CN103110989B - A kind of reciprocal aspirator of Compact structural and breast pump - Google Patents
A kind of reciprocal aspirator of Compact structural and breast pump Download PDFInfo
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- CN103110989B CN103110989B CN201310057741.9A CN201310057741A CN103110989B CN 103110989 B CN103110989 B CN 103110989B CN 201310057741 A CN201310057741 A CN 201310057741A CN 103110989 B CN103110989 B CN 103110989B
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/06—Milking pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/42—Reducing noise
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Pediatric Medicine (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses the reciprocal aspirator of a kind of Compact structural and breast pump, be applied to the field needing small displacement aspiration vacuum, it is by being used for providing the power motor unit that rotates original moment and being used for by power conversion being internal volume distortion thus the cylinder driving unit of output suction, be set in parallel in the same side of the gear transmission unit for slowing down to original moment and commutate and be attached thereto, and by by gear transmission unit and synchronous belt drive mechanism Integral design in same gear housing, while realizing large suction and high efficiency function; Half volume can be reduced than same level prior art, achieve portable object; Sound construction is reliable, and applies multiple damping and noise-reducing design reaches muting function.
Description
Technical field
The present invention relates to the reciprocal aspirator of a kind of Compact structural and breast pump, particularly relate to and move back and forth the electrical suction unit of the compact conformation producing suction by cylinder piston and apply the breast pump of this aspirator.
Background technology
Reciprocating motor aspirator (air-cylinder type electrical suction unit), is just widely used needing the field such as medical treatment, health care, beauty treatment producing small displacement vacuum; Such as air-cylinder type breast pump, its suction produced by reciprocating motor aspirator, the breast milk of balling-up in mammary gland, so that feeding baby, and because the cylinder piston of reciprocating motor aspirator moves back and forth the characteristic producing intermittent suction effect, may be used for periodically inhaling when simulation baby sucks breast milk putting effect, improve collection efficiency and comfort.As far back as 1854, USPO authorized the hand-operated breast pump patent (patent No. 11135) of .O.H.Needham, and the basic element forming breast pump as seen comprises: can vacuum bellows, infundibulate breast cup and trachea.It is 1644257 that nineteen twenty-one EdwardLasker invention can simulate its United States Patent (USP) number of breast pump that baby sucks, be acknowledged as the practicality improvement and application of electric breast pump, have in its technical scheme and the feeding bottle breast cup that is connected of one and the check valve with milk water segregation, adopt air-cylinder type design.Within 1956, EubarEgnell designs famous EgnellSMB electric breast pump, although this breast pump bulky, continuing into the present, it is a small amount of also in use to still have.
Breast pump type is mainly divided into rubber bowl type, vacuum pump type and air-cylinder type by suction principle.Rubber bowl type is mainly used in type hand, and armrest is pinched or pulling of lever makes glue bowl be out of shape generation vacuum, and suction is little, and the effect that sucks is unreliable.Vacuum pump-type is used for electric breast pump, and volume is little is major advantage, but pumping volume is little, and will reach suction by accumulation vacuum, therefore efficiency is low, and suction comfort level is also bad.Air-cylinder type breast pump pumping volume is large, suction is large, efficiency is high, comfort level is good, but realizes complex structure.Air-cylinder type electrical suction unit in it is bulky, not Portable belt often, and mothers are often in the occasion of going out or work when operation of carrying out sucking, so breast pump really will meet the instructions for use of suckling mother, accomplish that suction is large, efficiency is high, little side is ideal for volume.So far, basic element is shaped in breast pump technical development, and more challenge is that how to realize minimum volume gives larger suction and efficiency simultaneously, and further challenge to accomplish that low noise is noiseless, and possess reliable service life.
Summary of the invention
The main technical problem to be solved in the present invention is, provides the reciprocal aspirator of a kind of Compact structural and breast pump, compact conformation, is providing large suction and is reducing small product size under keeping high efficiency prerequisite.
For solving the problems of the technologies described above, the invention provides the reciprocal aspirator of a kind of Compact structural, it comprise power supply, housing and be arranged in this housing for provide rotate original moment power motor unit, carry out slowing down with gear transmission unit commutate for being connected the rotation of described power motor unit to export, being used for being connected and the Power output of described gear transmission unit is converted to own content amasss distortion thus export the cylinder driving unit of suction and be used for the control circuit board of function control.Described power motor unit and described cylinder driving unit are side by side in axis being parallel layout, and be attached thereto in the same side of gear transmission unit, described gear transmission unit has commutation function, and described gear transmission unit has been wholely set reducing gear and synchronous belt drive mechanism.This design connects compact, saving space, and can reduce half volume than same level function prior art, sound construction is reliable, can transmit high-power, and be beneficial to damping and noise reduction.
During enforcement, the present invention program, described power motor unit directly drives described cylinder driving unit by gear-box, slow down without the need to belt mechanism, transmission changement is had in gear-box, thus make power motor unit and described cylinder driving unit side by side in axis being parallel layout, thus greatly reduce the width of main frame.
Described control circuit board controls the periodically forward and reverse output of power motor unit, thus realize periodicity air-breathing and the aerofluxus of cylinder driving unit, wherein namely control circuit board determines dynamics and the speed of cylinder driving unit air-breathing to the stroke of power motor unit forward/reverse and speed controlling.
During enforcement, described gear transmission unit comprises gear-box for realizing described deceleration and commutation, for the synchronous belt drive mechanism as described gear transmission unit clutch end, and connect as one for being connected the Timing Belt support of locating described synchronous belt drive mechanism with described gear-box; Described synchronous belt drive mechanism comprises the active synchronization belt wheel of synchronous cog belt and the cooperation of this synchronous cog belt and driven synchronous pulley, and described active synchronization belt wheel accesses the clutch end of described gear-box.This structure effectively achieves deceleration to power motor unit outputting power and commutation, and realizing high-power transmission simultaneously, ensure that compact conformation, being applied as in drive path of synchronous belt drive mechanism provides buffering transition, ensure that effective transmission improves the reliability of drive mechanism simultaneously, and achieving the buffering to vibrations, noise and positive drive.
During enforcement, described gear-box comprises the helical gears, the first duplicate gear, the second duplicate gear and the conical gear that engage successively, wherein helical gears, the first duplicate gear, the second duplicate gear axis being parallel are arranged and in deceleration fit structure, and described conical gear and described second duplicate gear axis be vertical to be arranged and coordinates and realize transmission by boring tooth and commutate.Described gear-box also comprises the power output shaft being used as described clutch end; Described conical gear is fixed on one end of this power output shaft.
The Power output that described active synchronization belt wheel accesses described gear-box refers to that the active synchronization belt wheel of described synchronous belt drive mechanism is also fixed on this power output shaft.Helical gears are applied, and to make to have between gear that overlap coefficient is large, stable drive, the strength of gear teeth are high, can bear heavy duty advantage, because input (helical gears place) needs frequently to commutate, therefore significantly can reduce vibrations and noise.The application of conical gear is also connected with synchronous pulley, ensure that compact conformation in realization commutation simultaneously.
During enforcement, described first duplicate gear and the second duplicate gear respectively by the first gear shaft and the second gear shaft spacing in described gear-box; Described first gear shaft is provided with soft packing ring near described helical gears one end, and described first gear shaft is provided with elastic washer, steel washer and soft packing ring successively away from described helical gears one end ecto-entad; Wherein cushion encloses buffering and fills up the left and right in gap, and the adjacent elastic washer of steel washer forms supporting surface, and soft packing ring and Gear Contact play and wear-resistantly undermine the effect reducing to rub.
Described second gear shaft is provided with the end face sliding bearing be close to gear face away from described conical gear one end, described end face sliding bearing concentric locking collar is on the second gear shaft and be engaged on the internal box sidewall of described gear-box, is provided with should the radial reinforcement plate structure of end face sliding bearing installation position outside described gear-box.End face sliding bearing reduces friction, improves reliability, strengthens gusset and strengthens structural strength and reduce vibrations.
During enforcement, described gear-box includes gear box casing.Described gear box casing and described Timing Belt support are structure as a whole, to save space, this integrative-structure is formed by the first half housings and the second half housing splits, and described the first half housings and the second half housings are the perpendicular segmenting structure of described integrative-structure along described power output shaft axis place.The split structure of this gear box casing, is convenient to the assembling of gear and each driving member, and the stable connection in the split face of ensure that.
