CN209174184U - Electrodynamic type cleaning machine and cavitation jet spray head - Google Patents
Electrodynamic type cleaning machine and cavitation jet spray head Download PDFInfo
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- CN209174184U CN209174184U CN201821015035.2U CN201821015035U CN209174184U CN 209174184 U CN209174184 U CN 209174184U CN 201821015035 U CN201821015035 U CN 201821015035U CN 209174184 U CN209174184 U CN 209174184U
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Abstract
The utility model relates to a kind of electrodynamic type cleaning machines, comprising: shell, the shell include the handle for gripping, the inlet with the main part of the angled setting of the handle and for outside liquid to be introduced to the electrodynamic type cleaning machine；Functional component, the functional component include the motor of the pump and the driving pump work for conveying liquid outward；Liquid attachment attachment out, liquid attachment attachment and the handle out are located at the opposite two sides of the main part；It is characterized in that, the liquid attachment attachment out is configured as that cavitation jet spray head is allowed selectively to connect, the cavitation jet spray head includes liquid outlet pipe and the spout positioned at described liquid outlet pipe one end, the liquid outlet pipe is formed with the cavitation chamber that can be induced outside liquid into cavitation bubble, the outside liquid can be under pump pressurization, it is flow to the cavitation chamber from the inlet, and is sprayed outward by the spout.The cleaning ability of electrodynamic type cleaning machine can be improved in the utility model.
Description
Technical field
The utility model relates to a kind of electrodynamic type cleaning machine and cavitation jet spray heads more particularly to cavitation jet spray head and electricity
The application of dynamic formula cleaning machine.
Background technique
In family life and outdoor activities, requirement for cleaning is widely present always.
In the family life centered on family's garden, people usually need to clean balcony, aisle, outdoor desk-chair, burning
Grill, automobile, bicycle, garage, pet, garden instrument, window, swimming pool, perron etc..These articles are due to usage scenario
Outside house, the spots such as dirt, grease stain, leaf, dust accumulation can be inevitably stained with, it is extremely inconvenient to be cleaned with rag, needs
Water flow even high pressure water flow is used to carry out hydro-peening.In order to meet the demand, solution on the market is to provide household
Jetting machine, if Chinese patent CN1840246A disclose, these jetting machines usually have a host and one spray
Water tank and motor, water pump are arranged on host, the trigger switch of water spray is arranged on spray gun for rifle.These jetting machine volumes are larger,
Heavier-weight when switching in each operative scenario, carries trouble.For example, in household cleaning day, if necessary to clean one by one
Window, lane, step, automobile, that will carry back and forth jetting machine between different places.In addition, clear using high pressure
It needs to add water to water tank before washing machine, operation is also not simple enough.
In order to keep jetting machine more portable, facilitate user mobile and operation, much product on the market sacrifices height
The cleaning capacity for pressing cleaning machine obtains the Portable cleaning device of a kind of low-pressure, low-power, but its cleaning effect is had a greatly reduced quality.
And it is movable outdoors, such as in mountain-climbing, the cross-country, activity such as ride, camp, riding, steering a ship, since environment is more sticked on
Near-nature forest and activity is fierce, the apparatus and animal that activity is related to are more easier dirty, need to clean in time.For example, automobile, motor
After vehicle and bicycle travel in wild country, it is necessarily stained with soil, naval vessel raft etc. is after navigation, the mud water plant of hull attachment
It is also required to clear up.Horses and user can also perspire and foundry loam preferably shower in time or are rinsed, so as not to it is uncomfortable.At this
In a little usage scenarios, it is also very desirable to jetting machine have it is small in size, light-weight etc. portable preferential, while also to cleaning ability
Very high requirement is proposed, general Portable cleaning device is difficult the cleaning effect for accomplishing to require.
Based on the above reasons, it is high while there is the electrodynamic type cleaning machine of good cleaning capacity to be badly in need of a kind of portability.
Utility model content
To overcome the shortcomings of existing technologies, the problem to be solved by the utility model is to provide one kind to have weight small in size
Light and strong cleaning capacity novel electric cleaning machine.
The utility model solves technical solution used by prior art problem:
A kind of electrodynamic type cleaning machine, comprising: shell, the shell include for the handle of gripping, with the handle in angle
Spend the main part of setting and the inlet for outside liquid to be introduced to the electrodynamic type cleaning machine；Functional component, the function
Energy component includes the motor of the pump and the driving pump work for conveying liquid outward；Liquid attachment attachment out, the liquid out
Attachment attachment and the handle are located at the opposite two sides of the main part；It is characterized in that, the liquid attachment attachment out
Portion includes the liquid outlet being connected with the inlet, and the liquid attachment attachment out is configured as allowing cavitation jet spray head can
It selectively connects, the cavitation jet spray head includes liquid outlet pipe and the spout positioned at described liquid outlet pipe one end, the liquid out
Pipeline be formed with can by outside liquid induce at cavitation bubble cavitation chamber, the outside liquid can the pump pressurize under,
It is flow to the cavitation chamber from the inlet, and is sprayed outward by the spout.
Preferably, the liquid outlet pipe includes the admission chamber being connected to the liquid outlet, and the cavitation chamber is located at the spray
Between mouth and the admission chamber.
Preferably, the cavitation chamber is self-excitation chamber, and the liquid outlet pipe includes being set to the admission chamber and the cavitation chamber
Between top nozzle, the circulating face of top nozzle is less than the circulating face of admission chamber.
Preferably, it is formed on the self-excitation chamber inner wall opposite with the top nozzle at an acute angle through direction with liquid flow
Impingement area.
