RU2826102C1 - Ladder module - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to modular staircases and can be used for interfloor connection inside premises. Technical result is achieved by the fact that the ladder module includes front and rear vertical plates, each of which is equipped with lugs for movable connection with another module in vertical plane, and connected to each other by means of permanent connection by means of structure from rolled metal sheets.

EFFECT: increased rigidity of the structure.

3 cl, 10 dwg

Description

The invention relates to construction, in particular to modular staircases, and can be used for interfloor connections inside a building.

A modular staircase element is known [Patent RU No. 120679. IPC E04F 11/035, published 09/27/2012]. The modular staircase element is a vertical cylinder - a pipe with a platform welded to the top for fastening a step, connected by two U-shaped profiles to another cylindrical vertical element with a longitudinal slot between the profile attachment points, into which, when assembling the staircase, a vertical cylinder of the upper step support is inserted and fixed in the required position in height and rotation angle with a bolt and nut by tightening the profiles together, which makes it possible to assemble a staircase with any step height and any step rotation angle, including spiral staircases, without using special equipment.

The disadvantages of the modular element of the staircase are the increased gap between the vertical sections of the pipes, which after assembly must be eliminated by compressing the horizontal sections using bolts and nuts, while the sections themselves have the appearance of a channel, and therefore are a weak structure.

At the moment, the known solutions used do not provide the ability to use independent design solutions (covers) and at the same time a rigid (strong) design of the module for the staircase. The proposed technical solution simplifies the work, providing freedom of design, since under any cover there will be a rigid (strong) module.

The objective is to create a module that provides simplified assembly and ease of manufacture.

The technical result is an increase in the rigidity of the structure.

The technical result is achieved due to the fact that the module consists of two vertical plates with lugs for movable connection of modules between themselves in the vertical plane. The plates are connected to each other by rolled metal with a permanent connection. Moreover, rolled metal in the form of a hollow pipe, channel, I-beam, angle, plate can be used as a connection of the plates. The module can be manufactured by casting, using a 3D printer. On one of the plates there is a plate that fixes the mutual arrangement (straight, right, left) of the modules between themselves.

An eye is a machine part that has a hole in it for connection with other parts.

Fig. 1, 2 shows the module.

Fig. 3 shows a projection of the module, side view.

Fig. 4, 5 shows the projection of two modules.

Fig. 6 shows a module with cladding.

Fig. 7 shows four modules with cladding.

Fig. 8 shows a projection of a finished staircase made of modules with cladding, rear view.

Fig. 9 shows a projection of a finished staircase made of modules with cladding, front view.

Fig. 10 shows a projection of a finished staircase made of modules with cladding, view from the left.

The module includes two (front and rear) plates with lugs for movable connection of modules between themselves in the vertical plane and a structure made of rolled metal connecting the plates between themselves with a permanent connection. The modules are movably connected to each other by lugs and a bolted connection.

The rolled metal products that can be used are hollow pipes, channels, I-beams, angles, and plates, for example, made of structural steel.

The module can be manufactured using a casting method or a 3D printer.

On one of the plates, a plate with marks can be made, the step of which is equal to 5 degrees. This plate fixes the mutual arrangement of the modules among themselves. For this purpose, a hole can be made in the module, where this fixing plate enters and a hole is provided, the same as on it itself, through which the bolt for fixing the rotation of the modules will pass and be fixed with a nut, thereby fixing the modules among themselves. Also, only one hole can be made on the module for the bolted connection of the fixing plate with the hole of the module, while the fixing plate will be fixed from the top of the module, and not pass through an additional hole.

The front and rear plates are connected to each other by a permanent connection (welding), using a metal product suitable for this module (profile or round pipe, sheet metal, channel, angle, I-beam, etc.). An additional stiffener can be installed in the lower part of the module, which is also the basic element determining the exact mutual arrangement of the front and rear plates during their assembly. The bracket (fastening bowl) of the step and brackets for fastening the cladding are then welded to the module.

The modules are connected to each other using lugs and bolts. The number of lugs on each module plate can be different, at least two. There is no gap between the bolt and the lug hole due to the bolt being pressed into the lug holes with its own thread, which eliminates the sagging of the ladder immediately after assembly.

The lugs, the shape of the plates and the shape of the module cladding can be made in different (any) shapes.

Let's look at an example of assembling and installing a module.

To assemble the module, take two plates with the required number of lugs, for example, two on each plate, for example, triangular in shape and sheet metal (previously connected to each other by welding to match the shape of the plates) of a size equal to the height of the step. On one of the plates, for example the front one, make (weld, cast during manufacturing) a fixing plate. On the second plate, for example the back one, make a hole for the fixing plate to pass through and make an element with a hole for a bolted connection.

Plates are welded to the rolled metal on both sides. In this way, the required number of modules are manufactured. At the installation site, the modules are connected to each other by fixing the lugs of one plate to the lugs of the other plate, threading a bolt through the lug holes and fixing it by tightening (screwing) it into the thread located in one of the lugs or with a nut. Simultaneously with fixing the lugs to each other, the fixing plate is threaded into the hole of the plate of another module and fixed with the hole made in advance on the other module using a bolted connection.

Due to the fact that the sheet metal is fixedly attached to the plates and the modules are connected to each other in the vertical plane, the rigidity (strength) of the structure is increased. This structure and the permanent connection of its elements eliminates any mobility of the plates and the modules themselves.

During installation, when connecting modules together, the rotation angle of each module is immediately adjusted by rotating the module plates relative to each other to the required position. This position (rotation) is fixed by marks on the fixing plate or determined by marks on the fixing plate, the step of which is equal to 5 degrees. To rotate one module relative to another, for example, by 20 degrees to the right, all bolts connecting the lugs and the fixing plate are unscrewed (loosened) to a state that allows rotation. The fixing plate is shifted to the left by four marks from the initial position and all bolts are screwed back (tightened to the stop). In this case, the module has turned relative to the other by 20 degrees to the right.

By adjusting the angle of rotation, we get a spiral, helical or straight staircase.

The upper module is attached to the ceiling or wall. The lower module of the stairs is attached to the floor of the lower floor (staircase base).

Due to the design of the module, fixing them together with a connection that eliminates any movement (displacement) of the elements, the increased rigidity of the staircase is ensured, which eliminates the need to install an additional support element (pipe) between the floor and the staircase modules.

The assembled modules are covered with a stair cladding, for example, like fish scales.

Claims (3)

1. A ladder module comprising front and rear vertical plates, each of which is provided with lugs for movable connection with another module in a vertical plane, and connected to each other by a permanent connection using welding with a sheet metal structure. 2. A module for a staircase according to item 1, characterized in that the structure made of sheet metal is a hollow pipe, channel, I-beam, angle or plate. 3. A module for a staircase according to item 1, characterized in that a plate is welded to one of the plates, intended for fixing the relative position of adjacent staircase modules between themselves.