CN102552034B - Granular drug metering and dispensing device - Google Patents

Abstract

The invention relates to a granular drug metering and dispensing device, which comprises a drug storage container. A discharge opening is arranged at the bottom of the drug storage container, at least one case wheel seat hermetically matching with the discharge opening is disposed at the bottom of the drug storage container, a hollow cylindrical case wheel cavity is arranged in each case wheel seat along a horizontal direction or along a direction similar to the horizontal direction of the case wheel seat, an upper opening of each case wheel cavity is communicated with an inner cavity of the drug storage container, a lower opening of each case wheel cavity is communicated with the outside of the drug storage container, a case wheel which rotatably matches with the corresponding case wheel cavity is arranged in the corresponding case wheel seat, at least one recessed drug containing case is arranged on the peripheral surface of each case wheel, the drug containing cases correspondingly match with the upper openings and the lower openings of the case wheel cavities, and the case wheels are in driving connection with a driving device. The granular drug metering and dispensing device is applicable to dispensing granular drug, is not easy to be locked, and does not need to be detached to clean, and dispensing precision and efficiency are greatly improved. In addition, the granular drug metering and dispensing device is applicable to all types of granules and is also convenient for accurately dispensing drug with microdosage.

Description

Granular drug metering dispensing device

Technical field

The present invention relates to the metering device of a kind of granule or granular material, refer to especially a kind of volumetric metering dispensing device of granular drug.

Background technology

Chinese medicinal granule agent is a kind of convenient type Chinese medicine preparation: single medicinal material is made as to concentrated granular shape electuary in advance and divides and put for subsequent usely, while making up a prescription, according to prescription, required multi-flavor granule is measured respectively, be mixed in and in pouch, issue patient.While taking medicine, tear bag and take after mixing it with water, need not boil medicine, be easy to storage and easy to carry, be day by day subject to extensive welcome.Various metering dispensing devices correspondingly also arise at the historic moment, there are respectively Weighing type and positive displacement two classes, Weighing type device complex and expensive and inefficiency, rare practical application, and positive displacement arrangements is simple in structure, cheap, volume is small and exquisite, the storing medicine bottle that can be every taste medicine is independently equipped with, not only efficiency is higher than Weighing type, be particularly advantageous in while adjustment and avoid medicine cross-contamination, be commonly first-selected pattern, as patent 200820108668.8 can be the canonic form in volumetric metering dispensing device.

Patent 200820108668.8 discloses a kind of quantitative dispensing apparatus for granular preparation, comprise: chassis, haul dish and putty dish, on chassis, offer conveyer trough, haul dish and putty dish are arranged on chassis, on putty dish, be provided with the putty piece that is positioned at this conveyer trough, putty piece can move along conveyer trough under the driving of putty dish; On haul dish, be provided with the haul piece that is positioned at conveyer trough, haul piece can move along conveyer trough under the driving of haul dish, and haul piece matches with putty piece and forms certain space that measures granular preparation; Conveyer trough bottom also offers for guiding granular preparation leak from dispensing device outflow.When its work, haul dish drives haul piece to rotate in conveyer trough, make to form between haul piece and putty piece certain space that measures granular preparation, granular preparation directed enter in this space, then haul dish and putty dish drive respectively haul piece and putty piece to move toward same direction, and move together with the granular preparation that is positioned at above-mentioned space, the medicine on conveyer trough top is blocked by upper scraping disc, thereby only the granular preparation that is positioned at conveyer trough is transported to the position at lower leak place, and by lower leak, granule is derived, if dosage is little, can once complete accumulated dose, when dosage is large, need back and forth.