Preferably, the liquid outlet pipe further includes being connected to positioned at self-excitation chamber front end and with the self-excitation chamber under setting
Nozzle, in the free end of the lower nozzle, the range of the top nozzle and the lower nozzle diameter ratio is the notch setting
The diameter of 1.5-2.6, the self-excitation chamber and the lower nozzle is 6-7 than range, and the self-excitation chamber is intracavitary with the lower nozzle
Draw ratio range is 0.4-0.7.
Preferably, the admission chamber includes being arranged close to the connecting cavity of liquid outlet setting and close to the top nozzle
Adapter cavity, the adapter cavity are in gradually taper up on the direction that outside liquid flows through the liquid outlet pipe by the liquid outlet.
Preferably, the cavitation jet spray head is angle-style cavitation spray head, and the angle-style cavitation spray head includes successively arranging
The ratio range of the diameter of admission chamber, contraction chamber, speedup chamber and diffusion chamber, the length of the speedup chamber and the speedup chamber is 3-
5。
Preferably, the electrodynamic type cleaning machine is hand-hold washer, and the functional component is set in the shell, institute
The injection pressure limit for stating electrodynamic type cleaning machine is 2-15Mpa.
Compared with prior art, the utility model has the beneficial effects that under the premise of electrodynamic type cleaning machine keeps portability
Improve cleaning ability.
Detailed description of the invention
Above-described the purpose of this utility model, technical solution and beneficial effect can be realized by following accompanying drawings:
Fig. 1 is the front view of the jetting machine of the utility model first embodiment.
Fig. 2 is that electrodynamic type cleaning machine shown in FIG. 1 raises the schematic diagram of internal structure after first half-shell.
Fig. 3 is the cross-sectional view of the cavitation jet nozzle structure of electrodynamic type cleaning machine shown in FIG. 1.
Fig. 4 is the cross-sectional view of the cavitation jet spray head part of spray head cross-sectional view shown in Fig. 3.
Fig. 5 is the cavitation jet nozzle structure cross-sectional view of the second embodiment of the utility model.
Fig. 6 is the cavitation jet nozzle structure cross-sectional view of the 3rd embodiment of the utility model.
Fig. 7 is the cavitation jet nozzle structure cross-sectional view of the fourth embodiment of the utility model.
Fig. 8 is the cavitation jet nozzle structure cross-sectional view of the 5th embodiment of the utility model.
Fig. 9 is the cavitation jet spray head parameter schematic diagram of the sixth embodiment of the utility model.
Figure 10 is the cavitation jet nozzle structure cross-sectional view of the 7th embodiment of the utility model.
Figure 11 is the cavitation jet spray head parameter schematic diagram of the 7th embodiment of the utility model.
Figure 12 is the front view with the cavitation jet spray head of different length of electrodynamic type cleaning machine shown in FIG. 1.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms in fact
It is existing, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes public affairs to the utility model
The understanding for opening content is more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
As shown in Figure 1 to Figure 2 it is a kind of electrodynamic type cleaning machine 1, there is shell 10, shell 10 uses left and right Ha Fu structure,
It is formed by connecting by first half-shell and the second half-shell, shell 10 includes for the handle 106 of gripping and the angled setting of handle 106
Main part 108 and for by external water source introduce electrodynamic type cleaning machine 1 inlet 104.Electrodynamic type cleaning machine 1 further includes
Functional component, functional component specifically include pump 4 for conveying liquid outward, the motor 2 that transfer tube 4 works and connection motor
2 transmission mechanism 3 etc..Electrodynamic type cleaning machine 1 further includes that the liquid attachment out of the one end of setting on the housing 10 far from handle 106 is attached
Socket part 102, liquid attachment attachment 102 includes the liquid outlet being connected with inlet 104 out, external water source from inlet 104 into
Enter shell 10, is flowed out under the pressurization of pump 4 from liquid attachment attachment 102 out.Handle 106 is nearby provided with switch 5, specially
One trigger, for triggering, outside liquid enters in pump 4 and triggering motor 2 rotates.
In the present invention, electrodynamic type cleaning machine 1 provides energy by the battery pack 9 of DC power supply, and battery pack 9 is arranged in hand
One end of the separate main part 108 of handle 106.Certainly, electrodynamic type cleaning machine is not limited to power using battery pack, can also adopt
With Alternating Current Power Supply or other DC power supplies, such as vehicle power supply, battery etc..In addition, for the requirement of portability, the present invention
In electrodynamic type cleaning machine 1 itself do not have the water tank at storage water source, but be connected on shell by using outer water tube
Inlet 104, the water pipe other end are then connected to external water source, and external water source can be pond, tap etc..Certainly, electrodynamic type
The inlet 104 of cleaning machine 1 can also be directly connected to water storage container.
In the present invention, shell 10 is substantially in pistol shape, handle 106 and the angled setting of main part 108.Certainly, electronic
Formula cleaning machine 1 is not limited to hand-held, is also possible to a kind of split type, specifically includes motor 2 and 4 collection of pump being set to A seating master
In machine, the inlet on shell 10 is connect by modes such as water pipes with A seating host, and manipulator's gun shell is only needed when being cleaned
Switch 5 on 10 handle of body.
As shown in Fig. 2 and Figure 12, in the present invention, in order to improve cleaning ability, the liquid out on electrodynamic type cleaning machine 1 is attached
The selection of part attachment 102 is connected with cavitation jet spray head 110, and liquid attachment attachment 102 is arranged on the housing 10 far from handle out
106 one end, specifically, liquid attachment attachment 102 can be formed in a part on shell 10 out, so set, cavitation
Fluid jet nozzle 110 is directly connected on the housing 10；Liquid attachment attachment 102 is also possible to be connected to cavitation jet spray head 110 out
Additional rods between shell 10 add so set, cavitation jet spray head 110 is connect by additional rods with shell 10
Rod piece specifically can be short arm 111, extend rifle 211 or combinations thereof, naturally it is also possible to be can adjust rod length telescopic
Spray boom.
