Summary of the invention
The object of the invention is to provide a kind of Clean-suction nozzle and cleaning cart, can improve the service behaviour of Clean-suction nozzle.
First aspect present invention provides a kind of Clean-suction nozzle, comprising: housing, and housing has suction nozzle inner chamber; Suction inlet, suction inletBe arranged at the top of housing and be communicated with suction nozzle inner chamber; Gas supplementing opening, the top that gas supplementing opening is arranged at housing is communicated with suction nozzle inner chamber,And gas supplementing opening is than the edge, front of the more close suction nozzle inner chamber of suction inlet.
Further, Clean-suction nozzle also comprises adjusting device, and the area of passage of gas supplementing opening arranges by adjusting device adjustable ground.
Further, adjusting device comprises: controllable register, and controllable register arranges convertibly with respect to gas supplementing opening position; DriveDevice, drives and is connected to drive controllable register to change the area of passage of gas supplementing opening with controllable register.
Further, adjusting device also comprises guider, and controllable register moves under the guide effect of guider.
Further, gas supplementing opening comprises multiple tonifying Qi hole, and arrange along left and right directions in multiple tonifying Qi hole.
Further, gas supplementing opening is positioned at the middle part of the left and right directions of suction nozzle, and symmetrical distribution.
Further, suction nozzle has the branch of parting on the left side and parts branch on the right side, at least one branching portion, comprises gas supplementing opening.
Further, gas supplementing opening comprises a bar hole, and bar hole extends along left and right directions.
Further, the position of gas supplementing opening meets following condition: a=ξ1Htan θ, wherein, a is in gas supplementing opening center and suction nozzleThe distance on the edge, front in chamber, h is the height of suction nozzle inner chamber, θ be suction nozzle inner chamber antetheca with by antetheca bottom sides along and verticalAngle between suction nozzle base plane, ξ1For constant, and 0.5≤ξ1≤1.5。
Further, the size of gas supplementing opening meets following condition: b=ξ2D, wherein, b is wide along fore-and-aft direction of gas supplementing openingDegree, d is the road clearance of suction nozzle under in working order, ξ2For constant, and 0.5≤ξ2≤3。
Further, gas supplementing opening comprises multiple tonifying Qi hole, and the position between multiple tonifying Qi hole meets following condition: l=ξ3B, itsIn, l is the centre-to-centre spacing in adjacent tonifying Qi hole, b is the width along fore-and-aft direction of gas supplementing opening, ξ3For constant, and 0.5≤ξ3≤4。
Further, the size of gas supplementing opening meets following condition: A=ξ4Ld, wherein, the gross area that A is gas supplementing opening, L inhalesThe width of the left and right directions of mouth, d is the road clearance of suction nozzle under in working order, ξ4For constant, and 0.1≤ξ4≤2。
Second aspect present invention provides a kind of cleaning cart, comprises the Clean-suction nozzle of any one in first aspect present invention. FurtherGround, Clean-suction nozzle comprises adjusting device, the area of passage of the gas supplementing opening of suction nozzle arranges by adjusting device adjustable ground, cleanCar also comprises control set for adjusting, and control set for adjusting is for controlling to adjust the action of device.
Further, control set for adjusting comprises: operating speed detecting unit, for detection of the speed of a motor vehicle of cleaning cart; Quantity of refuse senseAnswer unit, for detection of the quantity of refuse in suction nozzle front; Control module, control module respectively with operating speed detecting unit, rubbishCommunication is connected amount sensing unit with adjusting device, and control module is moving according at least one the control and regulation device in the speed of a motor vehicle and quantity of refuseDo.
According to Clean-suction nozzle of the present invention and cleaning cart, owing to being designed with gas supplementing opening on suction nozzle, gas supplementing opening is arranged at housingTop is communicated with suction nozzle inner chamber, and gas supplementing opening is than the edge, front of the more close suction nozzle inner chamber of suction inlet. From hydrodynamics mechanism,Under the effect of suction nozzle inner chamber negative pressure, air-flow, from suction nozzle chamber outer wall enters, can form the air-flow that one flow velocity is higher. At streamUnder bulk viscosity effect, can drive its air motion around compared with high gas flow, near air speed improving. When air-flow is from housingThe gas supplementing opening at top, front enter after suction nozzle inner chamber, can form one high velocity air and flow to suction nozzle intracavity bottom, paste ground motion oneAfter segment distance, upwards promote and enter suction inlet, therefore, for the Clean-suction nozzle of prior art, enter suction by gas supplementing openingThe high velocity air of mouth inner chamber can improve speed and the flow of the air-flow in Clean-suction nozzle region near the ground, improves ground refuse and kicks upEfficiency, and can strengthen flow velocity and the flow of the air-flow in the region, suction nozzle inner chamber front upper place of Clean-suction nozzle, be conducive to kick upRubbish be transported to suction inlet, thereby can improve efficiency and the conveying capacity of rubbish in suction nozzle inner chamber that rubbish is kicked up from ground,Strengthen suction nozzle and inhale scavenge ability, therefore improve the service behaviour of Clean-suction nozzle.
