CN204393278U - A kind of food security antistaling container reducing nitrite and increase - Google Patents
A kind of food security antistaling container reducing nitrite and increase Download PDFInfo
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- CN204393278U CN204393278U CN201420797643.9U CN201420797643U CN204393278U CN 204393278 U CN204393278 U CN 204393278U CN 201420797643 U CN201420797643 U CN 201420797643U CN 204393278 U CN204393278 U CN 204393278U
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Abstract
The utility model provides a kind of food vacuum safe antistaling container, which comprises at least container body, aspiration pump and pressure relief device; Described aspiration pump is default work stop condition is the aspiration pump reaching 3.8-6.9inHg vacuum in container body.Vacuum fresh-retaining container described in the utility model can control internal vacuum and remain in the scope of 3.8-6.9inHg, make the food nitrite be placed in one produce speed significantly to reduce, more excellent food security preservation effect can be realized with more simple structure.
Description
Technical field
The utility model relates to a kind of save set of food.
Background technology
The food that we take food every day or dish are except containing except multiple nutritional components, and we are concerned about especially to also have two things here: nitrate and microorganism.Do so how nitrate and microorganism enter in food? in agricultural fertilizer process, the particularly use of nitrate fertilizer, makes plant and animal group food raw material be enriched nitrate in growth course; Raw-food material contacts with personnel etc. with water, air, soil, means of transport in growth course, unavoidably can indirectly or directly by various microbial cross-contamination; Food processing process is as butchered, cleaning, cut, cook, heat and microorganism can not all be removed or all kill to the method such as packaging; People are while enjoyment cuisines, and the microorganism in air also can drop in food, if do not use lamp for public dinner service also the microorganism in oral cavity to be brought in dish.Due to these reasons above-mentioned, there is nitrate in processing or unprocessed food and residual or parasitic diversified microorganism, so leftovers is no exceptionly containing nitrate and microorganism.Report for work according to document, leftovers food just can measure nitrite after using common crisper to preserve 6 hours in refrigerator.How does nitrite so in leftovers generate? we know and to classify to the demand of oxygen by microorganism, can be divided into aerobic (completely aerobic and micro-aerobic) and anaerobism (tolerance of incomplete anaerobism, aerobic and completely anaerobism) microorganism; By microbe survival temperature classifications, cold, the normal temperature of happiness and happiness high temperature three class can be divided into.No matter be at normal temperature or at low temperatures, no matter be under aerobic or the condition in anoxic, certain micro-organisms can both growth and breeding produce a kind of material as biocatalyst reductase.When the nitrate in food is subject to the effect of reductase, just nitrate transformation can be become nitrite, the origin reason of particularly leftovers food nitrite in Here it is food.
The relation of environment vacuum degree (also can reflect the oxygen content in environment) and microbe colony sum under lower temperature conditions can be found out by following data.Assay method is that the Chinese cabbage fried (adding brine concentration is 4%) is at room temperature cooled 1 hour, loaded in the crisper of different vacuum, be positioned over (4-5 DEG C) storage in refrigerator, measure after 24 hours and fry total plate count in Chinese cabbage, the results are shown in Table 1.
Under the different vacuum of table 1 cryopreservation stir-fry Chinese cabbage in total plate count
| Vacuum | 5inHg | 10inHg | 15inHg | 20inHg |
| Total plate count | 1.04×10 5 | 0.91×10 5 | 0.33×10 5 | 0.63×10 5 |
As can be seen from Table 1, to fry in Chinese cabbage microbe colony sum not because (vacuum now has caused the rigid distortion of the container of food-grade PP or PE material) would not breed when vacuum reaches very high 20inHg, total plate count still has 0.63 × 10
5, also detected very high content of nitrite simultaneously.
Be at present to impel low Ferri-hemoglobin in blood to be oxidized to ferrihemoglobin to the main understanding of nitrite, lose the function of fortune oxygen, cause tissue and organ hypoxia, occur intoxicating phenomenon, the heavy then life security of entail dangers to people.The nitrite of long-term excessive amount may increase the risk suffering from the diseases such as the cancer of the esophagus, cancer of the stomach, liver cancer and colorectal cancer.It is reported, 300-500mg nitrite can cause human body poisoning, human body can be made dead if eat 3 grams of nitrite.China has formulated strict limit standard for the remnant nitrite in food, the residual quantity≤30mg/kg of national food safety standard " food additives use standard GB2760-2011 " Sodium Nitrite.
