A ladder cage wall connecting piece and ladder cage for a steel pipe stand

Abstract

The utility model relates to engineering equipment field, concretely is a kind of ladder cage wall connecting piece and ladder cage for steel pipe stand, and the wall connecting piece includes hoop, basket bolt, connecting rod and square steel pipe;Rubber sheet is equipped in the inside of hoop, and hoop is tightly held in steel pipe stand by rubber sheet;Basket bolt includes screw rod at both ends;Connecting rod one end is hinged with hoop, and the other end connects the screw rod of basket bolt one end;Square steel pipe is set on the ladder cage stand of ladder cage, and square steel pipe is hinged with the screw rod of opposite connecting rod arrangement.This utility model fills the gap between hoop and steel pipe stand by closely adhering rubber sheet in hoop, so that the tightening force of hoop is evenly distributed in thin-walled steel pipe stand by rubber sheet, to avoid local deformation or damage of steel pipe stand, while the hoop is tightened, the rubber sheet is used to increase the friction force to fix the hoop, so that the wall connecting piece is stable, and the structural safety is improved;The length of connecting rod is adjusted by basket bolt, so that the connection between ladder cage and wall connecting piece is firm, and the stability of ladder cage is improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering equipment, and in particular to a ladder cage wall tie and a ladder cage for steel pipe columns. Background Technology

[0002] Ladder cages facilitate the movement of construction workers during bridge or building construction. They are easy to install and economical. The stability of the ladder cage is a key aspect of its installation. Installing wall ties between the ladder cage and the structure can improve its stability. Currently, most ladder cage wall ties involve fixing one end to the bridge's cylindrical pier with clamps or to non-cylindrical piers and structures with pre-embedded bolts, while the other end is fixed to the ladder cage via a fixing frame or welded steel pipe. The two ends are connected by adjustable screws, steel pipes, or cross members.

[0003] However, the existing ladder cage wall ties are difficult to apply to steel pipe columns because: when existing ladder cage wall ties are applied to steel pipe column structures, the steel pipe columns are thin-walled structures and are limited by processing errors, so the clamps cannot be completely tightly fitted to the steel pipe columns. This causes local stress to be generated at the bolt application points of the wall tie clamps, resulting in local deformation or damage to the steel pipe columns, which in turn affects the entire steel pipe column support system. Furthermore, the clamps and steel pipe columns are in steel-to-steel contact, with a low coefficient of friction, resulting in insufficient friction, an unstable connection, and the clamps are prone to loosening and falling off. Utility Model Content

[0004] The purpose of this utility model is to address the problem that existing ladder cage wall ties are difficult to apply to steel pipe columns, and to provide a ladder cage wall ties and a ladder cage for steel pipe columns.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] In a first aspect, this utility model provides a ladder cage wall-connecting component for steel pipe columns, including a clamp, a turnbuckle, a connecting rod, and a square steel pipe; the inner side of the clamp is fully covered with rubber sheets, and the clamp is used to tighten the clamp to the steel pipe column through the rubber sheets; the turnbuckle includes threaded rods at both ends; one end of the connecting rod is hinged to the clamp, and the other end is connected to the threaded rod at one end of the turnbuckle; the square steel pipe is sleeved on the ladder cage column, and the square steel pipe is hinged to the threaded rod opposite to the connecting rod.

[0007] The ladder cage wall tie for steel pipe columns described in this utility model uses a rubber sheet tightly attached inside the clamp to fill the gap between the clamp and the steel pipe column. This allows the clamping force of the clamp to be evenly distributed across the thin-walled steel pipe column through the rubber sheet, preventing local deformation or damage to the steel pipe column. Simultaneously, after the clamp is tightened, the rubber sheet increases the friction force to fix the clamp, making the wall tie stable and improving structural safety. The length of the connecting rod is adjusted using the turnbuckle, ensuring a firm connection between the ladder cage and the wall tie, thus improving the stability of the ladder cage.

[0008] As a preferred technical solution of this utility model, the clamp includes two channel steels bent into semicircles, and stiffening plates are connected to the ends of the channel steels. Matching first through holes are provided on the stiffening plates of the two channel steels facing each other, and bolts are fitted into the first through holes.

[0009] As a further preferred technical solution of this utility model, the channel steel includes a web and a flange. The web is arranged along the surface of the steel pipe column, and the flange is arranged perpendicular to the web. The rubber sheet is bonded to the inner side of the web.

[0010] As a further preferred technical solution of this utility model, one end of the connecting rod and the flange plate are provided with a matching second through hole, and the bolt is fitted into the second through hole.

[0011] As a further preferred technical solution of this utility model, the second through hole is provided in the middle of the flange plate.

[0012] As a further preferred technical solution of this utility model, after the two channel steels are fitted together, there is a gap between the opposite stiffening plates, and the gap is 3mm~7mm.

