CN222989661U - A device for removing temporary steel pipe columns under the cover of a semi-covered station - Google Patents
A device for removing temporary steel pipe columns under the cover of a semi-covered station Download PDFInfo
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- CN222989661U CN222989661U CN202422347504.2U CN202422347504U CN222989661U CN 222989661 U CN222989661 U CN 222989661U CN 202422347504 U CN202422347504 U CN 202422347504U CN 222989661 U CN222989661 U CN 222989661U
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- steel pipe
- pipe column
- electric hoist
- wire rope
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Abstract
The utility model discloses a dismantling device for a temporary steel pipe column at the lower part of a cover plate of a semi-cover excavation station, which comprises an upper lifting lug arranged on a top plate or a middle plate at the top of the steel pipe column, wherein the upper lifting lug is connected with a first U-shaped clamping ring, the first U-shaped clamping ring is connected with a steel wire rope extending out of the steel pipe column, the bottom end of the steel wire rope is connected with an electric hoist, an upper lifting hook of the electric hoist is connected with the steel wire rope, a fixed pulley is arranged at the top of the steel pipe column, a coir rope is connected between the fixed pulley and the upper lifting hook of the electric hoist, and the 1/3 height position at the upper part of the steel pipe column is connected with a lower lifting hook of the electric hoist. The utility model has the advantages of simple structure, convenient use, high safety and convenient control of the falling direction.
Description
Technical Field
The utility model relates to the technical field of railway station construction, in particular to a dismantling device for temporary steel pipe columns at the lower part of a cover plate of a half-cover excavation station.
Background
Along with the rapid development of urban rail transit, more and more subway stations are constructed by adopting a half-cover excavation method, the half-cover excavation station generally adopts a temporary cover plate, the lower part of the half-cover excavation station adopts a temporary steel pipe column for supporting, and after the station construction is completed, the cover plate is removed first and then the temporary steel pipe column is cut off and lifted out.
However, some stations are completed and then shield construction is performed, and the temporary cover plate cannot be removed before shield tunneling is completed, so that the removal of the temporary steel pipe column becomes a difficult problem. Because the cover plate exists, the steel pipe column can not be directly segmented and lifted out from the top, and the middle plate is thinner and can not bear the loads of a crane, a digger and the like, the steel pipe column can not be lifted by adopting the machinery. The steel pipe column can not be directly pushed down by adopting a machine after being cut off, even if a large amount of shockproof buffer materials (such as rubber tires and the like) are paved on the middle plate, the impact force caused by the dumping of the shock materials can still possibly influence the engineering quality, the dumping direction of the steel pipe column is not easy to control, and safety accidents can easily occur.
Therefore, a dismounting device for the temporary steel pipe column at the lower part of the cover plate of the half-cover excavation station is needed.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a dismantling device for a temporary steel pipe column at the lower part of a cover plate of a half-cover excavation station, so as to solve the problem in the background technology.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows.
The dismantling device for the temporary steel pipe column at the lower part of the cover plate of the semi-cover excavation station comprises an upper lifting lug arranged on a top plate or a middle plate of the steel pipe column, a first U-shaped clamping ring is connected to the upper lifting lug, a steel wire rope extending out of the steel pipe column is connected to the first U-shaped clamping ring, an electric hoist is connected to the bottom end of the steel wire rope, the electric hoist comprises an upper lifting hook and a lower lifting hook, the upper lifting hook of the electric hoist is connected with the steel wire rope, a fixed pulley is arranged at the top of the steel pipe column, a palm rope is connected between the fixed pulley and the upper lifting hook of the electric hoist, and the 1/3 height position of the upper part of the steel pipe column is connected with the lower lifting hook of the electric hoist.
Further optimizing the technical scheme, the steel wire rope is double-rope.
Further optimizing technical scheme, go up the lug, lower lug is the steel sheet.
Further optimizing technical scheme, steel-pipe column upper portion 1/3 high position welding has lower lug, is connected with the second U type snap ring on the lower lug, and the second U type snap ring is connected with electric block's lower lifting hook.
According to the technical scheme, a 75X 100mm square hole for hanging a fixed pulley is cut at the top of the steel pipe column.
