Cloth material elevator shaft protection operation platform

Abstract

The application relates to the technical field of building construction, and provides a distribution machine elevator shaft protection operation platform, which comprises a base assembly and an operation platform assembly, the base assembly is arranged below the operation platform assembly, and a standard section is fixed on the base assembly; the base assembly comprises two horizontal square steel tubes and two vertical square steel tubes, the horizontal square steel tubes and the vertical square steel tubes are cross-fixedly connected to form a well-shaped fixed structure, and the bottom of the standard section is fixed on the horizontal square steel tubes and the vertical square steel tubes; the operation platform assembly comprises two first platforms and two second platforms, the first platforms and the second platforms are fixed around the standard section, and the side, away from the standard section, of the first platforms and the second platforms abuts against the inner wall of the elevator shaft. The application realizes the reduction of the gap between the distribution machine and the elevator shaft, meets the construction operation demand, and meets the protection requirement of high-altitude operation.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and more specifically, to a protective operating platform for a concrete placing boom elevator shaft. Background Technology

[0002] In construction projects, most commercial office buildings and residential buildings adopt the construction process of aluminum formwork plus attached lifting scaffolding (referred to as climbing scaffolding). The construction speed of aluminum formwork plus climbing scaffolding is fast, and the concrete pouring cycle is short. Traditional concrete placing booms cannot keep up with the requirements of the new process, so a climbing tower concrete placing boom was developed. Tower concrete placing booms are mostly installed in elevator shafts and lifted together with the aluminum formwork climbing scaffolding. Because the placing boom is attached to the elevator shaft, there is a large gap between the tower body of the placing boom and the side wall of the elevator shaft. This is not only inconvenient for the construction workers of steel bars, formwork, etc., but also does not meet the safety protection management requirements for working at heights.

[0003] Currently, the following three solutions are typically adopted to address the above problems:

[0004] Firstly, the traditional or small concrete placing boom is used, placing concrete according to the direction of pouring and moving the boom after each section is poured. This method involves erecting the boom on a formwork support frame, which requires reinforcement. However, aluminum alloy formwork systems typically lack lateral reinforcement measures for their columns. Because the concrete pumping process generates significant vibrations in the floor slab, safety is poor, and it negatively impacts the initial forming and strength development of the concrete. Furthermore, the need to move the boom during concrete pouring prolongs the pouring time, leading to other problems such as leaks due to cold joints, complaints about nighttime construction, and project delays.

[0005] Secondly, a tower-type concrete placing boom is used, but it is not placed inside the elevator shaft. Instead, it is placed in a relatively central location, such as the elevator lobby. An opening is made in the elevator lobby area to house the tower-type concrete placing boom. The tower-type concrete placing boom is placed in the elevator lobby area, not inside the elevator shaft. A 1.2m × 1.2m structural hole is made in the lobby area to house the tower-type concrete placing boom. It is difficult to fill the hole later, and the conduits pre-embedded in the elevator lobby floor slab have to be installed around the opening. All the pre-embedded conduits are installed around both sides of the opening, resulting in poor concrete forming quality on both sides of the opening. The floor slab thickness has to be increased to avoid cracking later, but increasing the floor slab thickness for one opening is not economical.

[0006] Third, a tower-type concrete placing boom is used and placed inside the elevator shaft. The gap between the tower-type concrete placing boom and the elevator shaft is filled with steel mesh. However, because the standard size of the steel mesh is 0.6m × 0.9m, it is often easily impacted or pulled during the lifting process of the tower-type concrete placing boom, leading to the steel mesh falling off or other safety accidents (such as the breaking of the hoisting wire rope). If the steel mesh is cut off as needed for laying, the reduced size and poor integrity also create a safety hazard of easily falling into the gap.

[0007] To address the above issues, how to meet the basic requirements for the installation and use of tower concrete placing booms in elevator shafts, while also ensuring the safety of on-site workers operating at the elevator shaft opening, is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0008] The purpose of this application is to provide a protective operating platform for a concrete placing boom elevator shaft, which seals the gap between the concrete placing boom and the elevator shaft. This not only meets the construction needs of workers at the elevator shaft opening, but also meets the safety protection management requirements for high-altitude operations, and can also meet the basic needs of the installation and use of tower concrete placing booms in the elevator shaft.

[0009] The objective of this application is achieved through the following technical solution:

[0010] This application provides a protective operating platform for a concrete placing machine elevator shaft, which is used in conjunction with a concrete placing machine. The concrete placing machine includes a standard section, which is fixed inside the elevator shaft. The protective operating platform for the concrete placing machine elevator shaft includes a base assembly and an operating platform assembly. The base assembly is located below the operating platform assembly, and the standard section is fixed on the base assembly.

