CN201389463Y - Electronic pipette with smooth transmission - Google Patents

Electronic pipette with smooth transmission Download PDF

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Publication number
CN201389463Y
CN201389463Y CN200920055588U CN200920055588U CN201389463Y CN 201389463 Y CN201389463 Y CN 201389463Y CN 200920055588 U CN200920055588 U CN 200920055588U CN 200920055588 U CN200920055588 U CN 200920055588U CN 201389463 Y CN201389463 Y CN 201389463Y
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CN
China
Prior art keywords
sleeve
ferrule
electronic pipette
piston rod
outer
Prior art date
Application number
CN200920055588U
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Chinese (zh)
Inventor
李美芝
罗耿荣
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罗耿荣
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Priority to CN200920055588U priority Critical patent/CN201389463Y/en
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Publication of CN201389463Y publication Critical patent/CN201389463Y/en

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Abstract

The utility model relates to the technical field of pipettes, in particular to an electronic pipette with smooth transmission. The electronic pipette comprises an upper housing, a linear driving motor fixed in the upper housing, a sleeve and a piston rod which can slide in the sleeve, wherein the sleeve is detachably connected with the upper housing, an inner ferrule is fixedly arranged at the output end of the linear driving motor, the top of the piston rod is clamped in the inner ferrule, and the piston rod is connected with the linear driving motor in a rigid manner through the inner ferrule. The structure is firm, the transmission is relatively smooth and does not vibrate accordingly during the moving process, the control precision of the pipette is better, the clamping structure is more convenient to assemble and disassemble, an outer ferrule is fixedly arranged on the inner side of the bottom of the upper housing, the sleeve is clamped in the outer ferrule, and the clamping structure is firmer and more convenient to assemble and disassemble.