Volumetric metering dispensing device take above-mentioned pattern as representative has obtained fine application at present, but has some shortcomings, is wherein mainly: (1) transports the easy locking of parts.Transport parts and all make horizontal reciprocating movement between feeding opening and drug row mouth, granule is frictional movement on horizontal plane thereupon.The physical property feature of Chinese medicinal granule agent is frangible and easy to be wet, fragility causes transportation, storage and allocation process inevitably produce micropowder, these are all-pervasive small to micron-sized micropowder, can enter gap everywhere, at horizontal reciprocating friction position, the direction of motion alternation of micropowder is indefinite, very easily be subject to transporting rolling of parts, and then accumulate and be consolidated in friction surface until parts are transported in locking, and the micropowder easily accumulating in the moist gap causing outside air expansion bottle absorbs air moisture and makes moist in the process of long storage time, very thickness of granule after making moist, parts are transported in the locking that very easily bonds, also continue to go deep in bottle through capillary osmosis simultaneously, cause entirety caking in storing medicine bottle and cannot drug.Disassembly, cleaning frequently, even damage parts otherwise will measure misalignment.(2) drug measurement deviation is larger.As patent 200820108668.8 is introduced, its adjustment accuracy rating is: 0.5 gram of following error≤± 10%, and 0.5～1.5 gram of error≤± 8%, more than 1.5 grams error≤± 7%, this deviation range is if dwindled even more ideal; (3) allotment efficiency is difficult to improve.It is idle stroke that the reciprocating motion of transporting parts has half the time, this is not high with regard to efficiency, in the time that adjustment dosage is larger, above-mentioned dispensing device gets deeply stuck in awkward border especially: if keep low speed reciprocal, consuming time very tediously long, if accelerate back and forth, friction condition sharply worsens, and the cementing locking at friction position is more frequent.(4) microdosage inconvenience allotment.The medicine storage cavity of transfiguration adjustment type is in the time turning certain limit down, and the error of drug row amount significantly strengthens, and can not meet the allotment requirement of 0.5 gram of following microdosage; The medicine storage cavity volume of standardize solution adjustment type is fixed, but the unit weight that another physical property feature of Chinese medicinal granule agent is different cultivars (is the weight of unit volume, lower same) widely different, if measure hundreds of granules with a kind of medicine storage cavity of fixing specification, certainly will there be many kinds of medicine microdosage errors to strengthen, can not fully meet equally the allotment requirement of microdosage.

Summary of the invention

Above-mentioned weak point for prior art:

The object of the invention is to: a kind of metering dispensing device that is difficult for locking is provided.

A further object of the present invention is: the metering dispensing device that a kind of precision is higher is provided.

Further object more of the present invention is: the metering dispensing device that a kind of efficiency is higher is provided.

Further object of the present invention is: the metering dispensing device that all kinds of a kind of adaptation are provided.

For realizing object of the present invention, the technical scheme adopting is: granular drug metering dispensing device, comprise drug reservoir, the bottom of described drug reservoir offers discharging opening, the bottom of drug reservoir is provided with the lattice wheel seat that at least one and discharging opening are sealed and matched, in lattice wheel seat along its level or offer the cylindrical lattice wheel chamber of hollow close to the direction of level, the lattice wheel upper shed in chamber and the intracavity inter-connection of drug reservoir, the lattice wheel under shed in chamber and the outside of drug reservoir are connected, in lattice wheel seat, be provided with the lattice wheel that dative wheel chamber is rotatably assorted, on the periphery of lattice wheel, at least offer recessed appearance medicine lattice, hold the upper of medicine lattice dative wheel chamber, the corresponding cooperation of under shed, lattice wheel drives and connects with driving device.

In the two ends end wall in described lattice wheel chamber, be respectively arranged with axis hole, lattice wheel two ends are respectively arranged with axle head, and axle head rotates and is arranged in axis hole, and axis hole end is provided with sludge groove, and sludge groove leads to the outside of discharging opening.Reduce the fixed locking of micropowder of friction surface with this.

The top of described drug reservoir offers charging aperture.

The top of described drug reservoir is provided with the top cover being sealed and matched with charging aperture, and the bottom of described drug reservoir is provided with the bottom being sealed and matched with discharging opening.Reduce the bonding locking of making moist of friction surface with this.

For realizing a further object of the present invention, described drug reservoir inside, the top that is positioned at the upper shed of lattice wheel seat are provided with voltage stabilizing cover.Reduce to hold with this changing bulk density that agent of medicine lattice endoparticle produces because of pressure.

For realizing further object more of the present invention, a kind of granular drug metering dispensing device, arranges two lattice wheel seats in described drug reservoir, its lattice wheel intracavity arranges respectively lattice wheel, one of them lattice wheel surface arranges great Rong medicine lattice, and another lattice wheel surface arranges little Rong medicine lattice.Need the major part in ingredients amount to be measured by great Rong medicine sound of laughing wheel, fraction is by sound of laughing the wheel metering of little Rong medicine.Significantly raise the efficiency with this.

For realizing further object of the present invention, a kind of granular drug metering dispensing device, the appearance medicine lattice of described lattice wheel periphery are subsection setup, the appearance medicine lattice that axial location is identical are measure-alike.One to several sections or each section that block wherein with baffle plate are all opened wide.

