CN203952706U

CN203952706U - Portable type heat insulating cutlery box

Info

Publication number: CN203952706U
Application number: CN201420399059.8U
Authority: CN
Inventors: 吕石部
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-07-19
Filing date: 2014-07-19
Publication date: 2014-11-26
Anticipated expiration: 2024-07-19

Abstract

The utility model discloses a kind of portable type heat insulating cutlery box, is made up of cutlery box, lid and handle.Cutlery box comprises main cartridge and middle level box body, forms by shell and internal layer container.Internal face below internal layer container opening generates shape of threads projection, and lid and middle level box bottom have connecting portion and generate helicitic texture.The shape of threads projection of the screw thread of connecting portion and container is connected.Generate depressed part and through hole, gap in the bottom surface of lid and middle level box body, a sphere elastic sealing strip is installed on through hole, form air pressure balance structure.Connecting portion is installed elastic seal ring, for sealing internal layer container.The utility model cutlery box has good heat insulation effect, and operation is safer on using, convenient.

Description

Portable type heat insulating cutlery box

Technical field

The utility model relates to the lunch box product scope of food carrying, particularly has the heat-preservation lunch box of automatic adjusting sealing effectiveness.

Background technology

[0002] lunch box product is the common splendid attire of daily life and the container that carries food, food.Conventionally be furnished with lid and carry out airtight container, ensure the health of food in carrying process, and keep within a certain period of time the temperature of food.Use at present more Multilayer lunch box product, the connection between its each layer of box body, adopts the structure of locker more: by being arranged on the snap close of upper strata box body or lid, snapping in the outside wall surface of lower floor's box body and form.Adopt the lunch box product of this syndeton, in the convenient performance of thermal-insulating sealing effect and operation, be often difficult to take into account: same specifically, the middle compartment of portioned product does not have hermetically-sealed construction, rely on contact sealing between compartment, heat insulation effect is poor; But partition easily.The middle compartment of portioned product arranges black box in addition, and sealing thermal insulation degree is high.But also there is defect in this structure: after internal tank temperature declines naturally, air pressure diminishes, under the impact of active force forming at container inside and outside draught head, container and its its opening of sealing between compartment, be difficult to separate above, phenomenon occurs " not opening " between compartment.Even appear at and open in lunch box process because dynamics is difficult to control, food is spilt, scald user's contingency.

Summary of the invention

The purpose of this utility model is to overcome that existing snapping combined lunch box does not seal or hermetically-sealed construction is unreasonable, connect the defect loose, heat-insulating property is poor between assembly.A kind of heat-preservation lunch box is provided, between its box body, adopt helicitic texture to be connected between box body and lid, and the hermetically-sealed construction of automatic adjusting cutlery box inside and outside air pressure balance is set, easy to use, safe.

For achieving the above object, adopt following technical scheme: a kind of portable type heat insulating cutlery box, comprises main cartridge, lid and handle.Main cartridge is column, is made up of shell and internal layer container, and the internal face below internal layer container opening generates shape of threads projection.Handle is arranged on lid.Lid bottom surface generates cylinder or columniform connecting portion, and connecting portion lateral surface generates screw thread.The external diameter of connecting portion and internal layer container opening coincide, and lid is connected and is connected on main cartridge by the shape of threads projection of screw thread and container.The groove of annular together with forming between connecting portion and lid outer wall, groove is installed an elastic seal ring.

Heat-preservation lunch box of the present utility model adopts container to be inlaid in the double-decker of enclosure, and middle cavity, as heat-insulation layer, can keep the temperature of institute's internal tank preferably.When use, lid is placed on main cartridge opening, rotation lid, makes the shape of threads projection formation screw occlusion of screw thread on connecting portion and main cartridge.This syndeton, has fixed, the exsertile feature of sealing.In the bottom surface of lid, the position corresponding with main cartridge sidewall arrange sealing ring, makes heat-insulating property promote a level.

Preferably, the portable type heat insulating cutlery box of said structure, the top surface of connecting portion inner side has a circular depression, generates a through hole and a linear gap in the middle of depressed part.One sphere elastic sealing strip, size coordinates depressed part, and edge is annular seal lip, and middle part connects an axostylus axostyle, end generating cone body or the orbicule of axostylus axostyle; Axostylus axostyle inserts in the through hole of lid, the surface of sealing lip laminating depressed part.Elastic sealing strip covers through hole and gap.

