CN203168274U

CN203168274U - Sealed plastic lunch box

Info

Publication number: CN203168274U
Application number: CN 201320130671
Authority: CN
Inventors: 李木强
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-21
Filing date: 2013-03-21
Publication date: 2013-09-04
Anticipated expiration: 2023-03-21

Abstract

The utility model provides a sealed plastic lunch box. The sealed plastic lunch box comprises a box body and a box cover, wherein the box body comprises a box wall and a box bottom, the box cover comprises a main cover surface, an inner cover edge, a top cover edge and an outer cover edge which are integrally connected, the edge of the main cover surface is directly connected with the lower edge of the inner cover edge, the inner cover edge, the top cover edge and the outer cover edge are integrally connected to form an inverted U-shaped sealed groove, and when the box cover is covered on the box body, the top end of the box wall is tightly embedded in the inverted U-shaped sealed groove of the box cover; and the inner cover edge and the upper end of the box wall are in interference fit, and except for the corner part of the lower end of the inner cover edge, the magnitude of interference of each part of the inner cover edge is gradually increased from the upper edge to the lower edge. According to the sealed plastic lunch box provided by the utility model, the box body and the box cover are well matched with each other in a sealing manner, and the box cover is easy to open or close.

Description

The sealed plastic cutlery box

Technical field

The utility model belongs to the technical field of food container containing, is specifically related to a kind of sealed plastic cutlery box for splendid attire food.

Background technology

The plastics cutlery box is used for food container, comprises box body and lid, and box body comprises at the bottom of box wall and the box.Cutlery box can adopt making such as foamed plastic or common plastics.When the plastics cutlery box is used for splendid attire soup juice class I liquid I food, the particular importance that seems of the sealing property between lid and the box body.This be because, cutlery box is in the process of portably using, unavoidably can tilt, if sealing property is bad, then soup juice can flow out along slit between lid and the box body, flows to the box body outside, and makes box wall outer surface be stained with soup juice, after cutlery box that outer surface is stained with soup juice was placed on desktop, soup juice can be slavered over downwards again and be polluteed desktop; The cutlery box that is stained with soup juice when lateral surface is held in both hands after in the hand by the diner, can pollute palm again.

Have following two kinds of different problems aspect being sealed and matched between the box body of existing plastics cutlery box on the market and the lid: first kind of problem is to be sealed and matched not sternly between box body and the lid, causes soup juice class I liquid I food to leak outside easily; Though second kind of problem is to be sealed and matched sternlyer between box body and the lid, the comparison difficulty is opened or covered to lid.

The utility model content

The purpose of this utility model is to overcome above-mentioned shortcoming and a kind of sealed plastic cutlery box is provided, and its box body and lid are sealed and matched, and lid is opened or covered easily.

Its purpose can realize by following scheme: sealing plastics cutlery box comprises box body and lid, box body comprises at the bottom of box wall and the box, it is characterized in that, lid is formed by connecting along one by main capping, inner cap edge, top cover edge, enclosing cover, wherein, the edge of main capping directly connects the lower edge on inner cap edge, and inner cap edge, top cover edge, enclosing cover connect and the seal groove of formation inverted u-shaped along one, after box body and lid covered, the top of described box wall closely was embedded in the seal groove of inverted u-shaped of lid; Described inner cap along and box wall upper end form interference fit, except inner cap along the rotation angle position of lower end, inner cap becomes big gradually along the magnitude of interference at each position from the upper edge to the lower edge.

Box body and lid can adopt foamed plastics to make.

Box body and lid can be circle.

The upper edge on inner cap edge and box wall upper end value of interference fit are zero.

Main capping is formed with ventilative aperture.

Swell with respect to fringe region in main cover center zone.

The utlity model has following advantage and effect:

1, inner cap of the present utility model is along forming interference fit with box wall upper end, and the magnitude of interference becomes big gradually from the upper edge on inner cap edge to the lower edge, it is the magnitude of interference maximum of the lower edge on inner cap edge, and the edge of main capping directly connects the lower edge on inner cap edge, therefore main capping can directly provide the radially support power of centrifugal direction for the lower edge on inner cap edge, and the lower edge on inner cap edge can apply enough radial pressures and form excellent sealing box wall upper end.When lid or box body are foamed plastic, then owing to its soft material makes sealing property better.

2, because local value of interference fit bigger (rather than all comprehensive interference fit of contacts site) just, thus the lid unlatching or cover relatively easy.

