CN213657223U

CN213657223U - Vacuum preservation box and refrigerator

Info

Publication number: CN213657223U
Application number: CN202022568308.XU
Authority: CN
Inventors: 赵兴; 杨春
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-07-09
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a vacuum preservation box and refrigerator, preservation box includes the box body, lid and vacuum valve, be equipped with the bleeder vent on the lid, the vacuum valve includes the column body portion, the bottom of column body portion is equipped with a plurality of first turn-ups portions along its circumference interval, the top is equipped with second turn-ups portion, the column body portion is worn to locate in the bleeder vent, and with form air current clearance between the inner wall of bleeder vent, first turn-ups position in the bottom side of bleeder vent, second turn-ups position in the top side of bleeder vent, the internal diameter that is greater than the bleeder vent respectively is equallyd divide to a plurality of first turn-ups portion regional external diameter that encloses and the external diameter of second turn-ups portion, distance between the top surface of first turn-ups portion and the bottom surface of second turn. The outer peripheral wall of the column body portion is provided with a plurality of first groove portions along the axial direction of the column body portion, and the first groove portions are located between two adjacent first flanging portions. The arrangement of the first groove part increases the volume of the gas flow channel, the quantity of gas discharged through the first groove part and the gas flow gap within the same time is increased, and the vacuumizing speed is improved.

Description

Vacuum preservation box and refrigerator

Technical Field

The utility model relates to a refrigeration plant technical field especially relates to a vacuum preservation box and refrigerator.

Background

In recent years, people's health consciousness is gradually improved, and the demand for food material preservation is also improved, so that the refrigerator is used as the most common household appliance for storing food materials, and the food material preservation storage becomes a technical demand to be solved urgently in the field of refrigerators. At present, different preservation technologies are introduced by various manufacturers aiming at the problem of food material preservation and storage. For example, in the vacuum preservation technology, the food deterioration condition is changed in the vacuum state. Firstly, in a vacuum environment, microorganisms and various promoting enzymes are difficult to survive, and the requirement of microorganism breeding can be met for a long time; secondly, under the vacuum state, the oxygen in the container is greatly reduced, various chemical reactions can not be completed, the food can not be oxidized, and the food can be preserved for a long time.

The food material can be stored in the refrigerator in a fresh-keeping mode through the vacuum fresh-keeping box, and the vacuum fresh-keeping box is vacuumized through the vacuumizing equipment (such as a vacuumizing connector), so that the pressure in the box reaches the pressure requirement for food material fresh-keeping storage. The existing vacuum preservation box usually comprises a box main body and a vacuum valve, the vacuum valve is arranged on the box main body, during vacuumizing, gas in the box main body flows out through a gap between the vacuum valve and the box main body, and after vacuumizing is finished, the vacuum valve is in contact sealing fit with the box main body, so that the box main body is continuously maintained at certain pressure. The sealing effect of the fresh food box is affected by various factors, such as the contact sealing performance between the vacuum valve and the box main body, the self structure of the vacuum valve, and the like.

The air holes used for installing the vacuum valve on the existing box main body are usually integrally formed when the box main body is subjected to injection molding, and an injection molding part is easy to clamp a line and release the inclination, so that the matching between the vacuum valve and the air holes is influenced, and the sealing effect of the preservation box is also influenced.

An airflow gap formed between the existing vacuum valve and the air hole is small, so that the airflow is small during vacuum pumping, and the vacuum pumping speed is low.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

Disclosure of Invention

To the problem pointed out in the background art, the utility model provides a vacuum preservation box and refrigerator, this vacuum preservation box's sealing performance is good to the evacuation is fast.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

in some embodiments of the present application, a vacuum preservation box is provided, which includes a box body, and further includes:

the cover body is buckled with the box body to form a storage cavity, and air holes are formed in the cover body;

