The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail, the description of this part only is exemplary and explanatory, any restriction should not arranged to the protection domain of the utility model.
As depicted in figs. 1 and 2, this sample introduction sampler comprises loading attachment, and the rack for test tube that is used to deposit the test tube that the fills sample blood luggage of going forward side by side carries; Pull device 4, be used for the test tube that the sample introduction sampler is deposited is delivered to evenly mixing device; Evenly mixing device 5 is used for invisible spectro sample blood is mixed; Puncture sampling apparatus 6 is used to analyze the haemocyte composition; Discharge mechanism 7 is used for the rack for test tube of accomplishing the sample introduction sampling is unloaded.
The concrete course of work of above-mentioned sample introduction sampler is: the rack for test tube 3 in the loading attachment; Under the effect that pulls device 4, deliver in the evenly mixing device 5; By pulling device 4 test tube support of carrying sample blood is delivered to puncture sampling apparatus 6 again after process evenly mixing device 5 mixes, sample; In the sample analysis process, the rack for test tube 3 that is carried gets into once more and carries out repeatedly mixing repeatedly in the evenly mixing device 5, makes mixing more abundant; Test tube was pushed out and is discharged in the loading dish 8 of discharge mechanism 7 after ultimate analysis detected and finishes.
Like Fig. 3 and shown in Figure 4, the rack for test tube 3 in the present embodiment can hold a plurality of test tubes 26, and blood sample is contained in the test tube 26, and uses plug closes, and distance is identical between the adjacent test tube 26.
Rack for test tube 3 in the present embodiment comprises base plate 30, sidewall 31 and annular cover 32, and sidewall 31 is vertically set on the base plate 30, forms the main support structure of whole rack for test tube 3; Annular cover 32 is arranged on the sidewall 31, and annular cover 32 or annular cover 32 form the space that holds test tube 26 with sidewall 31, and preferred lateral arrangement has ten annular covers 32 in the present embodiment, is used to hold ten test tubes 26; In order to prevent that test tube 26 from shaking, the annular that vertically all has additional of each annular cover 32 overlaps 32 in this rack for test tube 3, has predeterminable range between the annular cover 32 that vertically is provided with, and makes that the test tube 26 that is positioned at annular cover 32 is stressed more reasonable.
Wherein, in the above-mentioned rack for test tube 3, annular cover 32 can be fixed on the sidewall 31 through frame for movement, for example adopts screw to be fixed on the sidewall 31; Can also be set to integral structure, be integrally formed the formula structure through injection moulding particularly.
Install for ease, sidewall 31 tops are provided with the groove 34 identical with test tube 26 spacings, and horizontal direction is provided with step 32.On the base plate 30 of rack for test tube 3, be provided with cavernous structure; To make things convenient for the clamping of follow up device; This cavernous structure is the square opening structure particularly, and this square opening comprises sleeve pipe and this sleeve pipe is fixed on the ribs on the base plate 30 that ribs is that middle mind-set is dispersed layout all around with sleeve pipe; Not only guarantee the intensity of sleeve pipe, also saved raw material to greatest extent.Above-mentioned base plate 30 can be set to integral structure with cavernous structure, is processed into integral structure through injection moulding particularly.
Loading attachment among the utility model embodiment comprises loading dish 1 and pushes away kind piece 2, and wherein, loading dish 1 can hold rack for test tube 3, and rack for test tube 3 is slidably disposed on the loading dish 1; Push away the end that kind piece 2 is arranged on loading dish 1, and can promote rack for test tube 3 and move to direction away from loading dish 1 other end.
Particularly, the both sides of loading dish 1 are provided with guide post, push away kind piece 2 and pass this guide post and can carry out longitudinal sliding motion along guide post.When above-mentioned loading dish 1 every side was provided with a guide post, loading dish 1 was provided with clamping part near the edge of loading dish 1 loading surface and away from the edge of loading dish 1 loading surface, and this pushes away the acting in conjunction lower slider of kind piece at clamping part and guide post; When above-mentioned loading dish 1 every side was provided with at least two guide posts, every guide post laterally arranged, this moment this push away kind piece 2 can be smoothly under the effect of guide post promotion rack for test tube 3 move to predetermined direction.