During enforcement, described motor body is a plane by output end, and plane has round boss; Described gear-box is provided with the motor connecting end surface with the described plane adaptation of motor, and motor connecting end surface is provided with the circular hole with described round boss adaptation.The round boss of the output end of described motor inserts described center of circular hole location, and the described plane of motor is adjacent to the described motor connecting end surface axial location of gear-box.This arrangement enhances the steadiness of connection, reduce rigging error, avoid the problems such as the transmission failure because rigging error causes, gear wear, collision and vibrating noise; And motor is directly fixed on gear-box, avoids directly contacting with the parts such as housing, effectively reduce the bang path of motor vibrations.
During enforcement, described cylinder driving unit comprise a cylinder, one embedded and the piston rod in T shape along this cross section, embedding direction by described cylinder opening end, and one is set in the piston ring coordinated on this piston rod and with described cylinder inside wall; Also be provided with at the blind end of described cylinder and penetrate described housing sidewall and for inhaling/aerofluxus exports the pump orifice of described suction; The outer end of described piston rod is fixedly connected on described synchronous cog belt, and the range of described piston rod under described synchronous cog belt drives equals the range of described piston rod in described cylinder.It is simple and reliable for structure, is convenient to adopt heavy caliber, Long travel cylinder.
During enforcement, described piston rod is connected to the below of the straightway of described synchronous cog belt, also be provided with U-shaped gathering sill at described underpart of the piston rod, be also provided with upper surface in described active synchronization belt wheel bottom and coordinate with described U-shaped gathering sill for leading and supporting the pulley of this piston rod.This is simple and reliable for structure, and being equipped with to be formed piston rod of U-shaped gathering sill and pulley supports and lead, and improves product reliability, reduces beat vibrations and noise.
Also be provided with the axial depression parallel with described piston ring contoured surface at described piston rod large end end face, ensure that piston rod construction thickness is even, lower molding difficulty and production cost.
During enforcement, the gap location of described cylinder body between open end side and described gear transmission unit is also provided with the flexible gasket for playing damping effect.Avoid rigid collision, and fill up gap reinforcement structural strength.
Described cylinder closed end midline position is also provided with the screw location-plate for being located relative to described gear transmission unit by cylinder, in the middle part of screw location-plate, be provided with through hole.This setting position of screw location-plate effectively carries out axial location to cylinder, avoids the cylinder in piston rod push-and-pull process to follow movement, and location is reliable, reduces vibrations and noise.
The sidewall of described cylinder is also provided with the bypass interface with its axes normal near its blind end, and described cylinder driving unit also comprises the pressure override valve be connected with described bypass interface by trachea.Pressure override valve arranges and makes product have the function of overpressure protection, improves Product Safety; Bypass interface is laterally disposed, reduces the overall volume of product.
During enforcement, described pressure override valve comprises valve body, valve gap and valve block, and wherein, described valve body has an exhaust gas inside road, and described exhaust duct has air inlet and air vent, and described air inlet is connected by trachea with the bypass interface of described cylinder; Described valve block is elastomeric material material, its inner face touch the sealing surface of described valve body, relatively described valve body location, its top, the sphere of one projection is set in the middle part of it, the steam vent that this sphere aims at described valve body forms hermetically-sealed construction, the bottom of described valve block is fish hook bending, and the position that it bends up adopts structure thicker; Described valve body is also provided with the cavity of isolating with described sealing surface, the tail end that described valve block bends up position is embedded in described cavity.This structure is reliable, good seal, can avoid the problem that existing pressure override valve easily lost efficacy, and improves product service life.
During enforcement, described driven synchronous pulley comprises a tubular synchronizing belt gear; Synchronizing belt gear comprises outer cylindrical gear profile and endoporus, and wherein endoporus radially has at least one inner concave shape oil groove; Described driven synchronous pulley also comprises the axis through described endoporus; Described axis has draw-in groove in the lateral surface position, two ends of the described synchronizing belt gear of correspondence, and described draw-in groove has also been installed with the circlip of position-limiting action.This driven synchronous belt wheel structure, overall volume is less, at fixing axis, can rotate for a long time, effectively without the need to tubular synchronizing belt gear when skidding.
During enforcement, the body that takes the shape of the letter U overlooked by described Timing Belt support, its bottom is a passage body with through hole structure, the through hole of described passage body and the open communication of described U-shaped body, described driven synchronous pulley is across at described U-shaped body opening part, described active synchronization belt wheel is arranged in described passage body, the U-shaped body opening part bilateral symmetry arranging described driven synchronous pulley is provided with L shape mounting groove, the elongated slot of described L shape mounting groove is parallel with described Synchronous Belt Drives direction, and the short groove of described L shape mounting groove extends to the end face of described Timing Belt support; Described piston rod penetrates the through hole of described passage body.This is simple and reliable for structure, volume is little, has good structural strength, and L shape mounting groove facilitates installation and the adjustment of driven synchronous pulley.
During enforcement, described control circuit board is arranged on above described cylinder driving unit, at described piston rod, piston ring and cylinder inner wall upper end surface are provided with magnetic piece, described control circuit board is provided with the Hall element for responding to this magnetic piece position, to detect the position of piston rod, realize controlling calibration.
The position of described square duct corresponding described magnetic piece movement locus on gear housing is also provided with empty avoiding breach, increases piston rod stroke to reduce small product size.
Described control circuit board also includes and rotates for controlling described electric motor units the rotation direction, velocity of rotation, rotational travel and the circuit of rotating transformation period that export.Realize the control of product.
During enforcement, described cylinder driving unit is provided with the returning buffering spring for reducing backhaul vibration.Avoid in piston rod backhaul, the pull of vacuum in cylinder is ordered about piston rod returning quickly and is caused noise, vibrations and affect Consumer's Experience, and can store the energy of Compress Spring in backhaul, provides the partial power of pumping process, to reduce power of motor requirement.
Concrete, described buffer spring is wind spring, and described power output shaft stretches out one end of described gear housing with flat groove breach, and described gear-box (Timing Belt support) outside is also provided with a hanging column on the side of described power output shaft; One end of described buffer spring is installed on described flat groove breach, and the other end is installed on described hanging column; The outer end of described hanging column is provided with the step departed from for blocking described buffer spring.
During enforcement, described power motor unit comprises motor, soft packing ring and radiator shutter, described motor comprises the motor output shaft and the extension formed that extends back that are positioned at and the axis of its main body extends to form forward, and described helical gears and described soft packing ring are installed on described motor output shaft; Wherein said soft packing ring is between described helical gears and the main body of described motor, and the end face of described soft packing ring and helical gears and the main body end face of described motor are close to.This structure makes motor output shaft fix at axial location, successfully manages the axial force produced in cylindrical helical gear drive process, and the main body of helical gears and motor effectively reduces friction by soft packing ring, ensures motor working efficiency.
During enforcement, in described gear-box, the outer end place of corresponding described motor output shaft is also provided with supplemental support bearing, in described gear-box, be also provided with mesopore penetrate gear-box and for attachment screw described motor body is locked at screw hole post on described gear-box, screw hole post ensure that the laser intensity of gear-box.
Described radiator shutter is fixed on described extension, and described radiator shutter comprises the blade unit of at least two radially irradiation structures, is set in distance between every two described blade units; Described control circuit board, comprise motor rotations sensor circuit, described circuit comprises the infrared inductor at the blade unit interval for responding to described radiator shutter, and this infrared inductor comprises a U-lag, and the rotary motion trace line of described radiator shutter passes the centre of described U-lag.This structure realizes the revolution inspection of motor by radiator shutter, and radiator shutter achieves again the cooling to motor simultaneously.
During enforcement, also include an inner support in described housing, described power motor unit, gear transmission unit and cylinder driving unit are all connected in described inner support; The connecting portion of described inner support and described housing has been provided with the flexible gaskets of buffer action.Inner support be arranged so that the fit structure of power motor unit, gear transmission unit and cylinder driving unit is strengthened, make product solid, durable, and reduce the vibrations in work process, flexible gaskets cushions and prevents to shake to the transmission of housing further.
During enforcement, the position of corresponding described power motor unit, gear transmission unit and cylinder driving unit on the principal plane of described inner support, respectively depression is provided with indent motor slot, inner concave gear case groove and indent cylinder groove, arrange in empty avoiding between described power motor unit and described indent motor slot, described gear transmission unit and described cylinder driving unit are embedded in described inner concave gear case groove and described indent cylinder groove respectively.Reliably and save space, clearance structure avoids the vibrations of electric motor units directly to inner support transmission, is beneficial to motor radiating simultaneously in the connection that this structure ensures each unit.
During enforcement, described inner concave gear case groove also includes the flexible buffer cover with its trough body structure adaptation, and the isolation of this flexible buffer cover is arranged between described gear transmission unit and described inner concave gear case groove.This structure makes the vibrations of electric motor units and gear transmission unit be buffered cover absorption, not directly to inner support transmission, is beneficial to and reduces noise and vibrations.