Or described drug reservoir bottom is coaxially arranged with at least two lattice wheel seats that are sealed and matched with discharging opening, in two lattice wheel seats, offer respectively the cylindrical lattice wheel chamber of hollow along its horizontal direction, in lattice wheel seat, be respectively arranged with the lattice wheel that dative wheel chamber is rotatably assorted, on the periphery of lattice wheel, offer respectively the different appearance medicine lattice of volume, between lattice wheel, be connected by same power transmission shaft and a driving device.The granule that adapts to various different unit weights with this, guarantees the measuring accuracy of microdosage.

The invention has the beneficial effects as follows: this metering dispensing device be difficult for accumulation micropowder, can effectively prevent that the agent of drug reservoir endoparticle from making moist, make it transport parts and be difficult for locking, and it is without disassembly, cleaning, adjustment precision and efficiency greatly improve, and the adaptive all kind granules of energy, are also convenient to accurately allocate microdosage.

Accompanying drawing explanation

Fig. 1 is that each modular construction and the installation of the embodiment of thepresent invention 1 is related to schematic diagram;

Fig. 2 is that in Fig. 1, the assembling of each parts is ready and store up the device schematic diagram into granule;

Fig. 3 is the drug row schematic diagram of lattice wheel in Fig. 1;

Fig. 4 is the appearance medicine lattice schematic diagram in Fig. 1;

Fig. 5 is the A-A cutaway view of Fig. 3;

Fig. 6 is drug storage bottle grafting drug sack-filling device schematic diagram;

Fig. 7 is that drug sack-filling device is to the driving of metering dispensing device and control schematic diagram;

Fig. 8 is lattice wheel and the lattice wheel chamber schematic diagram thereof thatembodiment 1 arranges axle head;

Fig. 9 is thatembodiment 1 bottom arranges flexible braking stake schematic diagram;

Figure 10 is 2 pairs of lattice wheel construction schematic diagrams of the embodiment of the present invention;

Figure 11 is that medicine lattice and baffle plate schematic diagram are held in the embodiment of thepresent invention 3 segmentations;

Figure 12 is the another kind of structural representation that in the embodiment of thepresent invention 3, medicine lattice and baffle plate are held in segmentation;

In figure: 1, top cover, 2, drug storage bottle rubber seal suitable for reading, 3, drug reservoir, 3-1, charging aperture, 3-2, discharging opening, 4, voltage stabilizing cover, 5, bottom, 6, bottom rubber seal, 7, lattice wheel seat, 7-1, the upper shed of lattice wheel seat, 7-2, lattice wheel seat under shed, 7-3, lattice wheel chamber, 7-4, lattice wheel chamber end wall, 8, lattice wheel, 9, hold medicine lattice, 9-1, one of medicine lattice are held in segmentation, 9-2, two of medicine lattice are held in segmentation, 9-3, three of medicine lattice are held in segmentation, 10, swivel pin, 11, granule, 12, hasp, 13, the micropowder of discharging, 14, row's powder constriction, 15, travelling gear, 16, the plug socket of drug sack-filling device, 17, lattice wheel drive motor, 18, driven wheel, 19, idler gear, 20, Magnet, 21, hall device, 22, lattice axle end, 23, sludge groove, 24, resilient stake, 7 ', another lattice wheel seat, 7-3 ', another lattice wheel chamber, 8 ', great Rong medicine sound of laughing wheel, 9 ', great Rong medicine lattice, 28, segmented baffle, 29, additional storing medicine bottle.

The specific embodiment

Below by specific embodiment, granular drug metering dispensing device of the present invention is described in further detail.

Described in the each embodiment of this description, the end at each position is consistent with end and the side of the equal dative wheel of side, and lattice wheel axis is oriented to end, and axis parallel direction is side.

Embodiment 1

The present invention is based on the research to micropowder behavior in dispensing device, disclose micropowder and can be ground fixed and parts are transported in locking at friction surface, also can import the moisture locking that bonds from the external world by gap and transport parts, in other words, once micropowder gathers, wet and all can locking transport parts no matter dry, the basic structure of the existing the object of the invention of historical facts or anecdotes comprises two aspects, the one, take turns as transporting parts using the lattice of axis horizontal setting, make carriage direction approach to greatest extent gravity direction, all give outlet and the trend of micropowder to determine at each position, greatly weaken the condition of its accumulation, significantly to reduce the fixed locking of friction surface, the 2nd, by drug storage bottle upper and lower opening and add a cover, in the time of storage configuration, upper flap presses closer lid, end opening covers tightly bottom, the gap of transporting parts each portion relevant to it parts is just no longer communicated with the external world, and while opening supplementary granule suitable for reading, end opening still covers tightly, described gap is not directly communicated with extraneous, imports steam and the bonding locking causing of making moist significantly to reduce the micropowder accumulating in these gaps.