Detailed description of the invention
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail. It should be noted that, in the situation that not conflicting,Feature in embodiment and embodiment in the application can combine mutually.
It should be noted that the term that used is only in order to describe detailed description of the invention here, but not intention restriction is according to this ShenIllustrative embodiments please. As used herein, unless context explicitly points out in addition, otherwise singulative is also intended toComprise plural form, in addition, it is to be further understood that when using in this manual while belonging to " comprising " and/or " comprising ", itsIndicate and have feature, step, operation, device, assembly and/or their combination.
In the present invention, upper and lower to refer to the upper and lower of Clean-suction nozzle under in working order to, front and rear direction refers toClean-suction nozzle direction consistent with the fore-and-aft direction of cleaning cart in working order time, left and right directions is the right and left during in the face of frontTo.
Introducing as background technology, there is the poor technical problem of the service behaviour of Clean-suction nozzle in prior art. For solvingThis technical problem, inventor explores and analyzes the poor reason of Clean-suction nozzle service behaviour of above prior art.While finding the operating speed quickening of cleaning cart, the Clean-suction nozzle of prior art picks up action time minimizing to the suction of rubbish, more and moreMany rubbish does not suck suction inlet in time just from suction nozzle bottom " escape ", and the rubbish meeting showed increased that causes suction nozzle rear portion to omit is cleanCar clean-up performance less stable, along with its capacity variation that absorbs rubbish of variation of operating speed is larger, when operating speed increasesTime, its ability that absorbs rubbish sharply reduces; And the variation of the Clean-suction nozzle terrain clearance of prior art has directly affected suction nozzleSuction, when travelling to pavement roughness road conditions, suction nozzle suction is unstable, heap shape rubbish is intermittently leaked in suction inlet below.
Fig. 3 is the suction inlet front air motion schematic diagram of the Clean-suction nozzle of prior art. As shown in Figure 3, by hydrodynamics machineManage known, air-flow after the road clearance in suction inlet front enters, have obvious subsides ground motion trend (effect phenomenon near the ground,See a district that in Fig. 3, A air-flow forms), cause the relatively low whirlpool of formation speed in suction nozzle inner chamber, see B air-flow in Fig. 3.The effect in the air-flow a near the ground district being formed by A air-flow is to kick up ground refuse to suction nozzle inner chamber, when ground refuse thicker or clearThe operating speed of clean car is very fast, causes part rubbish not kick up from ground. Formed the b district that is positioned at inner chamber top by B air-flow,The air velocity in this b district is lower, is unfavorable for making the rubbish of kicking up to be transported in suction inlet, causes rubbish to be accumulated in suction nozzle inner chamber,Reduce pumping efficiency.
For above technical problem, on the above basis of exploring and analyze, inventor has proposed a kind of Clean-suction nozzle.
As shown in Fig. 4 to Figure 11, Clean-suction nozzle of the present invention comprises housing, suction inlet and gas supplementing opening. Housing has suction nozzle inner chamber.Suction inlet is arranged at the top of housing and is communicated with suction nozzle inner chamber. The top that gas supplementing opening is arranged at housing is communicated with suction nozzle inner chamber, and,Gas supplementing opening is than the edge, front of the more close suction nozzle inner chamber of suction inlet.
Fig. 8 is the suction inlet front air motion schematic diagram of the Clean-suction nozzle of the first embodiment. Below in conjunction with Fig. 8, the present invention is describedThe advantage of Clean-suction nozzle.
