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Anti-centrifugal dropping locking mechanism for anti-splattering cap

A technology of locking mechanism and gasket, applied in the direction of sensor, diagnosis, type of packaged items, etc., can solve the problems of simple and labor-saving assembly process, and achieve the effect of simple assembly, eliminating hidden dangers of biological safety and saving transformation cost.

Inactive Publication Date: 2012-11-14
南通港闸船舶制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, in the prior art, there is no practical and effective technical solution that can achieve good bonding between the splash cap and the rubber plug, and make the assembly process of the two simple and labor-saving.

Method used

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  • Anti-centrifugal dropping locking mechanism for anti-splattering cap
  • Anti-centrifugal dropping locking mechanism for anti-splattering cap

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] The anti-centrifugal fall-off locking mechanism of the splash-proof cap is composed of a splash-proof cap 1, a rubber plug 2, a liner ring 3, a test tube 4, an annular groove 5 and a one-way plate 6.

[0024] Among them, the rubber plug 2 is a rotating body with an inverted convex cross-section formed by combining two cylinders with different diameters. The cylinder with a smaller diameter is located in the upper port of the test tube 4 and forms an interference with the test tube 4. cooperation relationship.

[0025] The backing ring 3 is an annular rotating body made of hard plastic. The backing ring 3 is integrated into a whole by the horizontal ring sheet on its top surface and the vertical cylinder on its side.

[0026] The horizontal ring piece of the backing ring 3 is located between the bottom surface of the larger diameter cylinder of ...

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Abstract

The invention relates to the technical field of vacuum blood collection, in particular to an anti-centrifugal dropping locking mechanism for an anti-splattering cap which comprises the anti-splattering cap, a rubber plug, a pad ring, a test tube, a circular groove and one-way pieces. The pad ring is a circular rotary body which is made of hard plastics, is formed into a whole by integrating a horizontal circular piece on the top surface and a vertical cylinder on the side surface; the horizontal circular piece of the pad ring is arranged between a cylindrical bottom surface of the rubber plug with a bigger diameter and the upper port of the test tube; and the outer wall of the vertical cylinder of the pad ring is provided with a plurality of rectangular one-way pieces with the lower ends being raised towards the outer sides. According to the anti-centrifugal dropping locking mechanism for the anti-splattering cap, the pad ring is adopted to serve as a bridge, the anti-splattering cap and the rubber plug are locked at an axial position, so that the defects that the existing anti-splattering cap and the rubber plug often slip off are overcome, and meanwhile the mechanism has the advantage of convenience in assembly.

Description

technical field [0001] The invention relates to the technical field of vacuum blood collection, in particular to an anti-centrifugal fall-off locking mechanism for a splash-proof cap. Background technique [0002] Existing vacuum blood collection tubes usually consist of three parts: a test tube, a butyl rubber stopper plugged in the test tube mouth, and a splash-proof cap sleeved on the butyl rubber stopper. When the doctor takes the blood sample in the blood collection tube, he needs to pull out the rubber stopper from the tube mouth first. When the rubber stopper is pulled out of the test tube, the atmospheric pressure makes the outside air rush into the test tube quickly, which will cause the blood sample in the tube to leak out of the tube mouth. Splash outwards, and the splash-proof cap plays a role in blocking the splash of blood samples and protecting the safety of the laboratory personnel. [0003] However, in the prior art in this field, the bonding force between ...

Claims

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Application Information

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IPC IPC(8): A61B5/154A61J1/14A61J1/05
Inventor 许小玲
Owner 南通港闸船舶制造有限公司
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