[0013] As a preferred technical solution of this utility model, the inner dimension of the square steel tube is 2mm~3mm larger than the diameter of the ladder cage column.

[0014] As a preferred technical solution of this utility model, the square steel tube and the corresponding lead screw are respectively provided with ear plates, the ear plates are provided with matching third through holes, and the third through holes are fitted with bolts.

[0015] As a preferred technical solution of this utility model, the lead screw is threaded with an anti-slip nut.

[0016] Secondly, this utility model also provides a ladder cage, including ladder cage columns and ladder cage wall ties for steel pipe columns as described in any of the above.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] This utility model discloses a ladder cage wall tie for steel pipe columns. By tightly attaching a rubber sheet inside the clamp to fill the gap between the clamp and the steel pipe column, the clamping force of the clamp is evenly distributed on the thin-walled steel pipe column through the rubber sheet, preventing local deformation or damage to the steel pipe column. At the same time, after the clamp is tightened, the rubber sheet increases the friction force to fix the clamp, making the wall tie stable and improving structural safety. The length of the connecting rod can be adjusted by the turnbuckle to ensure a firm connection between the ladder cage and the wall tie, improving the stability of the ladder cage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram (elevation) of the structure and use of the ladder cage wall tie for steel pipe columns.

[0020] Figure 2 This is a schematic diagram (plan view) of the clamp structure.

[0021] Figure 3 This is a schematic diagram (elevation) showing the connection between the connecting rod and the ladder cage.

[0022] The markings in the diagram are: 1-ladder cage, 11-ladder cage upright, 2-turn bolt, 21-threaded rod, 22-anti-slip nut, 3-connecting rod, 4-clamp, 41-channel steel, 42-stiffening plate, 5-steel pipe upright, 6-bolt, 7-rubber sheet, 8-square steel pipe. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0024] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0026] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0027] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0028] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0029] In related technologies, existing ladder cage wall ties are difficult to apply to steel pipe columns because: when existing ladder cage wall ties are applied to steel pipe column structures, the steel pipe columns are thin-walled structures, and due to processing errors, the clamps cannot be completely tightly fitted to the steel pipe columns. This causes localized stress at the bolt application points of the wall tie clamps on the steel pipe columns, leading to localized deformation or damage, which in turn affects the entire steel pipe column support system. Furthermore, the clamps and steel pipe columns are in steel-to-steel contact, resulting in a low coefficient of friction, insufficient friction, and an unstable connection, making the clamps prone to loosening and falling off. Therefore, the technical solution of this application was developed, which is described below in conjunction with... Figures 1 to 3 To elaborate.

[0030] Example 1

[0031] like Figures 1 to 3 As shown, the ladder cage wall tie for steel pipe columns described in this utility model includes a clamp 4, a rubber sheet 7, a bolt 6, a turnbuckle 2, a connecting rod 3, and a square steel pipe 8.

[0032] like Figure 2 As shown, the clamp 4 includes two channel steels 41 bent into semicircles. Stiffening plates 42 are welded to the ends of the channel steels 41. Matching first through holes are provided on the stiffening plates 42 opposite to the two channel steels 41. Bolts 6 are fitted into the first through holes. The strength of the channel steels 41 and the stiffening plates 42 is not less than Q235, and the bolts 6 are not less than grade 8.8. The channel steel 41 includes a web and flanges. The channel steel 41 is bent into an arc from the web. The web is set along the surface of the steel pipe column 5, and the width of the opening in the web is configured as the diameter of the steel pipe column 5 + 6mm~8mm. The flanges are perpendicular to the web, and the stiffening plates 42 are perpendicular to both the flanges and the web. The stiffening plate 42 is straight, with its long side flush with the outer end of the web plate; the diameter of the first through hole is the diameter of the bolt 6 + 2mm; after the two channel steels 41 are fitted together, there is a gap between the opposing stiffening plates 42 for applying pressure when the bolt 6 is tightened, and the gap is 3mm~7mm; a second through hole is provided in the middle of the flange plate, and the bolt 6 is fitted into the second through hole, the diameter of the second through hole being the diameter of the bolt 6 + 2mm; the inner side of the clamp 4 is fully connected with rubber sheets 7, specifically the inner side of the web plate is glued to the rubber sheets 7, the size of the rubber sheets 7 is the same as the size of the web plate, and the clamp 4 is used to tighten the steel pipe column 5 through the rubber sheets 7.

[0033] like Figure 2 and Figure 3 As shown, the turnbuckle 2 includes threaded rods 21 at both ends; the connecting rod 3 can be made of steel pipe, one end of the connecting rod 3 is provided with a second through hole that matches the flange plate, and the connecting rod 3 is rotatably connected to the clamp 4 in the horizontal plane through the bolt 6 corresponding to the second through hole; the other end of the connecting rod 3 is welded to the threaded rod 21 at one end of the turnbuckle 2.