In the present embodiment, cavitation jet spray head 110 is connected by additional rods and the selection of shell 10, at this time additional rods
It is equivalent to out liquid attachment attachment 102.In one embodiment, cavitation jet spray head 110 and the connection of short arm 111 are formed short
Rifle cavitation jet spray head 11, referring to figure 3., cavitation jet spray head 110 are removably attachable to shell 10 by short arm 111, short
The other end of rifle 111 is additionally provided with conversion locking device 112, and 110 one end of cavitation jet spray head is inserted into short arm 111 by turning
Change the locking of locking device 112.Specifically, the elastic component, multiple that conversion locking device 112 includes retaining ring, acts on retaining ring
It is uniformly distributed in the ball of retaining ring Yu spray boom inner wall, the elastic force of elastic component makes retaining ring be in locked position, applies outer make every effort to overcome
The elastic force for taking elastic component makes retaining ring be in releasing position, can be inserted into and extracts cavitation jet spray head, unclamp retaining ring, cavitation is penetrated
Stream spray head can be locked in locked position.Certainly, conversion locking device is also possible to other structures, as long as spray can be locked and be discharged
Head.In another embodiment, extend rifle 211 and connect formation with above-mentioned short arm cavitation jet spray head 11 with extension rifle
Spear cavitation jet spray head 21, the other end for extending rifle 211 are connected with the shell 10 of electrodynamic type cleaning machine, please refer to Figure 12.This
In embodiment, the length of the short arm 111 of cavitation jet spray head 11 is 20-40cm, and corresponding short arm cavitation jet spray head passes through connection
Extend rifle 211 and form spear cavitation jet spray head, the length range of spear cavitation jet spray head is 50-100cm.In other implementations
In mode, the length of short arm 111 is also possible to longer range.Certainly, electrodynamic type cleaning machine 1 further includes that may connect to cavitation to penetrate
The Telescopic spray lance between spray head and shell is flowed, cavitation jet spray head connect to form telescopic cavitation jet spray with Telescopic spray lance
Head, the telescopic cavitation jet spray head have the first length spray head formed in a stretched state and are formed under compression
The second length spray head.
In the present embodiment, cavitation jet spray head includes Cavitation jet nozzle.In other embodiments, cavitation jet spray head is also
May include multiple plain nozzles, multiple plain nozzles correspond to different discharge pressure or sprinkling water type, multiple plain nozzles with
Cavitation jet nozzle can mutually switch, thus electrodynamic type cleaning machine can according to operating condition select different spray nozzles, spray different pressures or
Water type.
Portable electrodynamic type cleaning machine is in order to realize the purpose of portability, it has to all smaller using power and volume
Pump and motor, if included water storage device, the capacity of water storage device are generally also made more small and exquisite.In the present embodiment, for reality
Motor and pump collection are set to inside the shell 10 of pistol shape by existing portability, and entire electrodynamic type cleaning machine stores equipment without water source,
External water source is connected by water pipe, so that volume and weight is further decreased, specifically, the weight of the complete machine of electrodynamic type cleaning machine 1
Amount is less than 3Kg.
In practical applications, the electrodynamic type cleaning machine of portability is limited to its size and space, can not be by improving pump
The method of the flow of pressure improves cleaning capacity.It powers according to DC power supply, such as lithium electricity battery pack, due to depositing for battery pack
The electricity of storage is limited, is generally as short as the cruise duration of single charge more than ten minutes, longest only 40 minutes, some cleanings
It asks relatively high scene that can not disposably complete cleaning, needs repeatedly to charge, greatly reduce working efficiency.This is practical new
In type, by cavitation jet technical application on portable electrodynamic type cleaning machine, the small cleaning of electrodynamic type cleaning machine pressure is overcome
The shortcomings that scarce capacity.The electrodynamic type cleaning machine of portability is applied and requires more harsh scene in cleaning.Specifically,
Range of the injection pressure of electrodynamic type cleaning machine before not passing through cavitation jet spray head is 0.5-20Mpa, is penetrated by cavitation
After the cavitation for flowing spray head, the pressure for being injected in body surface is significantly increased, enhances cleaning capacity.
In order to the good cleaning effect of the more detailed cavitation jet spray head for illustrating the utility model use.First
Introduce the principle of lower cavitation jet spray head.Cavitation jet spray head is so that the water flow flowed into from spray boom is existed using cavitation jet principle
The inside of spray head generates a large amount of cavitation bubbles, is finally reached the effect for being sprayed at the increase of cleaned material body surface pressure, improves cleaning
Ability.Cavitation jet principle is that the jet stream come out from spray head induces the cavitation bubble for making generation be full of water vapour inside it, suitably
Nozzle structure and impacted object surface distance are adjusted, so that these cavitation bubbles is had the process grown up, compressed, when jet impulse to object
Space-time bubble rupture in surface generates jet impulse and shock wave impact, in body surface or is formed about higher-pressure region.Due to cavitation bubble
The huge energy concentration generated when rupture acts in many very small areas, to generate in many regional areas high
Stress is concentrated, and the impact failure of the dirt to cleaned body surface is caused.This local pressure of cavitation jet, which amplifies, to be made
With making its cleaning effect be far longer than non-cavitation jet.