Can so leftovers (dish overnight) food be eaten on earth? the researchers such as associate professor Shen Jianfu of Zhejiang University's biosystem engineerings in 2011 and Food Science institute, have asked the cook of the well-known medium-to-high grade chain restaurant in one, Hangzhou to burn 4 dishes: fried green vegetables, leek scrambled egg, pork braised in brown sauce and stewed crucian with brown sauce.After 4 dishes are burned, put into 4 crispers respectively.Each dish is divided into 4 parts by experimenter, is respectively charged into once-used degradeable cutlery box, after wrapping preservative film, these samples is put into 4 DEG C of refrigerator cold-storages, and this temperature is also the temperature that normal domestic use refrigerator is arranged.Then testing crew to take the dish out of the pot half an hour, the refrigeration sample determination content of nitrite of 6 hours, 18 hours, 24 hours to cooking respectively.Result is: half an hour after taking the dish out of the pot, the content of nitrite of fried green vegetables, leek scrambled egg, these three dishes of pork braised in brown sauce does not all exceed the most ceiling value of China's " pollutants in food limit standard ", i.e. greengrocery 4mg/kg, meat 3mg/kg (note: mg milligram, kg kilogram).The measurement result of refrigeration after 6 hours finds, fried green vegetables adds 16%, and leek scrambled egg adds 6%, and pork braised in brown sauce adds 70%.Wherein, pork braised in brown sauce nitrite reaches 4.2558mg/kg, has exceeded the limit standard of " meat 3mg/kg " in country's " pollutants in food limit standard ".After 18 hours, testing result finds, fried green vegetables nitrite amplification is very large, and add 443% time less than 6, stewed crucian with brown sauce adds 54%, and leek scrambled egg adds 47%, and the change of pork braised in brown sauce nitrite is little.The testing result of 24 h refrigeration finds, compared with 18 hours, 4 dish content of nitrite continue significantly to increase, and the regulation all exceeded in " pollutants in food limit standard ", wherein fried green vegetables exceeds standard 34%, leek scrambled egg exceeds standard 41%, and pork braised in brown sauce exceeds standard 84%, and stewed crucian with brown sauce exceeds standard 141%.Can learn from above-mentioned testing result, leftovers food nitrite is mainly from preservation process.
The stored refrigerated of current family cooking food mainly contains following four kinds of modes: food moves into in the container of lid by (1); (2) on splendid attire dish (as leftovers) plate (or container), preservative film is added a cover; (3) dish food is moved into storage in the crisper (container) of band sealing ring; (4) food is put into vacuum crisper or vacuum fresh-keeping bag.Then the dish food (as leftovers) of above-mentioned process is put into 0-8 DEG C of refrigerator to preserve until next time eats.The first and the second processing mode are more original and traditional food refrigerator store methods, and the third common antistaling container and the 4th kind of vacuum fresh-retaining container processing method are the houshold refrigerator food fresh-keeping methods occurred in recent years.Here mainly compare research for latter two antistaling container technology and product.The third common crisper technology existing and product are just to preventing food taint of odour and keeping the aspects such as the humidity of food to have certain effect, substantially the modified version of first two store method is belonged to, that is general nutritive value and the mouthfeel needs of food are only maintained, the oxidizing process of food is still underway, and nutrient component damages (as vitamin C) is also comparatively serious.At present the 4th kind of store method on the market and product form internal tank vacuum by vacuum extractor or by extruding lid, their principle be air by extracting or get rid of in container thus the method reducing oxygen content solve food short-term prevent putrid and deteriorated, prevent oxidation stain spoiled and prevent the problems such as nutrient component damages.The large small intensity of vacuum due to these " vacuum crispers " be uncertain, be unknowable, be random operation, be under suspicion so preserve the security of food.Because these products do not consider implemented vacuum intensity and the relations problems of foodsafety when designing, as long as think vacuum suction and eliminating oxygen, no matter its result of size implementing vacuum must be just front, positive, advantage, the effect of " fresh-keeping " just can be played to food by aspirator vacuum.As can be seen here, traditional sense and masses' cognition generally believe that vacuum is more high and is more conducive to the preservation of food in refrigerator, the higher preservation of vacuum food out more " fresh ".Can prove that this idea may exist certain one-sidedness from a