CN212048637U

CN212048637U - Negative pressure preservation box

Info

Publication number: CN212048637U
Application number: CN202020729613.XU
Authority: CN
Inventors: 杨建才; 陈彩霞; 吕平平
Original assignee: Chnagzhou Bestfull Mould & Plastics Co ltd
Current assignee: Jiangsu Bsf Technology Co ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-12-01
Anticipated expiration: 2030-05-06

Abstract

The utility model discloses a negative pressure preservation box, which comprises a bottom shell and an upper cover, wherein a sealing ring is arranged between the bottom shell and the upper cover, both ends of the upper cover in the length direction are respectively provided with a fixed ear buckle and a movable ear buckle which are used for being buckled with the bottom shell, the middle part of the upper cover is provided with an air vent, and an air valve is arranged in the air vent; the movable ear clip comprises a switching part which is rotationally connected with the upper cover and a buckling part which is buckled with the bottom shell, and a plug column for closing the air valve is fixed on the bottom wall of the switching part. The utility model discloses a negative pressure preservation box, it is detained through a fixed ear and a activity ear and realizes the sealing connection of preservation box upper cover and drain pan, and the activity ear is detained the negative pressure sealing function that has both realized preservation box, can change again when damaging, and then can prolong preservation box cover's life.

Description

Negative pressure preservation box

Technical Field

The utility model relates to a preservation box field, it is very much, relate to a negative pressure preservation box.

Background

Along with the more and more importance of the quality of life of people, when people work at work or go out to do business, travel and other activities, some fruits, dishes or other foods can be carried by using the preservation box usually, or the preservation box is also adopted in home life to preserve foods and the like which are required to be preserved. The existing preservation box is characterized in that an upper cover is attached to a bottom shell, an ear buckle is arranged in each of four directions of the upper cover and buckled on a bowl opening of the bottom shell, four ear buckles need to be buckled during operation, the ear buckle of the upper cover is buckled with the bottom shell, the preservation time of the structure is long, the operation of buckling the ear buckle is complex, and the ear buckle is bent for a long time and is easy to crack, and the function failure problem of the preservation box is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a negative pressure preservation box, its sealing connection through a fixed ear knot and a movable ear knot realization preservation box upper cover and drain pan, the movable ear knot has both realized the negative pressure sealing function of preservation box, can change again when damaging, and then can prolong the life of preservation box lid.

The above object of the present invention can be achieved by the following technical solutions:

a negative pressure preservation box comprises a bottom shell and an upper cover, wherein a sealing ring is arranged between the bottom shell and the upper cover, two ends of the upper cover in the length direction are respectively provided with a fixed ear buckle and a movable ear buckle which are used for being buckled with the bottom shell, the middle part of the upper cover is provided with an air vent, and an air valve is arranged in the air vent;

one end of the movable ear fastener is rotatably connected with the upper cover, the other end of the movable ear fastener is fastened with one end of the bottom shell far away from the fixed ear fastener, and a plug for closing the air valve is fixed on the bottom wall of the movable ear fastener.

The air valve comprises a mounting column, an upper flange and a lower flange, wherein the mounting column is internally provided with a through hole, the upper flange is integrally formed above the mounting column, the lower flange is integrally formed below the mounting column, the upper flange is arranged above the vent hole, the outer diameter of the upper flange is larger than the inner diameter of the vent hole, the lower flange is arranged below the vent hole, and the outer diameter of the lower flange is larger than the inner diameter of the vent hole;

the mounting column is sleeved in the vent hole, the through hole penetrates through the upper flange and the lower flange, the lower part of the through hole is communicated with the inside of the bottom shell, and the upper part of the through hole is sealed by the plug column.

Wherein, the stopper post is back taper structure hollow structure, through-hole upper end opening in stopper post adaptation.