At the higher food of main cartridge splendid attire temperature, close lid and screw after, inside and the external world of main cartridge isolate completely.Along with the carrying out of natural heat dissipation, the decline of internal tank temperature, air pressure is also along with reduction.Now, air pressure and the inner pressure differential forming compared with low pressure that main cartridge outside is higher, can make lid be pressed on the opening of main cartridge.Now, lid is back-outed and will be become more difficult from main cartridge.Above-mentioned preferred structure, elastic sealing strip is installed on surface at lid, and generate linear gap, provide the path of an extraneous gas to internal tank circulation: because diaphragm seal is to have flexible sphere sheet shaped piece, in the time of the air pressure balance of main cartridge inside and outside, can seal internal layer container with the lip laminating depressed part surface at its edge; In the time that internal tank air pressure declines, outside gas, under more anticyclonic promotion, by linear gap, enters internal tank between diaphragm seal and depressed part surface.Thereby the air pressure that ensures container inside and outside remains at the state of balance.Under any circumstance, lid all can screw out from main cartridge like a cork.

Further, the portable type heat insulating cutlery box of said structure, also comprises at least one middle level box body, and middle level box body is made up of shell and internal layer container, and the internal face below internal layer container opening generates shape of threads projection.Shell bottom surface generates cylinder or cylindrical connecting portion, and connecting portion lateral surface generates screw thread.The groove of annular together with forming between connecting portion and shell side wall, groove is installed an elastic seal ring.

The middle level box body that increases varying number, can provide more space, and the food of splendid attire different cultivars meets the requirement of having dinner.The internal layer container of middle level box body generates shape of threads projection, shell generates connecting portion and screw thread, as the structure being connected with lid, main cartridge, has advantages of equally easy to connect, good seal performance.

Be more preferably, the portable type heat insulating cutlery box of said structure, middle level box bottom, connecting portion inner side have a circular depression, generate a through hole and a linear gap in the middle of depressed part.One sphere elastic sealing strip, size coordinates depressed part.Its edge is annular seal lip, and middle part connects an axostylus axostyle, end generating cone body or the orbicule of axostylus axostyle.Axostylus axostyle inserts in the through hole of middle level box body, the surface of sealing lip laminating depressed part.Elastic sealing strip covers through hole and gap.

The connecting portion setting of middle level box body and the air pressure balance hermetically-sealed construction of lid same structure, for other middle level box body of its underpart or the internal layer container of main cartridge provide an approach that keeps inside and outside air pressure balance, eliminate owing to being subject to the impact of draught head and make to be difficult between each layer box body the defect breaking.Connection between each assembly, box body and partition are become and be more prone to operation, be applicable to various crowds' use.

Portable type heat insulating cutlery box of the present utility model, compact conformation, the more existing multi-layer heat preserving lunch box of sealing thermal insulation effect is more obvious.Diaphragm and the current path structure of the maintenance air pressure balance arranging, can keep the inside and outside pressure balance of container automatically, takes into account the convenient function of heat insulation effect and use.A kind of novel structure, product that practicality is good.

Brief description of the drawings

Fig. 1 is the stereogram of embodiment heat-preservation lunch box.

Fig. 2 is that the A-A of Fig. 1 is to cutaway view.

Fig. 3 is the exploded perspective view of embodiment lid bottom surface.

Fig. 4 is the axial cutaway view of diaphragm seal.

Specific embodiment

Below in conjunction with a kind of preferred embodiment of the present invention is described with reference to accompanying drawing.

A kind of double-layer heat insulation cutlery box, as shown in Figure 1.Formed by main cartridge 1, middle level box body 2 and lid 3, handle 4 is installed on lid.Referring to accompanying drawing 2, main cartridge is made up of cylindrical shell 10 and setting-in internal layer container 11 in the enclosure.Middle level box body is made up of the cylindrical shell identical with main cartridge external diameter 20, internal layer container 21.The internal layer container of main cartridge and middle level box body, generates and has shape of threads projection 5 separately on the internal face below opening at it.The bottom surface of lid and middle level box body has respectively a columniform connector 6 and 7, and the lateral surface of connector generates helicitic texture 8.The groove 9 of annular together with forming between connector and lid outer wall, groove is installed an elastic sealing strip 12.The connector of lid covers the opening at middle level box body, and after rotation lid, the shape of threads projection of threaded engagement opening part, is connected on the box body of middle level lid.Middle level box body is connected with main cartridge with same connected mode again.

