SU1145205A1 - Device for fitting couplings on asbestos-cement pipes - Google Patents

Abstract

A MOUNT FOR MOUNTING A CLUTCH ON ASBOCEMENT PIPES, containing gear teeth with clamps, a locking mechanism and tension levers, characterized in that, in order to expand its functionality, it is provided with a pressure mechanism and an adjustment bar connected to the tension levers, and made in the form of a screw pair with a locking pawl, and the locking mechanism is made in the form of two segments connected to each other by means of elastic elements, and each segment is connected to the corresponding the tension lever by means of a wedge pair, one half of which is rigidly fixed on the segment, and the other is connected with the possibility of rotation with the tension lever. 2. The device according to claim 1, characterized in that the adjustment bar is installed with the possibility of a fixed change of position. 3. The device according to paragraphs. 1 and 2, characterized in that the elastic elements are adapted to adjust their pipe circumference.

Description

The invention relates to installation work in construction and can be used in the installation of couplings on asbestos-cement pipelines of closed irrigation systems, as well as water supply and sewerage systems.

A device for mounting sleeves on asbestos-cement pipes is known, comprising gear teeth with grippers, a locking mechanism and tension levers.

The known device cannot be used for pipes of different diameters.

The purpose of the invention is to extend the functionality.

This goal is achieved by the fact that a device for mounting couplings on asbestos-cement pipes, containing gear teeth with clamps, locking mechanism and tension levers, is equipped with a pressure mechanism and an adjustment bar connected to the tension levers, and the pressure mechanism is in the form of a screw pair with a locking pawl, and the locking mechanism is made in the form of two segments connected to each other by means of elastic elements, and each segment is connected to the corresponding tensioning lever by means of a wedge pair s, one half of which is rigidly fixed on the segment, and the other connected, can be rotated with the tensioning lever.

Moreover, the adjustment bar can be installed with the possibility of a fixed change of position.

In addition, the elastic elements are adapted to adjust their pipe circumference.

FIG. 1 is a schematic diagram of the device; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. one.

The device consists of a fixing element 1, tension arms 2, in brackets 3 of which holes 4 are drilled for connection with an adjusting bar 5 when working with pipes of different diameters, toothed bars 6 and gripper 7 of coupling 8. Gripper 7 consists (Fig. 4) from corners 9, rigidly interconnected by means of holes 10, as well as by means of axis 11 with gear teeth 6.

The elastic stitch 12 (Fig. 2) is made of two tapes of flexible material connected on one side with the fixing element 1, and between them are overlapped with bolts, for which holes 13 are cut into the corresponding distances between the fixing element 1 and Tension levers 2 position wedge pairs (Figs. 2 and 3), each of which consists of a wedge 14 rigidly fixed to element 1 and a movable wedge 15 connected to the lever 2.

The clamping mechanism (Fig. 2) placed between the levers 2 consists of a body 16 with a pawl 17, an adjusting nut 18 and a screw 19.

Preparing the device for operation consists in installing the adjustment bar 5 into the holes 4 of the brackets 3 of the tension levers 2, fastening the elastic straps 12 and the grips of the grip 7 with bolts of the dimensions corresponding to the diameter of the pipes. Tension levers 2 with a movable wedge 15 of the wedge pair push back to the thin end of the fixed wedge 14.

The device works as follows.

The gripper 7 is mounted on the far edge of the coupling 8, and the fixing element 1 is mounted on the pipe on which the coupling must be mounted. By an abrupt movement of the upper ends of the tension levers 2 to the sides, the fixing element is pressed against the pipe and stopped by the pawl 17, after which the adjusting nut 18 is pressed. After this, the levers 2 pull the coupling 6 over the pipe 6. If the fixing element 1 is not pressed tightly against the pipe, then a wedge of 14 liters 15 wedge pairs, moving relative to each other, is pressed against it.

If, in one stroke of the levers, the clutch did not fall into place, then by moving the levers forward, the tensioning rods 6 move to the next tooth, and then tighten the clutch, etc. This eliminates disassembly of the device.

Thus, according to the invention, the functionality of the device is expanded.

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Claims (3)

DEVICE FOR MOUNTING THE COUPLING ON AN ASBECEMENT PIPE, containing gear rods with grippers, a locking mechanism and tension levers, characterized in that, in order to expand the functionality, it is equipped with a pressure mechanism and an adjustment bar connected to the heavy levers, and the pressure mechanism is made in in the form of a screw pair with a locking dog, and the locking mechanism is made in the form of two segments connected to each other by means of elastic elements, and each segment is connected to the corresponding tension leverage by means of a wedge pair, one half of which is rigidly fixed to the segment, and the other is connected with the possibility of rotation · with the tension lever. 2. The device according to π. 1, characterized in that the adjustment bar is installed with the possibility of a fixed change in position. 3. The device according to paragraphs. 1 and 2, characterized in that the elastic elements are made with the possibility of regulating their length of the girth of the pipe.