SU1272387A1 - Collapsible duct for laying wires and cables - Google Patents

Abstract

BOXES FOR LAYING WIRES AND CABLES, containing walls and fittings, characterized in that, in order to increase labor productivity in the manufacture and installation and expansion of the field of application, each wall is made in the form of a strip with ribs having semicircular projections on one side and The L-shaped on the other hand, and each connecting piece has an L-shaped profile with three longitudinal grooves corresponding to the external configuration of the protrusions of the edges of the strip and located one on the outside sides of the connecting part and one notch - on the inner side against the associated groove on its outer side.

Description

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a / The invention relates to electrical engineering, in particular to a prefabricated box for laying of wires and cables. A known single-channel assembled structure for laying wires and cables consisting of several parts, some of which are used to form walls, others are of connecting parts, including bolts, nuts, etc. The profile of connecting parts requires additional machining 1. Large the number of different parts (five) and the need for additional machining of individual parts makes it difficult to manufacture and install prefabricated boxes based on the known design and does not contribute to an increase in production flax labor in the manufacture and installation. In addition, single-channel use limits the scope of application of the known device. The purpose of the invention is to create a prefabricated box for laying wires and cables more simple to manufacture and assemble, thereby ensuring an increase in labor productivity, as well as expanding the field of application. The goal is achieved by the fact that in a pre-assembled box for laying wires and cables containing walls and fittings, each wall is made in the form of a strip with ribs having semicircular protrusions on one side and L-shaped form on the other hand, and has an L-shaped profile with three longitudinal grooves corresponding to the external configuration of the protrusions of the strip edges and located one on the outer sides of the connecting piece and one on the inside of the connecting piece ive the corresponding groove on its outer side. Figure 1 shows the wall, end view; 2 shows the connecting part, end view; on fig.Z - a box with continuous I2 7 walls, a general view; figure 4 is the same, the bottom walls forming the bottom, installed with the formation of openings; figure 5 is a diagram of the Assembly boxes. The wire and cable box is assembled from two types of parts — wall 1 (FIG. 1) in the form of a strip with transverse projections along the edges of a semicircular shape 2 on one side and L-shaped form 3 on the other side, and fittings in the form of an L-shaped profile 4 (figure 2) with three longitudinal half-open slots 5 and 6 on the outer sides of the profile and 7 on the inner side of the profile against the corresponding groove 6. The shape of the slots corresponds to the external configuration of the projections. The box (Fig. 3) is assembled from the two types of parts described above and consists of four solid walls — side 8 and 9, top 10 (cover) and bottom 11 (bottom) and two fittings 12 and 13. Using walls of different lengths, You can assemble the box (or tray), in which the bottom wall (bottom) has openings 14 (figure 4). In this box, the side walls 15 are solid, and from the short walls 16 there is a bottom wall (bottom) with openings. The box is assembled as follows (FIG. 5). Walls 18-20 are alternately slid into the grooves of the connecting parts 17 along the contour of the box, with a certain displacement along the length one relative to another, until the box is of the required length. In this case, the box of any length can be assembled without additional parts of the transverse mount. The presence of three longitudinal grooves in the connecting parts allows you to assemble a box that has several channels for laying wires and cables for different purposes. The proposed box consists of a minimum number of parts (two), is simple to manufacture and install, and can be assembled into any number of channels.

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Claims (1)

ASSEMBLY BOX FOR LAYING WIRES AND CABLES, containing walls and connecting parts, characterized in that, in order to increase labor productivity in the manufacture and installation and expand the scope, each wall is made in the form of a strip with ribs having semicircular protrusions on one side and L-shaped on the other hand, and each connecting part has a L-shaped profile with three longitudinal grooves corresponding to the external configuration of the protrusions of the ribs of the strip and located one on the outside nach connecting part and one notch - on the inner side against the associated groove on its outer side.