CN114150857A - Construction method of attached type automatic climbing elevator shaft safety protection platform - Google Patents

Abstract

The invention discloses a construction method of an attached safety steel platform for automatically climbing an elevator shaft, which is mainly characterized in that the attached safety steel platform has the same height as a structural layer and automatically climbs by utilizing two rack rails with the length equal to the height of 2 structural layers, the steel protection platform is supported by a triangular support frame, a grid frame matched with the steel platform in size is formed at the top of the triangular support frame, and a folding clamping seat and a power motor matched with a lifting rail rack are arranged at the lower part of an inclined support of the triangular support frame. The invention adopts the attached climbing safety protection steel platform with the same height as the structural layer, is attached and fixed with the shaft beam and the shaft wall body of the elevator shaft through the folding clamping seat and the limiting screw, and continuously climbs along with the increase of the floors, thereby not only improving the working efficiency and reducing the labor intensity, but also having good integrity, safety, reliability and convenient installation, simultaneously being capable of being recycled and saving materials.

Description

Construction method of attached type automatic climbing elevator shaft safety protection platform

Technical Field

The invention relates to an automatic climbing operation platform, in particular to a construction method of an attached climbing safety steel platform in a building main body elevator shaft.

Background

The construction method commonly used for the safety protection of the elevator shaft of the high-rise building at present comprises the following steps: the hole is reserved in the wall body of the building main body core tube, the I-shaped steel is placed in the reserved hole to serve as a steel tube frame body for supporting, and the steel tube is adopted to erect the supporting frame body to serve as safety protection. The method has the disadvantages that the height of the erected frame is increased along with the rising of the building main body, and when the height of the frame body exceeds 50m, the stability of the frame body is not firm, the occupied materials are more, the renting time is long, and the method is not beneficial to saving the engineering cost. Meanwhile, the scaffold is troublesome to set up, time is consumed, workload of high-altitude operation is increased invisibly, operation danger is caused, efficiency is low, and labor intensity is high.

The application number is 202011227434.7's national utility model discloses "an assembled protection platform for in building elevator well", and the application number is 201521074779.8's national utility model discloses "a promotion formula safety steel platform for in building subject elevator well". The devices disclosed in the two patents need to be lifted by a tower crane in a matching way when lifted, and do not relate to an attached automatic lifting method.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a construction method of an attached automatic climbing elevator shaft safety protection platform, which is low in construction cost, convenient and quick and high in construction efficiency.

In order to solve the technical problems, the technical scheme of the invention is as follows:

the invention discloses a construction method of an attached automatic climbing elevator shaft safety protection platform, which comprises the following steps:

the method comprises the following steps of firstly, manufacturing a protection platform, wherein the protection platform comprises two triangular supports arranged at left and right intervals, the top of an inclined strut and an upright post of each triangular support are fixedly connected with a lower flange plate of an I-shaped steel arranged along the horizontal direction, a plurality of cross rods arranged along the horizontal direction are welded between the inclined struts of the two triangular supports at intervals up and down, a square lattice frame is welded on the upper flange plates of the two I-shaped steels, and a pattern steel plate serving as a protection plane is welded on the top surface of the square lattice frame; the left side wall and the right side wall of the patterned steel plate are respectively in threaded connection with a limit screw;

the bottom parts of the inclined struts of the two triangular support frames are respectively connected with a foldable clamping seat, each foldable clamping seat comprises a horizontal strut and a vertical strut, and one end of the horizontal strut, one end of the vertical strut and the lower end of the inclined strut are hinged and connected through bolts; the horizontal support is provided with an arc-shaped groove, the vertical support and the inclined support below the bolt are fixed with fixing nails, the axes of the bolt and the fixing nails are arranged along the horizontal direction and in the same vertical plane, and the fixing nails penetrate through the arc-shaped groove and can slide along the fixing nails;

fixing two rack guide rails on a hoistway beam on the rear wall of an elevator hoistway at intervals of left and right along the vertical direction through bolts;

step three, hoisting the protection platform into an elevator shaft, rotating the horizontal support of each folding type clamping seat around a bolt and forming an L-shaped structure by a vertical support, clamping the L-shaped structure on a shaft beam of the elevator shaft, wherein the top edge of the patterned steel plate is 0.08-0.10 m lower than the floor surface, and then tightly attaching the protection platform to the shaft beam or the shaft wall without gaps by adjusting the length of the limit screws on the left side and the right side of the patterned steel plate;

fixing a guide roller on the left side and the right side of the front side wall and the rear side wall of the I-steel of the protective platform respectively to enable the guide rollers to be in sliding contact with the inner wall of the elevator shaft;