The present embodiment shows the concrete anti-lock structure of technique scheme, and the structure of associated components and assembly relation be referring to Fig. 1, assembles ready and stores up device into granule referring to Fig. 2.Wherein:

(1) for the fixed locking of friction surface---in Fig. 1, Fig. 2, the interior hole shape lattice wheel chamber 7-3 that axis horizontal is set of lattice wheel seat 7.Lattice wheel 8 rotates and is arranged in lattice wheel chamber 7-3, and the two is moving cooperation the between hole and axle.Horizontally rotate with respect to axis is vertically disposed, thelattice wheel 8 of axis horizontal setting belongs to vertical rotary.The periphery oflattice wheel 8 is uniformly distributed several and holdsmedicine lattice 9, and the volume of eachappearance medicine lattice 9 all equates.Thelattice wheel seat 7 that has packedlattice wheel 8 into is fixing along Fig. 1 up arrow directionthreading drug reservoir 3, now,lattice wheel seat 7 is sealed and matched with the discharging opening 3-2 ofdrug reservoir 3, is communicated with the lattice wheel seat upper shed 7-1 indrug reservoir 3 drug storage spaces for entering medicine passage, and lattice wheel seat under shed 7-2 is drug row passage.Top cover 1 connects thedrug reservoir 3 storing up intogranule 11 along Fig. 1 down arrow direction.Lattice wheel 8 does not rotate at ordinary times, the top that thegranule 11 indrug reservoir 3 is intercepted atdrug reservoir 3 by lattice wheel 8.Again referring to Fig. 3, need to allocate time, make lattice taketurns 8 one-directional rotation, theappearance medicine lattice 9 of its periphery are corresponding lattice wheel seat upper shed 7-1 and the under shed 7-2 of being communicated with cyclically, and thegranule 11 indrug reservoir 3 is just taken turns the drug row passage discharge of entering medicine passage and be transported to its underpart from the upper side of 8 vertical rotary by lattice.

Obviously,lattice wheel 8 is also that a kind of standardize solution transports parts, and every kind of medicine is all demarcated the grams that every lattice hold in advance, needs the accumulated dose of allotment by holding one by one adding and reaching of the medicine lattice amount of producing.Holding medicine lattice 9 is exactly the pit that lattice are takenturns 8 peripheries, takesturns 8 axis directions be of a size of the length L of holdingmedicine lattice 9 along lattice, takesturns 8 circumferencial directions be of a size of the width W of holdingmedicine lattice 9 along lattice, and Fig. 4 shows and holdsmedicine lattice 9 with the part of lattice wheel 8.Become groove from pit if the length ofappearance medicine lattice 9 is more than or equal to the width oflattice wheel 8, separately do not illustrate.

Horizontal reciprocating movement is just the effect of gravity to granule and micropowder thereof with the difference of vertical one-directional rotation: the former granule and micropowder thereof are all that level is transported, vertical with gravity direction, the effect of gravity is that short its is stranded in horizontal rubbing surface, add alternation indefinite roll direction, more aggravate gathering of micropowder fixed, and the latter's granule and micropowder thereof are all to transport from top to bottom, consistent with gravity direction, most ways of transporting, the effect of gravity is all to help it to leave friction surface, still see Fig. 3, the first quartile inlattice wheel chamber 7 in the drawings, its bore area is recessed cylinder, only have the second quadrant just to have fovea superior, but be all also to tilt descending, gravity all contributes to it to leave friction surface to move towards under shed 7-2, and other quadrants are emptying appearance medicine lattice.Again as seen from Figure 5, the end face oflattice wheel 8 and the inner vertical walls friction ofdrug reservoir 3, gravity also contribute to the to bleedmicropowder 13 in the two end face gap is dischargeddrug reservoir 3, it is also row's powder passage that lattice are taken turns constriction 14 between 8 other ends and travellinggear 15, andmicropowder 13 arrives and just no longer rolled here and with the smooth and easy discharge of rotation oflattice wheel 8.

