CN87208225U

CN87208225U - Domestic vacuum food fresh-preserving storage box

Info

Publication number: CN87208225U
Application number: CN 87208225
Authority: CN
Inventors: 徐建新; 杨孟侠
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-05-18
Filing date: 1987-05-18
Publication date: 1987-12-30

Abstract

The utility model discloses a household vacuum generation device and a vacuum container, and the vacuum container matched with the vacuum generation device is used to store food. The vacuum generation device comprises an electric motor and a vacuum pump, and the vacuum pump which is a centrifugal type vane pump with multi-stage scroll casing is connected with the electric motor arranged beneath the vacuum pump. The air inlet of the vane pump is connected with an air suction pipe by a pipe (10), and the air suction pipe arranged in a support bracket can be pressed downwards. The vacuum container is formed by a box body, a box cover and a seal valve, the seal valve arranged on the box cover is provided with a date indication disk, and the date indication disk can display the storage date.

Description

Domestic vacuum food fresh-preserving storage box

The utility model is relevant with the vacuum freshness retaining storage facility of domestic food, more particularly, relate to a kind of family expenses device for vacuum generation and with the vacuum tank of this device adapted.

Vacuum is preserved the method for food and is used widely in food industry, for example various cans etc.Adopt vacuum to preserve food, can prevent that food decay is rotten, prolong the food storage phase and keep the original nutrition of food, the characteristics of color, smell and taste.Its few advantage that consumes energy in addition with the comparison of freezer storage food.For this reason, the device for vacuum generation of various family expenses occurs in succession.At present, existing family expenses device for vacuum generation is the bag seal formula, and its profile is similar to writing case, generally adopts polybag as vacuum tank.Its structural principle basically as shown in Figure 1, mainly by motor (36), vavuum pump (37), hot sealing device compositions such as (40).During sheathing foodstuff, the polybag (20) that food is housed is inserted in bleeding point (39) puts down lid (not diagram) opening power then, starter motor (36) drives vavuum pump (37), takes out air in the bag, seals sack by hot sealing device (40) immediately and gets final product.But this family expenses device for vacuum generation is because its vavuum pump that adopts is the axial--flow blading pump, its greatest limit vacuum is generally all lower, its index only is a 70mm water column height, add and putting down lid (not having diagram) when extracting the air in the polybag (41), lid and box body, between the sack of polybag (41) and the bleeding point (39) to contact sealing relatively poor, so the vacuum after extracting in the bag is poor.So the freshness date of package storage food is shorter,, and there is the shortcoming of the food stacking inconvenience after the packing again because the food profile that adopts this method to pack is indefinite.

The purpose of this utility model realizes by following method.Food vacuum fresh-keeping and storing device of the present utility model is made up of device for vacuum generation and vacuum tank.In the device for vacuum generation of being made up of motor, vavuum pump, vavuum pump is the centrifugal vane pump of multistage spiral case, and the air inlet of the centrifugal vane pump of multistage spiral case is connected with the air intake duct that can press downwards in support by pipe.By box body, the vacuum tank that lid and seal valve are formed, the instant food storage box, seal valve is arranged on the lid, have the hole that several and spool bore connect at the upside near the spool lower surface, be enclosed within the sealing ring of transferring core lower surface upside and embed lower end at valve body, the spool of sealing ring top is with spring, valve core housing on the spring is threaded with valve body with the valve gap that being threaded of spool top is enclosed within on the valve core housing, and lid and sealing ring are clamped between the convex shoulder of the upper end of valve body and valve gap.

Domestic food vacuum freshness retaining reservoir of the present utility model is owing to separate vacuum tank and device for vacuum generation, the vacuum tank of working as the food storage box of holding concurrently can be made the series that differs in size on demand, vacuum tank can use repeatedly, and after vacuum tank damages or be aging, vacuum valve on the lid also can be pulled down, install on other box usefulness again, and each rubber seal damage or aging after, it need only be pulled down replacing to get final product; Because device for vacuum generation adopts the centrifugal vane pump of high performance multistage spiral case as vavuum pump, improved the efficient of device extracting air widely and can reach higher vacuum.Through preliminary test, its vacuum can reach more than the 1760mm water column.Like this, the user not only can select the vacuum tank of different sizes to store food as required and stacking is convenient, and behind the device for vacuum generation extracting air, the fresh keeping time of food can prolong greatly.

Brief description:

Fig. 1 is the simple structure schematic diagram of existing product;

Fig. 2 is the structural representation of present embodiment;

Fig. 3 is the structural representation of air intake duct (3);

Fig. 4 is the structural representation of vacuum tank (4);

Fig. 5 is the structure chart of seal valve (5);

The schematic diagram that Fig. 6 bleeds for polybag;

Fig. 7 is the centrifugal vane pump of multistage spiral case (a 2) schematic diagram;

Fig. 8 is date indicating dial (a 26) schematic diagram.

Below in conjunction with accompanying drawing, further specify the utility model.