the vacuum valve comprises a cylindrical body part, wherein a plurality of first flanging parts are arranged at intervals along the circumferential direction of the cylindrical body part at the bottom of the cylindrical body part, a second flanging part is arranged along the circumferential direction of the cylindrical body part, the cylindrical body part is arranged in the vent hole in a penetrating manner and forms an airflow gap with the inner wall of the vent hole, the first flanging part is positioned at the bottom side of the vent hole, the second flanging part is positioned at the top side of the vent hole, the outer diameters of the areas surrounded by the plurality of first flanging parts and the outer diameters of the second flanging parts are respectively larger than the inner diameter of the vent hole, and the distance between the top surface of the first flanging part and the bottom surface of the second flanging part is larger than the height of the vent hole;

the outer peripheral wall of the column body portion is provided with a plurality of first groove portions along the axial direction of the column body portion, and the first groove portions are located between two adjacent first flanging portions.

In some embodiments of the present application, a plurality of the first flanging parts are disposed adjacently, the bottom ends of the first groove parts meet at a connecting position of two adjacent first flanging parts, and the top ends of the first groove parts extend to the bottom surface of the second flanging part.

In some embodiments of the present application, the number of the first flanging parts is three, three of the first flanging parts are uniformly spaced along the circumferential direction of the column part, and three of the first groove parts are correspondingly provided.

In some embodiments of the present application, the bottom end of the peripheral wall surrounding the ventilation hole is a continuous plane structure.

In some embodiments of the present application, a handle portion is disposed on a top portion of the second flanging portion.

In some embodiments of the present application, a second groove portion is provided on a circumferential side wall of the handle portion, the second groove portion being recessed toward the column portion side.

In some embodiments of the present application, a first contact surface is disposed on the top of the cover, a second contact surface for sealing contact with the first contact surface is formed on the bottom surface of the second flanging portion, and the surface roughness of the first contact surface and the surface roughness of the second contact surface are in a range of 1 to 6.

In some embodiments of the present application, the vent is formed by punching the cover body through a milling cutter.

The utility model also provides a refrigerator, include as above the vacuum preservation box.

In some embodiments of this application, the refrigerator includes a door body and evacuation joint, the vacuum preservation box is located on the door body, the evacuation joint be used for right the vacuum preservation box carries out the evacuation.

Compared with the prior art, the utility model discloses an advantage is with positive effect:

in the vacuum preservation box disclosed in the application, the vacuum valve includes that cylinder portion and part locate the first turn-ups portion and the second turn-ups portion at both ends about the cylinder portion, first turn-ups portion has a plurality ofly and sets up along the circumference interval of cylinder portion, the cylinder portion wears to locate in the venthole on the lid, first turn-ups portion and second turn-ups portion can restrict the upper and lower displacement of vacuum valve, cylinder portion is equipped with a plurality of first concave part along its axial, first concave part is located between two adjacent first turn-ups portions. When the vacuum valve is vacuumized or decompressed, the vacuum valve is stressed upwards, the top surfaces of the first flanging parts are simultaneously abutted against the bottom end surfaces of the circumferential walls which surround the air holes, the bottom surfaces of the second flanging parts are separated from the top surface of the cover body, and air in the storage cavity enters the air flow gap through the first grooves and is discharged from the gap between the second flanging parts and the cover body. The arrangement of the plurality of first groove portions increases the volume of the gas flow channel, and the amount of gas discharged through the first groove portions and the gas flow gaps in the same period of time is increased compared with the case of discharging gas only through the gas flow gaps, so that the vacuumizing speed is increased.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural view of a refrigerator according to an embodiment;

FIG. 2 is a schematic structural diagram of a vacuum crisper according to an embodiment;

FIG. 3 is a cross-sectional view of a vacuum crisper, according to an embodiment;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic structural diagram of a vacuum valve according to an embodiment;

FIG. 6 is a schematic view of the structure of FIG. 5 viewed from the bottom side;

FIG. 7 is a schematic structural diagram of a cover according to an embodiment;

fig. 8 is a schematic view of the structure of fig. 7 as viewed from the bottom side.

