CN201079561Y

CN201079561Y - Combination sealed cover

Info

Publication number: CN201079561Y
Application number: CNU2007200816373U
Authority: CN
Inventors: 喻涛
Original assignee: CHENGDU PUSH MEDICAL PLASTICS PACKAGING Co Ltd
Current assignee: CHENGDU PUSH MEDICAL PLASTICS PACKAGING Co Ltd
Priority date: 2007-10-26
Filing date: 2007-10-26
Publication date: 2008-07-02
Anticipated expiration: 2017-10-26

Abstract

The utility model discloses a combined sealing cover which is applicable to the sealing of flexible packagings such as infusion containers, plastic injection bottles and so on. The utility model consists of an upper cover (10), a base (20) and an elastic strip (30). The top of the base (20) is provided with a convex ring (21) protruding upward, and the inner wall (21 a) of the convex ring (21) is coordinated and connected with the peripheral surface (30 a) of the elastic strip (30). The base (20) and the elastic strip (30) are injection molded through two materials and are integrated into a whole. The utility model has the advantages that the structure is simplified, the assembling procedures and the consumption of modified polypropylene material can be reduced to the largest extent, thereby lowering the manufacturing cost of the combined sealing cover to the largest extent. In addition, no rubber sealing gasket is adopted and the upper cover, the base and the elastic strip all can be recycled or treated without harmlessness after being used, thereby more complying to the requirement of environment protection.

Description

Combined sealed cap

Technical field

This utility model relates to seal cover, particularly a kind of combined sealed cap that is used to seal infusion vessel, injection plastic bottle.

Background technology

Infusion vessel, injection plastic bottle adopt flexible package more and more, and as transfusion bag or the infusion bottle that adopts medical plastic to make, its port all needs to adopt the seal cover sealing.Existing combined sealed cap is structurally many to be made of by assembling one group of loam cake, seal gasket and base, base is nested in the loam cake, seal gasket is clamped on loam cake inner top surface and the base between the end face, the port welding of base lower surface and infusion vessel, medicine bottle.

There is following deficiency in existing combined sealed cap:

Seal gasket adopts elastomeric material to make, can't recycling after the use, also be not easy to carry out harmless treatment, and easily cause environmental pollution.Remove this part, because loam cake, base adopt the modified polypropylene material injection mo(u)lding more, therefore concerning most manufacturer, seal gasket can only be purchased as cooperation part, before assembling, need the seal gasket sterilization processing that carries out disinfection, and to just can finish assembling in two steps, efficient is low, and these all can increase the production cost of combined sealed cap undoubtedly;

The seal gasket complex structure, seal gasket was pressed on by end face on the base in the bulge loop of upper process by the loam cake inner top surface after assembling was finished, for easy to assembly, the annular perisporium of seal gasket and the inwall matched in clearance of this bulge loop main rely on that the incompatible realization of close-fitting seals between the axial notch that is opened in the seal gasket surface and the corresponding flange that is arranged on the base top surface;

Syndeton between loam cake, the base is comparatively complicated.Adopt nested interface arrangment between loam cake and the base, on the loam cake inwall some locking tooths need be set, the radially snap ring of evagination then need be set on the base outer peripheral face.Such syndeton has increased the difficulty of injection mo(u)lding, and the large usage quantity of modified polypropylene material, and difference is unfavorable for reducing the production cost of combined sealed cap.

The utility model content

Technical problem to be solved in the utility model provides a kind of combined sealed cap, and it can not only farthest reduce installation step, and helps reducing the production cost of combined sealed cap.

The technical scheme that its technical problem that solves this utility model adopts is: combined sealed cap of the present utility model, include loam cake, base and flexure strip, it is characterized in that: the top of described base has the bulge loop to upper process, the inwall of this bulge loop is connected with the annular side face tight fit of flexure strip, and described base, flexure strip is by two material injection mo(u)ldings and connect as one.

After taking abovementioned technology, because base, flexure strip is by two material injection mo(u)ldings and connect as one, only loam cake need be connected with base and can finish assembling, and loam cake, flexure strip and base all can be finished the Sheng injection mo(u)lding easily in the disinfection environment, therefore can farthest reduce installation step, and reduce the production cost of combined sealed cap.

