CN202821376U - Centrifugal slide-resistant assembly of splash-proof cap and rubber plug - Google Patents
Centrifugal slide-resistant assembly of splash-proof cap and rubber plug Download PDFInfo
- Publication number
- CN202821376U CN202821376U CN 201220370217 CN201220370217U CN202821376U CN 202821376 U CN202821376 U CN 202821376U CN 201220370217 CN201220370217 CN 201220370217 CN 201220370217 U CN201220370217 U CN 201220370217U CN 202821376 U CN202821376 U CN 202821376U
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- plug
- splash
- splash cap
- projection
- vertical slot
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Abstract
The utility model relates to the technical field of vacuum blood collection, in particular to a centrifugal slide-resistant assembly of a splash-proof cap and a rubber plug. The centrifugal slide-resistant assembly comprises the splash-proof cap, the rubber plug, vertical grooves, bulges and transverse grooves. The cylindrical bulges that have the same height, size and shape are arranged on an inner side wall of the splash-proof cap; a plurality of L-shaped grooves are formed in a side wall surface of the upper half part of the rubber plug; and the number of the L-shaped grooves is equal to the number of the bulges. With the adoption of the centrifugal slide-resistant assembly, a smaller resistance between the splash-proof cap and the rubber plug during an assembling course can be ensured; the transverse grooves of the rubber plug can exert stronger axial locking forces on the bulges of the splash-proof cap after assembling is finished; and the axial relative slide between the splash-proof cap and the rubber plug is avoided effectively.
Description
Technical field
This utility model relates to the vacuum blood drawing technique field, particularly relates to a kind of the have splash cap of centrifugal cling property and the molectron of plug.
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.
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 splash cap with centrifugal cling property of the probability that splash cap slips away from plug and the molectron of plug fully.
The scheme that solves this utility model technical problem is:
Have the splash cap of centrifugal cling property and the molectron of plug, consisted of by splash cap, plug, vertical slot, projection and transverse groove.Splash cap is the cylindrical shape rigid plastics housing that the upper end has a through hole, lower end to open wide.The shaft section of columniform described plug is for falling convex shape.The first half of plug is in the described splash cap and becomes the interference fit relation with splash cap, the Lower Half of plug be in test tube suitable for reading in and become the interference fit relation with test tube.Have on the medial wall of splash cap that a plurality of height and positions are identical, the equal identical columniform projection of size and shape, each protruding length is 0.5-1.5mm, diameter is 1.0-2.0mm.Described a plurality of projection distributes along the medial surface even circumferential of splash cap.And the axial line of a plurality of projections intersects at a point, and this intersection point is positioned on the axial line of splash cap.The sidewall surfaces of the first half of plug has a plurality of L shaped groove that equates with the number of projection, and each L shaped groove consists of by vertical slot and the transverse groove that is communicated with the vertical slot bottom.The top of each vertical slot is positioned on the end face of described plug and opens wide.Each projection is in the corresponding with it transverse groove, and each projection becomes clearance fit relationship with vertical slot, transverse groove respectively.The groove depth of each vertical slot and transverse groove is all greater than each protruding length.The axial line of projection and the distance between the bottom surface at splash cap top equal the distance between the horizontal center line of the end face of plug and transverse groove.Described a plurality of L shaped groove distributes along the even circumferential of the plug first half.
The workman is in the process of assembling splash cap and plug, first the projection of splash cap is alignd with the vertical slot of plug, splash cap is placed in downwards on the plug, when projection reaches the vertical slot bottom, horizontal direction is rotated splash cap, makes each projection reach the other end of transverse groove.At this moment and since transverse groove to projection stop that the relative axial position of splash cap and plug is locked, to axial displacement can't occur in the two.
Adopt such scheme, compared with prior art, the utlity model has following marked improvement:
Because the mode that this utility model cooperatively interacts by L shaped groove and cylindrical protrusions, so that the projection of splash cap inboard both can be done axially-movable along the vertical slot of plug, can move horizontally along the transverse groove of plug again, so just can either guarantee that splash cap and plug have less resistance in assembling process, the transverse groove that can make again simultaneously plug after assembling finishes plays stronger axial locking force to the projection of splash cap, prevented that effectively splash cap and plug from axial relative sliding occuring, improved the efficient of chemical examination work, the more important thing is to have guaranteed laboratory personnel's safety in the procedure.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A profile of Fig. 1;
Fig. 3 is the B-B profile of Fig. 1.
Among the figure: 1. splash cap 2. plugs 3. vertical slot 4. protruding 5. transverse grooves, 6. test tubes
The specific embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Have the splash cap of centrifugal cling property and the molectron of plug, consisted of by splash cap 1, plug 2, vertical slot 3, projection 4 and transverse groove 5.