Reference numerals:

100-refrigerator, 110-box, 120-door, 130-shelf and 140-vacuumizing joint;

200-vacuum preservation box;

210-a cartridge;

220-cover, 221-vacuum interface, 222-air vent, 223-circumferential wall, 224-first contact surface, 225-air gap;

230-vacuum valve, 231-column part, 232-first flanging part, 233-second flanging part, 234-second contact surface, 235-through hole, 236-handle part, 237-first groove part, 238-second groove part;

240-storage chamber.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

[ refrigerator ]

Fig. 1 is a perspective view of an embodiment of a refrigerator of the present application, and a refrigerator 100 of the present embodiment has an approximately rectangular parallelepiped shape. The refrigerator 100 includes a cabinet 110 and a door 120 hinged to the cabinet 110, and a plurality of refrigerating chambers and/or freezing chambers are defined by the cabinet 110 and the door 120.

The refrigerator 100 in this application is a refrigerator with a vacuum refreshing function, and the vacuum refreshing function is realized by the vacuum refreshing box 200.

The storage cavity 240 is formed in the vacuum preservation box 200, the vacuum preservation box 200 is detachably connected with the door body 120 (particularly, a door liner), the vacuum preservation box 200 can be conveniently taken down from the door body 120, and the use convenience of the vacuum preservation box 200 is improved.

Referring to fig. 2 and 3, the vacuum preservation box 200 includes a box body 210 and a cover body 220, wherein a vacuum-pumping interface 221 is disposed on the cover body 220, and the vacuum-pumping interface 221 is used for cooperating with a vacuum-pumping assembly so as to facilitate the vacuum-pumping assembly to communicate with the storage cavity 240 and to vacuum the storage cavity 240.

The vacuum-pumping assembly can make the interior of the vacuum preservation box 200 reach a vacuum state, wherein the vacuum state is not an absolute vacuum state but a low-pressure state, so as to improve the preservation of articles stored in the vacuum preservation box 200. In this embodiment, the vacuum inside the vacuum refreshing box 200 is 0.6-0.9 mpa.

The vacuumizing assembly comprises a vacuum pump, a vacuumizing pipeline and a vacuumizing connector 140, the vacuumizing pipeline is used for communicating the vacuum pump with the vacuumizing connector 140, the vacuumizing connector 140 is detachably connected with a vacuumizing interface part 221, and the vacuum pump provides vacuumizing power for the whole vacuumizing assembly.

The vacuumizing connector 140 is arranged on the door body 120 in a turning manner, specifically on the inner container of the door body, and the vacuumizing connector 140 can be communicated with the storage cavity 240.

When the storage cavity 240 needs to be vacuumized, the vacuumizing connector 140 is communicated with the storage cavity 240, that is, the vacuumizing connector 140 is connected with the vacuumizing interface 221, at this time, the vacuum pump is started, and gas in the storage cavity 240 can be exhausted to the vacuum pump through the vacuumizing connector 140 and the vacuumizing pipeline, so that low pressure in the storage cavity 240 is realized.

When the vacuum preservation box 200 needs to be taken down from the door 120, the vacuuming connector 140 is turned over to be separated from the vacuum preservation box 200, that is, the vacuuming connector 140 is separated from the vacuuming interface part 221.

On the door body inner bag was located to evacuation joint 140 upset ground in this application, according to whether need carry out the evacuation to vacuum preservation box 200 and with evacuation joint 140 upwards upset or upset downwards can, the simple operation, convenient to use.

In some embodiments of the present application, referring to fig. 1, the shelf 130 is disposed on the inner container of the door, and the vacuum preservation box 200 is directly placed in the shelf 130, so as to detachably connect the vacuum preservation box 200 and the inner container of the door. When the vacuum preservation box 200 needs to be taken out of the refrigerator 100, the vacuum preservation box 200 can be taken out of the shelf 130 directly.

[ vacuum preservation case ]

Referring to fig. 2 to 4, the vacuum refreshing box 200 of the present application includes a box body 210, a cover 220, and a vacuum valve 230. The upper portion of the case 210 is opened, and the cover 220 is detachably disposed on the top of the case 210. The box body 210 and the cover 220 are fastened to form a storage cavity 240.