large amount of test datas.This is because have ignored an important considerations in the design concept of existing " vacuum crisper ", that is exactly: in the environment of vacuum hypoxemia, microaerophile and anaerobe still can growth and breedings, and anaerobe may speed that is larger to the destruction of food than aerobe, that produce harmful components faster.Such as the generation speed of the large small intensity of vacuum to nitrite just has a certain impact, we need vacuum degree control namely can reduce nitrite generating rate in certain scope, can also preserve other nutritional labeling simultaneously.Very unfortunately above-described leftovers foodstuff preserving method and product do not stand in the safety preservation problem that such understanding highly solves the leftover meal of our three meals in a day, what bring therefrom is that people are on the feed by sealing the food of " fresh-keeping " or the preservation of vacuum " fresh-keeping " method simultaneously, may eat its method defect and bring unsound harmful substance, its consequence is the infringement caused on health.The food that or vacuum crisper fresh-keeping by existing sealing is preserved in other words also exists food security potential problem.Therefore, we have a responsibility for carrying out deep exploration and research to above-mentioned hidden danger and problem, improve prior art and improve existing product, the guiding correct to consumer one and satisfied solution.Also do not retrieve at present the bibliographical information about vacuum and nitrite variation relation, do not retrieve yet and utilize vacuum technique to control the food particularly research contents that increases at freezer storage process nitrite of leftovers food.
As everyone knows, food material through culinary art or heat after tissue become soft rotten, be easy to digestion, because animal and plant cells is added heat damage, himself immune system is lost, and such food more holds to grow and propagate microorganisms compared with fresh food materials.According to common way, to wait for that dish is cooled to indoor temperature (about 20 DEG C) just can proceed in crisper after people's feed, whole process approximately needs 1 to 2 hour time, moves in 0-8 DEG C of refrigerator again after sealing, again eats after being preserved by 4-48 hour or longer time.When eating and cool and in the preservation process of refrigerator, the process that microorganism also starts pollution, grows and breed.Behind Refrigerator store 4-48 hour or longer time, nitrite is reduced under the reductase effect that nitrate in food is secreted in some Institute of Micro-biology, this process does not stop because of the low temperature of refrigerator cold-storage, only reaction speed slows down, and this explains the cooking of 4 kinds, above-mentioned Hangzhou after 24 h refrigeration, finds the reason that nitrite exceeds standard.The utility model increases this harm as leftovers food at storage nitrite for food and proposes, its technical solution is by a kind of controlled vacuum technique application process, sets up the display of vacuum intensity and stops design apparatus effectively reducing the food particularly leftovers food food security potential problem preserving process nitrite and increase.
In prior art, the cognition of people only rests on the impact that vacuum environment may produce for the storage of food, but best food storage effect can be brought for vacuum what-the-hell, not clear and definite understanding, does not more recognize that higher vacuum may bring bad result.The present inventor conducts in-depth research rear discovery to the relation in food storage process between vacuum and nitrite generation, and for the vacuum storage of food, not vacuum is more high better; Too low or too high vacuum is all unfavorable for the generation suppressing nitrite in food, and higher vacuum process may be preserved food than common normal pressure and be brought worse impact and change.Inventor finds through overtesting, can effectively suppress vacuum calculated value that food nitrite produces within the scope of 3.77-6.95inHg; Food to be evacuated in such scope and when refrigerator 4-5 DEG C of storage, nitrite in food produces speed significantly lower than the food do not vacuumized or preserve under other vacuum degree condition, eats the preserved food products obtained by this quadrat method safer and healthy.
Utility model content
The purpose of this utility model is: based on the above-mentioned discovery of inventor, provides a kind of food holding apparatus that can reduce nitrite and increase.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
There is provided a kind of vacuum to ensure safety fresh container, which comprises at least container body, aspiration pump and pressure relief device; Described aspiration pump is default work stop condition is the aspiration pump reaching 3.8-6.9inHg vacuum in container body.