Splash cap 1 is the cylindrical shape rigid plastics housing that the upper end has a through hole, lower end to open wide.The shaft section of columniform described plug 2 is for falling convex shape.The first half of plug 2 be in the described splash cap 1 and with 1 one-tenth interference fit relation of splash cap, the Lower Half of plug 2 be in test tube 6 suitable for reading in and become the interference fit relation with test tube.
Have on the medial wall of splash cap 1 that a plurality of height and positions are identical, size and shape is all identical columniform protruding 4, the length of each projection 4 is 0.5-1.5mm, diameter is 1.0-2.0mm.The described a plurality of protruding 4 medial surface even circumferentials along splash cap 1 distribute.And a plurality of axial lines of protruding 4 intersect at a point, and this intersection point is positioned on the axial line of splash cap 1.
The sidewall surfaces of the first half of plug 2 has a plurality of L shaped groove that equates with projection 4 number, and each L shaped groove is by vertical slot 3 and transverse groove 5 formations that are communicated with vertical slot 3 bottoms.
The top of each vertical slot 3 is positioned on the end face of described plug 2 and opens wide.
Each projection 4 is in the with it corresponding transverse groove 5, and each projection 4 respectively with vertical slot 3,5 one-tenth clearance fit relationship of transverse groove.
The groove depth of each vertical slot 3 and transverse groove 5 is all greater than the length of each projection 4.
Distance between the bottom surface at projection 4 axial line and splash cap top equals the distance between the horizontal center line of the end face of plug 2 and transverse groove 5.
Described a plurality of L shaped groove distributes along the even circumferential of plug 2 first halves.
The workman is in the process of assembling splash cap 1 and plug 2, first the projection 4 of splash cap 1 is alignd with the vertical slot 3 of plug 2, splash cap 1 is placed in downwards on the plug 2, when projection 4 reaches vertical slot 3 bottom, horizontal direction is rotated splash cap 1, makes each projection 4 reach the other end of transverse groove 5.At this moment and since 5 pairs of projections 4 of transverse groove stop that the relative axial position of splash cap 1 and plug 2 is locked, to axial displacement can't occur in the two.
Claims (1)
1. one kind has the splash cap of centrifugal cling property and the molectron of plug, by splash cap, plug, vertical slot, projection and transverse groove consist of, it is characterized in that: splash cap is that the upper end has a through hole, the cylindrical shape rigid plastics housing that the lower end opens wide, the shaft section of columniform described plug is for falling convex shape, the first half of plug is in the described splash cap and becomes interference fit to concern with splash cap, the Lower Half of plug be in test tube suitable for reading in and become the interference fit relation with test tube, there are a plurality of height and positions identical on the medial wall of splash cap, size and shape is identical columniform projection all, each protruding length is 0.5-1.5mm, diameter is 1.0-2.0mm, described a plurality of projection distributes along the medial surface even circumferential of splash cap, and the axial line of a plurality of projections intersects at a point, and this intersection point is positioned on the axial line of splash cap, the sidewall surfaces of the first half of plug has a plurality of L shaped groove that equates with the number of projection, each L shaped groove consists of by vertical slot and the transverse groove that is communicated with the vertical slot bottom, the top of each vertical slot is positioned on the end face of described plug and opens wide, each projection is in the corresponding with it transverse groove, and each projection respectively with vertical slot, transverse groove becomes clearance fit relationship, the groove depth of each vertical slot and transverse groove is all greater than each protruding length, distance between the bottom surface at axial line and the splash cap top of projection equals the distance between the horizontal center line of the end face of plug and transverse groove, and described a plurality of L shaped grooves are along the even circumferential distribution of the plug first half.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370217 CN202821376U (en) | 2012-07-29 | 2012-07-29 | Centrifugal slide-resistant assembly of splash-proof cap and rubber plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370217 CN202821376U (en) | 2012-07-29 | 2012-07-29 | Centrifugal slide-resistant assembly of splash-proof cap and rubber plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202821376U true CN202821376U (en) | 2013-03-27 |
Family
ID=47933196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220370217 Expired - Fee Related CN202821376U (en) | 2012-07-29 | 2012-07-29 | Centrifugal slide-resistant assembly of splash-proof cap and rubber plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202821376U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102813603A (en) * | 2012-07-29 | 2012-12-12 | 宁波市鄞州青林医疗器械技术咨询有限公司 | Splash-proof cap and rubber plug assembly with locking function |
| CN109084844A (en) * | 2018-09-03 | 2018-12-25 | 温州市林鸥工程建设监理有限公司 | A kind of building structure entity multi-tester |
-
2012
- 2012-07-29 CN CN 201220370217 patent/CN202821376U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102813603A (en) * | 2012-07-29 | 2012-12-12 | 宁波市鄞州青林医疗器械技术咨询有限公司 | Splash-proof cap and rubber plug assembly with locking function |
| CN109084844A (en) * | 2018-09-03 | 2018-12-25 | 温州市林鸥工程建设监理有限公司 | A kind of building structure entity multi-tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20130729 |