When hole in jet stream is buried in oblivion, generating " implosion " is that cavitation jet erosion ability is higher than conventional jet erosion ability
Main cause.When water turbomachinery to pressure increases area, interior steam will condense into liquid and bury in oblivion, and occur in liquid internal empty
Hole forms impact phenomenon to hollow center in the liquid micelle of empty attachment, and cavitation jet spray head can will be penetrated under normal conditions
8.6-124 times of the pressure-broaden of stream, so, in the case where keeping the identical situation of erosion effect, select the common spray of cavitating nozzle substitution
Mouth can make 1-2 order of magnitude of drop of pressure of pump discharge itself, substantially increase cleaning efficiency when work, reduce simultaneously
Cost can use the smaller pump of the lighter volume of weight, so that jetting machine is more portable.
Cavitation jet is different according to the principle for generating cavitation, can be divided into three types: around flow pattern, shearing-type and concussion
Type.Working principle around flow pattern is to generate segregation phenomenon when liquid is around centerbody, is occurred in the downstream in spray outlet section
The tail of whirlpool has been rushed, vacuole breeds at the center of whirlpool and is come into being, and in certain range, vacuole is growed, until
When harrowing object surface, due to the influence of stagnation pressure field, vacuole is shunk rapidly so that crumbling and fall.Processing, the matching requirements of this spray head
It is relatively high.The principle of the cavitation jet of shearing-type is to generate vacuole using the barometric gradient of the submerged jets of jet boundary, this
Nozzle structure is simple, it is easy to accomplish, but be only applicable under the conditions of flooding.
The principle of oscillation type cavitation jet spray head is that one is generated due to contraction when fluid is by resonant cavity outlet
A pressure excitement, this pressure excitement is reflected into inlet, is superimposed with the pressure pulse of inflow, when the sheet of frequency of oscillation and jet stream
Sign frequency just forms resonance when consistent, generates the collar vortex and high-intensitive cavitation jet of large scale in exit.Self-excitation vibration is empty
The spray head for changing jet stream, is not required to extrinsic motivated source, can generate pulse cavitating jet using the structure change of spray head itself, impulse certainly
Swing the advantages of cavitation jet has cavitation jet and pulsing jet concurrently.Cavitation jet spray head does not depend on the energy source forcing of any outside,
Reasonable spray head designs are only relied on, the effect of cavitation jet and pulsing jet can be obtained, the simple, volume with structure
It is small, without additional external driving structure and the advantages that stationary seal.
In order to overcome the technological difficulties that electrodynamic type cleaning machine pressure is small, cleaning capacity is weak, the utility model is by cavitation jet
Spray head is applied on electrodynamic type cleaning machine, under the premise of not increasing the volume and weight of electrodynamic type cleaning machine, keeps electrodynamic type clear
Washing machine has more good cleaning capacity.Specifically, cavitation jet spray head 110 selects self-oscillation type cavitation jet spray head.
In the present embodiment, due to using cavitation jet spray head, the cleaning ability of electrodynamic type cleaning machine 1 can more than ten times very
Increase to tens times, therefore cleaning capacity is no longer the overriding concern factor of electrodynamic type cleaning machine, in order to more meet portability
Requirement, pump can have more selections, for example select lighter pump, such as diaphragm pump.On the other hand, cavitation jet spray head convection current
The pressure and flow of the jet stream entered have certain corresponding relationship, for the jet stream of specific flow and pressure, cavitation jet spray
The size of head needs stringent design to meet the condition to form cavitation.
In the present embodiment, cavitation jet spray head includes liquid outlet pipe and the spout positioned at liquid outlet pipe one end, liquid outlet pipe
It is formed with the cavitation chamber that outside liquid can be induced into cavitation bubble, liquid outlet pipe further includes admission chamber, and cavitation chamber is located at spout
Between admission chamber, after outside liquid flows into cavitation jet spray head, successively projected after admission chamber, cavitation chamber and spout.Into
One step, the liquid outlet pipe of cavitation jet spray head may include the top nozzle being arranged between admission chamber and cavitation chamber, can also be with
Including the lower nozzle being arranged between cavitation chamber and spout, can both have both, one can also be only included.
In the present embodiment, cavitation jet spray head is specially from exciting pulse cavitation spray head, and cavitation chamber is specially self-excitation chamber.?
In one preferred embodiment, further includes top nozzle 1102 and lower nozzle 1104 from exciting pulse cavitation spray head 110, specifically ask
Referring to Fig. 4, from exciting pulse cavitation spray head 110 according to the direction of jet stream from right to left successively including admission chamber 1101, with feed liquor
The top nozzle 1102 that chamber 1101 is connected is connected to the self-excitation chamber 1103 of top nozzle 1102, under being connected with self-excitation chamber 1103
Nozzle 1104.Specifically, the circulating face of admission chamber 1101 (defining circulating face is the ring week cross section that liquid flows through, similarly hereinafter)
Greater than the circulating face of top nozzle 1102, admission chamber 1101 is connected to by a tapered surface with top nozzle 1102, self-excitation chamber 1103 and
The impingement area 1105 at an acute angle with jet direction is provided on the opposite inner wall of top nozzle 1102.In present embodiment, work as jet stream
It is flowed into from admission chamber 1101, by reaching top nozzle 1102 in the tapered surface outflow gradually tapered up, the flow velocity of jet stream is due to stream
Logical face becomes smaller and increases, and is flowed into self-excitation chamber 1103 from top nozzle 1102 and impingement area 1105 generates sharp impacts, impingement area
1105 presence propagates the disturbance of collision area outward, is conducive to the formation of big structure whirlpool, to cause self-oscillation.
Preferably, the angle of impingement area and jet direction is 60 degree.