In vacuum safety antistaling container described in the utility model, described container body is sealable hollow object, its shape can be the acceptable shape of any food storage, such as, can be any one in circular in cross-section, square or polygonal bowl, basin, cup, bucket, dish or box; Described container body can form the assembly of interior sealed space after at least comprising two mutual assemblings, two described assembly materials can be identical, also can be different, and selectable material comprises food-grade transparent material, glass, pottery or the stainless steels etc. such as PP, PE.In the preferred a kind of scheme of the utility model, described container body circular in cross-section, be made up of upper and lower two parts assembly, two parts assembly junction is provided with gasket structure, and the described assembly of two parts is up and down threaded connection or buckle connection makes inner formation seal cavity.
In vacuum safety antistaling container described in the utility model, the agent structure of described aspiration pump can be the acceptable various aspiration pump of food containers in prior art, such as drawing and pulling type, squash type or centrifugal etc. multiple, both can be electronic, also can be manual, both can be extraction type vacuum cylinder or motor-driven hand-held vavuum pump; Also can be lid-pump integrated push type aspiration pump.In the utility model, preferred aspiration pump is Manual press aspiration pump, preferably include bleed storehouse and two Non-return air valves of bleeding on storehouse of the container body wall described in embedding further, one of them Non-return air valve is positioned at top, storehouse of bleeding, be communicated with bleed storehouse and space outerpace and the externally unidirectional opening in space, another Non-return air valve is positioned at bottom storehouse of bleeding, and is communicated with that storehouse of bleeding is inner to be opened to storehouse of bleeding is inner unidirectional with container body.Described storehouse of bleeding can change internal capacity by elastic deformation, and warehouse of such as bleeding directly adopts elastomeric material, or on pressing direction, arranges Compress Spring in the storehouse of bleeding of non-elastic material.Described two Non-return air valves of bleeding on storehouse can be formed by shutter device by attachment on through hole; Described can shutter device can be the elastic flexible material sheet being in valve open sides, such as silica gel piece; Also can be the one-way valve assembly being positioned at described through hole.
Described spring can select nonmetal or nonmagnetic substance processing and fabricating, makes overall container (lid and container body) can put into micro-wave oven safe heating.
In the preferred a kind of scheme of the utility model, described aspiration pump top arranges aspiration pump removable cover, crown center position, storehouse of bleeding described in described aspiration pump removable cover is in, and described Non-return air valve B is in the centre position of described aspiration pump removable cover; Described aspiration pump removable cover edge arranges latch, and opposite edges arrange key; Aspiration pump removable cover pushes up clamping by latch and key and storehouse of bleeding; The described Cang Ding of bleeding and removable cover connecting portion arrange removable cover sealing ring.When vacuum fresh-retaining container uses, removable cover covers tightly sealing, and after finishing using, aspiration pump removable cover can be dismantled, for manual cleaning or dishwasher aspiration pump inside.Also quick Interface design scheme connection push type aspiration pump and container lid can be selected so that both separation cleanings, the container lid in quick interface has a seal groove, in groove, be provided with sealing ring.
In the most preferred scheme of one of the present utility model, described vacuum fresh-retaining container is specifically made up of container body, aspiration pump, vacuum display unit and relief valve;
Described container body is made up of the lid of top and the box of below, described lid is provided with inside depression, container body surface in depression has through hole A, be provided with aspiration pump above through hole A, in depression, aspiration pump comprises the Compress Spring pressing in the storehouse of bleeding of hollow, Non-return air valve A, Non-return air valve B and storehouse of bleeding and direction is arranged; Described Non-return air valve A is made up of the unidirectional shutter device on through hole A and through hole A, and Non-return air valve A is communicated with, and storehouse of bleeding is inner to open to storehouse of bleeding is inner unidirectional with container body; Described Non-return air valve B is made up of the through hole B at top, storehouse of bleeding and the unidirectional shutter device be attached on through hole B, Non-return air valve B is communicated with bleed inside and outside space, storehouse and the externally unidirectional opening in space; With depression basal surface compact siro spinning technology bottom described storehouse of bleeding;
Described vacuum display unit comprises the elastic membrane being in container body and the column protruded perpendicular to elastic membrane and from the through hole C on container body surface container body; Column bottom surface and elastic membrane center compact siro spinning technology; Elastic membrane area is significantly greater than through hole C, elastic membrane edges close connecting container body inner surface, is strictly isolated in space residing for container body space and column;
Air flue is had to be communicated with between described through hole A and elastic membrane, residing for air flue and column, space is strictly isolated by elastic membrane, gap is there is between airway walls and elastic membrane, and have through hole D at the positive launching position of elastic membrane in airway walls, i.e. through hole D, air flue and through hole A connection container body inside and storehouse of bleeding.