By adopting the technical scheme, the utility model has the following technical progress.
According to the dismantling device for the temporary steel pipe column at the lower part of the cover plate of the semi-cover excavation station, the lifting lug, the first U-shaped clamping ring and the steel wire rope are installed on the top plate or the middle plate at the upper part of the steel pipe column to be dismantled as hanging points, the fixed pulleys hung on the outer wall of the steel pipe column are used for lifting the electric hoist, the upper hanging hooks of the electric hoist are manually hung on the steel wire rope, then the lower hanging hooks of the electric hoist are hung at the position 1/3 of the height of the upper part of the steel pipe column and are tensioned, the electric hoist is used for slowly placing the steel pipe column onto the plate after the steel pipe column is cut, and therefore the dismantling work of the temporary steel pipe column of the subway semi-cover excavation station is guaranteed under the condition that the cover excavation is not dismantled. The utility model has the advantages of simple structure, convenient use, high safety and convenient control of the falling direction.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the present utility model in use;
The electric hoist comprises a first U-shaped clamping ring, a second U-shaped clamping ring, a first lifting lug, a second lifting lug, a steel wire rope, a fixed pulley, an electric hoist, a first lifting hook, a second lifting hook, a lifting hook and a steel pipe column.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the specific embodiments.
The utility model provides a half lid digs device of demolishing of interim steel-pipe column in station apron lower part, combines the fig. 1 to 2 to show, includes lug 1, first U type snap ring 2, wire rope 3, fixed pulley 4, electric block 5, coir rope 6, steel-pipe column 7, lower lug 8, second U type snap ring 9. The electric hoist 5 includes an upper hook 51 and a lower hook 52.
The upper lifting lug 1 is a steel plate with the thickness of 150 multiplied by 200 multiplied by 10mm, and the upper lifting lug 1 is welded on a top plate or a middle plate at the top of the steel pipe column 7. The upper lifting lug 1 is connected with a first U-shaped clamping ring 2, and the diameter of the first U-shaped clamping ring 2 is 20mm. The first U-shaped clamping ring 2 is connected with a steel wire rope 3 extending out of the steel pipe column 7, the diameter of the steel wire rope 3 is 26mm, the length of the steel wire rope 3 is 2000mm, and the steel wire rope 3 is double-rope. If the steel pipe column 7 and the cover plate are provided with reserved holes, the steel wire rope 3 directly passes through the cover plate from the reserved holes, and if the reserved holes are not provided, holes can be cut in the steel pipe column 7, and the steel wire rope 3 passes through the cover plate from the inside of the steel pipe column 7.
The bottom of wire rope 3 is connected with electric block 5, includes lifting hook 51 and lower lifting hook 52 in the electric block 5, and the last lifting hook 51 of electric block 5 is connected with wire rope 3.
The top of the steel pipe column 7 is cut with a square hole of 75 multiplied by 100mm, which is used for hanging the fixed pulley 4, and a coir rope 6 is connected between the fixed pulley 4 and an upper lifting hook 51 of the electric hoist 5.
The lower lifting lug 8 is welded at the 1/3 height position of the upper part of the steel pipe column 7, the lower lifting lug 8 is made of a steel plate, the lower lifting lug 8 is connected with a second U-shaped clamping ring 9, and the second U-shaped clamping ring 9 is connected with a lower lifting hook 52 of the electric hoist 5.
When the steel pipe column is actually used, a 150 multiplied by 200 multiplied by 10mm steel plate is welded on a top plate or a middle plate on the upper part of a steel pipe column 7 to be dismantled to serve as an upper lifting lug 1, a first U-shaped clamping ring 2 with the diameter of 20mm is welded on the upper lifting lug 1, and a steel wire rope 3 with the diameter of 26mm and the length of 2000mm is installed on the first U-shaped clamping ring 2 of the lifting lug to serve as a lifting point.
When the reserved hole is arranged at the intersection of the steel pipe column 7 and the plate, the steel wire rope 3 directly passes through the cover plate downwards from the hole, when the reserved hole is not arranged, a hole is cut on the steel pipe column 7, the steel wire rope 3 passes through the cover plate downwards from the inside of the steel pipe column 7, and the steel wire rope 3 extends out of the steel pipe column 7 through the hole at the lower part.
