Building engineering wall construction ladder

Abstract

The utility model provides a building engineering wall construction ladder, and belongs to the technical field of building construction. The building engineering wall construction ladder comprises four bases, two supporting side frames are fixedly welded to the surfaces of the four bases, a bottom plate is installed in the two supporting side frames through fixing pieces, a construction platform is installed at the bottoms in two splicing side frames, connecting pieces are arranged between the two splicing side frames and the two supporting side frames, and a quick-release ladder assembly is installed in the two splicing side frames. Reinforcing pieces are installed at the bottoms of the bottom plate and the construction platform, protective pieces are installed on the surfaces of the bottom plate and the construction platform, through the design of the wall construction platform frame and the hanging grooves, the construction ladder module can be assembled on the ground in advance, then the construction ladder is assembled through hoisting operation by means of the hanging grooves, and the risk of assembling the construction ladder at the high altitude is greatly reduced; a constructor can safely climb in the construction ladder and benefit from all-around safety protection measures, so that potential safety hazards in high-altitude operation are effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a wall construction ladder for a construction project. Background Art

[0002] In modern construction, wall construction is a crucial step. As building heights continue to increase, the difficulty and risk of wall construction are also increasing. To ensure the safety of construction workers and improve construction efficiency, the use of construction ladders is particularly important.

[0003] Currently, traditional construction ladders are mostly simple scaffolding or temporary lifting devices. While they can assist construction workers with wall construction, these devices suffer from numerous deficiencies in functionality, safety, and efficiency, making them unable to meet the diverse demands of modern construction. While simple scaffolding has a long history, its high-altitude erection and dismantling processes are cumbersome and complex, consuming significant manpower and material resources. Furthermore, due to its limited structural stability, it poses significant safety risks in high-altitude working environments. On the other hand, while temporary lifting devices can provide basic vertical transportation, they generally lack comprehensive safety protection systems, making it difficult to guarantee the absolute safety of construction workers in complex and ever-changing working environments. These devices clearly no longer meet the high safety standards required by modern construction. Utility Model Content

[0004] In order to make up for the above deficiencies, the present application provides a wall construction ladder for construction projects to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention to solve the technical problem is as follows:

[0006] The ladder system of the present invention is a ladder system for assembling a ladder system for assembling a ladder and a user's guide. The ladder system is a structure in which the ladder system is installed. The ladder system is located in the ladder system of the present invention. The ladder system is located in the ladder system of the present invention. The ladder system is located in the ladder system of the present invention.

[0007] Furthermore, the top ends of the supporting side frame and the assembling side frame are designed to be convex and have hanging grooves.

[0008] Furthermore, the fixing part includes two threaded rods and two sets of locking nuts. The threaded ends of the two threaded rods respectively pass through the two supporting side frames and the side walls of the base plate fitted therewith, and extend out of the other side of the supporting side frames. The inner rings of the two sets of locking nuts are respectively threadedly connected to the threaded ends of the two threaded rods, and the inner side walls are provided with gaskets and fit with the side walls of the supporting side frames.

[0009] Furthermore, the quick-release ladder assembly includes a number of plug-in interfaces, a number of hexagonal bolts, a number of ladder rods and four cross bars. The two supporting side frames and the two assembled side frames are provided with a number of plug-in interfaces at equal intervals on their side walls, and four cross bars are welded to the inner tops respectively. The two ends of the ladder rods are respectively plugged into the inside of the number of plug-in interfaces, and the threaded ends of the hexagonal bolts respectively penetrate the outer walls of the two supporting side frames and the two assembled side frames, and are threadedly connected to the threaded holes on the side walls of the ladder rods.

[0010] Furthermore, the connecting parts include a plurality of plug-in columns, a plurality of plug-in holes and a plurality of fixing seats. The bottom ends of the plurality of plug-in columns are respectively integrally formed with the two sides of the top ends of the two supporting side frames and the two assembled side frames. The bottom ends of the two assembled side frames are respectively provided with a plurality of plug-in holes, and the interior of the plug-in holes is plugged with the corresponding top ends of the plug-in columns. One end of the plurality of fixing seats is respectively welded to the side walls of the two supporting side frames and the two assembled side frames, and the other end is connected to the wall bolts.