Description

传动平稳的电子移液器技术领域:本实用新型涉及移液仪器技术领域,特别涉及传动平稳的电子移液器。 Smooth transmission electronic pipette Technical Field: The present invention relates to a pipetting instrument technology, and particularly relates to stable transmission electronic pipette. 背景技术:在医疗、药物、基因和蛋白质研究、生物研究、药物开发实验室以及其它生物技术应用领域中,经常需要利用移液器在各种实验室操作规程中来操纵实验室样品,其利用移液器将一定体积的液体吸入移液器内,然后将液体分配成一个或多个分配体积。 Background: In medical, pharmaceutical, genetic and protein research, biological research, drug development laboratories, and other biotechnology applications, often need to use the pipette in a variety of laboratory procedures to manipulate the laboratory sample, utilizing pipetting a volume of liquid drawn into the pipette, and then dispenses the liquid into one or more distribution volume. 现有的移液器包括有上壳体、固定在上壳体内的直线驱动电机、 套筒、可在套筒内滑动的活塞杆,套筒与上壳体的底部可拆卸连接, 直线驱动电机推动活塞杆上下运动致使液体吸入所述套筒或从所述套筒排出,为了达到吸入或排出液体的目的,在所述套筒和活塞之间设有密封圈,以便在它们之间形成密封。 The pipette comprises a conventional upper case is fixed on a straight line in the drive motor housing, the sleeve, slidable piston within the sleeve, the sleeve and the housing bottom detachably connected to the linear drive motor pushing rod up and down movement of the sleeve causes the liquid sucked or discharged from the sleeve, in order to achieve the purpose of the suction or discharge liquid, a sealing ring between the sleeve and the piston, so as to form a seal therebetween . 这种移液器的直线驱动电机输出端是通过弹簧连接活塞杆的顶部,直线驱动电机通过弹簧间接驱动活塞杆上下运动,弹簧为柔性传动零件,运动过程不平稳, 运动过程中会伴随着振动,影响移液器的控制精度。 Such pipettes linear drive motor output is connected to the top of the piston rod by a spring, the linear drive motor indirectly driving the piston rod by a spring vertical movement, the spring is a flexible transmission member, jerky movement, the movement will be accompanied by a vibration control precision pipette influence. 实用新型内容:本实用新型的目的是针对现有技术的不足而提供一种活塞杆与直线驱动电机刚性连接的传动平稳的电子移液器。 SUMMARY: The object of the present invention for the deficiencies of the prior art and to provide a smooth transmission electronic pipette with one kind of linear drive piston rod is rigidly connected to the motor. 为实现上述目的,本实用新型采用如下技术方案: 传动平稳的电子移液器,它包括有上壳体、固定在上壳体内的直线驱动电机、套筒、可在套筒内滑动的活塞杆,套筒与上壳体可拆卸连接,直线驱动电机的输出端固定有内卡套,活塞杆的顶部卡接在内卡套中。 To achieve the above object, the present invention adopts the following technical solution: a smooth transmission electronic pipette, which comprises an upper housing secured on a straight line in the drive motor housing, the sleeve, a piston rod slidable within the sleeve the sleeve and the upper housing detachably connected, the output of the linear drive motor is fixed to the ferrule, the piston rod is connected to the inner top of the card in the card holder. 所述活塞杆的顶部凸设有凸卡部,内卡套底部的内侧凸设有内卡钩,活塞杆的凸卡部通过内卡钩卡接在内卡套中。 The top portion of the piston rod provided with a convex engaging portion, the inner side of the bottom of the ferrule is provided with hooks, projections engaging portion of the piston rod through the snap hooks in the inner ferrule. 所述活塞杆的凸卡部为锥形结构。 Card portion of the piston rod projecting tapered structure. 所述上壳体底部的内侧固定有外卡套,套筒卡接在外卡套中。 Inside the housing is fixed on the bottom of an outer ferrule, ferrule sleeves are attached to the outer card. 所述外卡套底部的内侧凸设有弹性卡钩,套筒的外表面开设有环形卡槽,外卡套的弹性卡钩卡接在套筒的环形卡槽中。 The inner side of the bottom of the outer ferrule is provided with an elastic hook, the outer surface of the sleeve defines an annular slot, the ferrule outer elastic hook is locked to the annular sleeve slot. 所述外卡套顶部的内侧也凸设有弹性卡钩。 The inside of the top of the outer ferrule is also provided with an elastic hook projections. 所述外卡套中部的内侧也凸设有弹性卡钩,套筒的外表面与该弹性卡钩对应的位置也开设有环形卡槽。 Inside the middle outer ferrule is also provided with an elastic hook projections, the outer surface of the sleeve and corresponding to the position of the elastic hook also defines an annular slot. 本实用新型有益效果为:本实用新型包括有上壳体、固定在上壳体内的直线驱动电机、套筒、可在套筒内滑动的活塞杆,套筒与上壳体可拆卸连接,直线驱动电机的输出端固定有内卡套,活塞杆的顶部卡接在内卡套中,活塞杆通过内卡套与直线驱动电机刚性连接,结构稳固,运动过程中传动平稳,不会伴随着振动,移液器的控制精度较好,并且这种卡接结构拆装比较方便。 Beneficial effects of the present invention: The present invention comprises a housing, a linear drive motor, the inner sleeve is fixed in the housing, slidable piston within the sleeve, the sleeve and detachably connected to the housing, a straight line the output of the driving motor is fixed to the ferrule, the ferrule contact the inner top of the card in the piston rod, the piston rod is rigidly connected to a drive motor through the ferrule and the straight line, structural stability, smooth motion during transmission, without concomitant vibration , better control precision pipette, and this engagement structure disassembly more convenient. 