CN215331281U - Hoisting structure of hollow steel stair - Google Patents
Hoisting structure of hollow steel stair Download PDFInfo
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- CN215331281U CN215331281U CN202120510123.5U CN202120510123U CN215331281U CN 215331281 U CN215331281 U CN 215331281U CN 202120510123 U CN202120510123 U CN 202120510123U CN 215331281 U CN215331281 U CN 215331281U
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Abstract
The utility model discloses a hoisting structure of a hollow steel stair, which comprises the steel stair, a lower end traction mechanism, an upper end traction mechanism and a main hoisting mechanism, wherein the lower end of the steel stair is provided with a first lower hoisting hole and a second lower hoisting hole, the upper end of the steel stair is provided with a first upper hoisting hole and a second upper hoisting hole, the middle part of the steel stair is provided with the main hoisting hole, a first traction steel wire rope penetrates through the first lower hoisting hole, a second traction steel wire rope penetrates through the second lower hoisting hole, a third traction steel wire rope penetrates through the first upper hoisting hole, a fourth traction steel wire rope penetrates through the second upper hoisting hole, the first traction steel wire rope and the second traction steel wire rope are both connected with the upper end traction mechanism, the third traction steel wire rope and the fourth traction steel wire rope are both connected with the lower end traction mechanism, and the main hoisting steel wire in the main hoisting hole is connected with the main hoisting mechanism. The utility model hoists the steel stairs under traction at two ends, effectively adapts to irregular holes in the floor slab, is convenient to hoist and has high efficiency and safety.
Description
Technical Field
The utility model belongs to the technical field of hollow steel stairs of irregular plate column shear walls, and particularly relates to a hoisting structure of a hollow steel stair.
Background
Along with the development of social economy and the improvement of aesthetic requirements of people, building layout and structural types are increasingly complex and changeable, and the structural type is developed from plane regulation, space flatness to space irregularity, attractive appearance and high headroom.
Irregular hole layouts exist in each floor slab in the reinforced concrete irregular plate column shear wall, and the steel stair needs to be erected in the irregular hole hollow of the plate column shear wall structure, so that vertical transportation tools such as tower cranes, truck cranes and the like adopted by the existing steel stair cannot be effectively adapted, and the hoisting is difficult and the efficiency is low. Therefore, at present, a hoisting structure of a hollow steel stair is needed, the upper end and the lower end of the steel stair are dragged through the upper end traction mechanism and the lower end traction mechanism, the steel stair is hoisted through the main hoisting mechanism, the irregular hole in a floor slab is effectively adapted, the hoisting is convenient and efficient, and the hoisting safety is improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the defects in the prior art are overcome, and the hollow steel stair hoisting structure is simple in structure and reasonable in design, the upper end and the lower end of the steel stair are pulled by the upper end traction mechanism and the lower end traction mechanism, the steel stair is hoisted by the main hoisting mechanism, the irregular hole in a floor slab is effectively adapted, the hoisting is convenient and efficient, and the hoisting safety is improved.
In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a hoisting structure of cavity steel stair which characterized in that: the steel stair hoisting device comprises a steel stair arranged between a lower floor slab and an upper floor slab, a lower end traction mechanism for drawing the lower end of the steel stair, an upper end traction mechanism for drawing the upper end of the steel stair, and a main hoisting mechanism for hoisting the steel stair;
first lower hoisting holes and second lower hoisting holes are symmetrically formed in two sides of the lower end of the steel stair, first upper hoisting holes and second upper hoisting holes are symmetrically formed in two sides of the upper end of the steel stair, main hoisting holes are symmetrically formed in two sides of the middle of the steel stair, a first traction steel wire rope penetrates through the first lower hoisting holes, a second traction steel wire rope penetrates through the second lower hoisting holes, a third traction steel wire rope penetrates through the first upper hoisting holes, a fourth traction steel wire rope penetrates through the second upper hoisting holes, and main hoisting steel wires penetrate through the two main hoisting holes;
the number of the lower end traction mechanisms is two, the two lower end traction mechanisms are respectively a first lower end traction mechanism and a second lower end traction mechanism, the number of the upper end traction mechanisms is two, the two upper end traction mechanisms are respectively a first upper end traction mechanism and a second upper end traction mechanism, the first traction steel wire rope is connected with the first lower end traction mechanism, the second traction steel wire rope is connected with the second lower end traction mechanism, the third traction steel wire rope is connected with the first upper end traction mechanism, the fourth traction steel wire rope is connected with the second lower end traction mechanism, and the main hoisting steel wire is connected with the main hoisting mechanism.