[0011] Furthermore, a notch is provided at one end of the construction platform, and both ends of the bottom are respectively fitted with the surfaces of the two supporting side frames.

[0012] Furthermore, the reinforcement includes a plurality of triangles and a plurality of fixing bolts, the fixed ends of the plurality of triangles are respectively fitted with the inner side walls of the two supporting side frames and the two assembled side frames, and the surfaces are respectively connected to the bottom plate and the two sides of the bottom of the construction platform, and the bottom ends of the plurality of fixing bolts respectively penetrate the outer side walls of the two supporting side frames and the two assembled side frames and are connected to the fixed end bolts of the plurality of triangles.

[0013] Furthermore, the protective part includes two protective frames and two round rods, the bottom ends of the two protective frames are respectively connected to the base plate and the outer side of the construction platform surface by bolts, the top ends are respectively welded to the bottoms of the two round rods, and the side walls are respectively fitted with the inner walls of the two supporting side frames and the two assembled side frames, and the two ends of the two round rods are respectively connected to the inner walls of the two supporting side frames and the two assembled side frames by bolts.

[0014] The utility model has the following beneficial effects:

[0015] 1. The connector of the utility model realizes a stable connection between the two supporting side frames and the two assembly side frames. This innovation not only simplifies the installation process, but also greatly enhances the overall structural strength of the construction ladder. Even more remarkable is that the exquisite coordination between the connector and the hanging groove provides unprecedented convenience for the assembly and hoisting of the construction ladder. Construction workers are able to complete the initial assembly of the construction ladder safely and efficiently on the ground, and then use the lifting equipment to easily lift the pre-assembled construction ladder module to the specified height and quickly dock it to the top of the installed construction ladder. This design not only significantly improves construction efficiency, but also greatly reduces the risks of high-altitude operations, setting a new benchmark for the safe construction of modern construction projects.

[0016] 2. The utility model is firmly supported by four bases, combined with the sturdy design of the supporting side frames and the assembled side frames, and the use of reinforcements and connectors, so that the entire construction ladder structure is stable, can withstand large loads, and ensure safety during the construction process.

[0017] 3. The utility model's quick-release ladder assembly design allows for quick connection and removal between the ladder bars and side frames via plug-in interfaces and hexagonal bolts, greatly facilitating the assembly and disassembly of the construction ladder and improving construction efficiency. Furthermore, the assembly side frames and supporting side frames can be quickly connected via connectors, further simplifying installation.

[0018] 4. The utility model provides all-round safety protection for construction workers through the setting of protective parts in conjunction with the quick-release ladder components installed inside the two supporting side frames and the two assembled side frames, reduces safety hazards in high-altitude operations, and effectively prevents the occurrence of accidents.

[0019] 5. The design of the construction platform of this utility model takes into account the convenience of construction. For example, the gaps are opened to facilitate construction workers to go up and down the construction ladder and carry materials, ensuring the safety of construction workers when climbing.

[0020] 6. The construction ladder of the utility model has a reasonable structural design and is not only suitable for the construction of ordinary building walls, but also can meet the construction needs of high-rise buildings, super high-rise buildings and complex structure buildings, and has broad application prospects.

[0021] 7. The various components of the utility model are connected by bolts or plug-in connections, which facilitates daily inspection, maintenance and replacement of damaged components, extends the service life of the construction ladder and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the following is a brief introduction to the drawings required for use in the implementation methods. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the structure of a wall construction ladder for a construction project provided by an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the assembly structure of the supporting side frame, quick-release ladder assembly, and protective parts provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the assembly structure of the side frame, quick-release ladder assembly, and protective parts provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram showing the structure of the plug-in interface provided in the embodiment of the present application;

[0027] Figure 5 Provided for the implementation of this application Figure 2 Enlarged structural diagram at point A in the middle.

