SU1323815A1 - Clamp for fastening elastic pipes on rigid branch pipe - Google Patents

Abstract

The invention relates to the field of mechanical engineering and, more specifically, to improve the reliability of fastening various sized elastic tubes to a rigid nozzle with a clamp with a double span with a band collar with cutouts or two wire clips using a clamping device consisting of two rectangular frames on the sides of which Fasten the ends of the clamps with the ends bent outward. Opposite sides of the frames are placed in the end-half-cylindrical cut-outs of the liners, the opposite ends of which have conical surfaces that clamp the bent ends of the clamps when the inserts are tightened with an elastic screw through the holes provided in the inserts. 1 hp ff, 3 ill. with hche from 00

Description

The invention relates to: mechanical engineering and can be used in engineering, where a tight and disconnectable connection of pipelines is necessary.

The purpose of the invention is to increase the reliability of the connection by improving crimping.

FIG. 1 shows a clip with a band clamp; in fig. 2 - section A - A in FIG. ; in fig. 3 - clamp with two wire clamps.

The clamp contains a rigid nozzle 1 connected to an elastic tube 2, crimped by a flexible element in the form of a band clamp 3, the ends of which are fixed with the ends bent outward on the sides of frames 4 and 5 fixed by opposite sides in semi-cylindrical cuts of flat W; , screwed by screw 8 and jammed ends of the yoke with conical surfaces of liners 6 and 7. The yoke has sinusoidal notches reaching the middle of the width of the tape and located at a distance equal to LD where D is the diameter of the elastic tube.

The clamp shown in FIG. 3, has two wire clamps 9 and 10.

The assembly of the clamp and its operation is carried out as follows.

A flexible pipe 2 is put on the rigid nozzle 1 and wrapped with -ieiiT04HhiM with a collar 3. Then, bending the ends of the hose outside, fix the frames 4 and 5. Insert the screw 8 into the sleeve 6 with the threadless hole and install the contributions n 6 into the socket 4. In the frame 5, a plug-in plug 7 with a threaded hole is installed and the plug-in screw 8 is tightened. When the band strap 3 is tensioned, the frames turn in the semi-cylindrical cut-outs of the insert 6 and 7 and their conical surfaces press the ends of the band clamp 3 to the lower sides of the frames 4 and 5. After tightening the protruding ends of the clamp bend in towards the elastic tube 2, as shown in fig. 2 hl / ncr lines.

In another embodiment of the clamp, the elastic ng 2 is wrapped with two wire clamps 9 and 10 (Fig. 3), the ends of which are rolled and are stitched similarly to the BbUijeonncaHHOMy.

With frequent disassembly of the connection of the rigid nozzle 1 with the elastic tube 2, use a screw 8 with a reinforcement with a single head having a knurling.

0

Making the clamp B two girths allows crimping along the entire perimeter, which results in tightness of the joint. Fastening the ends of the clamp bent outward, covering almost half of the perimeter of the sides of the frames, significantly reduces the necessary efforts to secure them by jamming. The integrity of the tape provides increased fastening strength and the magnitude of its tension. The conical surface of the liners, crimping the clamp, provides the possibility of equalizing the tension of the tape across its width and the possibility of fastening two wire clamps. Making a screw of an elastic material relieves thermal compensation and gives the device resistance to vibrations, since deformation is necessary to unscrew the elastically deformed screw. The deformation of the screw aligns and the tension of the wire clamps. The use of two wire clamps or a band clamp with cutouts provides a more complete compression of the elastic tube and increases the reliability of the connection both in mechanical strength and tightness, with the possibility of using different clamps and fastening tubes of different diameters.

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Claims (2)

1. A clamp for fastening elastic tubes on a rigid nozzle containing a clamp, a tightening device, a screw, characterized in that, in order to increase the reliability of the connection, the tightening device is made in the form of two rectangular frames, flat inserts with half-cylindrical cuts in the end faces x and conical surfaces, with the framework fixed by one side in the aforementioned notches, and the clamp is made in the form of a flexible element in two girths, the ends of which skipped between the conical surfaces of the liners and other opposite sides of the frames, and in one of the liners there is a hole through which the nponynj, eH screw, and in the other a threaded hole for the screw, which is made of an elastic material. 2. Clamp as claimed in claim 1, characterized in that sinusoidal notches are made in the flexible element, reaching up to the middle of the element width and located at a distance equal to LD, where D is the outer diameter meter elastic tube. cpuff.1 at cfJueZ 10 2 srig.Z