Referring to accompanying drawing 2,3, at the bottom surface of lid and middle level box body, the inner side of connector, generate respectively a truncated cone-shaped projection 13, the end face of projection is a depressed part 14.The center of depressed part forms a through hole 15 and gap 16.Through hole is used for installing diaphragm seal 17.Diaphragm seal is sphere membrane-like, adopts silica gel material to make.Its center connects an axostylus axostyle 18, and the end of axostylus axostyle is Rotary-table fixture block, and its diameter is larger than through hole.The edge of diaphragm is annular sealing lip 19.When installation, axostylus axostyle, through through hole 15, Rotary-table fixture block rests on the opposite side of through hole, and diaphragm seal is just fixed on through hole.The surface of sealing lip laminating depressed part, forms sealing function.

After heat-preservation lunch box splendid attire food of the present utility model, when the temperature of internal layer container progressively declines, when gas pressure is less than external pressure, outside air is by gap 16, push the lip 19 of diaphragm seal and the joint place on depressed part surface open, enter internal layer container, thereby keep the inside and outside air pressure balance of container.Like this, just there will not be owing to there is draught head inside and outside box body the phenomenon that each assembly " adhesion " of adjacent connection is got up.Therefore, operation is separately very easy by each layer of cutlery box.

Above, with reference to the accompanying drawings of preferred embodiment of the present utility model, but the utility model is not limited only to the structure of embodiment.Allly belong to various amendments in the technology category that the utility model claim explains, be equal to and replace and increase, for example, directly form depressed part in the bottom surface of lid or middle level box body, seal membrane is installed; The connecting rod end of seal membrane is formed as club shape, etc., certainly also belong to the technical scope that the utility model is set forth.

Claims

1. a portable type heat insulating cutlery box, comprises main cartridge, lid and handle, and main cartridge is column, is made up of shell and internal layer container, and handle is arranged on lid, it is characterized in that,

Internal face below internal layer container opening generates shape of threads projection; Lid bottom surface generates cylinder or columniform connecting portion, and connecting portion lateral surface generates screw thread; The external diameter of connecting portion and internal layer container opening coincide, and lid snaps connected on main cartridge by the shape of threads projection of screw thread and container;

The groove of annular together with forming between connecting portion and lid outer wall, groove is installed an elastic seal ring.

2. portable type heat insulating cutlery box according to claim 1, is characterized in that,

The top surface of connecting portion inner side has a circular depression, generates a through hole and a linear gap in the middle of depressed part;

One sphere elastic sealing strip, size coordinates depressed part, and edge is annular seal lip, and middle part connects an axostylus axostyle, end generating cone body or the orbicule of axostylus axostyle; Axostylus axostyle inserts in the through hole of lid, the surface of sealing lip laminating lid depressed part; Elastic sealing strip covers through hole and gap.

3. according to the portable type heat insulating cutlery box one of claim 1 or 2 Suo Shu, it is characterized in that, also comprise at least one middle level box body, middle level box body is made up of shell and internal layer container, and the internal face below internal layer container opening generates shape of threads projection; Shell bottom surface generates cylinder or cylindrical connecting portion, and connecting portion lateral surface generates screw thread; The groove of annular together with forming between connecting portion and shell side wall, groove is installed an elastic seal ring.

4. portable type heat insulating cutlery box according to claim 3, is characterized in that,

Described middle level box bottom, connecting portion inner side have a circular depression, generate a through hole and a linear gap in the middle of depressed part;

One sphere elastic sealing strip, size coordinates depressed part, and edge is annular seal lip, and middle part connects an axostylus axostyle, end generating cone body or the orbicule of axostylus axostyle; Axostylus axostyle inserts in the through hole of middle level box body, the surface of sealing lip laminating depressed part; Elastic sealing strip covers through hole and gap.