A kind of new liquid-transfering deviceTechnical field
The invention mainly relates to a kind of liquid-transfering device, specifically a kind of can to realize that spacing regulation and pipette are selected newType liquid-transfering device.
Background technology
Liquid-transfering device has the application extremely popularized in biological, chemical field, is mainly used in the processing and analysis of sample.MoveLiquid device typically has two kinds of working methods, and one kind is single-pass configuration, that is, is used alone the liquid of certain volume from oneIndividual position moves to another location, and another is multi-channel structure, and liquid aliquot disposably is assigned into multiple target locations.It is existingThere is a kind of multi-channeled transposition arrangement on the market, its structure is in a row to fix multiple pipettes on a mounting board, in pipettePiston, piston one pipette of correspondence are set, and multiple pistons are realized by same drive mechanism and are synchronized with the movement, the structureSimply, it ensure that reagent adds the accuracy of dosage, but in actual use still with following problem：1st, versatility is low：MoveThe quantity of liquid pipe determines the port number of liquid-transfering device, such as 1 passage, 4 passages, 8 passages, 12 passages, in actual use notThe liquid-transfering device using respective channel number is generally required with passage, should not be used in mixed way, the liquid-transfering device of such as 4 passages actually makesUsed time only uses 1 passage, because the piston in 4 pipettes is to be synchronized with the movement, therefore can cause remaining 3 piston and pipetteInwall produces abrasion, and the precision of liquid-transfering device can be influenceed after long-term use；2nd, spacing is fixed between each pipette, it is impossible to enteredThe corresponding adjustment of row, may be only available for the load sample container of correspondence spacing, versatility is low.
The content of the invention
For the deficiency of the current technology of solution, present invention combination prior art, from practical application, there is provided a kind of new shiftingLiquid device, this liquid-transfering device is simple in construction, highly versatile, can carry out selective control to the actual use port number of liquid-transfering deviceSystem, and do not result in higher precision is still ensured that after the friction of other pistons and liquid relief inside pipe wall, long-term use when in use.
To achieve the above object, technical scheme is as follows：
It is provided with that be provided with slide rail, the slide rail can on a kind of new liquid-transfering device, including installing plate, the installing plateThe sliding block of slip, is provided with lifting support, the installing plate on sliding block and is additionally provided with lifting motor, and the lifting motor leads toCross below screw mandrel, screw driving lifting support lifting, the lifting support and be provided with several electromagnet, the electromagnet passes throughMagnet fastening mechanism is fixed on lifting support, and magnet fastening mechanism is simultaneously available for the spacing adjusted between each electromagnet, instituteState to be provided with several pipettes corresponding with electromagnet position, the pipette below electromagnet and be provided with piston, it is describedTop land sets magnet attraction block that can be attracted with corresponding electromagnet, and the pipette is solid by liquid relief tube fixing mechanismDetermine on a mounting board, liquid relief tube fixing mechanism is simultaneously available for the spacing adjusted between each pipette, in the installing plate and literScale marker is provided with descending branch frame.
The magnet fastening mechanism includes backing plate and the first wing bolt, and strip chute is provided with lifting support, longSeveral slidably lower connecting shafts are provided with bar chute, the lower connecting shaft is fixedly connected with corresponding electromagnet, lower companySpindle top is through strip chute and is fixedly connected with thread spindle, and first wing bolt and upper screw thread axle thread coordinate, instituteBacking plate is stated to be arranged between the first wing bolt and lifting support.
Flexible rubber blanket is provided between the electromagnet and lifting support.
Wire casing through hole, wire of the wire casing through hole for magnet of powering are provided with inside the lower connecting shaft and upper thread spindlePass through.
The strip chute is rectangular groove structure, and the lower connecting shaft is the square shaft of rectangular cross-section.
The liquid relief tube fixing mechanism includes fixed guide plate on a mounting board, is set between the guide plate and installing plateGlade plane space is equipped with, card holder is provided with each pipette, the card holder is stuck in the second butterfly in glade plane space and passing through both sidesShape bolt is fixed.
The guide plate includes transverse slat and two risers, and two risers are arranged on transverse slat both sides and form U-shaped knot with transverse slatStructure, guide plate is fixed on a mounting board by riser, forms free gap after installation between transverse slat and installing plate.
The card holder includes interior plate and outer panel, and interior plate is fixedly connected with pipette, between interior plate and outer panelNeck is formed, when pipette is fixed, the outer panel is located in glade plane space, and the transverse slat is located in neck, the second butterfly spiral shellBolt screws in and held out against the fixation that transverse slat realizes pipette by interior plate.
It can individually be controlled between several electromagnet or electromagnet is divided into some groups of carry out packet controls.
