A shaft pre-embedded support scaffolding component

By using pre-embedded support scaffolding components in the shaft, the problems of low turnover efficiency and insufficient safety performance of elevator shaft scaffolding are solved, achieving efficient and economical construction and resource utilization, and it is suitable for the erection of elevator shafts of different sizes.

CN224281937UActive Publication Date: 2026-05-26ZHEJIANG YIJIAN CONSTR GROUP
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YIJIAN CONSTR GROUP
Filing Date
2025-04-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing elevator shaft scaffolding suffers from problems such as low turnover efficiency, insufficient safety performance, complex construction, and inapplicability to different elevator shaft sizes during construction.

Method used

The system adopts a shaft-embedded support scaffolding structure, with angle steel support components fixed to the inner wall of the elevator shaft by bolts. I-beams are vertically embedded in the angle steel support components and connected by spot welding to form a stable support structure, which is suitable for the erection of elevator shafts of different sizes.

Benefits of technology

It improves construction efficiency and safety, reduces construction costs, enables efficient turnover of components and rational utilization of resources, and is suitable for repeated use in different projects.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224281937U_ABST
    Figure CN224281937U_ABST
Patent Text Reader

Abstract

This utility model discloses a shaft pre-embedded support scaffolding component, the structure of which includes: bolts, angle steel support components, and I-beams. The bolts transversely penetrate the upper middle and lower left and right sides of the angle steel support components and are spaced together with the I-beams. The I-beams are vertically embedded inside the angle steel support components and their bottoms overlap with those of the angle steel support components. This utility model further improves the process of erecting scaffolding using segmented I-beams by further improving the shaft pre-embedded scaffolding component. It can be used for different elevator shaft sizes, and is fixed to the inner wall of the elevator shaft with pre-embedded bolts. It is easy to assemble and disassemble on site and can be reused in different projects. It is low in cost, highly practical, and has a high assembly rate. It also features convenient construction, easy assembly and disassembly, fast construction speed, shortened construction cycle, high efficiency and economy, convenient turnover, safety and reliability, and green environmental protection.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of scaffolding components, specifically a shaft pre-embedded support scaffolding component. Background Technology

[0002] Elevator shaft scaffolding is frequently used in building construction projects. It plays a vital role in safety protection during construction. However, it is often overlooked in ordinary building construction due to the confined space and the presence of safety doors. There are various existing methods for erecting elevator shafts, including the integral platform lifting method, the pole-mounted method, and the segmented I-beam method. The integral lifting method requires matching the clear dimensions of the elevator shaft and has low turnover efficiency when dealing with elevator shafts of different sizes. The pole-mounted method is prone to height restrictions, and heights exceeding 50m require expert review, which raises concerns about the safety performance of high-rise buildings. The segmented I-beam method is simple to construct, but it often requires penetrating the shear wall of the elevator shaft, which is not conducive to subsequent masonry construction and leaves potential quality hazards.

[0003] To address this common problem, the process of erecting scaffolding using segmented I-beams was improved, and a component for erecting I-beams on the inner wall of elevator shafts was developed, achieving the effects of safety, reliability, high turnover efficiency, and strong applicability.

[0004] This component can be used for different elevator shaft sizes. It is fixed to the inner wall of the elevator shaft with pre-embedded bolts. It is easy to install and disassemble on site and can be used in different projects. It is low in cost, highly practical and has a high assembly rate. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a shaft pre-embedded support scaffolding component.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a shaft pre-embedded support scaffolding component, the structure of which includes: bolts, angle steel support components, and I-beams. The bolts transversely penetrate the upper middle and lower left and right surface parts of the angle steel support components and are spaced together with the I-beams. The I-beams are vertically embedded inside the angle steel support components and overlap with them at their bottoms.

[0007] Furthermore, the angle steel support component is equipped with a gasket, which is bolted to the upper left and right sides of the end plate. A triangular reinforcing plate is welded to the center of the lower surface of the end plate. The top of the triangular reinforcing plate is welded to the bottom of the channel steel. A locking groove is opened at the connection between the end plate and the gasket to allow the bolt to pass through.

[0008] Furthermore, the channel steel of the angle steel support component is fixed by bolts and matching nuts, and the end plate, triangular reinforcing plate and channel steel can be positioned on the structural beam. Then, I-beams of suitable size are placed directly in the channel steel and then connected by spot welding.

[0009] Furthermore, the bolt is an 8.8 grade M20 bolt, which is then semi-embedded through the end cap plate and tightened onto the structural beam using a matching nut. The bolt is at least 150mm from the bottom of the structural beam, and the bolt thread protrudes from the end face of the nut for at least 3 threads and at least 10mm.