This Clean-suction nozzle is designed with gas supplementing opening on suction nozzle, and the top that gas supplementing opening is arranged at housing is communicated with suction nozzle inner chamber, and,Gas supplementing opening is than the edge, front of the more close suction nozzle inner chamber of suction inlet. From hydrodynamics mechanism, under the effect of suction nozzle inner chamber negative pressure,Air-flow, from suction nozzle chamber outer wall enters, can form the air-flow that one flow velocity is higher. Under fluid viscosity effect, compared with high gas flow meetingDrive its air motion around, near air speed improving. When air-flow enters suction from the gas supplementing opening at the top, front of housingAfter mouth inner chamber, can form one high velocity air and flow to suction nozzle intracavity bottom, paste after ground motion one segment distance, upwards promote and enter suctionMouthful, therefore, for the Clean-suction nozzle of prior art, the high velocity air that enters suction nozzle inner chamber by gas supplementing opening is (in Fig. 8C air-flow) can improve air-flow (the A air-flow in Fig. 8) speed in Clean-suction nozzle region near the ground (a district in Fig. 8)Degree and flow, improve the ground refuse efficiency of kicking up, and can strengthen suction nozzle inner chamber front upper place region (Fig. 8 of Clean-suction nozzleIn b district) flow velocity and the flow of air-flow (the B air-flow in Fig. 8), the rubbish that is conducive to be kicked up is transported to suction inlet, fromAnd can improve efficiency and the conveying capacity of rubbish in suction nozzle inner chamber that rubbish is kicked up from ground, strengthen suction nozzle and inhale scavenge ability,Therefore improve the service behaviour of Clean-suction nozzle.
Wherein, the reason that b district air-flow is strengthened is on the one hand the air-flow (the C air-flow in Fig. 8) that entered by gas supplementing opening, and b district flows throughBe pooled to suction inlet, be that on the other hand the C air velocity that gas supplementing opening enters is higher, improve speed because siphonage drives B air-flowDegree.
Below in conjunction with Fig. 4 to Fig. 8, first embodiment of the invention is described further. Fig. 4 is the clear of first embodiment of the inventionThe perspective view of a clean angle with suction nozzle; Fig. 5 is another angle vertical of the Clean-suction nozzle of the first embodimentBody structure schematic diagram; Fig. 6 is the plan structure schematic diagram (not containing adjusting device) of the Clean-suction nozzle of the first embodiment; Fig. 7 isThe F of Fig. 6 ?F to cross section simplified schematic diagram.
The Clean-suction nozzle 100 of the first embodiment comprises housing 120, suction inlet 110 and gas supplementing opening 130. Housing 120 has suction nozzleInner chamber 123. Housing 120 mainly comprises top board 121, front apron 122 and polylith coaming plate, and by top board 121, front apron 122Surround suction nozzle inner chamber 123 with polylith coaming plate. Suction inlet 110 is arranged on the top board 121 of housing 120 and is communicated with suction nozzle inner chamber 123.Gas supplementing opening 130 is also arranged on the top board 121 of housing 120 and is communicated with suction nozzle inner chamber. Gas supplementing opening 130 more leans on than suction inlet 110The edge, front of nearly suction nozzle inner chamber 123.
Preferably, Clean-suction nozzle 100 also comprises adjusting device 140, and the area of passage of gas supplementing opening 130 is by adjusting device 140Adjustable ground arranges.
In the first embodiment, adjusting device comprises controllable register 141, guider 142 and drive unit 143 (referring to Figure 12).Controllable register arranges convertibly with respect to gas supplementing opening position. Drive unit 143 drives to be connected to drive with controllable register 141 and adjustsJoint baffle plate 141 changes the area of passage of gas supplementing opening 130. Controllable register 141 preferably moves along fore-and-aft direction. The first embodimentMiddle controllable register 141 moves under the guide effect of guider 142. Guider 142 comprises particularly and is arranged on gas supplementing openingThe slide rail extending along fore-and-aft direction at two ends, left and right, the two ends, left and right of controllable register 141 are mounted slidably on slide rail. Thereby,Controllable register 141, under the position-limiting action of slide rail, can move along fore-and-aft direction. Preferably, controllable register 141 can be positioned at firstBetween extreme position and the second extreme position. Make the area of passage minimum of gas supplementing opening 130 at the first extreme position controllable register 141,Be for example zero; Make the area of passage maximum of gas supplementing opening 130 at the second extreme position controllable register 141.
Preferably, gas supplementing opening is positioned at the middle part of the left and right directions of suction nozzle, and symmetrical distribution. In the first embodiment, gas supplementing opening130 comprise multiple tonifying Qi hole, and arrange along left and right directions in multiple tonifying Qi hole. Wherein, tonifying Qi hole be shaped as circle.