In vacuum fresh-retaining container described in the utility model, described vacuum display unit is used for expressing the vacuum intensity size (3.8-6.9inHg) in effective range implemented.This display unit can be the column of above-mentioned column representative, also can be the display liquid form of expression or the pointer form of expression.Described column can also arrange scale on surface further, to show the vacuum in container body intuitively.
In the preferred vacuum fresh-retaining container of the utility model, described elastic membrane is provided with plunger type projection further, described plunger type projection just to through hole D and and through hole D specification coincide.
In vacuum fresh-retaining container of the present utility model, described elastic membrane is existing product, such as, can be have viscoelastic macromolecule polymer material, and self can along with stress generation elastic deformation.When manufacturing vacuum fresh-retaining container described in the utility model, can by method of the prior art, according to the deformation that the specific nature of elastic membrane material can produce as elastic membrane when description of materials, gauge and size determine to produce in container body any vacuum within the scope of 3.8-6.9inHg, and then determine the displacement to container body retraction that column can produce to arrange the gap length between elastic membrane and airway walls with reference to this displacement.Like this, when reaching any vacuum within the scope of default 3.8-6.9inHg in container body, elastic membrane is enough to blocking through hole D by deformation, thus in blocking-up container body, air, to the flowing of aspiration pump, namely stops the user of the utility model vacuum fresh-retaining container to continue to vacuumize.
The automatic stopping pumped vacuum systems arranging at aspiration pump described in the utility model, being suitable for very much Motorized vacuum crisper, Motorized vacuum bag sealer or electric vacuum packing machine, automatically closing vavuum pump to guarantee a kind of food security preservation requirement reducing nitrite and increase by arriving effective 3.8-6.9inHg vacuum ranges.
Compared with existing vacuum fresh-retaining container, safe antistaling container vacuum strength of the present utility model can be tightly controlled the vacuum ranges at 3.8 ~ 6.9inHg, instead of takes fresh-keeping food by processing uncertain, a random vacuum degree blindly.The vacuum fresh-retaining container that the utility model provides, by aspiration pump and pressure sensor and the structure that there is control planning between the two thereof, user can be helped in the scope of internal vacuum process to 3.8 ~ 6.9inHg, make the food nitrite be placed in one produce speed and significantly reduce.In a word, vacuum safety antistaling container of the present utility model can realize more excellent safe fresh-keeping effect with more simple structure, thus relieve the trouble and worry of people to edible long period refrigerator preserved food products, allow people still can the food of relieved and edible storage safely in 48 hours; And antistaling container cleaning of the present utility model is convenient.
Accompanying drawing explanation
Fig. 1 is the vacuum safety antistaling container overall structure profile of the utility model embodiment 1.
Fig. 2 is the partial enlargement section of structure relating to push type aspiration pump, vacuum display unit in the vacuum safety antistaling container of the utility model embodiment 1.
Fig. 3 is the structure for amplifying generalized section at the vacuum safety antistaling container aspiration pump top described in the utility model embodiment 2.
In figure, mark is described as follows:
1-container body, 2-aspiration pump, 3-vacuum display unit, 4-gas bleeder valve,
11-container cover, 111-container cover sealing ring, 112-fastening tooth, 113-caves in, 1131-through hole A, 12-container, 13-through hole C,
21-bleeds storehouse, 22-Non-return air valve A, 23-Non-return air valve B, 231-through hole B, 24-Compress Spring, 25-aspiration pump removable cover, 251-removable cover sealing ring, 252-removable cover latch, 253-removable cover key,
31-elastic membrane, 311-plunger type is protruding, 32-column, 33-air flue, 34-through hole D.