[0028] In the figure: 1-base; 2-wall construction platform frame; 3-hanging groove; 21-support side frame; 22-bottom plate; 23-fixing parts; 24-quick-detach ladder assembly; 25-assembly side frame; 26-connecting parts; 27-construction platform; 28-reinforcement piece; 29-protective part; 231-threaded rod; 232-locking nut; 241-plug interface; 242-hexagonal bolt; 243-ladder rod; 244-cross bar; 261-plug-in column; 262-plug-in hole; 263-fixing seat; 271-notch; 281-triangle iron; 282-fixing bolt; 291-protective frame; 292-two round rods. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0030] Example:

[0031] See also Figure 1 、 Figure 2A wall construction ladder for construction projects includes four bases 1, each with mounting holes precisely defined at the four corners. This ingenious design greatly facilitates construction workers, allowing them to easily and accurately anchor the bases 1 firmly to the ground through standardized mounting holes, ensuring the entire ladder remains rock-solid during operation and providing solid support and safety for aerial work.

[0032] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 , a wall construction ladder for a construction project, including four bases 1 with a wall construction platform frame 2 fixedly welded on the surface, and the wall construction platform frame 2 consists of two supporting side frames 21, a bottom plate 22, a fixing part 23, a quick-release ladder assembly 24, two assembled side frames 25, a connecting part 26, a construction platform 27, a reinforcing part 28 and a protective part 29; the tops of the supporting side frames 21 and the assembled side frames 25 are set to be raised and have a hanging groove 3; the fixing part 23 includes two threaded rods 231 and two sets of locking nuts 232; the quick-release ladder 24 includes a number of plug interfaces 241, a number of hexagonal bolts 242, a number of ladder rods 243 and four cross bars 244; the connecting part 26 includes a number of plug-in columns 261, a number of plug-in holes 262 and a number of fixing seats 263; a notch 271 is opened at one end of the construction platform 27; the reinforcing part 28 includes a number of triangles 281 and a number of fixing bolts 282; the protective part 29 includes two protective frames 291 and two round rods 292.

[0033] Among them, the top of the supporting side frame 21 and the assembling side frame 25 is designed to be raised and integrated into the design of the hanging groove 3. This innovation not only improves the structural strength and stability of the construction ladder, but also greatly facilitates the hoisting and splicing operations during the construction process. The top raised design effectively disperses the force on the top of the ladder frame, enhances the stability of the overall structure, and ensures that it can still maintain good stability in high-altitude working environments. The close combination of the raised part and the hanging groove 3 provides a more reliable connection point for the hoisting operation, reducing the safety hazards caused by improper hoisting. Construction workers can complete part of the assembly work of the construction ladder on the ground in advance, and then quickly and safely install the assembled ladder frame module to the designated position through hoisting operations, greatly reducing the time and risk of high-altitude operations. In addition, an entrance and exit are left on the bottom side wall of the supporting side frame 21 to facilitate construction workers to enter and exit the interior of the construction ladder.

[0034] The design of the base plate 22 not only significantly enhances the connection stability between the two supporting side frames 21, but also optimizes the installation process of the protective member 29, making the installation process more convenient and efficient. This design reflects the dual consideration of structural strength and functional practicality, ensuring the stability and easy maintenance of the overall structure.

[0035] The fixings 23, a key component connecting the supporting side frames 21 and the base plate 22, are designed with structural stability and ease of installation in mind. The two threaded rods 231 penetrate the fixings and are secured by two sets of locking nuts 232, creating a secure connection between the supporting side frames 21 and the base plate 22. Each threaded rod 231 is designed so that its threaded end can penetrate the side walls of the two supporting side frames 21 and the base plate 22, which fit snugly against them. After passing through the side walls, the threaded ends of the rods 231 extend beyond the other side of the supporting side frames 21, facilitating subsequent locking operations. Next, the inner rings of the two sets of locking nuts 232 are threadedly connected to the threaded ends of the rods 231. To enhance the securing effect and prevent thread wear, washers are installed on the inner sidewalls of each set of locking nuts 232. These washers fit snugly against the side walls of the supporting side frames 21, ensuring the stability of the fixings and the overall stability of the construction ladder. During assembly, construction workers first insert threaded rod 231 through the predetermined holes in support side frame 21 and base plate 22. Then, they tighten locking nut 232 from the other side, creating a solid connection between base plate 22 and support side frame 21. This design not only improves the structural strength of the construction ladder but also facilitates subsequent maintenance and adjustment, as locking nut 232 can be removed and reinstalled at any time to adapt to different construction needs.