Beneficial effects of the present invention：
1st, the present invention has carried out corresponding improvement on traditional liquid-transfering device so that a liquid-transfering device is that multiple lead to can be achievedThe selectivity in road is used, internal in unnecessary passage when the number of channels set by actual use port number is less than this structurePiston can't produce friction, abrasion with liquid relief inside pipe wall, remain to make liquid-transfering device have higher precision after long-term use, becauseThis present invention has high versatility.
2nd, the present invention drives piston movement by electromagnet, when actual use, only need to be by the corresponding electromagnet of required passageBe powered can the corresponding piston of adhesive move the pipetting function for realizing the passage in pipette, its have it is simple in construction, controlConvenient advantage.
3rd, between each pipette of the invention the tune of line space, can be entered between each electromagnet by simple governor motionIt is whole, it is adaptable to which that the load sample container of different spacing is used, highly versatile, and adjust simple and convenient, it is easy to operate.
Brief description of the drawings
Accompanying drawing 1 is general structure schematic diagram of the present invention；
Accompanying drawing 2 is magnet fastening mechanism of the present invention and liquid relief tube fixing mechanism schematic diagram；
Accompanying drawing 3 is strip sliding groove structure schematic diagram of the present invention；
Accompanying drawing 4 is guide board structure schematic diagram of the present invention；
Accompanying drawing 5 is I schematic enlarged-scale view in accompanying drawing 1.
Label shown in accompanying drawing：1st, installing plate；2nd, slide rail；3rd, screw；4th, screw mandrel；5th, lifting motor；6th, magnet fastening machineStructure；7th, lifting support；8th, electromagnet；9th, guide plate；10th, liquid relief tube fixing mechanism；11st, pipette；12nd, pipetting head；13rd, it is slidingBlock；14th, magnet attraction block；15th, piston；16th, outer panel；17th, neck；18th, interior plate；19th, rubber blanket；20th, lower connecting shaft；21st, strip chute；22nd, backing plate；23rd, the first wing bolt；24th, upper thread spindle；25th, wire casing through hole；26th, wire；27th, between slidingGap；28th, riser；29th, transverse slat；30th, the second wing bolt；31st, card holder.
Embodiment
With reference to the drawings and specific embodiments, the invention will be further described.It should be understood that these embodiments are merely to illustrateThe present invention rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, this areaTechnical staff can make various changes or modifications to the present invention, and these equivalent form of values equally fall within scope defined herein.
As shown in accompanying drawing 1~5, a kind of new liquid-transfering device, including installing plate 1 is provided with slide rail 2 on the installing plate 1,Slidable sliding block 13 is provided with the slide rail 2, is provided with lifting support 7, the installing plate 1 and also sets up on sliding block 13There is lifting motor 5, the lifting motor 5 drives lifting support 7 to lift by screw mandrel 4, screw 3, the lower section of lifting support 7 is setSeveral electromagnet 8 are equipped with, the electromagnet 8 is fixed on lifting support 7 by magnet fastening mechanism 6, magnet fastening mechanism 6Simultaneously available for the spacing adjusted between each electromagnet 8, the lower section of electromagnet 8 is provided with several and the position pair of electromagnet 8Piston 15 is provided with the pipette 11 answered, the pipette 11, the top of piston 15 is set can be with the corresponding phase of electromagnet 8The magnet attraction block 14 of adhesive, the pipette 11 is fixed on installing plate 1 by liquid relief tube fixing mechanism 10, and pipette is fixedAvailable for the spacing adjusted between each pipette 11, quarter is provided with the installing plate 1 and lifting support 7 simultaneously for mechanism 10Scale is known.
The lifting electrode 5 of the present invention drives lifting support 7 to lift, in the lifting process of lifting support 7 with motor magnet 8 togetherLifting.As shown in Figure 1, electromagnet 8 is fixed on lifting support 7 side by side, and each electromagnet 8 passes through the connection control of wire 26 systemSystem, control system is mainly used in controlling the power on/off of electromagnet 8, it is produced or not produce magnetic force.Electromagnet 8 can be according to actual feelingsCondition, selects control mode, each can individually control power on/off by electromagnet 8, also can the multiple packet of electromagnet 8 controls.Electromagnet 8 is justPipette 11 is fixed in lower section, and each pipette 11 and the quantity of electromagnet 8 are corresponding with position, and piston 15 is mobilizable to be arranged on liquid reliefIn pipe 11, when the corresponding electromagnet 8 in the top of piston 15 is powered, the electromagnet 8 produces magnetic force and inhaled by magnet attraction block 14Piston 15 is closed, therefore when lifting support 7 is lifted, the electromagnet 8 can drive the corresponding piston 15 in lower section to be risen in pipette 11Drop, realizes the pipetting function of the pipette 11, and the electromagnet 8 not being powered now does not produce magnetic force therefore can not adhesive piston15, therefore the piston 15 of the lower section of cold electromagnet 8 is failure to actuate.By this way, selectivity is powered to electromagnet 8 and this can be achievedThe channel selectivity of liquid-transfering device is used.As shown in Figure 1, it is 9 channel designs, when only needing to use individual passage, such as makesWhen using center-aisle, only the electromagnet 8 of center-aisle can be powered, and the no power of other electromagnet 8, then only center-aisle workMake, and other passages do not work, when 9 passages are simultaneously in use, all electromagnet 8 are powered.In order to ensure each piston15 is consistent with the degree of wear of pipette 11, is used interchangeably when needing to use less number of channels between each pipette 11.The structure control mode simply, conveniently, can quickly realize the selection of passage.
