CN2374477Y

CN2374477Y - Adjustable automatic inner plug

Info

Publication number: CN2374477Y
Application number: CN 99226298
Authority: CN
Inventors: 张少杰
Original assignee: SHANGHAI SHIMIZU HOUSEWARES MANUFACTURING Co Ltd
Current assignee: SHANGHAI SHIMIZU HOUSEWARES MANUFACTURING Co Ltd
Priority date: 1999-04-14
Filing date: 1999-04-14
Publication date: 2000-04-19
Anticipated expiration: 2009-04-14

Abstract

The utility model relates to an adjustable automatic inner plug, which comprises a plug body, a movable plug core component, and an adjustable expansion loop, wherein, the outer round face of the lower part of the plug body is provided with screw threads which are matched with a regulating nut; the expansion loop is arranged between the regulating nut and the plug body. The utility model can compensate the non-circularity of a bottle opening and the common difference of inner opening diameter through adjusting the outer diameter of the expansion loop to reach full sealing with the bottle diameter, and the utility model is especially suitable for bottles with an outer cover, such as a thermos bottle, etc.

Description

A kind of adjustable interior automatically plug

The utility model relates to a kind of bottle stopper, is specially adapted to have the bottle of enclosing cover, as vacuum bottle.

Present vacuum bottle as 2L (being commonly called as 5 pounds) Dumpage type vacuum bottle, generally is equipped with an enclosing cover, plug in the cork.During use, take off enclosing cover earlier, take off plug in the cork again, can pouring, cumbersome.Chinese patent 97206838.9 discloses a kind of interior automatically plug, is plugged with a motion stops core in this, shuts enclosing cover, and the plug core seals water outlet automatically; Take off enclosing cover, the plug core is opened water outlet automatically, therefore need not take off interior plug, gets final product pouring, operates fairly simple.But because vacuum bottle generally all adopts glass refills; because the relation of glass refills production technology; its bottleneck is not the circle of standard; its interior bore also allows the tolerance of positive and negative 1mm simultaneously; therefore general bottle stopper often is difficult to reach comparatively ideal closed intensity with bottleneck; defectives such as interior plug leaks take place in regular meeting so in use, also influence the insulation usefulness of vacuum bottle.

The purpose of this utility model is to propose a kind of adjustable interior automatically plug, by filling in the position that seals a bottle in automatically and set up an elastic expansion circle that external diameter is adjustable former, the change of nationality expansion loop external diameter compensates the tolerance of out of roundness with the interior bore of bottle of bottleneck, make the more driving fit of bottle stopper and bottleneck, thereby the defective that plug leaks in overcoming, during as the insulation bottle inner plug, also can improve the insulation usefulness of vacuum bottle.

Of the present utility model a kind of adjustable automatically in plug, comprise a cock body, a motion stops core assembly, and in described cock body lower end, the position of filling in bottleneck is provided with an external diameter and internal diameter of the bottleneck is complementary and the adjustable elastic expansion circle of its external diameter.

Now the utility model is described in further detail for an embodiment and in conjunction with its accompanying drawing.

Structure cutaway view (opening) when Fig. 1 is used as the insulation bottle inner plug for the utility model;

Fig. 2 is the closed condition of the interior plug of last figure.

Fig. 1 for the utility model be used for vacuum bottle a kind of adjustable automatically in plug, it comprises cock body 1, motion stops core assembly 3 and adjustable expansion plug 2.Cock body 1 is made up of obturating plug 11 and flap 12, is the cavity of making water exit in the cock body 1, and this cavity lower port 11a communicates with vacuum bottle glass liner oral area (not shown), and obturating plug 11 1 sides are provided with a mouth of a river 11b.Motion stops core assembly 3 comprises the plug core 31 of a described water exit capable of blocking, and plug core 31 ends are provided with seal ring 35, can make plug core 31 produce the pressure cap 33 of displacement, is equipped with a big spring 32 that plug core 31 is resetted between plug core 31 and pressure cap 33.Adjustable expansion plug 2 is made of with setting nut 21 the screw thread 11C on the obturating plug 11 bottom peripheries, expansion loop 22, and setting nut 21 is spun on the obturating plug screw thread 11C, is provided with described expansion loop 22 between nut 21 and the obturating plug 11.Expansion loop 22 is made by whippy silaatic, and its external diameter periphery is provided with some ring muscle 22a that raise up.

Between plug core 31 and gag 12, be provided with a little spring 34, in the time of in off position, can make plug core 31 be subjected to a power that compresses downwards, can improve the sealing effect of 31 pairs of water exits of plug core like this.

In use, when vacuum bottle enclosing cover (not shown) screwed, pressure cap 33 pressurizeds moved down, and drove plug core 31 and moved down, and the water exit of sealing cock body 1, cut off water exit and pouring mouth 11b path (as Fig. 2), and bottleneck can not water outlet; When taking off enclosing cover, the pressure on the pressure cap 33 is eliminated, and under the effect of spring 32, pressure cap automatically resets, and water exit is opened, and plug can direct pouring (as Fig. 1) in need not taking off this moment.When filling in bottleneck as interior plug, expansion loop 22 cooperates too loose or tension with internal diameter of the bottleneck, can regulate the pressurized degree at expansion loops 22 two ends by turn setting nut 21, change the size of expansion loop 22 external diameters, to reach the best sealing property with bottleneck.

The utility model has the advantage of, by under automatic inner plug, setting up an adjustable expanding circle After, compensated the franchise of shape defect and the caliber size of bottleneck, make bottle stopper and bottle sealing More complete. When this bottle stopper is used for vacuum flask, can thoroughly eliminate leaking of interior plug, and improve The high insulating efficiency of vacuum flask.

Claims

1, a kind of adjustable automatically in plug, comprise a cock body, a motion stops core assembly, the position that it is characterized in that filling in described cock body lower end bottleneck is provided with an external diameter and internal diameter of the bottleneck is complementary and the adjustable elastic expansion circle of its external diameter.

2, as claims 1 described interior plug, it is characterized in that the lower end periphery of described cock body is provided with screw thread, a setting nut is assigned on this screw thread, is provided with described expansion loop between this setting nut and described cock body.

3, plug in as claimed in claim 1 or 2 is characterized in that described expansion loop made by whippy silaatic, and its external diameter circumference is provided with the ring muscle of some projectioies.

4, interior plug as claimed in claim 1 is characterized in that being provided with a little spring between described plug core and described cock body.