[0036] The quick-release ladder assembly 24, a key component of the construction ladder, fully demonstrates its modular design and convenient assembly. The side walls of the two supporting side frames 21 and the two assembly side frames 25 are equipped with several equally spaced insertion ports 241 for connecting to the ends of the ladder rods 243. Crossbars 244 are welded to the inner top of each side frame, providing additional support and ensuring the continuity of the multiple ladder rods 243. Construction workers first insert the ends of the ladder rods 243 into the corresponding insertion ports 241. Then, the threaded ends of the hexagonal bolts 242 pass through the outer walls of the supporting side frames 21 and the assembly side frames 25 and threadably connect with the threaded holes in the side walls of the ladder rods 243. By tightening the hexagonal bolts 242, the ladder rods 243 are securely fixed between the side frames, forming a stable ladder step structure. The design of the quick-release ladder assembly 24 makes the assembly and disassembly of the construction ladder exceptionally simple. When the construction ladder needs to be repaired, the construction worker only needs to loosen the hexagonal bolts 242 to quickly remove the ladder rods 243, thus completing the maintenance of the construction ladder. This design not only improves construction efficiency but also reduces safety risks during the construction process, because the construction workers can complete all assembly and disassembly work on the ground without having to operate at height.

[0037] The modular side frames 25, designed to extend the height of the construction ladder, not only significantly expand the ladder's applicability but also ensure structural stability and safety. Through a connection mechanism, the modular side frames 25 seamlessly integrate into the main ladder system, allowing for easy adjustment of the ladder's height as needed. These side frame structures are designed to balance convenience and stability, making installation and removal quick and easy, requiring no complex tools or specialized skills.

[0038] Among them, the connector 26 is a key component for the quick-release ladder to be extended in height and fixed to the wall. Each plug-in column 261 is integrally formed on both sides of the top of the two supporting side frames 21 and the two assembly side frames 25. These plug-in columns 261 should have good dimensional accuracy and surface quality to ensure a tight fit with the plug-in holes 262. The bottom ends of the two assembly side frames 25 are provided with a number of plug-in holes 262, which precisely match the top ends of the corresponding plug-in columns 261, achieving quick and secure plug-in. One end of the several fixing seats 263 will be welded to the side walls of the supporting side frames 21 and the assembly side frames 25, and the other end is used for bolt connection to the wall. The design of this connector 26 not only simplifies the assembly process of the construction ladder, but also improves its stability during use. Through plug-in and bolt fixing, the construction ladder can withstand greater loads while reducing potential risks caused by vibration or external forces. The connection between the fixing seat 263 and the wall bolts further ensures the stability of the construction ladder in the vertical direction, providing a safe and reliable working platform for construction workers.

[0039] The construction platform 27 is bolted to the two assembled side frames 25, which not only strengthens the connection between the two assembled side frames 25 but also makes it convenient for construction workers to stand on it while working. The notch 271 in the construction platform 27 allows construction workers to more easily enter and exit the construction area. Since workers climb from the inside and are protected by the protective member 29, this provides a safe working environment for them. This design is particularly user-friendly when carrying tools or materials. The size and position of the notch 271 are adjusted according to needs, ensuring safe passage while maximizing the use of the platform space.

