CN2692899Y

CN2692899Y - Improvement of supporting core band structure for cooling shrink pipe

Info

Publication number: CN2692899Y
Application number: CN 200420001479
Authority: CN
Inventors: 梁从勉
Original assignee: TAIWAN XIANGDENG CO Ltd
Current assignee: TAIWAN XIANGDENG CO Ltd
Priority date: 2004-02-26
Filing date: 2004-02-26
Publication date: 2005-04-13
Anticipated expiration: 2014-02-26

Abstract

The utility model discloses a supporting core body band structure improvement on cooling shrink pipe. A core body band is formed by continuous band bars by means of spiral wrapping, and a lateral margin on one side of the band bar can be mutually fused, connected and buckled with the lateral margin of the adjacent band bar, wherein at least one face of the band bar axially integrally forms a cutting groove, which makes the thickness of the lowest point of the cutting groove is farther smaller than the thickness of the band bar. The junction force of cutting grooves is farther smaller than the binding force among the lateral margins of the band bars in order that when the band bars are pulled and guided by an external force, the band bar can be torn at the cutting groove and peeled off. The utility model has the efficiencies that the core body is easily removed and good supporting strength is kept.

Description

The support heart body band structure improvement of cold shrink tube

Technical field

The utility model is relevant with cold shrink tube, is meant a kind of support heart body band of cold shrink tube especially.

Technical background

Cold shrink tube be different from because of heating can shrinkable polymerization body; it is mainly used in the formed protection sleeve in junction of electric wire or cable; equally also can be applicable to manage the formed protection sleeve of pad anti-corrosion; as shown in Figure 1; general cold shrink tube is to include an elastic tube 1 and a tubular heart body 2; this tubular heart body 2 places in the elastic tube 1; be subjected to elastic tube 1 under the swelling state in order to support; wherein; delineation has successional spiral grooves 3 on this tubular heart body 2; can make tubular heart body 2 be drawn as continuous lines by this; so when cold shrink tube is applied to the junction of two twisted wire conductors 4; elastic tube 1 one ends can be placed on earlier on a twisted wire conductor 4 line ends wherein; elastic tube 1 other end then is positioned on another twisted wire conductor 4 line ends and managed centre of form body 2 supports; when drawing gradually when moving tubular heart body 2 formed lines; this elastic tube 1 also shrinks thereupon gradually replys; and elastic tube 1 is tightly restrainted in the junction of twisted wire conductor 4; but because this tubular heart body 2 need be delineated spiral grooves 3 in advance; event is processing time consuming not only; cost is high and weaken its support strength; for improving above-mentioned shortcoming; as Fig. 2; shown in 3; it is No. the 264582nd, patent announcement " the support heart body band of cold shrink tube " patent of invention case; be to make tubular heart body with a continuous tape 10; the lateral margin 11 of these tape 10 1 sides can fasten mutually with the lateral margin 12 of tape 10 opposite sides; by this; when making tape 10 be wound in cylindrical tube with helical form; its corresponding lateral margin 11; 12 can the ultrasonic fusing mode be engaged fixing; make this cylindrical tube that the heart body that supports usefulness as elastic tube can be provided; when desiring to tear off tape 10; equally again by lateral margin 11; 12 places separate; above-mentioned patent case can be improved the shortcoming that the tubular heart body of commonly using cold shrink tube is produced really; but; the lateral margin 11 of these tapes 10; no matter 12 shapes why; behind ultrasonic fusing; all be difficult to reach the accuracy of expection in fact; reason is that hyperacoustic heat seal strength is wayward; therefore often having excessive the causing of the heat seal strength of a certain section of tape is difficult for tearing off or heat seal strength causes bad phenomenon such as support strength deficiency to take place inadequately; even the improvement characteristics as this case are partly to connect to have between face in adjacent side lip to reserve suitable space, also can't improve above-mentioned shortcoming fully.

