CN203397000U - A carbon-fiber-core fiber wire junction tool - Google Patents

Abstract

The utility model discloses a carbon fiber core optical fiber wire connection fitting, which comprises a combined sleeve and a clamping piece connected to the combined sleeve, and a double-headed connection with a clamping surface on the outside of the middle section is arranged at the midpoint of the inner radial direction of the combined sleeve. Bolts, both sides of the double-ended connecting bolts are respectively threaded with the outer taper sleeve, the outer taper sleeve is a cylindrical structure with a tapered cavity inside, and the outer taper sleeve is equipped with an inner taper sleeve with several axial opening grooves on the peripheral side, combined The two ends of the sleeve are provided with cable sleeves partially protruding from the combined sleeve, grooves are provided inside the double-head connecting bolts, and sealing rings are provided at the ends of the cable sleeves. The utility model utilizes the clamping piece to fix the internal double-headed connecting bolts very well. The cable passes through the inner cone sleeve and rotates the outer cone sleeve by pressing, forcing the gap between the two axial opening grooves to deform, and the inner cone sleeve is folded. Thereby, the conductor core is clamped, so as to realize the connection of two sections of conductors. The utility model has ingenious structural design, no damage to the composite core, simple operation and reliable connection.

Description

A carbon fiber core optical fiber wire connection fitting

technical field

The utility model belongs to the technical field of design of overhead power transmission lines in electric power systems, and in particular relates to a carbon fiber core optical fiber conductor connecting fitting.

Background technique

In the overhead cable transmission line system, to connect two sections of cables, wires must be used to connect fittings, and the connection must meet the requirements of electrical conductivity, that is, to meet the requirements that the resistance of the connection fittings should not be greater than the resistance between wires of equal length, and to meet the requirements of wire connection strength. . Conventional splicing fittings are mainly used for the connection of steel-cored aluminum stranded wires. With the upgrading of power system technology, carbon fiber wires are gradually occupying the position of transmission cables due to their low sag, light weight, low transmission loss, and good corrosion resistance. However, the composite core of carbon fiber core optical fiber is a brittle material, and its bending strength, tensile strength, and extrusion resistance are small. Therefore, conventional splicing fittings cannot be used for the connection of carbon fiber core optical fiber composite aerial conductors. Therefore, it is urgent to design a new type of connecting fitting to solve the above technical problems, improve construction efficiency, reduce construction cost and wire loss. The Chinese patent application number: 201220181173.4 discloses a carbon fiber photoelectric composite wire connecting fitting. The inside of the carbon fiber photoelectric composite wire is a carbon fiber composite core, and the outside is an aluminum wire. The fitting includes a conductive tube main body, and the diameter inside the tube is A double-ended connecting bolt is provided at the midpoint, and the double-ended connecting bolt is respectively connected with the carbon fiber composite core clamping device arranged symmetrically on both sides. The front end of the clamping device is provided with a filling liner, and the head of the filling liner extends Out of the main body of the conductive tube; a hollow hole is set on the main body of the conductive tube; spiral surrounding stripes are set outside the main body of the conductive tube. The utility model is used to connect the inner layer tension structure combination of the carbon fiber composite core. During installation, the carbon fiber composite core does not need to be crimped, the carbon fiber composite core is not damaged, and the optical fiber in the composite wire can be drawn out to realize the separation of the optical fiber and the power transmission wire. . However, the double-ended connecting bolts are not easy to locate and control during installation and use, and once rotated, effective clamping operations cannot be performed.

Utility model content

The utility model aims to solve the above-mentioned technical problems, and provides a carbon fiber core optical fiber wire connecting fitting with simple structure, convenient use and reliable performance.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a carbon fiber core optical fiber wire connection fitting, including a combined sleeve and a clamping piece connected to the combined sleeve, the radial midpoint of the combined sleeve A double-headed connecting bolt with a clamping surface is provided on the outside of the middle section. The two sides of the double-ended connecting bolt are respectively threaded with the outer tapered sleeve. The outer tapered sleeve is a cylindrical structure with a tapered cavity inside. The outer tapered sleeve An inner taper sleeve with several axial opening grooves on the peripheral side is arranged inside, and cable sleeves partially protruding from the combined sleeve are provided at both ends of the combined sleeve.

