CN214754189U

CN214754189U - Reinforcement T type strip that continues

Info

Publication number: CN214754189U
Application number: CN202121556604.6U
Authority: CN
Inventors: 陶友林; 杨勇峰
Original assignee: Shanghai Shenyong Mechanical Technology Co ltd
Current assignee: Shanghai Shenyong Mechanical Technology Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-11-16
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses a reinforcement T type strip that continues, skein in skein, packing and T type outside the T type, the skein outside the T type the packing and the skein is helical structure in the T type, the skein includes skein silk bundle in two L types, two in the T type one section symmetry of skein silk bundle is around locating on the main lead, two in the L type another section of skein silk bundle all around locating on the branch lead, in the L type skein silk bundle with the packing is around locating in turn on the main lead, the skein silk includes two L types outside the skein silk bundle outside the T type, two one section symmetry of skein silk bundle is around locating in the L type with the outside of packing, two in the L type another section of silk bundle is around locating the outside of skein silk bundle in on the branch lead. Adopt a reinforcement T type of above-mentioned structure to continue the strip, simple structure, stress distribution is even, and joint strength is big, simple to operate.

Description

Reinforcement T type strip that continues

Technical Field

The utility model belongs to the technical field of the electrical accessories technique and specifically relates to a reinforcement T type strip that continues.

Background

The high-voltage transmission line is a channel for connecting a transformer substation and transmitting electric power and is an important component of a power grid. In the design of the power transmission line, a connection mode of connecting a line T is seen, wherein the T connection line is formed by connecting lines of different spatial levels at the intersection of two same voltage levels by using a short-circuit line, and a first transformer substation supplies power to a second transformer substation and a third transformer substation simultaneously. This manner of tapping another line from the main line is visually referred to as "T" tapping, and this tapping point is referred to as "T-junction". In the prior art, T-shaped wire clamps are used for connection, but the T-shaped wire clamps are heavy and complex in structure and need special tools for installation. And a plurality of positions are provided with bolts which are protruded, so that the parameter discharge phenomenon is easy to occur in use. The wire clamping groove for clamping the wire is in point or line contact with the wire, the contact between the product and the wire is insufficient, the flow guide of the product is insufficient, the resistance of the product is increased, and the overheating phenomenon occurs at the joint. Meanwhile, the existing splicing strips are low in strength and easily bring potential safety hazards.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reinforcement T type strip that continues, simple structure, stress distribution is even, and joint strength is big, simple to operate.

In order to realize the above-mentioned purpose, the utility model provides a reinforcement T type strip that continues, skein in T type, packing and T type, the skein outside the T type the packing and the skein is helical structure in the T type, the skein includes skein group in two L types, two one section symmetry of skein group in the L type is around locating on the main lead, two another section of skein group in the L type is all around locating on the branch lead, skein group in the L type with the packing is around locating in turn on the main lead, the skein group of the T type includes two L type skein groups, two one section symmetry of L type skein group is around locating strand group in the L type with the outside of packing, two another section of L type skein group is around locating in group in the L type outside on the branch lead.

Preferably, the inner walls of the T-shaped outer stranded wires and the T-shaped inner stranded wires are bonded with the conductive particle layer.

Preferably, the T-shaped outer twisted wire, the filling strip and the T-shaped inner twisted wire are all composed of aluminum alloy wires, and the tail ends of the aluminum alloy wires are provided with spherical chamfers.

Therefore, the utility model adopts the above structure a reinforcement T type strip that continues has following beneficial effect:

1) and a double-layer twisted wire structure is adopted, so that the phenomenon of overheating at the joint is avoided.

2) The T type outer twisted wire the packing strip and the twisted wire is helical structure in the T type, bare-handed installation, simple to operate, the T type outer twisted wire with twisted wire both legs form than the little tubular structure of wire diameter twines naturally on the branch wire in the T type, can produce extremely strong grip, can reach 40% of the nominal breaking force of wire to the grip of the wire that is continuing, is higher than the 25% nominal breaking force of wire that the trade required.

3) The stress distribution is even, the aluminum alloy wire is light in weight and rich in elasticity, and the tail end of the stranded wire is provided with the spherical chamfer, so that the wire is ensured not to be abraded, and the original mechanical property and the electrical property of the wire are not influenced.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural view of a reinforced T-shaped connection strip of the present invention;

FIG. 2 is a layout view of the T-shaped internal twisted wire of the present invention;

FIG. 3 is a layout diagram of the packing strips of the present invention;

FIG. 4 is a cross-sectional view of the main conductor of the present invention;

fig. 5 is a cross-sectional view of the branch lead of the present invention.