Meanwhile, magnet fastening mechanism 6 of the invention can be adjusted to the position of electromagnet 8, and liquid relief tube fixing mechanism 10 canThe position of pipette 11 is adjusted, electromagnet 8 and the position of pipette 11 is corresponded to all the time, it is ensured that the stability of connection and each shiftingThe synchronism moved between liquid pipe 11.And the spacing of pipette 11 can be adjusted according to actual conditions, highly versatile.
The magnet fastening mechanism 6 of the present invention is easy to adjust, and electromagnet 8 is reliable and stable after fixing, and it is real that it passes through following structureIt is existing：Magnet fastening mechanism 6 includes the wing bolt 23 of backing plate 22 and first, and strip chute 21, strip are provided with lifting support 7Several slidably lower connecting shafts 20 are provided with chute 21, the lower connecting shaft 20 is fixedly connected with corresponding electromagnet 8,The lower top of connecting shaft 20 is through strip chute 21 and is fixedly connected with thread spindle 24, first wing bolt 23 and upper thread spindle24 screw threads coordinate, and the backing plate 22 is arranged between the first wing bolt 23 and lifting support 7.Shown in accompanying drawing 2,3, lifting support7 be that magnet fastening mechanism 6 is set on L-type structure, horizontal plane, and operation is easy to using wing bolt structure, when unclamping the first butterflyDuring bolt 3, lower connecting shaft 20 can be made to slide in the strip chute 21, lower connecting shaft 20 is moved with motor magnet 8, when tightening firstDuring wing bolt 23, the first wing bolt 23 compresses the fixation that backing plate 22 realizes the position of electromagnet 8.While in order to ensure electromagnet8 fixings fixed, are provided with flexible rubber blanket 19 between the electromagnet 8 and lifting support 7.
In order to which its lengthwise position does not change when ensureing that electromagnet 8 is adjusted, strip chute 21 of the invention is set to squareShape slot structure, lower connecting shaft 20 is set to square axle structure, it is moved horizontally in strip chute 21.
Meanwhile, the setting of the wire 26 of electromagnet 8 for convenience, the present invention is descended to be all provided with inside connecting shaft 20 and upper thread spindle 24Wire casing through hole 25 is equipped with, wire casing through hole 25 passes through for the wire 26 for magnet 8 of powering, and the structure facilitates the arrangement of wire 26.
As shown in accompanying drawing 1,2,4,5, liquid relief tube fixing mechanism 10 of the invention can pipette 11 be fixed and position is adjustedWhole, easy to adjust quick again without by aid, it is realized by following structure：Liquid relief tube fixing mechanism 10 includesThe guide plate 9 on installing plate 1 is fixed on, glade plane space 27 is provided between guide plate 9 and installing plate 1, on each pipette 11Card holder 31 is provided with, card holder 31 is stuck in glade plane space 27 and fixed by the second wing bolt 30 of both sides, wherein guide plate 9Including transverse slat 29 and two risers 28, two risers 28 are arranged on the both sides of transverse slat 29 and form U-shape structure, guide plate with transverse slat 299 are fixed on installing plate 1 by riser 28, form free gap 27 after installation between transverse slat 29 and installing plate 1, and card holder 31 includesInterior plate 18 and outer panel 16, interior plate 18 are fixedly connected with pipette 11, and neck is formed between interior plate 18 and outer panel 1617, when pipette 11 is fixed, outer panel 16 is located in glade plane space 27, and transverse slat 29 is located in neck 17, the second wing bolt 30The fixation that transverse slat 29 realizes pipette 11 is screwed in and held out against by interior plate 18.Clip 31 and pipette 11 may be configured as integral typeStructure, is directly caught in glade plane space 27 by the top of free gap 27, when screwing the second wing bolt 30, the second wing boltThe fixation that transverse slat 29 realizes pipette 11 is held out against, when unclamping the second wing bolt 30, clip 31 can be transported in glade plane space 27Dynamic to carry out position adjustment, electromagnet 8 and the position of pipette 11 can be demarcated by corresponding scale marker.