Summary of the invention

Main purpose of the present utility model is to provide a kind of support heart body band structure improvement of cold shrink tube, is by being formed with a grooving on the tape, making it have the effect that is easy to tear off and possess splendid support strength.

The purpose of this utility model is achieved in that

A kind of support heart body band structure improvement of cold shrink tube is provided, this cold shrink tube includes an elastic tube and a tubular heart body, this tubular heart body places in this elastic tube, in order to support this elastic tube, wherein, this tubular heart body is formed with the spiral canoe by continuous tape, the lateral margin that the lateral margin of this tape one side is adjacent tape welding mutually fastens, it is characterized in that: at least one plane of this tape is formed with a grooving vertically, the thickness of this grooving minimum point is much smaller than the thickness of tape, make binding strength that tape is positioned at grooving much smaller than the adhesion between the tape lateral margin, so that tape is when being subjected to the external force drawing, tape will be torn and separated by the grooving place.And

This grooving is interval with several perforates vertically.

This grooving is to form a V-shape.

A this tape wherein lateral margin is upwards to form one first raised section again after one first flat segments is extended on the plane of tape bottom, and the lateral margin of this tape opposition side then forms one second raised section relatively downwards after one second flat segments is extended on the plane at tape top.

The lateral margin of this tape one side and the lateral margin of corresponding tape can close admittedly by ultrasonic fusing.

Good effect of the present utility model is:

Because tape of the present utility model tear place is at the grooving of itself and the lateral margin junction between non-adjacent two tapes, therefore, the utility model only need be controlled the thickness of grooving well, the highest support strength in the time of can maintaining tape formation heart body forever and the balance point of the minimum tensile strength of grooving thereof, reach the two-fold advantage that is easy to tear off but still possesses splendid support strength, so can improve the tear place of commonly using tape when being positioned at the lateral margin junction, because of expecting lateral margin welding degree, can produce and be difficult for tearing off or shortcoming such as support strength deficiency.

Description of drawings

Fig. 1 commonly uses cold shrink tube and is used in schematic diagram on the cable;

Another commonly uses the tape cutaway view that cold shrink tube forms the tubular heart body Fig. 2;

The cutaway view that Fig. 3 is above-mentioned when commonly using tape lateral margin that cold shrink tube forms tubular heart body and fastening;

The vertical view of Fig. 4 the utility model one preferred embodiment;

The cutaway view of the above-mentioned preferred embodiment of Fig. 5 the utility model;

Cutaway view when the tape of the above-mentioned preferred embodiment of Fig. 6 the utility model fastens mutually;

The cutaway view of another preferred embodiment of Fig. 7 the utility model.

The piece number contrast:

20 tapes

21 lateral margins

211 first flat segments, 212 first raised sections

22 lateral margins

221 second flat segments, 222 second raised sections

21 groovings

24 perforates

25 groovings

Embodiment

By the technological means of further understanding structure of the present utility model, utilization and the effect reached of expection, now lifting a preferred embodiment and conjunction with figs. is described in detail as follows, creation purpose of the present utility model, feature and other characteristics are when can going deep into therefrom and concrete understanding.

Cooperate and consult shown in Fig. 4,5, the support heart body band structure improvement of a kind of cold shrink tube of the utility model, its heart body that supports usefulness is formed with the spiral canoe by continuous tape 20, wherein:

This tape 20 is flat strips bodies, its both sides form a lateral margin 21 respectively, 22, wherein a lateral margin 21 is upwards to form one first raised section 212 after one first flat segments 211 is extended on the plane of tape 20 bottoms again, the lateral margin 22 of these tape 20 opposition sides then forms one second raised section 222 relatively downwards after one second flat segments 221 is extended on the plane at tape 20 tops, with oppositely to should first flat segments 211 and first raised section 212, by this, make the lateral margin 21 of these tape 20 1 sides and the lateral margin 22 of corresponding tape 20 can form male and female snapping and fixed mutually by the ultrasonic fusing mode, these tape 20 end faces are formed with a grooving 23 vertically in addition, this grooving 23 is generally to be a V-shape by tape 20 thickness of two sides convergents, make the thickness of the thickness of these grooving 23 center lowest parts much smaller than tape 20, this tape 20 is interval with several perforates 24 on grooving 23 in addition.