3, in the process of covering, will inevitably cause that the box cavity space dwindles owing to lid is descending, the air compression, this also is one of conventional seals lid reason of closing difficulty.And the utility model is formed with ventilative aperture in main cover center zone, and therefore in the process of covering, air can be discharged by air-vent, therefore be easy to cover, and after covering, the hot-air that continues to expand that constantly is heated can continue to discharge.On the other hand, because this air-vent is positioned at main cover center zone, even therefore box body tilts, soup juice generally can not flow out from this air-vent yet yet.

4, swell with respect to fringe region in main cover center zone, therefore, air-vent exceeds one section vertical distance than the edge of main capping, means that air-vent also must exceed one section vertical distance than soup juice face, and this is conducive to prevent that soup juice from spilling from air-vent in the process of jolting.Even have micro-soup juice to spill from air-vent, also just rest on main capping, and can not pollute cutlery box side, desktop, hand.

Description of drawings

Fig. 1 is the sealed structural representation after the box body of a kind of specific embodiment of the utility model and lid cover.

Fig. 2 is the local structure for amplifying schematic diagram of E among Fig. 1.

Fig. 3 is that the inner cap edge concerns schematic diagram with box wall interference fit among Fig. 2.

Fig. 4 is lid structural representation among Fig. 1.

Fig. 5 is local enlarged diagram among Fig. 4.

The specific embodiment

Fig. 1, sealed plastic cutlery box shown in Figure 2 comprise box body and lid 2, and box body and lid 2 adopts foamed plastics to make, and box body comprises at the bottom of box wall 11 and the box 12; Box body and lid are circular.

Fig. 4, shown in Figure 5, lid 2 by main capping, inner cap along 23, top cover along 24, enclosing cover is formed by connecting along 25 one, main capping comprises main cover center zone 21 and main capping fringe region 22, main cover center zone 21 is with respect to main capping fringe region 22 protuberances.Main cover center zone is formed with the ventilative aperture 26 of diameter 1.5mm.The fringe region 22 of main capping directly connects the lower edge of inner cap along 23, inner cap along 23, Fig. 1, shown in Figure 2, top cover along 24, enclosing cover connects and forms the seal groove 27 of inverted u-shaped along 25 one, after box body and lid 2 covered, the top 110 of described box wall closely was embedded in the seal groove 27 of inverted u-shaped of lid.Inner cap forms interference fit along 23 with box wall 11 upper ends, in Fig. 3, and cross-hauling position (being the formed closed area of ABCA line) expression interference fit position.In Fig. 3, inner cap is zero along 23 upper edge (shown in A point among Fig. 3) with box wall 11 upper end value of interference fit; Except inner cap along the rotation angle position (position shown in BC camber line among Fig. 3) of 23 lower ends, inner cap becomes from the upper edge to the lower edge greatly gradually along the magnitude of interference at each position, namely the inner cap among Fig. 3 becomes big gradually along the magnitude of interference from the A point to B point position.

In above-described embodiment, box body also can adopt common plasticses such as PP, PE, PS to make.

Claims

1. sealed plastic cutlery box, comprise box body and lid, box body comprises at the bottom of box wall and the box, it is characterized in that: lid is formed by connecting along one by main capping, inner cap edge, top cover edge, enclosing cover, the edge of main capping directly connects the lower edge on inner cap edge, inner cap connects and forms the seal groove of inverted u-shaped along one along, top cover along, enclosing cover, and after box body and lid covered, the top of described box wall closely was embedded in the seal groove of inverted u-shaped of lid; Described inner cap along and box wall upper end form interference fit, except inner cap along the rotation angle position of lower end, inner cap becomes big gradually along the magnitude of interference at each position from the upper edge to the lower edge.

2. sealed plastic cutlery box according to claim 1 is characterized in that: box body and the making of lid employing foamed plastic.

3. sealed plastic cutlery box according to claim 1 and 2 is characterized in that: box body and lid are for circular.

4. sealed plastic cutlery box according to claim 1 and 2 is characterized in that: upper edge and the box wall upper end value of interference fit on inner cap edge are zero.

5. sealed plastic cutlery box according to claim 1 and 2, it is characterized in that: main cover center zone is formed with ventilative aperture.

6. sealed plastic cutlery box according to claim 5, it is characterized in that: swell with respect to fringe region in main cover center zone.