Foretell hoisting structure of cavity steel stair, its characterized in that: the first lower end traction mechanism comprises a first hoop arranged on the first column, a first bolt arranged in the first hoop in a penetrating mode and a first manual hoist hooked on the first bolt, and the first manual hoist is connected with a first traction steel wire rope;
the second lower end traction mechanism comprises a second hoop arranged on the second column, a second bolt arranged in the second hoop in a penetrating mode and a second manual hoist hooked on the second bolt, and the second manual hoist is connected with a second traction steel wire rope;
the first upper end traction mechanism comprises a third hoop arranged on the third column, a third bolt arranged in the third hoop in a penetrating way and a third hand block hooked on the third bolt, and the third hand block is connected with a third traction steel wire rope;
the second upper end traction mechanism comprises a fourth hoop arranged on the fourth column, a fourth bolt arranged in the fourth hoop in a penetrating mode and a fourth hand-driven block hooked on the fourth bolt, and the fourth hand-driven block is connected with a fourth traction steel wire rope.
Foretell hoisting structure of cavity steel stair, its characterized in that: the main hoisting mechanism comprises a first embedded part and a second embedded part which are arranged on a top floor, two I-shaped steels connected between the first embedded part and the second embedded part, a hanging rod arranged between the two I-shaped steels and an electric hoist hooked on the hanging rod, and the electric hoist is connected with a main hoisting steel wire;
an upper rectangular hole is formed in the top floor slab, the first embedded part and the second embedded part are located on the inner side wall of the upper rectangular hole, and the I-shaped steel and the hanger rod are located in the upper rectangular hole.
Foretell hoisting structure of cavity steel stair, its characterized in that: polygonal openings are formed in the lower floor slab and the upper floor slab, a lower embedded part is arranged on the lower floor slab, an upper embedded part is arranged on the inner side wall of the polygonal opening of the upper floor slab, two connecting plates are welded on the upper embedded part, the upper end connecting part of the steel stair is located between the two connecting plates, the upper end connecting part and the connecting plates of the steel stair are fixedly connected through high-strength bolts, and the lower end connecting part of the steel stair is welded with the lower embedded part.
Foretell hoisting structure of cavity steel stair, its characterized in that: a plurality of layers of middle floor slabs are arranged between the top floor slab and the upper floor slab, and the first column, the second column, the third column and the fourth column penetrate through the lower floor slab, the upper floor slab, the middle floor slab and the top floor slab;
the pulley supporting mechanism comprises a middle embedded part arranged on the middle floor slab, a bottom plate arranged on the middle embedded part, a telescopic rod arranged on the bottom plate, a top plate arranged at the top of the telescopic rod, a U-shaped mounting seat arranged at the top of the top plate and a fixed pulley arranged on the U-shaped mounting seat, and the first traction steel wire rope, the third traction steel wire rope and the fourth traction steel wire rope penetrate through the fixed pulley.
Compared with the prior art, the utility model has the following advantages:
1. the utility model has simple structure, reasonable design, simple and convenient installation and arrangement, convenient reutilization and reduced hoisting construction cost.
