SU1283445A1 - Overlap joint of plane components - Google Patents

Abstract

The invention relates to mechanical engineering and can be used to overlap parts with flat mating surfaces, for example metal flanged air ducts. The aim of the invention is to ensure the reliability of the connection with the minimum dimensions of the notches forming the locking tabs (FL). The joint consists of mating on flat surfaces of parts 1 and 2 and FL4, 7 and 5, 6, made on the mating surfaces of parts 1 and 2, respectively. FL 4, 5.6 and 7 are formed by making Z-shaped slits. This form of making the gaps is optimal for making the FL of the required (calculated) dimensions with the minimum energy consumption for their execution. 1 hp f-ly, 4 ill. W with

Description

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The invention relates to mechanical engineering and can be used to overlap parts with flat mating surfaces, for example metal flanged ducts.

The purpose of the invention is to ensure the reliability of the connection with minimal dimensions of the gaps and to reduce energy consumption during execution, as well as to ensure the tightness of the connection.

Fig. 1 shows a connection element with a Z-shaped notch line and a bending line of the locking tabs, a general view; figure 2 - connection in the collection; on fig.Z - section aa in figure 2; figure 4 - section bb in fig.Z.

The joint contains connected parts I and 2, sealing material 3, locking tabs 4 and 5, 6 and 7, bent in opposite directions in pairs. I

The connection of parts is carried out as follows.

The jointed parts x 1 and 2 with the sealing material 3 installed between them is assembled in a Z-shaped notch. The locking lines formed by the notch are folded in opposite directions in opposite directions through the resulting window 8. In this case, the outer tab 4 of part I and the inner tab 5 of part 2, as well as the outer tab 6 of part 2 and the inner tab 7 of part 1 in pairs

they are bent through the resulting window 8, as a result of which the foot 4 covers the wall of the part 2, and the foot 6 covers it. The wall of the part 1. This ensures a tight fixed connection of parts 1 and 2 through the sealing material 3,

The strength of the joint is governed by the number of slots.

The Z-shaped notch allows to obtain a maximum of the strength of the joint and a minimum of energy consumption when fulfilling the dimensions of the legs of the required (calculated) value.

It is possible to bend the locking tabs in opposite directions both on different sides of the package of connected parts, and on one side.

Claims (1)

1. The connection of flat parts with overlap, made with notches forming the bend fixing legs, spread out in opposite directions, which means that, in order to ensure reliable connection with the minimum dimensions of the notches and, accordingly, the minimum energy consumption for their execution, the notches are made Z- shaped, and the locking tabs divorced on both sides of the package of parts to be joined. 2, A compound according to claim 1, characterized in that, in order to ensure the tightness of the joint, it is provided with a sealing material installed between the parts, / fl / fft / L cfuBi