Rack for test tube 3 is to push away under the impetus of kind piece 2 to accomplish vertically moving on the loading dish 1, when rack for test tube 3 when the top of loading dish 1 moves to end, rack for test tube 3 gets into cross tracks and also under the effect that pulls device 4, accomplishes laterally mobile.
The structure of discharge mechanism is identical with loading attachment, and the two difference is a loading place that is positioned at whole sample introduction sampler, unloading place that is positioned at said sample introduction sampler.
Like Fig. 5 to the device 4 that pulls shown in Figure 9; This pulls device 4 can be the rack and pinion drive mechanism that motor 36 drives; Also can be the cam mechanism that motor 36 drives, under the driving of motor 36, under rack and pinion drive mechanism or cam mechanism transmission; The portion of pulling that all can realize pulling device 4 is rectilinear motion up and down, and this portion of pulling is specially handgrip.Handgrip moves upward, and when arriving top limit position, handgrip gos deep in the cavernous structure of rack for test tube 3 bottoms, thereby the whole device 4 that pulls moves on predetermined track along the laterally mobile drive rack for test tube 3 of cross slide way; When handgrip moved downward, handgrip separated with rack for test tube 3, wholely pulled in predetermined track, moving that device 4 just can be independent.
At this is the example narration with the rack-and-pinion transmission only, and this pulls device 4 and comprises the handgrip 39 and the driving mechanism that can move up and down, and drive mechanism handgrip 39 moves up and down.This driving mechanism comprises the holder 42 that can be sleeved on the cross track particularly, through fixed cap 44 motor 36 is installed on this holder 42, is fixed with gear 37 on the output shaft of motor 36; Be fixed on the guide pad 41 on the holder 42; Slidably be arranged on the slide block on the guide pad 41, the tooth bar 38 that this slide block is provided with handgrip 39 and matches with gear 37, wherein, handgrip 39 is provided with cylindrical hole 54, through the pin that is installed on the cylindrical hole 54 handgrip is fixed on the slide block; With slide block is added the clamping plate 48 that are held in guide pad 41.
When pulling device 4 arrival precalculated positions, by 37 rotations of motor 36 driven gears, the rotation of gear 37 makes tooth bar 38 move upward along tooth bar 38 guide pads 41.In tooth bar 38 motion processes, a side of tooth bar 38 no profiles of tooth abuts against on the madial wall 31 of guide pad 41, moves up and down along guide pad 41.The cylinder 52 that one convexity is arranged on the side of tooth bar 38 near guide pad 41; Cylinder 52 is positioned at the strip groove 53 of guide pad 41 centres in the process that moves up and down; Play the effect of mechanical position limitation, this cylinder 52 can be the entity cylindrical pins, also can be the pulley that can freely rotate.
When gear 37 arrives certain altitudes, be fixed on tooth bar 38 on the slide block and drive in the cavernous structure that handgrips 39 insert on rack for test tubes 3 base plates 30, like this, rack for test tube 3 pulls device 4 and in the transverse movement process, can drive rack for test tube 3 and move simultaneously.When this device need not to drive rack for test tube 3 motions, motor 36 backward rotation certain angles, tooth bar 38 moves downward backhaul, the cavernous structure that handgrip 39 breaks away from rack for test tube 3 bottoms.
This holder 42 is provided with the through hole 43 that matches with cross slide way, wherein, reduces the wearing and tearing of holder 42, and the two ends of through hole 43 are respectively arranged with fairlead 50, and this fairlead 50 is fixed through mounting flange 49.