[0040] The design of the reinforcements 28 enhances the bearing capacity of the base plate 22 and the construction platform 27. The fixed end of each triangle 281 fits snugly against the inner sidewalls of the two supporting side frames 21 and the two assembly side frames 25. The surface of each triangle 281 is braced against both sides of the base plate 22 and the bottom of the construction platform 27. A corresponding number of fixing bolts 282 are provided to securely connect the triangles 281 to the supporting side frames 21 and the assembly side frames 25. These bolts should be strong and corrosion-resistant to ensure long-term reliability. This creates a sturdy support structure. This design allows the triangles 281 to effectively distribute and withstand pressure during construction, thereby improving the stability of the construction ladder. When assembling the reinforcements, construction workers place the triangles 281 on the inner sidewalls of the side frames, ensuring that their fixed ends fit snugly against them. Subsequently, the bottom ends of the fixing bolts 282 penetrate the outer walls of the supporting side frames 21 and the assembly side frames 25 and are bolted to the fixed ends of the triangles 281. Tightening the fixing bolts 282 securely connects the triangle 281 to the side frame, further enhancing the structural strength of the construction ladder. This reinforcement design ensures the ladder maintains excellent stability when subjected to heavy loads or external forces, ensuring the safety of construction workers. Furthermore, the removable nature of the reinforcement 28 facilitates maintenance and repair of the construction ladder, extending its service life.

[0041] The protective element 29, a crucial safety accessory for quick-release ladders, is designed to enhance the safety of construction workers during operation. The bottom end of each protective frame 291 is bolted to the outer surface of the base plate 22 and the construction platform 27, ensuring the secure installation of the protective element 29. The top of the protective frame 291 is welded to the bottom of two round rods 292, forming a continuous protective barrier. The side walls of the two protective frames 291 fit snugly against the inner walls of the two supporting side frames 21 and the two assembled side frames 25, respectively, further enhancing the protective effect. The ends of the two round rods 292 are bolted to the inner walls of the two supporting side frames 21 and the two assembled side frames 25, respectively. This design not only improves the overall stability of the protective element 29 but also effectively prevents falls if a worker accidentally touches the protective element during construction. The installation position and height of the protective element 29 are adjusted according to specific needs to maximize coverage of the edge area of the construction ladder, providing comprehensive safety protection for construction workers.

[0042] The working principle of this construction wall construction ladder is as follows: To use it, first assemble the two supporting side frames 21 with the base plate 22 using two threaded rods 231 and two sets of locking nuts 232. Then, install the quick-release ladder assembly 24 inside the two supporting side frames 21 and move it to the desired position. The ladder is then secured in place using the four bases 1. To extend the ladder's height, construction workers assemble the two assembled side frames 25 with the construction platform 27 in a safe area on the ground. They then install the quick-release ladder assembly 24 inside the two assembled side frames 25. The assembled ladder frame modules are then quickly and safely hoisted. The assembled side frames 25 are then positioned above the supporting side frames 21, aligning the sockets 262 at the bottom of the assembled side frames 25 with the sockets 261 at the top of the supporting side frames 21. The sockets 261 are then smoothly inserted into the sockets 262 to achieve a preliminary connection. After the connection is complete, the corresponding positions of the fixing bases 263 are marked on the wall and pre-drilled with bolt holes. Then, use bolts to tightly connect the other end of the fixing base 263 to the wall. When tightening the bolts, use a torque wrench to control the tightening torque to ensure a secure connection without damaging the wall. This analogy allows the construction ladder to be suitable for higher wall construction. Construction workers enter the base plate 22 through the pre-reserved entrance and exit, climb up through the ladder rods 243, and enter the construction platform 27 through the gap 271. At the same time, they are protected by the protective member 29, so that construction workers can work safely.

[0043] It should be noted that the specific models and specifications of the construction platform 27 and the ladder rod 243 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0044] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A wall construction ladder for construction engineering, comprising four bases (1), characterized in that: The four bases (1) are fixedly welded with a wall construction platform frame (2), and the wall construction platform frame (2) is composed of two supporting side frames (21), a bottom plate (22), a fixing member (23), a quick-release ladder assembly (24), two assembled side frames (25), a connecting member (26), a construction platform (27), a reinforcement member (28) and a protective member (29). The bottom ends of the two supporting side frames (21) are respectively welded to the surfaces of the four bases (1), the bottom plate (22) is installed between the two supporting side frames (21) through the fixing member (23), and the quick-release ladder assembly (24) is respectively installed on The connecting member (26) is provided at the connection between the two supporting side frames (21) and the two assembling side frames (25), and the construction platform (27) is installed between the two assembling side frames (25). The fixed end of the reinforcing member (28) is bolted to the inner side walls of the two supporting side frames (21) and the two assembling side frames (25), and the surface is tightly fitted with the bottom plate (22) and the bottom of the construction platform (27). The protective member (29) is bolted to the bottom plate (22) and the construction platform (27).