During enforcement, uniformly in described indent motor slot be provided with passage, described housing is provided with louvre with corresponding position, described passage position, improve motor radiating performance; The both sides of described indent cylinder groove are provided with long narrow little in addition, and this little is also vertically provided with four columns, and described control circuit board is arranged on these four columns, and this structure is saved space, is convenient to assembling.
During enforcement, described housing is made up of upper shell and lower house split, and described inner support is connected with described lower house, and described upper shell end face is provided with operation interface, the button being provided with display screen and arranging around display screen in described operation interface; Described housing outline is the rectangular shape of edge chamfer, and a vertical side of housing has the chamfer radius larger compared with other edge; Described hull outside is also provided with convex anti-slip veins.This structure is convenient for assembly and use, and maintains and mate with interiors of products structure maximises, reduces small product size, is easy to carry.
Described operation interface is rounded, and described display screen is two and is disposed side by side on this regional center and is respectively used to show the LED display of suction and velocity amplitude; Described button ovalize is provided with seven altogether, comprise: " unlatching/temporary " that be arranged on described display screen top stops key, be separately positioned on memory button and the massage key on described display screen both sides, be arranged on below corresponding LED display, increase/subtract key in two speed be arranged above and below, and increase/subtract key in two suction be arranged above and below.This structure make use friendly interface, operation be more prone to, convenient, at utmost meet user's operation requirements easily.
The present invention also provides a kind of breast pump, and it comprises the reciprocal aspirator of Compact structural as elucidated before.
During enforcement, this breast pump also comprises the trachea and breast cup that connect pump orifice.
The invention has the beneficial effects as follows: the reciprocal aspirator of a kind of Compact structural and breast pump, by providing being used for the power motor unit rotating original moment, with for by power conversion being internal volume distortion thus exporting the cylinder driving unit of suction, be arranged on the same side of the gear transmission unit for slowing down to original moment and commutate and be attached thereto, and power motor unit and described cylinder driving unit are side by side in axis being parallel layout, realize comparatively compact structure, small product size is reduced under the prerequisite of not reducing suction and efficiency, improve damping, noise reduction.
Further, described gear transmission unit is integrally made up of (one formation refers to that gear reduction and synchronous belt mechanism are arranged in same casing) gear-box and synchronous belt drive mechanism, and drive cylinder driving unit by synchronous belt drive mechanism, realizing high-power transmission simultaneously, ensure that compact conformation, being applied as in drive path of synchronous belt drive mechanism provides buffering transition, ensure that effective transmission improves the reliability of drive mechanism simultaneously, and achieving the buffering to vibrations, noise and positive drive.
Further, motor to described gear-box outputting power, stable drive, can bear larger driven loads by helical gears, reduces because input frequently commutates the vibrations and noise problem caused.
Further, the setting of inner support, strengthens structural strength, improves the steadiness of each unit matching, because of deformation or the loosening vibrations produced during the work of minimizing equipment.
Further, by the connecting portion arranging flexible buffer cover, inner support and housing between inner concave gear case groove and gear transmission unit, flexible gaskets is set, gear housing and cylinder end face junction arrange flexible gasket, form multiple isolation buffer, reduce the vibrations of each whole unit on motor, gear transmission unit and inner support, reduce noise jamming, improve product service life.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of a kind of embodiment of the reciprocal aspirator of Compact structural of the present invention;
Fig. 2 is the internal structure schematic diagram after assembling embodiment illustrated in fig. 1;
Fig. 3 is the external structure schematic diagram after assembling embodiment illustrated in fig. 1;
Fig. 4 is another angle perspective view of relative Fig. 3;
Fig. 5 is the polycrystalline substance schematic perspective view of relative Fig. 3;
Fig. 6 is guidance panel schematic diagram embodiment illustrated in fig. 1;
Fig. 7 is inner support part-structure schematic diagram embodiment illustrated in fig. 1;
Fig. 8 is removing housing embodiment illustrated in fig. 1, circuit board, the structural representation (broken section) after other parts assembling;
Fig. 9 is the perspective view of another angle of relative Fig. 8;
Figure 10 is the structural representation (gear transmission unit broken section) of drive chain part embodiment illustrated in fig. 1;
Figure 11 is the explosive view of gear transmission unit embodiment illustrated in fig. 1 and power motor cell mesh;
Figure 12 is the broken section structural representation (comprising the local of the gear transmission unit coordinated with it) of cylinder driving unit embodiment illustrated in fig. 1;
Figure 13 is the structural representation of drive chain embodiment illustrated in fig. 1;
Figure 14 is the cross-sectional view of pressure override valve part embodiment illustrated in fig. 1;
Figure 15 is gear-box section transmission sketch embodiment illustrated in fig. 1.
Detailed description of the invention
By reference to the accompanying drawings the present invention is described in further detail below by detailed description of the invention.
Please refer to the embodiment of the reciprocal aspirator of a kind of Compact structural shown in Fig. 1-15, it comprises power supply (for energy supply)
,housing 300, and be arranged on power motor unit 100, cylinder driving unit 200, gear transmission unit 500 and the control circuit board 600 in this housing 300.Wherein, namely power motor unit 100 rotates output torque for providing the original moment of rotation, the rotation of power motor unit 100 is exported also terminad output of carrying out slowing down and commutating for connecting by gear transmission unit 500, cylinder driving unit 200 is the long-pending distortion of own content for connecting the power conversion exported by gear transmission unit 500 thus exports suction, and control circuit board 600 controls for function.Feature of the present invention is, described power motor unit 100 and cylinder driving unit 200 are arranged on the same side of gear transmission unit 500 and are attached thereto, in axis being parallel layout, (axis mentioned here refers to line shaft or driving shaft side by side for power motor unit 100 and cylinder driving unit 200, as the piston axle of cylinder driving unit 200, the motor shaft of power motor unit 100), realize aforesaid transmission, the tight setting of such electric motor units 100 and cylinder driving unit 200, ensure that space has been saved in transmission simultaneously, make Total Product compact conformation.Support that the key point of above feature is, gear transmission unit 500 has commutation function, the rotation around axis of motor-driven unit is made to convert gear transmission unit to around the axial rotation of output, and make the axes normal of gear transmission unit output shaft and motor-driven unit, also with the axes normal of cylinder driving unit 200, thus the synchronous pulley on driven gear gear unit output shaft, thus drive Timing Belt along the rectilinear motion of piston rod length direction, thus drive piston rod rectilinear motion.Also have a key features, power motor unit 100 and cylinder driving unit 200 are side by side in axis being parallel layout; Axis mentioned here refers to line shaft or driving shaft, as the piston axle of cylinder driving unit 200, the motor shaft of power motor unit 100; Because they operationally, vibrations and noise mainly with this axis for core is to external diffusion, therefore power motor unit 100 and cylinder driving unit 200 are side by side and axis being parallel layout, can make side by side and axis being parallel layout, the superposition mutually of the regular ground of micro-counteracting part, is such as mainly vibrations that are axial or radial direction after superposition, be convenient to carry out shock absorbing process at correspondence direction, if do not have this side by side and axis being parallel layout, then shake direction in disorder, shock absorbing difficulty.
The power transmission link that the reciprocal aspirator of this Compact structural is complete is: power motor unit 100 driving gearbox gear unit 500, driving force is synchronously passed to cylinder driving unit 200 by this gearbox drive unit 500, and produces the suction needed for this device by this cylinder driving unit 200.
During enforcement, described power supply can be external power supply (as transformator connects power supply input), also can be built-in power (as internal battery), embodiment as shown in Figure 1, it adopts external power supply structure, is positioned at housing 300 part is also provided with filtering magnet ring 451 at input lead.Filtering magnet ring 451 is used for filter high-frequency noise, and reduce electromagnetic interference, built-in magnet ring more easily can change model to meet the demands.
In work process, control circuit board controls the periodically forward and reverse output of power motor unit 100, thus realize periodicity air-breathing and the aerofluxus of cylinder driving unit 200, wherein namely the stroke of control circuit board 600 pairs of power motor unit 100 forward/reverse or time controling determine dynamics and the speed of cylinder driving unit 200 air-breathing, this control mode, simplify mechanical transmission structure, be beneficial to reduction manufacturing cost.
During enforcement, can be as shown in Figure 10,11, described gear transmission unit 500 can comprise gear-box 510, synchronous belt drive mechanism and with gear-box 510(housing) connect as one Timing Belt support 560.Wherein, gear-box 510 is for realizing described deceleration and commutation, synchronous belt drive mechanism exports as rectilinear motion is to drive the clutch end that hereinafter described piston rod 230(synchronous belt drive mechanism is gear transmission unit 500 entirety for converting to rotate), Timing Belt support 560 is for connecting the described synchronous belt drive mechanism in location.Concrete, as shown in Figure 10, synchronous belt drive mechanism can comprise synchronous cog belt 580(as shown in Figure 9) and this synchronous cog belt 580 coordinate active synchronization belt wheel 550 and driven synchronous pulley 570, active synchronization belt wheel 550 accesses the clutch end (as shown in Figure 10) of gear-box 510.