In another preferred embodiment, the influence that parameters compare cleaning effect is introduced in more detail, from exciting
Pulse cavitation spray head 210, specifically referring to figure 5..From exciting pulse cavitation spray head 210 according to jet stream direction from left to right successively
Including admission chamber 2101, the top nozzle 2102 being connected with admission chamber 2101 is connected to the self-excitation chamber 2103 of top nozzle 2102,
The lower nozzle 2104 being connected with self-excitation chamber 2103 is formed with impact walls in self-excitation chamber 2103.For the convenience of description, definition should
The main structure parameters of spray head 210: 2102 diameter d2 of top nozzle, 2104 diameter d1 of lower nozzle, 2103 diameter Dc of self-excitation chamber, upper spray
Distance Lc and impact walls frustoconical bevel angle α between mouth 2102 and lower nozzle 21041.From exciting pulse cavitation spray head cleaning effect with
There is direct connection in parameters, when carrying out nozzle design, need to optimize proportion to above structure parameter, need to match
It include: nozzle diameter ratio d2/d1, self-excitation chamber diameter and lower nozzle diameter ratio Dc/d2, intracavitary long up and down than the structural parameters of optimization
Diameter ratio Lc/Dc.
Lower mask body introduces parameters with the influence for comparing cleaning effect: the upper and lower nozzle diameter proportion direct shadow of d2/d1
Ring the energy loss in cavitation processes, self-excitation at that time is not intracavitary can generate parallel vortex row for proportion, loses portion of energy, influences
Cavitation effect.Influence of the chamber diameter with lower nozzle diameter ratio Dc/d2 to cavitation effect essentially consists in, and self-excitation chamber diameter is bigger, certainly
The position cavitation zone for swashing chamber central axis two sides is bigger, and the distance of cavitation centre distance axis is remoter, to the shadow of jet-core region
Sound is weaker, while can also extend the period of cavitation, reduces the frequency of pulsing jet；Vice versa.Intracavitary draw ratio Lc/Dc is also right
Cavitation effect has vital influence, when intracavitary draw ratio Lc/Dc is too small, entire self-excitation chamber all throughout cavitation zone,
To generate larger impedance to jet stream, biggish energy loss is generated；When intracavitary draw ratio Lc/Dc is excessive, it can generate serial
Vortex row, while frequency gradually rises, since low-pressure pulses jet energy is concentrated mainly on the lower region of frequency, frequency liter
Height is unfavorable for the raising of cleaning effect.Amid all these factors, consider the factors such as hitting power and energy loss, be suitably set up and down
Nozzle diameter ratio d2/d1, self-excitation chamber diameter and lower nozzle diameter ratio Dc/d2, intracavitary draw ratio Lc/Dc can be largely
Improve the effect of cavitation.Inventor of the invention has passed through experiment and has obtained and can improve while reducing loss being suitble to for hitting power
Range, the understanding that they obtain is: preferably, the range of the ratio between upper and lower nozzle diameter d2/d1 is 1.5-2.6, self-excitation chamber diameter
Range with lower nozzle diameter ratio Dc/d2 is 6-7, and the range of intracavitary draw ratio Lc/Dc is 0.4-0.7.By by parameters
Within the above range, while capable of largely reducing energy loss and jet stream impedance, keep frequency is moderate, to reach for setting
To preferable cavitation effect.Preferably, top nozzle diameter d2 is set as 0.8mm, lower nozzle diameter d1 is set as 1.0mm, self-excitation
It is 4.2mm that chamber diameter Dc, which is set as 6.0mm, top nozzle and lower injector spacing from Lc, further, preferably to reduce loss,
Impact walls frustoconical bevel angle α1It is set as 410 degree.
In another preferred embodiment, from exciting pulse cavitation spray head 310, Fig. 6 is specifically please referred to.Present embodiment
In, in order to reduce loss when intaking in spray head, 3101 cavity wall of admission chamber is arranged on central axis along water inlet direction gradually
The form of contraction, it is preferred that the angle α formed between about 3101 cavity wall of admission chamber2It is 13.5 degree.Major parameter proportion is same
It meets the above range, specifically, top nozzle diameter d2 ' is set as 1.5mm, lower nozzle diameter d1 ' is set as 1.0mm, self-excitation chamber
Diameter Dc ' is set as 9.0mm, top nozzle and lower injector spacing and is set as 4.3mm from Lc '.
In an additional preferred embodiment, cavitation jet spray head is specially organ pipe self-oscillation cavitation spray head, cavitation chamber
Specially organ type resonant cavity, please refers to Fig. 7.Organ pipe self-oscillation cavitation spray head 410, being by a length is L, diameter is
The organ type resonant cavity 4103 of D is used as monofier, and 4103 entrance of resonant cavity is connected with admission chamber 4101, resonant cavity 4103
Lower part and diameter be d lower nozzle 4104 be connected, define D/d as the coefficient in the exit constriction section of resonant cavity.Exit constriction
Section is both autoexcitation mechanism and feedback mechanism.When stablizing fluid circulation, contraction front can make fluid generate initial pressure
Power excitement, and pressure excitement can be fed back to resonant cavity 4103, form feedback pressure oscillation.It is former according to transient flow theory and marine acoustics
Reason, if pressure excitement is matched with organ pipe oscillation cavity intrinsic frequency, the pressure oscillation of feedback can be amplified, thus humorous
Shake intracavitary generation fluid resonant, forms standing wave, and jet shear layer vortex is made to become big structure separation shape vortex, this big structure
Cavitation can be enhanced in interrupted collar vortex, i.e., generates the interrupted collar vortex of big structure in exit and high-intensitive cavitation is penetrated
Stream, to improve its erosion and cleaning ability.
