CN213837426U - Steel stair that is used for workman to go up and down operation before prefabricated stair do not install - Google Patents

Steel stair that is used for workman to go up and down operation before prefabricated stair do not install Download PDF

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Publication number
CN213837426U
CN213837426U CN202022381021.6U CN202022381021U CN213837426U CN 213837426 U CN213837426 U CN 213837426U CN 202022381021 U CN202022381021 U CN 202022381021U CN 213837426 U CN213837426 U CN 213837426U
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CN
China
Prior art keywords
stair
steel
vertical adjustable
support
transverse part
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Expired - Fee Related
Application number
CN202022381021.6U
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Chinese (zh)
Inventor
潘志兵
张先发
代坤
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China Construction Second Engineering Bureau Co Ltd
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China Construction Second Engineering Bureau Co Ltd
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Priority to CN202022381021.6U priority Critical patent/CN213837426U/en
Application granted granted Critical
Publication of CN213837426U publication Critical patent/CN213837426U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A steel stair for workers to work up and down before being installed on a prefabricated stair comprises steps, step supports and railings fixed on the sides of the steps far away from a wall body template, wherein each step support comprises a first transverse part lapped on an upper construction platform, a second transverse part lapped on a lower construction platform and an inclined support part connected between the first transverse part and the second transverse part, at least two vertical adjustable supports are arranged at the bottom of the first transverse part, the top surfaces of the vertical adjustable supports abut against the bottom surface of the first transverse part, and the vertical adjustable supports are fixed with a first channel steel arranged on the first transverse part through first U-shaped bolts; a supporting diagonal rod is arranged between the vertical adjustable support and the oblique supporting part. The utility model discloses can make and become the regularization instrument, reach several turnovers and use, reduce manpower and materials input to guarantee the construction safety of stair position working face, have fine popularization and practical value, can produce good economic benefits after extensive popularization and application.

