A spiral power assisting device for installing top and bottom supports of a disc buckle rack
By employing a lever-assisted device during the installation of the top and bottom supports of the disc-lock frame, and utilizing a simple structure made of steel bars and pipes, the problem of laborious and time-consuming installation of the top and bottom supports of the disc-lock frame is solved, achieving efficient, safe, and low-cost assembly and disassembly operations. It is applicable to various specifications of disc-lock frames.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA MCC5 GROUP CORP LTD
- Filing Date
- 2026-03-31
- Publication Date
- 2026-05-29
AI Technical Summary
The installation and dismantling of existing disc-lock scaffold top and bottom supports are laborious and inefficient. Existing auxiliary devices are complex in structure, rely on electric equipment, and have poor on-site applicability, making it difficult to meet the needs of efficient and safe operation on construction sites.
It adopts a simple mechanical structure and uses a disc-lock frame made of conventional steel bars and steel pipes on the construction site to install a spiral assist device on the top and bottom supports. It achieves quick assembly and disassembly by a single person through the lever assist principle, eliminating electric drive and complex precision structure.
It enables a single person to easily and quickly assemble and disassemble the top and bottom supports, reducing manual labor intensity, improving maintenance efficiency, reducing costs, adapting to various specifications of disc buckle frames, and is highly durable, making it suitable for large-scale adoption.
Smart Images

Figure CN122106265A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of construction equipment technology, specifically relating to a spiral assist device for installing the top and bottom supports of a disc-lock scaffold. It is particularly suitable for the rapid installation and disassembly of the spiral components of the top and bottom supports during daily maintenance and on-site disassembly and assembly of disc-lock scaffolds, and falls under the category of auxiliary construction tools for disc-lock scaffolds. Background Technology
[0002] With its advantages of high erection efficiency, strong structural stability, and high reusability, the disc-lock scaffolding is now widely used in various construction sites such as housing construction, municipal engineering, and bridge construction, becoming the mainstream formwork support and scaffolding erection system. During the reuse and daily maintenance of disc-lock scaffolding, the top and bottom supports, as core adjustment components, are prone to accumulating concrete residue, mortar, and other debris at their screw rods and adjusting nuts. Regular removal, cleaning, and lubrication are necessary before reinstallation.
[0003] The installation and dismantling of the top and bottom supports of the existing disc-lock scaffolding are generally carried out by manually rotating the nuts, which has obvious technical defects: on the one hand, the screw and nut fit tightly, and the resistance is large due to the adhesion of debris, so manual rotation is time-consuming and laborious, the efficiency of a single person is extremely low, the maintenance cycle is greatly extended, and the labor cost is increased; on the other hand, long-term manual operation is prone to wear and tear and sprains of the hands of construction workers, posing a construction safety hazard and failing to meet the requirements of lightweight and efficient operation on the construction site.
[0004] Patent novelty searches and literature retrieval revealed the following common drawbacks of existing related disc buckle frame adjustment auxiliary devices: First, the existing devices have complex structures, often including electric drive components, precision transmission parts, positioning and locking mechanisms, etc., requiring the use of electric equipment such as electric drills and motors. This not only results in high procurement and processing costs but also inconvenience in on-site carrying and debugging, and poor adaptability. Second, some devices have standardized component specifications and cumbersome installation, making it impossible to process them on-site using existing scrap materials, hindering rapid mass production and widespread adoption. Third, the complex structure is prone to failure, leading to high maintenance costs and insufficient durability in harsh construction site environments, failing to meet the needs of high-frequency turnover use.
[0005] Therefore, developing a disc-lock frame top and bottom support installation assistance device with a simple structure, readily available materials, purely manual operation, no need for electric assistance, and rapid on-site processing to solve the technical problems of laborious operation, low efficiency, complex structure, and high cost in the existing technology has become an urgent technical problem to be solved in this field. Summary of the Invention
[0006] The purpose of this invention is to address the shortcomings of existing disc-lock scaffold top and bottom support installation and disassembly operations, which are characterized by high labor consumption and low efficiency, as well as the complex structure, reliance on electric equipment, and poor on-site applicability of existing auxiliary devices. This invention provides a spiral assist device for installing disc-lock scaffold top and bottom supports, achieving the following objectives: First, it eliminates electric drive and complex precision structures, adopting a purely mechanical and simple structure, utilizing readily available steel bars and pipes on-site for on-site processing and manufacturing, significantly reducing manufacturing costs; second, through the lever assist principle, it greatly reduces the rotational resistance of the top and bottom support nuts, enabling easy and quick installation and disassembly by a single person, improving maintenance efficiency and reducing manual labor intensity; third, the device is compact, portable, and easy to operate, requiring no debugging, adaptable to various specifications of disc-lock scaffold top and bottom supports, highly durable, reusable, and suitable for large-scale application on construction sites.
