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Photoelectric counting device for pipettor

A photoelectric counting and pipette technology, applied in the field of biochemistry, can solve the problems of inaccurate counting and reading, and achieve the effect of easy reading, eliminating errors and accurate calculation

Active Publication Date: 2016-12-07
湖南恒诺仪器设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing pipette counting method on the market adopts the principle of mechanical structure. The bearing screw is used to rotate the digital wheel to rotate, and the user reads the scale on the digital wheel to obtain the measurement data. This method is due to the rotation between the digital wheels. Gaps exist, resulting in inaccurate counts and readings

Method used

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  • Photoelectric counting device for pipettor
  • Photoelectric counting device for pipettor

Examples

Experimental program
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Effect test

Embodiment 1

[0018] refer to figure 1 as well as figure 2 , this embodiment includes a threaded rod 1 and a bracket 2, the threaded rod 1 is connected with a liquid suction push rod 3, and also includes a counting disc assembly 4, a photoelectric counting assembly 9 and a display screen, and the counting disc assembly 4 is rotatably installed on the bracket 2 Inside, the counting disc assembly 4 is a cylindrical structure, the threaded rod 1 extends into the inside of the bracket 2 and passes through the counting disc assembly 4, the inner wall of the counting disc assembly 4 is provided with a protrusion 5, and the threaded rod 1 is provided with a matching connection with the protrusion 5 The groove; the bracket 2 is threadedly connected with the threaded rod 1;

[0019] The protrusion 5 is elongated, the protrusion 5 is arranged along the axial direction of the counting disc assembly 4, the groove is arranged on the outer periphery of the threaded rod 1, and the groove is arranged alo...

Embodiment 2

[0028] The only difference between this embodiment and Embodiment 1 is that only one counting disc is set on the counting disc assembly 4, and the photoelectric counting assembly 9 is only provided with one detection head 8 matching the counting disc.

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PUM

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Abstract

The invention discloses a photoelectric counting device for a pipettor. The photoelectric counting device comprises a threaded rod and a support. The threaded rod is connected with an imbibitions push rod. The photoelectric counting device further comprises a counting scale module, a photoelectric counting module and a display screen. The counting scale module is rotationally installed in the support. The counting scale module is of a cylinder structure. The threaded rod extends into the support and penetrates through the counting scale assembly. Protrusions are arranged on the inner wall of the counting scale module, and the threaded rod is provided with grooves connected with the protrusions in a matched mode. The support is in threaded connection with the threaded rod. The counting scale module is at least sleeved with a counting scale. A plurality of counting holes are evenly formed in the outer edge of the counting scale. The photoelectric counting module is provided with a detection head. The position of the detection head is matched with the positions of the counting holes, and the photoelectric counting module is connected with the display screen. The photoelectric counting device is simple in structure, reading is easy, and reading precision can be improved.

Description

technical field [0001] The invention relates to instruments and equipment in the field of biochemistry, in particular to a photoelectric counting device for a pipette. Background technique [0002] Pipettes are often used in biochemistry and other fields. Pipettes are used to measure a small or small amount of liquid for analysis and testing. The operation of the pipette needs to be quite meticulous, and the measurement structure of the pipette also needs to be quite precise. . [0003] The existing pipette counting method on the market adopts the principle of mechanical structure. The bearing screw is used to rotate the digital wheel to rotate, and the user reads the scale on the digital wheel to obtain the measurement data. This method is due to the rotation between the digital wheels. Gaps exist, resulting in inaccurate counts and readings. Contents of the invention [0004] In order to solve the problems in the prior art, the present invention proposes a photoelectri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06M1/272B01L3/02
CPCB01L3/02G06M1/272
Inventor 吴成波
Owner 湖南恒诺仪器设备有限公司