CN204516920U - Large wire diameter wire connection strip for strengthening connection tube - Google Patents
Large wire diameter wire connection strip for strengthening connection tube Download PDFInfo
- Publication number
- CN204516920U CN204516920U CN201520163695.5U CN201520163695U CN204516920U CN 204516920 U CN204516920 U CN 204516920U CN 201520163695 U CN201520163695 U CN 201520163695U CN 204516920 U CN204516920 U CN 204516920U
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- armor rods
- preformed armor
- splicing sleeve
- wire
- hank knotting
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Abstract
The utility model discloses a kind of large wire diameter wire connection strip for strengthening connection tube, comprise the preformed armor rods of at least two superimposed, described preformed armor rods is wrapped on the wire of splicing sleeve both sides along its length, is not wound around described splicing sleeve in the middle part of described preformed armor rods; Every layer of preformed armor rods comprises some groups of hank knotting bundles, is provided with conduction sand bonding in hank knotting bundle.The utility model can improve the fail safe of splicing sleeve further, while the convenient winding of conduction sand, can also ensure the energising performance of preformed armor rods.
Description
Technical field
The utility model relates to a kind of large wire diameter wire connection strip for strengthening connection tube, is specifically related to the sandwich construction of connecting strip.
Background technology
In UHV transmission project, the connection of broken lines of large wire diameter aluminum conductor uses lead splicing sleeve to crimp usually, and syndeton as shown in Figure 1.In practice of construction process, owing to there is multiple uncontrollable factor, during outer aluminum pipe crimping, if fail proper operation, there is certain energising and structural safety hidden danger.In addition, in actual motion, owing to there is long-term aeolian vibration, easily cause the fatigue of aluminium hydraulic pressed connecting pipe exit aluminum steel to break stock, cause the water conservancy diversion area at splicing sleeve place to reduce, local temperature raises, if processed not in time, the further reduction of splicing sleeve flow conductivity can be caused, form vicious circle, finally cause splicing sleeve to blow.
In order to solve the problem, in prior art, usually finishing strips is adopted to strengthen connecting for lead splicing sleeve, as the Chinese utility model patent (patent No.: disclose one " wire-connection finishing strips " 201120423772.8), this finishing strips adopts preformed armor rods to be wrapped on the wire of splicing sleeve both sides, can play the effect strengthening splicing sleeve safety.But only arrange individual layer preformed armor rods in this patent, fail safe is high not enough, because UHV transmission project conductor cross-section is very large, be mostly just difficult to ensure the flow conductivity continued that breaks by one deck preformed armor rods.
In order to ensure grip and convenient winding, this patent is also provided with diamond dust in hank knotting bundle, can improve the frictional force on preformed armor rods surface, holds although convenient, easily causes harmful effect to preformed armor rods energising.
Utility model content
For problems of the prior art, the purpose of this utility model is to provide a kind of large wire diameter wire connection strip for strengthening connection tube, this connecting strip adopts at least two-layer preformed armor rods, further increase the fail safe of splicing sleeve, conduction sand is provided with in hank knotting bundle, while convenient winding, the energising performance of preformed armor rods can also be ensured.
For achieving the above object, the utility model is by the following technical solutions:
Large wire diameter wire connection strip for strengthening connection tube, comprises the preformed armor rods of at least two superimposed, and described preformed armor rods is wrapped on the wire of splicing sleeve both sides along its length, is not wound around described splicing sleeve in the middle part of described preformed armor rods; Every layer of preformed armor rods comprises some groups of hank knotting bundles, is provided with conduction sand bonding in hank knotting bundle.
Further, not etc., upper strata length is not less than lower floor for the described preformed armor rods length of different layers.
Further, the described preformed armor rods winding direction of different layers is identical.
Further, described hank knotting bundle comprises twisting part and wound portion, and wound portion is positioned at twisting part both sides, the preformed formation of twisting part " fried dough twist " shape; Described wound portion is wrapped on the wire of splicing sleeve both sides, and described twisting part is not wound around described splicing sleeve and directly rides over outside described splicing sleeve.
Further, described preformed armor rods adopts aluminum-alloy wire.
The large wire diameter wire connection strip for strengthening connection tube adopting said structure to arrange, has the following advantages:
Reinforcement connecting strip of the present utility model is divided into inside and outside two-layer, two-layer preformed armor rods itself has good conductive capability, two-layer preformed armor rods is wound around outside the wire that splicing sleeve continues, the effect of scattered current can well be played, make to be reduced by the magnitude of current of splicing sleeve, avoid the rising of splicing sleeve portion temperature, and the stress of splicing sleeve exit aluminum steel can be alleviated, avoid the disconnected stock occurring aluminum steel.So just greatly strengthen the security of operation of UHV transmission line, eliminate uncontrollable hidden danger in various construction.
Reinforcement connecting strip of the present utility model uses import high-strength aluminum alloy silk, and intensity meets or exceeds the requirement of DL/T 763-2001 standard.Inner surface adopts conduction sand material bonding, effectively ensures grip, electric conductivity.
