A fixing hardware for OPGW optical cable steel tape splice closure

Abstract

This utility model discloses a fixing hardware for OPGW optical cable steel tape splice closures, comprising two stainless steel rings, an upper ring and a lower ring. The upper ring is fitted onto the outside of the splice closure body, and the lower ring is located on the underside of the splice closure base. The upper ring is a complete circular ring, and the lower ring is a circular ring with a notch. The upper ring, the radially protruding crimping edge of the lower edge of the splice closure body, the splice closure base, and the lower ring are locked and fixed together by several bolts. This device ensures that the splice closure is secure, stable, and not easily detached, thus maintaining long-term reliable use. The notch on the lower ring allows for easy removal and installation of the lower ring, facilitating maintenance and replacement.

Description

Technical Field

[0001] This utility model relates to a junction box fixing hardware for cable connection, and particularly to a junction box fixing hardware for OPGW optical cable connection. Background Technology

[0002] OPGW (Optical Fiber Composite Overhead Ground Wire) is a special type of optical cable that combines the functions of a power transmission ground wire and optical fiber communication. It is mainly used for lightning protection of high-voltage transmission lines and communication signal transmission.

[0003] When splicing OPGW optical cables, splice boxes are used for installation. A common type of OPGW optical cable splice box uses steel straps to fix the splice box body and the splice box base. It includes a splice box body and a splice box base, which are connected by a stainless steel strap. The bottom of the splice box base has a through hole for the fiber optic composite overhead ground wire to pass through, and the fiber optic composite overhead ground wire is fixed to the through hole by a cable clamping device.

[0004] The shortcomings of this type of steel strip junction box are as follows: the junction box body in the existing technology has a certain height. When it is erected on the cable pole, it is exposed to wind and sun all year round. Especially in areas with strong winds all year round, this type of junction box is fixed by only one steel strip for fixing the junction box body and the junction box base. Over time, the body and the junction box base are prone to loosening or even detaching, resulting in the junction box body not sealing properly and malfunctioning. Utility Model Content

[0005] The purpose of this utility model is to provide a junction box fixing hardware for OPGW optical cable connection, which strengthens the existing installed steel strip junction box, making the box body less likely to fall off, thereby maintaining long-term reliable use.

[0006] Therefore, the purpose of this utility model is achieved as follows: a fixing hardware for OPGW optical cable steel tape splice box, comprising two stainless steel rings, namely an upper ring and a lower ring. The upper ring is fitted onto the body of the splice box, and the lower ring is set on the lower side of the splice box base. The upper ring is a complete circular ring, and the lower ring is a circular ring with a notch. The upper ring, the radially protruding crimping edge of the lower edge of the splice box body, the splice box base, and the lower ring are locked and fixed together by several bolts.

[0007] During installation, this invention uses through bolts to lock and secure the upper ring, the radially extending crimping edge of the junction box body, the junction box base, and the lower ring. The junction box base is then fixed to a pole frame via a separate connector. The OPGW optical cable passes through the junction box base and is connected inside the junction box body. Its advantages are: the tight connection of the upper and lower rings ensures the junction box body is secure and stable, preventing it from easily falling off, thus maintaining long-term reliable use. The notch in the lower ring allows for easy removal and installation of the lower ring, facilitating maintenance and replacement, by allowing it to pass over the OPGW optical cable and the connector to the junction box base. This hardware device is suitable for reinforcing installed steel-belt OPGW junction boxes.

[0008] A further improvement of this invention is that a notch is provided on the inner side of the upper ring according to the width and position of the steel strip; simultaneously, a notch or hole is provided on the outer side of the upper ring corresponding to the boss of the connector box base, thereby accommodating the original steel strip fixing bolts. This allows the upper and lower rings to be installed without removing the original steel strip, eliminating the removal step and making installation more convenient. At the same time, the original steel strip is retained, providing a double fixing effect. Attached Figure Description

[0009] Figure 1 This is an exploded view of a structure of this utility model.

[0010] Figure 2 This is another structural schematic diagram of the present invention.