During enforcement, can be as shown in Figure 10,15, described gear-box 510 can comprise helical gears 521, first duplicate gear 523, second duplicate gear 532 and conical gear 533 that engage successively, wherein helical gears 521, first duplicate gear 523, second duplicate gear 532 axis being parallel is arranged and in deceleration fit structure, and conical gear 533 arranges with the second duplicate gear 532 axes normal and coordinates and realize transmission by boring tooth and commutate.During enforcement, gear-box 510 also can comprise the power output shaft 540 being used as described clutch end; Conical gear 533 is fixed on one end of this power output shaft 540; Active synchronization belt wheel 550 is also fixed on this power output shaft 540 and namely realizes the Power output that aforementioned active synchronization belt wheel 550 accesses gear-box 510.
Concrete, as shown in Figure 10,11,13,15, described first duplicate gear 523 and the second duplicate gear 532 respectively by the first gear shaft 522 and the second gear shaft 531 spacing in described gear-box 510; First duplicate gear 523 is by the large helical gears 5231 coordinated with helical gears 521 and the little straight spur gear 5232 be integrally connected with large helical gears 5231; Second duplicate gear 532 comprises the large straight helical gears 5321 coordinated with little straight spur gear 5232, with the conical gear 5322 be fixed on large straight helical gears 5321, this conical gear 5322 is bitten to close with described conical gear 533 and is formed Bevel Gear Transmission part 530.Large pinion relation is understood to aforesaid deceleration fit structure from here.
In work process, with reference to shown in Fig. 1,12, by cone tooth mating part, the rotary action power being parallel to motor output shaft is converted to the rotary action power with motor output shaft 110 vertical direction by this, rotary action power being converted to by synchronous cog belt 580 can see hereinafter with its structure of cylinder driving unit 200(again) the linear function power of axis synchronous cog belt 580 in the same way, and drive piston rod 230 rectilinear motion in cylinder driving unit 200, final driving cylinder 210 internal volume change, produces the pull of vacuum needed for breast pump.
During enforcement, can be as shown in Figure 10,11,13, described first gear shaft 522 is provided with soft packing ring 5233 near described helical gears 521 one end, first gear shaft 522 is provided with elastic washer, steel washer and soft packing ring successively away from described helical gears 521 one end ecto-entad, ensure effectively to bite conjunction to realize gap filling, contact surface lubrication and the skew of reduction gearing position, also can balance the axial force that helical gears 521 coordinate transmission to produce with large helical gears 523; Second gear shaft 531 is provided with the end face sliding bearing 5331 be close to gear face away from conical gear 533 one end, end face sliding bearing 5331 concentric locking collar is on the second gear shaft 531 and be engaged on the internal box sidewall of described gear-box 510, end face sliding bearing 5331 plays the effect supported and reduce friction, to should also be provided with radial reinforcement plate structure 5123 in end face sliding bearing 5331 installation position outside gear-box 510, to strengthen structure, reduce local deformation and to ensure that conjunction bitten by gear.
During enforcement, can be as shown in figure 11, gear-box 510 includes gear box casing, and gear box casing and Timing Belt support 560 are structure as a whole, and this integrative-structure is formed by the first half housings 511 and the second half housing 512 splits.Concrete, described the first half housings 511 and the second half housings 512 in described integrative-structure along the perpendicular segmenting structure at described power output shaft 540 axis place, convenient for assembly.Concrete, Timing Belt support 560 and gear-box 510 can be integrated formed structures, to strengthen structural strength, reduced volume, and form effective support to synchronous belt drive mechanism.
During enforcement, can be as shown in Figure 11,13, described motor 120 body be a plane by output end, and plane has round boss; Described gear-box 510 is provided with the motor connecting end surface 5111 with the described plane adaptation of motor 120, and motor connecting end surface 5111 is provided with the circular hole with described round boss adaptation.The round boss of the output end of motor 120 inserts described center of circular hole location, and the described plane of motor 120 is adjacent to motor connecting end surface 5111 axial location of gear-box 510.This locate mode is accurate, firm, convenient for assembly, avoids the problem of the more difficult location of simple screw.
During enforcement, as shown in figure 11, can consider to be provided with flexible buffer pad between described plane and motor connecting end surface 5111, round boss then penetrates flexible buffer pad in reference, and flexible buffer pad can play the effect filling up fit clearance and buffering noise reduction.
During enforcement, can be as shown in figure 12, cylinder driving unit 200 comprises 210, one, a cylinder and is embedded and the piston rod 230 in T shape along this cross section, embedding direction by described cylinder 210 opening, and one is set in the piston ring 220 coordinated on this piston rod 230 and with described cylinder 210 medial wall; Also be provided with at the blind end of described cylinder 210 and penetrate described housing 300 sidewall and for inhaling/aerofluxus exports the pump orifice 240 of described suction; The outer end of described piston rod 230 is fixedly connected on described synchronous cog belt 580, and the range of described piston rod 230 under described synchronous cog belt 580 drives equals the range of described piston rod 230 in described cylinder 210.
During enforcement, can be as shown in Fig. 9,10, described piston rod 230 is connected to the below of the straightway of described synchronous cog belt 580, U-shaped gathering sill 234 is also provided with in described piston rod 230 bottom, also being provided with upper surface in described active synchronization belt wheel 550 bottom coordinates for leading and supporting the pulley 235 of this piston rod 230 with described U-shaped gathering sill 234, play guiding and supporting role, improve life of product and reduce noise.Concrete, hold greatly end face also can be provided with the axial depression parallel with described piston ring 220 contoured surface at described piston rod 230 during enforcement, thus be convenient to arrange device in the end back side greatly at piston rod 230, be convenient to piston rod 230 and adopt U-type groove structure with piston ring 220 cooperation place, ensure that piston ring 220 is located and firmly avoid piston rod 230 processing difficulties problem simultaneously.
Concrete, as shown in figure 11, corresponding pulley 235 is fixed on this inner support 400 by wheel seat 236, and this wheel seat 236 is made up of the first pedestal 237 and the second pedestal 238 split.
During enforcement, can as shown in Figure 1, the gap location of cylinder 210 body between open end side and gear transmission unit 500 is also provided with the flexible gasket 5113 for playing damping effect; Cylinder 210 blind end midline position is also provided with the screw location-plate 211 for being located relative to gear transmission unit 500 by cylinder 210, in the middle part of screw location-plate 211, be provided with through hole; This screw location-plate 211 setting position ensure that the location of cylinder 210 is firm, accurately, avoid the axis of cylinder 210 and the skew of piston rod 230 line of motion centering, reduces because loosening the vibrations etc. caused.During enforcement, at cylinder 210, some screw location-plates also can be set, with auxiliary positioning.
During enforcement, can as shown in Fig. 1,12, the sidewall of cylinder 210 is also provided with the bypass interface 250 with its axes normal near its blind end, and cylinder driving unit 200 also comprises the pressure override valve 260 be connected with described bypass interface 250 by trachea.Bypass interface connects trachea, and it is laterally disposed so that corresponding bypass interface 250 and trachea are covered bypass interface that housing 300 need increase size, reduces the overall volume of product; The setting of pressure override valve 260 makes product have the function of overpressure protection; when piston rod 230 backhaul; if pump orifice 240 blocks (connected trachea blocking or trachea are bent); very large malleation can be produced in cylinder; pressure override valve 260 can be opened when malleation and Exhaust Gas, improves Product Safety and service life.
Concrete, as shown in figure 14, pressure override valve 260 can comprise valve body 261, valve gap 262 and valve block 267, wherein, described valve body 261 has an exhaust gas inside road, described exhaust duct has air inlet 263 and air vent 264, and described air inlet 263 is connected by trachea with the bypass interface 250 of described cylinder 210; Described valve block 267 is elastomeric material material, its inner face touch the sealing surface of described valve body 261, the relatively described valve body 261 in its top is located, the sphere 265 of one projection is set in the middle part of it, the steam vent 264 that this sphere 265 aims at described valve body 261 forms hermetically-sealed construction, the bottom of described valve block 267 is fish hook bending, the position that it bends up adopts structure thicker, this structure plays the effect of elastic compression, making valve block 267 compress steam vent 264 when malleation is little, only having the release that to be just open when being just pressed onto certain value.Described valve body 261 is also provided with the cavity of isolating with described sealing surface, the tail end that described valve block 267 bends up position is embedded in described cavity.This structure ensure that the reliability that air vent 264 is closed, and avoids the pressure override valve 260 that aging, the problem such as cannot to reset causes and loses efficacy, structure simple and durable.Concrete, valve block 267 is fixing in sus-pension, is provided with sphere 265 therebetween; Upon inhalation, be that negative pressure valve block 267 seals up bleeder port in cylinder, when aerofluxus, be open disappointing if produce malleation valve block 267, avoid malleation to produce.This pressure override valve 260 is upright type of design, i.e. the contact surface of valve block 267 and steam vent 264 and horizontal plane.