The upper surface of the upper cover is downwards recessed with a containing groove, the movable ear clip comprises a groove-shaped shell which is rotatably connected in the containing groove, two sides of one end of the groove-shaped shell in the length direction are respectively provided with a rotating connecting port, two sides of the length direction in the containing groove are respectively fixed with a rotating shaft which is rotatably matched with the rotating connecting ports, the axes of the two rotating shafts are collinear, and the axial direction of the rotating shaft is parallel to the width direction of the upper cover;

the buckle that the one end body coupling of rotation connector was kept away from to the trough-shaped casing, the buckle is fixed with the lock joint arch towards the one end of drain pan.

The groove-shaped shell is characterized in that the two sides of the length direction in the groove-shaped shell are respectively provided with a clamping groove, the upper cover is fixed with two mounting plates towards the inner wall of one end of the bottom shell, the mounting plates can be embedded in the groove-shaped shell, and the mounting plates are integrally fixed with convex ribs matched with the clamping grooves in the outer side.

The groove-shaped shell is provided with a limiting flange at one end far away from the pinch plate, and the bottom wall of the accommodating groove is provided with a limiting strip.

The sealing ring comprises an installation part arranged at the edge of the bottom of the upper cover and a leading-in part integrally connected with the bottom of the installation part, and the leading-in part is inserted into the bottom shell and clings to the inner wall of the bottom shell.

The inner side edge of the upper cover is provided with an inner convex ring and an outer convex ring, a ring groove for embedding the sealing ring mounting part is formed between the inner convex ring and the outer convex ring, and the height of the inner convex ring is greater than that of the outer convex ring.

The bottom wall of the inner side of the upper cover is provided with a positioning bulge, and the upper cover is covered on the bottom shell through the positioning bulge.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses set up the pneumatic valve above the upper cover to in the cooperation vacuum pump cooperation air in the drain pan of discharging, when the drain pan is in negative pressure state, through rotating movable ear buckle, movable ear buckle realizes the sealed fixed of upper cover and drain pan with fixed ear buckle jointly, and the plug post of activity ear buckle bottom is impressed in the pneumatic valve mouth simultaneously, realizes the sealed to the pneumatic valve. Compared with the traditional preservation box, the movable ear clip can rotate and can be detached, so that when the upper cover is fixed, the movable ear clip rotates with the upper cover, the problem of breakage of the frequently rotated and early formed ear clip at the joint of the traditional ear clip is reduced, the movable ear clip can be replaced, and the service life of the preservation box is prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic sectional view of the connection relationship between the upper cover and the bottom case of the present invention.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 4 is an illustration of the explosion structure of the connection relationship between the movable buckle and the upper cover.

Fig. 5 is a schematic diagram of the inner wall structure of the upper cover of the present invention.

Fig. 6 is an assembly structure diagram of the connection relationship between the two upper covers of the present invention.

Fig. 7 is a schematic structural view of the seal ring of the present invention.

In the figure, 1, a bottom shell; 2. an upper cover; 21. a vent hole; 22. a containing groove; 221. a rotating shaft; 23. mounting a plate; 231. a rib; 24. a limiting strip; 25. an inner collar; 26. an outer convex ring; 27. a ring groove; 28. positioning the projection; 3. a seal ring; 31. an installation part; 32. an introduction section; 4. fixing the ear clip; 5. a movable ear buckle; 51. a trough-shaped housing; 511. a rotary connector; 512. a card slot; 513. a limiting flange; 52. buckling the plate; 521. fastening bulges; 6. an air valve; 61. mounting a column; 62. an upper flange; 63. a lower flange; 64. a through hole; 7. and (6) plugging the column.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

Referring to fig. 1 and 2, for the utility model discloses a negative pressure preservation box, including drain pan 1 and upper cover 2, be provided with sealing washer 3 between drain pan 1 and the

upper cover

2, 2 length direction's of upper cover both ends are provided with respectively and are used for with the fixed ear of drain pan 1 lock joint detain 4 and

activity ear detain

5, and 2 roof of upper cover keep away from the one end of fixed ear detain 4 and seted up air vent 21, install pneumatic valve 6 in the air vent 21. The bottom shell 1 is a shell with a large upper part and a small lower part and is made of glass materials, and the air valve 6 and the sealing ring 3 are both made of silica gel materials. The fixing ear clip 4 is an ear clip structure of a conventional preservation box and will not be described in detail herein.