The end opening ofdrug reservoir 3 can be connected with drug sack-filling device, also can be connected with additional storing medicine bottle 29 (the descending same) suitable for reading ofdrug reservoir 3, as shown in Figure 6: 3 times opening's edge down arrow directions of drug reservoir are plugged in theplug socket 16 of drug sack-filling device, the drivenwheel 18 of the latticewheel drive motor 17 onplug socket 16 drives thetravelling gear 15 of lattice wheel one end to make 8 rotations of lattice wheel throughidler gear 19, the surperficial uniform case sensing mark oftravelling gear 15, the appearance medicine lattice quantity of its quantity dative wheel equates, drug sack-filling device is also provided with the sensor corresponding to these sensing marks, the lattice number turning over by these sensing mark perception, thereby control the dose that of granule 11.Described sensing mark can be Magnet or hole, and corresponding sensor is hall device or reflective infrared device.The sensing of the present embodiment is masked asMagnet 20, and sensor ishall device 21, referring to Fig. 7.Discharge themicropowder 13 of discharging opening 3-2 and also together go to drug sack-filling device with the granule that leaves under shed 7-2, micropowder output, is very little, can not affect measuring accuracy.The kind of drive except above-mentioned points, all can apply by some other known drive mechanism, and for example, latticewheel drive motor 17 axle heads also can arrange worm screw, directly drive lattice to take turns the worm gear of 8 one end, separately do not repeat and illustrate.The non-category of the present invention of drug sack-filling device, no longer launches to describe in detail.

Above-mentionedlattice wheel 8 is wheel and axle inlattice wheel chamber 7, it is a kind of very simple and practical structure, in order to intercept more reliably granule, also can taketurns 8 two ends atlattice axle head 22 is set, the both ends of the surface inlattice wheel chamber 7 arrange respectively lattice wheel chamber end wall 7-4, on it, correspondence arranges axis hole,axle head 22 rotates and is arranged at axis hole, and at thismoment sludge groove 23 can be set in axis hole end, the outlet of leaving axis hole is provided to the micropowder that enters axis hole,sludge groove 23 leads to outside discharging opening 3-2, referring to Fig. 8.Further again, can helicla flute be set at the periphery of twoaxial ends 22, when being 8 rotation of lattice wheel, its rotation direction impel micropowder to move to sludgegroove 23, separately do not illustrate.

Thereby the present invention adopts the lattice wheel of vertical one-directional rotation can effectively improve the moving situation of micropowder, significantly reduces the fixed locking of friction surface.Through actual testing authentication, as long as granule does not make moist, even long-term continuous operation, micropowder can not gather fixed yet, transports parts without cleaning.This also shows simultaneously, keeps the dry very important of granule.

(2) the bonding locking causing for making moist---still see Fig. 2, the charging aperture 3-1 ofdrug reservoir 3 is threaded withtop cover 1 or additionalstoring medicine bottle 29, seam arranges rubber seal 2,bottom 5 is hinged and is connected to the outer wall of discharging opening 3-2 throughswivel pin 10, anddrug reservoir 3 end openings andbottom 5 seams arrange rubber seal 6.At granule, during in storage configuration, upper flap presses closer covers and useshasp 12 fasteningbottoms 5, and lattice wheel is just no longer communicated with the external world with the gap of its each portion parts, while opening supplementary granule suitable for reading, end opening still covers tightly, and described gap is not directly communicated with extraneous, so can be effectively moistureproof.Although will openbottom 5 when allotment, as Fig. 3, because the allotment time is than resting period much shorter, the one complete drug row that stops to be deployed,bottom 5 is closed again at once, recovers airtight storage configuration, the time that lasting exposure is made moist is of short duration, so making moist during allotment is extremely slight.

Describedbottom 5 inwalls also can arrange theresilient stake 24 of spring or rubber-like corresponding to travellinggear 15 or worm gear place, with afterhasp 12 fasteningbottoms 5,resilient stake 24 can prop upgear 15 or worm gear, makes the case positive lock during storage oflattice wheel 8, referring to Fig. 9.

Or the upper and lower opening of drug reservoir is all designed to round mouth, bottom is dome, and the suitable for reading and top cover of drug reservoir or additional drug storage bottleneck are threaded, and the end opening of drug reservoir is also threaded with bottom, and upper and lower seam all arranges rubber seal, does not separately illustrate.

Thereby the present invention adopts the bonding locking causing that can effectively keep away from moisture of the storing medicine bottle of upper and lower opening and air-tight manner thereof.