In order better to hold the running time of handgrip 39; This pulls and also is provided with photoelectric sensor 45 on the device 4, wherein, is fixed with the sheet metal 51 that is used to start photoelectric sensor 45 on the slide block; When handgrip 39 moves to predeterminated position; Sheet metal 51 contacts with photoelectric sensor 45, starts photoelectric sensor 45 operations, this moment photoelectric sensor 45 CD-ROM drive motor 36 antikinesises that transmit control signal.
The opposite side of tooth bar 38 is provided with a sheet metal 51, and sheet metal 51 also moves up and down thereupon in tooth bar 38 motion processes, and sheet metal 51 triggers the photoelectric sensor 45 that is positioned at front end when arriving the precalculated position, thus the duty of control motor 36.
Whole rack for test tube 3 pulls device 44 and is driven by main frame motor 36, and band (not outpouring) is fastened on the clamping plate 48 synchronously, through hole 43 and cross slide way (not outpouring) matched in clearance, make rack for test tube 3 pull device 4 in the drive lower edge of motor 36 cross slide way do transverse movement.
On tooth bar 38, fixed a roller 40, roller 40 pulls in the device 4 transverse movement processes at rack for test tube 3 between rack for test tube 3 cross slide waies, and roller rolls along rack for test tube 3 cross slide way inner surfaces, thereby plays guide effect.Whole like this rack for test tube 3 pulls device 4 and in motion process, is led by cross slide way and roller 40, and avoiding whole rack for test tube 3 to pull device 4 is to vacillate now to the left, now to the right in motion.
After pulling device 4 rack for test tube 3 being transported to evenly mixing device 5, evenly mixing device 5 shakes rack for test tube 3, thereby shakes the test tube of placing on the rack for test tube 3 26.
Like Figure 10 and shown in Figure 11, this evenly mixing device 5 comprises the roller 9 that can rotate 360 °, roller 10 and the cylinder 11 that carries rack for test tube 3, and wherein, cylinder 11 is fixed together with roller 9 and roller 10, and cylinder 11 inside have the space that holds rack for test tube 3; Roller 9 rotates under the driving action of motor 13 with roller 10.Rack for test tube 3 is transported to cylinder 11 inside under the effect that pulls device 4, and is fixed on cylinder 11 inside, and evenly mixing device is fixed on said cross slide way top through bracing frame.
The course of work of evenly mixing device 5 in the middle of below will specifying.
Preferred in the present embodiment, motor 13 rotates through band transmission driving rolls 9 and roller 10, thereby realizes whole row's test tube 26 same time Rotate 180s ° or 360 °, thereby makes the abundant mixing of sample.After mixing finished, optoelectronic switch 19 sent signal to motor 13, and motor 13 stops operating.
In order to optimize above-mentioned evenly mixing device 5; Extremely shown in Figure 13 like Figure 12; Also be provided with brake apparatus 14 on the evenly mixing device 5 in the present embodiment, treat behind rack for test tube 3 Rotate 180s ° or 360 ° in the evenly mixing device 5 the just brake apparatus 14 of braking, 14 pairs of whole cylinders 11 of this brake apparatus carry out mechanical braking.
Be provided with optoelectronic switch 19 and brake apparatus 14 in cylinder 11 upper ends.This brake apparatus 14 comprises motor 16, fixed structure 17, screw rod 18, voussoir 21 and block 22; Wherein, motor 13 is fixed on the fixed structure 17, and the circular hole that screw rod 18 1 ends pass on the fixed structure 17 links to each other with motor 13; Voussoir 21 is set in the threads engaged on its inner surface and screw rod 18 on the screw rod 18; 18 rotation drive voussoirs 21 move downward thereby motor 13 drives screw rod, and fixed structure 17 bottoms have the groove 34 that holds voussoir 21, when voussoir 21 does not move downward; Just be contained in groove 34 the insides of this fixed structure 17, block 22 is complementary with the groove 34 of voussoir 21.Whole brake apparatus 14 is fixed on the connecting plate 171 on the bracing frame that evenly mixing device through 17 times end peripheries of fixed structure and fixes, and this connecting plate 171 is a hollow, and middle hole can hold the motion of voussoir about in the of 21.Block 22 is fixed on the cylinder 11 of evenly mixing device 5, and through block 22 is braked, thereby index drum 11 rotates.
