CN109235343B - Suction nozzle structure and cleaning equipment - Google Patents
Suction nozzle structure and cleaning equipment Download PDFInfo
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- CN109235343B CN109235343B CN201811117699.4A CN201811117699A CN109235343B CN 109235343 B CN109235343 B CN 109235343B CN 201811117699 A CN201811117699 A CN 201811117699A CN 109235343 B CN109235343 B CN 109235343B
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- suction
- nozzle
- top plate
- chamber
- suction nozzle
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
- E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction nozzles
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning In General (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Abstract
The invention relates to a cleaning suction nozzle and discloses a suction nozzle structure and cleaning equipment, wherein the suction nozzle structure comprises a suction nozzle body (1), a suction pipe (2) and a spray pipe (3), the suction nozzle body (1) comprises a top plate (11), an air inlet (12) and an air outlet (13) are arranged on the top plate (11), the suction pipe (2) is communicated with the air outlet (13) at the outer side of the top plate (11), the spray pipe (3) is communicated with the air inlet (12) at the inner side of the top plate (11), the spray pipe (3) is arranged at the front side of the suction pipe (2), and the lower end of the spray pipe (3) inclines backwards relative to the upper end of the spray pipe (3). Through above-mentioned technical scheme, the spray tube can form the jet air current in the suction cavity for the rubbish on the surface of waiting to clean relative with the suction cavity is blown up, prolongs the dwell time of rubbish in the suction cavity, thereby has improved the ability of the suction rubbish of suction nozzle structure.
Description
Technical Field
The invention relates to a cleaning suction nozzle, in particular to a suction nozzle structure and cleaning equipment.
Background
Some sweeping apparatuses are installed with a suction nozzle piece that can be connected to a trash storage container, inside of which a negative pressure is formed, through a suction pipe, and an opening of the suction nozzle piece is directed toward a road surface to suck trash on the road surface by the negative pressure so that the trash is sucked into the trash storage container.
The cleaning speed of the suction nozzle is related to the negative pressure inside the suction nozzle and the time for sucking the garbage. The stronger the negative pressure inside the suction nozzle, the stronger the cleaning ability of the suction nozzle, however, the negative pressure inside the suction nozzle is generated by the suction fan, increasing the negative pressure inside the suction nozzle, and increasing the fan energy consumption and the operation noise. In addition, the faster the moving speed of the suction nozzle is, the shorter the suction action time of the garbage in the suction nozzle body is, when the suction action time of the garbage is less than the minimum action time of the garbage which can be sucked and picked up, the garbage can not be sucked to a garbage storage container connected with the suction nozzle, namely after the moving speed of the suction nozzle body is increased to a certain speed, the road garbage can not be cleaned without increasing the negative pressure in the suction nozzle; therefore, for the conventional suction nozzle, on the premise that the cleaning capacity needs to be met, the cleaning speed of the suction nozzle cannot be greatly increased, namely, the conventional suction nozzle has a relatively low critical cleaning speed.
Disclosure of Invention
The invention aims to provide a suction nozzle structure to solve the problem of insufficient suction capacity of the suction nozzle structure.
In order to achieve the above object, the present invention provides a suction nozzle structure, wherein the suction nozzle structure includes a suction nozzle body, a suction pipe and a nozzle pipe, the suction nozzle body includes a top plate and a baffle plate disposed at an edge of the top plate, the top plate and the baffle plate enclose a suction cavity with an open bottom, the top plate is provided with an air inlet and an air outlet, the suction pipe is communicated with the air outlet at an outer side of the top plate, the nozzle pipe is communicated with the air inlet at an inner side of the top plate, the nozzle pipe is disposed at a front side of the suction pipe, and a lower end of the nozzle pipe is inclined backward relative to an upper end of the nozzle pipe.
Preferably, the suction nozzle structure further comprises a flow guide cover arranged on the outer surface of the top plate, the flow guide cover and the top plate form a flow guide cavity with a forward opening, and the air inlet is communicated with the flow guide cavity.
