RU182754U1 - HORIZONTAL-SLIDING FORMWORK - Google Patents

Abstract

Usage: the construction of monolithic walls of buildings.

The essence of the utility model lies in the fact that the sliding formwork for erecting walls contains two forms rigidly connected to each other, consisting of internal and external shields fastened with jumpers, the forms are equipped with external vibrators and thrust devices, a horizontal displacement mechanism, which is a worm gear, is located between the forms gearbox with nut with pin and plug.

A mixture capable of hardening (concrete or cement-sand mortar) is poured into molds. Under the influence of vibration, the mixture is molded and compacted. When the screw of the worm gearbox is abutted against the formwork, the force from the nut with the pin is transmitted through the fork to the stops abutted into the molded mixture, thereby causing the formwork to move horizontally, thus forming two walls formed from the compacted mixture along the height of the formwork and the gap between them.

The utility model relates to construction and can be used in the construction of multilayer monolithic walls.

Description

The utility model relates to the field of construction and can be used in the construction of multilayer monolithic walls of heavy concrete or sand-cement mixtures for immediate dismantling.

The purpose of the utility model is to reduce the cost and increase the speed of construction, as well as improving the thermal characteristics of monolithic walls.

From the existing level of technology there is a known method of erecting walls with removable formwork associated with layer-by-layer molding of wall blocks with voids and including setting a mold with removable core formers, laying the mold to be molded, compacting it, lifting removable core formers and molds, creating hollows of wall blocks along the entire length of blocks , and transverse reinforcing elements are placed in the wall, located between the hollow formers when forming the wall block, in the process of laying the moldable mixture, or in azore between wall blocks in the process of filling it with a solution; while the reinforcing elements are made in the form of obliquely oriented reinforcing bars, the direction of inclination of which alternately varies from layer to layer [No. RU 2249086 C1 E04G 11/20, B28V 7/10, publ. 03/27/2005].

Known interchangeable formwork containing a form with handles and a release plate, while the form is made with the expansion downward in the form of a rigid box formed by transverse and longitudinal walls. The mold is equipped with a ramming plane fixed to the frame by means of bolts with an adjustable depth of lowering into the mold, the bolts have adjusting sleeves. [RU 168527 U1 E04G 11/34 publ. 07/02/2017].

Also known is an interchangeable formwork for forming wall blocks containing a mold, a hollow core, fixing pins mating with a hollow core and with the walls of the mold, as well as a release plate in contact with the upper surface of the molded block. The form is made with longitudinal and transverse walls, which are rigidly interconnected by a transverse beam. A beam with longitudinal walls form an opening covering a wall block and closed with a removable transverse wall [RU 2136828, E04G 11/20, B28B 7/10, publ. 09/10/1999]

The disadvantages of these analogues are the high complexity in the construction of walls and the construction of walls in separate blocks, which leads to a loss of monolithicity of the erected walls, some strength and thermal characteristics.

The closest analogue in technical essence to the claimed device is a curb finder (extruder) - a sliding formwork for the device of monolithic borders, including a receiving hopper, a pusher mechanically connected to the engine, and a form mounted on the frame of the cart. [US 6450730 B1 publ. 09/17/2002, US 4,566,823 A publ. 01/28/1986, US 4310293 A publ. 12/12/1982].

The disadvantage of the paver is the impossibility of its use in the construction of monolithic walls

The objective of the utility model is to reduce the cost of construction and create equipment that will allow the construction of a multilayer monolithic wall of two concrete layers with an air gap between them, with the possible subsequent filling of it with insulating material.

This problem is solved due to the fact that the proposed sliding formwork for walling contains two forms rigidly interconnected, consisting of internal and external panels fastened with jumpers, it can be equipped with external vibrators, thrust devices and a horizontal displacement mechanism located between the forms , which is a screw, rigidly abutted at one end in the jumper between the forms, with a nut that, when the screw rotates through the plug, transfers force to the stop devices. After filling with a mixture capable of hardening, the molds synchronously shift horizontally relative to the molded mixture, which is molded in the form of two walls with a gap between them.

The technical effect of this design of sliding formwork is expressed in improving the thermal performance of the monolithic wall being erected, which is achieved due to the lack of mounting holes and gaps left in traditional methods of monolithic construction and the use of interchangeable forms when stripping the walls, and the formation of an air gap between the inner and outer walls which can subsequently be filled with effective heat-insulating materials.

The essence of the proposed model is illustrated by drawings, which depict:

in FIG. 1 - General view in a perspective view,

in FIG. 2 is a side view

in FIG. 3 - section aa top view,

in FIG. 4 - work on the shift of forms, section side view, the initial position,

in FIG. 5 - work on the shift of forms, section side view, end position.

The proposed formwork consists of two forms 1, consisting of internal and external panels, fastened with jumpers on top and from one side, also being the sides of the formwork. The forms are interconnected by means of a plate 4, a jumper 10 and a receiving funnel. A motor 5 is mounted on the plate 4. Vibrators are mounted on the outer form shields. The engine 5 and the vibrators 2 are connected by flexible shafts 13. A bias mechanism is placed inside the molds, which is a worm gear screw 9 with a nut with a pin 7 and a fork 6. The worm gear is driven by the motor 11 by screwing a nut 9 with a pin 7 onto the screw 9. The screw 9 reinforced by the heel 12 abuts against the plate 4, and through the nut with the pin 7 and the plug 6 abuts against the stops 8.

Formwork works as follows:

On the prepared base, formwork is installed. Then, the stops 8 are installed in the molds 1. Then, the plug 6 is put on the pin with the nut 7 and fixed with a bolt. Then a receiving funnel 3 is put on top of the molds. In mold 1, a mixture capable of hardening (rigid concrete mixture or cement-sand mortar) is poured through the receiving funnel 3. The vibrators 2 are turned on by turning on the engine 5, which unscrews the vibrators 2 through flexible shafts 13. From the vibration emitted by the vibrators 2, the mixture settles in the molds 1, the mixture is added to the molds 1, the vibrators are turned on, the operation is repeated until the mixture precipitation stops. Then, from the engine 11, the moving part drives the worm gear-screw 9, which gradually turns the nut with the pin 7 onto itself. When pressure is transmitted from the nut with the pin 7 through the plug 6 to the stops 8 abutted into the formed mixture through the screw 9, which is abutted in form 1, form 1, the formwork is shifted relative to the stops 8 rested in the molded concrete mixture. The forms are shifted synchronously due to the fact that they are rigidly interconnected by the plate 4, the jumper 10 and the receiving funnel 3. As a result of the horizontal displacement of the formwork between the formwork and the freshly laid mixture, cavities are formed. The mixture is poured into the formed cavities and the sequence of actions for its laying and displacement of the form is repeated. To arrange subsequent tiers along the height of the wall, between the molded inner and outer walls, a metal welded mesh or a plastic rigid mesh is laid and wall casting operations are repeated after the proposed formwork is installed on the finished lower tier. In order to prevent the mixture from sliding during the installation of the first wall segment, the formwork is abutted on the rigid base with its free side, which is subsequently removed or dismantled.

Claims (1)

A sliding formwork for erecting a wall, containing two forms rigidly connected to each other, consisting of internal and external panels, fastened with jumpers, characterized in that it is equipped with external vibrators, thrust devices and a horizontal displacement mechanism, which is a worm gear with a nut with a pin and a fork located between the forms.

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