step five, mounting a power motor at the lower part of the inclined strut of each triangular support frame and adjusting a gear connected on the power motor to be meshed and matched with the rack guide rail;

sixthly, constructors perform the construction operation of the Nth layer of elevator shaft on the protection platform, after the construction of the Nth layer of operation layer is finished, bolts of a fixed rack guide rail on the shaft beam are loosened, a power motor rotates to lift the rack guide rail from the N-1 layer to the N layer and fix the rack guide rail, a limit screw is loosened, a motor rotates to lift the protection platform from the N-1 layer to the N layer, a horizontal support rotates downwards around the bolts to coincide with a vertical support according to the rotation range limited by an arc-shaped groove in the lifting process of the protection platform, the protection platform rotates around the bolts and rotates vertical supports of each folding type clamping seat to form an L-shaped structure to be clamped on the shaft beam of the elevator shaft after being in place, the length of the limit screws on the left side and the right side of the patterned steel plate is adjusted to enable the limit screws to tightly support the shaft beam or the shaft wall, and then the construction of the N +1 layer is performed;

and step seven, repeating the step six until the main engineering is finished.

The invention has the advantages and positive effects that: this elevartor shaft protection platform adopts the automatic safe steel platform that climbs of inserted such as height with the structural layer, can prevent that the staff from being damaged by the bruise when the platform goes up and down, prevents the accident that drops, can avoid the part on the platform to drop. The floor boundary beam and the core barrel wall body of the lower elevator shaft are installed and fixed and are continuously lifted along with the increase of the floors, so that the working efficiency is improved, the labor intensity is reduced, the integrity is good, the construction operation is safe and reliable, and the installation is convenient. Meanwhile, the material can be recycled, and the material is saved.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the method, the following briefly introduces the drawings that are needed in the embodiments or the description of the prior art:

fig. 1 is a schematic perspective view of a structure constructed by using a construction method of an attached automatic climbing elevator shaft safety protection platform according to the present invention;

FIG. 2 is a side view of the structure shown in FIG. 1;

fig. 3 is a schematic structural diagram of the folding type card seat in the structure shown in fig. 2.

Detailed Description

In order to make the technical problems, technical solutions, characteristic effects, and beneficial effects to be solved by the present invention clearer and clearer, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments:

referring to fig. 1 to 3, the construction method of the attached automatic climbing elevator shaft safety protection platform of the present invention includes the following steps:

firstly, manufacturing a protection platform, wherein the protection platform comprises two triangular support frames 2 arranged at left and right intervals, the top of an inclined strut 2-1 and an upright post 2-2 of each triangular support frame 2 are fixedly connected with a lower flange plate of an I-shaped steel 13 arranged along the horizontal direction, a plurality of cross rods 5 arranged along the horizontal direction are welded between the inclined struts 2-1 of the two triangular support frames 2 at upper and lower intervals, a square lattice 14 is welded on the upper flange plate of the two I-shaped steels 13, and a pattern steel plate serving as a protection plane 1 is welded on the top surface of the square lattice 14; the left side wall and the right side wall of the patterned steel plate are respectively in threaded connection with a limit screw;

the bottom parts of the inclined struts 2-1 of the two triangular support frames 2 are respectively connected with a folding type clamping seat, each folding type clamping seat 8 comprises a horizontal strut 8-1 and a vertical strut 8-2, and one end of the horizontal strut 8-1, one end of the vertical strut 8-2 and the lower end of the inclined strut 2-1 are hinged and connected through a bolt 10; an arc-shaped groove is formed in the horizontal support 8-1, fixing nails 11 are fixed on the vertical support 8-2 and the inclined support 2-1 below the bolt 10, the axes of the bolt 10 and the fixing nails 11 are arranged along the horizontal direction and in the same vertical plane, and the fixing nails 11 penetrate through the arc-shaped groove and can slide along the fixing nails 11;

fixing two rack guide rails 6 on a hoistway beam 3 of the rear wall of an elevator hoistway at intervals left and right along the vertical direction through bolts;

step three, hoisting the protection platform into an elevator shaft, then rotating the horizontal support 8-1 of each folding type clamping seat around a bolt and forming an L-shaped structure by the vertical support 8-2 to be clamped on a shaft beam 3 of the elevator shaft, wherein the top edge of the patterned steel plate is 0.08-0.10 m lower than the floor surface, and then enabling the limiting screw to tightly support the shaft beam or the shaft wall by adjusting the length of the limiting screw at the left side and the right side of the patterned steel plate;

fixing a guide roller 9 on the left side and the right side of the front side wall and the rear side wall of the I-steel 13 of the protective platform respectively to enable the guide rollers to be in sliding contact with the inner wall of the elevator shaft;

