CN203469035U - Polypropylene pull-ring type combined cover for plastic transfusion container - Google Patents
Polypropylene pull-ring type combined cover for plastic transfusion container Download PDFInfo
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- CN203469035U CN203469035U CN201320555231.XU CN201320555231U CN203469035U CN 203469035 U CN203469035 U CN 203469035U CN 201320555231 U CN201320555231 U CN 201320555231U CN 203469035 U CN203469035 U CN 203469035U
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- cover
- draw
- ring type
- groove
- polypropylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- Closures For Containers (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The utility model discloses a polypropylene pull-ring type combined cover for a plastic transfusion container. The combined cover comprises an outer cover (1), a rubber plug (2) and an inner cover (3), wherein the rubber plug (2) is mounted between the outer cover (1) and the inner cover (3), and the inner cover (3) is mounted in the outer cover (1). The polypropylene pull-ring type combined cover for the plastic transfusion container is easy to assemble, high in strength, good in sealing performance, convenient to use, practical, and suitable for large-scale industrial production.
Description
Technical field
This utility model relates to a kind of combination cover for transfusion, particularly relates to polypropylene draw-ring type composite cover for a kind of plastic container for infusion.
Background technology
Along with the generally application of infusion treatment, infusion model has passed through from open, semi open model to fully closed evolution, and transfusion device changes the soft bag of non-PVC composite membrane of today into by the vial starting thereupon.While using soft bag infusion, need on the interface of soft bag, composite cover be housed, to facilitate contact pin when dosing and transfusion.Existing combination cover for transfusion, the structure that often all adopts composite membrane and roll over handle, when transfusion or dosing contact pin, tear composite membrane or the folding handle that fractures, expose plug.But the structure of composite membrane is produced more complicated; The structure of folding handle is reasonable not, frangibility in combination cover for transfusion process of manufacture.In addition, the structure and material that existing combination cover for transfusion adopts, fails to realize the optimal seal of composite cover structure and the optimal seal of injection point.
Utility model content
The purpose of this utility model is to solve the existing composite membrane of combination cover for transfusion and the irrational problem of folding handle structure, and fixing each ingredient of combination cover for transfusion and guarantee that its sealing is good better.
For solving the problems of the technologies described above, this utility model provides polypropylene draw-ring type composite cover for a kind of plastic container for infusion, and it comprises enclosing cover, plug and inner cap, and described plug is arranged between described enclosing cover and described inner cap, and described inner cap is arranged in described enclosing cover.
Further, described enclosing cover comprises upper end cover, enclosing cover sidewall and draw ring, the top of described enclosing cover sidewall is fixedly connected with the periphery of described upper end cover, form cap shape, described draw ring is fixedly attached to the upside of described upper end cover by connecting portion, the periphery of described upper end cover downside is provided with a circle groove and a circle flange adjacent with the inner side of described groove.
Further, the upside of described plug is provided with and is positioned at a upper convex edge of circle of its periphery and a circle upper groove adjacent with the inner side of described upper convex edge, and described groove engages with described upper convex edge, and described flange engages with described upper groove.
Further, described inner cap comprises upper surface and inner cap sidewall, the top of described inner cap sidewall is fixedly connected with the periphery of described upper surface, forms cap shape, and the periphery of the upside of described upper surface is provided with a circle platform portion and a circle boss adjacent with the inner side of described portion.
Further, the downside of described plug is provided with lower convex edge and the low groove with described upper convex edge and described upper groove symmetry, and described boss engages with described low groove, and described portion engages with described lower convex edge.
Further, inner side, the lower end of described enclosing cover sidewall is provided with a circle draw-in groove, and the outside, lower end of described inner cap sidewall is provided with a circle buckle, and described buckle engages with draw-in groove.
Further, in the upper end cover of described enclosing cover, being also provided with connecting portion described in ringwise two draw ring groovings is arranged between described two draw ring groovings.
Further, on described plug, be also provided with one or more contact pin depressions.
Adopt technique scheme, the beneficial effects of the utility model are: draw ring tension uniform of the present utility model is stable, during unlatching, can not tear other regions around, and draw ring intensity rationally can not rupture yet.Polypropylene draw-ring type composite cover for plastic container for infusion of the present utility model, reasonable in design, sealing is strong, intensity is high, be not easy distortion, convenient and practical, and be easy to produce, be suitable in industrial large-scale production.