Preferably, the air guide sleeve comprises an air guide top plate, two air guide side plates and an air guide rear end plate, and the lower part of the air guide rear end plate is inclined backwards relative to the upper part.
Preferably, the angle of inclination of the rear flow-guide end plate is the same as the angle of inclination of the nozzle, and the inner cavity of the nozzle is tangent to the inner surface of the rear flow-guide end plate.
Preferably, the nozzle has a flat structure, and the nozzle has a strip-shaped inlet and a strip-shaped outlet extending in a width direction of the nozzle body.
Preferably, the suction chamber includes a first chamber disposed at the front, a second chamber disposed at the middle, and a third chamber disposed at the rear, the first chamber having a first width, the third chamber having a second width, the first width being greater than the second width, the second chamber tapering from the first width to the second width, the air outlet being directly connected to the third chamber, and a lower end of the nozzle tube being disposed in the second chamber.
Preferably, the baffle comprises an elastically deformable flexible baffle provided at a front end of the nozzle body.
Preferably, the upper end of the suction pipe is inclined rearward with respect to the lower end of the suction pipe, and an intersection point of the extension direction of the nozzle pipe and the bottom surface of the nozzle body is located forward of an intersection point of the central axis of the suction pipe and the bottom surface of the nozzle body.
Preferably, rollers are arranged on two sides of the suction nozzle body.
In addition, the invention also provides cleaning equipment, wherein the cleaning equipment is provided with the suction nozzle structure in the scheme.
Through the technical scheme, the jet pipe can form jet air flow in the suction cavity, so that garbage on a road surface to be cleaned opposite to the suction cavity is blown up, the idle staying time of the garbage in the suction cavity is prolonged, and the garbage suction capacity of the suction nozzle structure is improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a perspective view of a suction nozzle configuration according to an embodiment of the present invention;
fig. 2 is a sectional view of a suction nozzle structure according to an embodiment of the present invention.
Description of the reference numerals
1 suction nozzle body 2 suction pipe
3 spray pipe 4 air guide sleeve
5 roller
11 top plate 12 air inlet
13 air outlet 14 first cavity
15 second cavity 16 third cavity
17 Flexible baffle
41 diversion top plate 42 diversion side plate
43 flow guiding rear end plate
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention provides a suction nozzle structure, which comprises a suction nozzle body 1, a suction pipe 2 and a spray pipe 3, wherein the suction nozzle body 1 comprises a top plate 11 and a baffle plate arranged at the edge of the top plate 11, the top plate 11 and the baffle plate enclose a suction cavity with an open bottom, an air inlet 12 and an air outlet 13 are arranged on the top plate 11, the suction pipe 2 is communicated with the air outlet 13 at the outer side of the top plate 11, the spray pipe 3 is communicated with the air inlet 12 at the inner side of the top plate 11, the spray pipe 3 is arranged at the front side of the suction pipe 2, and the lower end of the spray pipe 3 inclines backwards relative to the upper end of the spray pipe 3.
The suction nozzle structure can be used for cleaning equipment, and the rubbish on the surface to be cleaned is sucked away, wherein, the suction nozzle structure comprises a top plate 11 and a plurality of baffle plates, the open suction cavity in bottom is enclosed by the top plate 11 and the baffle plates, an air outlet 13 is arranged on the top plate 11, a suction pipe 2 is communicated with the air outlet 13, and negative pressure equipment (such as a suction fan) connected with the suction pipe 2 can enable the suction pipe 2 and the suction cavity to form negative pressure, so that suction airflow is formed, so that the rubbish is sucked away through the suction airflow and is conveyed to a rubbish storage container connected with the suction pipe.