[0011] The base assembly includes two horizontal square steel pipes and two vertical square steel pipes. The horizontal square steel pipes and the vertical square steel pipes are cross-fixed to form a grid-shaped fixing structure. The two ends of the horizontal square steel pipes and the two ends of the vertical square steel pipes are respectively inserted into the reserved openings in the elevator shaft for fixing. The bottom of the standard section is fixed to the horizontal square steel pipes and the vertical square steel pipes.

[0012] The operating platform assembly includes two first platforms, two second platforms, a plurality of first rigid support members, and a plurality of second rigid support members. The first platforms, second platforms, and rigid support members are all detachably connected to the standard section. The two first platforms are arranged opposite to each other, and the two second platforms are arranged opposite to each other. The first platforms and second platforms surround and fix the standard section. The side of the first platform and the second platform away from the standard section abuts against the inner wall of the elevator shaft. One end of the first rigid support member is fixed to the standard section, and the other end abuts against the first platform to support the first platform. One end of the second rigid support member is fixed to the standard section, and the other end abuts against the second platform to support the second platform.

[0013] In some possible embodiments, the first platform includes a first support plate, a first telescopic member, and a first abutting member. The first telescopic member is disposed on the side of the first support plate away from the standard section. The first abutting member is connected to the first telescopic member. The first telescopic member can extend and retract along the direction of the first support plate toward the inner wall of the elevator shaft, thereby moving the first abutting member so that the first abutting member abuts against the inner wall of the elevator shaft.

[0014] The second platform includes a second support plate, a second telescopic member, and a second abutment member. The second telescopic member is located on the side of the second support plate away from the standard section. The second abutment member is connected to the second telescopic member. The second telescopic member can extend and retract along the direction of the second support plate toward the inner wall of the elevator shaft, thereby moving the second abutment member so that the second abutment member abuts against the inner wall of the elevator shaft.

[0015] In some possible embodiments, the concrete placing machine elevator shaft protection operating platform further includes several rotating components. The standard section has four supporting square legs, and the several rotating components are respectively disposed on the four supporting square legs. The several rotating components are respectively rotatably connected to the first bearing plate and the second bearing plate, so that the first bearing plate and the second bearing plate can rotate toward the standard section to accommodate the first bearing plate and the second bearing plate.

[0016] In some possible embodiments, the rotating assembly includes a plurality of connectors and hinge lugs. The connectors include a first plate and a second plate. The first plate and the second plate are connected in an L-shape and are respectively fixed to adjacent sides of one of the supporting square legs. The plurality of hinge lugs are fixed to the first plate and the second plate.

[0017] In some possible embodiments, the first support plate has two first slots on one side and a first connecting hole penetrating the first support plate along the arrangement direction of the two first slots. The shape of the first slots matches the shape of the hinge ears. The two hinge ears located on the two supporting legs are respectively disposed in the two first slots. The hinge ears have hinge holes. The first connecting hole communicates with the hinge hole on the hinge ear. A first rotating shaft is inserted along the first connecting hole and the hinge hole. The second support plate has two second slots on one side and a second connecting hole penetrating the second support plate along the arrangement direction of the two second slots. The shape of the second slots matches the shape of the hinge ears. The two hinge ears located on the two supporting legs are respectively disposed in the two second slots. The hinge ears have hinge holes. The second connecting hole communicates with the hinge hole on the hinge ear. A second rotating shaft is inserted along the second connecting hole and the hinge hole.

[0018] In some possible embodiments, each first platform is connected to two first rigid support members, and each second platform is connected to two second rigid support members. The first rigid support members are rotatably connected to the standard section, and the second rigid support members are rotatably connected to the standard section.

[0019] In some possible embodiments, both ends of the horizontal square tube and both ends of the vertical square tube are provided with wooden blocks and I-beams.

[0020] In some possible embodiments, the vertical square tube includes a main square tube and a sub-square tube. The sub-square tube is sleeved at one end of the main square tube. The sub-square tube can extend and retract along the length of the main square tube and is fixed to the main square tube by bolts or pins.

[0021] In some possible embodiments, both the first platform and the second platform further include a plurality of steel bars, which are arranged in an array below the first support plate and the second support plate, respectively.

[0022] In some possible embodiments, the distance between the side of the first support plate near the inner wall of the elevator shaft and the side of the second support plate near the inner wall of the elevator shaft and the inner wall of the elevator shaft is not less than 300mm.