Accompanying drawing explanation
Fig. 1 is the exploded view of polypropylene draw-ring type composite cover for plastic container for infusion of the present utility model;
Fig. 2 A is the cutaway view of the enclosing cover shown in Fig. 1;
Fig. 2 B is the side view of the enclosing cover shown in Fig. 1;
Fig. 2 C is the axonometric chart of the enclosing cover shown in Fig. 1;
Fig. 3 A is the cutaway view of the plug shown in Fig. 1;
Fig. 3 B is the top view of the plug shown in Fig. 1;
Fig. 3 C is the side view of the plug shown in Fig. 1;
Fig. 3 D is the axonometric chart of the plug shown in Fig. 1;
Fig. 4 A is the cutaway view of the inner cap shown in Fig. 1;
Fig. 4 B is the side view of the inner cap shown in Fig. 1;
Fig. 4 C is the axonometric chart of the inner cap shown in Fig. 1;
Fig. 5 A is the cutaway view after the assembling of polypropylene draw-ring type composite cover for plastic container for infusion of the present utility model;
Fig. 5 B is the side view after the assembling of polypropylene draw-ring type composite cover for plastic container for infusion of the present utility model;
Fig. 5 C is the axonometric chart after the assembling of polypropylene draw-ring type composite cover for plastic container for infusion of the present utility model.
Reference numeral:
1 enclosing cover; 2 plugs; 3 inner caps; 11 upper end covers; 12 enclosing cover sidewalls; 13 draw rings; 111 grooves; 112 flanges; 113 draw ring groovings; 121 draw-in grooves; 132 connecting portions; Convex edge on 21; 22 times convex edges; 23 upper grooves; 24 low grooves; 25 acupuncture treatment depressions; 31 upper surfaces; 32 inner cap sidewalls; 311 boss; 312 portions; 321 buckles.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, and be not used in restriction this utility model.
Fig. 1 shows the exploded view of polypropylene draw-ring type composite cover for plastic container for infusion of the present utility model, and described plastic container for infusion comprises enclosing cover 1, plug 2 and inner cap 3 with polypropylene draw-ring type composite cover.Described plug 2 is arranged between described enclosing cover 1 and described inner cap 3, and described inner cap 3 is arranged in described enclosing cover 1, and the concrete structure of each parts and detailed mounting means will below explained.
Fig. 2 A, Fig. 2 B, Fig. 2 C show the concrete structure of enclosing cover, and described enclosing cover 1 comprises upper end cover 11, enclosing cover sidewall 12 and draw ring 13.The top of described enclosing cover sidewall 12 is fixedly connected with the periphery of described upper end cover 11, forms cap shape.Described draw ring 13 is fixedly attached to the upside of described upper end cover 11 by connecting portion 132, wherein, draw ring 13 can be the draw ring that well known to a person skilled in the art any shape, and preferably, draw ring 13 is toroidal.The periphery of described upper end cover 11 downsides is provided with a circle groove 111 and a circle flange 112 adjacent with the inner side of described groove 111, to engage with plug 2.The inner side, lower end of described enclosing cover sidewall 12 is provided with a circle draw-in groove 121, to engage with inner cap 3.
Fig. 3 A, Fig. 3 B, Fig. 3 C, Fig. 3 D show the concrete structure of plug 2, the upper and lower side of described plug 2 is respectively equipped with and is positioned at a symmetrical 21,Xia convex edge, the upper convex edge of circle 22 of its periphery and a circle upper groove 23, the low groove 24 adjacent with the inner side difference of 21,Xia convex edge, described upper convex edge 22, to engage with enclosing cover 1, inner cap 3.
Fig. 4 A, Fig. 4 B, Fig. 4 C show the concrete structure of inner cap 3, and described inner cap 3 comprises upper surface 31 and inner cap sidewall 32, and the top of described inner cap sidewall 32 is fixedly connected with the periphery of described upper surface 31, form cap shape.The periphery of the upside of described upper surface 31 is provided with a circle platform portion 312 and a circle boss 311 adjacent with the inner side of described portion 312, to engage with plug 2.The outside, lower end of described inner cap sidewall 32 is provided with a circle buckle 321, to engage with enclosing cover 1.
Fig. 5 A, Fig. 5 B, Fig. 5 C show the concrete structure after the assembling of polypropylene draw-ring type composite cover for plastic container for infusion of the present utility model.When mounted, successively plug 2, inner cap 3 are sleeved in enclosing cover 1.Wherein, the groove 111 of enclosing cover 1 and flange 112 engage with upper convex edge 21 and the upper groove 23 of plug 2 respectively; The platform portion 312 of inner cap 3 and boss 311 engage with lower convex edge 22 and the low groove 24 of plug 2 respectively; The buckle 321 of inner cap 3 engages with the draw-in groove 121 of enclosing cover 1, so that plastic container for infusion obtains best fixing with enclosing cover 1, plug 2 and the inner cap 3 of polypropylene draw-ring type composite cover.
