CN202821378U - Pad loading type centrifugal-falling-proof locking mechanism for splash-proof cap - Google Patents
Pad loading type centrifugal-falling-proof locking mechanism for splash-proof cap Download PDFInfo
- Publication number
- CN202821378U CN202821378U CN 201220370553 CN201220370553U CN202821378U CN 202821378 U CN202821378 U CN 202821378U CN 201220370553 CN201220370553 CN 201220370553 CN 201220370553 U CN201220370553 U CN 201220370553U CN 202821378 U CN202821378 U CN 202821378U
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- plug
- ring
- liner ring
- test tube
- unidirectional
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Abstract
The utility model relates to the technical field of vacuum blood sampling, in particular to a pad loading type centrifugal-falling-proof locking mechanism for a splash-proof cap. The mechanism comprises the splash-proof cap, a rubber stopper, a pad ring, a test tube, an annular groove and a plurality of unidirectional sheets, wherein the pad ring is an annular rotator made of rigid plastic, and is combined integrally by a horizontal circular ring sheet on the top surface of the pad ring with a vertical cylinder on the side surface of the pad ring; the horizontal circular ring sheet of the pad ring is positioned between the bottom surface of a cylindrical body with a larger diameter of the rubber stopper and an upper port of the test tube; the rectangular unidirectional sheets are arranged on an outer wall of the vertical cylinder of the pad ring; and the lower ends of the unidirectional sheets cock outwards. The mechanism adopts the pad ring to act as a bridge, and locks the splash-proof cap and the rubber stopper at axial positions; the condition that the existing spray-proof cap often slips from the rubber stopper is precluded; and the mechanism has the advantage of simplicity and convenience in assembling.
Description
Technical field
This utility model relates to the vacuum blood drawing technique field, particularly relates to the anti-centrifugal locked mechanism that comes off of a kind of liner loaded type splash cap.
Background technology
Existing vacuum test tube, usually by test tube, fill in the butyl rubber plug of test tube mouth and splash cap three parts that are placed on the butyl rubber plug and consist of.During the blood sample of doctor in taking blood taking tube; need first plug to be extracted from the mouth of pipe; pulled away the moment of test tube when plug; atmospheric pressure forces outside air to pour rapidly in vitro; can cause that the blood sample in the pipe outwards splashes from the mouth of pipe; and splash cap has played and has stopped that blood sample splashes, the effect of protection laboratorian's safety.
But in the state of the art, the adhesion of splash cap and plug is strong not, so that blood taking tube carries out in centrifuge in the process of blood sample separation, splash cap can break away from from the plug surface sliding and with plug on the one hand for this; On the other hand, when the laboratorian pinches splash cap and wants plug together extracted from the test tube mouth, splash cap and plug generation relative sliding, so that splash cap slides from plug, and plug does not still break away from the test tube mouth fully.The generation of these situations has not only reduced the efficient of chemical examination work, and has made chemical examination work have potential safety hazard.
Increase the adhesion of splash cap and plug, common technical scheme is the frictional force that increases splash cap and plug, such as the size by increasing plug to increase plug to the lateral pressure of splash cap medial wall etc., although but the technical scheme of this class can strengthen the adhesion of splash cap and plug, but also increased simultaneously with the two frictional resistance in splash cap and the plug assembling process, for assembly working has increased difficulty.
Therefore, in the prior art, do not have effective technical scheme and can realize to make and have good adhesion between splash cap and the plug, can make the assembling process of the two easy again, laborsaving.
The utility model content
This utility model is for solving the deficiencies in the prior art, provide between a kind of splash cap and the plug and can be combined as a whole easily, but can obtain enough large adhesion, eliminate the anti-centrifugal locked mechanism that comes off of liner loaded type splash cap of the probability that splash cap slips away from plug fully.
The scheme that solves this utility model technical problem is:
Liner loaded type splash cap is prevented the centrifugal locked mechanism that comes off, and is made of splash cap, plug, liner ring, test tube, cannelure and unidirectional.
Wherein, plug is the shaft section that is combined into by two cylinders that diameter does not wait for falling the rotary body of convex shape, and the barrel portion that diameter is less is in and becomes the interference fit relation in the upper port of test tube and with test tube.