[0023] The technical solutions of this application have at least the following advantages and beneficial effects:

[0024] This application primarily addresses the issue of standard sections not being directly installable within the elevator shaft by using a base assembly fixed inside the shaft and a standard section fixed to the base assembly. It also solves the problem of securing the standard section by placing it on the base assembly. Furthermore, by installing an operating platform assembly above the base assembly, the distance between the standard section and the elevator shaft is reduced, providing a platform for workers and further securing the standard section to ensure greater stability of the concrete placing machine during operation. Specifically, a grid-shaped square steel pipe is used for support, connecting the standard section to the square steel pipe. The standard section and square steel pipe can be directly hoisted into the elevator shaft together using a tower crane, facilitating installation. The first and second platforms in the operating platform assembly are combined to form an operating platform, allowing workers to stand and perform their work, thus avoiding the significant safety hazards associated with excessive distance between the standard section and the elevator shaft. The four platforms enclosing the standard section further reinforces it, reducing vibrations generated by the concrete placing machine. In addition, the operating platform assembly and base assembly are detachably connected to the standard section, which is convenient for installation and disassembly. When changing the working floor, only the tower crane needs to be used to raise the standard section, and the base assembly and operating platform assembly can be raised simultaneously to change the working floor. The operation is convenient, time-saving and labor-saving. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this application and are not intended to limit this application, wherein:

[0026] Figure 1 This application provides a schematic diagram of the structure of a protective operating platform for a concrete placing boom elevator shaft, as shown in the embodiments of this application.

[0027] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0028] Figure 3 This is a schematic diagram of the structure of the operating platform component provided in the embodiments of this application;

[0029] Figure 4 for Figure 3 A schematic diagram of the exploded structure;

[0030] Figure 5 This is a schematic diagram of the structure connecting the first platform and the rotating component in an embodiment of this application;

[0031] Figure 6 for Figure 5 A schematic diagram of the exploded structure;

[0032] Figure 7This is a schematic diagram of the base assembly provided in an embodiment of this application.

[0033] Icons: 1. Standard section; 11. Supporting square leg; 2. Base assembly; 21. Horizontal square steel tube; 22. Vertical square steel tube; 221. Main square tube; 222. Sub-square tube; 3. Operating platform assembly; 31. First platform; 311. First bearing plate; 3111. First slot; 312. First telescopic component; 313. First abutment component; 32. Second platform; 321. Second bearing plate; 3211. Second slot; 322. Second telescopic component; 323. Second abutment component; 33. First rigid support component; 34. Second rigid support component; 4. Rotating assembly; 41. Connector; 411. First plate; 412. Second plate; 42. Hinge; 43. First pivot; 44. Second pivot. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0036] To facilitate understanding of the present application, the spline curves and arrows used in the reference numerals in the accompanying drawings are explained below: spline curves without arrows indicate solid parts, that is, parts with solid structures; spline curves with arrows indicate virtual parts, that is, parts without solid structures.

[0037] Traditional concrete placing booms require pre-drilled installation holes. In prefabricated building construction, reserving these holes in the precast floor slabs significantly increases the workload, and the subsequent sealing of these holes negatively impacts project costs, quality, and safety, failing to meet the construction requirements of prefabricated buildings. This application details an integrated safety protection platform for concrete placing booms used in prefabricated building construction. During operation, the tower body is fixed below the working level, with the conveyor pipe and rotating boom resting on the tower body. The boom extends 3-4 meters above the working level, completely separating the placing boom from the working level. This ensures that the conveyor pipe installation does not affect the working level and provides timely and effective safety protection.

[0038] Please see also Figure 1 and Figure 2 This application provides a protective operating platform for a concrete placing boom elevator shaft. This platform is primarily used to secure the concrete placing boom and provide an operating platform for workers, while also offering safety protection. The platform is used in conjunction with the concrete placing boom, which includes a standard section 1, i.e., the aforementioned tower body. The standard section 1 is fixed within the elevator shaft. The protective operating platform specifically includes a base assembly 2 and an operating platform assembly 3. The base assembly 2 is located below the operating platform assembly 3, and the standard section 1 is fixed to the base assembly 2.

[0039] The base assembly 2 includes two horizontal square steel pipes 21 and two vertical square steel pipes 22. The horizontal square steel pipes 21 and the vertical square steel pipes 22 are cross-fixed to form a grid-shaped fixing structure. The two ends of the horizontal square steel pipes 21 and the two ends of the vertical square steel pipes 22 are respectively inserted into the reserved openings in the elevator shaft for fixing. The bottom of the standard section 1 is fixed on the horizontal square steel pipes 21 and the vertical square steel pipes 22.