Wherein, still be provided with air inlet 12 on the roof 11 to air inlet 12 department is connected with spray tube 3, and under the negative pressure effect in the suction cavity, spray tube 3 inhales the air current through air inlet 12 from the outside of suction nozzle body 1 to form the jet current in the lower extreme of spray tube 3, the jet current can be blown up the rubbish on the surface of waiting to clean, prolongs the dwell time of rubbish in the suction cavity, improves the ability of suction nozzle structure suction rubbish. In particular, the nozzle 3 is disposed at the front side of the suction pipe 2, and the lower end of the nozzle 3 is inclined backward with respect to the upper end, so that the direction of the jet air flow is also inclined backward, and therefore, the jet air flow can roll up the garbage on the road surface to be cleaned, and the dead time of the garbage in the suction nozzle is prolonged, thereby improving the garbage suction capability of the suction nozzle structure.
In addition, the suction nozzle structure further comprises a flow guide cover 4 arranged on the outer surface of the top plate 11, the flow guide cover 4 and the top plate 11 enclose a flow guide cavity with a forward opening, and the air inlet 12 is communicated with the flow guide cavity. The volume of a flow guide cavity formed by the flow guide cover 4 and the top plate 11 is larger than the flow area of the air inlet 12, so that the airflow collection and gathering effects can be achieved, and more airflow enters the spray pipe 3. In addition, the suction nozzle structure has a specific direction of movement along which it tends to move in use (without excluding, of course, moving the suction nozzle structure in other ways), the opening of the diversion chamber is arranged forward, and forward air can enter the diversion chamber "automatically" relative to the suction nozzle structure, increasing the velocity of the jet air stream exiting from the nozzle 3 and improving the ability of the jet air stream to blow up debris.
Specifically, the air guide sleeve 4 includes a guide top plate 41, two guide side plates 42, and a guide rear end plate 43, and a lower portion of the guide rear end plate 43 is inclined rearward with respect to an upper portion. As shown in fig. 1 and 2, the air guide sleeve 4 includes a top guide plate 41, side guide plates 42 disposed on two sides of the top guide plate 41, and a rear guide plate 43 disposed at the rear end of the top guide plate 41, and the air guide sleeve 4 is fastened to the top plate 11 to form a guide cavity with a front opening. The rear diversion end plate 43 is an inclined plate, i.e. the lower part is inclined backwards, under the action of the rear diversion end plate 43, the air flow reaches the rear diversion end plate 43 and then moves in a direction substantially parallel to the inner surface of the rear diversion end plate 43 under the guidance of the rear diversion end plate 43, and can smoothly enter the spray pipe 3 through the air inlet 12.
Further, the angle of inclination of the rear baffle plate 43 is the same as the angle of inclination of the nozzle 3, and the inner cavity of the nozzle 3 is tangential to the inner surface of the rear baffle plate 43. As shown in fig. 2, the angle of inclination of the flow guiding rear end plate 43 is the same as the angle of inclination of the nozzle 3, and the internal cavity (phantom) of the nozzle 3 is tangential to the inner surface of the flow guiding rear end plate 43, so that the airflow flowing along the flow guiding rear end plate 43 can enter the nozzle 3 directly (the inner diameter of the nozzle 3 is aligned with the air inlet 12) without substantially changing direction.
In addition, the nozzle 3 has a flat structure, and the nozzle 3 has a strip-shaped inlet and a strip-shaped outlet extending in the width direction of the nozzle body. The nozzle 3 has a flat cavity, in particular a strip-shaped inlet through which more air flow can be sucked and a strip-shaped outlet through which the waste from the road surface to be cleaned is blown over a greater width. In other embodiments, the nozzle 3 may be a circular tube, and a plurality of nozzles 3 may be provided in the width direction.