Detailed description of the invention
Embodiment 1
A kind of vacuum fresh-retaining container described in the utility model, as shown in Figure 1, it is made up of container body 1, aspiration pump 2, vacuum display unit 3 and relief valve 4;
As shown in Figure 1, described container body 1 is made up of the container cover 11 of top and the container 12 of below, and described container cover 11 edge is provided with sealing ring 111 and locking pinch plate 112;
As shown in Figure 2, described container cover 11 is provided with inside depression 113, container body surface in depression 113 has through hole A1131, aspiration pump 2 is provided with, the Compress Spring 24 that aspiration pump 2 comprises the storehouse 21 of bleeding of hollow, Non-return air valve A22, Non-return air valve B23 and in storehouse 21 of bleeding, pressing direction arranged above through hole A1131, in depression 113; Described Non-return air valve A22 is made up of the one-way valve on through hole A1131 and through hole A, and Non-return air valve A is communicated with, and storehouse of bleeding is inner to open to storehouse of bleeding is inner unidirectional with container body; Described Non-return air valve B23 is made up of the through hole B231 at top, storehouse of bleeding and the one-way valve be attached on through hole B, Non-return air valve B is communicated with bleed inside and outside space, storehouse and the externally unidirectional opening in space; With depression basal surface compact siro spinning technology bottom described storehouse of bleeding;
As shown in Figure 2, described vacuum display unit 3 comprises the elastic membrane 31 being in container body and the column 32 protruded perpendicular to elastic membrane and from the through hole C13 on container body surface container body; Column 32 bottom surface and elastic membrane 31 center compact siro spinning technology and the part surface protruded outside container body is provided with the scale representing vacuum; Elastic membrane 31 area is significantly greater than through hole C13, elastic membrane 31 edges close connecting container body inner surface, is strictly isolated in space residing for container body space and column 32;
Air flue 33 is had to be communicated with between described through hole A1131 and elastic membrane 31, residing for air flue and column, space is strictly isolated by elastic membrane, gap is there is between airway walls and elastic membrane, and have through hole D34 at the positive launching position of elastic membrane 31 in airway walls, elastic membrane 31 lower surface is provided with plunger type projection 311 just to through hole D, and coincide with through hole D specification.
Described relief valve 4 is arranged in the container cover 11 of container body 1 in a conventional manner.
In vacuum safety antistaling container of the present utility model, described elastic membrane 31 has flexible macromolecule polymer material as materials such as food-grade rubber membrane, pellosils.When manufacturing vacuum fresh-retaining container of the present utility model, by method of the prior art, the deformation that when determining to produce in container body any vacuum within the scope of 3.8-6.9inHg according to the specific nature of elastic membrane material, elastic membrane 31 can produce, and then determine the displacement to container body retraction that column 32 can produce, with reference to this displacement, the distance between plunger type protruding 311 in elastic membrane 31 and airway walls through hole D34 is set.
When using vacuum safety antistaling container described in the utility model, food for storage is put into the container 12 of container body, covered container lid 11, utilize sealing ring 111 and locking pinch plate 112 airtight container body, Manual press aspiration pump 2, bleed storehouse 21 when compressing Non-return air valve B23 open, air outwardly flows discharge in storehouse 21 of bleeding, when decontroling aspiration pump 2, expand in storehouse 21 of bleeding under the effect of Compress Spring 24, Non-return air valve B23 closes, Non-return air valve A22 is open, air is discharged from flowing to storehouse 21 of bleeding in container body 1, so repeatedly press aspiration pump 2, vacuum in container body 1 is made to increase gradually, meanwhile, elastic membrane 31 both sides pressure reduction in vacuum display unit 3 increases gradually, the downward deformation of elastic membrane 31 also increases thereupon gradually, drive plunger type projection 311 slowly close to the through hole D34 of air flue, drive the column 32 of opposite side slowly to bounce back in container body simultaneously, when reaching any vacuum within the scope of default 4-6.5inHg in container body 1, plunger type projection 311 in elastic membrane 31 blocks through hole D34 completely, thus to block in container body 1 air to the flowing of aspiration pump 2, namely the user of vacuum safety antistaling container is stoped to continue to vacuumize, now can seal the Non-return air valve of aspiration pump, the vacuum in container body is made to remain on suitable level, stored under refrigeration or normal temperature storage.
After food preserves a period of time in refrigerator, in container, vacuum may decline, and it is outstanding that the column 32 of vacuum display unit has to a certain degree, prompting user again press aspiration pump 2 supplement be evacuated to take out motionless till.
After Refrigerator store terminates, container cover 11 can be opened after opening relief valve 4 pressure release and take out food and cook or heat.