In an additional preferred embodiment, cavitation jet spray head is specially centerbody cavitation jet spray head, and cavitation chamber is specific
For center body.It please refers to Fig. 8, in the present embodiment, is formed with feed liquor in the liquid outlet pipe 5100 of centerbody cavitation jet spray head 510
Chamber 5101 and lower nozzle 5104, the centerbody 5103 being connected to admission chamber 5101, the diameter of lower nozzle 5104 are D1, centerbody
5103 diameters are D2.Water is flowed into from admission chamber 5101, wake zone will be formed at the rear portion of centerbody 5103, in appropriate flox condition
It just can induce cavitation phenomenon down.
In an additional preferred embodiment, cavitation jet spray head is specially ring-like cavitation jet spray head, and cavitation chamber is specially
Annular solid.Please refer to Fig. 9, in the present embodiment, ring-like cavitation jet spray head 610 includes nozzle wall 6106 and 6107 interconnected
And the ring-like body 6103 of nozzle exit is set, admission chamber 6101, shape on nozzle wall 6107 are formed on nozzle wall 6106
At there is lower nozzle 6104.
In an additional preferred embodiment, cavitation jet spray head is specially angle-style cavitation spray head, and cavitation chamber is specially to include
Contraction chamber, speedup chamber and the cavity being connected including diffusion chamber.Please refer to Figure 10, in the present embodiment, angle-style cavitation spray head 710
It from left to right successively include admission chamber 7101 according to the direction of jet stream, the top nozzle 7102 being connected to admission chamber 7101 is connected to
The contraction chamber 7103 of top nozzle 7102, contraction chamber 7103 are successively connect with speedup chamber 7103 ', diffusion chamber 7103 ", the spray of angle-style cavitation
First 710 further include lower nozzle 7104.
For ease of description, with continued reference to Figure 11,710 design parameter of angle-style cavitation spray head: 7102 diameter of top nozzle is defined
D1, the angle of throat α 3 of contraction chamber 7103,7103 length L1 of contraction chamber, 7103 ' diameter D0 of speedup chamber, 7103 ' length L0 of speedup chamber,
Lower 7104 diameter D2 of nozzle, 7103 " length L2 of diffusion chamber and about 7103 " diffusion chamber are formed by angle of flare α 4.
Inventor is found through experiments that: under different speedup chamber diameters, vapour volume score is in nozzle on nozzle-axis
The variation that speedup chamber near exit is first increased rapidly and then is reduced rapidly, the size of vapour volume score can illustrate empty in nozzle
How much nascent change.VELOCITY DISTRIBUTION is opened also in compliance with similar rule, i.e. speed from entrance on different speedup chamber diameter nozzle axis
Beginning is gradually increased until obtaining maximum value, and speedup chamber near exit speed is progressively smaller until jet expansion after obtaining maximum value
Place.When nozzle exit velocity is smaller, it is unfavorable for vacuole and develops in flowing to grow up, is unfavorable for enhancing extent of cavitation, improves cavitation
Effect.Amid all these factors, after inventor is by experiment, the value range for choosing speedup chamber diameter d0 is 0.8~2mm, speedup
The value range of ratio LO/D0 between cavity length L0 and speedup chamber diameter D0 is 3~5.Preferably, to guarantee cavitation effect,
Parameters choose it is as follows: top nozzle diameter d1 is set as 3.0mm, the angle of throat α 1 of contraction chamber be set as 14 °, contraction chamber it is long
L1 is set as 8.4mm to degree, speedup chamber diameter d0 is set as 1.0mm, speedup cavity length L0 is set as 4.0mm, diffusion chamber diameter d2
Be set as 5.6mm, diffusion cavity length L2 is set as 4.0mm, angle of flare α 2 is set as 60 °.
Referring to figure 2., in the present invention, electrodynamic type cleaning machine 1 also has the speed-regulating switch 7 for adjusting 2 revolving speed of motor.Speed regulation
Switch 7 is electrically connected with control unit 6, and control unit 6 controls the rotation speed change of motor 2 according to the speed-regulating instruction of speed-regulating switch 7.?
In the embodiment, control unit 6 adjusts the duty ratio of motor 2 to adjust the revolving speed of motor 2, that is to say, that adjusts electricity by PWM
Road adjusts motor speed.The variation of 2 revolving speed of motor can cause the period of motion of pump 4 to change, to change electrodynamic type cleaning machine 1
Discharge pressure.In this embodiment, there are two speed stages, respectively high gear and low gear for the tool of speed-regulating switch 7.When
So, more than two speed stage also can be set in speed-regulating switch 7 or speed-regulating switch 7 is stepless time adjustment.Specifically, electronic
Formula cleaning machine 1 has different operating modes, high gear or low gear according to the difference for the nozzle type being connected thereto
Corresponding discharge pressure is also different under different working modes.
In the present invention, there are two types of operating modes for the tool of electrodynamic type cleaning machine 1, when shell 10 and spear cavitation jet spray head 21 connect
When connecing, electrodynamic type cleaning machine 1 is in the first operating mode, when shell 10 is connect with short arm cavitation jet spray head 11, electrodynamic type
Cleaning machine 1 is in the second operating mode.Specifically, corresponding to the high gear of electrodynamic type cleaning machine 1 in the first operation mode
Discharge pressure be different from the high gear of electrodynamic type cleaning machine 1 in the second mode of operation corresponding to discharge pressure；
Discharge pressure corresponding to the low gear of electrodynamic type cleaning machine 1 in the first operation mode is different from electrodynamic type cleaning machine and exists
Discharge pressure corresponding to low gear under second operating mode.In telescopic cavitation jet spray head embodiment,
Extension type cavitation jet spray head there is the first length spray head for being formed in a stretched state and formed under compression the
Two length spray heads.In this embodiment, the length of the first length spray head in the axial direction is greater than the second length spray head, and the first length
For spray head it can be appreciated that the spear cavitation jet spray head that above-mentioned first operating mode lower case 10 connects, the second length spray head can
To be interpreted as the short arm cavitation jet spray head that above-mentioned second operating mode lower case 10 connects.It is, therefore, understood that working as shell
10 with the first length spray head when connecting, and electrodynamic type cleaning machine 1 is in the first operating mode, when shell 10 and the second length spray head connect
When connecing, electrodynamic type cleaning machine 1 is in the second operating mode.First length spray head is connected to high speed corresponding when the shell 10
Discharge pressure under gear is different from the second length spray head and is connected under high gear corresponding when the shell 10
Discharge pressure, the first length spray head are connected to the discharge pressure under low gear corresponding when the shell 10 different from second
Length spray head is connected to the discharge pressure under low gear corresponding when the shell 10.