As a kind of optimal way of the present utility model, for further reducing production costs the annular top surface welding of the annular bottom surface of described loam cake and base.The welding mode can farthest be simplified the structure of loam cake, base, and reduces the consumption of modified polypropylene material.

The beneficial effects of the utility model are that designs simplification can farthest reduce the consumption of installation step and modified polypropylene material, thereby farthest reduces the production cost of combined sealed cap; Do not use rubber gasket, use back loam cake, base and flexure strip all can easily recycle or carry out harmless treatment, therefore compliance with environmental protection requirements more.

Description of drawings

This description comprises following five width of cloth accompanying drawings:

Fig. 1 is the decomposition texture sketch map of this utility model combined sealed cap;

Fig. 2 is the structural representation of the assembled state of this utility model combined sealed cap;

Fig. 3 is the structural representation of loam cake in this utility model combined sealed cap;

Fig. 4 is the structural representation of flexure strip in this utility model combined sealed cap;

Fig. 5 is the structural representation of base in this utility model combined sealed cap.

Parts, toponym and pairing labelling among the figure: loam cake 10, reducing thin groove 11, draw ring 12, annular bottom surface 13, base 20, bulge loop 21, inwall 21a, annular top surface 22, flexure strip 30, annular side face 30a, puncture pit 31.

The specific embodiment

Below in conjunction with drawings and Examples this utility model is further specified.

See figures.1.and.2, combined sealed cap of the present utility model includes loam cake 10, base 20 and flexure strip 30.The top of described base 20 has the bulge loop 21 to upper process, and the inwall 21a of this bulge loop 21 is connected with the annular side face 30a tight fit of flexure strip 30, and described base 20, flexure strip 30 is by two material injection mo(u)ldings and connect as one.Only loam cake 10 need be connected with base 20 during assembling and get final product, because loam cake 10, flexure strip 30 and base 20 all can be finished the Sheng injection mo(u)lding easily in the disinfection environment, therefore can farthest reduce installation step, and reduce the production cost of combined sealed cap.The thermoplastic elastomer (s) that described flexure strip 30 preferably adopts is made, and does not use rubber gasket, and use back loam cake 10, flexure strip 30 and base 20 all can easily be recycled or carry out harmless treatment, therefore more meet the needs of environmental protection.

With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 5, for further reducing production costs the annular bottom surface 13 of described loam cake 10 and annular top surface 22 weldings of base 20.The welding mode can farthest be simplified the structure of loam cake 10, base 20, and reduces the consumption of modified polypropylene material.

With reference to Fig. 1, Fig. 2 and Fig. 3, use for convenient, have annular reducing thin groove 11 on the end face of described loam cake 10, reducing thin groove 11 inboards are provided with column, and the upper end of this column is connected with draw ring 12.When transfusion or injection, can easily loam cake 10 summit portions in the reducing thin groove 11 be torn off, flexure strip 30 upper surfaces are exposed by lifting draw ring 12.With reference to Fig. 1 and Fig. 4, the upper surface of described flexure strip 30 should be laid with one or more puncture pits 31 usually.

Some principles of the above this utility model combined sealed cap that just explains through diagrams, be not be this utility model combined sealed cap to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that this utility model is applied for.

Claims

1. combined sealed cap, include loam cake (10), base (20) and flexure strip (30), it is characterized in that: the top of described base (20) has the bulge loop (21) to upper process, the inwall (21a) of this bulge loop (21) is connected with annular side face (30a) tight fit of flexure strip (30), and described base (20), flexure strip (30) is by two material injection mo(u)ldings and connect as one.

2. combined sealed cap as claimed in claim 1 is characterized in that: annular top surface (22) welding of the annular bottom surface (13) of described loam cake (10) and base (20).

3. combined sealed cap as claimed in claim 1 is characterized in that: have annular reducing thin groove (11) on the end face of described loam cake (10), reducing thin groove (11) inboard is provided with column, and the upper end of this column is connected with draw ring (12).

4. combined sealed cap as claimed in claim 1 is characterized in that: the upper surface of described flexure strip (30) is laid with puncture pit (31).

5. as any described combined sealed cap of claim 1 to 2, it is characterized in that: described flexure strip (30) adopts thermoplastic elastomer (s) to make.