In order effectively to utilize the high velocity air that enters suction nozzle inner chamber 123 through gas supplementing opening 130 to improve better the service behaviour of suction nozzle,Preferably, position and the size etc. of gas supplementing opening are limited. Represent that the position of gas supplementing opening and the symbol of size mark in Fig. 6 andIn Fig. 7.
The rational position of gas supplementing opening 130 is relevant with suction nozzle inner chamber internal gas flow feature. Preferably, the position of gas supplementing opening 130 meetsFollowing condition: a=ξ1Htan θ, wherein, a is the distance on the edge, front of gas supplementing opening 130 centers and suction nozzle inner chamber, h is suction nozzleThe height of inner chamber, θ be suction nozzle inner chamber antetheca and by antetheca bottom sides along and perpendicular to the angle between suction nozzle base plane,ξ1For constant, and 0.5≤ξ1≤1.5。
In addition preferably, the size of gas supplementing opening 130 meets following condition: b=ξ2D, wherein, b be gas supplementing opening 130 along frontRear to width, d is the road clearance of suction nozzle under in working order, ξ2For constant, and 0.5≤ξ2≤ 3. Gas supplementing opening 130The size of width b along fore-and-aft direction relevant with quantity of refuse with the operating speed of cleaning cart, operating speed is little, quantity of refuse is few, ξ2Value is got value less than normal, and operating speed is large, quantity of refuse is many, ξ2Value is got value bigger than normal.
In addition preferably, the position between multiple tonifying Qi hole of gas supplementing opening 130 meets following condition: l=ξ3B, wherein, l is phaseThe centre-to-centre spacing in adjacent tonifying Qi hole, ξ3For constant, and 0.5≤ξ3≤4。
In addition preferably, the size of gas supplementing opening 130 meets following condition: A=ξ4Ld, wherein, A is the total of gas supplementing opening 130Area, L is the width of the left and right directions of suction nozzle, ξ4For constant, and 0.1≤ξ4≤2。
Under design philosophy of the present invention, above Clean-suction nozzle can be done multiple variation. Below in conjunction with Fig. 9 to Figure 11 to thisThe bright second to the 4th embodiment carries out schematic illustration.
Fig. 9 is the perspective view of the Clean-suction nozzle of second embodiment of the invention.
The Clean-suction nozzle 200 of the second embodiment comprises housing 220, suction inlet 210 and gas supplementing opening 230. Different from the first embodiment, the housing 220 of the suction nozzle 200 of the second embodiment is wider, and suction nozzle 200 has the branch of parting on the left side and parts branch on the right side. ThisIn situation, preferably, at least one branching portion, comprise gas supplementing opening. In the second embodiment, i.e. parting on the left side in branch at suction nozzle 200The position of gas supplementing opening 230 that is provided with gas supplementing opening 230, the second embodiment is different with the gas supplementing opening 130 of the first embodiment, but secondThe version of the gas supplementing opening 230 of embodiment is identical with the gas supplementing opening 130 of the first embodiment.
Other unaccounted part of the second embodiment can be with reference to the first embodiment.
For example, in Fig. 9, although do not express adjusting device, can comprise in a second embodiment for changing benefitThe adjusting device of the area of passage of gas port 230. The structure of adjusting device can be identical with the adjusting device of the first embodiment. Certainly,Adjusting device also can be different from the adjusting device of the first embodiment, proposed to change the area of passage of gas supplementing opening in the present inventionThought and the prerequisite of the adjusting device of the first embodiment under, those skilled in the art can make the concrete structure of adjusting deviceSuitable change.
Again for example, the position of gas supplementing opening and dimensional requirement, also can arrange with reference to the first embodiment, specifically comprises gas supplementing opening 130The centre-to-centre spacing in the distance a on the edge, front of center and suction nozzle inner chamber, the width b along fore-and-aft direction of gas supplementing opening 130, adjacent tonifying Qi holeL and be the gross area A of gas supplementing opening 130.
Figure 10 is the plan structure schematic diagram of the Clean-suction nozzle of third embodiment of the invention.
The Clean-suction nozzle 300 of the 3rd embodiment comprises housing 320, suction inlet 310 and gas supplementing opening 330. Housing 320 comprises top board321 and front apron 322. The 3rd real embodiment is that from the difference of the first embodiment the shape in the included tonifying Qi hole of gas supplementing opening is different.As shown in figure 10, in the 3rd embodiment each tonifying Qi hole of gas supplementing opening 330 be shaped as square hole.
