CN2388683Y - Air billboard - Google Patents

Abstract

The utility model relates to a square balloon which can be used as an air billboard. The square balloon is composed of an outer sleeve and an inner chamber. The inner chamber of the square balloon is composed of a central inflating post which has a bigger diameter and peripheral inflating posts which have smaller diameters.

Description

The sky writing board

The utility model relates to a kind of novel inflation advertising carrier, and outward appearance is square,

Its big garden of appearance profile polyphyly arc of existing inflation advertisement is difficult to produce big plane.For addressing this problem, one of institute's employing way is, at the place, required plane of inflation body inside with many ropes with the two sides pulling to prevent the inflating excessive evagination of back plane, can not obtain desirable square appearance but do like this, also should not go up to the air, because when volume is big, be out of shape obviously like that.Two of way is it is divided into inner bag and overcoat two parts, and inner bag to be formed by a plurality of inflation column combinations, shown in Chinese patent application 93238703.9.Can obtain comparatively desirable appearance though do like this, (being surface area and the ratio of its volume) is excessive because the surface to volume ratio of inner bag, thereby also can't obtain enough lift after filling hydrogen, can not go up to the air.

The purpose of this utility model provides a kind of inner bag with less surface to volume ratio, with the novel balloon that can keep comparatively desirable square appearance.

The purpose of this utility model is achieved in that by inner bag and overcoat to be formed, and inner bag is made up of diameter bigger central gas column and the less peripheral gas column of some diameters.

Such structure is compared the surface to volume ratio that reduces inner bag significantly with existing Square balloon.Simplified production technology, also can make and after irritating hydrogen or helium, can obtain big lift.

As shown in the figure: (3) are central gas column, are main inflation unit, and (1) is overcoat, and (5) are peripheral unit, and are both adjacent with (3), play the effect of supporting square gabarit again, and (2) are valve, and (4) are for dividing gas column.

But inflation both each gas column is filled separately, also can be the peripheral gas column of a valve (2) and each with dividing gas column (4) UNICOM.Window being arranged with corresponding outer the putting in valve position, if need lift-off, stay cord can be fixed on the central gas column, from outside put and bore a hole and go out, overcoat is not subjected to pulling force like this, thus the profile of being kept perfectly, means solid phase such as available adhesive tape is to the position between (3) and (5).

Claims (1)

1, a kind of Square balloon that can be used as the sky writing board is made up of inner bag and overcoat, it is characterized in that; Inner bag is made up of diameter bigger central authorities' inflation post and the less periphery inflation post of some diameters.

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