Referring to fig. 2 and 3, the air valve 6 includes a mounting post 61 having a through hole 64 formed therein, an upper flange 62 integrally formed above the mounting post 61, and a lower flange 63 integrally formed below the mounting post 61, wherein the upper flange 62 is disposed above the vent hole 21 and has an outer diameter larger than an inner diameter of the vent hole 21, and the lower flange 63 is disposed below the vent hole 21 and has an outer diameter larger than an inner diameter of the vent hole 21. The mounting post 61 is sleeved in the vent hole 21, the through hole 64 penetrates through the upper flange 62 and the lower flange 63, the lower part of the through hole 64 is communicated with the inside of the bottom shell 1, and the upper part is sealed by the plug 7 at the bottom of the movable ear clip 5.

Referring to fig. 4, the upper surface of the upper cover 2 is recessed downward to form a receiving groove 22. The movable ear clip 5 comprises a groove-shaped shell 51 which is rotatably connected in the containing groove 22, and two sides of one end of the groove-shaped shell 51 in the length direction are both provided with a rotating connecting port 511; two rotating shafts 221 which are rotatably matched with the rotating connecting ports 511 are respectively fixed on two sides of the length direction in the accommodating groove 22, the axes of the two rotating shafts 221 are collinear, and the axial direction of the rotating shafts 221 is parallel to the width direction of the upper cover 2. A buckle plate 52 is integrally connected to one end of the groove-shaped shell 51 far away from the rotary connecting port 511, and a buckle protrusion 521 is fixed to one end of the buckle plate 52 facing the bottom shell 1. The upper cover 2 is buckled with the bottom shell 1 through the fixed ear buckles 4 and the movable ear buckles 5. In order to seal the air valve 6, a plug 7 adapted to the air valve 6 is fixed to the bottom wall of the groove-shaped housing 51, and the plug 7 has a hollow structure of an inverted cone with an open bottom end (see fig. 3).

When the air valve is closed, the fixed ear buckle 4 is embedded with the edge of the bottom shell 1 in a positioning mode, then the movable ear buckle 5 is turned downwards, the plug 7 on the bottom wall of the groove-shaped shell 51 of the movable ear buckle 5 moves towards the direction close to the bottom shell 1 through the rotating shaft 221 until the plug 7 is sealed at the upper port of the air valve 6, and the buckle plate 52 is buckled with the end portion of the bottom shell 1. At this time, the upper cover 2 is fixed on the bottom case 1 by the fixed ear clip 4 and the movable ear clip 5, and the bottom case 1 is sealed.

Referring to fig. 3, in order to facilitate the positioning and rotation of the groove-shaped housing 51, a limiting flange 513 is disposed at one end of the groove-shaped housing 51 away from the buckle plate 52, and a limiting strip 24 is disposed at the bottom wall of the accommodating groove 22. When the upper cover 2 is opened, the buckle plate 52 is held by hand, the buckle connection bulge 521 of the buckle plate 52 is slightly lifted upwards, the plastic elasticity is utilized, the movable ear buckle 5 continues to rotate until the limiting flange 513 is abutted against the inner side of the limiting strip 24, the plug 7 is separated from the air valve 6 at the moment, the through hole 64 of the air valve 6 is opened, the air in the bottom shell 1 is discharged to eliminate the negative pressure state, and the upper cover 2 can be separated from the bottom shell 1.

Referring to fig. 4, 5 and 6, in order to facilitate stacking and transportation of the upper cover 2 in production, two clamping grooves 512 are respectively formed on two sides of the inside of the groove-shaped shell 51 in the length direction, two mounting plates 23 are fixed on the inner wall of one end of the upper cover 2 facing the bottom shell 1, the mounting plates 23 can be embedded in the groove-shaped shell 51, and convex ribs 231 matched with the clamping grooves 512 are integrally fixed on the outer sides of the mounting plates 23. Through the cooperation of bead 231 on the mounting panel 23, draw-in groove 512 in the trough-shaped casing 51 between two adjacent upper covers 2, realize the stable connection of two upper covers 2, reduce the space that a plurality of upper covers 2 occupy in the production transportation to reduce the damage phenomenon that bumps and cause between the adjacent upper cover 2.