Description

Steel stair that is used for workman to go up and down operation before prefabricated stair do not install
Technical Field
The utility model relates to a construction field specifically belongs to a steel stair that is used for workman to go up and down operation before prefabricated stair do not install.
Background
The prefabricated building deepens the staircase into a prefabricated staircase, and the prefabricated staircase is generally hoisted and constructed after the concrete of the floor is poured and is placed on a concrete corbel which is poured. Before the concrete on the layer is poured, a man-riding way is usually erected on the outer frame or a formwork support is erected for workers to go up and down the working face, and the construction mode has the disadvantages of large workload and low construction efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a steel stair that is used for workman's operation from top to bottom before prefabricated stair do not install solves the technical problem that prior art construction is complicated, the efficiency of construction is low.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a steel stair that is used for workman's operation from top to bottom before prefabricated staircase is not installed, support and fix the railing of keeping away from wall body template side of marking time including marking time, marking time and support first horizontal portion, the second horizontal portion of overlap joint on lower part construction platform and the diagonal bracing portion of connection between first horizontal portion and second horizontal portion on upper portion construction platform, its characterized in that: the bottom of the first transverse part is provided with at least two vertical adjustable supports, the top surfaces of the vertical adjustable supports are abutted against the bottom surface of the first transverse part, and a first U-shaped bolt is fixed with a first channel steel arranged on the first transverse part; and a supporting inclined rod is further arranged between the vertical adjustable support and the inclined support part, and the supporting inclined rod and the vertical adjustable support are fixed with the vertical adjustable support through a second U-shaped bolt and fixed with a second channel steel arranged at the bottom of the inclined support part through a bolt.
Further preferably, the adjacent vertical adjustable supports are connected through at least two connecting cross rods, and two ends of the two connecting cross rods are fixedly connected with the vertical adjustable supports through buckles.
Furthermore, a notch of the channel steel faces downwards, and the bottom surface of the channel steel is welded and fixed with the first transverse part.
Further, the flange plate on the second channel steel is fixed with the bottom surface of the inclined supporting portion in a spot welding mode, and screw holes for bolts to penetrate through are formed in the bottom plate at even intervals.
Further, the vertical adjustable support comprises an upper inner pipe and a lower outer pipe which are inserted into each other, and a bolt for fixing the upper inner pipe and the lower outer pipe.
In addition, the upper inner pipe or the lower outer pipe is uniformly provided with through holes at intervals.
More preferably, the step support is formed by splicing square steel.
Compared with the prior art the utility model has the following characteristics and beneficial effect:
the utility model discloses can adopt profiled steel sheet mark time, weld into the stair shape, both sides welding is on the I-steel, satisfy and bear workman's walking load and alleviate the dead weight, the railing is used for protecting the workman safety from top to bottom and when the operation on the steel platform, it is equipped with upright adjustable support to mark time the support below, play the effect of supporting steel stair, can satisfy and adjust steel stair upper shed height operation face 200mm according to construction needs, do not influence the construction on operation layer, set up the people's horse way or set up the template support on putting up with the prior art outrigger and compare, the preparation is simple, the convenient technological advantage of construction.
The utility model discloses can make and become the regularization instrument, reach several turnovers and use, reduce manpower and materials input to guarantee the construction safety of stair position working face, have fine popularization and practical value, can produce good economic benefits after extensive popularization and application.
Drawings
FIG. 1 is a schematic structural view of a steel stair for workers to go up and down before the prefabricated stair is installed;
FIG. 2 is a schematic view of the connection between the vertically adjustable support and the first channel;
fig. 3 is a connection diagram of the supporting diagonal rod and the vertically adjustable supporting portion according to the present invention;
fig. 4 is a schematic view of a connection structure of a support diagonal bar and a second channel steel according to the present invention;
fig. 5 is a schematic structural view of the vertically adjustable support according to the present invention.
Reference numerals: 1-stepping; 2, step supporting; 3-a railing; 4-a first transverse portion; 5-a second transverse portion; 6-an oblique support part; 7-supporting the diagonal rods; 8-U-shaped bolt II; 9-bolt; 10-channel steel II; 11-U-shaped bolt I; 12-first channel steel; 13-adjustable support in vertical direction; 131-upper inner tube; 132-a lower outer tube; 133-latch.
Detailed Description
In order to make the technical means, innovative features, objectives and functions realized by the present invention easy to understand, the present invention will be further described below.
The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
A steel stair for up-and-down operation of workers before being installed on a prefabricated stair comprises a step 1, a step support 2 and a rail 3 fixed on the side, far away from a wall body template, of the step 1, wherein at least four lifting holes (not shown in the figure) are formed in the step 1, the step support 2 is formed by splicing square steel and fasteners through bolts, the step support 2 comprises a first transverse portion 4 lapped on an upper construction platform, a second transverse portion 5 lapped on a lower construction platform and an inclined support portion 6 connected between the first transverse portion 4 and the second transverse portion 5, at least two vertical adjustable supports 13 are arranged at the bottom of the first transverse portion 4, as shown in figure 2, the top surfaces of the vertical adjustable supports 13 abut against the bottom surface of the first transverse portion 4, and a U-shaped bolt 11 is fixed with a channel steel 12 arranged on the first transverse portion 4; a supporting inclined rod 7 is further arranged between the vertical adjustable support 13 and the inclined support part 6, as shown in fig. 3 and 4, the supporting inclined rod 7 and the vertical adjustable support 13 are fixed with the vertical adjustable support 13 through a second U-shaped bolt 8, and are fixed with a second channel steel 10 arranged at the bottom of the inclined support part 6 through a bolt 9.