After mixing was accomplished, shell fragment 20 triggered optoelectronic switch 19, and motor 16 quits work; Motor 16 is downward through screw rod 18 drive voussoirs 21 simultaneously; Block 22 inserts in the voussoirs 21, plays mechanical braking, breaks through phenomenon to prevent because rotator inertia lags behind with photoelectric sensor or inefficacy causes.
In order further to optimize above-mentioned evenly mixing device 5, to shown in Figure 16, also be provided with stop device 15 on the evenly mixing device 5 in the present embodiment like Figure 14; As shown in the figure, this stop device 15 comprises spring 27, fixed structure 25, syndeton 24 and rolling bearing 23; Wherein, Syndeton 24 upper ends are provided with the shrinkage pool that a diameter matches with spring 27 and are used to hold spring 27, spring 27 wherein one section be placed in the shrinkage pool, one section is exposed outside shrinkage pool; Syndeton 24 is fixed in the installing hole 28 of fixed structure 25, and the lower surface that the upper surface of the spring 27 on it withstands on the upper end of fixed structure 25 also produces certain elasticity tension through the roof pressure of this face; Fixed structure 25 is fixed on cylinder 11 sidewalls 31; Syndeton 24 lower ends extend to form the axle that matches with rolling bearing 23 forward, and said rolling bearing 23 is set on this axle, spool front end nut be set get off to prevent axis of rolling landing from the axle.
Cylinder 11 is fixed between two rollers 9 and the roller 10, the positioning guiding structure 29 that is complementary with rack for test tube 3 sidewalls 31 steps 32 that is provided with a bar shaped in the cylinder 11, and the base plate 30 of rack for test tube 33, sidewall 31 and step 32 lean motion in cylinder 11.After rack for test tube 33 and the test tube that carried 26 get into cylinders 11, by stop device 15 rack for test tube 3 is positioned in the cylinder 11, in case rack for test tube 3 is subjected to displacement in cylinder 11 in blending process.Motor 16 drives belt wheel 12 and roller 9 rotates with roller 10, thereby makes that the whole test tube 26 of ranking on rack for test tube 33 carries out 360 ° of rotations.
Below will specify stop device 15 courses of work.
Rolling bearing 23 is stuck in the groove 34 of rack for test tube 3, and when pulling device 4 promotion rack for test tubes 3, rolling bearing 23 is crossed rack for test tube 3 grooves 34 and lifted, and this moment, stop device 15 interior springs 27 compressed, and rack for test tube 3 passes through smoothly.After reaching correct position; Pull laterally strength not of 4 pairs of rack for test tubes 3 of device; At this moment rolling bearing 23 is stuck in the groove 34 on the rack for test tube 3 just; Make rack for test tube 3 horizontal freely-movables be obstructed, and rack for test tube 3 closely leans in cylinder 11 bottoms under the downward effect of spring 27, rack for test tube 3 can not squint in cylinder 11 in cylinder 11 rotary courses.
In addition, be provided with microswitch, all be positioned at cylinder 11 inside to guarantee whole rack for test tube 3 and all test tubes 26 in the both sides of cylinder 11.The rolling bearing 23 of stop device 15 is stuck in the groove 34 of rack for test tube 3; Promote rack for test tube 3, rolling bearing 23 is crossed rack for test tube 3 grooves 34 and is lifted, and this moment, stop device 15 interior springs 27 compressed; Rack for test tube 3 passes through smoothly; Rack for test tube 3 does not laterally stress after reaching correct position, and rolling bearing 23 is stuck in the groove 34 just, makes rack for test tube 3 horizontal freely-movables be obstructed; And rack for test tube 3 closely leans in cylinder 11 bottoms under the effect of spring 27, and rack for test tube 3 can not squint in cylinder 11 in cylinder 11 rotary courses.