2. The two lower end traction mechanisms are respectively a first lower end traction mechanism and a second lower end traction mechanism, the first lower end traction mechanism is connected with a first traction steel wire rope at the lower end of the steel stair, and the second lower end traction mechanism is connected with a second traction steel wire rope at the lower end of the steel stair; the two upper end traction mechanisms are respectively a first upper end traction mechanism and a second upper end traction mechanism, the first upper end traction mechanism is connected with a third traction steel wire rope at the upper end of the steel stair, the second upper end traction mechanism is connected with a fourth traction steel wire rope at the upper end of the steel stair, and the stability and the safety of the steel stair in hoisting are improved through traction at four points at two ends.
3. The steel stair lifting device is provided with the main lifting mechanism, the main lifting mechanism is connected with the middle part of the steel stair through the main lifting steel wire, and the steel stair is lifted and pulled four times through the main lifting mechanism, so that the tread of the steel stair is lifted in a horizontal state when the steel stair is lifted, the lifting stability is improved, and the steel stair is convenient to correct in the lifting process.
4. The steel stair is arranged between the lower floor slab and the upper floor slab, and crosses clearance of polygonal holes on the lower floor slab and the upper floor slab, so that the attractiveness is improved; in addition, the hoisting safety is improved through the traction of the cross layer.
In conclusion, the steel stair hoisting device is simple in structure and reasonable in design, the upper end and the lower end of the steel stair are dragged by the upper end traction mechanism and the lower end traction mechanism, the steel stair is hoisted by the main hoisting mechanism, the irregular hole in a floor slab is effectively adapted, the hoisting is convenient and efficient, and the hoisting safety is improved.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the pulley support mechanism of the present invention.
1-lower floor slab; 2-upper floor slab; 3-third column;
3-1-a third traction wire rope; 3-2-a third hoop; 3-third bolt;
3-4-third hand hoist; 4-fourth column; 4-1-a fourth haul wire;
4-2-a fourth hoop; 4-3-fourth bolt; 4-fourth hand-drive block;
5-a first column; 5-1 — a first haul steel cord; 5-2-a first hoop;
5-3 — first bolt; 5-4-first hand-operated hoist; 6-a second column;
6-1-a second traction wire rope; 6-2-a second hoop; 6-3-second bolt;
6-4-second hand-drive block; 7-steel stairs; 7-1-a first lower hoisting hole;
7-2-a first upper lifting hole; 7-3-main hoisting hole; 8-1-lower embedded part;
8-2-upper embedded part; 8-3-connecting plate; 9-1-lower end connection;
9-2-upper end connection portion; 10-high strength bolt; 11-main hoisting steel wire; 12-top floor slab; 12-1 — a first embedded part; 12-2 — a second embedded part;
15-i-steel; 13-intermediate floor slab; 13-1-intermediate embedded part;
14-a boom; 16-an electric hoist; 17-polygonal opening;
18-a pulley support mechanism; 18-1-a base plate; 18-2-telescoping rod; 18-3-top plate; 18-4-U-shaped mounting base; 18-5-fixed pulley.
