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Automatic spring puncture needle sampling structure

A puncture needle and automatic technology, which is applied in the field of automatic spring puncture needle sampling structure, can solve the problems of complex structure of two independent needles, occupying space for operation, difficulty in ensuring sample suction accuracy, etc., so as to reduce cross-contamination and realize low cost. , the effect of preventing contamination

Pending Publication Date: 2018-05-04
RAYKOL GROUP XIAMEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing automatic puncture sampling method is to fix the sample bottle or rely on the weight of the sample bottle to separate it or rely on a fixed baffle to prevent the sample bottle from being taken up, but the baffle structure has great limitations for bottles of different heights sex
[0003] Existing puncture needles are either one-needle structure, or use two separate needles, the existing single-needle puncture suction sample is difficult to ensure the accuracy of sample suction, especially when the sample volume is large; independent The structure of the two needles is complicated, and it takes up a lot of space to operate

Method used

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  • Automatic spring puncture needle sampling structure
  • Automatic spring puncture needle sampling structure
  • Automatic spring puncture needle sampling structure

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Embodiment Construction

[0023] Such as Figure 1-3 As shown, an automatic spring puncture needle sampling structure 100 disclosed in the present invention includes an upper guide sleeve 1, a lower guide sleeve 2, an automatic spring 3, a needle holder 4 and a puncture needle 5; the lower guide sleeve 2 is slidably sleeved on the upper The lower end of the guide sleeve 1, and the lower guide sleeve is sleeved on the lower end of the upper guide sleeve; the lower end of the needle holder 4 is fixedly sleeved on the upper end of the upper guide sleeve 1; the automatic spring 3 is set in the upper guide sleeve 1, and the upper end of the automatic spring 3 is connected to the needle The lower end of the fixing seat 4 is connected to the lower guide sleeve 2; the puncture needle 5 includes a long needle 51 and a short needle 52, the long needle 51 is set in the upper guide sleeve 1, and the upper end of the long needle 51 is pierced and fixed on the needle fixing seat 4 Among them, the lower end of the lo...

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Abstract

The invention discloses an automatic spring puncture needle sampling structure. The automatic spring puncture needle sampling structure comprises an upper guide sleeve, a lower guide sleeve, an automatic spring, a needle fixing base and a puncture needle; the lower guide sleeve is in sliding and sleeving connection with the lower end of the upper guide sleeve; the lower end of the needle fixing base is fixedly connected with the upper end of the upper guide sleeve in a sleeving way; the automatic spring is arranged in the upper guide sleeve; the upper end of the automatic spring is connected with the needle fixing base and the lower end of the automatic spring is connected with the lower guide sleeve; the puncture needle is arranged in the upper guide sleeve; the upper end of the punctureneedle penetrates through and is fixed in the needle fixing base; and the lower end of the puncture needle penetrates through the lower guide sleeve. The automatic spring puncture needle sampling structure is suitable for sampling of sealed sample bottles with different height, realizes high-precision sampling and is low in manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of sampling equipment, in particular to an automatic spring puncture needle sampling structure. Background technique [0002] The existing automatic puncture sampling method is to fix the sample bottle or rely on the weight of the sample bottle to separate it or rely on a fixed baffle to prevent the sample bottle from being taken up, but the baffle structure has great limitations for bottles of different heights sex. [0003] Existing puncture needles are either one-needle structure, or use two separate needles, the existing single-needle puncture suction sample is difficult to ensure the accuracy of sample suction, especially when the sample volume is large; independent The structure of the two needles is complicated, and it takes up a lot of space to operate. [0004] In view of this, the inventor improved the sampling structure of the puncture needle, and specially developed a high-precision sampling st...

Claims

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Application Information

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IPC IPC(8): G01N35/10
CPCG01N35/1009
Inventor 李小库
Owner RAYKOL GROUP XIAMEN CO LTD
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