CN2322925Y

CN2322925Y - Vacuum can

Info

Publication number: CN2322925Y
Application number: CN 98203533
Authority: CN
Inventors: 陈雄敏
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-04-15
Filing date: 1998-04-15
Publication date: 1999-06-09
Anticipated expiration: 2008-04-15

Abstract

The utility model discloses a vacuum storage jar, comprising a jar body and a jar cover, wherein, the jar body and the jar cover are buckled, and the jar cover comprises an outer ring sleeve and an inner supporting ring. An air suction device is arranged inside a containing cavity which is formed by the outer ring sleeve and the inner supporting ring that are stacked. The air suction device is composed of one or two tubular air suction pumps, a piston, an operating rod, a one-way valve, and an airflow passage for the air suction pumps and the jar body which are communicated with atmosphere. Both sides of the air suction pumps are provided with centralizing sliding plates. The vacuum storage jar has the advantages of good sealing performance, low maintenance rate, high efficiency, long service life, convenient manufacture and material obtaining, etc. by the adoption of the one or the two tubular air suction pumps and the additional arrangement of the centralizing sliding plates on both sides of the air suction pumps. The popularization value is enhanced.

Description

Vacuum can

The utility model relates to a kind of preserving jar, the Vacuum can of especially a kind of long service life, good refreshing effect.

For keeping the fresh, dry of food or other article, usually be placed in the vacuum seal jar and preserve, in the prior art, this kind vacuum seal jar is various informative, yet all have like this, such defective, a kind of embodiment is preferably disclosed among the Chinese patent CN 2234922Y, it is bled rapidly, efficient is high, compact conformation, good looking appearance, yet, but there is the drawback of gas leakage easily, make that the article shelf-life of storing is short, and, this preserving jar also exists service life short, and deficiencies such as easy damage are being subjected to certain restriction aspect the use popularization.

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of rational in infrastructure, easily manufactured, can utilize effectively that versatile material, good airproof performance, maintenance rate are low, long service life, can guarantee the Vacuum can of result of use for a long time.

The purpose of this utility model is achieved in that Vacuum can of the present utility model, comprise tank body and cover, tank body and cover are interlocked, cover comprises outer shroud cover and interior filler ring, outer shroud cover and interior filler ring are superimposed with one heart, in the cavity volume that is built up air extractor is housed, the sidepiece of cover has the throw rod of the tolerant air extractor of window, having leakage path in the cover is communicated with tank body, the switch of releasing on the leakage path is positioned on cover top or sidepiece, air extractor wherein is by the tubulose pump bowl, the piston that has seal ring, the throw rod that is connected with piston, gas channel that check valve and pump bowl are connected with tank body and atmosphere constitutes, and check valve is positioned on the pump bowl or other positions of the gas channel that pump bowl is connected with tank body and atmosphere.

Because pump bowl of the present utility model has replaced the square of prior art by tubulose, thereby when piston is moved therein, localized wear be difficult for to take place and cause gas leakage, maintenance rate is reduced, when prolong the service life of piston, guaranteed fresh-keeping effect, and the square structure pump bowl needs accurate ultrasonic welding, equipment investment is big, and this tubular structure is made, is drawn materials conveniently, the mould less investment, and is easy to guarantee to make precision, is easy to promote.

In addition, can comprise two tubulose pump bowls in the air extractor; The both sides of pump bowl are shaped on two and set upright slide bar or set upright slide plate.

Two pump bowls can effectively utilize the space, overcome the monotubular not high defective of power deficiency, efficient of bleeding, and the pump bowl both sides are shaped on two and set upright slide bar or set upright slide plate, in the time of then can avoiding the throw rod action bias effect piston packing take place, and further strengthen result of use of the present utility model.

Like this, the utility model is set upright slide bar or is set upright slide plate by adopting one or two tubulose pump bowl and installing additional in the both sides of pump bowl, make that it has possessed good airproof performance, maintenance rate is low, efficient is high, prolong service life, make, draw materials convenient and be easy to guarantee make advantage such as precision, strengthened its generalization.

Below, with specific embodiment the utility model is further specified in conjunction with the accompanying drawings:

Fig. 1 is the schematic perspective view of specific embodiment of the utility model at the state of bleeding;

Fig. 2 is the schematic perspective view of Fig. 1 under the storing state;

Fig. 3 is the fragmentary axial cross-section of Fig. 1;

Fig. 4 is that the A-A of Fig. 3 is to view (in Fig. 4, increasing to two with the pump bowl among Fig. 3).

