Pipettor

A technology of a pipette and a counter, applied in the field of pipettes, can solve the problems of changing the range of the pipette, reducing the precision of the pipette, and rotating the inner part of the upper casing, and achieves the effect of improving the precision and facilitating the adjustment.

Pending Publication Date: 2020-09-25
DRAGON LAB INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above existing technical solutions have the following defects: using the pipette in the prior art, while moving the operating element along the axis of the lead screw to realize the action of the pipette suck

Method used

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Embodiment Construction

[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0040] refer to figure 1 and figure 2 , the present invention provides a pipette, comprising a ring tube 1, a counter assembly 2, an operation button 3, a screw assembly 4, a piston assembly 5 and an adjustment assembly 6, the ring tube 1 is vertically arranged and the inside is hollow, and the operation button 3, The screw assembly 4 and the piston assembly 5 are sequentially arranged inside the ring tube 1 from top to bottom. Press the operation button 3, the screw assembly 4 will change the air pressure inside the piston assembly 5 to complete the process of suction and discharge. The counter assembly 2 It is arranged on one side of the screw assembly 4 and can display the volume of the pipette in digital form. The adjustment assembly 6 is arranged inside the ring tube 1 and can adjust the volume of the pipette, and the volume of the pipette can be adjus...

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PUM

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Abstract

The invention relates to the technical field of liquid transfer. The invention relates to a pipettor, in particular to a pipettor. The pipettor comprises a ring pipe, a driving rod arranged in the ring pipe, an operation button fixedly connected with the driving rod and enabling the pipettor to suck or discharge liquid, an adjusting assembly capable of driving the driving rod to reciprocate alongthe axis of the adjusting assembly to adjust the measuring range, and a counter assembly used for displaying the measuring range of the pipettor. The counter assembly comprises a mechanical counter, wherein a first driven gear is arranged at the input end of the mechanical counter; the adjusting assembly comprises a linkage piece capable of driving the first driven gear to rotate and an adjustingknob. The adjusting knob is arranged on the operating button in a sleeving mode and rotationally connected with the operating button, the adjusting knob is arranged in the annular pipe and can reciprocate in the axis direction of the driving rod to be connected with or disconnected from the linkage piece, a limiting piece for fixing the position of the adjusting knob is arranged on the annular pipe, and the effect of improving the precision of the pipettor is achieved.

Description

technical field [0001] The invention relates to the technical field of liquid transfer, in particular to a pipette. Background technique [0002] At present, a pipette is also called a pipette gun, which is a measuring tool that transfers liquid from the original container to another container within a certain range. [0003] The existing notification number is CN103447104B, which discloses a pipette, including a rod-shaped shell shaped as a handle, the shell has an upper part and a lower part of the shell, and the operating element in the form of a cylindrical button is in the The upper part protrudes from the upper part of the housing, and the operating element is screwed onto the cylindrical lifting rod with a threaded fastening in the cover. The lifting rod passes through a channel in the upper part of the lead screw in the upper part of the housing. The lead screw is screwed into the internal thread of the lead screw nut, which is held in a defined position in the upp...

Claims

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Application Information

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IPC IPC(8): B01L3/02
CPCB01L3/0213
Inventor 郭雷王宪华吴永杰
Owner DRAGON LAB INSTR
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