The cover 220 is provided with a vacuum interface 221, and the vacuum interface 221 is provided with an air hole 222. The airing hole 222 is defined by a circumferential wall 223 having a certain height.

Referring to fig. 4 to 6, the vacuum valve 230 includes a cylindrical portion 231. The bottom of the column 231 is provided with a plurality of first flanging parts 232 at intervals along the circumferential direction, the top of the column 231 is provided with a second flanging part 233 along the circumferential direction, and the first flanging parts 232 and the second flanging parts 233 horizontally extend towards the outer side of the column 231 respectively.

The outer diameter of the cylindrical portion 231 is smaller than the inner diameter of the air hole 222, and when the cylindrical portion 231 is inserted into the air hole 222, an air flow gap 225 is formed between the cylindrical portion 231 and the inner wall of the air hole 222.

The first burring part 232 is located at the bottom side of the vent hole 222, the second burring part 233 is located at the top side of the vent hole 222, and the outer diameter of the area surrounded by the plurality of first burring parts 232 is larger than the inner diameter of the vent hole 222, and the outer diameter of the second burring part 233 is also larger than the inner diameter of the vent hole 222, so that the vacuum valve 230 is equivalently clamped at the vent hole 222, the vacuum valve 230 is limited in the up-down direction, and the vacuum valve 230 is prevented from falling out of the vent hole 222.

The distance D1 between the top surface of the first burring 232 and the bottom surface of the second burring 233 is greater than the height D2 of the airing hole 222.

In the present application, referring to fig. 5 and 6, a plurality of first groove portions 237 are provided on the outer circumferential wall of the column portion 231 along the axial direction thereof, the plurality of first groove portions 237 are provided at intervals, and the first groove portions 237 are located between two adjacent first burring portions 232.

When the vacuum valve 230 is vacuumized or depressurized, the vacuum valve 230 is forced upward, the top surfaces of the first flanging parts 232 simultaneously abut against the bottom end surfaces of the circumferential walls 223 surrounding the air holes 222, the bottom surface of the second flanging part 233 is separated from the top surface of the cover 220, and air in the storage cavity 240 enters the air flow gap 225 through the first groove part 237 and is then discharged from the gap between the second flanging part 233 and the cover 220.

The provision of the plurality of first groove portions 237 increases the volume of the gas flow path, and the amount of gas discharged through the first groove portions 237 and the gas flow gaps 225 during the same period of time is increased as compared with the case where the gas is discharged only through the gas flow gaps, thereby increasing the evacuation speed.

In the process of maintaining the low pressure of the vacuum preservation box 200, that is, the pressure in the storage cavity 240 is lower than the external atmospheric pressure, at this time, the vacuum valve 230 is forced downward, and the bottom surface of the second flanging part 233 contacts with the top surface of the cover 220 to form a sealing surface, so that the vacuum preservation box 200 is sealed.

In some embodiments of the present application, referring to fig. 8, the bottom end of the circumferential wall 223 surrounding the vent hole 222 is a continuous plane structure. The inlet end of the first recessed portion 237 is equivalent to a notch structure, and when vacuum pumping or pressure relief is performed, the air in the storage chamber 240 can directly flow into the airflow gap 225 through the inlet end of the first recessed portion 237 to complete air exhaust.

This structure simplifies the processing of the air holes 222 without opening a through hole for air flow on the bottom end surface of the circumferential wall 223.

In some embodiments of the present application, a plurality of first burring portions 232 are disposed adjacently, the bottom ends of the first groove portions 237 meet at the connecting position of two adjacent first burring portions 232, and the top ends of the first groove portions 234 extend upward to the bottom surface of the second burring portion 233. With the structure, the gas in the storage cavity 240 can conveniently flow into the airflow gap 225 through the bottom inlet of the first groove portion 237, and the gas in the first groove portion 237 can be conveniently discharged through the top outlet of the first groove portion, so that the gas circulation speed is increased, and the vacuum-pumping efficiency is improved.

As a specific example, there are three first burring parts 232, three first burring parts 232 are uniformly spaced apart in the circumferential direction of the cylindrical part 231, and three first recessed grooves 237 are correspondingly provided.