[0034] like Figure 1 and Figure 3As shown, the square steel tube 8 is sleeved on the ladder cage column 11 of the ladder cage 1. The inner dimension of the square steel tube 8 is 2mm~3mm larger than the diameter of the ladder cage column 11. The square steel tube 8 is hinged to the threaded rod 21 opposite to the connecting rod 3. Specifically, the square steel tube 8 and the corresponding threaded rod 21 are respectively provided with horizontal ear plates. The square steel tube 8 is welded with a single ear plate, and the threaded rod 21 is welded with a double ear plate. The single ear plate is inserted into the middle of the double ear plates. The single ear plate and the double ear plates are provided with matching third through holes. The third through holes are fitted with bolts 6, so that the turnbuckle 2 and the square steel tube 8 can rotate freely in the horizontal plane. By inwardly rotating the turnbuckle 2, the connecting rod 3 corresponding to the threaded rod 21 and the square steel tube 8 corresponding to the threaded rod 21 are pulled closer together. After being pulled closer and in place, the anti-slip nuts 22 reserved on both sides of the threaded rod 21 at both ends of the turnbuckle 2 are tightened and fixed.

[0035] This embodiment describes a ladder cage wall tie for steel pipe columns. By tightly attaching a rubber sheet 7 inside the clamp 4 to fill the gap between the clamp 4 and the steel pipe column 5, the clamping force of the clamp 4 is evenly distributed on the thin-walled steel pipe column 5 through the rubber sheet 7, preventing local deformation or damage to the steel pipe column 5. At the same time, after the clamp 4 is tightened, the rubber sheet 7 increases the friction force to fix the clamp 4, making the wall tie stable and improving structural safety. The length of the connecting rod 3 is adjusted by the turnbuckle 2, making the connection between the ladder cage 1 and the wall tie firm and improving the stability of the ladder cage 1.

[0036] Example 2

[0037] like Figure 1 As shown, the ladder cage 1 of this utility model includes a ladder cage column 11 and a ladder cage wall connector for steel pipe columns as described in Embodiment 1.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ladder cage wall tie for steel pipe columns, characterized in that, include: The clamp (4) is covered with rubber sheets (7) on its inner side. The clamp (4) is used to tighten the steel pipe column (5) through the rubber sheets (7). Turnbuckle (2), including threaded rods (21) at both ends; The connecting rod (3) has one end hinged to the clamp (4) and the other end connected to the threaded rod (21) at one end of the turnbuckle (2); A square steel pipe (8) is sleeved on the ladder cage column (11) of the ladder cage (1), and the square steel pipe (8) is hinged to the lead screw (21) which is opposite to the connecting rod (3).

2. The ladder cage wall tie for steel pipe columns according to claim 1, characterized in that, The clamp (4) includes two channel steels (41) bent into semicircles. The ends of the channel steels (41) are connected to stiffening plates (42). The stiffening plates (42) opposite to the two channel steels (41) are provided with matching first through holes, and bolts (6) are fitted into the first through holes.

3. The ladder cage wall tie for steel pipe columns according to claim 2, characterized in that, The channel steel (41) includes a web and a flange. The web is arranged along the surface of the steel pipe column (5), and the flange is arranged perpendicular to the web. The rubber sheet (7) is bonded to the inner side of the web.

4. The ladder cage wall tie for steel pipe columns according to claim 3, characterized in that, One end of the connecting rod (3) and the flange plate are provided with a matching second through hole, and the second through hole is fitted with the bolt (6).

5. The ladder cage wall tie for steel pipe columns according to claim 4, characterized in that, The second through hole is located in the middle of the flange plate.

6. The ladder cage wall tie for steel pipe columns according to claim 2, characterized in that, After the two channel steels (41) are fitted together, there is a gap between the opposite stiffening plates (42), the gap being 3mm to 7mm.

7. The ladder cage wall tie for steel pipe columns according to claim 1, characterized in that, The inner dimensions of the square steel tube (8) are 2mm to 3mm larger than the diameter of the ladder cage column (11).

8. The ladder cage wall tie for steel pipe columns according to claim 1, characterized in that, The square steel tube (8) and the corresponding lead screw (21) are respectively provided with ear plates, and the ear plates are provided with matching third through holes, and the third through holes are fitted with bolts (6).

9. The ladder cage wall tie for steel pipe columns according to any one of claims 1-8, characterized in that, The lead screw (21) is threaded with an anti-slip nut (22).

10. A ladder cage (1), characterized in that, It includes a ladder cage column (11) and a ladder cage wall tie for a steel pipe column as described in any one of claims 1-9.

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