CN107649227A - A kind of permanent magnetic piston pipette - Google Patents

Abstract

Translated fromChinese

本发明公开了一种永磁活塞移液管，包括管体，所述管体包括尖头的吸取端和平头的末端，所述管体表面设有刻度，还包括活塞和调节环，所述活塞包括主体和前部，所述主体呈圆柱状，其外径与管体的内径相适配，所述前部的形状与管体的吸取端的内部轮廓相适配，所述调节环套接于管体外，所述调节环内壁与活塞之间通过永磁体实现联动。该永磁活塞移液管，增设了在可在管体内上下活动的活塞，并通过位于管体外的调节环控制活塞的升降，所述调节环内壁与活塞之间通过永磁体实现联动。该移液管能够通过调节管体外的调节环的位置，无需如传统移液管般依靠控制洗耳球的真空度，即可实现移液管的定量吸取。

The invention discloses a permanent magnet piston pipette, which comprises a tube body, the tube body includes a pointed suction end and a flat end, the tube body surface is provided with scales, and also includes a piston and an adjustment ring. The piston includes a main body and a front part, the main body is in the shape of a cylinder, its outer diameter is adapted to the inner diameter of the pipe body, the shape of the front part is adapted to the inner contour of the suction end of the pipe body, and the adjusting ring is sleeved Outside the tube, the inner wall of the adjustment ring and the piston realize linkage through permanent magnets. The permanent magnet piston pipette adds a piston that can move up and down in the tube body, and controls the lifting of the piston through an adjustment ring located outside the tube body. The inner wall of the adjustment ring and the piston are linked by a permanent magnet. The pipette can adjust the position of the adjustment ring outside the pipette without relying on controlling the vacuum degree of the ear washing ball like the traditional pipette, so as to realize the quantitative suction of the pipette.

Description

Translated fromChinese

一种永磁活塞移液管A permanent magnetic piston pipette

技术领域technical field

本发明涉及通用化学实验室设备技术领域。The invention relates to the technical field of general chemical laboratory equipment.

背景技术Background technique

移液管作为实验室常用的仪器之一，现有的改进设计大部分关注点在于如何实现批量吸取，或是定量精密吸取。如专利号201710530667.6的中国专利，公开了一种具有电磁控制的批量吸取移液管，包括安装板、滑轨、滑块、升降机构、移液管、电磁铁及对应的移液管活塞等部件。通过开关控制电磁铁是否通电工作，通过调整升降机构控制吸取量，令各移液管可同时吸取不同液量的目的。As one of the commonly used instruments in the laboratory, the pipette is mostly focused on how to achieve batch suction or quantitative precision suction in the existing improved design. For example, the Chinese patent with patent number 201710530667.6 discloses a batch suction pipette with electromagnetic control, including mounting plate, slide rail, slider, lifting mechanism, pipette, electromagnet and corresponding pipette piston and other components . The switch is used to control whether the electromagnet is energized to work, and the suction volume is controlled by adjusting the lifting mechanism, so that each pipette can suck different liquid volumes at the same time.

上述技术方案的升降机构是通过螺纹轴和蝶形螺栓进行调整的，难以确定调整量与实际吸取量之间的比值，需要反复微调验证，所以在实际使用中并不能起到减轻工作量的效果。The lifting mechanism of the above technical solution is adjusted through the threaded shaft and the butterfly bolt, it is difficult to determine the ratio between the adjustment amount and the actual suction amount, and repeated fine-tuning verification is required, so it cannot reduce the workload in actual use. .

发明内容Contents of the invention

本发明提供一种永磁活塞移液管，其无需配合洗耳球，能够从管体外部控制液面高度，有效简化现有的移液管的操作方式。The invention provides a permanent magnetic piston pipette, which does not need to be equipped with an ear washing ball, can control the height of the liquid level from the outside of the pipe body, and effectively simplifies the operation mode of the existing pipette.

一种永磁活塞移液管，包括管体，所述管体包括尖头的吸取端和平头的末端，所述管体表面设有刻度，还包括活塞和调节环，所述活塞包括主体和前部，所述主体呈圆柱状，其外径与管体的内径相适配，所述前部的形状与管体的吸取端的内部轮廓相适配，所述调节环套接于管体外，所述调节环内壁与活塞之间通过永磁体实现联动。A permanent magnetic piston pipette, comprising a tube body, the tube body includes a pointed suction end and a flat end, the surface of the tube body is provided with scales, and also includes a piston and an adjustment ring, and the piston includes a main body and a In the front part, the main body is in the shape of a cylinder, its outer diameter matches the inner diameter of the tube body, the shape of the front part matches the inner contour of the suction end of the tube body, and the adjustment ring is sleeved outside the tube body, The linkage between the inner wall of the adjustment ring and the piston is realized through a permanent magnet.

进一步，所述活塞的主体表面由树脂类，陶瓷类，碳化钨类自润滑材质制成。Further, the main body surface of the piston is made of resin, ceramic, or tungsten carbide self-lubricating materials.

进一步，所述调节环还包括可夹紧管体的定位夹。Further, the adjusting ring also includes a positioning clip capable of clamping the pipe body.