2. A construction ladder for wall construction in construction engineering according to claim 1, characterized in that: The top ends of the supporting side frame (21) and the assembling side frame (25) are configured to be convex and to be provided with hanging grooves (3).

3. A construction ladder for wall construction in construction engineering according to claim 2, characterized in that: The fixing member (23) includes two threaded rods (231) and two sets of locking nuts (232), the threaded ends of the two threaded rods (231) respectively penetrate the two supporting side frames (21) and the side walls of the base plate (22) in contact therewith, and extend out of the other side of the supporting side frame (21), the inner rings of the two sets of locking nuts (232) are respectively threadedly connected to the threaded ends of the two threaded rods (231), and the inner side walls are provided with gaskets and in contact with the side walls of the supporting side frames (21).

4. A construction ladder for wall construction in construction engineering according to claim 3, characterized in that: The quick-detachable ladder assembly (24) comprises a plurality of plug-in interfaces (241), a plurality of hexagonal bolts (242), a plurality of ladder rods (243) and four cross rods (244). The side walls of the two supporting side frames (21) and the two assembling side frames (25) are provided with the plurality of plug-in interfaces (241) at equal intervals, and the inner tops are respectively welded with four cross rods (244). The ends of the plurality of ladder rods (243) are respectively plugged into the interior of the plurality of plug-in interfaces (241). The threaded ends of the plurality of hexagonal bolts (242) respectively penetrate the outer walls of the two supporting side frames (21) and the two assembling side frames (25) and are threadedly connected to the threaded holes provided on the side walls of the plurality of ladder rods (243).

5. A construction ladder for wall construction in construction engineering according to claim 4, characterized in that: The connecting member (26) includes a plurality of plug-in columns (261), a plurality of plug-in holes (262) and a plurality of fixing seats (263). The bottom ends of the plurality of plug-in columns (261) are respectively integrally formed with the top sides of the two supporting side frames (21) and the two assembling side frames (25). The bottom ends of the two assembling side frames (25) are respectively provided with a plurality of plug-in holes (262). The insides of the plug-in holes (262) are plugged with the top ends of the corresponding plug-in columns (261). One end of the plurality of fixing seats (263) is respectively welded to the side walls of the two supporting side frames (21) and the two assembling side frames (25), and the other end is connected to the wall bolts.

6. A construction ladder for wall construction in construction engineering according to claim 5, characterized in that: A notch (271) is provided at one end of the construction platform (27), and both ends of the bottom are respectively fitted with the surfaces of the two supporting side frames (21).

7. A construction ladder for wall construction in construction engineering according to claim 6, characterized in that: The reinforcing member (28) includes a plurality of triangular irons (281) and a plurality of fixing bolts (282), wherein the fixed ends of the plurality of triangular irons (281) are respectively fitted with the inner side walls of the two supporting side frames (21) and the two assembling side frames (25), and the surfaces are respectively connected to the bottom plate (22) and the two sides of the bottom of the construction platform (27), and the bottom ends of the plurality of fixing bolts (282) respectively penetrate the outer side walls of the two supporting side frames (21) and the two assembling side frames (25) and are bolted to the fixed ends of the plurality of triangular irons (281).

8. A construction ladder for wall construction in construction engineering according to claim 7, characterized in that: The protective member (29) comprises two protective frames (291) and two round rods (292), the bottom ends of the two protective frames (291) are respectively connected to the outer surfaces of the bottom plate (22) and the construction platform (27) by bolts, the top ends are respectively welded to the bottoms of the two round rods (292), and the side walls are respectively fitted with the inner walls of the two supporting side frames (21) and the two assembled side frames (25), and the two ends of the two round rods (292) are respectively connected to the inner walls of the two supporting side frames (21) and the two assembled side frames (25).

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