In some embodiments of the present application, the top of the second flanging portion 233 is provided with a hand fastening portion 236, during pressure relief, the hand directly acts on the hand fastening portion 236 to pull up, so that the sealing effect of the vacuum valve 230 on the vacuum preservation box 200 can be released, and the convenience of the pressure relief operation is improved.

In some embodiments, the handle portion 236 is a pie-shaped structure, and a second groove portion 238 is disposed on a circumferential sidewall of the handle portion 236, and the second groove portion 238 is recessed toward the cylindrical portion 231. The second groove portion 238 facilitates the finger to extend into and pull the vacuum valve 230, further improving the convenience of the pressure relief operation.

In some embodiments of the present application, the inside of the column 231 is provided with a through hole 235 along the axial direction thereof, and the handle 236 seals the top end of the through hole 235. When the vacuum valve 230 is inserted into the air hole 222, the outer diameter of the first flanging part 232 is larger than the inner diameter of the air hole 222, and the through hole 235 enables the column part 231 to be deformed by being stressed and contracted, so that the first flanging part 232 can be conveniently inserted into the bottom side of the air hole 222, and the vacuum valve 230 can be conveniently installed.

In some embodiments, the top of the cover 220 is provided with a first contact surface 224. specifically, referring to fig. 7, the first contact surface 224 is disposed in the vacuum interface 221, and the first contact surface 224 abuts against the top of the vent hole 222. Referring to fig. 6, the second contact surface 234 for sealing contact with the first contact surface 224 is formed on the bottom surface of the second burring 233, and the surface roughness of the first contact surface 224 and the second contact surface 234 ranges from 1 to 6 steps.

The surface roughness of the first contact surface 224 and the second contact surface 234 is reduced, so that the first contact surface 224 and the second contact surface 234 are close to a mirror surface state, and the sealing effect of the preservation box can be greatly improved through the mirror surface contact state between the first contact surface 224 and the second contact surface 234.

In some embodiments, the vent holes 222 are formed in the cover 220 by milling. Since the cover 220 is generally an injection molded part, the injection molded part is easy to generate line clamping and demoulding inclination, which affects the cooperation between the vacuum valve 230 and the air holes 222, thereby affecting the sealing effect of the preservation box. The air holes 222 are formed by punching through a milling cutter, so that the defects can be avoided.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a vacuum preservation box, includes the box body, its characterized in that still includes:

2. The vacuum refreshing box according to claim 1,

the plurality of first flanging parts are arranged in an abutting mode, the bottom ends of the first groove parts are intersected at the connecting position of two adjacent first flanging parts, and the top ends of the first groove parts extend to the bottom face of the second flanging part.

3. The vacuum refreshing box according to claim 2,

the first flanging parts are three, the three first flanging parts are uniformly arranged along the circumferential direction of the column body part at intervals, and the number of the first groove parts is correspondingly three.

4. The vacuum refreshing box according to claim 1,

the bottom end of the peripheral wall which encloses the air holes is of a continuous plane structure.

5. The vacuum refreshing box according to claim 1,

and the top of the second flanging part is provided with a handle part.

6. The vacuum refreshing box according to claim 5,

and a second groove part is arranged on the circumferential side wall of the handle part and is sunken towards the side of the column body part.

7. The vacuum refreshing box according to any one of claims 1 to 6,

the top of the cover body is provided with a first contact surface, a second contact surface used for being in sealing contact with the first contact surface is formed on the bottom surface of the second flanging part, and the surface roughness of the first contact surface and the second contact surface ranges from 1 level to 6 levels.

8. The vacuum refreshing box according to any one of claims 1 to 6,

the air holes are formed by punching the cover body through a milling cutter.

9. A refrigerator comprising the vacuum refreshing box according to any one of claims 1 to 8.

10. The refrigerator according to claim 9, wherein the refrigerator comprises a door body and a vacuumizing connector, the vacuum preservation box is arranged on the door body, and the vacuumizing connector is used for vacuumizing the vacuum preservation box.