本发明公开的永磁活塞移液管，增设了在可在管体内上下活动的活塞，并通过位于管体外的调节环控制活塞的升降，所述调节环内壁与活塞之间通过永磁体实现联动。该移液管能够通过调节管体外的调节环的位置，无需如传统移液管般依靠控制洗耳球的真空度，即可实现移液管的定量吸取。The permanent magnet piston pipette disclosed by the present invention adds a piston that can move up and down in the tube body, and controls the lifting of the piston through an adjustment ring located outside the tube body, and the inner wall of the adjustment ring and the piston are linked by a permanent magnet . The pipette can achieve quantitative suction of the pipette by adjusting the position of the adjustment ring outside the pipette without relying on controlling the vacuum degree of the ear washing ball like traditional pipettes.

附图说明Description of drawings

为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单说明。显然，所描述的附图只是本发明的一部分实施例，而不是全部实施例，本领域的技术人员在不付出创造性劳动的前提下，还可以根据这些附图获得其他设计方案和附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly describe the drawings that need to be used in the description of the embodiments. Apparently, the described drawings are only some embodiments of the present invention, not all embodiments, and those skilled in the art can obtain other designs and drawings based on these drawings without creative work.

图1是所述永磁活塞移液管的结构示意图。Fig. 1 is a structural schematic diagram of the permanent magnetic piston pipette.

具体实施方式Detailed ways

以下将结合实施例和附图对本发明的构思、具体结构及产生的技术效果进行清楚、完整地描述，以充分地理解本发明的目的、特征和效果。显然，所描述的实施例只是本发明的一部分实施例，而不是全部实施例，基于本发明的实施例，本领域的技术人员在不付出创造性劳动的前提下所获得的其他实施例，均属于本发明保护的范围。另外，文中所提到的所有联接/连接关系，并非单指构件直接相接，而是指可根据具体实施情况，通过添加或减少联接辅件，来组成更优的联接结构。本发明创造中的各个技术特征，在不互相矛盾冲突的前提下可以交互组合。The idea, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features and effects of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to The protection scope of the present invention. In addition, all the connection/connection relationships mentioned in this article do not refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. The various technical features in the invention can be combined interactively on the premise of not conflicting with each other.

实施例1：如图1所示，一种永磁活塞移液管，包括管体1、活塞2和调节环3，所述管体1包括尖头的吸取端11和平头的末端12，所述管体1表面设有刻度，所述活塞2包括主体和前部，所述主体呈圆柱状，其外径与管体1的内径相适配，所述前部的形状与管体1的吸取端11的内部轮廓相适配，所述调节环3套接于管体1外，所述调节环3内壁与活塞2之间通过永磁体实现联动。所述活塞2的主体表面由树脂类，陶瓷类，碳化钨类自润滑材质制成。所述调节环3还包括可夹紧管体1的定位夹。Embodiment 1: as shown in Figure 1, a kind of permanent magnetic piston pipette comprises tube body 1, piston 2 and adjustment ring 3, and described tube body 1 comprises the end 12 of the suction end 11 of pointed tip and flat head, so The surface of the pipe body 1 is provided with a scale, the piston 2 includes a main body and a front part, the main body is cylindrical, its outer diameter matches the inner diameter of the pipe body 1, and the shape of the front part is consistent with the shape of the pipe body 1. The inner contour of the suction end 11 is adapted, the adjustment ring 3 is sleeved outside the pipe body 1 , and the inner wall of the adjustment ring 3 and the piston 2 are linked by a permanent magnet. The main body surface of the piston 2 is made of resin, ceramic, tungsten carbide self-lubricating materials. The adjustment ring 3 also includes a positioning clip that can clamp the pipe body 1 .

以上对本发明的较佳实施方式进行了具体说明，但本发明创造并不限于所述实施例，熟悉本领域的技术人员在不违背本发明精神的前提下还可作出种种的等同变型或替换，这些等同的变型或替换均包含在本申请权利要求所限定的范围内。The preferred embodiments of the present invention have been described in detail above, but the invention is not limited to the described embodiments, and those skilled in the art can also make various equivalent modifications or replacements without violating the spirit of the present invention. These equivalent modifications or replacements are all within the scope defined by the claims of the present application.

Claims (3)

1. a kind of permanent magnetic piston pipette, including body, the body includes the suction end of tip and the end of tack, the pipeBody surface face is provided with scale, it is characterised in that：Also include piston and regulation ring, the piston includes main body and front portion, the main bodyCylindrical, its external diameter is adapted with the internal diameter of body, and the in-profile of the anterior shape and the suction end of body is mutually fittedMatch somebody with somebody, the regulation ring is socketed on outside body, is realized and linked by permanent magnet between the regulation ring inwall and piston.

2. permanent magnetic piston pipette according to claim 1, it is characterised in that：The body surfaces of the piston are by resinClass, ceramic-like, tungsten carbide class self-lubricating material are made.

3. permanent magnetic piston pipette according to claim 1, it is characterised in that：The regulation ring also includes that body can be clampedLocating clip.