SU1414942A1 - Foundation formwork - Google Patents

Abstract

The invention relates to the construction and can be applied in the construction of foundations of monolithic reinforced concrete. The aim of the invention is to increase reliability and reduce labor costs for disposable works. To do this, on the 1st formwork shield I, there are golkn 3, on the vertical regiments.x of which are fixedly fixed P) 1e sulfur and 4, ijiapiiiipiio connected with movable shackles 24, mounted on Mexaini3 e section 11a, bkn. The structure consists of the bottom II and sides 12 and equipped with a ratchet mechanism, during which the bottom I rests on the hardened concrete foundation 10 and OTpi nuieT from it П1, нты I. 9 и.к

Description

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The invention relates to the construction and can be used in the construction of foundations of monolithic reinforced concrete.

The purpose of the invention is to increase reliability and save labor costs for formwork work.

FIG. 1 shows a formwork, a plan view; {and FIG. 2 - the same, side view, after friction from concrete; in fig. 3 - rarabobochny mechanism, section A-A in FIG. 2 Kprava half) and view along arrow B in FIG. 2 (left half), after the formation of the foundation; in fig. 4 - the same, after separation. concrete formwork; in fig. 5 - lifting device before stripping; in fig. 6 - the same, after stripping; in fig. 7 — lump-like structure with a lifting device, side view; in fig. 8 - known spring lock clamp; in fig. 9 - interconnection of the angles of opening of the sides in a tray-like structure and the angle formed by the full edge of the shield with the horizontal plane.

The formwork includes a shield 1 with kerchiefs 2 fixedly attached to it, a corner bezel 3 and earrings 4 fixedly attached from the inside. Between the diagonals and vertical edges of the framing of the kerchief there is a mechanism 5 for stripping of a barreled design with lifting form strips 6. Vertical edges of the kerchief are fastened with sides of the tray-like structure of the demolishing mechanism using spring locking clips 7. The formwork is rearranged by the mounting hinges 8 fixed at the ends lot-shaped structures with the help of a sling 9 when dismantling it from a ready-made foundation 10.

The stripping mechanism includes a tray-shaped structure, which includes a straight lamellar bottom 11, beads 12 with transverse plates 13 and 14, the first having an opening for the mounting loop, and the second is attached to the sides with a gap 14 between its bottom edge and bottom, one third of the board height. Attached to the sides are an anchor axis 15 of the lifting form unit and an axle 16 of the ratchet device. A sleeve 17 is rotatably mounted on the supporting axis, to which the elongated shoulder 18 of the two shoulders is fixedly attached, with the supporting pin 19 fixedly attached to it and the supporting plate 20 forming the socket. On the other hand, a shortened shoulder is attached to the sleeve, 21, on the end of which, using a nut 22, on a movable axis 23 is a hingedly mounted movable link 24, equipped with ratchets. 25, the upper end of which is equipped with a rod

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26 and the nuts 27 are rotatably fastened to the fixed shackle 4 of the vertical bezel of the shield shield. The ratchet 28 is in cooperation with the ratchet teeth of the movable shackle by means of the spring 29 s and the cotter pin 30. The drawings also show a removable rod-lever 31.

The formwork works as follows.

Initially, the shields 1 are laid out on a 10 horizontal platform with short inner sides to a single center with a gap between corners 3 at the top sufficient for spacing between them of the stripping mechanism 5 in such a way that the openings of its moving earrings 24 are in the alignment of the openings of the fixed earrings 4. The rod 26 and the nut 27 of the earrings are temporarily fastened together, after which through the slings 9 and the mounting loops 8

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the formwork is lifted by crane to the project

2Q positions, in which, similarly to the top, the lower shackles 24 and 4 are fastened by a pin 26 and nuts 27 with their centering and twisting until the earrings fully touch, allowing the moving shackle 24 to be rotated with respect to the shank 26. fixedly fastened to the sides 12 of the trough-shaped structure with the help of spring clamps 7. The formwork is transferred by crane to the frame prepared for the foundation of the column and placed in the design position. Slings 9 are removed and layer-by-layer concreting of the foundation is performed. Before stripping, the spring locking clips 7 are removed, and the lifting dismantling

.,; - the device is in the initial position.

For demolding, the removable rod-lever 31 is inserted into the slot formed by the supporting lip 19 and the anvil plate 20 (Fig. 5) and by turning the stem 40 of the lever 31 in the plane of the shelves 3 and 12 in the direction from the center of the finger 19 is lowered downwards. In this case, the rotational force is transmitted through the elongated shoulder 18 of the rocker arm to its shortened shoulder 21 by turning around the supporting axis 15. The shortened shoulder through the moving axis transmits the force to the moving lug 24, causing it to rise up, and through the rod 26 and the fixed shackle 4, lower the vertical flange with the detachment from the concrete, the kerchief 2 and the shield 1. At the same time, the ratchet 28 under the influence of the spring 29 all the time is in contact with the ratchet teeth 25 of the movable link prevents it from moving downwards when the rotating force is weakened from the rod 5 5 levers 31.

Thus, in turn, all kerchiefs with shields 1, and then the same rod-lever 31, are torn apart from the concrete,

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inserting it into the gap of the tray-shaped structure and lifting the edges of the plate 14 are separated from the concrete alternately and the stripping mechanisms 5. The formwork is freely removed from the finished foundation with a crane and transferred to the cleaning and lubrication platform, after which the cycle is repeated.

Claims (1)

Invention Formula Foundation formwork, including sloped formwork panels and a formwork unit, characterized in that. 0 in order to increase reliability and reduce labor, the cost of the formwork works, yro is installed on each shield. i-ki, on the vertical shelves of which the fixed earrings are rigidly fixed to the movable earrings, and the device for demolding is made in the form of a tray, a ratchet mechanism from the rail and a spring-loaded ratchet mounted on the side wall of the tray, and the side stacks of the tray are located between vertical shelf corners, and the rail is attached to the movable earring. cpas.i about L fi.e. d five 2 10 2 nineteen / - / - / --- // / f 12 n 15 21 fig.6 gz ge 29 f 25  12  23 lover1 // by H Ug, fi.9