Detailed Description
As shown in fig. 1, the utility model comprises a steel stair 7 arranged between a lower floor 1 and an upper floor 2, a lower end traction mechanism for drawing the lower end of the steel stair 7, an upper end traction mechanism for drawing the upper end of the steel stair 7, and a main hoisting mechanism for hoisting the steel stair 7;
a first lower hoisting hole 7-1 and a second lower hoisting hole are symmetrically arranged on two sides of the lower end of the steel stair 7, a first upper hoisting hole 7-2 and a second upper hoisting hole are symmetrically arranged on two sides of the upper end of the steel stair 7, a main hoisting hole 7-3 is symmetrically arranged on two sides of the middle of the steel stair 7, a first traction steel wire rope 5-1 is arranged in the first lower hoisting hole 7-1 in a penetrating manner, a second traction steel wire rope 6-1 is arranged in the second lower hoisting hole in a penetrating manner, a third traction steel wire rope 3-1 is arranged in the first upper hoisting hole 7-2 in a penetrating manner, a fourth traction steel wire rope 4-1 is arranged in the second upper hoisting hole in a penetrating manner, and main hoisting steel wires 11 are arranged in two main hoisting holes 7-3 in a penetrating manner;
the number of the lower end traction mechanisms is two, the two lower end traction mechanisms are respectively a first lower end traction mechanism and a second lower end traction mechanism, the number of the upper end traction mechanisms is two, the two upper end traction mechanisms are respectively a first upper end traction mechanism and a second upper end traction mechanism, the first traction steel wire rope 5-1 is connected with the first lower end traction mechanism, the second traction steel wire rope 6-1 is connected with the second lower end traction mechanism, the third traction steel wire rope 3-1 is connected with the first upper end traction mechanism, the fourth traction steel wire rope 4-1 is connected with the second lower end traction mechanism, and the main hoisting steel wire 11 is connected with the main hoisting mechanism.
In this embodiment, the first lower end traction mechanism comprises a first hoop 5-2 arranged on the first column 5, a first bolt 5-3 arranged in the first hoop 5-2 in a penetrating manner, and a first manual hoist 5-4 hooked on the first bolt 5-3, wherein the first manual hoist 5-4 is connected with a first traction steel wire rope 5-1;
the second lower end traction mechanism comprises a second hoop 6-2 arranged on the second column 6, a second bolt 6-3 arranged in the second hoop 6-2 in a penetrating mode and a second manual hoist 6-4 hooked on the second bolt 6-3, and the second manual hoist 6-4 is connected with a second traction steel wire rope 6-1;
the first upper end traction mechanism comprises a third hoop 3-2 arranged on the third column 3, a third bolt 3-3 arranged in the third hoop 3-2 in a penetrating way and a third manual hoist 3-4 hooked on the third bolt 3-3, and the third manual hoist 3-4 is connected with a third traction steel wire rope 3-1;
the second upper end traction mechanism comprises a fourth hoop 4-2 arranged on the fourth column 4, a fourth bolt 4-3 arranged in the fourth hoop 4-2 in a penetrating mode and a fourth manual hoist 4-4 hooked on the fourth bolt 4-3, and the fourth manual hoist 4-4 is connected with a fourth traction steel wire rope 4-1.
In the embodiment, the main hoisting mechanism comprises a first embedded part 12-1 and a second embedded part 12-2 which are arranged on a top floor 12, two I-beams 15 which are connected between the first embedded part 12-1 and the second embedded part 12-2, a suspender 14 which is arranged between the two I-beams 15 and an electric hoist 16 which is hooked on the suspender 14, wherein the electric hoist 16 is connected with a main hoisting steel wire 11;
an upper rectangular hole is formed in the top floor 12, the first embedded part 12-1 and the second embedded part 12-2 are located on the inner side wall of the upper rectangular hole, and the I-shaped steel 15 and the hanger rod 14 are located in the upper rectangular hole.
In this embodiment, polygonal holes 17 are formed in both the lower floor slab 1 and the upper floor slab 2, a lower embedded part 8-1 is arranged on the lower floor slab 1, an upper embedded part 8-2 is arranged on the inner side wall of the polygonal hole 17 of the upper floor slab 2, two connecting plates 8-3 are welded on the upper embedded part 8-2, an upper end connecting part 9-2 of the steel stair 7 is located between the two connecting plates 8-3, the upper end connecting part 9-2 and the connecting plates 8-3 of the steel stair 7 are fixedly connected through high-strength bolts 10, and a lower end connecting part 9-1 of the steel stair 7 is welded with the lower embedded part 8-1.