In addition, as shown in Fig. 3 A and 3B, on plug 2, be also provided with one or more contact pin depressions 25.Described contact pin depression 25 has reduced the thickness of plug contact pin part, chip in the time of can effectively reducing contact pin, and a plurality of depressions separate in the time of can be for transfusion or dosing contact pin, to reduce cross-contamination.
In addition, as shown in Figure 2 A, be also provided with ringwise two draw ring groovings 113 in the upper end cover 11 of enclosing cover 1, described connecting portion 132 is arranged between described two draw ring groovings 113, so that upper end cover 11 is easily drawn out.While using plastic container for infusion of the present utility model with polypropylene draw-ring type composite cover, only need pull draw ring 13, upper end cover 11 will be drawn out along grooving, plug is exposed, thereby syringe needle can be thrust to contact pin depression 25, to further pierce through the upper surface 31 of plug 2 and inner cap 3, stretch into transfusion with in medicinal liquid.Because the upper surface 31 of inner cap 3 is thinner, piercing through while being therefore conducive to contact pin, thus safety is easily more for the process of the contact pin that makes to infuse.
Preparing plastic container for infusion of the present utility model comprises the following steps by the method for the inner cap of polypropylene draw-ring type composite cover:
Step 1: by the mixture mix homogeneously of raw material and additive;
Described raw material is polypropylene, ethylene-propylene copolymer, and described polyacrylic ratio is 65%～85% weight, and the ratio of described ethylene-propylene copolymer is 15%～35% weight,
Described additive is antioxidant and plumper, described antioxidant is tricresyl phosphite (2,4-di-tert-butyl-phenyl) ester, 1,3,5-trimethyl-2,4, one or more in 6-tri-(3,5-di-t-butyl-4-hydroxyl benzyl) benzene, the positive octadecanol ester of β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid, described plumper is brucite, and the gross weight of described additive is the 0.1-0.3% of raw material gross weight;
Step 2: at 190～230 ℃, in the mixture feeding double screw extruder of step 1, extrude tie rod;
Step 3: by tie rod cooling by water to the 50 ℃ left and right of step 2;
Step 4: by cooling tie rod pelletizing, blowing is dry, obtains inner cap material;
Step 5: by inner cap material injection mo(u)lding, obtain the inner cap of polypropylene draw-ring type composite cover for plastic container for infusion of the present utility model according to inner cap shape.
Preparing plastic container for infusion of the present utility model comprises the following steps by the method for the enclosing cover of polypropylene draw-ring type composite cover:
Step 1: by the mixture mix homogeneously of raw material and additive;
Described raw material is polypropylene, ethylene-hexene-propylene copolymer, styrene-ethylene-butylene-styrene copolymer, ethylene-propylene copolymer; Described polyacrylic ratio is 45%～60% weight, the ratio of described ethylene-hexene-propylene copolymer is 5%～15% weight, the ratio of described styrene-ethylene-butylene-styrene copolymer is 3%～10% weight, the ratio of described ethylene-propylene copolymer is 20%～35% weight
Described additive is antioxidant and plumper, described antioxidant is four (3,5-di-t-butyl-4-hydroxyl) benzenpropanoic acid pentaerythritol ester, tricresyl phosphite (2,4-di-tert-butyl-phenyl) ester, 1,3,5-trimethyl-2,4,6-tri-(3,5-di-t-butyl-4-hydroxyl benzyl) benzene, β-(3,5-di-tert-butyl-hydroxy phenyl) one or more in the positive octadecanol ester of propanoic acid, described plumper is brucite, the gross weight of described additive is the 0.1-0.3% of raw material gross weight;
Step 2: at 190～230 ℃, in the mixture feeding double screw extruder of step 1, extrude tie rod;
Step 3: by tie rod cooling by water to the 50 ℃ left and right of step 2;
Step 4: by cooling tie rod pelletizing, blowing is dry, obtains outer cover material;
Step 5: by outer cover material injection mo(u)lding, obtain the enclosing cover of polypropylene draw-ring type composite cover for plastic container for infusion of the present utility model according to enclosing cover shape.
The outer cover material of polypropylene draw-ring type composite cover for the plastic container for infusion of the present utility model of preparing according to said method, draw ring tension uniform is stable, can conveniently design opening force and be less than 80N, during unlatching, can not tear other regions around, and draw ring intensity rationally can not rupture yet.