With reference to Fig. 2, Fig. 3, the centrifugal vane pump of multistage spiral case (2) is arranged on motor (1) top, and middle with coupling (8) connection, the air inlet of the centrifugal vane pump of multistage spiral case (2) is connected with the air intake duct (3) that can press downwards in support (9) by pipe (10); The lower end of the seaming chuck (18) of air intake duct (3) adds the nested connection in upper end of push-down head (13); The opening (11) of seaming chuck (18) is connected with the air inlet of the centrifugal vane pump of multistage spiral case (2) by pipe (10); The Lower Half of push-down head (14) is passed the shell (15) of support (9), and its lower end is with a rubber and gives pressure head (16), is with spring (14) between the convex shoulder (17) of push-down head (13) and shell (15); The lightweight ball (12) that one indication usefulness is arranged in the inner chamber of push-down head (13).

With reference to Fig. 4, Fig. 5 is by box body (4), the vacuum tank (4) that lid (6) and seal valve (5) constitute, and seal valve (5) is arranged on the lid (6); Have the hole (27) that several and valve core hole are run through at upside near the lower surface (30) of spool (25); The sealing ring (21) that is enclosed within spool (25) lower surface (30) upside embeds the lower end in valve body (29); Be with spring (22) on the spool (25) of sealing ring (21) top; Valve core housing (24) on the spring (22) is threaded with the top of spool (25); The valve gap (23) that is enclosed within on the valve core housing (24) is threaded with valve body (29); Lid (6) and sealing ring (28) are clamped between the convex shoulder (35) of the upper end of valve body (29) and valve gap (23); Cover is put a date indicating dial (26) between the convex shoulder (31) of valve gap (23) and lid (6).

During extracting vacuum, the vacuum tank that visual food size is selected to be suitable for is placed on the collet (7) of support (9), connect power supply then, press air intake duct (3), the pressure head (16) that gives of push-down head (13) lower end compresses valve gap (23), produce sealing function owing to give the distortion of pressure head (16), stretch out the lower end of push-down head under pressure (13), presses spool (25), and spool (25) is protruded downwards, at this moment, the air of vacuum chamber (4) from the hole (27) extract out by spool bore.After deflating, one looses one's grip, and air intake duct (3) is return original position under spring (14) effect.Equally, because of the extensive together position of pressure disappearance spool (25) same valve core housing (24) under the effect of spring (22), seal valve is closed, and makes vacuum chamber keep vacuum state.

For ease of using, also has the lightweight ball (12) of an indication usefulness in the inner chamber of push-down head (13).When bleeding, the air-flow of extracting out from vacuum tank (4) holds up lightweight ball (12), take out a period of time after, when seeing that by transparent rack shell (15) and push-down head (13) lightweight ball (12) is when falling down, showing in the vacuum tank (4) has not had very air, can shut down.After finishing,, just know later the storage date of this food as long as rotate date indicating dial (26) to the arrow indication date.

For volume very big food or vacuum-packed other article of need, behind the polybag of packing into, also can adopt device for vacuum generation of the present utility model, after scheming extracting vacuum such shown in (6), the sack of being clamped polybag (32) by clip (33) seals preservation.

Claims

1, a kind of family expenses device for vacuum generation includes motor, vavuum pump, and its invention is characterised in that described vavuum pump is the centrifugal vane pump of multistage spiral case (2); The centrifugal vane pump of described multipole spiral case (2) is connected by connector with the described motor (1) that is provided with thereunder; The air inlet of the centrifugal vane pump of described multistage spiral case is connected with the air intake duct (3) that can down press in support (9) by pipe (10).

2, device machine as claimed in claim 1, it is characterized in that, the lower end of the seaming chuck (18) of described air intake duct (3) and nested connection of upper end of push-down head (13), described seaming chuck (18) is gone up and to be had and manage the opening (11) that (10) are connected, the Lower Half of described push-down head (13) is passed the shell (15) of support (9), be with spring (14) between Lu's shoulder (17) of described push-down head (13) and described shell (15), the lower end of described push-down head (13) is with gives pressure head (16), and the lightweight ball (12) of an indication usefulness is arranged in the inner chamber of described push-down head (13).

3, a kind of vacuum tank that is used to store food, include box body (4), lid (6) and seal valve (5), its invention is characterised in that, described seal valve (5) is arranged on the described lid (6), has the hole (27) that several and spool bore connect at the upside near the lower surface (30) of spool (25); The sealing ring (21) that is enclosed within described spool (25) lower surface (30) upside embeds the lower end in valve body (29); Spring (22) is enclosed within on the spool (25) of described sealing ring (21) top; The valve core housing (24) of described spring (22) top is threaded with the top of spool (25), the valve gap (23) that is enclosed within on the described valve core housing (24) is threaded with valve body (29), and lid (6) and sealing ring (28) are clamped between the convex shoulder (35) of the upper end of described valve body (29) and described valve gap (23).

4, vacuum tank as claimed in claim 3 is characterized in that, stores date indicating dial (26) and is mounted between the convex shoulder (31) and described lid (6) of valve gap (23).