Movable corner device of pull rod type cantilever scaffold

Abstract

The utility model discloses a movable corner device of a pull rod type cantilever scaffold, which belongs to the technical field of scaffolds and comprises profile steel mounted on a structural beam through anchor bolts, a hinge rod is hinged to one end of the profile steel, a base is hinged to one end, far away from the profile steel, of the hinge rod, and the base is detachably connected to a concrete structure. An included angle is formed between the two hinge rods in the length direction, the ends, corresponding to the profile steel, of the two hinge rods are the ends with the minimum transverse distance, and the profile steel is driven by the adjusting unit to swing along the hinged position of the profile steel and the hinge rods so as to adjust the included angle between the length direction of the profile steel and the length direction of the hinge rods. The two hinge rods are arranged, and the included angle is formed between the two hinge rods, so that the load of the profile steel on the hinge rods can be dispersed by the two hinge rods, compared with the mode that one hinge rod is used for supporting the profile steel in the prior art, the influence of the load on the service life of the hinge rods is reduced, the supporting strength on the profile steel is improved, and the service life of the profile steel is prolonged. In addition, displacement of the section steel in the width direction can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of scaffolding technology, specifically to a tie-rod type movable corner device for cantilever scaffolding. Background Technology

[0002] Cantilever scaffolding refers to scaffolding whose structure is unloaded from rigid cantilever beams (frames) attached to the building structure. It is used for main structure or decoration work in building construction and for safety protection needs. Each section of scaffolding must not exceed 24 meters in height. The permissible erection height for a single cantilever scaffold is 20 meters. The building structure to which the cantilever scaffolding is attached must be a reinforced concrete or steel structure, and must not be attached to a brick-concrete or stone structure. The supporting structure of the cantilever scaffolding should be a cantilever beam or cantilever truss made of steel, and steel pipes are not permitted; its joints should be bolted or welded, and fasteners are not permitted. The fixing method to the building structure should be determined through design calculations. It is suitable for reinforced concrete and steel structures, high-rise or super high-rise buildings, for main structure or decoration work in building construction and for safety protection needs.

[0003] A search revealed Chinese patent number CN204343642U, which discloses a corner support frame for cantilever scaffolding. The support frame includes a support beam, a support rod, an end plate, a support seat, and a hinge support. The end plate has pre-drilled holes for installing expansion bolts. The end plate is connected to a shear wall via the expansion bolts. A support seat is fixedly connected to the end plate. The support seat is fixedly connected to one end of the support beam. A hinge support is installed under the other end of the support beam. The hinge support is connected to one end of the support rod. The other end of the support rod is connected to the hinge support via a pin. The hinge support is connected to the shear wall via expansion bolts.

[0004] The aforementioned cantilever scaffolding uses a support rod (referred to as a hinge rod in this application) to support the end of the steel section exposed in the concrete structure. This method results in a large load on the support rod, and the steel section is prone to shifting along its width, leading to poor installation stability of the steel section.

[0005] Based on this, this utility model designs a tie rod type movable corner device for cantilever scaffolding to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a tie rod type movable corner device for cantilever scaffolding, so as to solve the problem mentioned in the background art that the cantilever scaffolding uses a support rod (referred to as a hinge rod in this application) to support the end of the steel section exposed in the concrete structure. This method results in a large load on the support rod, and the steel section is prone to slippage along its width direction, resulting in poor installation stability of the steel section.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a tie-rod type movable corner device for cantilever scaffolding, comprising a steel section installed on a structural beam by anchor bolts, a hinge rod hinged to the end of the steel section away from the structural beam, a base hinged to the end of the hinge rod away from the steel section, the base being detachably connected to a concrete structure, two hinge rods having an included angle in their length directions, the two hinge rods having the smallest lateral distance between their respective ends corresponding to the ends of the steel section, the steel section being driven by an adjustment unit to swing along the hinge point with the hinge rod to adjust the included angle between the length direction of the steel section and the length direction of the hinge rod.