Cutting a square hole with the diameter of 75 multiplied by 100mm below the cutting surface to be cut of the steel pipe column, hanging a fixed pulley 4 in the square hole, and penetrating a coir rope 6 between the fixed pulley 4 and an upper lifting hook 51 of the electric hoist 5.
And a lower lifting lug 8 is welded at the 1/3 height position of the upper part of the steel pipe column, and a second U-shaped clamping ring 9 is connected to the lower lifting lug 8. The 10t electric hoist 5 is lifted to a position close to the steel wire rope 3 from the ground through the fixed pulley 4, then the lower lifting hook 52 of the electric hoist 5 is hung on the second U-shaped clamping ring 9, and the upper lifting hook 51 of the electric hoist 5 is connected with the steel wire rope 3 and is tensioned.
When the steel pipe column is cut, the upper cutting surface is positioned at the top of the steel pipe column and is flush with the bottom of the plate, and the lower cutting surface is positioned at the bottom of the steel pipe column and forms an angle of 0-45 degrees with the horizontal plane. After cutting, the round part of the inclined plane of the angle is pried off by a crow bar to be taken out, so that the bottom of the steel pipe column 7 is suspended. Then start electric block, slowly lay steel-pipe column 7 on medium plate (or bottom plate), use small-size fork truck to shift steel-pipe column 7 to hanging the export and hang out the station at last, realized the safety of apron lower interim steel-pipe column 7 and demolishd.
Claims (5)
1. The dismantling device for the temporary steel pipe column at the lower part of the cover plate of the semi-cover excavation station is characterized by comprising an upper lifting lug (1) arranged on a top plate or a middle plate at the top of a steel pipe column (7), wherein a first U-shaped clamping ring (2) is connected to the upper lifting lug (1), a steel wire rope (3) extending out of the steel pipe column (7) is connected to the first U-shaped clamping ring (2), an electric hoist (5) is connected to the bottom end of the steel wire rope (3), the electric hoist (5) comprises an upper lifting hook (51) and a lower lifting hook (52), the upper lifting hook (51) of the electric hoist (5) is connected with the steel wire rope (3), a fixed pulley (4) is arranged at the top of the steel pipe column (7), a coir rope (6) is connected between the fixed pulley (4) and the upper lifting hook (51) of the electric hoist (5), and the height position of 1/3 at the upper part of the steel pipe column (7) is connected with the lower lifting hook (52) of the electric hoist (5).
2. The dismantling device for the temporary steel pipe column at the lower part of the cover plate of the half-cover excavation station is characterized in that the steel wire rope (3) is a double rope.
3. The dismantling device for the temporary steel pipe column at the lower part of the cover plate of the half-cover excavation station is characterized in that the upper lifting lug (1) and the lower lifting lug (8) are both steel plates.
4. The dismantling device for the temporary steel pipe column at the lower part of the cover plate of the half-cover excavation station is characterized in that a lower lifting lug (8) is welded at the 1/3 height position of the upper part of the steel pipe column (7), a second U-shaped clamping ring (9) is connected to the lower lifting lug (8), and the second U-shaped clamping ring (9) is connected with a lower lifting hook (52) of the electric hoist (5).
5. The dismantling device for the temporary steel pipe column at the lower part of the cover plate of the half-cover excavation station is characterized in that a 75X 100mm square hole for hanging a fixed pulley (4) is cut at the top of the steel pipe column (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422347504.2U CN222989661U (en) | 2024-09-26 | 2024-09-26 | A device for removing temporary steel pipe columns under the cover of a semi-covered station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422347504.2U CN222989661U (en) | 2024-09-26 | 2024-09-26 | A device for removing temporary steel pipe columns under the cover of a semi-covered station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222989661U true CN222989661U (en) | 2025-06-17 |
Family
ID=95990705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422347504.2U Active CN222989661U (en) | 2024-09-26 | 2024-09-26 | A device for removing temporary steel pipe columns under the cover of a semi-covered station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222989661U (en) |
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2024
- 2024-09-26 CN CN202422347504.2U patent/CN222989661U/en active Active
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