Concrete, as shown in Figure 10,11, driven synchronous pulley 570 can comprise a tubular synchronizing belt gear 5701; Synchronizing belt gear 5701 comprises outer cylindrical gear profile and endoporus 572, and wherein endoporus radially has at least one inner concave shape oil groove 5721; Described driven synchronous pulley 570 also comprises the axis 571 through described synchronizing belt gear 5701 endoporus 572; Described axis 571 has draw-in groove in the lateral surface position, two ends of the described synchronizing belt gear 5701 of correspondence, and described draw-in groove has also been installed with the circlip 5723 of position-limiting action.
During enforcement, can as Fig. 9, 10, shown in 11, Timing Belt support 560 adopts and overlooks the body structure that takes the shape of the letter U, its bottom is set to passage body 5114 structure with through hole structure, the through hole of passage body 5114 and the open communication of described U-shaped body, driven synchronous pulley 570 is across at described U-shaped body opening part, active synchronization belt wheel 550 is arranged in described passage body 5114, the U-shaped body opening part bilateral symmetry arranging driven synchronous pulley 570 is provided with L shape mounting groove 562, the elongated slot of L shape mounting groove 562 is parallel with described synchronous cog belt 580 transmission direction, the short groove of L shape mounting groove 562 extends to the end face of described Timing Belt support 560, the through hole of piston rod 230 penetration channel body 5114.This compact conformation, intensity might as well.
Concrete, as shown in Figure 10, axis 571 two ends of driven synchronous pulley 570 also have the step surface 5713 installing location in the outside of circlip 5723, packing ring 5712 medial surface is stuck on step surface 5713, the medial surface of lateral surface and Timing Belt support L shape mounting groove 562 is close to, and the part that L-type mounting groove is stretched out at axis 571 two ends is screwed into locking by screw 5711.This design achieves the function of driven synchronous pulley with minimum volume.
During enforcement, can as shown in Figure 1, 2, control circuit board 600 is arranged on above described cylinder driving unit 200, at piston rod 230, piston ring 220 and cylinder 210 inwall upper end surface is provided with magnetic piece 221; Control circuit board 600 is provided with the Hall element for responding to this magnetic piece 221 position; By the induction effect between Hall element and magnetic piece 221, piston rod 230 position can be judged, correct the control process of control data and motor 120, such as continue to rotate to a direction when control circuit controls motor 120, now Hall element detects magnetic piece 221, illustrate that piston rod 230 arrives precalculated position, control circuit calibrates internal parameter control accordingly, and controls motor 120 and reverse after predetermined stroke.During enforcement, for increasing piston rod 230 stroke, reducing structural volume, on square duct, the position that crosses of corresponding described magnetic piece 221 movement locus is also provided with empty avoiding breach 5115; Described control circuit board 600 also includes and rotates for controlling described electric motor units 100 rotation direction, velocity of rotation, rotational travel and the circuit of rotating transformation period that export.
During enforcement, can as shown in Fig. 9,11, cylinder driving unit 200 can be provided with the returning buffering spring 543 for reducing backhaul vibration, and described returning buffering spring 543 is wind spring.Power output shaft 540 stretches out one end of described gear-box 510 body with flat groove breach 542, is also provided with a hanging column 514 outside described Timing Belt support 560 on the side of described power output shaft 540; One end of described returning buffering spring 543 is installed on described flat groove breach 542, and the other end is installed on described hanging column 514; The outer end of described hanging column 514 is provided with the step departed from for blocking described returning buffering spring 543.Returning buffering spring 543 orders about piston rod 230 and departs from cylinder 210(and order about cylinder driving unit 200 air-breathing), like this in cylinder 210 breathing process, the driving force of returning buffering spring 543 can reduce the load of motor 120, plays the effect of balance motor power; In cylinder 210 aerofluxus (piston rod 230 return) process, the resistance of returning buffering spring 543 need be overcome, for returning buffering spring 543 gathers elastic potential energy; Because after cylinder 210 air-breathing, its inner chamber forms region of no pressure, piston rod 230 meeting returning quickly under pull of vacuum effect when backhaul, and produce noise and vibrations, therefore the setting of returning buffering spring 543, cushion this process dexterously, reduced noise and vibrations and gather potential energy for breathing process.
During enforcement, can as shown in Figure 10,11, power output shaft 540, across on two bearing pivot, arranges active synchronization belt wheel 550 in the middle of power output shaft 540.Such structure compares the output shaft that conventional gearbox is stretched out in bearing outer end, rotates exactly more.
During enforcement, can as Fig. 8, shown in 11, described power motor unit 100 comprises motor 120, soft packing ring and radiator shutter 141, in fact motor 120 comprises the motor output shaft 110 being positioned at and the axis of its main body extends to form forward is that motor shaft all has extension to two ends with the extension 130(formed that extends back, motor output shaft 110 and extension 130 all belong to a part for motor shaft), described helical gears 521 are fixed on described motor output shaft 110, described soft packing ring is arranged between the main body of helical gears 521 and described motor 120, and the end face of described soft packing ring and helical gears 521 and the main body end face of described motor 120 are close to, to ensure that motor output shaft 110 axial jump can not occur, and play the effect that lubrication reduces friction, the noise produced when relatively rotating between reducing between helical gears 521 and motor body.
During enforcement, can as shown in Figure 10,11, in gear-box 510, the outer end place of corresponding described motor output shaft 110 is also provided with supplemental support bearing; This supplemental support bearing coordinates with the outer end of motor output shaft 110, and make to immobilize in motor output shaft 110 load rotary course shape, guarantee the stability of rotation of this motor output shaft 110, travelling gear reliably bites conjunction.During enforcement, in gear-box 510, be also provided with mesopore penetrate gear-box 510 and for attachment screw described motor 120 body is locked at screw hole post 5125 on described gear-box 510.
During enforcement, with reference to shown in Fig. 1,8,11, radiator shutter 141 is fixed on extension 130, and radiator shutter 141 comprises the blade unit (in illustrated embodiment being 6) of at least two radially irradiation structures, be set in distance between every two blade units, form induction gap 142; Control circuit board 600, then comprise motor rotations sensor circuit, circuit also comprises the infrared inductor 150 at the blade unit interval for responding to radiator shutter 141, and this infrared inductor 150 comprises a U-lag, and the rotary motion trace line of described radiator shutter 141 passes the centre of described U-lag.Infrared inductor 150 can make one piece little circuit board 151 outside independent of control circuit board 600, is fixed near radiator shutter 141 to facilitate detection.Embodiment as shown in the figure, radiator shutter 141 comprises the blade unit of six radially irradiation structures, and to 6 should be had to respond to gaps 142, then infrared inductor 150 often detects and once responds to gap 142, and namely motor 120 has turned over 1/6 circle.The number of turns of transmission when active synchronization belt wheel 550 rotation of correspondence of the number of turns combination gear case rotated by motor 120, then be converted into the stroke pulling piston rod 230, then be converted into the vacuum of cylinder 210 generation.Radiator shutter 141 has thermolysis simultaneously, when the positive steer motor 120 direction blowing of radiator shutter 141, is discharged to outside housing by housing interior-heat.When radiator shutter 141 reverses, by outer for housing new air intake cooling, thus reach the effect of heat exchange.
The embodiment of the reciprocal aspirator of a kind of Compact structural of the present invention, with reference to shown in Fig. 1,7,8, an inner support 400 also can be included in described housing 300, power motor unit 100, gear transmission unit 500 and cylinder driving unit 200 are all connected in described inner support 400, the setting of inner support 400 makes each unit be combined as a whole more closely, enhance the position-limiting action to each unit, improve service life, reduce vibrations.During enforcement, be also provided with the flexible gaskets 410 of buffer action at inner support 400 and the connecting portion of housing 300.Housing 300 and the inner support 400 being fixed with aforementioned each unit effectively intercept by flexible gaskets 410, and the vibrations of buffering abatement, reduce the transmission of noise and vibrations.
