CN203632196U - Minor-diameter bent spherical adjusting device for armour cable based on double bulge loops - Google Patents

Abstract

The utility model discloses a minor-diameter bent spherical adjusting device for an armour cable based on double bulge loops, and the device comprises a cable inlet and a cable outlet. A spherical cable-bending mechanism is disposed between the cable inlet and the cable outlet. The spherical cable-bending mechanism is formed in a mode that a fixed hemisphere is buckled on a movable hemisphere, and the junction surface rotation is formed between the two hemispheres. The junction surface rotation between the two hemispheres is that the junction surface of the fixed hemisphere is provided with a bulge loop I, the junction surface of the movable hemisphere is provided with a bulge loop II, and the exteriors of the bulge loops are respectively sleeved by an annular groove-shaped clamping hoop. The junction surfaces of the fixed and movable hemispheres are respectively provided with a collision bead. The device, which employs the above technical scheme, is low in cost, is simple in structure, is convenient to use, and can achieve the bending of the armour cable or other types of cables in a range from 0 to 90 degrees.

Description

Small-diameter curved spherical adjustment device for armored cables based on double-convex rings

technical field

The utility model relates to accessories for cables. Specifically, the present invention relates to adjustable connectors for changing the direction of cables.

Background technique

Armored cables are used in a wide variety of applications. They are especially suitable for applications requiring electrical insulation from the surrounding environment. The construction of these cables allows them to be used in locations that can be called hazardous, as well as locations that are not. Typically, rigid metal conduits are used for electrical wiring in hazardous locations. However, flexible armored cables may be used in place of rigid conduit if permitted by applicable electrical codes. In general, rigid conduit is more difficult and more expensive to install than armored cable. Therefore, users prefer to use armored cables whenever the electrical code allows.

Armored cables typically include a conductive flexible metal jacket that protects the conductors extending therein from abrasion, impact, etc. Additionally, the metal jacket enables the cable to be grounded along its entire length. The metal sheath is usually covered with an outer plastic or rubber sheath, thereby adding waterproof protection to the cable, as well as protecting the metal sheath from corrosive elements. Although armored cable is more flexible and easier to install than rigid conduit, its bend radius makes it difficult to form tight bends, and so installation requires elbows or other fittings in some cases.

In the past, 90 degree bends of armored cables have been accomplished using different certified fittings (eg, pull elbows connected to straight fittings) or short single 90 degree fittings. Similarly, fittings for other bending angles may also be used, thus requiring the user to stock a variety of different angle fittings. This was found to be costly and inconvenient.

Thus, there is a need for quick and easy installable accessories for changing the direction of armored cables, as well as other types of cables. There is also a need for adjustable connectors for armored and other types of cables that allow the armored cable to bend over a range of at least 0-90 degrees.

The utility model patent No. 200910134775.7 also proposes a method, but the cable angle adjustment connector has a complicated structure, high cost and inconvenient, and cannot effectively realize the angle adjustment of the armored cable.

Utility model content

The purpose of the utility model is to provide a spherical rotary connector with simple structure and low cost for cable angle adjustment.

In order to achieve the above object, the utility model adopts the following technical solutions:

A small-diameter bending spherical adjustment device for armored cables based on a double convex ring, which includes a cable inlet and a cable outlet, and a spherical cable bending mechanism is arranged between the cable inlet and the cable outlet; The spherical cable bending mechanism described above is: a fixed hemisphere is buckled on a movable hemisphere, and a joint surface is set between the two hemispheres to rotate; The ring I and the movable hemisphere are provided with a protruding ring II at the joint surface, and the two protruding rings are covered with an annular groove-shaped clamp.

Touch beads are arranged on the joint surface of the two hemispheres.

The included angle between the joint surface between the two hemispheres and the axial direction of the cable inlet and the cable outlet is 30°--60°.

The utility model adopting the above-mentioned technical solution has low cost, simple structure and convenient use, and can realize bending of armored cables or other types of cables within the range of 0-90 degrees.

Description of drawings

Fig. 1 is the outline structure diagram of the utility model.

Fig. 2 is a sectional view of the utility model along the axial direction of the cable tube.

Detailed ways

As shown in Figures 1 and 2, a small-diameter curved spherical adjustment device for armored cables based on double convex rings includes a cable inlet 1 and a cable outlet 2, and the cable inlet 1 and cable A spherical cable bending mechanism is arranged between the pipe outlets 2; the spherical cable bending mechanism is as follows: a fixed hemisphere 3 is buckled on a movable hemisphere 4, and a joint surface is set between the two hemispheres to rotate.

The joint surface rotation between the two hemispheres means: the fixed hemisphere 3 is provided with a convex ring I26 at the joint surface, the movable hemisphere 4 is provided with a convex ring II25 at the joint surface, and the two convex rings are covered with an annular groove-shaped clamp 27.

It should be noted that the above-mentioned joint surface is an annular disk with a hole in the middle. The angle between the joint surface between the two hemispheres and the axis of the cable inlet 1 and the cable outlet 2 is 30°--60°, which can be 30°, 40°, 45°, 50°, 60° ° in any one.

Touch beads 8 are arranged on the joint surface of the two hemispheres.

The working principle of the utility model is: insert the armored cable into the cable inlet 1 and the cable outlet 2, rotate the movable hemisphere 4, and rotate the appropriate angle according to the bending angle of the required cable, and then the bent armor can be obtained. cable.

Claims (3)

1. the bending spherical adjusting device of the armoured cable minor diameter based on double convex ring, it comprises cable inlet pipe mouth (1) and cable outlet spout (2), it is characterized in that: spherical cable bend mechanism is set between described cable inlet pipe mouth (1) and cable outlet spout (2); Described spherical cable bend mechanism is: it is upper that a fixing hemisphere (3) is fastened on a movable hemisphere (4), establishes faying face rotation between two hemispheres; Between described two hemispheres, establishing faying face rotation refers to: fixing hemisphere (3) arranges bulge loop I(26 at faying face place), movable hemisphere (4) arranges bulge loop II(25 at faying face place), two bulge loop overcoat annular flute profile clips (27).

2. the bending spherical adjusting device of the armoured cable minor diameter based on double convex ring according to claim 1, is characterized in that: on described two hemispheres faying face, establish collision bead (8).

3. the bending spherical adjusting device of armoured cable minor diameter based on double convex ring according to claim 1, is characterized in that: the angle between the faying face between described two hemispheres and cable inlet pipe mouth (1), cable outlet spout (2) are axial is 30 °--60 °.

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