For realizing a further object of the present invention, first notice that the granule that thegranule 11 plaid matching wheel seat upper shed 7-1 places after the especially additionalstoring medicine bottle 29 indrug reservoir 3 tops hold inmedicine lattice 9 has pressure, and reduce gradually along with the discharge of granule, although force value and changing value thereof are all little, be influential for the unit weight that enters the granule that holds medicine lattice 9.For constant volume type metering device, the minor variations of unit weight is just enough to affect the measuring accuracy of granule.Thereby, the present embodiment arranges tapervoltage stabilizing cover 4 above lattice wheel seat upper shed 7-1 place, bear all pressure of granule of its top by it, the granule that flows intovoltage stabilizing cover 4 belows keeps constant controlling level, thereby make the granule pressure that entersappearance medicine lattice 9 keep stable, significantly reduce to hold the variation ofmedicine lattice 9 endoparticle agent unit weights, reach the object that improves measuring accuracy, still see Fig. 3.The shape of describedvoltage stabilizing cover 4 is not limited to taper, as long as make lattice wheel seat upper shed 7-1 place hold granule inmedicine lattice 9 directly not bear the pressure of thegranule 11 after the especially additionalstoring medicine bottle 29 indrug reservoir 3 tops, be convenient to again holdmedicine lattice 9 from surrounding's inflow of voltage stabilizing cover 4.Test shows: adopt aftervoltage stabilizing cover 4, the poor ratio of output statistical standard from be fully loaded with single-frame weighing removal period does not adopt the standard deviation of voltage stabilizing cover to reduce more than 30%.

Embodiment 2

As a kind of constant volume type metering device, need the volume of each appearance medicine lattice as far as possible little, can meet the allotment required precision of microdosage, but in the time of heavy dose, have a strong impact on adjustment efficiency, dosage is larger, and efficiency is just lower.For this reason, the present embodiment increases a lattice wheel seat 7 ' on above-described embodiment basis, structuredative wheel seat 7 is identical, the cylindrical lattice wheel chamber 7-3 ' that offers hollow in lattice wheel seat 7 ' along its horizontal direction, arranges great Rong medicine sound of laughing wheel 8 ' in lattice wheel chamber 7-3 ', form a kind of two lattice wheel construction, referring to Figure 10, wherein great Rong medicine lattice 9 ' capacity is the several times of little Rongmedicine lattice 9, and two lattice wheel drives respectively, andlattice wheel 8 and one end of 8 ' are connected by power transmission shaft and driving device respectively.When allotment, the control system of drug sack-filling device will need major part in ingredients amount distribute to great Rong medicine sound of laughing wheel 8 ', fraction is distributed to 8, two lattice wheels of little Rong medicine sound of laughing wheel and is rotated simultaneously, forwards to and needs separately the lattice number that turns.Like this, it is little that each lattice are taken turns the lattice number that need turn, and just can complete allotment task in very short time.For example, prescription needs 23.5 grams of certain medicines, 1.84 grams of the every lattice capacity of great Rong medicine lattice 9 ' in the metering dispensing device that this taste medicine is independently equipped with, 0.13 gram of the every lattice capacity of little Rongmedicine lattice 9, after drug sack-filling device control Computing, instruction lattice actuation makes great Rong medicine sound of laughing wheel turn 12 lattice, little Rong medicine sound of laughing wheel turns 11 lattice, adjustment drug row amount: 1.84 × 12+0.13 × 11=23.51 gram.If great Rong medicine sound of laughing wheel lattice 8 ' one Thursday, little Rong medicine sound of laughingwheel 8 one Zhou Bage, respectively as long as rotate 3 weeks and more than 1 week, and if Quan You little appearance medicine sound of laughingtake turns 8 and turn, just need to rotate 181 lattice, more than 22 weeks, allocate revolution and consuming timely differ very greatly different.

Moreover, the total revolution that reduces lattice wheel has reduced friction number of times, reduces and allocates the time that lasting exposure is made moist that shortened consuming time, is more conducive to further reduce the probability that transports parts locking.

On concrete structure, two lattice wheel can the tandem setting of countershaft ground of axle, as shown in figure 10, now inner chamber is suitably strengthened in the bottom ofdrug reservoir 3, andvoltage stabilizing cover 4 is also deformed into infundibulate thereupon, the lattice wheel upper opening in chamber and the top of drug reservoir are communicated with jointly separately, the lower openings in lattice wheel chamber is communicated with jointly with drug sack-filling device, and all the other some structural elements such as voltage stabilizing cover, sludge groove, driving member, case sensing mark, bottom and resilient stake etc. all can, asembodiment 1, separately not narrated and illustrate.In like manner, two lattice wheels also can be set up in parallel by diaxon abreast, do not repeat and illustrate.