[0011] In the diagram, 1 is the junction box base, 1a is the connecting boss, 2 is the steel strip, 2a is the folded edge, 3 is the junction box body, 3a is the crimped edge, 4 is the upper ring, and 5 is the lower ring. Detailed Implementation Example 1

[0012] like Figure 1 As shown, the junction box device consists of a junction box body 3 and a junction box base 1. The junction box body 3 is adapted to the junction box base 1. The junction box base 1 is provided with a through hole for the fiber optic composite overhead ground wire to pass through. The junction box body 3 is a cylindrical shape with one end open. The other end of the cylindrical shape is hemispherical or spherical. The bottom of the cylindrical shape is provided with a radially extending crimping edge 3a.

[0013] The fixing hardware for the OPGW optical cable steel tape splice box includes two stainless steel rings, namely the upper ring 4 and the lower ring 5. The upper ring 4 is fitted on the outside of the splice box body 3, and the lower ring 5 is located on the lower side of the splice box base 1. The upper ring 4 is a complete circular ring, and the lower ring 5 is a circular ring with a notch. The upper ring 4, the crimping edge 3a, the splice box base 1 and the lower ring 5 are locked and fixed by several through bolts.

[0014] During installation, the upper ring 4, crimping edge 3a, junction box base 1, and lower ring 5 are locked and fixed using through bolts. The entire device is then fixed to the pole frame via the junction box base 1. The OPGW optical cable passes through the junction box base 1 and is connected inside the junction box body 3. Due to the tight connection of the upper ring 4 and lower ring 5, the junction box body 3 is secure and stable, preventing it from falling off and ensuring long-term reliable use. The notch on the lower ring 5 allows for easy removal and installation, facilitating maintenance and replacement. This device is suitable for OPGW optical cable connections. Example 2

[0015] like Figure 2 As shown, the difference between this embodiment and embodiment 1 is that the two sides of the connector box base 1 are symmetrically provided with connecting bosses 1a, and a steel strip 2 is provided along the outside of the connector box body 3. The steel strip 2 is bent and wrapped around the top of the connector box body 3, and the two ends of the steel strip 2 are tensioned and connected to the connecting bosses 1a. The upper ring 4 is fitted on the outside of the steel strip 2.

[0016] Figure 2 M in the figure shows the axis when the steel strip 2 and the connecting boss 1a are tensioned together. The most direct way to tension them is to fix them together with screws, leaving a gap between them. Tightening the screws will tension the steel strip 2 and the connecting boss 1a together. The end of the steel strip 2 can be a folded edge 2a as shown in the figure. Since the bending strength of the steel strip 2 itself is relatively low, its folded edge 2a can also be replaced with a ring fastener. Of course, it is also feasible to use an elastic connection to tension the steel strip 2.

[0017] To ensure that the connection between the steel strip 2 and the connecting boss 1a does not interfere with the fixing of the upper ring 4, the upper ring 4 may be provided with a notch or hole so that the steel strip 2 and the connecting boss 1a can be tensioned and connected by screws.

[0018] A sealing gasket 6 can also be installed between the junction box base 1 and the junction box body 3 to enhance the seal.

[0019] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A fixing hardware for an OPGW optical cable steel band type joint box, characterized in that: It includes two stainless steel rings, namely an upper ring and a lower ring. The upper ring is fitted onto the outside of the junction box, and the lower ring is located on the lower side of the junction box base. The upper ring is a complete circular ring, and the lower ring is a circular ring with a notch. The upper ring, the radially protruding crimped edge of the lower edge of the junction box body, the junction box base, and the lower ring are locked and fixed together by several bolts.

2. The fixing hardware for the OPGW optical cable steel belt type joint box according to claim 1, characterized in that; The junction box base is provided with symmetrical connecting bosses on both sides, and a steel strip is provided along the outside of the junction box body. The steel strip is wrapped around the top of the junction box body, and the two ends of the steel strip are tensioned and connected to the connecting bosses. The upper ring is fitted on the outside of the steel strip.

3. The fixing hardware for the OPGW optical cable steel belt type joint box according to claim 1 or 2, characterized in that; A sealing gasket is provided between the junction box base and the junction box body.

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