Other unaccounted part of the 3rd embodiment can be with reference to the first embodiment. Especially, wherein gas supplementing opening 130 centers and suctionThe centre-to-centre spacing l in the distance a on the edge, front of mouth inner chamber, the width b along fore-and-aft direction of gas supplementing opening 130, adjacent tonifying Qi hole and for mendArranging of the gross area A of gas port 130 all can be with reference to the first embodiment.
In addition, tonifying Qi hole can also be other shape, for example: rectangle, triangle etc.
Figure 11 is the plan structure schematic diagram of the Clean-suction nozzle of fourth embodiment of the invention.
The Clean-suction nozzle 400 of the 4th embodiment comprises housing 420, suction inlet 410 and gas supplementing opening 430. Housing 420 comprises top board421 and front apron 422. The 4th real embodiment is that from the difference of the first embodiment the shape of gas supplementing opening is different. As shown in figure 11,In the 4th embodiment, gas supplementing opening 430 is bar holes, and this bar hole extends along left and right directions.
Other unaccounted part of the 4th embodiment can be with reference to the first embodiment. Especially, in gas supplementing opening 130 centers and suction nozzleThe distance a on the edge, front in chamber, the width b along fore-and-aft direction of gas supplementing opening 130 and be that the gross area A of gas supplementing opening 130 can be with reference toOne embodiment arranges.
The present invention also provides a kind of cleaning cart, comprises Clean-suction nozzle, and wherein, Clean-suction nozzle is aforesaid Clean-suction nozzle.
Below the Clean-suction nozzle 100 that only comprises the first embodiment taking cleaning cart enters the cleaning cart of the preferred embodiment of the present invention as exampleRow explanation.
As shown in figure 12, in the cleaning cart of preferred embodiment, Clean-suction nozzle 100 comprises adjusting device, the benefit of suction nozzle 100The area of passage of gas port arranges by adjusting device adjustable ground. Cleaning cart also comprises control set for adjusting 500, control set for adjusting500 for controlling the action of adjusting device of suction nozzle 100.
Control set for adjusting comprises control module 510, operating speed detecting unit 520 and quantity of refuse sensing unit 530. Operation speedDegree detecting unit 510 is for detection of the speed of a motor vehicle of cleaning cart. Quantity of refuse sensing unit 520 is for detection of the rubbish in suction nozzle 100 frontsAmount. Control module 510 is connected with operating speed detecting unit 520, quantity of refuse sensing unit 530 and adjusting device communication respectively,Control module 510 is according to the adjusting device action of at least one the control suction nozzle 100 in the speed of a motor vehicle and quantity of refuse.
Operating speed detecting unit 520 detects the operating speed of cleaning cart, and by operating speed signal Input Control Element 510, doesWhat industry speed detection unit 520 was concrete can be tachymeter. Quantity of refuse sensing unit 530 detects ground refuse amount, and by quantity of refuseSignal Input Control Element 510, what quantity of refuse sensing unit 530 was concrete can be video camera. Control module 510 is to comprising operation speedDegree signal and ground refuse amount signal are processed at interior input signal, and to adjusting device 140 output drive signals. ControlThe comprised computer that unit 510 is concrete and display. Wherein, the drive unit 143 of control module 510 and adjusting device 140Communication connects, with by the control of drive unit 143 is controlled to adjust to device 140. Particularly, drive unit 143 is controlled and is adjustedThe controllable register 141 of regulating device 140 moves along fore-and-aft direction under the guide effect of guider 142, thereby changes gas supplementing opening130 area of passage. Drive unit 143 can be various forms, for example, can be pneumatic means, by air cylinder driven controllable register141 move.
The control of the cleaning cart of the present embodiment adjusting device to suction nozzle by control set for adjusting has realized gas supplementing opening to suction nozzleThe self adaptation of area of passage regulates. Thereby the service behaviour that is beneficial to suction nozzle remains at better state.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
1, improve efficiency and the conveying capacity of rubbish in suction nozzle inner chamber that rubbish is kicked up from ground, strengthen suction nozzle and inhale scavenge ability.
2, because gas supplementing opening has more stable air-flow, can reduce the variation of suction nozzle terrain clearance to the susceptibility of suction affects,Improve the stability of suction.
3. when operation Vehicle Driving Cycle is during in roughness pavement, tonifying Qi hole can ensure that suction nozzle has more stable air inflow, reduces road surfaceThe uneven influence degree to whole air inflow, improves suction nozzle job stabilization.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art, the present invention can have various modifications and variations. Within the spirit and principles in the present invention all, any amendment of doing, etc.With replacement, improvement etc., within all should being included in protection scope of the present invention.