An adjustable anchoring and tying device for the front outriggers of a high-leg suspended basket
By designing an adjustable anchoring and tying device for the front outriggers of the high-leg suspended platform, the problems of increased platform height and inconsistent outrigger spacing were solved, achieving stable installation and safe use of the suspended platform, and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-30
AI Technical Summary
During the installation of suspended platforms, the complex roof structure and site limitations necessitate raising the suspension mechanism of the suspended platform. Furthermore, the distance between the front outriggers of each suspended platform's suspension mechanism and the roof structure is inconsistent, requiring dynamic adjustment. Existing technologies struggle to effectively address this issue.
Design an adjustable anchoring and tying device for the front outrigger of a high-leg suspended platform, including an anchoring plate, an extension rod, a pressure plate, and connecting bolts. The anchoring plate is fixed to the roof structure. The combination of the adjustable fixing groove on the extension rod and the pressure plate enables continuous adjustment of the distance between the front outrigger of the suspended platform and the roof structure. Standardized bolts are used for connection to form an adjustable rigid tying structure.
It enables stepless adjustment of the distance between the front outriggers of the suspended platform and the roof structure, adapting to different building structure dimensions, improving installation efficiency and safety, avoiding the safety hazards of on-site welding, ensuring the stability of the suspended platform and preventing outrigger slippage.
Smart Images

Figure CN224431967U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to an adjustable anchoring and tying device for the front outriggers of a high-leg suspended platform. Background Technology
[0002] A suspended platform is a device that is suspended from a building or structure and uses a lifting mechanism to drive the platform up and down along the facade. The platform is driven by a motor in the lifting mechanism, which winds or releases a wire rope on a winch, thereby raising and lowering the work platform along the building facade. The suspension mechanism provides stable support, ensuring the stability of the suspended platform when working at heights. Simultaneously, safety devices activate promptly in case of abnormalities, ensuring the safety of personnel and equipment. The suspended platform can be freely raised, lowered, and moved along the building facade as needed. Suspended platforms are commonly used for exterior wall construction, decoration, and installation work. A high-leg suspended platform is one type of suspended platform.
[0003] Currently, during the installation of suspended platforms, due to the complexity of the roof structure and site limitations, the height of the roof truss of the building exceeds 3m. This necessitates raising the suspension mechanism of the suspended platform, while the normal installation height of the suspended platform support is 1.5-1.7m. Therefore, the most economical and practical method in this situation is to raise the front and rear supports of the suspended platform, allowing the front suspension to effectively extend beyond the roof truss and reach the building surface for normal operation. To ensure the safe use of the equipment during construction, measures such as securing the raised suspension mechanism to effectively prevent support slippage must be implemented to improve the stability and anti-tipping capacity of the suspension mechanism. Furthermore, due to site limitations, the distance between the front outriggers of each suspended platform's suspension mechanism and the roof structure is inconsistent during installation, requiring dynamic adjustment based on site conditions. Therefore, based on the above research and combined with existing technologies, an adjustable anchoring and securing device for the front outriggers of a high-leg suspended platform is proposed to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide an adjustable anchoring and tying device for the front outrigger of a high-leg suspended platform, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An adjustable anchoring and tying device for the front outrigger of a high-leg suspended platform includes: an anchoring plate, which is fixed to the roof truss beam, column or shear wall structure by expansion bolts, and the anchoring plate is provided with at least four through holes for reliable anchoring to the roof structure.
[0007] An extension rod, one end of which is welded to an anchor plate, and the other end of which is provided with an adjustable fixing groove for bolts extending along the length direction. The adjustable fixing groove is a long strip-shaped through groove that allows the bolts to slide and lock along the length of the groove.
[0008] The pressure plate is movably connected to the adjustable fixing groove of the extension rod by connecting bolts. The pressure plate is provided with bolt holes that match the connecting bolts for clamping and fixing the front support leg of the suspended basket.
[0009] Connecting bolts, which are standard fasteners, are used to securely connect the pressure plate and the extension rod to form an adjustable rigid tether structure.
[0010] Furthermore, the anchor plate is made of Q235B steel plate with a thickness of not less than 8mm, and the four through holes are distributed in a rectangular array, with the diameter of the through holes matching that of the M expansion bolt.
[0011] Furthermore, the extension rod is made of square steel tube or channel steel, and its length is customized according to actual needs. The length of the adjustable fixing groove is not less than 300mm, and the groove width matches the diameter of the connecting bolt.