[0040] The operating platform component 3 includes two first platforms 31, two second platforms 32, several first rigid support members 33, and several second rigid support members 34. The first platforms 31, second platforms 32, and rigid support members are all detachably connected to the standard section 1. The two first platforms 31 are arranged opposite to each other, and the two second platforms 32 are arranged opposite to each other. The first platforms 31 and the second platforms 32 surround and fix the fabric placing machine. The side of the first platforms 31 and the second platforms 32 away from the standard section 1 abuts against the inner wall of the elevator shaft. One end of the first rigid support member 33 is fixed to the standard section 1, and the other end abuts against the first platform 31 to support the first platform 31. One end of the second rigid support member 34 is fixed to the standard section 1, and the other end abuts against the second platform 32 to support the second platform 32. Specifically, the first rigid support 33 abuts against the lower surface of the first platform 31. This abutment connection can be achieved using bolts, where a bolt passes from the upper surface of the first platform 31 to its lower surface and is threaded onto the top of the first rigid support 33. Similarly, the second rigid support 34 abuts against the lower surface of the second platform 32, also using bolts. This bolt connection can also involve a bolt passing from the upper surface of the second platform 32 to its lower surface and being threaded onto the top of the second rigid support 34. In other words, threaded holes are formed at the top of both the first and second rigid support 33, and corresponding bolt holes are formed on both the first and second platforms 31 and 32.

[0041] The technical solution provided in this application mainly utilizes a base assembly 2 to fix the standard section 1, providing a suitable location for installation. Using tools such as a tower crane, the standard section 1 and base assembly 2 are hoisted together into the elevator shaft for simultaneous installation, improving installation efficiency. Specifically, the horizontal square steel pipe 21 and vertical square steel pipe 22 in the base assembly 2 cooperate to form a grid-shaped base, suitable for elevator shaft structures. Both ends of the steel pipes are inserted into pre-reserved openings in the precast floor slab to fix the base assembly 2. Furthermore, the operating platform assembly 3 is used to reinforce the portion of the standard section 1 located on the N-1 floor and to provide a working platform for workers. Specifically, two first platforms 31 and two second platforms 32 cooperate, surrounding the standard section 1 and detachably connecting to it. The side facing away from the standard section 1 abuts against the inner wall of the elevator shaft, further securing the standard section 1 and reducing vibrations caused by the concrete placing boom during construction. Furthermore, the cooperation of the first platform 31 and the second platform 32 forms an operating platform and reduces the gap between the standard section 1 and the elevator shaft, effectively reducing the probability of accidents to workers due to excessive gaps. In addition, for the first platform 31 and the second platform 32, a first rigid support member 33 and a second rigid support member 34 are respectively installed below the first platform 31 and the second platform 32 to support the first platform 31 and the second platform 32, thereby improving the load-bearing capacity of the first platform 31 and the second platform 32.

[0042] It should be noted that the connection between the vertical square tube steel pipe 22 and the horizontal square tube steel pipe 21 is mainly formed by welding, making the horizontal square tube steel pipe 21 and the vertical square tube steel pipe 22 an integral structure, which helps to increase the load-bearing strength of the base assembly 2. The fixing between the standard section 1 and the base assembly 2 is also mainly achieved by connecting the four support legs of the standard section 1 to the square tube steel pipes. The connection method can use bolts, U-shaped top supports, and steel pipe fasteners to achieve detachable fixing, facilitating the assembly and disassembly of the standard section 1 and the base assembly 2. Due to the concrete pouring, concrete residue is easily left on the base assembly 2. The ease of assembly and disassembly between the standard section 1 and the base assembly 2 also facilitates cleaning of the base assembly 2. Furthermore, the positional relationship between the base assembly 2 and the operating platform assembly 3 is briefly described here. The height of the elevator shaft where the standard section 1 is located mainly includes: floor N, floor N-1, and floor N-2. Here, floor N refers to the working floor. The operating platform assembly 3 is located on floor N-1, and the base assembly 2 is located on floor N-2.

[0043] In some embodiments, see Figure 3 and Figure 4The first platform 31 includes a first support plate 311, a first telescopic member 312, and a first abutment member 313. The first support plate 311 has a telescopic groove, and the first telescopic member 312 is located within this groove and extends outwards towards the side opposite to the standard section 1. The first abutment member 313 connects to the side of the first telescopic member 312 opposite to the standard section 1. By utilizing the telescopic movement of the first telescopic member 312, the first abutment member 313 can abut against the inner wall of the elevator shaft. The telescopic function of the first telescopic member 312 expands the range of elevator shafts of different sizes that the operating platform assembly 3 can be applied to to a certain extent. Furthermore, the arrangement of the first telescopic member 312 and the first abutment member 313 effectively facilitates the lifting of the standard section 1. It should be noted that the length and width dimensions of the first support plate 311 are always smaller than the length and width dimensions inside the elevator shaft to allow for a certain gap, facilitating the extension of steel ropes, pipes, etc., above the elevator shaft.