In particular, the suction chamber comprises a first chamber 14 arranged at the front, a second chamber 15 arranged at the middle and a third chamber 16 arranged at the rear, the first chamber 14 having a first width and the third chamber 16 having a second width, the first width being greater than the second width, the second chamber 15 tapering from the first width to the second width, the air outlet 13 being directly connected to the third chamber 16, the lower end of the nozzle tube 3 being arranged in the second chamber 15. As shown in fig. 1, the suction nozzle body 1 generally comprises three sections arranged in the front-rear direction, the front section with larger width defines the first cavity 14, the middle section with gradually reduced width defines the second cavity 15, the rear section with smaller width defines the third cavity 16, the front first cavity 14 can collect the garbage in the suction cavity in a wider range, the middle second cavity 15 enables the garbage flow to gradually reduce the width and converge to the middle position, and finally the garbage is gathered in the suction cavity with the smallest width at the rear part, namely the structure can realize the collection of the garbage. Further, an air outlet 13 is provided on the top plate 11 at the third chamber 16 to suck the collected garbage; in addition, the lower end, i.e. the outlet end, of the lance 3 is arranged in the second chamber 15, i.e. the outlet end of the lance 3 needs to be located before the suction pipe 2, and the waste can be blown up in the second chamber 15 having a smaller width.
In addition, the baffle includes an elastically deformable flexible baffle 17 provided at the front end of the nozzle body 1. The flexible baffle 17 can deform under the action of external garbage collision, garbage with large size is allowed to enter the suction cavity, and after the flexible baffle 17 returns to the original position, the gap between the front end and the road surface to be cleaned cannot be too large.
In addition, the upper end of the suction pipe 2 is inclined rearward with respect to the lower end of the suction pipe 2, and the intersection point of the extension direction of the nozzle 3 and the bottom surface of the nozzle body 1 is located forward of the intersection point of the central axis of the suction pipe 2 and the bottom surface of the nozzle body 1. The bottom surface of the nozzle body 1 is the plane of the lower edge of each baffle, that is, the jet air stream formed by the jet pipe 3 impinges on the surface to be cleaned at a position approximately in front of the position of the suction pipe 2 facing the surface to be cleaned (when the bottom surface of the nozzle body 1 is at a small distance from the surface to be cleaned), which allows the suction pipe 2 to be directed at the debris blown by the jet air stream, facilitating the debris to enter the suction pipe 2 more smoothly.
In addition, rollers 5 are arranged on two sides of the suction nozzle body 1. The roller 5 can support the suction nozzle body 1 on the surface to be cleaned, so that the bottom of the suction nozzle body 1 keeps a proper interval with the surface to be cleaned, and the friction between the suction nozzle body 1 and the surface to be cleaned is avoided.
In addition, the invention also provides cleaning equipment, wherein the cleaning equipment is provided with the suction nozzle structure in the scheme. The cleaning apparatus may be a sweeper truck or the like, and may include a dustbin, a suction fan, etc., the suction pipe 2 of the suction nozzle structure is connected to the dustbin, and the suction fan is disposed in the dustbin to form a negative pressure in the dustbin by outwardly discharging an air current, thereby forming a negative pressure and a suction air current in the suction pipe 2 and the suction cavity to suck the garbage on the surface to be cleaned.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (9)
1. A suction nozzle structure is characterized in that the suction nozzle structure comprises a suction nozzle body (1), a suction pipe (2) and a spray pipe (3), the suction nozzle body (1) comprises a top plate (11) and a baffle arranged at the edge of the top plate (11), the top plate (11) and the baffle enclose a suction cavity with an open bottom, an air inlet (12) and an air outlet (13) are arranged on the top plate (11), the suction pipe (2) is communicated with the air outlet (13) at the outer side of the top plate (11), the spray pipe (3) is communicated with the air inlet (12) at the inner side of the top plate (11), the spray pipe (3) is arranged at the front side of the suction pipe (2), the lower end of the spray pipe (3) inclines backwards relative to the upper end of the spray pipe (3), and the suction nozzle structure further comprises a flow guide cover (4) arranged on the outer surface of the top plate (11), the air guide cover (4) and the top plate (11) enclose a guide cavity with a forward opening, and the air inlet (12) is communicated with the guide cavity.
2. A nozzle arrangement according to claim 1, wherein the air guide (4) comprises a top air guide plate (41), two air guide side plates (42) and an air guide rear end plate (43), the lower part of the air guide rear end plate (43) being inclined rearwardly with respect to the upper part.