step five, mounting a power motor 7 at the lower part of the inclined strut 2-1 of each triangular support frame 2 and adjusting a gear connected on the power motor to be meshed and matched with the rack guide rail 6;

sixthly, constructors perform the construction operation of the Nth layer of elevator shaft on the protective platform, after the construction of the Nth layer of operation layer is finished, loosening the bolts for fixing the rack guide rail on the shaft beam 3, rotating the power motor 7 to lift the rack guide rail 6 from the N-1 layer to the N layer and fix the rack guide rail 6, loosening the limit screw and rotating the motor 7 to lift the protective platform from the N-1 layer to the N layer, in the lifting process of the protective platform, the horizontal support 8-1 rotates downwards around the bolt 10 according to the rotation range limited by the arc-shaped groove and is overlapped with the vertical support 8-2, after the protective platform is in place, the horizontal support 8-1 of each foldable clamping seat rotates around the bolt and the vertical support 8-2 form an L-shaped structure which is clamped on a hoistway beam 3 of an elevator shaft, and the limiting screw rods tightly support the hoistway beam or the hoistway wall by adjusting the length of the limiting screw rods on the left side and the right side of the patterned steel plate; and then constructing an N +1 layer.

And step seven, repeating the step six until the main engineering is finished.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims (1)

1. A construction method of an attached automatic climbing elevator shaft safety protection platform is characterized in that: the method comprises the following steps:

the method comprises the following steps of firstly, manufacturing a protection platform, wherein the protection platform comprises two triangular support frames which are arranged at left and right intervals, the top of an inclined strut (2-1) and an upright post (2-2) of each triangular support frame (2) is fixedly connected with a lower flange plate of an I-shaped steel (13) which is arranged along the horizontal direction, a plurality of cross rods (5) which are arranged along the horizontal direction are welded between the inclined struts of the two triangular support frames at intervals from top to bottom, a square lattice frame (14) is welded on the upper flange plate of the two I-shaped steels (13), and a pattern steel plate which is used as a protection plane (1) is welded on the top surface of the square lattice frame; the left side wall and the right side wall of the patterned steel plate are respectively in threaded connection with a limit screw;

the bottom parts of the inclined struts of the two triangular support frames are respectively connected with a foldable clamping seat, each foldable clamping seat (8) comprises a horizontal strut (8-1) and a vertical strut (8-2), and one end of the horizontal strut, one end of the vertical strut and the lower end of the inclined strut are hinged and connected through bolts; the horizontal support is provided with an arc-shaped groove, the vertical support and the inclined support below the bolt are fixed with fixing nails (11), the axes of the bolt and the fixing nails are arranged along the horizontal direction and in the same vertical plane, and the fixing nails penetrate through the arc-shaped groove and can slide along the fixing nails;

fixing two rack guide rails (6) on a hoistway beam on the rear wall of an elevator hoistway at intervals of left and right along the vertical direction through bolts;

step three, hoisting the protection platform into an elevator shaft, rotating the horizontal support of each folding type clamping seat around a bolt and forming an L-shaped structure by a vertical support, clamping the L-shaped structure on a shaft beam of the elevator shaft, wherein the top edge of the patterned steel plate is 0.08-0.10 m lower than the floor surface, and then enabling the limiting screw rods to tightly support the shaft beam or the shaft wall by adjusting the length of the limiting screw rods on the left side and the right side of the patterned steel plate;

fixing a guide roller on the left side and the right side of the front side wall and the rear side wall of the I-steel (13) of the protective platform respectively to enable the guide rollers to be in sliding contact with the inner wall of the elevator shaft;

step five, mounting a power motor at the lower part of the inclined strut of each triangular support frame and adjusting a gear connected on the power motor to be meshed and matched with the rack guide rail;

sixthly, constructors perform the construction operation of the Nth layer of elevator shaft on the protection platform, after the construction of the Nth layer of operation layer is finished, bolts of a fixed rack guide rail on the shaft beam are loosened, a power motor rotates to lift the rack guide rail from the N-1 layer to the N layer and fix the rack guide rail, a limit screw is loosened, a motor rotates to lift the protection platform from the N-1 layer to the N layer, a horizontal support rotates downwards around the bolts to coincide with a vertical support according to the rotation range limited by an arc-shaped groove in the lifting process of the protection platform, the protection platform rotates around the bolts and rotates vertical supports of each folding type clamping seat to form an L-shaped structure to be clamped on the shaft beam of the elevator shaft after being in place, the length of the limit screws on the left side and the right side of the patterned steel plate is adjusted to enable the limit screws to tightly support the shaft beam or the shaft wall, and then the construction of the N +1 layer is performed;

and step seven, repeating the step six until the main engineering is finished.

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