As shown in fig. 2, in this embodiment, a multi-layer middle floor 13 is disposed between the top floor 12 and the upper floor 2, and the first column 5, the second column 6, the third column 3, and the fourth column 4 penetrate through the lower floor 1, the upper floor 2, the middle floor 13, and the top floor 12;
a pulley supporting mechanism 18 is arranged on the middle floor slab 13 on the upper floor slab 2, the pulley supporting mechanism 18 comprises a middle embedded part 13-1 arranged on the middle floor slab 13, a bottom plate 18-1 arranged on the middle embedded part 13-1, an expansion rod 18-2 arranged on the bottom plate 18-1, a top plate 18-3 arranged on the top of the expansion rod 18-2, a U-shaped mounting seat 18-4 arranged on the top of the top plate 18-3 and a fixed pulley 18-5 arranged on the U-shaped mounting seat 18-4, and the first traction steel wire rope 5-1, the third traction steel wire rope 3-1 and the fourth traction steel wire rope 4-1 penetrate through the fixed pulley 18-5.
In the embodiment, two lower end traction mechanisms are respectively a first lower end traction mechanism and a second lower end traction mechanism, the first lower end traction mechanism is connected with a first traction steel wire rope 5-1 at the lower end of the steel stair 7, and the second lower end traction mechanism is connected with a second traction steel wire rope 6-1 at the lower end of the steel stair 7; the two upper end traction mechanisms are respectively a first upper end traction mechanism and a second upper end traction mechanism, the first upper end traction mechanism is connected with a third traction steel wire rope 3-1 at the upper end of the steel stair 7, the second upper end traction mechanism is connected with a fourth traction steel wire rope 4-1 at the upper end of the steel stair 7, and the stability and the safety of the steel stair 7 in hoisting are improved through traction at four points at two ends.
In this embodiment, set up main hoisting machine and construct, main hoisting machine constructs through main steel wire and the 7 middle parts of steel stair of hanging up and connects, constructs through main hoisting machine and realizes lifting by crane to steel stair, and four traction so that steel stair lift by crane the tread of steel stair is the horizontality and lifts by crane, has improved the stability of lifting by crane, and the convenient correction to steel stair lift by crane the in-process.
In the embodiment, the steel stair is arranged between the lower floor slab 1 and the upper floor slab 2, and the steel stair crosses clearance of the polygonal holes 17 on the lower floor slab 1 and the upper floor slab 2, so that the attractiveness is improved; in addition, the hoisting safety is improved through the traction of the cross layer.
In this embodiment, in actual use, the lower floor slab 1, the upper floor slab 2, the middle floor slab 13, and the top floor slab 12 are also all connected to the shear wall.
In the embodiment, the first hoop 5-2, the second hoop 6-2, the third hoop 3-2 and the fourth hoop 4-2 are arranged and are respectively detachably mounted on the first column 5, the second column 6, the third column 3 and the fourth column 4, so that the problem of stress concentration in the hoisting process is effectively considered, and the hoisting has small influence on the floor slab and the column; in addition, the first manual hoist 5-4, the second manual hoist 6-4, the third manual hoist 3-4 and the fourth manual hoist 4-4 can be hung conveniently.
In this embodiment, the pulley support mechanism 18 is provided to facilitate the penetration of the first traction wire rope 5-1, the third traction wire rope 3-1 and the fourth traction wire rope 4-1, which are penetrated through the steel stair 7, when the first traction wire rope 5-1, the third traction wire rope 3-1 and the fourth traction wire rope 4-1 are contacted with the intermediate floor 13 in the hoisting process of the steel stair 7, so as to avoid the damage of the intermediate floor 13 caused in the traction process of the first traction wire rope 5-1, the third traction wire rope 3-1 and the fourth traction wire rope 4-1, and in addition, the traction of the traction wire ropes is facilitated through the fixed pulley 18-5, so that the labor intensity is reduced.
In this embodiment, the intermediate floor 13 is also provided with a polygonal opening 17.