3. A nozzle arrangement according to claim 2, wherein the angle of inclination of the flow-directing rear end plate (43) is the same as the angle of inclination of the nozzle tube (3), and the internal cavity of the nozzle tube (3) is tangential to the inner surface of the flow-directing rear end plate (43).
4. A nozzle arrangement according to claim 1, wherein said nozzle tube (3) is of a flat construction, said nozzle tube (3) having a strip-shaped inlet and a strip-shaped outlet extending in the width direction of said nozzle body.
5. A nozzle arrangement as claimed in claim 1, characterized in that the suction chamber comprises a first chamber (14) arranged in the front, a second chamber (15) arranged in the middle and a third chamber (16) arranged in the rear, the first chamber (14) having a first width and the third chamber (16) having a second width, the first width being greater than the second width, the second chamber (15) tapering from the first width to the second width, the air outlet (13) being connected directly to the third chamber (16), the lower end of the nozzle tube (3) being arranged in the second chamber (15).
6. A nozzle arrangement according to claim 1, wherein said flap comprises an elastically deformable flexible flap (17) provided at the front end of the nozzle body (1).
7. A nozzle arrangement according to claim 1, characterized in that the upper end of the suction tube (2) is inclined rearwardly with respect to the lower end of the suction tube (2), and that the intersection point of the extension direction of the nozzle tube (3) and the bottom surface of the nozzle body (1) is located in front of the intersection point of the central axis of the suction tube (2) and the bottom surface of the nozzle body (1).
8. A nozzle arrangement according to claim 1, wherein said nozzle body (1) is provided with rollers (5) on both sides.
9. A cleaning device, characterized in that the cleaning device is provided with a suction nozzle configuration according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117699.4A CN109235343B (en) | 2018-09-21 | 2018-09-21 | Suction nozzle structure and cleaning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117699.4A CN109235343B (en) | 2018-09-21 | 2018-09-21 | Suction nozzle structure and cleaning equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109235343A CN109235343A (en) | 2019-01-18 |
| CN109235343B true CN109235343B (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811117699.4A Active CN109235343B (en) | 2018-09-21 | 2018-09-21 | Suction nozzle structure and cleaning equipment |
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| CN (1) | CN109235343B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485522B (en) * | 2019-01-25 | 2022-06-07 | 郑州宇通重工有限公司 | Gas-liquid two-phase washing suction nozzle and sanitation vehicle |
| CN110250996A (en) * | 2019-05-23 | 2019-09-20 | 郑成勋 | Injecting type air-breathing clearing apparatus |
| CN110359402B (en) * | 2019-07-18 | 2021-02-26 | 东莞市冠城园林绿化工程有限公司 | Fallen leaf sweeper with sweeping effect improved |
| CN111172927A (en) * | 2020-01-07 | 2020-05-19 | 咸阳华星环保设备有限公司 | High-speed high-pressure blowing-sucking type sucking disc for sanitation cleaning vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2892954Y (en) * | 2006-05-22 | 2007-04-25 | 李德荣 | Blowing and suction disc for street cleaning vehilce |
| DE202014005737U1 (en) * | 2014-07-15 | 2014-09-05 | Markus Pesch | Device for removing dust on unsealed surfaces |
| CN105568911B (en) * | 2014-11-07 | 2017-06-16 | 长沙中联重科环卫机械有限公司 | Clean- suction nozzle and cleaning car |
| CN105625240B (en) * | 2014-11-07 | 2017-08-29 | 长沙中联重科环境产业有限公司 | Cleaning suction nozzle and car for cleaning |
| CN105625245B (en) * | 2014-11-07 | 2018-03-23 | 长沙中联重科环境产业有限公司 | Clean- suction nozzle and cleaning car |
| CN108343015B (en) * | 2018-02-07 | 2019-11-01 | 长沙中联重科环境产业有限公司 | Suction nozzle and road sweeper for road sweeper |
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| CN109235343A (en) | 2019-01-18 |
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