The liner ring is that material is the ring rotation body of rigid plastics.The liner ring is combined as a whole by the horizontal circle ring plate of its end face and the vertical cylinder of its side.
The horizontal circle ring plate of liner ring is between the upper port of the larger cylinder bottom surface of the diameter of described plug and described test tube.The vertical cylinder of liner ring is placed on the sidewall of upper port of test tube and with test tube and becomes clearance fit relationship.It is unidirectional of holistic, laterally perk of lower end, rectangle that a plurality of and liner ring are arranged on the outer wall of the vertical cylinder of liner ring, angle between the axial line of each unidirectional and liner ring is 20 °-35 °, and a plurality of unidirectional even circumferentials along the liner ring distribute.
In the medial wall of splash cap one cannelure is arranged, the vertical extension of cannelure is greater than described unidirectional vertical extension.The vertical distance on the bottom surface, top of splash cap to the lower edge of cannelure is greater than the distance of described unidirectional lower limb to the end face of plug.
The first half of splash cap is placed on the plug and becomes the interference fit relation with plug, and the Lower Half of splash cap is placed on the liner ring and with the liner ring and becomes clearance fit relationship.Described unidirectional all is in the described cannelure.
Assembling places the liner ring first the upper port place of test tube during blood taking tube, the lower end of plug is passed described liner ring again and is filled in the upper port of test tube, at last splash cap is placed on plug and the liner ring from top to bottom.When the lower edge of cannelure is passed through unidirectional, move to liner ring direction of axis line under the pressure-acting on edge under cannelure, unidirectional lower end, lower to through behind the unidirectional lower end when cannelure outwards upspring under self elastic force effect and is in fully in the described cannelure for unidirectional.At this moment, the relation of the axial location between splash cap and the plug is locked by the one-way locking structure of cannelure and unidirectional formation.
Adopt such scheme, compared with prior art, the utlity model has following marked improvement:
1. this utility model is because the effect of having adopted the liner ring to serve as bridge; splash cap and plug are carried out the locking of axial location; existing splash cap and plug have not only been stopped in centrifuge; because the situation in conjunction with the frequent slippage of defective tightness occurs; and avoided medical worker's splash cap in the process of the splash cap of opening the test tube mouth and plug to break away from plug, eliminated the bio-safety hidden danger that causes thus.
2. this utility model need not to change the shape size of existing plug, therefore still can use existing plug when assembling, has saved the improvement cost of blood taking tube.
3. this utility model is with also having simple and convenient assembly, labour-saving advantage.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged drawing of structural representation at the A place of Fig. 1.
Among the figure: 1. splash cap 2. plugs 3. liner rings 4. test tubes 5. cannelures are 6. unidirectional
The specific embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Liner loaded type splash cap is prevented the centrifugal locked mechanism that comes off, and is made of splash cap 1, plug 2, liner ring 3, test tube 4, cannelure 5 and unidirectional 6.
Wherein, plug 2 is shaft sections of being combined into by two cylinders that diameter does not wait for falling the rotary body of convex shape, and the barrel portion that diameter is less is in the upper port of test tube 4 and with 4 one-tenths interference fit of test tube and concerns.
The horizontal circle ring plate of liner ring 3 is between the upper port of the larger cylinder bottom surface of the diameter of described plug 2 and described test tube 4.The vertical cylinder of liner ring 3 be placed on the sidewall of upper port of test tube 4 and with 4 one-tenth clearance fit relationship of test tube.There is a plurality of and liner ring 3 to be unidirectional 6 of holistic, laterally perk of lower end, rectangle on the outer wall of the vertical cylinder of liner ring 3, angle between the axial line of each unidirectional 6 and liner ring 3 is 20 °-35 °, and a plurality of unidirectional 6 even circumferentials along liner ring 3 distribute.
In the medial wall of splash cap 1 cannelure 5 is arranged, the vertical extension of cannelure 5 is greater than described unidirectional 6 vertical extension.The vertical distance on the bottom surface, top of splash cap 1 to the lower edge of cannelure 5 is greater than the distance of described unidirectional 6 lower limb to the end face of plug 2.