Referring to fig. 7, the gasket 3 includes a mounting portion 31 mounted on the bottom edge of the upper cover 2, and a lead-in portion 32 integrally connected to the bottom of the mounting portion 31, and the lead-in portion 32 is inserted into the bottom case 1 and closely attached to the inner wall of the bottom case 1. When negative pressure state appears in drain pan 1 inside, upper cover 2 constantly extrudees the clamping ring, makes the upper and lower face of clamping ring closely laminate upper cover 2 and drain pan 1, plays good sealed effect to make upper cover 2 closely the lid close in drain pan 1 top, expose outside upper cover 2 in addition this sealing washer 3 below, the sealing washer 3 of being convenient for is dismantled, is washd, avoids bacterial growing.

In order to facilitate the installation of the sealing ring 3, the inner side edge of the upper cover 2 is provided with an inner convex ring 25 and an outer convex ring 26, a ring groove 27 for embedding the installation part 31 of the sealing ring 3 is formed between the inner convex ring 25 and the outer convex ring 26, the height of the inner convex ring 25 is greater than that of the outer convex ring 26, and the positioning installation between the sealing ring 3 and the upper cover 2 is realized. The inner convex ring 25 can support the sealing ring 3, so that the sealing ring 3 is prevented from being turned inwards, and the sealing effect is ensured.

In order to facilitate the positioning and installation of the upper cover 2, the bottom wall of the inner side of the upper cover 2 is provided with a positioning bulge 28, and the upper cover 2 is positioned and covered on the bottom shell 1 through the positioning bulge 28. When the lid closes, earlier through the arc location arch 28 at four angles of 2 diapire of upper cover, with the 2 lock of upper cover at drain pan 1 opening to make fixed ear detain 4 and drain pan 1 length direction's tip lock joint, the activity ear detains 5 and is in the open mode this moment, can carry out evacuation processing to drain pan 1, the drain pan 1 of negative pressure state seals pneumatic valve 6 through the stopper post 7 of activity ear detains 5, realizes the closure to drain pan 1. The movable ear clip 5 rotates around the rotating shaft 221, and the fastening protrusion 521 on the fastening plate 52 is fastened with the end part of the bottom case 1 far away from the fixed ear clip 4, so that the upper cover 2 of the preservation box is hermetically connected with the bottom case 1.

Compared with the prior art, the utility model discloses a negative pressure preservation box comprises upper cover 2, activity ear knot 5, silica gel pneumatic valve 6, glass drain pan 1, silica gel sealing washer 3 and the fixed ear knot 4 of fixing at upper cover 2. The upper cover 2, the fixed ear buttons 4, the movable ear buttons 5, the silica gel air valve 6 and the silica gel sealing ring 3 are an assembly of the upper cover 2, and when food materials need to be stored, the assembly of the upper cover 2 can be opened only by opening the movable ear buttons 5; when food materials are put in, the original one end of the upper cover 2 is buckled at the bowl mouth, and after the upper cover 2 is covered, the movable ear buckle 5 is pressed down to buckle the other end of the bowl mouth.

The working principle is as follows: the upper cover 2 is provided with a fixed ear buckle 4, the silica gel air valve 6 is assembled at the air vent 21 of the upper cover 2, the movable ear buckle 5 is assembled behind the upper cover 2 and has a rotating function, the upper cover 2 assembly covers the glass bottom shell 1, and the movable ear buckle 5 is rotated to complete the functions of air sealing and ear buckle. When the food materials need to be taken out, the movable ear clip 5 can be rotated anticlockwise to complete the functions of opening the ear clip and deflating, the upper cover 2 can be opened at the moment, the food materials are taken out, the operation is convenient, and the service life is longer.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a negative pressure preservation box, includes drain pan (1) and upper cover (2), be provided with between drain pan (1) and upper cover (2) sealing washer (3), its characterized in that: a fixed ear buckle (4) and a movable ear buckle (5) which are used for being buckled with the bottom shell (1) are respectively arranged at two ends of the upper cover (2) in the length direction, a vent hole (21) is formed in the middle of the upper cover (2), and an air valve (6) is installed in the vent hole (21);

one end of the movable ear buckle (5) is rotatably connected with the upper cover (2), the other end of the movable ear buckle is buckled with one end of the bottom shell (1) far away from the fixed ear buckle (4), and a plug (7) for sealing the air valve (6) is fixed on the bottom wall of the movable ear buckle (5).