The adjacent vertical adjustable supports 13 are connected through at least two connecting cross rods (not shown in the figure), and two ends of the two connecting cross rods are fixedly connected with the vertical adjustable supports 13 through buckles. 12 notches of the channel steel are downward, the bottom surface of the channel steel is welded and fixed with the first transverse portion 4, the flange plate on the channel steel II 10 is fixed with the bottom surface of the inclined supporting portion 6 in a spot welding mode, screw holes used for bolts 9 to penetrate through are formed in the bottom plate at even intervals, and the channel steel II 10 is parallel to the inclined supporting portion 6.
As shown in fig. 5, the vertically adjustable support 13 includes an upper inner tube 131 and a lower outer tube 132 inserted into each other, and a pin 133 for fixing the upper inner tube 131 and the lower outer tube 132, wherein the upper inner tube 131 or the lower outer tube 132 is uniformly provided with through holes at intervals.
The construction method comprises the following steps:
1) deepening drawings: deepening a forming steel stair manufacturing drawing according to a field construction drawing;
2) welding a setting tool: manufacturing a shaped steel stair tool in a factory or a construction site according to a deepened drawing, and painting for protection;
3) hoisting for use: the manufactured stereotyped steel stair tool can be hoisted to a working surface for use after being checked and accepted.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. The utility model provides a steel stair that is used for workman to go up and down operation before prefabricated staircase is not installed, including marking time (1), mark time support (2) and fix railing (3) of keeping away from wall template side in marking time (1), mark time support (2) including overlap joint first horizontal portion (4) on upper construction platform, overlap joint second horizontal portion (5) on lower construction platform and connect diagonal bracing portion (6) between first horizontal portion (4) and second horizontal portion (5), its characterized in that: the bottom of the first transverse part (4) is provided with at least two vertical adjustable supports (13), the top surfaces of the vertical adjustable supports (13) are abutted against the bottom surface of the first transverse part (4), and the vertical adjustable supports are fixed with a first channel steel (12) arranged on the first transverse part (4) through a first U-shaped bolt (11); still be equipped with between vertical adjustable support (13) and diagonal bracing portion (6) and support down tube (7), it is fixed with vertical adjustable support (13) through two (8) of U type bolt with vertical adjustable support (13) to support down tube (7), and is fixed with two (10) of channel-section steel of locating diagonal bracing portion (6) bottom through bolt (9).
2. The steel stair of claim 1, wherein the steel stair is used for workers to go up and down before the prefabricated stair is installed, and comprises: the adjacent vertical adjustable supports (13) are connected through at least two connecting cross rods, and two ends of the two connecting cross rods are fixedly connected with the vertical adjustable supports (13) through buckles.
3. The steel stair of claim 1, wherein the steel stair is used for workers to go up and down before the prefabricated stair is installed, and comprises: the first channel steel (12) is downward in notch, and the bottom surface of the first channel steel is welded and fixed with the first transverse part (4).
4. The steel stair of claim 1, wherein the steel stair is used for workers to go up and down before the prefabricated stair is installed, and comprises: and the upper flange plate of the second channel steel (10) is fixed with the bottom surface of the inclined supporting part (6) in a spot welding manner, and screw holes for bolts (9) to pass through are formed in the bottom plate at uniform intervals.
5. The steel stair of claim 1, wherein the steel stair is used for workers to go up and down before the prefabricated stair is installed, and comprises: the vertical adjustable support (13) comprises an upper inner pipe (131) and a lower outer pipe (132) which are inserted into each other, and a plug pin (133) used for fixing the upper inner pipe (131) and the lower outer pipe (132).
6. The steel stair for workers to go up and down before the prefabricated stair is installed according to claim 5, wherein: the upper inner pipe (131) or the lower outer pipe (132) is uniformly provided with through holes at intervals.
7. The steel stair of claim 1, wherein the steel stair is used for workers to go up and down before the prefabricated stair is installed, and comprises: at least four lifting holes are arranged on the step (1).
8. The steel stair for workers to go up and down before the prefabricated stair is not installed according to any one of claims 1 to 7, wherein the steel stair comprises: the step support (2) is formed by splicing square steel.
CN202022381021.6U 2020-10-23 2020-10-23 Steel stair that is used for workman to go up and down operation before prefabricated stair do not install Expired - Fee Related CN213837426U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022381021.6U CN213837426U (en) 2020-10-23 2020-10-23 Steel stair that is used for workman to go up and down operation before prefabricated stair do not install

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022381021.6U CN213837426U (en) 2020-10-23 2020-10-23 Steel stair that is used for workman to go up and down operation before prefabricated stair do not install

Publications (1)

Publication Number Publication Date
CN213837426U true CN213837426U (en) 2021-07-30

Family

ID=77010699

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022381021.6U Expired - Fee Related CN213837426U (en) 2020-10-23 2020-10-23 Steel stair that is used for workman to go up and down operation before prefabricated stair do not install

Country Status (1)

Country Link
CN (1) CN213837426U (en)

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210730

CF01 Termination of patent right due to non-payment of annual fee