Plastic container for infusion of the present utility model is indeformable in 121 ℃ of sterilization treatment processes with polypropylene draw-ring type composite cover, invariant color, intensity are high.And in leachable experiment, the stripping of enclosing cover non-volatile matter is less than 0.6mg/100ml, and the stripping of inner cap non-volatile matter is less than 0.4mg/100ml, and safety is higher.
Plastic container for infusion of the present utility model is with polypropylene draw-ring type composite cover in using adaptability test, and puncture force performance is very even, and meansigma methods is 41N, and maximum is 45N, and comfort is very high; 3 of the puncture exfoliations of metal puncture device puncture, the puncture of plastic puncture puncture is without exfoliation, and the exfoliation performance of therefore puncturing is good.The dynamic retentivity that punctures is 6N when plastic puncture punctures, and during the puncture of metal puncture device, is 3N.Injection dot encapsulation is good.
The above embodiment has only expressed embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (8)
1. polypropylene draw-ring type composite cover for a plastic container for infusion, it is characterized in that, comprise enclosing cover (1), plug (2) and inner cap (3), described plug (2) is arranged between described enclosing cover (1) and described inner cap (3), and described inner cap (3) is arranged in described enclosing cover (1).
2. polypropylene draw-ring type composite cover for plastic container for infusion according to claim 1, is characterized in that,
Described enclosing cover (1) comprises upper end cover (11), enclosing cover sidewall (12) and draw ring (13), the top of described enclosing cover sidewall (12) is fixedly connected with the periphery of described upper end cover (11), form cap shape, described draw ring (13) is fixedly attached to the upside of described upper end cover (11) by connecting portion (132)
The periphery of described upper end cover (11) downside is provided with a circle groove (111) and a circle flange (112) adjacent with the inner side of described groove (111).
3. polypropylene draw-ring type composite cover for plastic container for infusion according to claim 2, is characterized in that,
The upside of described plug (2) is provided with and is positioned at a upper convex edge (21) of circle of its periphery and a circle upper groove (23) adjacent with the inner side of described upper convex edge (21),
Described groove (111) engages with described upper convex edge (21), and described flange (112) engages with described upper groove (23).
4. polypropylene draw-ring type composite cover for plastic container for infusion according to claim 3, is characterized in that,
Described inner cap (3) comprises upper surface (31) and inner cap sidewall (32), and the top of described inner cap sidewall (32) is fixedly connected with the periphery of described upper surface (31), forms cap shape,
The periphery of the upside of described upper surface (31) is provided with a circle platform portion (312) and a circle boss (311) adjacent with the inner side of described portion (312).
5. polypropylene draw-ring type composite cover for plastic container for infusion according to claim 4, is characterized in that,
The downside of described plug (2) is provided with lower convex edge (22) and the low groove (24) with described upper convex edge (21) and described upper groove (23) symmetry,
Described boss (311) engages with described low groove (24), and described portion (312) engages with described lower convex edge (22).
6. polypropylene draw-ring type composite cover for plastic container for infusion according to claim 5, it is characterized in that, the inner side, lower end of described enclosing cover sidewall (12) is provided with a circle draw-in groove (121), the outside, lower end of described inner cap sidewall (32) is provided with a circle buckle (321), and described buckle (321) engages with draw-in groove (121).
7. polypropylene draw-ring type composite cover for plastic container for infusion according to claim 6, it is characterized in that, in the upper end cover (11) of described enclosing cover (1), be also provided with ringwise two draw ring groovings (113), described connecting portion (132) is arranged between described two draw ring groovings (113).
8. polypropylene draw-ring type composite cover for plastic container for infusion according to claim 7, is characterized in that, is also provided with one or more contact pin depressions (25) on described plug (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320555231.XU CN203469035U (en) | 2013-09-06 | 2013-09-06 | Polypropylene pull-ring type combined cover for plastic transfusion container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320555231.XU CN203469035U (en) | 2013-09-06 | 2013-09-06 | Polypropylene pull-ring type combined cover for plastic transfusion container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203469035U true CN203469035U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320555231.XU Expired - Lifetime CN203469035U (en) | 2013-09-06 | 2013-09-06 | Polypropylene pull-ring type combined cover for plastic transfusion container |
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| CN (1) | CN203469035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106562888A (en) * | 2016-10-13 | 2017-04-19 | 苏州创扬医药科技股份有限公司 | Foldable combined cover with pressing pad |
-
2013
- 2013-09-06 CN CN201320555231.XU patent/CN203469035U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106562888A (en) * | 2016-10-13 | 2017-04-19 | 苏州创扬医药科技股份有限公司 | Foldable combined cover with pressing pad |
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Granted publication date: 20140312 |
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| CX01 | Expiry of patent term |