[0008] Preferably, the adjustment unit includes two connecting columns respectively hinged to the profile steel and two hinge rods, and an adjustment rod is connected to both connecting columns. The two ends of the adjustment rod in the length direction are respectively provided with a first threaded part and a second threaded part with opposite thread directions. The two connecting columns are respectively provided with threaded holes for the first threaded part and the second threaded part to be threaded together.

[0009] Preferably, a connecting rod is fixedly connected to both of the hinge rods, and the connecting post is rotatably sleeved on the connecting rod.

[0010] Preferably, the anchor bolt includes two vertical sections and one horizontal section. The two ends of the horizontal section are respectively fixed to the upper ends of the two vertical sections. The two vertical sections and the horizontal section together form a limiting space for the steel section to engage. The two vertical sections are pre-embedded on the structural beam. A limiting plate is fitted on the two vertical sections. The limiting plate has through holes for the vertical sections to pass through freely, and the limiting plate is driven to move up and down by a driving unit.

[0011] Preferably, the drive unit includes a threaded portion fixedly connected to the middle position of the horizontal section, a fastening bolt is vertically threaded through the threaded portion, a pressure block is fixedly connected to the lower end of the fastening bolt, and the pressure block abuts against the top surface of the limiting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting two hinge rods with an included angle, the load on the hinge rods from the steel profile can be distributed by the two hinge rods. Compared with the prior art that uses a single hinge rod to support the steel profile, this reduces the impact of the load on the service life of the hinge rod and increases the supporting force on the steel profile. In addition, it can reduce the width direction movement of the steel profile. By setting an adjustment unit, the included angle between the hinge rod and the steel profile can be adjusted, thereby adjusting the supporting angle of the hinge rod on the steel profile and adjusting the supporting force on the steel profile. By setting a drive unit, the limiting plate can be pressed against the steel profile, preventing gaps between the anchor bolt and the steel profile that would affect the installation stability of the steel profile. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the overall assembly of this utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure viewed from below.

[0016] Figure 3 for Figure 1 A frontal view of the three-dimensional structure.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1-Base, 2-Connecting rod, 3-Hinge rod, 4-First threaded part, 5-Second threaded part, 6-Connecting column, 7-Steel section, 8-Pressure block, 9-Limiting plate, 10-Fastening bolt, 11-Threaded part, 12-Horizontal section, 13-Vertical section. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3This utility model provides a technical solution: a tie-rod type movable corner device for cantilever scaffolding, comprising a steel section 7 installed on a structural beam by anchor bolts. The anchor bolts include two vertical sections 13 and one horizontal section 12. The two ends of the horizontal section 12 are respectively fixed to the upper ends of the two vertical sections 13. The two vertical sections 13 and the horizontal section 12 together form a limiting space for the steel section 7 to engage. The two vertical sections 13 are pre-embedded in the structural beam. A limiting plate 9 is fitted onto both vertical sections 13. The limiting plate 9 has through holes for the vertical sections 13 to pass through freely, and the limiting plate 9 is driven up and down by a driving unit. The driving unit includes components fixed in the horizontal section 12. A threaded part 11 is located at the anchor bolt position. A fastening bolt 10 is threaded vertically through the threaded part 11. A pressure block 8 is fixed to the lower end of the fastening bolt 10. The pressure block 8 abuts against the top surface of the limiting plate 9. By rotating the fastening bolt 10, the fastening bolt 10 drives the pressure block 8 to move downward, thereby pressing the pressure block 8 against the limiting plate 9. The limiting plate 9 presses against the top surface of the steel section 7, thereby tightening the steel section 7 and preventing gaps between the anchor bolt and the steel section 7 from affecting the stability of the steel section 7. A hinge rod 3 is hinged to the end of the steel section 7 away from the structural beam. A base 1 is hinged to the end of the hinge rod 3 away from the steel section 7. The base 1 is detachably connected to the concrete structure. There are two hinge rods 3. The two sections have an angle along their lengths, with one end of the corresponding steel section 7 being the end with the minimum lateral distance between them. The steel section 7 is driven by the adjusting unit to swing along the hinge point with the hinge rod 3 to adjust the angle between the length direction of the steel section 7 and the length direction of the hinge rod 3. The adjusting unit includes two connecting posts 6 respectively hinged to the steel section 7 and the two hinge rods 3. Specifically, a connecting rod 2 is fixedly connected to both hinge rods 3, and the connecting post 6 is rotatably sleeved on the connecting rod 2, so that the connecting post 6 is hinged to both hinge rods 3. An adjusting rod is connected to both connecting posts 6. The two ends of the adjusting rod along its length are respectively provided with a first threaded part 4 and a second threaded part 5 with opposite thread directions. The connecting post 6 is provided with threaded holes for the first threaded part 4 and the second threaded part 5 to be threaded together. When adjusting the angle between the steel profile 7 and the hinge rod 3, the adjusting rod is first rotated using an external tool. The first threaded part 4 and the second threaded part 5 on the adjusting rod are threaded together with the two connecting posts 6 respectively. Since the threads of the first threaded part 4 and the second threaded part 5 are in opposite directions, the two connecting posts 6 will move relative to each other, thereby driving the hinge rod 3 to rotate along the hinge point with the steel profile 7 to adjust the angle between the steel profile 7 and the hinge rod 3. In this way, by adjusting the angle between the hinge rod 3 and the steel profile 7, the support angle of the hinge rod 3 on the steel profile 7 is adjusted, thereby increasing the support force on the steel profile 7.

