RU23900U1 - CAVITY FORMWORK FORMWORK - Google Patents

Abstract

Volumetric climbing formwork containing type-setting, formwork, L-shaped half-tunnel shields forming a tunnel in paired position, shield fastening elements, adjustable length braces made in the form of a tubular lanyard with a screw at one or both ends, rollers and racks, characterized in that the formwork brace at the upper end is equipped with an additional lever with two hinges, one of which is connected with the ceiling shield with a finger, and the upper lanyard eye rests on the other.

Description

Reversible formwork.

The utility model relates to the field of construction and can be used dm erection of monolithic buildings.

From the patent literature, tunnel formwork designs for the construction of monolithic buildings are known, including prefabricated formwork L-shaped half-tunnels, forming a tunnel in a paired position, embedded elements, end-to-end fastening elements of the boards, struts of adjustable length and rollers for moving the formwork. / German patent No. 2426126, E04 Gil / 02.1975 /.

A set of volumetric-permissible tunnel formwork is known, which is the closest analogue and contains tunnel formwork for one gripper, including prefabricated formwork L-shaped half-tunnels and L-shaped panels with an end, forming a tunnel in paired position, embedded elements, butt fastening elements between joints themselves, struts of adjustable length and supporting channel beams for the rigidity of the shields that make up the formwork stabilization system, formwork moving rollers and auxiliary equipment of the scaffold. / RF Patent No. 2171 878, E04G11 / 20, 2000 /.

The slanting of the L-shaped half-tunnel of the volumetric climbing formwork serves to provide a right angle between the planes of the wall and ceiling panels, and to absorb the load from the freshly laid concrete on the ceiling panel during concreting, as well as to tear off the concrete of the ceiling panel during dismantling.

For these purposes, in classical versions, the brace is made of a tubular turnbuckle with a screw on one or both ends allowing, during rotation, to change the length of the brace and, accordingly, the angle between the ceiling and wall panels. The work scheme for each cycle will be implemented as follows:

-Mounting -Position of a right angle between the ceiling and wall panels;

-dismantling - separation of formwork from concrete.

The disadvantage of this technical solution is the duration of the operation requiring highly qualified installers and a surveyor and violation of the right angle between the wall and ceiling panels.

The utility of utility model.

The proposed interchangeable tunnel formwork includes prefabricated formwork L-shaped half-tunnel shields forming a tunnel in a paired position, shield fastening elements, braces of adjustable length, made in

IPC: E04O11 / 20

inward of a tubular lanyard with a screw on one or both ends, formwork rollers and racks. The proposed brace design is hinged to a vertical shield and has an additional lever with two hinges at the upper end of the turnbuckle, one of which is connected to the ceiling shield with a finger, and the upper brace rests on the other.

The technical result achieved by the utility model consists in reducing the time of the installation and dismantling of the formwork, simplifying the tearing of the formwork from concrete, and the ability to maintain a right angle between wall and ceiling shields during long-term operation of the volumetric formwork.

The proposed interchangeable tunnel formwork is illustrated by drawings, where in FIG. 1 shows the mount of the brace - position - closed; in FIG. 2 - also, position - open; in FIG. 3 - general view of the tunnel formwork.

The interchangeable tunnel formwork includes vertical 1 (wall) and horizontal 2 (ceiling) panels, which form a tunnel in paired position, fastening elements for panels, braces 3 and 4 of adjustable length, made in the form of a tubular lanyard with screw 5 at one or both ends mounting boards, rollers 6 and racks (not shown in the drawing). The brace 4 of the formwork is hinged to the vertical shield 1, and at the upper end of the turnbuckle it is equipped with an additional lever 7. The lever 7 has two hinges 8 and 9, one of which is connected to the ceiling shield 2 with the help of finger 10, and the upper hook is supported on the other 9 11 turnbuckles.

When the intermediate hinge on the lever is located on the axis passing between the supports on the vertical and horizontal shields (at the dead center), the lever 7 is closed, the brace in the form of a lanyard with a lever work in the classic version, you can set a right angle. This operation is performed once when setting up the formwork. Further, when dismantling the formwork, it is enough to fold the lever / open / while the intermediate hinge leaves its dead center and creates sufficient force to tear off the ceiling shield 2 from concrete. When the lever 7 returns to the closed position, the right angle between the vertical and ceiling panels is automatically restored.

Thus, one long operation is reduced - the cycle time of installation and dismantling of the formwork is reduced.

Claims (1)

Volumetric climbing formwork containing type-setting, formwork, L-shaped half-tunnel shields forming a tunnel in a paired position, shield fastening elements, adjustable length braces made in the form of a tubular lanyard with a screw at one or both ends, rollers and racks, characterized in that the formwork brace at the upper end is equipped with an additional lever with two hinges, one of which is connected with the ceiling shield with a finger, and the upper lanyard eye rests on the other.