Grooves are arranged inside the double-ended connecting bolts.

A sealing ring is provided at the end of the cable sleeve.

The utility model improves the prior art, and the internal double-head connecting bolts can be well fixed by using the clamping parts. The combined casing is adopted, which is convenient for disassembly and assembly, and is convenient for interchangeable replacement and maintenance. During use, the wires are separated from the The cable sleeve is inserted through the inner taper sleeve into the groove, and the outer taper sleeve is pressed and rotated to force the gap between the two axial opening grooves to deform, and the inner taper sleeve is gathered, Thereby, the wire core is clamped, and the ends of the wire core are respectively tightly connected with the double-headed connecting bolts, so as to realize the connection of two sections of wires. , to prevent internal moisture from affecting the service life. The utility model has an ingenious structural design, no need to crimp the composite core of the conductor when connecting two sections of conductors, and does not damage the composite core of the carbon fiber core optical fiber composite overhead conductor, simple operation, strong grip, reliable connection, good use effect, and has the value of popularization .

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is a kind of structural representation of the utility model.

Detailed ways

As shown in Figure 1, a carbon fiber core optical fiber conductor fittings, including a combined sleeve 1 and a clamping piece 2 connected to the combined sleeve 1, the combined sleeve 1 is provided at the midpoint of the inner diameter of the middle section with a The double-ended connecting bolt 4 of the clamping surface 3, the two sides of the double-ended connecting bolt 4 are respectively threaded with the outer tapered sleeve 5, and the outer tapered sleeve 5 is a cylindrical structure with a tapered cavity inside. The sleeve 5 is provided with an inner tapered sleeve 6 with several axial opening grooves on the peripheral side, and the two ends of the combined sleeve 1 are provided with cable sleeves 7 partially protruding from the combined sleeve 1 .

A groove 8 is arranged inside the double-ended connecting bolt 4 .

A sealing ring 9 is provided at the end of the cable sleeve 7 .

The utility model improves the prior art, and the internal double-head connecting bolts can be well fixed by using the clamping parts. The combined casing is adopted, which is convenient for disassembly and assembly, and is convenient for interchangeable replacement and maintenance. During use, the wires are separated from the The cable sleeve is inserted through the inner taper sleeve into the groove, and the outer taper sleeve is pressed and rotated to force the gap between the two axial opening grooves to deform, and the inner taper sleeve is gathered, Thereby, the wire core is clamped, and the ends of the wire core are respectively tightly connected with the double-headed connecting bolts, so as to realize the connection of two sections of wires. , to prevent internal moisture from affecting the service life. The utility model has an ingenious structural design, no need to crimp the composite core of the conductor when connecting two sections of conductors, and does not damage the composite core of the carbon fiber core optical fiber composite overhead conductor, simple operation, strong grip, reliable connection, good use effect, and has the value of popularization .

Claims (3)

1. A carbon fiber core optical fiber lead connecting fitting, characterized in that: it comprises a combined sleeve and a clamping piece connecting the combined sleeve, and the radial midpoint of the combined sleeve is provided with a clamping surface on the outside of the middle section. Double-headed connecting bolts, the two sides of the double-ended connecting bolts are respectively threaded with the outer tapered sleeve, the outer tapered sleeve is a cylindrical structure with a tapered cavity inside, and the inner peripheral side of the outer tapered sleeve has a number of axial The inner tapered sleeve of the open groove, and the cable sleeves partially protruding from the combined sleeve are provided at both ends of the combined sleeve. 2 . The carbon fiber core optical fiber lead splicing fitting according to claim 1 , wherein a groove is arranged inside the double-ended connecting bolt. 3 . 3. The carbon fiber core optical fiber conductor fitting according to claim 1, wherein a sealing ring is provided at the end of the cable sleeve.

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