[0012] Furthermore, the pressure plate has a U-shaped structure, with bolt holes on both sides of the flange for engaging with connecting bolts to clamp and fix the front outrigger of the basket.
[0013] Furthermore, the connecting bolts are high-strength bolts of grade 1 and equipped with anti-loosening washers or double-nut locking structures.
[0014] Furthermore, the welding of the extension rod to the anchor plate adopts a full welding process, the weld height is not less than 6mm, and the weld is treated with rust prevention.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. The adjustable mounting slot on the extension rod allows for continuous adjustment of the distance between the front outriggers of the suspended platform and the roof structure, adapting to different building structure dimensions, such as the significant differences in truss beams, columns, and shear walls. This solves the problem of traditional fixed anchoring devices requiring customization or on-site cutting. The extension rod and anchor plate are prefabricated with full welding, avoiding the risk of unstable on-site welding quality. The U-shaped pressure plate, combined with double bolt clamping, provides a more uniform clamping force distribution than a single-sided pressure plate, preventing outrigger slippage. The pre-welded extension rod design avoids the risk of high-altitude welding sparks and meets the safety regulations for prefabricated anchors. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] In the diagram: 1. Anchor plate; 2. Pressure plate connecting bolts; 3. Adjustable bolt fixing groove for pressure plate; 4. Front support leg of the suspended platform; 5. Pressure plate; 6. Extension rod. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] In one typical implementation of this application, please refer to Figure 1 An adjustable anchoring and tying device for the front outrigger of a high-leg suspended platform includes an anchor plate 1, which is fixed to a roof truss beam, column, or shear wall structure by expansion bolts. The anchor plate 1 has at least four through holes for reliable anchoring to the roof structure. An extension rod 6 has one end welded to the anchor plate 1 and the other end of the extension rod 6 has an adjustable fixing groove 3 extending along the length direction. The adjustable fixing groove 3 is a long strip-shaped through groove that allows the bolt to slide and lock along the length of the groove. A pressure plate 5 is movably connected to the adjustable fixing groove 3 of the extension rod 6 by connecting bolts 2. The pressure plate 5 has bolt holes that match the connecting bolts 2 for clamping and fixing the front outrigger 4 of the suspended platform.
[0021] Connecting bolt 2 is a standard fastener used to fasten the pressure plate 5 to the extension rod 6, forming an adjustable rigid tie structure.
[0022] The adjustable fixing groove 3 enables stepless adjustment of the distance between the front support leg 4 of the suspended platform and the roof structure, adapting to different installation environments. Standardized bolt connections facilitate installation and disassembly, improving turnover rate. The welded extension rod 6 forms a stable connection with the anchor plate 1, avoiding safety hazards caused by temporary on-site welding.
[0023] Anchor plate 1 is made of Q235B steel plate with a thickness of not less than 8mm, and has four through holes arranged in a rectangular array, with the diameter of the through holes matching that of M12 expansion bolts. This symmetrical arrangement of the four holes ensures more even stress distribution and is calculated to withstand tensile loads of over 5kN. The surface of anchor plate 1 is hot-dip galvanized with a zinc layer thickness of ≥80μm, effectively improving corrosion resistance. During installation, professional positioning tools are used to ensure drilling accuracy, and high-strength expansion bolts are used to achieve a reliable connection with the roof structure, ensuring that anchor plate 1 has sufficient tensile strength and deformation resistance, making it suitable for high-altitude work environments. The standardized through-hole design facilitates on-site installation and improves construction efficiency.
[0024] The extension rod 6 is made of square steel tube or channel steel, and its length is customized according to actual needs. The length of the adjustable fixing groove 3 is not less than 300mm, and the groove width matches the diameter of the connecting bolt 2. The square steel tube or channel steel structure provides high bending and torsional resistance, ensuring the stability of the device when operating in a high-leg suspended platform. The length of the adjustable fixing groove 3 meets different distance adjustment requirements, improving versatility.
[0025] The pressure plate 5 has a U-shaped structure, with bolt holes on both sides of the flanges for use with the connecting bolts 2 to clamp and fix the front support leg 4 of the suspended platform. The U-shaped pressure plate 5 enhances the clamping force on the front support leg 4 of the suspended platform, preventing slippage or loosening. The bolt fixing method on both sides improves the uniformity of force distribution and avoids deformation or failure caused by uneven force distribution on one side.