另外,上壳体底部的内侧固定有外卡套,套筒卡接在外卡套中, 这种卡接结构较稳固、拆装比较方便。 Further, on the inner bottom of the housing is fixed to the outer ferrule, the ferrule outer sleeve snap, this engaging structure more robust, more convenient disassembly. 图1是本实用新型的结构剖面图; 图2是本实用新型另一实施方式的结构剖面图。 FIG 1 is a cross-sectional structure of FIG invention present; FIG. 2 is a cross-sectional view of another embodiment of the invention. 具体实施方式:下面结合附图对本实用新型作进一步的说明,见图1,传动平稳的电子移液器,它包括有上壳体1、固定在上壳体1内的直线驱动电机2、套筒3、可在套筒3内滑动的活塞杆4,套筒3与上壳体1可拆卸连接,直线驱动电机2的输出端固定有内卡套5,活塞杆4的顶部卡接在内卡套5中,活塞杆4通过内卡套5与直线驱动电机2刚性连接,结构稳固,运动过程中传动平稳,不会伴随着振动,移液器的控制精度较好,并且这种卡接结构拆装比较方便。 DETAILED DESCRIPTION: DRAWINGS further explanation of the invention as shown in Figure 1, the smooth transmission electronic pipette, which comprises an upper housing 1, fixed to the housing in a linear motor drive 2, sets cylinder 3, slidable within the sleeve 3 the piston rod 4, the sleeve 3 is detachably connected to the upper housing 1, the output of the linear drive motor 2 is fixed to the ferrule 5, the piston rod 4 connected to the top of the card, including ferrule 5, the piston rod 4 is rigidly connected to the drive motor 2 through the inner ferrule 5 with a straight line, structural stability, smooth motion during transmission, without concomitant vibration, better control of precision pipette, and such snap structure disassembly more convenient. 其中,活塞杆4的顶部凸设有凸卡部41,内卡套5底部的内侧凸设有内卡钩51,使内卡套5内腔形成空置凸卡部41的卡槽空腔42,活塞杆4的凸卡部41通过内卡钩51卡接在内卡套5中,内卡钩51将凸卡部41卡紧在内卡套5的卡槽空腔42中。 Wherein the top of the piston rod 4 protruding portion 41 is provided with projections cards, the inner side of the bottom inner ferrule 5 is provided with the hook 51, the inner lumen of the ferrule 5 is formed the vacant cavity 42 projecting card slot 41, a piston rod projecting portion 41 of the card 5 in the ferrule, the protrusion 51 within the hook engaging portion 41 clamp the inner ferrule within the slot cavity 5 by a snap hook 51 in the inner 42. 活塞杆4的凸卡部41为锥形结构,锥形结构的凸卡部41卡进内卡套5内比较容易,而出来比较难,需要用较大的力,这样装配比较稳固。 Projecting engaging portion 41 of the piston rod 4 is tapered structure, the tapered configuration of the card projections 41 snap into the inner ferrule 5 is relatively easy, the more difficult it requires a large force, so that the assembly relatively stable. 上壳体1底部的内侧固定有外卡套6,套筒3卡接在外卡套6 中,这种卡接结构较稳固、拆装比较方便。 The inner bottom of the housing 1 is fixed to the outer ferrule 6, the outer sleeve 3 snap ferrule 6, which engaging structure more robust, more convenient disassembly. 其中,外卡套6底部的内侧凸设有弹性卡钩61,套筒3的外表面开设有环形卡槽31,外卡套6的弹性卡钩61卡接在套筒3的环形卡槽31中。 Wherein the inner side 6 is provided at the bottom of the outer ferrule elastic hook 61, the outer surface of the sleeve 3 defines an annular slot 31, the outer ferrule 61 elastic hook 6 is connected to the card slot 31 in the annular sleeve 3 in. 另外,外卡套6顶部的内侧也凸设有弹性卡钩61,用于卡紧套筒3的顶部,外卡套6顶部和底部的弹性卡钩61将套筒3紧紧卡接在外卡套6中,结构稳固,但拆装也方便。 Further, the inner top outer ferrule 6 is also provided with an elastic hook projections 61 for the top clamping sleeve 3, the elastic hook 616 of the top and bottom of the outer ferrule sleeve attached to the outer card 3 firmly stuck sleeve 6, the structural stability, but also convenient disassembly. 见图2,作为本实用新型的另一实施方式,外卡套6中部的内侧也凸设有弹性卡钩61,套筒3的外表面与该弹性卡钩61对应的位置也开设有环形卡槽31,这种结构更稳固。 Figure 2, as another embodiment of the present invention embodiment, the inner middle of the outer ferrule 6 is also provided with an elastic hook projection 61, the outer surface of the sleeve 3 in a position corresponding to the elastic hook 61 also defines an annular card the groove 31, this structure is more stable. 以上所述仅是本实用新型的较佳实施方式,故凡依本实用新型专利申请范围所述的构造、特征及原理所做的等效变化或修饰,均包括于本实用新型专利申请范围内。 The above are only the preferred embodiment of the present invention embodiment, where it is under this structure, characteristics and principles of the utility patent application range of equivalent variations or modifications made are included within the scope of the application of the present invention in the patent .

