CN2917506Y

CN2917506Y - Stainless steel vacuum insulating bottle

Info

Publication number: CN2917506Y
Application number: CN 200620056019
Authority: CN
Inventors: 陈安涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-13
Filing date: 2006-03-13
Publication date: 2007-07-04
Anticipated expiration: 2016-03-13

Abstract

The utility model relates to a stainless-steel vacuum flask, which is made by inner pot and outer shell. The outer shell consists of upper part and lower part, with an inward-contracted neck is provided after rolled at opening of the lower part to favor junction of the upper part and lower part as well as improve rigidity of the opening to prevent distortion when welding the two parts of the outer shell. Space in the inner pot is vacuumized by copper tube on bottom of the shell, which forms a vacuum layer. The outer shell is polished to eliminate ring seam caused in welding the upper part and lower part, which makes appearance of the vacuum flask more attractive. The bottom of the shell is concave, and the copper tube is hind by covering a plastic bottom. The utility model solves department of bottom cover of traditionally vacuum flask, saves material and lowers cost.

Description

The stainless-steel vacuum vacuum flask

Affiliated technical field

The utility model relates to a kind of stainless steel thermo jug, especially a kind of vacuum heat-preserving kettle of double-layer stainless steel structure.

Background technology

At present, popular double-layer stainless steel Vacuum insulation bottle is made up of inner bag and shell, by vacuumizing copper pipe with the state that is evacuated of the space between inner bag and the shell.Yet because it is exposed outside to vacuumize copper pipe, generally also need add a stainless steel bottom, snap together, will vacuumize copper pipe and imply wherein with the shell of stainless-steel vacuum vacuum flask in the bottom of stainless-steel vacuum vacuum flask.So not only waste stainless steel material, also may simultaneously at bottom and shell fastening place, an annulus be arranged, also make the stainless-steel vacuum vacuum flask attractive in appearance inadequately because bottom and shell fasten the problem that does not tightly cause bottom to come off easily.

Summary of the invention

In order to solve the problem that existing double-layer stainless steel Vacuum insulation bottle bottom comes off easily, the utility model provides a double-layer stainless steel Vacuum insulation bottle, this thermo jug has not only solved the problem that the double-layer stainless steel Vacuum insulation bottle comes off easily, and saved stainless steel material, make the richer aesthetic feeling of stainless steel vacuum flask simultaneously.

The technical scheme that its technical problem that solves the utility model adopts is: make double-layer stainless steel Vacuum insulation bottle inner bag with stainless steel materials, make the shell upper of double-layer stainless steel vacuum jug with corrosion resistant plate, inner bag and shell upper are alignd and are welded to connect at oral area.Make the heat preservation pot of bilaminar stainless steel outer casing underpart with corrosion resistant plate again, the shape of outer casing underpart be one in the bottom indent, be formed on the interior necking down of outer casing underpart oral area by modes such as roll extrusion at oral area, strengthened the rigidity of outer casing underpart oral area, make it when being welded to connect, be difficult for deforming, be convenient to shell upper and outer casing underpart fastening simultaneously with shell upper.The size of interior necking down shoulder equates with the wall thickness of shell, compress after being enclosed within shell upper on the outer casing underpart then, method by argon arc welding links into an integrated entity the top of shell and the bottom of shell, vacuumizes copper pipe with the state that is evacuated of the space between inner bag and the shell by outer casing bottom again.

Because outer casing bottom concaves, the exposed part that vacuumizes copper pipe does not protrude the shell bottom most portion.Be fastened on outer casing bottom with a plastic plate, stainless steel is vacuumized in copper pipe lies in.Shell to the double-layer stainless steel Vacuum insulation bottle carries out polishing, and the girth weld that stays of the welding of shell upper and bottom will disappear after polishing like this, and is local the same with other of case surface, forms a perfect integral body.

The beneficial effects of the utility model are, have solved the problem that traditional double-deck stainless-steel vacuum vacuum flask bottom comes off easily, have saved stainless steel material, have saved cost, have improved the aesthetic feeling of the external sight of kettle simultaneously.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a sectional structural map of the present utility model.

Fig. 2 is the utility model front view.

Fig. 3 is the half-sectional view of inner bag.

Fig. 4 is the profile of shell upper.

Fig. 5 is the half-sectional view of outer casing underpart.

Fig. 6 is an A portion enlarged drawing.

Among the figure 1, inner bag; 2, shell upper; 3, outer casing underpart; 4, vacuum layer; 5, vacuumize copper pipe; 6, stator; 7, plastic cement bottom.

The specific embodiment

In Fig. 1, inner bag (1) shape is inserted in the shell upper (2) as shown in Figure 3, and in oral area alignment, the welding by oral area is connected inner bag (1) with shell upper (2); Shell upper (2) buckled in the outer casing underpart (3) compress, by the argon arc welding mode shell upper (2) and outer casing underpart (3) are connected as one, by vacuumizing copper pipe (5) with the state that is evacuated of the space between shell and the inner bag (1), form vacuum layer (4), again plastic cement bottom (7) is fastened on the bottom of thermo jug, will vacuumizes copper pipe (5) and imply wherein.A stator of shoulder welding (6) is used for and being connected of plastic cover on shell.The shape of shell upper (2) as shown in Figure 4.The shape of outer casing underpart (3) as shown in Figure 5, be processed into interior necking down at its oral area by modes such as roll extrusion, the width of interior necking down shoulder equals the wall thickness of shell upper (2), slit when buckling into outer casing underpart (3) in order to reduce shell upper (2), can make it become the right angle to the little garden angular milling one at necking down shoulder place.The shell of vacuum flask is carried out polishing, eliminate because the circular weld of argon arc welding formation when connecting shell upper (2) and outer casing underpart (3), make the richer aesthetic feeling of outward appearance of thermo jug.

Claims

1, a kind of double-layer stainless steel Vacuum insulation bottle is made up of inner bag and shell, and with the state that is evacuated of space between inner bag and the shell, it is characterized in that: shell is made of upper and lower two parts, and two parts are by being welded to connect up and down.

2, double-layer stainless steel Vacuum insulation bottle according to claim 1 is characterized in that: its outer casing underpart oral area has the interior necking down that forms after the roll extrusion, and the size of interior necking down shoulder equals the wall thickness of shell upper.

3, according to claims 1 described double-layer stainless steel Vacuum insulation bottle, it is characterized in that: its outer casing bottom concaves, and makes to vacuumize copper pipe and do not expose outer casing bottom, is fastened on outer casing bottom with a plastic cover, and it is implicit wherein to vacuumize copper pipe.