CN201292074Y

CN201292074Y - Container cover

Info

Publication number: CN201292074Y
Application number: CNU2008202024570U
Authority: CN
Inventors: 吕石部
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-21
Filing date: 2008-10-21
Publication date: 2009-08-19
Anticipated expiration: 2018-10-21

Abstract

The utility model provides a container cap used for sealing the container and keeping the quality of goods in the container. The container cap is composed of a cap body, a rubber seal washer and a vacuum valve; wherein the cap body is provided with a connecting part which extends downward; the connecting part is a circular wall, and the lower edge of the wall is provided with an inward step which is connected with the seal washer; the vacuum valve is arranged in the middle part of the cap body; the periphery of the cap body can form a structure bending downwards. When in use, the container cap is buckled on the container body and the seal washer is tightly attached to the inner side wall of the container for forming sealing. The container cap has simple structure and excellent sealing effect; meanwhile, the whole container cap can be formed by secondary forming with the traditional injection molding method. The production process is greatly shortened compared with the prior art, thereby saving the resources and improving the efficiency and the yield.

Description

A kind of container cover

Technical field

The utility model relates to the lid of airtight container, particularly has the container cover of rubber gasket.

Background technology

At present, the container of with closure is widely used when depositing the small size object.Usually lid is provided with tightening seal washer, and object is dropped in the box body, and lid fastens on the box body, and the tightening seal washer of lid and inboard wall of cartridge are fitted, and forms sealing.On some common design-calculated lids, as shown in Figure 6, lid is by injection moulding, and has an outwardly open annular groove 10, and tightening seal washer is installed in this groove.The peripheral part of lid is for being bent downwardly structure, and this sweep contacts with the box body outer wall during use.This mounting means of tightening seal washer has easy, removable benefit.But exist in the time of owing to annular groove and sweep, the manufacture method that once forms lid based on injection moulding can't realize.This is because in said structure, mould can not be separated during manufacture.Therefore, above-mentioned existing manufacture method is when adopting injection molding to make lid, is formed with outwardly open annular groove, and the part injection molding mode second time that is bent downwardly of lid periphery forms on lid.That is to say that forming whole lid need be through the process of twice moulding, and the program of fitting tight pad.As seen, production procedure increases, and productive costs also correspondingly improves.

The utility model content

It is a kind of simple in structure that the utility model provides, and can adopt injection molding mode to carry out the container cover of moulding.Shortened production procedure, enhanced productivity.

The utility model cover for sealed container comprises lid, tightening seal washer and vacuum valve, and lid has the connecting portion of downward extension, and connecting portion is an annular wall, and its lower edge has inside step, connects tightening seal washer, and the outer end of tightening seal washer is a free end.

Be more preferably, in the downward one side of tightening seal washer, also generating has along the raised ring of packing ring free end closure.

Specifically, described tightening seal washer is directly to form at the connecting portion of lid by injection molding mode.

The material that forms above-mentioned tightening seal washer is a kind of of natural rubber, silaatic, buna-S or government rubber.

Further, the peripheral part of lid forms reclinate structure.

Container cover recited above can be different shapes such as square, circular, the ellipse that can be complementary with vessel or polygon.

Can produce container cover of the present utility model according to traditional injection molding, injection for the first time forms container top, and injection for the second time directly forms tightening seal washer on lid.Lid connecting portion lower edge is provided with inside step, and mould can accurately be located when being convenient to inject for the second time, and certainly, the step that is used to form tightening seal washer also can be arranged on the middle part of connecting portion, and forms inside groove at the middle part of connecting portion.As seen, because the one-shot forming of lid and the program of having lacked the fitting tight packing ring have been saved production procedure and operating personal, simultaneously, also reduced the reject rate of producing.

Form closed raised ring at the free end of tightening seal washer, when lid fastened on the vessel, seal ring was close to the container inside wall and is contacted, and forms more stable sealing effectiveness.Raised ring is set has also strengthened the intensity at packing ring edge, increase the service life.

Description of drawings

Fig. 1 is the utility model embodiment 1 block diagram.

Fig. 2 is embodiment 1 central cross-sectional view.

Fig. 3 is embodiment 2 central cross-sectional view.

Fig. 4 is the A portion enlarged drawing of Fig. 3.

Fig. 5 is embodiment 3 central cross-sectional view.

Fig. 6 is the central cross-sectional view of existing cover for sealed container.

The specific embodiment

Below in conjunction with some embodiments of the present invention are described with reference to the accompanying drawings.

Embodiment 1

As shown in Figure 2, the circular seal container, form by box body 1 and lid 2, the middle part is equipped with vacuum valve 3 in the lid, periphery is reclinate part 4, its edge contacts with the side of box body, and lid middle part and peripheral curve phase-splitting bonded assembly position are formed with the connecting portion 5 of downward extension, at the lower edge of connecting portion, it is inside step 9, connect tightening seal washer 6, its outer end is a free end, when lid fastens on the box body, the tightening seal washer K/UP, under the effect of elastic force, its edge and box body madial wall fit tightly, and form good sealing function.The vacuum valve of installing on the lid 3, by lift and press by simple motion, can realize opening and closing.

During use, lid 2 is fastened on the box body 1, close vacuum valve 3 again, then isolated fully inside and outside the container, efficiency ground keeps the article of container splendid attire not contaminated, and store food can be kept freshness especially in refrigerator.

Embodiment 2

As shown in Figure 3, Figure 4, the airtight container identical with embodiment 1, at the free end of tightening seal washer 6, downward one side, also generating has along the raised ring 7 of packing ring edge closure.When lid fastened on the box body, the tightening seal washer K/UP under the effect of elastic force, fitted tightly with the box body madial wall, and raised ring 7 also contacts with the box body madial wall simultaneously, formed sealing effectiveness.

Embodiment 3

As shown in Figure 5, the airtight container identical with embodiment 2, its lid peripheral part 8 is plane, and structure is more succinct, and sealing function and effect are outstanding equally.

More than, with reference to description of drawings embodiment of the present utility model, but the utility model is not limited only to these embodiment.For example whole be various equilateral polygon or or the airtight container of various moulding, the container cover with the utility model technical characterictic that can match is certainly also within protection domain of the present utility model.

Claims

1. a container cover comprises lid, tightening seal washer and vacuum valve, and lid has the connecting portion of downward extension, it is characterized in that, described connecting portion is an annular wall, and its lower edge has inside step, connects tightening seal washer, and the outer end of tightening seal washer is a free end.

2. according to the container cover of claim 1, it is characterized in that in the downward one side of tightening seal washer, also generating has along the raised ring of packing ring free end closure.

3. according to the container cover of one of claim 1 or 2, it is characterized in that described tightening seal washer is that direct connecting portion injection moulding at lid forms.

4. according to the container cover of one of claim 1 or 2, it is characterized in that the material of described tightening seal washer is a kind of of natural rubber, silaatic, buna-S or government rubber.

5. according to the container cover of claim 3, it is characterized in that the material of described tightening seal washer is a kind of of natural rubber, silaatic, buna-S or government rubber.

6. according to the container cover of one of claim 1 or 2, it is characterized in that the peripheral part of lid is for being bent downwardly structure.

7. according to the container cover of claim 3, it is characterized in that the peripheral part of lid is for being bent downwardly structure.

8. according to the container cover of one of claim 1 or 2, it is characterized in that described container cover is one of square, circular, the ellipse that can be complementary with vessel or polygon.

9. according to the container cover of claim 3, it is characterized in that described container cover is one of square, circular, the ellipse that can be complementary with vessel or polygon.