CN206182566U

CN206182566U - Airtight lunch -box

Info

Publication number: CN206182566U
Application number: CN201621231786.9U
Authority: CN
Inventors: 吕晓慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-17
Filing date: 2016-11-17
Publication date: 2017-05-24
Anticipated expiration: 2026-11-17

Abstract

The utility model discloses an airtight lunch -box, including the box body, lid, the mouth of box body set up the protruding stupefied of the high export edge of round on along, it is protruding that the whole of lid upwards forms the vault form, the lid set up the boss that the round scale is less than the inner wall scale of box body slightly all around, the boss outside sets up the round and corresponding with the protruding stupefied position of lid and can hold its male recess, sets up a O type sealing washer in the recess, the center of lid sets up the round platform, and the center of round platform sets up intercommunication big round hole and little round hole together, and handing -over department of big round hole and little round hole is inlayed to establish and is had mesoporous hemisphere silica gel pad, and silica gel stacks up, the great circle is downthehole prevents putting a diameter and be greater than the steel ball that the downthehole footpath of small circle is lighter than the downthehole footpath of great circle, and the upper surface of round platform sets up the pit, inlays the retaining ring in the pit, and the retaining ring center sets up the gas pocket. Compared with the prior art, the utility model discloses air pressure seal can not only be passed through, the buckle is need not to can take partial air out, can the relative extension time of guaranteeing the quality.

Description

A kind of airtight lunch box

Technical field

The utility model is related to food containers technical field, specifically a kind of airtight lunch box.

Background technology

There are the custom with meal in many working peoples, load onto food when get up in the morning in lunch box, are taken when lunch Out eat.At present, the lunch box on existing market is usually that lid is engaged with box body using buckle, such as Publication No. The utility model of CN201064406 discloses a kind of sealing plastic lunch box, and its structure includes lid and box body, and lid passes through at three Seal area is snapped together with box body, and seal area is that lid inwall is sealed with the face of inboard wall of cartridge at first, and sealing surface is highly 2.5mm-4mm, seal area is that lid bottom section is sealed with the face of box body top area at second, and seal f ace width is 3.5mm-7mm, seal area is that lid outer wall is sealed with the face of box body outer wall at the 3rd, and sealing surface is highly 3mm-5mm.But this The inner and outer air pressure of kind of food box is essentially identical, part cannot be carried out to the air in box body and is detached, and causes when weather is warmmer Wait food and easily become sour.

The content of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of airtight lunch box is disclosed, using following technology Scheme：

A kind of airtight lunch box, including plastics or glass material box body, the lid of the plastic material of injection moulding, it is special Levy and be：One circle is set in the opening's edge of described box body and is higher by the convex stupefied of opening's edge；The entirety of described lid is upwardly formed arched roof Shape is raised, and the surrounding of lid sets the boss that a circle scale is slightly smaller than the inwall scale of box body, and outside the boss sets a circle and box The convex stupefied position of lid is corresponding and can hold one O-ring seal of setting in the groove of its insertion, groove；The centrally disposed and box of lid The integrally formed round platform for extending to lid top and bottom of lid, the centrally disposed big hole and small sircle hole being connected together of round platform, The junction of big hole and small sircle hole is smooth hemispherical, and junction is embedded the semispherical silicon rubber cushion with mesopore, silicagel pad Prevent putting a steel ball with diameter greater than small sircle hole internal diameter less than big hole internal diameter in upper, big hole, the upper surface of round platform sets recessed Hole, inlays back-up ring, the centrally disposed stomata of described back-up ring in pit.

Compared with prior art, the utility model can not only be by pressurized seal, and without buckle, and energy extraction section is empty Gas, can relative extension shelf lives.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the sectional view of Fig. 1.

Fig. 3 is the partial enlarged drawing of left dashed box in Fig. 2.

Fig. 4 is the partial enlarged drawing of right dashed box in Fig. 2.

Specific embodiment

The technical scheme of the new shape of this practicality is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is this practicality a part of embodiment of new shape, rather than whole embodiments.Based on the embodiment in the new shape of this practicality, this The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality The scope of new shape protection.

It is, it is necessary to explanation in the description of the new shape of this practicality, term " " center ", " on ", D score, a left side ", right ", it is " perpendicular The orientation or position relationship of the instructions such as directly ", " level ", " interior ", outer " are, based on orientation shown in the drawings or position relationship, to be only For the ease of describing the new shape of this practicality and simplifying description, must have rather than the device or element for indicating or implying meaning specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the new shape of this practicality.Additionally, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.

, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in the description of the new shape of this practicality Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Can be two connections of element internal.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the new shape of this practicality.

Refer to shown in figure, a kind of airtight lunch box, including plastics or glass material box body 1, the plastics material of injection moulding The lid 2 of matter, it is characterised in that：One circle is set in the opening's edge 11 of described box body 1 and is higher by convex stupefied the 12 of opening's edge 11；Described box The entirety of lid 2 is upwardly formed arched roof shape projection, and the one circle scale of surrounding setting of lid 2 is slightly smaller than the convex of the inwall scale of box body 1 Platform 21, the outside of boss 21 sets one and encloses groove 22 that is corresponding to convex stupefied 12 position of lid 2 and can holding its insertion, is set in groove 22 Put an O-ring seal 3；The integrally formed round platform 23 for extending to lid top and bottom of the centrally disposed and lid 2 of lid 2, circle The junction of the centrally disposed big hole 231 and small sircle hole 232 being connected together of platform 23, big hole 231 and small sircle hole 232 is Smooth hemispherical, junction is embedded the semispherical silicon rubber cushion 4 with mesopore, prevents putting one in silicagel pad 4, in big hole 231 Steel ball 5 with diameter greater than the internal diameter of small sircle hole 232 less than the internal diameter of big hole 231, the upper surface of round platform 23 sets edge in pit, pit Embedding back-up ring 6, the centrally disposed stomata 61 of described back-up ring 6.

When using, after food is placed in box body, cover lid, the lid that then will be heaved press down it is several under, in box body Partial air be just extracted and box body and lid are sealed by atmospheric pressure, now lid sink.

Claims

1. a kind of airtight lunch box, including plastics or glass material box body, the lid of the plastic material of injection moulding, its feature It is：One circle is set in the opening's edge of described box body and is higher by the convex stupefied of opening's edge；The entirety of described lid is upwardly formed arched roof shape Projection, the surrounding of lid sets the boss that a circle scale is slightly smaller than the inwall scale of box body, and outside the boss sets a circle and lid Convex stupefied position it is corresponding and can hold an O-ring seal is set in the groove of its insertion, groove；The centrally disposed and lid of lid The integrally formed round platform for extending to lid top and bottom, the centrally disposed big hole and small sircle hole being connected together of round platform, greatly The junction of circular hole and small sircle hole is smooth hemispherical, and junction is embedded the semispherical silicon rubber cushion with mesopore, in silicagel pad, Prevent putting a steel ball with diameter greater than small sircle hole internal diameter less than big hole internal diameter in big hole, the upper surface of round platform sets pit, Back-up ring, the centrally disposed stomata of described back-up ring are inlayed in pit.