2. The negative pressure fresh-keeping box according to claim 1, characterized in that: the air valve (6) comprises an installation column (61) with a through hole (64) formed inside, an upper flange (62) integrally formed above the installation column (61), and a lower flange (63) integrally formed below the installation column (61), wherein the upper flange (62) is arranged above the vent hole (21), the outer diameter of the upper flange is larger than the inner diameter of the vent hole (21), the lower flange (63) is arranged below the vent hole (21), and the outer diameter of the lower flange is larger than the inner diameter of the vent hole (21);

the mounting column (61) is sleeved in the vent hole (21), the through hole (64) penetrates through the upper flange (62) and the lower flange (63), the lower part of the through hole (64) is communicated with the inside of the bottom shell (1), and the upper part of the through hole is sealed by the plug column (7).

3. The negative pressure fresh-keeping box of claim 2, wherein: the plug (7) is of an inverted cone-shaped structure, and the upper end of the through hole (64) is opened in the plug (7) in a matching mode.

4. The negative pressure fresh-keeping box according to claim 1, characterized in that: the upper surface of the upper cover (2) is downwards sunken to form a containing groove (22), the movable ear clip (5) comprises a groove-shaped shell (51) which is rotatably connected in the containing groove (22), two sides of one end of the groove-shaped shell (51) in the length direction are respectively provided with a rotating connecting port (511), two sides of the length direction in the containing groove (22) are respectively fixed with a rotating shaft (221) which is rotatably matched with the rotating connecting ports (511), the axes of the two rotating shafts (221) are collinear, and the axial direction of the rotating shaft (221) is parallel to the width direction of the upper cover (2);

one end of the groove-shaped shell (51) far away from the rotary connecting port (511) is integrally connected with a buckling plate (52), and one end of the buckling plate (52) facing the bottom shell (1) is fixedly provided with a buckling protrusion (521).

5. The negative pressure fresh-keeping box of claim 4, wherein: the both sides of the inside length direction of slot-like casing (51) are provided with draw-in groove (512) respectively, upper cover (2) are fixed with two mounting panels (23) towards the one end inner wall of drain pan (1), mounting panel (23) can inlay and establish in slot-like casing (51), mounting panel (23) outside an organic whole be fixed with bead (231) of draw-in groove (512) adaptation.

6. The negative pressure fresh-keeping box of claim 5, wherein: one end, far away from the pinch plate (52), of the groove-shaped shell (51) is provided with a limiting flange (513), and the bottom wall of the accommodating groove (22) is provided with a limiting strip (24).

7. The negative pressure fresh-keeping box according to claim 1, characterized in that: sealing washer (3) are including installing installation department (31) at upper cover (2) bottom edge to and with integrative introduction portion (32) that link to each other in installation department (31) bottom, introduction portion (32) insert in drain pan (1) to hug closely in drain pan (1) inner wall.

8. The negative pressure fresh-keeping box of claim 7, wherein: an inner convex ring (25) and an outer convex ring (26) are arranged on the inner side edge of the upper cover (2), a ring groove (27) for embedding the mounting part (31) of the sealing ring (3) is formed between the inner convex ring (25) and the outer convex ring (26), and the height of the inner convex ring (25) is greater than that of the outer convex ring (26).

9. The negative pressure fresh-keeping box according to claim 1, characterized in that: the bottom wall of the inner side of the upper cover (2) is provided with a positioning bulge (28), and the upper cover (2) is positioned and covered on the bottom shell (1) through the positioning bulge (28).