During enforcement, with reference to shown in Fig. 1, the whole vital part of aspirator can be arranged on inner support 400, does not have part and housing rigid contact, decreases vibration to greatest extent and passes to outside housing 300.Can be connected by the screw penetrating flexible gaskets 410 center between inner support 400 with housing 300 and locate.
During enforcement, can be as shown in Figure 7, the position of corresponding described power motor unit 100, gear transmission unit 500 and cylinder driving unit 200 on the principal plane of inner support 400, is provided with indent motor slot 420, inner concave gear case groove 440 and indent cylinder groove 430 in depression respectively; Gear transmission unit 500 and described cylinder driving unit 200 are embedded in described inner concave gear case groove 440 respectively with described indent cylinder groove 430; Realize the firmly spacing of each unit and strengthen inner support 400 self-strength with stereochemical structure.Arrange in empty avoiding between power motor unit 100 and indent motor slot 420, avoid vibrations contact to transmit, and convenient heat radiation.
During enforcement, can as shown in Figure 7, described inner concave gear case groove 440 also includes and overlaps 441 with the flexible buffer of its trough body structure adaptation, and this flexible buffer cover 441 isolation is arranged between described gear transmission unit 500 and described inner concave gear case groove 440.Because gear transmission unit 500 belong to intensity high, shake large device, by flexible buffer cover 441, the effect of isolation, damping vibration can played is set.
During enforcement, can as shown in Fig. 5,7, uniformly in indent motor slot 420 be provided with passage 421, housing 300 is provided with louvre 422 with corresponding position, passage 421 position; Form heat radiation wind path, auxiliary heat dissipation.
During enforcement, can as shown in Fig. 7,9, the both sides of indent cylinder groove 430 are provided with long narrow little in addition, coordinate cylinder opening place to stretch out the installation of fixing ear.This little is also vertically provided with four columns, and control circuit board 600 is arranged on these four columns.Facilitate wiring, facilitate the detection of Hall element to magnetic piece 221 to make equipment keep compact, and (housing directly overlaps box) convenient for assembly.
During enforcement, as shown in Figure 1, corresponding described filtering magnet ring 451, is also provided with filtering magnet ring groove 450 at inner support 400, and filtering magnet ring 451 is embedded in this filtering magnet ring groove 450.Built-in magnet ring more easily can change model to meet the demands.
The reciprocal suction device embodiment of Compact structural of the present invention, with reference to shown in Fig. 1-6, described housing 300 is made up of upper shell 310 and lower house 320 split, inner support 400 is connected with described lower house 320, upper shell 310 end face is provided with operation interface 350, the button being provided with display screen and arranging around display screen in operation interface 350; Housing 300 outline is the rectangular shape of edge chamfer, and a vertical side of housing 300 has the chamfer radius larger compared with other edge; Housing 300 outside is also provided with convex anti-slip veins 343.
Concrete, can be as shown in figures 1 to 6 during enforcement, the vertical side of described larger chamfer radius is arcuation angle, on the upper side 341 that anti-slip veins 343 is arranged on this housing 300 and downside 342, in these decorative pattern convex shapees 343 some be parallel to each other, it is transversely arranged is respectively arranged on this upper side 341 and this downside 342.Convexly on the front 344 of this housing 300 be provided with guidance panel boss 345, this guidance panel boss 345 and the position that crosses in this front 344 are that round and smooth camber line designs.Operation interface 350 is arranged on this guidance panel boss 345.The design of this surface structure can promote aesthetic appearance of the present invention greatly.
Concrete, can as shown in Figure 6, described operation interface 350 is rounded, and described display screen is two and is disposed side by side on this regional center and is respectively used to show the LED display of suction and velocity amplitude; Described button ovalize is provided with seven altogether, comprise: " open/suspend " key being arranged on described display screen top, be separately positioned on memory button and the massage key on described display screen both sides, be arranged on below corresponding LED display, increase/subtract key in two speed be arranged above and below, and increase/subtract key in two suction be arranged above and below.The interface that close friend that it provides uses, the operation that makes to suck is more prone to convenient, at utmost meets user's operation requirements easily.
Concrete, can be as shown in Figure 1 during enforcement, these buttons can make film like, corresponding button entity setting up is on control circuit board 600, para-position both when housing 300 assembles coordinates, and realizes keypress function, and described display screen is then corresponding transparent window, display screen entity setting up is on control circuit board 600, and after housing 300 assembles, display screen entity is just in time positioned at below transparent window.
During enforcement, described flexible gaskets 410, flexible buffer cover 441, flexible gasket 5113, flexible buffer pad, can be silica gel material, quality of rubber materials, silicone rubber material etc. have flexible nature material form.Described soft packing ring can be that nylon washer etc. is wear-resisting and have certain elastic packing ring.
For the control principle of present device, following scheme can be adopted: described operation interface function is realized by control circuit board 600 during concrete enforcement, control circuit board 600 comprises programmable control module, pulse width modulation (PWM) module, bridge power amplification module and infrared induction input module.The flow process of programmable control module control circuit board, logic and calculating.When pressing " open/suspend " key, if motor 120 is in halted state, bridge power amplification module exports forward current, and motor 120 piston rod 230 pulls out; If motor 120 is in running status, stops electric current exporting and device is stopped.When piston rod 230 pulls out, the number of times that infrared induction input module record is responded at infrared inductor 150 by the sense interval 142 of described radiator shutter 141, programmable control module calculates motor 120 and rotates the number of turns, by the rotation ratio that gear transmission unit 500 is fixing, calculate the stroke that piston rod 230 pulls.Bridge power amplification module exports reverse current after piston rod 230 arrives stroke, piston rod 230 is oppositely return. when the magnetic piece 221 on piston rod 230 is sensed by the Hall element of start position, bridge power amplification module exports forward current again, next circulation of piston rod 230.Increase/subtract key when pressing suction, the progression of programmable control module record suction display, conversion motor 120 rotates the number of turns accordingly, changes the stroke of piston rod 230.When the speed of pressing increases/subtract key, the corresponding change outputting drive voltage of pulse width modulation (PWM) module, thus increase/subtract motor 120 rotating speed, thus the speed of increasing/deactivation stopper rod 230.When pressing memory button, the suction of programmable control module record current setting and velocity amplitude (or replying suction and speed to memory value).When pressing massage key, programmable control module control piston bar 230 runs in a specific speed and suction value.
During enforcement, described gear housing can adopt full-aluminum alloy and gear can adopt high accuracy Steel material, with effectively transmit high-power and under full load high-speed cruising, substantially increase the efficiency that sucks, inhibit operation noise.Compare traditional plastic gear casing, plastic gear and without support Design, it is more reliable, solid, durable; The material of high strength makes gear reduction less than traditional reducing gear tightr.
The present invention also provides a kind of breast pump, and its feature is to comprise the reciprocal aspirator of Compact structural as the aforementioned.
During enforcement, this breast pump also comprises the trachea and breast cup that connect pump orifice 240.The reciprocal aspirator of aforesaid Compact structural is the power providing unit of this breast pump.
The breast pump built by the reciprocal suction device embodiment of a kind of Compact structural as shown in figures 1-15: its main body (power providing unit, the i.e. reciprocal aspirator of Compact structural) volume can do to adult's hand size, facilitates suckling mother to carry out using; It is applicable to adopting heavy caliber cylinder and Long travel cylinder, and end breast cup dynamic magnetism can reach the performance of hospital-grade breast pump; Its high efficiency electric breast pump of one built, suckling mother uses this device to suck can save milk elicitation time, increases the amount of sucking; It can adopt Full steel gear structure, Timing Belt air cylinder driven, and returning buffering spring design, and operation noise is effectively suppressed, and when suckling mother is sucked, baby is interference-free.It, by the bottom of flexible buffer cover 441 parcel gear-box, makes it to isolate with inner support, does not have rigid contact; There is flexible gaskets 410 to isolate between inner support and drain pan, there is no rigid contact; There is flexible gasket 5113 to isolate between cylinder and gear housing joint face, there is no rigid contact.The present invention uses flexible material to isolate vibrating between the assembly that may transmit as far as possible, operation noise is effectively suppressed further, reduces the noise of electric breast pump to greatest extent.
During enforcement, this breast pump can use DC source, and after plugging in, breast pump is beeped and pointed out power supply to connect, LCD display display suction and speed.When pressing " open/suspend " key once, cylinder 210 presses suction and the reciprocating motion of speed progression of LCD display, exports vacuum on breast cup at cylinder 210 end trachea.User can increase/subtract key by suction and regulate suction, and Negotiation speed increases/subtract key governing speed.Press the massage key on operation interface 350 as user, cylinder 210 is by quick little stroke suction, and little pull of vacuum altofrequency outputs to breast cup makes breast reach massage effect, stimulates the secretion of milk and increases milk amount.When user presses the memory button on operation interface 350, the suction and velocity composition wanted can be remembered, also can return suction and the speed of memory before establishing.