For the ease of kind identification and access addressing, the outer wall ofdrug reservoir 3 also available various known conventional method is set up TM card or IC-card, does not all repeat and illustrates.

Two lattice wheel constructions of this metering dispensing device can increase substantially adjustment efficiency, are also conducive to further reduce the probability that transports parts locking simultaneously.

Embodiment 3

In order to adapt to the unit weight difference of variable grain, fully meet the allotment of 0.5 gram of following microdosage, the structure that the present embodiment adopts is: the appearance medicine lattice of each case described in aforementioned each embodiment are divided into several sections, the appearance medicine lattice that axial location is identical are measure-alike, meaning is the continuous whole face of cylinder for lattice wheel between section and section, block wherein the some sections of mode classifications of holding medicine lattice and change the medicine storage cavity volume of each case with the segmented baffle of changeable, described segmentedbaffle 28 is made up of a perpendicular edge and a horizontal sides, the lower edge of perpendicular edge is concave arc, concave arc radius is taken turns radius corresponding to lattice, dative wheel chamber, both sides two side-to-side anastomosis suitable for reading of perpendicular edge, the perpendicular edge of segmentedbaffle 28 is placed in and holds the intersegmental of medicine lattice, the horizontal sides of segmentedbaffle 28 is blocked the appearance medicine lattice of lattice wheel one end suitable for reading, chamber and below thereof, be screwed in lattice wheel seat 7.For ease of observe and drawing for purpose of brevity, in figure, segmented baffle is transparent effect and does not draw hold-down screw, lower with, referring to Figure 11.Hop count is got more, and the progression of adjusting is thinner.But in practical application, without meticulous, conventionally arrange 2 to 3 sections, be enough to the need of the adjustment that adapts to respectively large and small two-stage unit weight or large, medium and small three grades of unit weight granules.Take the situation of described three grades of adjustings as example: most kinds are medium unit weight, segmentedbaffle 28 is installed and blocks and hold medicine lattice 9-1, open wide two sections and hold medicine lattice; For the kind of the large unit weight of minority, can increase another same segmentedbaffle 28 and block appearance medicine lattice 9-3, open wide one section and hold medicine lattice; For the kind of the little unit weight of minority, segmented baffle is not installed, three sections of appearance medicine lattice all open wide, and separately do not illustrate.

Segmentedbaffle 28 can have various structures, the W shape of the example both sides band wing as shown in figure 12, both sides dative wheel seat upper shed 7-1 two side-to-side anastomosis of W shape, bottom surface is cancave cambered surface, concave arc radius is taken turns radius corresponding to lattice, and both wings are fixed onlattice wheel seat 7 with screw, same, for drawing for purpose of brevity, in figure, do not draw hold-down screw.Do not enumerate.

Deduce it according to said structure: also lattice wheel can be divided into several sections, every section is all the appearance medicine groove that open at two ends, between lattice wheel, folder is with the isometrical cylinder of bright finish, or change and hold the different lattice wheel of medicine lattice volume at lattice wheel intracavity, again or in drug reservoir bottom multiple lattice wheel seats are coaxially set, the lattice wheel that dative wheel chamber is rotatably assorted is set respectively in each lattice wheel seat, on the periphery of lattice wheel, offer respectively the different appearance medicine lattice of volume, between lattice wheel, be connected by same power transmission shaft and a driving device, principle with on be as good as, enumerate no longer one by one and illustrate.

The segmentation of this metering dispensing device is held medicine lattice and is coordinated baffle plate to regulate, can adaptive all kind granule, be also convenient to accurately allocate microdosage.

By the various embodiments described above, this metering dispensing device is difficult for accumulation micropowder, can effectively prevent that granule from making moist, and is difficult for locking, and without disassembly, cleaning, adjustment precision and efficiency greatly improve, and the adaptive all kind granules of energy, is also convenient to accurately allocate microdosage.