Reference numerals

1. A main conductor; 2. t-shaped internal twisted wire; 3. filling the strip; 4. t-shaped external twisted wire; 5. and (4) branching the conducting wire.

Detailed Description

Examples

Fig. 1 is the utility model relates to a reinforcement T type strip structure schematic diagram that continues, fig. 2 is the utility model discloses twisted wire arrangement diagram in the T type, fig. 3 is the utility model discloses pack the strip arrangement diagram, fig. 4 is the utility model discloses leading wire cross-sectional diagram, fig. 5 is the utility model discloses branch's wire cross-sectional diagram, as shown in the figure, a reinforcement T type strip that continues, including the outer twisted wire 4 of T type, pack the strip 3 and the interior twisted wire 2 of T type, the outer twisted wire 4 of T type, pack the strip 3 and the interior twisted wire 2 of T type are helical structure, bare-handed installation, simple to operate. The T-shaped outer twisted wire 4, the filling strips 3 and the T-shaped inner twisted wire 2 are all made of aluminum alloy wires, and the tail ends of the aluminum alloy wires are provided with spherical chamfers. The aluminum alloy wire is light in weight and high in elasticity, and the tail end of the stranded wire is provided with the spherical chamfer, so that the lead is ensured not to be abraded, and the original mechanical property and electrical property of the lead are not influenced. The internal twisted wire 2 of T type includes twisted wire bundle in two L types, one section symmetry of twisted wire bundle is around locating leading wire 1 in two L types, another section of twisted wire bundle is all around locating branch conductor 5 in two L types, twisted wire bundle and filler strip 3 are around locating leading wire 1 in turn in the L type, the external twisted wire 4 of T type includes two L types of external twisted wire bundles, make twisted wire bundle and filler strip 3 parcel leading wire 1 in the L type, one section symmetry of twisted wire bundle is around locating the outside of twisted wire bundle and filler strip 3 in the L type, another section of twisted wire bundle is around locating the outside of twisted wire bundle in the L type on branch conductor outside two L types of external twisted wire bundles. The T-shaped outer twisted wire and the T-shaped inner twisted wire form a tubular structure with the diameter smaller than that of the lead wire and are naturally wound on the branch lead wire, so that the strong holding power can be generated, the holding power of the connected lead wire can reach 40% of the nominal breaking force of the lead wire, and the nominal breaking force of the lead wire is higher than 25% of the nominal breaking force of the lead wire required by the industry. Compared with the T-shaped wire clamp in the prior art, the double-layer twisted wire structure is adopted, the conductive cross section of the reinforcing T-shaped connecting strip is 2 times that of the branch lead 5, the reinforcing T-shaped connecting strip can provide 150% of lead rate of a main lead, meanwhile, 70% of resistance is reduced, and the phenomenon that the connecting part is overheated is avoided. Meanwhile, the connection quality is good, and the stress distribution is uniform.

The inner walls of the T-shaped outer stranded wire and the T-shaped inner stranded wire are bonded with the conductive particle layer, so that the conductivity is improved. In the practical application process, the materials used for reinforcing the T-shaped connecting strip are the same as the wires, so that the electrochemical corrosion between the materials is avoided.

Therefore, the utility model adopts the above structure a reinforcement T type strip that continues, simple structure, stress distribution is even, and joint strength is big, simple to operate.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.

Claims

1. A reinforcing T type strip that continues which characterized in that: the T-shaped outer twisted wire, the filling strip and the T-shaped inner twisted wire are of a spiral structure, the T-shaped inner twisted wire comprises two L-shaped inner twisted wire bundles, one section of each L-shaped inner twisted wire bundle is symmetrically wound on the main lead, the other section of each L-shaped inner twisted wire bundle is wound on the branch lead, the L-shaped inner twisted wire bundles and the filling strip are alternately wound on the main lead, the T-shaped outer twisted wire comprises two L-shaped outer twisted wire bundles, one section of each L-shaped outer twisted wire bundle is symmetrically wound on the L-shaped inner twisted wire bundles and the outer side of the filling strip, and the other section of each L-shaped outer twisted wire bundle is wound on the outer side of each L-shaped inner twisted wire bundle on the branch lead.

2. A reinforced T-shaped splice bar as claimed in claim 1, wherein: and the inner walls of the T-shaped outer stranded wire and the T-shaped inner stranded wire are bonded with the conductive particle layer.

3. A reinforced T-shaped splice bar as claimed in claim 1, wherein: the T-shaped outer twisted wire, the filling strip and the T-shaped inner twisted wire are all composed of aluminum alloy wires, and the tail ends of the aluminum alloy wires are provided with spherical chamfers.