CN1759917A - Apparatus for gastight sealing and detachable fastening of an inflated air balloon - Google Patents

Abstract

The apparatus has a fork ( 4 ), attached to one end of a rod ( 1 ) and the fork carrying over its both arms a ring ( 5 ), which is provided with an opening ( 8 ). A stiff tongue ( 6 ), which extends up to the middle of the ring, is placed on the ring ( 5 ) in a way that it can be swivelled. The length of the tongue ( 6 ) is approximately 1 to 2 mm more than the distance (a) between the revolving axis (A-A ) of the ring ( 5 ) and the base point ( 10 ) of the fork ( 4 ). Below the fork ( 4 ), the rod ( 1 ) carries noses ( 9 a/ 9 b), provided with slots (E), for clamping the balloon neck (H). After the balloon neck (H) has been inserted through the opening ( 8 ) in the ring ( 5 ), which has been swivelled by approximately 90 degrees, the tongue ( 6 ) snaps over the base point ( 10 ) of the fork ( 4 ) and prevents thereby the springing back of the ring ( 5 ) to its initial position. With this, a single part production, a secure fastening and a space saving storage become feasible.

Description

Be used for airtight sealing and the fastening device of dismoutability through the balloon of gas overcharging

The present invention relates to be used for airtight sealing and the fastening device of dismoutability through the balloon of gas overcharging, it has a head member and a bar that is used for the clamping balloon, and this bar is connected with head, to be used to carry balloon.

Know that many dissimilar devices that are used for fastening balloon are arranged, the metal forming manufacturing that this balloon strengthens with rubber or plastics, promptly so-called metallized plastics silver color balloon.

This balloon can have been bought, and a funnel shaped plastics body and a bar arranged, and this bar can insert in the body or be securely fixed on it.Funnel shaped plastics body for example comprises the enlarged portion and a columniform funnel neck of a taper, wherein, tapering part has a hole or a groove or an analog at least, so that through the charging neck and can pull outward through via hole or the groove the inside from funnel of the balloon of gas overcharging, then can being clamped Anywhere at the infundibulate body.

For example, by European communique 0221008 such device is disclosed.In the case, funnel shaped body has an opening, and it extends upward from the junction of columniform funnel neck, until the edge of funnel, and be used to insert balloon neck.In the case, for fastening balloon, the infundibulate body is pushed back by past on the neck of the preferably distortion of balloon, and is pushed open from charging joint against the body of balloon.

The balloon neck that stretches out outward from the infundibulate body just is pulled to the side later on, and bar then is pushed in the cylindrical funnel neck through the next door of groove, and thus, by the work of clip, balloon neck is clamped securely.

This fastening means does not need any special technical ability of hand, and makes balloon that reasonable supporting be arranged.Because the opening that extends along the whole length of infundibulate body is arranged, thereby produce a weak clamping action, make the bar of preparing to be fixed on the funnel neck do not allow it self clamped by permanent mode, and, having under the situation of strong movements, bar is usually from supporting landing.In addition, in practice, bar usually is not that the next door through above-mentioned groove is pressed in the filler neck, but inserts from the free end of funnel neck, and its result is that especially for the balloon made from paper tinsel, balloon neck can damage under many circumstances.

In addition, also know the device that a kind of the above-mentioned type is arranged, wherein, infundibulate plastics body and bar are with whole working of plastics manufacturing.Undeniable, this class device does not have the shortcoming of the fastener of two-piece type; But, owing in it is made, used complicated pouring-in molding process, therefore a kind of more expensive than preceding.The single-piece fastener of being familiar with also further need be used to store and pack the space of a large amount of parts; Because they can not be packed by best and compact mode, make that the packing of a lot of parts and transportation are more expensive.

As mentioned above, from the prior art situation, purpose of the present invention is fastening for setting up a single-piece balloon, the shortcoming that it does not have picture to mention previously.This device is safety by uncomplicated processing, balloon neck and airtight sealing and the storage demonstration it oneself of saving the space especially.

The present invention itself is implemented by the characteristic as defined in secondary claim.Other advantageous forms of the present invention draws from relevant claim.

The example of form of implementation of the present invention is described by accompanying drawing below.Be depicted as in the accompanying drawings:

Fig. 1 illustrates the front view of balloon fastener, and wherein, it comes out from injection molding machine, waits for and storing.

Fig. 2 illustrates the major part of the device that is in its use location, but, does not have balloon.

Fig. 3 to 5 illustrates three fastening different phases of balloon, one then one in order.

Fig. 6 illustrates the view that is fixed on the balloon neck on the device.And

Fig. 7 is illustrated in the situation of from the negative looking shown in Figure 6.

With the device shown in the front view one bar 1 is arranged in Fig. 1, it carries a head member 2 at the one end, and the latter is used for the airtight fastening of balloon.Bar 1 and head member 2 are made as one whole by plastics, preferably make by injection-molded.

Head member 2 comprises the fork 4 of a semicircle, so fixes a ring 5 in the end of fork, so that ring can be swung.Ring is fixed on the fork 4 with flexible plastic tape 4a/4b, produces an axis of oscillation A-A thus.