Claims (8)

1. granular drug metering dispensing device, comprise drug reservoir (3), it is characterized in that: the bottom of described drug reservoir (3) offers discharging opening (3-2), the bottom of drug reservoir (3) is provided with the lattice wheel seat (7) that at least one and discharging opening (3-2) are sealed and matched, in lattice wheel seat (7) along its level or offer the cylindrical lattice wheel chambeies (7-3) of hollow close to the direction of level, the upper shed (7-1) in lattice wheel chambeies (7-3) and the intracavity inter-connection of drug reservoir (3), the under shed (7-2) in lattice wheel chambeies (7-3) is connected with the outside of drug reservoir (3), in lattice wheel seat (7), be provided with the lattice wheels (8) that dative wheel chamber (7-3) is rotatably assorted, on the periphery of lattice wheels (8), at least offer recessed appearance medicine lattice (9), hold the upper of medicine lattice (9) dative wheel chamber (7-3), under shed (7-1, 7-2) corresponding cooperation, lattice wheels (8) drive and connect with driving device, in the two ends end wall (7-4) in described lattice wheel chambeies (7-3), be respectively arranged with axis hole, lattice wheel (8) two ends are respectively arranged with axle head (22), axle head (22) rotates and is arranged in axis hole, described axis hole end is provided with sludge groove (23), sludge groove (23) leads to the outside of discharging opening (3-2).

2. a kind of granular drug metering dispensing device according to claim 1, is characterized in that: on the periphery of described lattice wheels (8), evenly offer the recessed appearance medicine lattice (9) that some volumes are identical.

3. a kind of granular drug metering dispensing device according to claim 2, is characterized in that: described drug reservoir (3) top inner, that be positioned at lattice wheel seat (7) upper shed (7-1) is provided with voltage stabilizing cover (4).

4. a kind of granular drug metering dispensing device according to claim 3, is characterized in that: the top of described drug reservoir (3) offers charging aperture (3-1).

5. a kind of granular drug metering dispensing device according to claim 4, it is characterized in that: the top of described drug reservoir (3) is provided with the top cover (1) being sealed and matched with charging aperture (3-1), the bottom of described drug reservoir (3) is provided with the bottom (5) being sealed and matched with discharging opening (3-2).

6. according to claim 1, 2, 3, a kind of granular drug metering dispensing device described in 4 or 5, it is characterized in that: described drug reservoir (3) bottom is at least arranged side by side two lattice wheel seat (7) and another lattice wheel seats (7 ') that are sealed and matched with discharging opening (3-2), in two lattice wheel seats (7) and another lattice wheel seat (7 '), offer the cylindrical lattice wheel chambeies (7-3) of hollow and another lattice along its horizontal direction respectively and take turns chamber (7-3 '), in lattice wheel seat (7) and another lattice wheel seat (7 '), be respectively arranged with lattice wheels (8) that dative wheel chamber (7-3) and another lattice wheel chamber (7-3 ') be rotatably assorted and great Rong medicine sound of laughing take turns (8 '), on the periphery of lattice wheels (8) and great Rong medicine sound of laughing wheel (8 '), offer respectively volume different appearance medicine lattice (9) and great Rong medicine lattice (9 '), lattice wheels (8) and great Rong medicine sound of laughing wheel (8 ') is connected by power transmission shaft and driving device respectively.

7. according to claim 1, 2, 3, a kind of granular drug metering dispensing device described in 4 or 5, it is characterized in that: described drug reservoir (3) bottom is coaxially arranged with at least two lattice wheel seat (7) and another lattice wheel seats (7 ') that are sealed and matched with discharging opening (3-2), in two lattice wheel seats (7) and another lattice wheel seat (7 '), offer the cylindrical lattice wheel chambeies (7-3) of hollow and another lattice along its horizontal direction respectively and take turns chamber (7-3 '), in lattice wheel seat (7) and another lattice wheel seat (7 '), be respectively arranged with lattice wheels (8) that dative wheel chamber (7-3) and another lattice wheel chamber (7-3 ') be rotatably assorted and great Rong medicine sound of laughing take turns (8 '), on the periphery of lattice wheels (8) and great Rong medicine sound of laughing wheel (8 '), offer respectively volume different appearance medicine lattice (9) and great Rong medicine lattice (9 '), between lattice wheels (8) and great Rong medicine sound of laughing wheel (8 '), be connected by same power transmission shaft and a driving device.

8. according to a kind of granular drug metering dispensing device described in claim 1,2,3,4 or 5, it is characterized in that: the appearance medicine lattice of described lattice wheel (8) periphery are subsection setup, the appearance medicine lattice that axial location is identical are measure-alike, and segmentation is held medicine lattice top segmented baffle (28) is set.

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