SU389420A1 - DEVICE FOR DETERMINING THE STRENGTH OF A BRICK COUPLING WITH A SOLUTION - Google Patents

Description

one

The invention relates to devices for determining the strength of a brickwork, in particular for determining the strength of adhesion of a brick to a mortar directly in the walls of a building.

Devices are known for determining the strength of a brick with a mortar, including mechanisms for the separation of a brick from a mortar, measuring devices, a clamp with rods and corrugated jaws hinged at the ends of the arms.

A disadvantage of the known devices is that when grabbing bricks with deviations in size or in cases where a brick has faces with a deviation from perpendicularity to the base, the central load application is disrupted, which leads to a decrease in the accuracy of tests and the lack of reliability of the breakable brick .

The aim of the invention is to eliminate these drawbacks.

This is achieved by the fact that the clamping device is made with a spherical hinge mounted with the possibility of wedging the levers under load application, and each pair of levers is provided with a connecting pin with spherical nuts at the ends.

FIG. 1 shows a disposed device, general view; in fig. 2 - the same, vnd from above.

The device includes a mechanism / detachment kirnicha from the solution, case 2 with posts 3 equipped with adjusting screws, pressure gauge 4, clamp with t 5, two pairs of levers 6, spherical studs 7, crosshead 8 with rocker, connecting studs 9 with spherical nuts O at the ends, pivotally fixed grooved sponges //.

The device for polishing I have the adherence of the binding of the brick to the solution works in the following way. Before the installation and adjustment racks 5, the device is installed above the prepared Kyiriya masonry pattern, the corrugated sponges 11 are symmetrically mounted on the tank edges of the sample and the nuts 10 are turned off, and then the mechanism / detachment is activated, which; entails upward ti 5, interacting with traverse 8 with a rocker. This is the upward movement of the spherical hinge 7, which, slipping along the pivot cylinder 1 arm 6, creates a force transmitted through levers 6. and d}: bq // on the lateral surfaces of the sample. Force of detachment fixed by gauge 4.

As with the sliding ;; and spherical balls III HpOB 7, the arms of the levers 6 are knocked by the unspring of the crimped sample; K; increased increased ir mo prog orts 1nally ver