It more than is the general introduction of structure, position and the interconnected relationship of each element of the utility model; Continue occupation mode of the present utility model and the principle used be presented below:

As shown in Figure 6, because when this continuous tape 20 forms the support heart body of cold shrink tube with the spiral canoe, the lateral margin 21 that adjacent strip is 20,22 can fasten and fix by ultrasonic fusing mutually, so can form a tubular heart body, and when desiring to tear off tape 20, because these grooving 23 minimum points are tape 20 thickness minimum part, make the binding strength at grooving 23 places the most weak and much smaller than the adhesion between tape 20 lateral margins, with when tape 20 is subjected to the external force drawing, its stress will concentrate on the grooving 23, tape 20 can be torn by grooving 23 places, and spiral helicine tape 20 is stripped from heart body in the from coil to coil mode.

Consulting shown in Figure 7ly again, is another preferred embodiment of the utility model, and wherein, these tape 20 bottom surfaces are the also corresponding reverse grooving 25 that is provided with in grooving 25 places, makes tape 20 have minimum thickness in these grooving 23,25 places.

The effect that the utility model expection reaches is as follows:

Because tape of the present utility model 20 tear places are at the grooving 23 of itself and

lateral margin

21,22 junctions of 20 of non-adjacent two tapes, therefore, the utility model only need be controlled the thickness of grooving 23 well, the highest support strength in the time of can maintaining tape 20 formation heart bodies forever and the balance point of grooving 23 minimum tensile strengths thereof, reach the two-fold advantage that is easy to tear off but still possesses splendid support strength, so can improve the tear place of commonly using tape when being positioned at the lateral margin junction, because of can't expecting lateral margin welding degree, be difficult for tearing off or shortcoming such as support strength deficiency so can produce; So the utility model not only can produce the heart body with high support strength, and when removing heart body, also can under the strength of labour-saving, carry out, have splendid progressive and practicality in fact.

Only the above only is the preferable possible embodiments of the utility model, is familiar with this skill personage such as, and it all ought to be included in this case claim according to modification or change that the utility model spirit category is done.

Claims

1. the support heart body band structure of cold shrink tube improvement, this cold shrink tube includes an elastic tube and a tubular heart body, this tubular heart body places in this elastic tube, in order to support this elastic tube, wherein, this tubular heart body is formed with the spiral canoe by continuous tape, and the lateral margin that the lateral margin of this tape one side is adjacent tape is the welding fastening mutually, it is characterized in that:

At least one plane of this tape is formed with a grooving vertically, the thickness of this grooving minimum point is much smaller than the thickness of this tape, make this tape be positioned at the binding strength of this grooving much smaller than the adhesion between this tape lateral margin, so that this tape is when being subjected to the external force drawing, this tape will be torn and separated by this grooving place.

2. according to the support heart body band structure improvement of the described cold shrink tube of claim 1, it is characterized in that: this grooving is interval with several perforates vertically.

3. according to the support heart body band structure improvement of the described cold shrink tube of claim 1, it is characterized in that: this grooving is to form a V-shape.

4. improve according to the support heart body band structure of the described cold shrink tube of claim 1, it is characterized in that: a lateral margin of this tape is upwards to form one first raised section again after one first flat segments is extended on the plane of tape bottom, and the lateral margin of this tape opposition side then forms one second raised section relatively downwards after one second flat segments is extended on the plane at this tape top.

5. according to the support heart body band structure improvement of the described cold shrink tube of claim 1, it is characterized in that: and the lateral margin of the lateral margin of this tape one side and corresponding tape can close admittedly by ultrasonic fusing.