The reciprocal aspirator of a kind of Compact structural that the present invention improves, it also may be used on other fields needing to produce small displacement vacuum, includes but not limited to the fields such as medical treatment, health care, beauty treatment.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (24)
1. the reciprocal aspirator of Compact structural, it comprises power supply, housing (300) and be arranged in this housing (300) for providing the power motor unit rotating original moment (100), for the rotation of described power motor unit (100) being exported the gear transmission unit (500) carrying out slowing down and commutating, distortion is amassed thus the cylinder driving unit (200) exporting suction and the control circuit board (600) controlled for function for the Power output of described gear transmission unit (500) being converted to own content, it is characterized in that: described power motor unit (100) and described cylinder driving unit (200) are side by side in axis being parallel layout, and be attached thereto in the same side of gear transmission unit (500), also include for the synchronous belt drive mechanism as described gear transmission unit (500) clutch end.
2. the reciprocal aspirator of Compact structural as claimed in claim 1, it is characterized in that: described gear transmission unit (500) comprises gear-box (510) for realizing described deceleration and commutation, for the synchronous belt drive mechanism as described gear transmission unit (500) clutch end, and connect as one for being connected the Timing Belt support (560) of locating described synchronous belt drive mechanism with described gear-box (510); Described synchronous belt drive mechanism comprises the active synchronization belt wheel (550) and driven synchronous pulley (570) that synchronous cog belt (580) and this synchronous cog belt (580) coordinate, and described active synchronization belt wheel (550) accesses the clutch end of described gear-box (510).
3. the reciprocal aspirator of Compact structural as claimed in claim 2, it is characterized in that: described gear-box (510) comprises the helical gears (521), the first duplicate gear (523), the second duplicate gear (532) and the conical gear (533) that engage successively, wherein helical gears (521), the first duplicate gear (523), the second duplicate gear (532) axis being parallel are arranged and in deceleration fit structure, and described conical gear (533) arranges with described second duplicate gear (532) axes normal and coordinates and realize transmission by boring tooth and commutate; Described gear-box (510) also comprises the power output shaft (540) being used as described clutch end; Described conical gear (533) is fixed on one end of this power output shaft (540); The Power output that described active synchronization belt wheel (550) accesses described gear-box (510) refers to that the active synchronization belt wheel (550) of described synchronous belt drive mechanism is also fixed on this power output shaft (540).
4. the reciprocal aspirator of Compact structural as claimed in claim 3, is characterized in that: described first duplicate gear (523) and the second duplicate gear (532) respectively by the first gear shaft (522) and the second gear shaft (531) spacing in described gear-box (510); Described first gear shaft (522) is provided with soft packing ring near described helical gears (521) one end, and described first gear shaft (522) is provided with elastic washer, steel washer and soft packing ring successively away from described helical gears (521) one end ecto-entad; Described second gear shaft (531) is provided with the end face sliding bearing (5331) be close to gear face away from described conical gear (533) one end, described end face sliding bearing (5331) concentric locking collar is gone up at the second gear shaft (531) and is engaged on the internal box sidewall of described gear-box (510), is provided with should the radial reinforcement plate structure (5123) of end face sliding bearing (5331) installation position in described gear-box (510) outside.
5. the reciprocal aspirator of Compact structural as claimed in claim 3, it is characterized in that: described gear-box (510) includes gear box casing, described gear box casing and described Timing Belt support (560) are structure as a whole, this integrative-structure is formed by the first half housings (511) and the second half housing (512) splits, described the first half housings (511) and the second half housings (512) in described integrative-structure along the perpendicular segmenting structure at described power output shaft (540) axis place.
6. the reciprocal aspirator of Compact structural as claimed in claim 3, is characterized in that: described power motor unit (100) includes motor (120), and described motor (120) body is a plane by output end, and plane has round boss; Described gear-box (510) is provided with the motor connecting end surface (5111) with the described plane adaptation of motor (120), and motor connecting end surface (5111) is provided with the circular hole with described round boss adaptation.
7. the reciprocal aspirator of Compact structural as claimed in claim 2, it is characterized in that: described cylinder driving unit (200) comprise a cylinder (210), one embedded and the piston rod (230) in T shape along this cross section, embedding direction by described cylinder (210) opening, and one is set in the upper and piston ring (220) coordinated with described cylinder (210) medial wall of this piston rod (230); Also be provided with at the blind end of described cylinder (210) and penetrate described housing (300) sidewall and for inhaling/aerofluxus exports the pump orifice (240) of described suction; The outer end of described piston rod (230) is fixedly connected on described synchronous cog belt (580), and the range of described piston rod (230) under described synchronous cog belt (580) drives equals the range of described piston rod (230) in described cylinder (210).
8. the reciprocal aspirator of Compact structural as claimed in claim 7, it is characterized in that: described piston rod (230) is connected to the below of the straightway of described synchronous cog belt (580), also be provided with U-shaped gathering sill (234) in described piston rod (230) bottom, be also provided with upper surface in described active synchronization belt wheel (550) bottom and coordinate with described U-shaped gathering sill for leading and supporting the pulley (235) of this piston rod (230); End face is held greatly to be also provided with the axial depression parallel with described piston ring (220) contoured surface at described piston rod (230).
9. the reciprocal aspirator of Compact structural as claimed in claim 7, is characterized in that: the gap location of described cylinder (210) body between open end side and described gear transmission unit (500) is also provided with the flexible gasket (5113) for playing damping effect; Described cylinder (210) blind end midline position is also provided with the screw location-plate (211) for being located relative to described gear transmission unit (500) by cylinder (210), is provided with through hole at screw location-plate (211) middle part; The sidewall of described cylinder (210) is also provided with the bypass interface (250) with its axes normal near its blind end, and described cylinder driving unit (200) also comprises the pressure override valve (260) be connected with described bypass interface (250) by trachea.
10. the reciprocal aspirator of Compact structural as claimed in claim 9, it is characterized in that: described pressure override valve (260) comprises valve body (261), valve gap (262) and valve block (267), wherein, described valve body (261) has an exhaust gas inside road, described exhaust duct has air inlet (263) and air vent (264), and described air inlet (263) is connected by trachea with the bypass interface (250) of described cylinder (210); Described valve block (267) is elastomeric material material, its inner face touch the sealing surface of described valve body (261), relatively described valve body (261) location, its top, the sphere (265) of one projection is set in the middle part of it, the steam vent (264) that this sphere (265) aims at described valve body (261) forms hermetically-sealed construction, the bottom of described valve block (267) is fish hook bending, and the position that it bends up adopts structure thicker; Described valve body (261) is also provided with the cavity of isolating with described sealing surface, the tail end that described valve block (267) bends up position is embedded in described cavity.
The reciprocal aspirator of 11. Compact structural as claimed in claim 2, is characterized in that: described driven synchronous pulley (570) comprises a tubular synchronizing belt gear (5701); Synchronizing belt gear (5701) comprises outer cylindrical gear profile and endoporus (572), and wherein endoporus radially has at least one inner concave shape oil groove (5721); Described driven synchronous pulley also comprises the axis (571) through described endoporus (572); Described axis (571) has draw-in groove in the lateral surface position, two ends of the described synchronizing belt gear of correspondence (5701), and described draw-in groove has also been installed with the circlip (5723) of position-limiting action.
The reciprocal aspirator of 12. Compact structural as claimed in claim 7, it is characterized in that: described Timing Belt support (560) overlooks the body that takes the shape of the letter U, its bottom is a passage body (5114) with through hole structure, the through hole of described passage body (5114) and the open communication of described U-shaped body, described driven synchronous pulley (570) is across at described U-shaped body opening part, described active synchronization belt wheel (550) is arranged in described passage body (5114), the U-shaped body opening part bilateral symmetry arranging described driven synchronous pulley (570) is provided with L shape mounting groove (562), the elongated slot of described L shape mounting groove (562) is parallel with described synchronous cog belt (580) transmission direction, the short groove of described L shape mounting groove (562) extends to the end face of described Timing Belt support (560), described piston rod (230) penetrates the through hole of described passage body (5114).
The reciprocal aspirator of 13. Compact structural as claimed in claim 12, it is characterized in that: described control circuit board (600) is arranged on described cylinder driving unit (200) top, at described piston rod (230), piston ring (220) and cylinder (210) inwall upper end surface being provided with magnetic piece (221), described control circuit board (600) being provided with the Hall element for responding to this magnetic piece (221) position; The through hole periphery of described passage body (5114) is square duct, and the position of corresponding described magnetic piece (221) movement locus of described square duct is also provided with empty avoiding breach (5115); Described control circuit board (600) also includes and rotates for controlling described electric motor units (100) rotation direction, velocity of rotation, rotational travel and the circuit of rotating transformation period that export.