Embodiment 2
A kind of safe vacuum antistaling container described in the utility model, its overall structure is identical with the vacuum fresh-retaining container of embodiment 1, just aspiration pump removable cover 25 is set at described aspiration pump top, as shown in Figure 3, bleed described in described aspiration pump removable cover 25 is in crown center position, storehouse 21, described Non-return air valve B is in the centre position of described aspiration pump removable cover 25; Described aspiration pump removable cover 25 1 edges arrange latch 252, and opposite edges arrange key 253; Aspiration pump removable cover 25 pushes up clamping by latch 252 and key 253 with storehouse 21 of bleeding; The described Cang Ding of bleeding and removable cover connecting portion arrange removable cover sealing ring 251.When safe vacuum antistaling container uses, removable cover covers tightly sealing, and after finishing using, aspiration pump removable cover 25 can disassembly, cleaning.
Claims (5)
1. a vacuum fresh-retaining container, is characterized in that: it is made up of container body, aspiration pump, vacuum display unit and relief valve; Described container body is made up of the container cover of top and the container of below, described container cover is provided with inside depression, container body surface in depression has through hole A, be provided with aspiration pump above through hole A, in depression, aspiration pump comprises the Compress Spring pressing in the storehouse of bleeding of hollow, Non-return air valve A, Non-return air valve B and storehouse of bleeding and direction is arranged; Described Non-return air valve A is made up of the unidirectional shutter device on through hole A and through hole A, and Non-return air valve A is communicated with, and storehouse of bleeding is inner to open to storehouse of bleeding is inner unidirectional with container body; Described Non-return air valve B is made up of the through hole B at top, storehouse of bleeding and the unidirectional shutter device be attached on through hole B, Non-return air valve B is communicated with bleed inside and outside space, storehouse and the externally unidirectional opening in space; With depression basal surface compact siro spinning technology bottom described storehouse of bleeding; Described vacuum display unit comprises the elastic membrane being in container body and the column protruded perpendicular to elastic membrane and from the through hole C on container body surface container body; Column bottom surface and elastic membrane center compact siro spinning technology; Elastic membrane area is significantly greater than through hole C, elastic membrane edges close connecting container body inner surface, is strictly isolated in space residing for container body space and column; Air flue is had to be communicated with between described through hole A and elastic membrane, residing for air flue and column, space is strictly isolated by elastic membrane, gap is there is between airway walls and elastic membrane, and have through hole D at the positive launching position of elastic membrane in airway walls, i.e. through hole D, air flue and through hole A connection container body inside and storehouse of bleeding.
2. vacuum fresh-retaining container according to claim 1, is characterized in that: the column of described vacuum display unit arranges scale or the vacuum intensity area mark of display vacuum further on surface.
3. vacuum fresh-retaining container according to claim 1, is characterized in that: described elastic membrane is provided with plunger type projection further, described plunger type projection just to through hole D and and through hole D specification coincide.
4. vacuum fresh-retaining container according to claim 1, is characterized in that: described two Non-return air valves of bleeding on storehouse can be formed by shutter device by attachment on through hole; Described can shutter device be the elastic flexible material sheet being in valve open sides, or is positioned at the one-way valve assembly of described through hole.
5. vacuum fresh-retaining container according to claim 1, it is characterized in that: described aspiration pump top arranges aspiration pump removable cover, bleed described in described aspiration pump removable cover is in crown center position, storehouse, described Non-return air valve B is in the centre position of described aspiration pump removable cover; On described aspiration pump removable cover, an edge arranges latch, and opposite edges arrange key; Aspiration pump removable cover pushes up clamping by latch and key and storehouse of bleeding; The described Cang Ding of bleeding and removable cover connecting portion arrange removable cover sealing ring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420797643.9U CN204393278U (en) | 2014-12-16 | 2014-12-16 | A kind of food security antistaling container reducing nitrite and increase |
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| CN201420797643.9U CN204393278U (en) | 2014-12-16 | 2014-12-16 | A kind of food security antistaling container reducing nitrite and increase |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199085A (en) * | 2017-06-29 | 2019-01-15 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus |
| CN109941613A (en) * | 2019-05-07 | 2019-06-28 | 广东顺德柏杉电器科技有限公司 | A kind of preservation device |
-
2014
- 2014-12-16 CN CN201420797643.9U patent/CN204393278U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199085A (en) * | 2017-06-29 | 2019-01-15 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus |
| CN109941613A (en) * | 2019-05-07 | 2019-06-28 | 广东顺德柏杉电器科技有限公司 | A kind of preservation device |
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