[0010] Furthermore, the end plate is 12mm thick and made of Q235 steel, with dimensions of 200×160 (h×b). It is cut using a plasma cutting machine according to the dimensions marked in the component dimension drawing. The channel steel is model 14a and has a length of 160mm. The triangular reinforcing plate is 10mm thick and has dimensions of 50mm×70mm (triangular straight edge). Then, it is fixedly welded to the end plate by welding.

[0011] Furthermore, the gasket is a 60×60×6mm anti-slip gasket product, which uses a 20mm electric wrench to fix the angle steel support component 2 to the concrete wall, with the bolt threads protruding from the nut end face for a length of not less than 3 threads and not less than 10mm. Beneficial effects

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model further improves the overall process of using segmented I-beam scaffolding by pre-embedded scaffolding components in the shaft. It can be used for different elevator shaft sizes, and can be fixed to the inner wall of the elevator shaft with pre-embedded bolts. It is easy to assemble and disassemble on site and can be used in different projects. It is low in cost, highly practical and has a high assembly rate, and has the following characteristics.

[0014] Convenient construction and easy assembly and disassembly: The angle steel support components are fixed to the inner wall of the elevator shaft with bolts, and the I-beams are erected on the supports to build scaffolding. Compared with the traditional erection method, it saves time and effort. For elevator shafts of different sizes, it can be used simply by changing the length of the erected I-beams.

[0015] Fast construction speed and shortened construction cycle: the fixing of the angle steel support components of an elevator shaft takes no more than 5 minutes, the angle steel support can be set every 6 floors, and the scaffolding can be raised directly on the intermediate floors. There is no interruption time for the formwork of the elevator shaft wall, thereby improving the construction progress of each floor.

[0016] High efficiency, economy and convenient turnover: Compared with the traditional lifting operation platform, there is no need to consider the size of the elevator shaft. This component can be used in ordinary residential projects. The angle steel support component is easy to dismantle and recycle. There is no depreciation or loss during use. The more times it is reused, the higher the economic benefits.

[0017] Safe, reliable, and environmentally friendly: The components are mainly composed of 12mm thick Q235 steel end plates and 14a type channel steel. Calculations show that the strength of the components meets the requirements. The steel plates, channel steel, and other components used for the angle steel supports can make full use of existing old and recycled materials on the construction site, making reasonable use of secondary processed materials and saving resources. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a shaft pre-embedded support scaffolding component according to the present invention.

[0019] Figure 2 This is a schematic diagram of the semi-embedded bolt positioning structure for the elevator shaft scaffolding of this utility model.

[0020] Figure 3 This is a cross-sectional structural schematic diagram of the improved angle steel support component of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the improved angle steel support component of this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the angle steel support component and the bolt fixing of this utility model.

[0023] Figure 6 This document lists the main construction materials for a pre-embedded support scaffolding component for a shaft, as per this utility model.

[0024] Figure 7 This is a list of the main construction tools and equipment for a pre-embedded support scaffolding component for a well shaft, as described in this utility model.

[0025] In the diagram: Bolt-1, Angle steel support component-2, I-beam-3;

[0026] Gasket-21, End plate-22, Triangular reinforcing plate-23, Channel steel-24, Locking groove-25. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example

[0029] like Figures 1-7 As shown, this utility model provides a shaft pre-embedded support scaffolding component.

[0030] Its structure includes: bolt 1, angle steel support component 2, and I-beam 3. The bolt 1 passes through the upper middle and left and right sides of the surface of the angle steel support component 2 and is spaced together with the I-beam 3. The I-beam 3 is vertically embedded in the angle steel support component 2 and its bottom overlaps with the support component 2.

[0031] The angle steel support component 2 is provided with a gasket 21. The gasket 21 is installed on the upper left and right sides of the end plate 22 by bolts 1. A triangular reinforcing plate 23 is welded to the center of the lower surface of the end plate 22. The top of the triangular reinforcing plate 23 is welded to the bottom of the channel steel 24. A locking groove 25 is opened at the connection between the end plate 22 and the gasket 21 to allow the bolt 1 to pass through.

[0032] In this process, the channel steel 24 of the angle steel support component 2 is passed through by bolts 1 and matching nuts to fix the gasket 21. At the same time, the end plate 22, the triangular reinforcing plate 23, and the channel steel 24 can be positioned on the structural beam. Then, the I-beam 3 of suitable size is directly placed in the channel steel 24 and then connected by spot welding.

[0033] The bolt 1 is an 8.8 grade M20 bolt, which is then semi-embedded through the end cap plate 22 and tightened onto the structural beam using a matching nut. The distance between the bolt 1 and the bottom of the structural beam is not less than 150mm, and the length of the bolt thread protruding from the end face of the nut is not less than 3 threads and not less than 10mm.