[0026] Connecting bolt 2 is an 8.8 grade high-strength bolt with a matching anti-loosening washer or double nut locking structure. The high-strength bolt ensures connection reliability and prevents loosening due to vibration or load changes. The anti-loosening measures improve long-term safety and reduce maintenance costs.
[0027] The extension rod 6 and the anchor plate 1 are welded using a full welding process, with a weld height of not less than 6mm, and the weld is treated with rust prevention. The full welding process ensures connection strength, avoids the risk of weld cracking, and the rust prevention treatment extends the service life of the device, making it suitable for outdoor high-altitude work environments.
[0028] Working principle: In use, according to the position of the front support leg 4 of the suspended platform, the anchoring point is determined on the roof truss beam, column or shear wall structure. The four through hole positions are marked on the structure using a special positioning template. The holes are drilled with an impact drill, and the hole diameter is matched with the M12 expansion bolt. After cleaning the dust in the hole, the expansion bolt is installed and the anchor plate 1 is fastened to the structure.
[0029] Secondly, the staff welded one end of the extension rod 6 to the anchor plate 1 using a full welding process, with the weld height controlled at 6-8mm to ensure welding quality. After welding, the weld was treated with rust prevention.
[0030] Next, the staff placed the front outrigger 4 of the suspended platform in the predetermined position, loosened the pressure plate connecting bolt 2, and slid the pressure plate 5 along the adjustable bolt fixing groove 3 of the extension rod 6. After adjusting it to the appropriate position, the staff tightened the pressure plate connecting bolt 2 to 60 N·m with a torque wrench. They checked whether the contact between the pressure plate 5 and the front outrigger 4 of the suspended platform was tight, installed anti-loosening washers on the pressure plate connecting bolt 2, and adopted a double nut locking structure to ensure reliable connection. The staff checked the bolt tightness regularly.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A high-boom basket front-boom adjustable anchoring tieback device, characterized by, include: Anchor plate (1), which is fixed to the roof truss beam, column or shear wall structure by expansion bolts, and the anchor plate (1) is provided with at least four through holes for reliable anchoring to the roof structure; An extension rod (6) is provided. One end of the extension rod (6) is welded to the anchor plate (1). The other end of the extension rod (6) is provided with an adjustable fixing groove (3) extending along the length direction. The adjustable fixing groove (3) is a long strip through groove that allows the bolt to slide and lock along the length direction of the groove. Pressure plate (5), the pressure plate (5) is movably connected to the adjustable fixing groove (3) of the extension rod (6) by connecting bolt (2), the pressure plate (5) is provided with bolt holes that match the connecting bolt (2) for clamping and fixing the front support leg (4) of the basket; Connecting bolt (2), which is a standard fastener, is used to fasten the pressure plate (5) and the extension rod (6) to form an adjustable rigid tie structure.
2. The adjustable anchoring and tying device for the front outrigger of a high-leg suspended platform according to claim 1, characterized in that: The anchor plate (1) is made of Q235B steel plate with a thickness of not less than 8mm, and the four through holes are arranged in a rectangular array with the diameter of the through holes matching that of the M12 expansion bolt.
3. The adjustable anchoring and tying device for the front outrigger of a high-leg suspended platform according to claim 2, characterized in that: The extension rod (6) is made of square steel pipe or channel steel, and its length is customized according to actual needs. The length of the adjustable fixing groove (3) is not less than 300mm, and the groove width matches the diameter of the connecting bolt (2).
4. The adjustable anchoring and tying device for the front outrigger of a high-leg suspended platform according to claim 3, characterized in that: The pressure plate (5) has a U-shaped structure, and its two side wing plates are respectively provided with bolt holes for use with connecting bolts (2) to form a clamping and fixing of the front support leg (4) of the basket.
5. The adjustable anchoring and tying device for the front outrigger of a high-leg suspended platform according to claim 4, characterized in that: The connecting bolt (2) is an 8.8 grade high-strength bolt and is equipped with anti-loosening washers or a double nut locking structure.
6. The adjustable anchoring and tying device for the front outrigger of a high-leg suspended platform according to claim 5, characterized in that: The welding of the extension rod (6) and the anchor plate (1) adopts a full welding process, the weld height is not less than 6mm, and the weld is treated with anti-rust treatment.