[0007] To achieve the above objectives, the technical solution of the present invention is: A spiral-assisted mounting device for the top and bottom supports of a disc-lock frame includes a fixing mechanism, a rotating mechanism, a connecting mechanism, a hand handle, and a steel pipe grip. All components are fabricated using standard C12 steel bars and DN20 steel pipes found on-site, and are welded together to form a single, fork-like structure with no complex, detachable parts. Specific component specifications and connection relationships are as follows: 1. Component Selection and Dimensions: The core components of the device are made from four sections of C12 steel bars and one section of DN20 steel pipe. The precise dimensions of each component are as follows: the first section of steel bar is the handle, with a length controlled between 3cm and 4cm; the second section of steel bar is the connecting mechanism, with a length controlled between 6cm and 7cm, serving as the core connecting carrier of the entire device; the third section of steel bar is the fixing mechanism, with a length controlled between 15cm and 17cm; the fourth section of steel bar is the rotating mechanism, with a length controlled between 40cm and 45cm; and the DN20 steel pipe is used as an extended handle, with a length of 5cm, to be fitted onto the handle to extend the lever for assistance.
[0008] 2. Welding Assembly Structure: The hand handle is horizontally welded to the upper edge of the connecting mechanism, and is symmetrically distributed in opposite directions to the rotating mechanism. The connecting mechanism serves as an intermediate connecting carrier, with a fixing mechanism vertically welded to the middle of its lower end, and a rotating mechanism vertically welded to its lower edge on the side opposite to the hand handle. The fixing mechanism and the rotating mechanism are arranged parallel to each other, with the spacing adapted to the outer diameter of the top and bottom support screws of the disc buckle frame, forming a fork-shaped clamping structure with a single-sided opening. All welding parts adopt a full welding process to ensure structural strength and prevent deformation and detachment during operation.
[0009] 3. Matching grip structure: The inner diameter of the DN20 steel pipe grip is slightly larger than the outer diameter of the C12 steel bar, and it can be directly and movably inserted into the outside of the hand handle to form an extended lever handle, further increasing the rotation lever arm, reducing the rotation operation force, and realizing labor-saving operation.
[0010] Working principle and usage method of the spiral mounting assist device for the top and bottom supports of the disc buckle frame of the present invention This invention works based on the lever-assisted principle, requiring no power tools and can be operated entirely manually. The specific operating steps are as follows: 1. Prefabrication of the device: According to the above dimensions and specifications, cut existing C12 steel bars and DN20 steel pipes from the construction site, and weld each component according to the welding assembly requirements to make an integrated assist device. No additional debugging is required, and it can be put into use directly.
[0011] 2. Positioning and clamping: Insert the fixing mechanism of the device vertically into the outside of the screw of the top or bottom support of the disc buckle frame to achieve the positioning and limiting of the screw. At the same time, insert the end of the rotating mechanism into the reserved hole of the adjusting nut of the top or bottom support to complete the precise engagement of the device and the adjusting component.
[0012] 3. Rotation Operation: Insert the DN20 steel pipe handle into the hand handle, and the construction worker holds the steel pipe handle and applies rotational force around the screw axis. The torque is transmitted through the connecting mechanism, which drives the adjusting nut to rotate quickly, so as to realize the quick installation or removal of the top support and bottom support. During the rotation, the fixing mechanism always fits against the outside of the screw to prevent the device from shifting and ensure stable and smooth rotation operation.
[0013] After adopting the above technical solution, the spiral assist device for installing the top and bottom supports of the disc buckle frame of the present invention has the following advantages: 1. Extremely simple structure and easy to manufacture: The device abandons complex transmission and electric components and is only welded from conventional steel bars and steel pipes. There are no precision parts, and the structure is highly stable. All materials can be obtained on-site and processed using scrap materials. No professional equipment or customized accessories are required. The manufacturing process is simple and it can be used immediately after welding. It can be mass-produced quickly, which greatly reduces material and processing costs.
[0014] 2. Purely manual operation, labor-saving and efficient: Relying on the extended lever structure design, the rotation lever arm is greatly increased, transforming the original high-resistance operation of manual rotation into a light and labor-saving operation. A single person can quickly complete the disassembly and assembly of the top and bottom supports, increasing work efficiency by more than 60%, effectively shortening the maintenance cycle of the disc buckle frame, reducing the intensity of manual labor, and avoiding hand injuries caused by manual operation.
[0015] 3. High adaptability and durability: The device has a rigid welded structure with no easily damaged parts, making it resistant to impact and pollution, and suitable for harsh working environments on construction sites. The spacing design between the fixing mechanism and the rotating mechanism can be adapted to the standard specifications of disc buckle frame top and bottom supports, screws and nuts, making it highly versatile. It does not require separate manufacturing for different specifications, can be reused, and has a long service life.