The utility model is installed to tighten and improve at lead splicing sleeve place and is continued, and in the scope of installing reinforcement connecting strip, electric conductivity can improve, and is better than repaired steel reinforced aluminium conductor.
Accompanying drawing explanation
Fig. 1 is the front view of large wire diameter wire;
Fig. 2 is inside and outside layer connecting strip comparison diagram of the present utility model;
Fig. 3 is the winding process figure of the utility model and large wire diameter wire;
Fig. 4 is the winding state diagram of the utility model and large wire diameter wire.
In figure: 1. wire; 2. splicing sleeve; 3. internal layer preformed armor rods; 3-1. wound portion; 3-2. twisting part; 4. outer preformed armor rods; 4-1. wound portion; 4-2. twisting part.
Embodiment
For further setting forth the utility model for the technological means that reaches predetermined technique object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, structure of the present utility model, feature and effect are described in detail as follows.
Large wire diameter wire connection strip for strengthening connection tube described in the present embodiment, structure as shown in Figure 2, Figure 3, Figure 4, specifically comprise the preformed armor rods of two superimposed, internal layer preformed armor rods 3 as shown in Figure 4 and outer preformed armor rods 4, preformed armor rods is wrapped on the wire 1 of splicing sleeve 2 both sides along its length, is not wound around splicing sleeve 2 in the middle part of preformed armor rods; Every layer of preformed armor rods comprises some groups of hank knotting bundles, is provided with conduction sand bonding in hank knotting bundle.
According to actual needs, the preformed armor rods of two-layer above superposition can also be set, bonding strength can be improved further like this.Conduction sand contains graininess aluminium-silicon alloys gravel, can fill up the space between hank knotting bundle, make hank knotting bundle electric conductivity more stable, and preformed armor rods skin-friction coefficient increases, larger to the grip of wire.
Not etc., upper strata length is not less than lower floor for the preformed armor rods length of different layers.As shown in Figure 2, Figure 4 shows, internal layer preformed armor rods 3 is positioned at bottom, and its length is greater than outer preformed armor rods 4, is conducive to like this being wound around and later maintenance.
The preformed armor rods winding direction of different layers is identical, and such design is also to improve degree of tension, makes the preformed armor rods of different layers be combined into one as far as possible.
Particularly, hank knotting bundle comprises twisting part 3-2,4-2 and wound portion 3-1,4-1, and wound portion is positioned at twisting part both sides, the preformed formation of twisting part " fried dough twist " shape; Wound portion is wrapped on the wire 1 of splicing sleeve 2 both sides, and twisting part is not wound around splicing sleeve 2 and directly rides over outside splicing sleeve 2, and under the stressed state for continuing change of wire, twisting part is more conducive to the burden weakening splicing sleeve 2.
The preformed armor rods of the present embodiment uses import high-strength aluminum alloy silk, and intensity meets or exceeds the requirement of DL/T 763-2001 standard.
Described just in order to the utility model is described above, be construed as the utility model and be not limited to above embodiment, meet the various variants of the utility model thought all within protection range of the present utility model.
Claims (5)
1. large wire diameter wire connection strip for strengthening connection tube, it is characterized in that, comprise the preformed armor rods of at least two superimposed, described preformed armor rods is wrapped on the wire of splicing sleeve both sides along its length, is not wound around described splicing sleeve in the middle part of described preformed armor rods; Every layer of preformed armor rods comprises some groups of hank knotting bundles, is provided with conduction sand bonding in hank knotting bundle.
2. connecting strip as claimed in claim 1, is characterized in that, not etc., upper strata length is not less than lower floor for the described preformed armor rods length of different layers.
3. connecting strip as claimed in claim 1, it is characterized in that, the described preformed armor rods winding direction of different layers is identical.
4. connecting strip as claimed in claim 1, it is characterized in that, described hank knotting bundle comprises twisting part and wound portion, and wound portion is positioned at twisting part both sides, the preformed formation of twisting part " fried dough twist " shape; Described wound portion is wrapped on the wire of splicing sleeve both sides, and described twisting part is not wound around described splicing sleeve and directly rides over outside described splicing sleeve.
5. connecting strip as claimed in claim 1, is characterized in that, described preformed armor rods adopts aluminum-alloy wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520163695.5U CN204516920U (en) | 2015-03-23 | 2015-03-23 | Large wire diameter wire connection strip for strengthening connection tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520163695.5U CN204516920U (en) | 2015-03-23 | 2015-03-23 | Large wire diameter wire connection strip for strengthening connection tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204516920U true CN204516920U (en) | 2015-07-29 |
Family
ID=53714860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520163695.5U Active CN204516920U (en) | 2015-03-23 | 2015-03-23 | Large wire diameter wire connection strip for strengthening connection tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204516920U (en) |
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2015
- 2015-03-23 CN CN201520163695.5U patent/CN204516920U/en active Active
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