In conclusion, the steel stair hoisting device is simple in structure and reasonable in design, the upper end and the lower end of the steel stair are dragged by the upper end traction mechanism and the lower end traction mechanism, the steel stair is hoisted by the main hoisting mechanism, the irregular holes in the floor slab are effectively adapted, the hoisting is convenient and efficient, and the hoisting safety is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a hoisting structure of cavity steel stair which characterized in that: the steel stair hoisting device comprises a steel stair (7) arranged between a lower floor slab (1) and an upper floor slab (2), a lower end traction mechanism for drawing the lower end of the steel stair (7), an upper end traction mechanism for drawing the upper end of the steel stair (7), and a main hoisting mechanism for hoisting the steel stair (7);
a first lower hoisting hole (7-1) and a second lower hoisting hole are symmetrically arranged on two sides of the lower end of the steel stair (7), a first upper hoisting hole (7-2) and a second upper hoisting hole are symmetrically arranged on two sides of the upper end of the steel stair (7), main hoisting holes (7-3) are symmetrically arranged at two sides of the middle part of the steel stair (7), a first traction steel wire rope (5-1) penetrates through the first lower hoisting hole (7-1), a second traction steel wire rope (6-1) is arranged in the second lower hoisting hole in a penetrating way, a third traction steel wire rope (3-1) is arranged in the first upper hoisting hole (7-2) in a penetrating way, a fourth traction steel wire rope (4-1) penetrates through the second upper hoisting hole, and main hoisting steel wires (11) penetrate through the two main hoisting holes (7-3);
the number of the lower end traction mechanisms is two, the two lower end traction mechanisms are respectively a first lower end traction mechanism and a second lower end traction mechanism, the number of the upper end traction mechanisms is two, the two upper end traction mechanisms are respectively a first upper end traction mechanism and a second upper end traction mechanism, the first traction steel wire rope (5-1) is connected with the first lower end traction mechanism, the second traction steel wire rope (6-1) is connected with the second lower end traction mechanism, the third traction steel wire rope (3-1) is connected with the first upper end traction mechanism, the fourth traction steel wire rope (4-1) is connected with the second lower end traction mechanism, and the main hoisting steel wire (11) is connected with the main hoisting mechanism.
2. The hoisting structure of the hollow steel stair according to claim 1, wherein: the first lower end traction mechanism comprises a first hoop (5-2) arranged on the first column (5), a first bolt (5-3) penetrating through the first hoop (5-2) and a first manual hoist (5-4) hooked on the first bolt (5-3), and the first manual hoist (5-4) is connected with a first traction steel wire rope (5-1);
the second lower end traction mechanism comprises a second hoop (6-2) arranged on the second column (6), a second bolt (6-3) penetrating through the second hoop (6-2) and a second manual hoist (6-4) hooked on the second bolt (6-3), and the second manual hoist (6-4) is connected with a second traction steel wire rope (6-1);
the first upper end traction mechanism comprises a third hoop (3-2) arranged on the third column (3), a third bolt (3-3) arranged in the third hoop (3-2) in a penetrating manner and a third manual hoist (3-4) hung on the third bolt (3-3), and the third manual hoist (3-4) is connected with a third traction steel wire rope (3-1);
the second upper end traction mechanism comprises a fourth hoop (4-2) arranged on the fourth column (4), a fourth bolt (4-3) arranged in the fourth hoop (4-2) in a penetrating mode and a fourth manual hoist (4-4) hung on the fourth bolt (4-3), and the fourth manual hoist (4-4) is connected with a fourth traction steel wire rope (4-1).