Referring to Fig. 1,2,3, a kind of Vacuum can of the present utility model, comprise tank body 1 and cover 2, tank body 1 is interlocked with cover 2, wherein, the lower edge vertical sectional shape of cover 2 is " recessed " font, match with the tank body upper limb (for guaranteeing leak tightness, generally being filled with seal ring in the depression of " recessed " font).Cover 2 comprises outer shroud cover 21 and interior filler ring 22, outer shroud cover 21 and interior filler ring 22 are superimposed with one heart, air extractor 3 is housed in the cavity volume that is built up, the sidepiece of cover 2 has the throw rod action of window 4 tolerant air extractors 3, having leakage path 5 in the cover 2 is communicated with tank body 1, the switch 6 of releasing on the leakage path 5 is positioned on cover 2 tops or sidepiece (being the situation that is positioned on cover 2 tops among the figure), wherein: air extractor 3 is by tubulose pump bowl 31 (being square pump bowl in the prior art), the piston 32 that has seal ring 32 ', the throw rod 33 that is connected with piston 32, the gas channel i that check valve 34 and pump bowl 31 are connected with tank body 1 and atmosphere and e constitute, and check valve 34 is positioned on gas channel i that (as shown in Figure 3) on the pump bowl 31 or pump bowl be connected with tank body and atmosphere and other positions of e.

Because pump bowl 31 of the present utility model has replaced the square of prior art by tubulose, thereby when piston is moved therein, be difficult for taking place the localized wear of square piston edges and corners, can not cause cooperating tight and gas leak phenomenon that produce between piston and pump bowl, when thereby, piston low at maintenance rate prolongs service life, guaranteed fresh-keeping effect; In addition, the suitability of the circular seal ring 32 ' of piston 32 is strong; And the square structure pump bowl needs accurate ultrasonic welding manufacture, and equipment investment is big, and this tubular structure is made, draws materials convenient and be easy to guarantee to make precision, is easy to promote.

Can comprise two tubulose pump bowls (another tubulose pump bowl 31 ' as shown in Figure 4) in the air extractor 3, two pump bowls can overcome the monotubular not high defective of power deficiency, efficient of bleeding; Two tubulose pump bowls 31 and two throw rods 33 and 33 ' of 31 ', its overhanging end can link to each other or make one, can be made into shape shown in Figure 47, is convenient to the action to pump bowl.

Referring to Fig. 4, the both sides of

pump bowl

31 or 31 and 31 ' both sides are shaped on two and set upright slide bar or set upright slide plate 8 (shown in the figure for setting upright the situation of slide plate); Set upright slide bar or set upright slide plate 8 and match for two with the outer wall w of

pump bowl

31 or 31 and 31 ', or match with the outside c of cover 2 sidepiece windows 4, in the time of can avoiding throw

rod

33 or 33 and 33 ' action like this bias effect piston packing taking place, further strengthens result of use of the present utility model.

The one or both ends of pump bowl 31 can also be equipped with or one is shaped on pump bowl end cap 311, to form an independently pump bowl.

Referring to Fig. 1,2, have loam cake 9 on the cover 2 sidepiece windows 4, at the storing state, loam cake 9 covers window 4, has guaranteed the simple and attractive in appearance of the utility model profile.

Claims

1. Vacuum can, comprise tank body and cover, tank body and cover are interlocked, cover comprises outer shroud cover and interior filler ring, outer shroud cover and interior filler ring are superimposed with one heart, in the cavity volume that is built up air extractor is housed, the sidepiece of cover has the throw rod of the tolerant air extractor of window, having leakage path in the cover is communicated with tank body, the switch of releasing on the leakage path is positioned on cover top or sidepiece, it is characterized in that: above-mentioned air extractor is by the tubulose pump bowl, the piston that has seal ring, the throw rod that is connected with piston, gas channel that check valve and pump bowl are connected with tank body and atmosphere constitutes, and check valve is positioned on the pump bowl or other positions of the gas channel that pump bowl is connected with tank body and atmosphere.

2. Vacuum can according to claim 1 is characterized in that: comprise two tubulose pump bowls in the air extractor.

3. Vacuum can according to claim 2 is characterized in that: two throw rods of described two tubulose pump bowls, its overhanging end link to each other or make one.

4. Vacuum can according to claim 1 and 2 is characterized in that: the both sides of pump bowl are shaped on two and set upright slide bar or set upright slide plate.

5. Vacuum can according to claim 4 is characterized in that: set upright slide bar or set upright slide plate and match with the pump bowl outer wall for two, or match with cover sidepiece window wall.

6. Vacuum can according to claim 1 is characterized in that: the pump bowl end is equipped with or one is shaped on the pump bowl end cap.

7. Vacuum can according to claim 1 is characterized in that: have loam cake on the cover sidepiece window.

8. Vacuum can according to claim 1 is characterized in that: the lower edge vertical sectional shape of cover is " recessed " font, matches with the tank body upper limb.