[0021] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tie-rod type movable corner device for cantilever scaffolding, comprising a steel section (7) installed on a structural beam by anchor bolts, wherein a hinge rod (3) is hinged to one end of the steel section (7) away from the structural beam, and a base (1) is hinged to one end of the hinge rod (3) away from the steel section (7), wherein the base (1) is detachably connected to a concrete structure, characterized in that, The hinge rod (3) is provided in two parts and the two hinge rods (3) have an angle in the length direction. The two parts correspond to the end of the steel section (7) at which the lateral distance between them is the smallest. The steel section (7) is driven by the adjustment unit to swing along the hinge point with the hinge rod (3) to adjust the angle between the length direction of the steel section (7) and the length direction of the hinge rod (3).

2. The tie-rod type cantilever scaffold movable corner device according to claim 1, characterized in that, The adjustment unit includes two connecting posts (6) respectively hinged to the steel profile (7) and two hinge rods (3). An adjustment rod is connected to both connecting posts (6). The two ends of the adjustment rod in the length direction are respectively provided with a first threaded part (4) and a second threaded part (5) with opposite thread directions. The two connecting posts (6) are respectively provided with threaded holes for the first threaded part (4) and the second threaded part (5) to be threaded together.

3. The tie-rod type movable corner device for cantilever scaffolding according to claim 2, characterized in that, A connecting rod (2) is fixedly connected to both of the hinge rods (3), and the connecting post (6) is rotatably sleeved on the connecting rod (2).

4. The tie-rod type movable corner device for cantilever scaffolding according to claim 1, characterized in that, The anchor bolt includes two vertical sections (13) and one horizontal section (12). The two ends of the horizontal section (12) are fixed to the upper ends of the two vertical sections (13). The two vertical sections (13) and the horizontal section (12) together form a limiting space for the steel section (7) to engage. The two vertical sections (13) are pre-embedded on the structural beam. A limiting plate (9) is fitted on both vertical sections (13). The limiting plate (9) has a through hole for the vertical sections (13) to pass through freely. The limiting plate (9) is driven to move up and down by a driving unit.

5. A tie-rod type movable corner device for cantilever scaffolding according to claim 4, characterized in that, The drive unit includes a threaded part (11) fixed in the middle of the horizontal section (12). A fastening bolt (10) is vertically threaded through the threaded part (11). A pressure block (8) is fixed to the lower end of the fastening bolt (10). The pressure block (8) abuts against the top surface of the limiting plate (9).

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