The first half of splash cap 1 be placed on the plug 2 and with 2 one-tenth interference fit relations of plug, the Lower Half of splash cap 1 be placed on the liner ring 3 and with 3 one-tenth clearance fit relationship of liner ring.Described unidirectional 6 all is in the described cannelure 5.
Assembling places liner ring 3 first the upper port place of test tube 4 during blood taking tube, the lower end of plug 2 is passed described liner ring 3 again and is filled in the upper port of test tube 4, at last splash cap 1 is placed on plug 2 and the liner ring 3 from top to bottom.When the lower edge of cannelure 5 is passed through unidirectional 6, move to liner ring 3 direction of axis line under the pressure-acting on 5 times edges of cannelure in unidirectional 6 lower end, lower to through behind unidirectional 6 the lower end when cannelure 5 outwards upspring under self elastic force effect and is in fully in the described cannelure 5 for unidirectional 6.At this moment, the relation of the axial location between splash cap 1 and the plug 2 is by cannelure 5 and unidirectional 6 one-way locking structure locking that consists of.
Claims (1)
1. a liner loaded type splash cap is prevented the centrifugal locked mechanism that comes off, by splash cap, plug, the liner ring, test tube, cannelure and unidirectional formation, it is characterized in that: plug is the shaft section that is combined into by two cylinders that diameter does not wait for falling the rotary body of convex shape, the barrel portion that diameter is less is in and becomes the interference fit relation in the upper port of test tube and with test tube, the liner ring is that material is the ring rotation body of rigid plastics, the liner ring is combined as a whole by the horizontal circle ring plate of its end face and the vertical cylinder of its side, the horizontal circle ring plate of liner ring is between the upper port of the larger cylinder bottom surface of the diameter of described plug and described test tube, the vertical cylinder of liner ring is placed on the sidewall of upper port of test tube and with test tube and becomes clearance fit relationship, it is holistic that a plurality of and liner ring are arranged on the outer wall of the vertical cylinder of liner ring, laterally perk of lower end, unidirectional of rectangle, angle between the axial line of each unidirectional and liner ring is 20 °-35 °, a plurality of unidirectional even circumferentials along the liner ring distribute, in the medial wall of splash cap one cannelure is arranged, the vertical extension of cannelure is greater than described unidirectional vertical extension, the vertical distance on the bottom surface, top of splash cap to the lower edge of cannelure is greater than the distance of described unidirectional lower limb to the end face of plug, the first half of splash cap is placed on the plug and becomes interference fit to concern with plug, the Lower Half of splash cap is placed on the liner ring and with the liner ring and becomes clearance fit relationship, and described unidirectional all is in the described cannelure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370553 CN202821378U (en) | 2012-07-29 | 2012-07-29 | Pad loading type centrifugal-falling-proof locking mechanism for splash-proof cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370553 CN202821378U (en) | 2012-07-29 | 2012-07-29 | Pad loading type centrifugal-falling-proof locking mechanism for splash-proof cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202821378U true CN202821378U (en) | 2013-03-27 |
Family
ID=47933198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220370553 Withdrawn - After Issue CN202821378U (en) | 2012-07-29 | 2012-07-29 | Pad loading type centrifugal-falling-proof locking mechanism for splash-proof cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202821378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772214A (en) * | 2012-07-29 | 2012-11-14 | 宁波市鄞州青林医疗器械技术咨询有限公司 | Anti-centrifugal dropping locking mechanism for anti-splattering cap |
-
2012
- 2012-07-29 CN CN 201220370553 patent/CN202821378U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772214A (en) * | 2012-07-29 | 2012-11-14 | 宁波市鄞州青林医疗器械技术咨询有限公司 | Anti-centrifugal dropping locking mechanism for anti-splattering cap |
| CN102772214B (en) * | 2012-07-29 | 2014-08-06 | 宁波江东峻峰医疗器械技术咨询有限公司 | Anti-centrifugal dropping locking mechanism for anti-splattering cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130327 Effective date of abandoning: 20140806 |
|
| RGAV | Abandon patent right to avoid regrant |