In the present embodiment, electrodynamic type cleaning machine 1 can identify the type of the cavitation jet spray head of connection on the housing 10, root
Automatically switch different working modes according to recognition result.When spear cavitation jet spray head or short arm cavitation jet spray head be connected to it is electronic
When formula cleaning machine 1, the electrodynamic type cleaning machine 1 can identify the spear cavitation jet spray head or cavitation jet short arm spray
Head automatically switches to first or second operating mode according to recognition result.When electrodynamic type cleaning machine 1 recognizes spear cavitation jet
When spray head 21, control unit 6 controls electrodynamic type cleaning machine 1 and switches to the first operating mode, high gear and low gear difference
Corresponding first high pressure shelves and the second high pressure shelves；When electrodynamic type cleaning machine does not recognize the spear cavitation jet spray head 21 or
When electrodynamic type cleaning machine recognizes the short arm cavitation jet spray head 11, electrodynamic type cleaning machine is in the second operating mode, high speed
Gear and low gear respectively correspond the first low pressure shelves and the second low pressure shelves.The discharge pressure of first low pressure shelves is greater than the second low pressure
Shelves, the discharge pressure of the first high pressure shelves is greater than the second high pressure shelves, and the discharge pressure of the first and second low pressure shelves is high lower than first and second
Press the discharge pressure of shelves.In telescopic spray nozzle embodiment, electrodynamic type cleaning machine 1 can identify the of connection on the housing 10
One length spray head or the second length spray head automatically switch first or second operating mode according to recognition result, when electrodynamic type cleans
When machine 1 recognizes the first length spray head, control unit 6 controls jetting machine 1 and switches to the first operating mode, when electrodynamic type is clear
When washing machine does not recognize the first length spray head or when electrodynamic type cleaning machine recognizes the second length of short arm spray head, electrodynamic type
Cleaning machine is in the second operating mode.
Specifically, trigger member is arranged on the spear cavitation jet spray head 21 of electrodynamic type cleaning machine 1, shell 10 is penetrated with cavitation
Identification module is arranged in the part for flowing spray head connection, trigger member is not provided on short arm cavitation jet spray head 11, when spear cavitation jet
When spray head is installed on shell, identification module recognizes trigger signal, sends trigger signal to control unit 6,6 basis of control unit
Trigger signal makes electrodynamic type cleaning machine 1 switch to the first operating mode, and when not recognizing trigger signal, control unit 6 is controlled
Jetting machine is in the second operating mode.In other embodiments, spear cavitation jet spray head 21 and short arm cavitation jet spray
Trigger member is all respectively set on first 11, only different from generated trigger signal when the connection of shell 10,6 basis of control unit
Different trigger signals makes electrodynamic type cleaning machine be in corresponding operating mode, and when not recognizing trigger signal, control is single
Member 6 controls motor stalls, motor error starting when preventing shell from not connecting spray head.Specifically, spear cavitation jet spray head
First trigger member is set on 21, and identification module recognizes the first trigger member, issues the first trigger signal, short arm cavitation jet spray head
Second trigger member is set on 11, and identification module recognizes the second trigger member, issues the second trigger signal, and control unit 6 is according to connecing
The first trigger signal received, identification connection is spear cavitation jet spray head 21 on the housing 10, to switch to the first work
Operation mode, when control unit 6 receives the second trigger signal, identification connection is short arm cavitation jet spray head on the housing 10
11, to switch to the second operating mode.In the present embodiment, trigger member is magnet or induction coil, and identification module is Hall inspection
Survey element.Hall detection component can be used for detecting the magnetic field strength of magnet or induction coil, and be generated accordingly according to magnetic field strength
Voltage value, then using the voltage value as signal sending value to control unit 6, control unit 6 is controlled according to the voltage value
The revolving speed of motor.
In telescopic cavitation jet spray head embodiment, spray boom is telescopic, including the first jet pipe and the second jet pipe, shell
Part that body 10 is connect with spray head is arranged identification module, the first jet pipe with trigger member is equipped on the junction of the second jet pipe, the
Trigger member is not provided on two jet pipes.When the second jet pipe is in the state of the first jet pipe of retraction, identification module can perceive touching
For outbox to generate identification signal, control unit 6 controls the revolving speed model that motor speed is in low-pressure state according to identification signal
It encloses, electrodynamic type cleaning machine is in the second operating mode at this time.When the second jet pipe is in the state for stretching out the first jet pipe, trigger member
With it is too long at a distance from identification module, identification module can not perceive trigger member, and control unit does not receive identification signal, control unit
6 control motors are in the range of speeds of preset high pressure conditions, and electrodynamic type cleaning machine is in the first operating mode at this time.This implementation
Telescopic spray nozzle can be integrally formed with shell or removably be connected to main part in example.
