect of the present invention, there is provided a kind of sweeping machine, the sweeping machine includes above-mentioned sweeping machine suction nozzle, because
This, on the premise of ensure that clean rate due to the sweeping machine, realizes energy-saving and noise reduction.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in range of the technology design of the invention, various letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy is no longer separately illustrated.
Additionally, can also be combined between a variety of implementation methods of the invention, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of sweeping machine suction nozzle, including front apron (11), coaming plate (12), top board (13) and suction pipe (14), the front
Plate (11), coaming plate (12), top board (13) surround the open suction nozzle cavity (10) in lower end, and connecting hole is formed with the top board (13),
The suction pipe (14) is installed on the top board (13) by the connecting hole and is connected with the suction nozzle cavity (10), and its feature exists
In, the passage (20) entered for large volume rubbish is formed with the front apron (11), the sweeping machine is additionally provided with suction nozzle
Adaptive regulating mechanism (21) for blocking or opening the passage (20), the adaptive regulating mechanism (21) is including lower end
The sliding block (22) being blocked in the passage (20) and the slide rail (23) above the passage (20), the sliding block (22) can
Moved up along the slide rail (23) to open the passage (20), the anterior downside of the sliding block (22) is formed with and tilts backwards
Inclined plane (221), the adaptive regulating mechanism (21) also includes the dust shield case (28) set on the top board (13), with
The sliding block (22) is covered, support base (27) is provided with the top board (13), be formed with the support base (27) for described
The opening that sliding block (22) is passed through, the dust shield case (28) is covered on the support base (27), is formed with the inclined plane (221)
Relief hole (15), has ventilation pore (16) on the dust shield case (28).
2. sweeping machine suction nozzle according to claim 1, it is characterised in that be formed with rear side of the inclined plane (221)
Horizontal-extending bottom surface (222).
3. sweeping machine suction nozzle according to claim 1, it is characterised in that the sliding block (22) is with a pair of opposing
Side wall (223), the adaptive regulating mechanism (21) also include through the side wall (223) connecting rod (24), the connection
The two ends of bar (24) are arranged with pulley (25), and the chute for being slided for the pulley (25) is provided with the slide rail (23)
(26)。
4. sweeping machine suction nozzle according to claim 3, it is characterised in that the chute (26) vertically extends.
5. sweeping machine suction nozzle according to claim 1, it is characterised in that the sliding block (22) is in the slide rail (23)
Sliding scale between first position and the second place, when the sliding block (22) is positioned at the first position, the cunning
The bottom surface of block (22) and the lower surface flush of the coaming plate (12).
6. sweeping machine suction nozzle according to claim 5, it is characterised in that when the sliding block (22) is positioned at the second
When putting, the bottom surface of the sliding block (22) and the lower surface flush of the top board (13).
7. sweeping machine suction nozzle according to claim 1, it is characterised in that shape on the rear wall (224) of the sliding block (22)
Into there is gas port (17).
8. sweeping machine suction nozzle according to claim 7, it is characterised in that the sliding block (22) also includes guide plate
(18), one end of the guide plate (18) is connected on the rear wall (224), and the other end is connected in the inclined plane (221), institute
One end is stated positioned at the lower section of the gas port (17), the other end is located at the rear of the relief hole (15).
9. sweeping machine suction nozzle according to claim 1, it is characterised in that the front apron (11) is described in V-shaped structure
Corner of the passage (20) positioned at the V-structure.
10. a kind of sweeping machine, it is characterised in that the sweeping machine includes according to any one of claim 1 to 9 sweeping road
Automobile-used suction nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510437837.7A CN105040616B (en) | 2015-07-23 | 2015-07-23 | Sweeping machine suction nozzle and sweeping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510437837.7A CN105040616B (en) | 2015-07-23 | 2015-07-23 | Sweeping machine suction nozzle and sweeping machine |
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| Publication Number | Publication Date |
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| CN105040616A CN105040616A (en) | 2015-11-11 |
| CN105040616B true CN105040616B (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510437837.7A Active CN105040616B (en) | 2015-07-23 | 2015-07-23 | Sweeping machine suction nozzle and sweeping machine |
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| CN (1) | CN105040616B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337383B (en) * | 2016-09-28 | 2018-09-21 | 长沙中联重科环境产业有限公司 | Nozzle unit and cleaning vehicle |
| CN106702934B (en) * | 2016-12-28 | 2018-11-27 | 长沙中联重科环境产业有限公司 | Clean- suction nozzle and road cleaning vehicle |
| CN106889945A (en) * | 2017-03-16 | 2017-06-27 | 马涛 | Cleaner suction nozzle |
| CN108005003A (en) * | 2017-12-25 | 2018-05-08 | 上海神舟汽车节能环保股份有限公司 | One kind self-regulation compression dust absorption mouth for road sweeper |
| CN108166427A (en) * | 2018-01-31 | 2018-06-15 | 江苏天普星环境科技有限公司 | A kind of fast-type sweeper running gear |
| CN114652206B (en) * | 2022-03-25 | 2022-11-25 | 浙江大学 | Cleaning robot |
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| CN203514239U (en) * | 2013-09-18 | 2014-04-02 | 中联重科股份有限公司 | Cleaning suction nozzle and road cleaning vehicle |
| CN104674734A (en) * | 2013-11-28 | 2015-06-03 | 中联重科股份有限公司 | Suction nozzle and sanitation machine |
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| JP4069410B2 (en) * | 2002-04-25 | 2008-04-02 | 豊和工業株式会社 | Cleaning device for maintaining drainage pavement functions |
| CN202543844U (en) * | 2012-03-10 | 2012-11-21 | 合肥华信电动科技发展有限公司 | Height adjustment mechanism for front sweeper on electric road sweeper |
| CN203007888U (en) * | 2013-01-15 | 2013-06-19 | 中联重科股份有限公司 | Cleaning equipment and suction nozzle for cleaning equipment |
| CN203320458U (en) * | 2013-06-14 | 2013-12-04 | 中联重科股份有限公司 | Cleaning suction nozzle and cleaning vehicle |
| CN203569509U (en) * | 2013-11-21 | 2014-04-30 | 上海神舟汽车节能环保有限公司 | Dust-absorption vehicle dust-absorption opening capable of being opened |
| CN203583414U (en) * | 2013-11-28 | 2014-05-07 | 中联重科股份有限公司 | Suction nozzle and motor sweeper |
| CN103643647A (en) * | 2013-12-16 | 2014-03-19 | 邓爱娜 | Suspension type cleaning device |
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| CN203514239U (en) * | 2013-09-18 | 2014-04-02 | 中联重科股份有限公司 | Cleaning suction nozzle and road cleaning vehicle |
| CN104674734A (en) * | 2013-11-28 | 2015-06-03 | 中联重科股份有限公司 | Suction nozzle and sanitation machine |
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