3. The hoisting structure of the hollow steel stair according to claim 1, wherein: the main hoisting mechanism comprises a first embedded part (12-1) and a second embedded part (12-2) which are arranged on a top floor plate (12), two I-shaped steels (15) connected between the first embedded part (12-1) and the second embedded part (12-2), a suspender (14) arranged between the two I-shaped steels (15) and an electric hoist (16) hung on the suspender (14), wherein the electric hoist (16) is connected with a main hoisting steel wire (11);
an upper rectangular hole is formed in the top floor (12), the first embedded part (12-1) and the second embedded part (12-2) are located on the inner side wall of the upper rectangular hole, and the I-shaped steel (15) and the hanger rod (14) are located in the upper rectangular hole.
4. The hoisting structure of the hollow steel stair according to claim 1, wherein: polygonal holes (17) are formed in the lower floor (1) and the upper floor (2), lower embedded parts (8-1) are arranged on the lower floor (1), upper embedded parts (8-2) are arranged on the inner side wall of the polygonal holes (17) of the upper floor (2), two connecting plates (8-3) are welded on the upper embedded parts (8-2), an upper end connecting part (9-2) of the steel stair (7) is located between the two connecting plates (8-3), the upper end connecting part (9-2) and the connecting plates (8-3) of the steel stair (7) are fixedly connected through high-strength bolts (10), and a lower end connecting part (9-1) of the steel stair (7) is welded with the lower embedded parts (8-1).
5. The hoisting structure of the hollow steel stair according to claim 1, wherein: a plurality of layers of middle floor slabs (13) are arranged between the top floor slab (12) and the upper floor slab (2), and the first column (5), the second column (6), the third column (3) and the fourth column (4) penetrate through the lower floor slab (1), the upper floor slab (2), the middle floor slab (13) and the top floor slab (12);
a pulley supporting mechanism (18) is arranged on the middle floor (13) positioned on the upper floor (2), the pulley supporting mechanism (18) comprises a middle embedded part (13-1) arranged on the middle floor (13), a bottom plate (18-1) arranged on the middle embedded part (13-1), an expansion link (18-2) arranged on the bottom plate (18-1) and a top plate (18-3) arranged at the top of the expansion link (18-2), a U-shaped mounting seat (18-4) arranged at the top of the top plate (18-3) and a fixed pulley (18-5) arranged on the U-shaped mounting seat (18-4), the first traction steel wire rope (5-1), the third traction steel wire rope (3-1) and the fourth traction steel wire rope (4-1) penetrate through the fixed pulley (18-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120510123.5U CN215331281U (en) | 2021-03-10 | 2021-03-10 | Hoisting structure of hollow steel stair |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120510123.5U CN215331281U (en) | 2021-03-10 | 2021-03-10 | Hoisting structure of hollow steel stair |
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| CN215331281U true CN215331281U (en) | 2021-12-28 |
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| CN202120510123.5U Active CN215331281U (en) | 2021-03-10 | 2021-03-10 | Hoisting structure of hollow steel stair |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116717061A (en) * | 2023-05-12 | 2023-09-08 | 中铁广州工程局集团有限公司 | An embedded rapid installation construction method for prefabricated steel structure stairs |
| CN117188780A (en) * | 2023-09-14 | 2023-12-08 | 广州大学 | Steel staircase hoisting method |
| CN118686397A (en) * | 2024-05-22 | 2024-09-24 | 中国建筑第二工程局有限公司 | A method for installing a steel ladder in a narrow space |
-
2021
- 2021-03-10 CN CN202120510123.5U patent/CN215331281U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116717061A (en) * | 2023-05-12 | 2023-09-08 | 中铁广州工程局集团有限公司 | An embedded rapid installation construction method for prefabricated steel structure stairs |
| CN116717061B (en) * | 2023-05-12 | 2025-05-13 | 中铁广州工程局集团有限公司 | Embedded rapid installation construction method for assembled steel structure stairway |
| CN117188780A (en) * | 2023-09-14 | 2023-12-08 | 广州大学 | Steel staircase hoisting method |
| CN118686397A (en) * | 2024-05-22 | 2024-09-24 | 中国建筑第二工程局有限公司 | A method for installing a steel ladder in a narrow space |
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