CN2254881Y

CN2254881Y - Vacuum container with means for displaying the vacuum

Info

Publication number: CN2254881Y
Application number: CN 96201442
Authority: CN
Inventors: 昌金铭; 钱震刚
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-01-09
Filing date: 1996-01-09
Publication date: 1997-05-28
Anticipated expiration: 2006-01-09

Abstract

The utility model relates to a vacuum vessel, particularly a vacuum household vessel for displaying the vacuum degree. The utility model provides a vacuum vessel which can reflect the vacuum degree, and a complicated vacuum display device does not need to be arranged additionally. The utility model is characterized in that a film piece which is in the shape of a bowl and is made of an elastic material is arranged on the vessel body. When the vessel is pumped into vacuum, the film piece is recessed towards the direction of the cavity inner along with the reduction of the gas pressure in the cavity. The deeper the film piece is recessed, the large the vacuum degree is, and vice versa. The vacuum vessel can be widely applied to the storage of food, cultural relics, seeds, lenses, medicine, etc.

Description

The vacuum utensil that the band vacuum shows

The utility model relates to a kind of vacuum utensil, particularly shows the vacuum utensil of degree of vacuum.

Existing vacuum utensil is made of vessel cavity, vessel lid and check valve.The check valve of lip or valve block formula is housed on the vessel lid, has a special-purpose pump bowl to be enclosed within on the check valve and bleed, thereby form vacuum, seal with seal ring between vessel lid and the vessel cavity.Because above-mentioned check valve is a movable parts, should consider that sensitivity considers leak tightness again, so the difficulty of making, assembling is bigger, and easily produce and reveal, cause vacuum failure, difficult again discovery after the vacuum failure, the out-of-service time is long, just lose the meaning of vacuum preservation, thereby hindered the application and the development of vacuum utensil.Vacuum indicator both just had been housed on vacuum utensil or had been furnished with a transparent display that is communicated with the vessel inner chamber and shown degree of vacuum, but the vacuum preservation of some article does not in daily life generally need degree of vacuum very accurately, and making these degree of vacuum read out instruments can increase manufacture difficulty and cost undoubtedly.

The purpose of this utility model provides a kind of degree of vacuum height that can reflect and does not set up the vacuum utensil of complicated degree of vacuum read out instrument again, to guarantee the general vacuum preservation to article.

For achieving the above object, the utility model covers at vessel a diaphragm has been installed, and a check valve is arranged at the top of diaphragm, and the two is connected as a single entity.The vessel lid is provided with the diaphragm seat, and diaphragm is fixed on the diaphragm seat.The diaphragm inner chamber that is surrounded by diaphragm and diaphragm seat communicates with the vessel inner chamber by the aperture on the diaphragm seat.The utility model comprises the vessel body that is made of lid and cavity, and is located at the check valve on the vessel body, it is characterized in that described vessel body is provided with diaphragm seat and the diaphragm that is fixed on this diaphragm seat, has a hole that communicates with the vessel inner chamber on the diaphragm seat.Its feature of described vacuum utensil is that also diaphragm and check valve are connected as a single entity.Be provided with elastic ring between diaphragm and the diaphragm seat.Elastic ring is spring also.Check valve is the taper of butt side, cuts a seam that communicates with the diaphragm inner chamber above.Check valve is hole pearl formula check valve also.

The utility model relies on the diaphragm inside and outside differential pressure, reflects the height of degree of vacuum with the raised or sunken degree of diaphragm.Other can show the vacuum utensil of degree of vacuum to this vacuum utensil relatively, its manufacture craft is simple, be easy to promote, can be widely used in the preservation of food, medicine, seed, camera lens, historical relic etc., for the vacuum preservation of above-mentioned article, the utility model is enough to judge by the storage article whether meet the preservation requirement.

Fig. 1 is a structure cutaway view of the present utility model.

Fig. 2 is the structure cutaway view of the utility model after vacuumizing.

Fig. 3, Fig. 4 are respectively embodiment accompanying drawing of the present utility model.

Below in conjunction with drawings and Examples, the utility model is further described.

With reference to Fig. 1: vessel lid of the present utility model mainly comprises three parts, and a part is lid 4 and diaphragm seat 3, and the two is connected as a single entity; A part is made up of check valve 6, diaphragm 7, elastic ring 9, and they are by making with a kind of elastomeric material, and is connected as a single entity; Third part is the relief cover 5 that covers on the check valve.As seen from the figure, diaphragm 7 fastened nuts 8 are fixed on the diaphragm seat 3, and the diaphragm inner chamber 10 that is surrounded by diaphragm 7, check valve 6, diaphragm seat 3 communicates with vessel inner chamber 12 by the aperture on the diaphragm seat 11.One seal ring 2 is arranged between vessel lid 4 and the vessel cavity 1.

In use, take off relief cover, bleed by check valve 6 with pump bowl, along with the increase of inside and outside differential pressure, diaphragm 7 sink gradually, as shown in Figure 2.Time one is long, and vacuum lost efficacy gradually, and under the effect of diaphragm elastic force, diaphragm is projection gradually, thereby can be found, and in time bleeds.But in the said process after vacuum lost efficacy, make diaphragm 7 rely on self elastic reset, to having relatively high expectations of diaphragm material, this has just strengthened difficulty and the cost made, therefore, be provided with an elastic ring 9 between diaphragm and diaphragm seat, elastic ring and diaphragm can be one, and use with a kind of elastomeric material and make.After the vacuum failure, in the elastic force deficiency of diaphragm 7 so that diaphragm 7 when resetting, can make diaphragm 7 reset by the elastic force of elastic ring.

Accompanying drawing 3 is to substitute the example of going up the elastic ring in the example with a spring 14.

Accompanying drawing 4 is another embodiment of the present utility model, be that check valve 6 of the present utility model can substitute with another kind of hole pearl formula check valve, its structure is: have an aperture 16 at the diaphragm top and communicate with diaphragm inner chamber 10, there is a ball 15 to be pressed on the aperture 16, when bleeding, ball 15 is picked up, and the air in the vessel inner chamber 12 is drawn out of through aperture 16.Bleed finish after because pressure reduction, ball 15 is crushed on the aperture 16, thereby plays the effect of unidirectional air guide.

Claims

1. a vacuum utensil that dashes the demonstration of band vacuum comprises the vessel body that is made of lid (4) and cavity (1), and be located at check valve (6) on the vessel body, it is characterized in that described vessel body is provided with diaphragm seat (3) and is fixed on diaphragm (7) on this diaphragm seat, has an aperture (11) that communicates with vessel inner chamber (12) on the diaphragm seat.

2, vacuum utensil as claimed in claim 1 is characterized in that described diaphragm (7) can be connected as a single entity with check valve (6).

3, vacuum utensil as claimed in claim 1 is characterized in that being provided with elastic ring (9) between diaphragm (7) and the diaphragm seat (3).

4,, it is characterized in that described elastic ring (9) can be spring (14) as claim 1 or 3 described vacuum utensils.

5, vacuum utensil as claimed in claim 1 or 2 is characterized in that described check valve (6) can be the taper of butt side, cuts a seam (13) that communicates with diaphragm inner chamber (10) above.

6, a kind of vacuum utensil as claimed in claim 1, the described check valve of its feature (6) be hole pearl formula check valve also.