[0034] The end cap plate 22 is 12mm thick and made of Q235 steel, with dimensions of 200×160 (h×b). It is cut using a plasma cutting machine according to the dimensions marked in the component dimension drawing. The channel steel 24 is model 14a and has a length of 160mm. The triangular reinforcing plate 23 is 10mm thick and has dimensions of 50mm×70mm (triangular straight edge). Then, it is fixedly welded to the end cap plate 22 by welding.

[0035] The gasket 21 is a 60×60×6mm anti-slip gasket product. The angle steel support component 2 is fixed to the concrete wall using a 20mm electric wrench. The length of the bolt thread protruding from the end face of the nut is not less than 3 threads and not less than 10mm.

[0036] The working principle of this utility model is explained below: The shaft pre-embedded support scaffolding component is suitable for the erection of scaffolding in elevator shafts and light wells in all ordinary building construction projects, especially for high-rise and super high-rise building construction projects that require scaffolding to be erected in sections. It fixes the self-made angle steel support component to the shear wall of the elevator shaft through pre-embedded bolts 1, and then supports the I-beam 3 with its own rigidity and strength before erecting the scaffolding. It improves the traditional frame structure with one end fixed and the other end cantilevered, and improves it to a form with both ends supported. The I-beam 3 is erected every 6 floors to form a support platform for the scaffolding erection. Then, the end plate 22 of the angle steel support component 2 can be locked through the locking groove 25 so that the bolt 1 can pass through. Then, the washer 21 is embedded, so that the matching bolt can be inserted. Once the cap is locked, assembly is complete. Then, the triangular reinforcing plate 23 of the end plate 22 supports and welds the bottom of the channel steel 24, ensuring that the channel steel 24 can be welded to the end plate 22 in a stable vertical state, allowing the I-beam 3 to be embedded vertically. Then, the I-beam 3 and the channel steel 24 are welded together using relevant welding rods to prevent the I-beam 3 from tipping over. Then, scaffolding uprights are installed on the I-beam 3 in the same way as cantilever scaffolding. Ordinary steel pipes or disc-lock uprights are used, and upright positioning parts are used to fix the uprights to the I-beam 3. The measures for scaffolding erection, such as wall ties and footboards, should meet the relevant scaffolding specifications. Finally, after the scaffolding is erected, the supervisor should be organized to inspect and accept it. Only after the inspection is passed and an acceptance sign is hung can it be used. Acceptance should comply with the technical specifications such as "General Specification for Construction Scaffolding" GB55023-2022 and "Safety Technical Specification for Tie-rod Cantilever Scaffolding in Building Construction" DBJ33 / T1321-2024.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A shaft pre-embedded support scaffolding component, the structure of which includes: Bolt (1), angle steel support member (2), and I-beam (3), wherein the bolt (1) transversely penetrates the upper middle and left and right sides of the surface of the angle steel support member (2) and is spaced to fit with the I-beam (3), and the I-beam (3) is vertically embedded inside the angle steel support member (2) and overlaps with it at the bottom, characterized in that: The angle steel support component (2) is provided with a gasket (21). The gasket (21) is installed on the upper left and right sides of the end plate (22) by bolts (1). A triangular reinforcing plate (23) is welded to the center of the lower surface of the end plate (22). The top of the triangular reinforcing plate (23) is welded to the bottom of the channel steel (24). A locking groove (25) is opened at the connection between the end plate (22) and the gasket (21) to allow the bolt (1) to pass through.

2. The shaft pre-embedded support scaffolding component according to claim 1, characterized in that: By using bolts (1) and matching nuts, the channel steel (24) of the angle steel support member (2) is passed through to fix the gasket (21). At the same time, the end plate (22), the triangular reinforcing plate (23), and the channel steel (24) can be positioned on the structural beam. Then, the I-beam (3) of the appropriate size is directly placed in the channel steel (24) and then spot welded together.

3. The shaft pre-embedded support scaffolding component according to claim 1, characterized in that: The bolt (1) is an 8.8 grade M20 type. It is then semi-embedded and passed through the end plate (22). It is then tightened onto the structural beam with the matching nut. The distance between the bolt (1) and the bottom of the structural beam is not less than 150mm. The bolt thread protruding from the end face of the nut is not less than 3 threads and not less than 10mm.

4. A shaft pre-embedded support scaffolding component according to claim 1, characterized in that: The end plate (22) is 12mm thick and made of Q235 steel, with a size of 200×160. It is cut by plasma cutting machine according to the dimensions marked in the component size drawing. The channel steel (24) is model 14a and has a length of 160mm. The triangular reinforcing plate (23) is 10mm thick and has a size of 50mm×70mm. Then it is fixedly welded to the end plate (22) by welding.

5. A shaft pre-embedded support scaffolding component according to claim 1, characterized in that: The gasket (21) is a 60×60×6mm anti-slip gasket product. It uses a 20 electric wrench to fix the angle steel support component (2) to the concrete wall. The bolt thread protruding from the end face of the nut is not less than 3 threads and not less than 10mm.