Claims (7)

1、传动平稳的电子移液器,它包括有上壳体(1)、固定在上壳体(1)内的直线驱动电机(2)、套筒(3)、可在套筒(3)内滑动的活塞杆(4),套筒(3)与上壳体(1)可拆卸连接,其特征在于:所述直线驱动电机(2)的输出端固定有内卡套(5),活塞杆(4)的顶部卡接在内卡套(5)中。 1, a smooth transmission electronic pipette, which comprises an upper housing (1), fixed to the housing in a straight line (1) driving motor (2), the sleeve (3), the sleeve may be (3) the sliding rod (4), the sleeve (3) is detachably connected to the housing (1), characterized in that: the output of said linear drive motor (2) is fixed to the ferrule (5), the piston card top bar (4) is connected to the inner ferrule (5).
2、 根据权利要求1所述的传动平稳的电子移液器,其特征在于: 所述活塞杆(4)的顶部凸设有凸卡部(41),内卡套(5)底部的内侧凸设有内卡钩(51),活塞杆(4)的凸卡部(41)通过内卡钩(51) 卡接在内卡套(5)中。 2, according to claim smooth transmission electronic pipette of claim 1, wherein: the top of the piston rod (4) is provided with projections projecting portion card (41), the inner side (5) at the bottom of the ferrule with the hook (51), a piston rod (4) of the card projecting portion (41) by the hook (51) snap inner ferrule (5).
3、 根据权利要求2所述的传动平稳的电子移液器,其特征在于: 所述活塞杆(4)的凸卡部(41)为锥形结构。 3, according to claim smooth transmission electronic pipette of claim 2, wherein: said piston rod (4) of the card projecting portion (41) of tapered configuration.
4、 根据权利要求1-3任意一项所述的传动平稳的电子移液器, 其特征在于:所述上壳体(1)底部的内侧固定有外卡套(6),套筒(3)卡接在外卡套(6)中。 4. The transmission of claim stationary electronic pipette of any one of claims 1-3, characterized in that: said upper housing (1) fixed to the inside bottom of the outer ferrule (6), the sleeve (3 ) card attached to the outer ferrule (6).
5、 根据权利要求4所述的传动平稳的电子移液器,其特征在于: 所述外卡套(6)底部的内侧凸设有弹性卡钩(61),套筒(3)的外表面开设有环形卡槽(31),外卡套(6)的弹性卡钩(61)卡接在套筒(3)的环形卡槽(31)中。 5, the smooth transmission according to claim 4, wherein the electronic pipette, wherein: said inner side (6) is provided at the bottom of the outer ferrule elastic hook (61), the sleeve (3) the outer surface defines an annular slot (31), an outer ferrule (6) of the elastic hook (61) is locked to the sleeve (3) an annular slot (31).
6、 根据权利要求5所述的传动平稳的电子移液器,其特征在于: 所述外卡套(6)顶部的内侧也凸设有弹性卡钩(61)。 6, a smooth transmission according to claim 5, wherein the electronic pipette, characterized in that: said outer ferrule (6) inside of the top is also provided with a resilient hook projections (61).
7、根据权利要求5或6所述的传动平稳的电子移液器,其特征在于:所述外卡套(6)中部的内侧也凸设有弹性卡钩(61),套筒(3)的外表面与该弹性卡钩(61)对应的位置也开设有环形卡槽(31)。 7, smooth transmission according to claim 5 or electronic pipette 6, wherein: said outer ferrule (6) also protrudes from the inner side of the middle of the elastic hook (61), the sleeve (3) the outer surface of the elastic hook (61) also defines a position corresponding to the annular slot (31).
CN200920055588U 2009-04-28 2009-04-28 Electronic pipette with smooth transmission CN201389463Y (en)

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CN200920055588U CN201389463Y (en) 2009-04-28 2009-04-28 Electronic pipette with smooth transmission

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103638998A (en) * 2013-12-05 2014-03-19 罗耿荣 Rotary type auxiliary aspirator
CN106906620A (en) * 2015-12-22 2017-06-30 青岛海尔洗衣机有限公司 Water draining control mechanism and washing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103638998A (en) * 2013-12-05 2014-03-19 罗耿荣 Rotary type auxiliary aspirator
CN103638998B (en) * 2013-12-05 2015-08-19 罗耿荣 Rotary auxiliary Sipper
CN106906620A (en) * 2015-12-22 2017-06-30 青岛海尔洗衣机有限公司 Water draining control mechanism and washing machine

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