Electrodynamic type cleaning machine can automatically adjust motor speed according to the type difference of the cavitation jet spray head of installation, in difference
Nozzle type under, and different revolving speeds can be adjusted by speed-regulating switch, to adjust discharge pressure.Therefore, by cavitation
The cavitation jet of fluid jet nozzle acts on, and cleaning ability increases, while the discharge pressure of electrodynamic type cleaning machine 1 can in a wide range of
It adjusts, is applicable to clean more obstinate dirt, also can be adjusted to that for cleaning living every-day object, meet daily need
It asks.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.
Claims (10)
1. a kind of electrodynamic type cleaning machine, comprising:
Shell, the shell include for the handle of gripping, with the main part of the angled setting of the handle and for will be outer
Portion's liquid introduces the inlet of the electrodynamic type cleaning machine；
Functional component, the functional component include the motor of the pump and the driving pump work for conveying liquid outward；
Liquid attachment attachment out, liquid attachment attachment and the handle out are located at the opposite two sides of the main part；
It is characterized in that, the liquid attachment attachment out includes the liquid outlet being connected with the inlet, the liquid attachment out
Attachment is configured as that cavitation jet spray head is allowed selectively to connect, and the cavitation jet spray head includes liquid outlet pipe and is located at
The spout of described liquid outlet pipe one end, the liquid outlet pipe are formed with the cavitation chamber that can be induced outside liquid into cavitation bubble,
The outside liquid can flow to the cavitation chamber from the inlet, and sprayed outward by the spout under pump pressurization
It penetrates.
2. electrodynamic type cleaning machine as described in claim 1, which is characterized in that the liquid outlet pipe includes connecting with the liquid outlet
Logical admission chamber, the cavitation chamber is between the spout and the admission chamber.
3. electrodynamic type cleaning machine as claimed in claim 2, which is characterized in that the cavitation chamber is self-excitation chamber, the outlet tube
Road includes set on the top nozzle between the admission chamber and the cavitation chamber, and the circulating face of top nozzle is less than the circulation of admission chamber
Face.
4. electrodynamic type cleaning machine as claimed in claim 3, which is characterized in that interior opposite with the top nozzle of the self-excitation chamber
The impingement area at an acute angle through direction with liquid flow is formed on wall.
5. electrodynamic type cleaning machine as claimed in claim 3, which is characterized in that the liquid outlet pipe further includes being located at the self-excitation
Chamber front end and be connected to the self-excitation chamber setting lower nozzle, the notch setting the lower nozzle free end, it is described
The range of top nozzle and the lower nozzle diameter ratio is 1.5-2.6, and the diameter of the self-excitation chamber and the lower nozzle is than range
The intracavitary draw ratio range of 6-7, the self-excitation chamber and the lower nozzle is 0.4-0.7.
6. electrodynamic type cleaning machine as claimed in claim 3, which is characterized in that the admission chamber includes setting close to the liquid outlet
The connecting cavity set and the adapter cavity close to top nozzle setting, the adapter cavity flow through institute by the liquid outlet in outside liquid
State is in gradually taper up on the direction of liquid outlet pipe.
7. electrodynamic type cleaning machine as described in claim 1, which is characterized in that the cavitation jet spray head is the spray of angle-style cavitation
Head, the angle-style cavitation spray head include the admission chamber successively arranged, contraction chamber, speedup chamber and diffusion chamber, the length of the speedup chamber
The ratio range of the diameter of degree and the speedup chamber is 3-5.
8. electrodynamic type cleaning machine as described in claim 1, which is characterized in that the electrodynamic type cleaning machine is hand-held cleaning
Machine, the functional component are set in the shell, and the injection pressure limit of the electrodynamic type cleaning machine is 2-15Mpa.
9. a kind of cavitation jet spray head, the cavitation jet spray head can be operationally coupled with electrodynamic type cleaning machine, feature
Be: the cavitation jet spray head includes liquid outlet pipe and the spout positioned at described liquid outlet pipe one end, the liquid outlet pipe shape
At there is the cavitation chamber that can be induced outside liquid into cavitation bubble, the liquid outlet pipe further includes admission chamber, the cavitation chamber position
Between the spout and the admission chamber, outside liquid flows through the liquid outlet pipe from the admission chamber, from the spout to
Outer injection cavitation jet.
10. cavitation jet spray head as claimed in claim 9, it is characterised in that: the cavitation jet spray head is from exciting pulse
Cavitation spray head, the liquid outlet pipe include set on the top nozzle between the admission chamber and the cavitation chamber, the circulation of top nozzle
Face be less than admission chamber circulating face, the cavitation chamber between the top nozzle and the spout, the cavitation chamber with it is described
The impingement area at an acute angle through direction with liquid flow is formed on the opposite inner wall of top nozzle.
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|---|---|---|---|
| CN201710611673 | 2017-07-25 | ||
| CN2017106116734 | 2017-07-25 |
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| CN209174184U true CN209174184U (en) | 2019-07-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021093541A1 (en) * | 2019-11-15 | 2021-05-20 | 苏州宝时得电动工具有限公司 | Handheld cleaning machine |
| CN114950754A (en) * | 2021-02-24 | 2022-08-30 | Toto株式会社 | Water discharge device |
-
2018
- 2018-06-28 CN CN201821015035.2U patent/CN209174184U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021093541A1 (en) * | 2019-11-15 | 2021-05-20 | 苏州宝时得电动工具有限公司 | Handheld cleaning machine |
| CN114950754A (en) * | 2021-02-24 | 2022-08-30 | Toto株式会社 | Water discharge device |
| CN114950754B (en) * | 2021-02-24 | 2024-04-26 | Toto株式会社 | Water spouting device |
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