The reciprocal aspirator of 14. Compact structural as claimed in claim 3, is characterized in that: described cylinder driving unit (200) is provided with the returning buffering spring (543) for reducing backhaul vibration, and described buffer spring (543) is wind spring; Described power output shaft (540) stretches out one end of described gear-box (510) body with flat groove breach (542), and described Timing Belt support (560) outside is also provided with a hanging column (514) on the side of described power output shaft (540); One end of described returning buffering spring (543) is installed on described flat groove breach (542), and the other end is installed on described hanging column (514); The outer end of described hanging column (514) is provided with the step departed from for blocking described returning buffering spring (543).
The reciprocal aspirator of 15. Compact structural as claimed in claim 3, it is characterized in that: described power motor unit (100) comprises motor (120), soft packing ring and radiator shutter (141), described motor (120) comprises the motor output shaft (110) and the extension (130) formed that extends back that are positioned at and the axis of its main body extends to form forward, and described helical gears (521) and described soft packing ring are installed on described motor output shaft (110); Wherein said soft packing ring is positioned between the main body of described helical gears (521) and described motor (120), and the main body end face of the end face of described soft packing ring and helical gears (521) and described motor (120) is close to.
The reciprocal aspirator of 16. Compact structural as claimed in claim 15, it is characterized in that: the outer end place of corresponding described motor output shaft (110) is also provided with supplemental support bearing in described gear-box (510), in described gear-box (510), be also provided with mesopore penetrate gear-box (510) and for attachment screw described motor (120) body is locked at screw hole post on described gear-box (510).
The reciprocal aspirator of 17. Compact structural as claimed in claim 15, it is characterized in that: described radiator shutter (141) is fixed on described extension (130), described radiator shutter (141) comprises the blade unit of at least two radially irradiation structures, is set in distance between every two described blade units; Described control circuit board (600), comprise motor rotations sensor circuit, circuit also comprises the infrared inductor (150) at the blade unit interval for responding to described radiator shutter (141), this infrared inductor (150) comprises a U-lag, and the rotary motion trace line of described radiator shutter (141) passes the centre of described U-lag.
18. reciprocal aspirators of Compact structural as described in any one of claim 1-17, it is characterized in that: also include an inner support (400) in described housing (300), described power motor unit (100), gear transmission unit (500) and cylinder driving unit (200) are all connected in described inner support (400); Described inner support (400) has been provided with the flexible gaskets (410) of buffer action with the connecting portion of described housing (300).
The reciprocal aspirator of 19. Compact structural as claimed in claim 18, it is characterized in that: corresponding described power motor unit (100) on the principal plane of described inner support (400), the position of gear transmission unit (500) and cylinder driving unit (200), respectively depression is provided with indent motor slot (420), inner concave gear case groove (440) and indent cylinder groove (430), arrange in empty avoiding between described power motor unit (100) and described indent motor slot (420), described gear transmission unit (500) and described cylinder driving unit (200) are embedded in described inner concave gear case groove (440) respectively with described indent cylinder groove (430).
The reciprocal aspirator of 20. Compact structural as claimed in claim 19, it is characterized in that: described inner concave gear case groove (440) also includes the flexible buffer cover (441) with its trough body structure adaptation, the isolation of this flexible buffer cover (441) is arranged between described gear transmission unit (500) and described inner concave gear case groove (440).
The reciprocal aspirator of 21. Compact structural as claimed in claim 19, it is characterized in that: uniformly in described indent motor slot (420) be provided with passage (421), described housing (300) is upper is provided with louvre (422) with described passage (421) corresponding position, position; The both sides of described indent cylinder groove (430) are provided with long narrow little in addition, and this little is also vertically provided with four columns, and described control circuit board (600) is arranged on these four columns.
The reciprocal aspirator of 22. Compact structural as claimed in claim 18, it is characterized in that: described housing (300) is made up of upper shell (310) and lower house (320) split, described inner support (400) is connected with described lower house (320), described upper shell (310) end face is provided with operation interface (350), the button being provided with display screen and arranging around display screen in described operation interface (350); Described housing (300) outline is the rectangular shape of edge chamfer, and a vertical side of housing (300) has the chamfer radius larger compared with other edge; Described housing (300) outside is also provided with convex anti-slip veins (343).
The reciprocal aspirator of 23. Compact structural as claimed in claim 22, it is characterized in that: described operation interface (350) is rounded, described display screen is two and is disposed side by side on this border circular areas center and is respectively used to show the LED display of suction and velocity amplitude; Described button ovalize is provided with seven altogether, comprise: " open/suspend " key being arranged on described display screen top, be separately positioned on memory button and the massage key on described display screen both sides, be arranged on below corresponding LED display, increase/subtract key in two speed be arranged above and below, and increase/subtract key in two suction be arranged above and below.
24. 1 kinds of breast pumps, is characterized in that: comprise the reciprocal aspirator of Compact structural as described in any one of claim 1-23.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310057741.9A CN103110989B (en) | 2013-02-25 | 2013-02-25 | A kind of reciprocal aspirator of Compact structural and breast pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310057741.9A CN103110989B (en) | 2013-02-25 | 2013-02-25 | A kind of reciprocal aspirator of Compact structural and breast pump |
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| CN103110989A CN103110989A (en) | 2013-05-22 |
| CN103110989B true CN103110989B (en) | 2016-03-23 |
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| CN201310057741.9A Active CN103110989B (en) | 2013-02-25 | 2013-02-25 | A kind of reciprocal aspirator of Compact structural and breast pump |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10449273B2 (en) * | 2013-07-30 | 2019-10-22 | Koninklijke Philips N.V. | Apparatus and method for evacuating a system |
| CN103566478A (en) * | 2013-10-30 | 2014-02-12 | 樊书印 | Electronic itching stopping device |
| CN103566480A (en) * | 2013-10-30 | 2014-02-12 | 樊书印 | Electronic itching stopping device |
| CN203763554U (en) * | 2014-01-25 | 2014-08-13 | 郭永风 | Host of electric breast pump |
| CN103956810A (en) * | 2014-03-31 | 2014-07-30 | 刘骏涛 | Hand charger |
| WO2017157691A1 (en) * | 2016-03-17 | 2017-09-21 | Medela Holding Ag | Medical suction pump |
| CN109330537B (en) * | 2018-12-12 | 2021-10-29 | 江苏省特种设备安全监督检验研究院 | Adjustable special type protection shoes cleaning machines people |
| CN110075375B (en) * | 2019-06-03 | 2023-08-15 | 小白熊（上海）母婴用品有限公司 | Mute method of electric breast pump and electric breast pump |
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| CN201375699Y (en) * | 2009-02-15 | 2010-01-06 | 郭永峰 | Piston type breast pump |
| CN203090025U (en) * | 2013-02-25 | 2013-07-31 | 郭永风 | Compact-structure type reciprocating aspirator and breast pump |
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| US20040024352A1 (en) * | 2001-12-27 | 2004-02-05 | Playtex Products, Inc. | Breast pump system |
| US7534226B2 (en) * | 2005-09-26 | 2009-05-19 | M2 Group Holdings, Inc. | Dispensing fluid from an infusion pump system |
| DE102006009692B4 (en) * | 2006-03-02 | 2008-01-17 | Kaweco Gmbh Fabrik Medizinischer Apparate | Milchabsaugvorrichtung |
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| CN1674949A (en) * | 2002-02-28 | 2005-09-28 | 德尔泰克公司 | Cartridge and pump with axial loading |
| CN201375699Y (en) * | 2009-02-15 | 2010-01-06 | 郭永峰 | Piston type breast pump |
| CN203090025U (en) * | 2013-02-25 | 2013-07-31 | 郭永风 | Compact-structure type reciprocating aspirator and breast pump |
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Effective date of registration: 20200622 Address after: 215600 No.11 Renmin Road, Leyu Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Zhangjiagang Leyu science and Technology Innovation Park Investment Development Co.,Ltd. Address before: 518000 Hydropower Bureau of Futian District Province, Shenzhen three, 4-206, Guangdong Patentee before: Guo Yongfeng |
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Denomination of invention: The utility model relates to a compact reciprocating suction device and a milk sucking device Effective date of registration: 20210830 Granted publication date: 20160323 Pledgee: Bank of Suzhou Co.,Ltd. Zhangjiagang sub branch Pledgor: Zhangjiagang Leyu science and Technology Innovation Park Investment Development Co.,Ltd. Registration number: Y2021980008568 |
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