[0016] 4. Portable and easy to operate, with wide applicability: The device is small in size and lightweight, making it convenient to carry and store. It does not require an external power supply or electric equipment and is not limited by the power conditions at the construction site. The operation process is simple and easy to understand, requiring no professional training. Construction personnel can quickly get started. It is suitable for large-scale promotion and use in various construction sites, effectively solving the pain points of maintenance work for modular scaffolding. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the spiral assist device for mounting the top and bottom supports of the disc buckle frame according to the present invention; Figure 2 This is a schematic diagram of the device in use according to the present invention.
[0018] In the diagram: 1-fixed mechanism, 2-rotating mechanism, 3-hand handle, 4-connecting mechanism, 5-steel pipe grip. Detailed Implementation
[0019] The present invention will be further described in detail below with reference to specific embodiments. The following embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention.
[0020] Example 1 Please see now Figure 1 and Figure 2 The spiral assist device for installing the top and bottom supports of the disc buckle frame of the present invention is made by selecting waste C12 steel bars and DN20 steel pipes from the construction site: a 3.5cm long C12 steel bar is cut as a hand handle 3, a 6.5cm long C12 steel bar is used as a connecting mechanism, a 16cm long C12 steel bar is used as a fixing mechanism 1, a 42cm long C12 steel bar is used as a rotating mechanism 2, and a 5cm long DN20 steel pipe is used as a steel pipe handle 5.
[0021] The handle is horizontally welded to one edge of the upper end of the connecting mechanism, the fixing mechanism is vertically welded to the middle of the lower end of the connecting mechanism, and the rotating mechanism is vertically welded to the lower end of the connecting mechanism 4, at the edge opposite to the handle 3, ensuring that the fixing mechanism and the rotating mechanism are parallel and the spacing is adapted to the outer diameter of the φ48 disc buckle screw; all welding parts are fully welded, and the weld scars are ground smooth to prevent scratches to construction personnel.
[0022] Application in the maintenance of modular brackets in residential interior decoration projects: When using, attach the fixing mechanism to the outside of the top support screw, insert the rotating mechanism into the reserved hole of the top support adjusting nut, put on the steel pipe handle and rotate clockwise. A single person can complete the installation of a top support in just 10 seconds, saving 80% of the time compared to manual operation. No power tools are required throughout the process. It is easy to operate and has no malfunctions. The device can be used continuously for more than 3 months without deformation or damage.
Claims
1. A spiral assist device for mounting the top and bottom supports of a disc buckle frame, characterized in that, It includes a fixing mechanism (1), a rotating mechanism (2), a hand handle (3), a connecting mechanism (4), and a steel pipe grip (5); the fixing mechanism (1), the rotating mechanism (2), and the hand handle (3) are all made of C12 steel bars and are welded to the corresponding positions of the connecting mechanism (4) to form an integrated fork-shaped structure; the steel pipe grip (5) is made of DN20 steel pipe and is movably sleeved on the outside of the hand handle (3) to form an extended assist handle.
2. The spiral assist device for installing the top and bottom supports of the disc buckle frame according to claim 1, characterized in that, The hand handle (3) is 3cm-4cm long and is horizontally welded to the upper edge of the connecting mechanism (4); the connecting mechanism (4) is 6cm-7cm long and serves as the core connecting carrier; the fixing mechanism (1) is 15cm-17cm long and is vertically welded to the lower middle part of the connecting mechanism (4); the rotating mechanism (2) is 40cm-45cm long and is vertically welded to the lower edge of the connecting mechanism (4), and is arranged in a reverse symmetrical manner with the hand handle (3) and is distributed parallel to the fixing mechanism (1).
3. The spiral assist device for installing the top and bottom supports of the disc buckle frame according to claim 1, characterized in that, The steel pipe handle (5) is 5cm long and has an inner diameter greater than the outer diameter of the C12 steel bar. It can be movably connected and disassembled to increase the rotation lever arm and achieve labor-saving rotation operation.
4. The spiral assist device for installing the top and bottom supports of the disc buckle frame according to claim 1, characterized in that, All components of the device are made from locally sourced steel bars and pipes found on the construction site. The components are connected by full welding, and the whole device is a purely mechanical rigid structure. It does not require electric drive components and can be operated manually.
5. The spiral assist device for installing the top and bottom supports of the disc buckle frame according to claim 1, characterized in that, When in use, the fixing mechanism (1) fits against the outside of the screw of the top or bottom support of the disc buckle frame to achieve positioning, and the rotating mechanism (2) is inserted into the reserved hole of the adjusting nut. The nut is driven to rotate quickly by rotating the steel pipe handle (5) to complete the installation and disassembly of the top and bottom supports.