SU1760049A1 - Formwork for erecting concrete structure - Google Patents

Abstract

Use: in the monolithic construction of the walls of buildings, underground structures and other structures of residential and industrial buildings. SUMMARY OF THE INVENTION: The mechanism for moving the shields provides rotation of the shields through 360 °. around turning eyes fixed on adjacent shields, and the turning drive is made in the form of power cylinders rigidly mounted on shields with rack and pinion engagement interacting with gears mounted on axles. 1 hp f-ly, 5 silt,

Description

The invention relates to the construction and can be used in the construction of monolithic walls of buildings, underground structures and other structures of residential and industrial buildings.

Plywood construction formwork, the shields of which are rotatable around the axes attached to the adjacent shields 1.

Closest to the invention is the formwork with pivoting shields installed with the possibility of vertical movement using lever mechanisms 2.

The disadvantage of this formwork is considerable labor intensity and material intensity, and insufficient labor productivity in its use.

The purpose of the invention is to reduce the labor and material intensity and increase productivity.

This is achieved due to the fact that the shields are installed with the possibility of their rotation by 360, and the mechanism for moving the shields

made in the form of rotary axes mounted on adjacent shields, which are interconnected by rigid rods and equipped with gears mounted on the ends with a drive of their rotation in the form of power cylinders with rack and pinion gears on rods that interact with the shields fixed on the shields rolls.

FIG. Figure 1 shows lift-adjustable formwork for concreting a wall in operation; in fig. 2 - section of the formwork with mechanisms for turning; in fig. 3 - kinematic scheme; Fig 4 is a diagram of the rearrangement of the shield; in fig. 5 is a diagram of the rotation of the shield.

Lifting-adjustable formwork for concrete wall 1 includes shields 2, 3, installed at a height of 1 and 2 Rus. Interconnected formwork panels are interconnected by wedge locks 4, bolts 5 with conical bushings 6. In addition, adjacent (L

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The height of the formwork shields are interconnected by hingedly rigid rods 7 and axles 8.9 (Fig. 3). The gears 10, 11 are located on the axes x 8, 9, respectively. The gears 10, 11 are provided with a drive consisting of fixed cylinders 12, 13 with rack and pinion gear on the rods 14, 15, as well as guide rollers 16, 17,

Workboards 18 with a fencing 19 are attached to the formwork panels.

The formwork works as follows

FIG. 1 lifting-adjustable formwork is in the design position — formwork boards 2, 3 are installed at a height of 1 and 2 rus, the distance between the boards equal to the thickness of the concrete wall 1 is fixed by bolts 5 with wedge locks 4. Concrete is cast into concrete achievement of side stability. Works are carried out from the flooring 18, which has a fencing 19.

After the completion of the concreting of the 1st and 2nd Rus, the aintes of the 1st Rus are rearranged to the height of the 3rd Rus in 2 stages. Stage 1: - wedge locks 4 are released, bolts 5 of sleeve 6 are turned off and removed (Fig. 1 and 2). In the power cylinders 13 (Figs. 3, 4), working pressure is created on the boards of the 2nd Rus, the rod 15 with the pinion engagement is extended along the guide rollers 17 and the gear 11 and the associated shaft 7 are rotated. As a result, the formwork shield 2 is retracted from the concrete wall 1, thereby removing it. The rotation of the rigid cable 7 and the shield 2 connected with it is made 180 ° to the position facing the concrete wall (Fig. 4) to the height of the 3rd Russe. In this case, the shield is held in a vertical position through the engagement of the engagement of the rod 15 and gear 11 among themselves. 2nd stage: - installation of a shield 2 D is performed by facing the concreted wall (Fig. 5).

To do this, the hydraulic cylinders 12, located on the boards 3, are supplied with a working pressure, the rod 14 with the rack and pinion engagement is moved along the guide rollers

17, provided that the gear 11 and the shield 3 were rotated by 180 ° around the axis 8 into the working position with the face toward the concrete wall 1. Then, similarly, the panels on the other side of the concrete wall were rearranged, and wedge locks 4, bolts 5, and conical bushings were installed 6, the working floor 18 is relocated with a fence 19,

The formwork is ready for the next work cycle. Concreting of the next Rus is made. Then the whole process is repeated until the concreting of the erected structure is completed.

Compared with the known formwork, in the claimed reduced metal consumption at

Claims (2)

1. Formwork for the erection of concrete - structures, including rotary shields, installed with the possibility of vertical movement with the help of hinged-lever mechanisms, so that, in order to reduce labor-intensiveness and material intensity, and increase productivity, the shields are installed with the possibility of their rotation 360 °, and the mechanism for moving the shields is made in the form of rotary axes mounted on Adjacent shields, which are interconnected by rigid rods and are equipped with gears mounted on the axles with a rotational drive, rigidly fixed on shields. 2. The formwork according to claim 1, that is, so that the rotational drive of the gears is made in the form of power cylinders rigidly mounted on shields with rack and pinion gears on rods that interact with the shields by means of guides mounted on them commercials. // Shin