With fork 4 places that link to each other, ring 5 can have two across is done in their cross section to overhanging segment 3a/3b, with the restriction angle of oscillation, and they are directly directly crossed in being with 4a/4b.Because this cross shape in cross section, under the excessive situation of ring 5 pendulum, in the time may crossing fork 4 from the side for one in the spider, the angle of oscillation of ring 5 is restricted to about 90 degree.

One rigidity tongue 6 stretches out in the inside of ring along the rod axis that extends, and it is also crossed in the center that always arrives ring, and with one flexible be with 7 with encircle 5 and be connected, the effect of this band is as a hinge, so that tongue 6 can allow himself to show from encircle 5 plane where necessary.

In the both sides of bar, transitting on fork that section of 4 of bar, forms two noses (projection) 9a/9b, two side arms down of nose sometimes may be together with fork 4, or sometimes together with four groove E of bar 1 formation.The arm of the nose 9a/9b on the border of formation groove E is made fillet in the inlet region of groove, and groove is originally in its end E widens slightly separately.The width of groove E will so be selected, so that resilient balloon neck can insert with slight pressure, and can be anchored at the groove end of widening.

In another embodiment, groove E makes them alternatively and can for example directly be included in the bar 1.

The length of tongue 6 is can be for example bigger by about 1 to 2mm with the distance of pitching between 4 the bottom 10 than the axis of oscillation A-A of ring 5.Can guarantee that thus after ring 5 rotated about 90 degree, the free end of tongue 6 can lean against the outside (Fig. 7) of fork 4, thereby anti-stop ring 5 transfers back to its origin-location.

As above-mentioned,, can realize the airtight fastening of balloon easily in the following manner by this device:

After balloon is blown, come out in order to prevent gas, balloon neck H is pressed between the thumb and forefinger of the same hand M2, this hand is also held device of the present invention.This is shown in Figure 3.Now a little balloon is drawn back with an other hand M1, thus, balloon neck supports length slightly, so that it can easily be inserted in the ring 5 through opening 8.As shown in Figure 4, because its elasticity, balloon neck H can at first be inserted among among the groove E below two one now.As shown in Figure 5, then put it into successively above two with fork 4 adjacent groove E in, as shown in Figure 6, indicate that fastening process finishes.In the case, just can guarantee absolute air-tightness.

When inserting balloon neck H (Fig. 1) through opening 8, guarantee really that balloon neck can not rebound owing to its elasticity tension passes through opening, and two edges of opening 8 all are equipped with the projection 11 of making fillet separately, the latter stretches out in the space of ring.

The tangible advantage of described device is, when balloon neck H inserts (Fig. 3 and 4), to have shown at ring 5 after about 90 degree in plane of fork 4, neck can not spring back to its initial position (Fig. 1) once more, this is because it is stoped by the tongue that is in line facing to fork 4 does like this.When ring 5 overturn by himself, tongue 6 was taked its locked position; But, in some cases, may need to make tongue 6 cross the bottom 10 of fork 4 with the light pressure of finger.

Before ring 5 had swung in the use location as shown in Figure 2, it taked position shown in Figure 1, and wherein, it is positioned at same plane together with fork 4.So, for according to device of the present invention, importantly, a flat injection moldings being arranged, it is without any any extra thickness outstanding from its plane, and therefore, it can easily be stored and pack.

Claims (7)

1. the airtight sealing and the fastening device of dismoutability that are used for balloon, it is made of plastics, it has a head member (2) and a bar (1), the latter is connected and is used to carry balloon with head member (2), it is characterized by, the head member (2) that is placed on the end of bar has two arms that are used to form a fork (4), this arm is by at least the spitting image of the mode bending of a semicircle, and, on an end of arm, mode by swing is so fixed a ring (5) that an opening (8) is arranged, so that it can be shown around an axis of oscillation A-A from its initial position in the plane of fork, this axis is pressed two ends of straight line yoke, axis with bar roughly forms a right angle then, and a rigidity tongue (6) is fixed on the inboard of ring (5) by the swing mode, the length of tongue is wanted so, so that the use location of installing, it is positioned at a side opposite with balloon neck (H) of fork (4), thereby anti-stop ring (5) is stopped direction toward resilience along it, in addition, make nose (9a/9b) on the section adjacent with fork (4) of bar, above-mentioned nose forms groove with bar (1), or has had the groove (E) that is used to clamp balloon neck (H).

2. device as claimed in claim 1 is characterized by, and tongue (6) all is positioned on the axis of bar with the opening (8) of ring (5).

3. as the device of claim 1 or 2, it is characterized by, tongue (6) from the ring (5) the inboard stretch out, until the ring the center and cross it.

4. device as claimed in claim 3 is characterized by, the length of tongue (6) preferably what than the axis of oscillation (A-A) of ring (5) and pitch distance (a) big 1 between the bottom (10) of (4) to 2mm.

5. device as claimed in claim 1 is characterized by, and ring (5) has two projections (11) on its opening (8), and they stretch out in the inboard, space of ring.

6. as each device of claim 1 to 5, it is characterized by, the cross section of bar (1) is a H shape.

7. as each device of claim 1 to 6, it is characterized by, it only comprises an injection molded part.