[0044] Similarly, the second platform 32 includes a second support plate 321, a second telescopic member 322, and a second abutment member 323. The second telescopic member 322 is located in a telescopic groove on the side of the second support plate 321 opposite to the standard section 1. The second abutment member 323 is connected to the second telescopic member 322. The second telescopic member 322 can extend and retract along the direction of the second support plate 321 toward the inner wall of the elevator shaft, causing the second abutment member 323 to move so that the second abutment member 323 abuts against the inner wall of the elevator shaft. By utilizing the extension and retraction of the second telescopic member 322, the second abutment member 323 can abut against the inner wall of the elevator shaft. By utilizing the extension and retraction function of the second telescopic member 322, the range of elevator shafts of different sizes that the operating platform assembly 3 can be applied to can be expanded to a certain extent. Furthermore, the arrangement of the second telescopic member 322 and the second abutment member 323 can effectively cooperate with the lifting of the standard section 1. It should be noted that the length and width of the second bearing plate 321 are always smaller than the length and width inside the elevator shaft, so as to leave a certain gap so that steel ropes, pipes, etc. can extend out of the gap to the top of the elevator shaft.

[0045] In existing technologies, pre-drilled holes need to be made in the precast slab of the installation platform to allow the reinforcing bars to be inserted into the holes for the installation of the first platform 31. This is very inconvenient for the boom that needs to be lifted, as the operating platform must be disassembled before the boom can be lifted, and the pre-drilled holes need to be filled later. For high-rise buildings, this would undoubtedly result in a huge workload and delays in the construction period. In this embodiment, the operating platform component 3 is pre-fixed to the standard section 1, allowing it to be lifted along with the standard section 1 without disassembling the operating platform component 3, greatly improving work efficiency. Furthermore, by utilizing the aforementioned abutment and telescopic components, the operating platform component 3 can adapt to different elevator shaft sizes, and can be hoisted into the elevator shaft together with the standard section 1, where the telescopic and abutment components are used to further secure the platform.

[0046] Furthermore, for the first bearing plate 311 and the second bearing plate 321, several steel bars can be provided at the bottom of the first bearing plate 311 and the second bearing plate 321. These steel bars are arranged in an array on both the first bearing plate 311 and the second bearing plate 321, further improving their load-bearing capacity. The array arrangement of the steel bars includes both horizontal and vertical array arrangements, so that the steel bars intersect, thereby increasing the strength of the first bearing plate 311 and the second bearing plate 321.

[0047] It should also be noted that the first abutment member 313 and the second abutment member 323 have the same structure and principle, and only the structure of the first abutment member 313 will be briefly described below. The first abutment member 313 is a rigid component, U-shaped, like a claw, which can effectively abut against the inner wall of the elevator shaft. The U-shaped first abutment member 313 has a smaller contact area with the wall. Compared to a larger contact area with the wall, under the same abutting force, the U-shaped first abutment member 313 exerts greater pressure on the wall surface, resulting in greater friction and a more secure abutment between the first abutment member 313 and the wall. As for the first telescopic member 312 and the second telescopic member 322, since their structure and principle are the same, only the first telescopic member 312 will be briefly introduced below. The first telescopic component 312 can be telescopically extended in various ways, such as by using a pneumatic cylinder or a hydraulic cylinder. However, these methods are relatively complex in structure, and the environment inside a building elevator shaft is complex, with the risk of concrete pouring. Furthermore, it is suspended in mid-air, and the hydraulic cylinder is quite heavy. Therefore, in this embodiment, a lead screw is used to drive the extension and retraction of the first telescopic component 312. Specifically, the first telescopic component 312 has an external thread, and an internal thread that matches it is opened in the telescopic groove. The internal and external threads cooperate to realize the extension and retraction of the first telescopic component 312 relative to the first bearing plate 311. The structure is simple, has sufficient strength, and is not easily damaged.

[0048] Furthermore, each first support plate 311 is provided with at least two first telescopic members 312 and first abutting members 313. Similarly, each second support plate 321 is provided with at least two second telescopic members 322 and second abutting members 323.

[0049] In some embodiments, the operating platform for the protective shaft of the fabric placing machine also includes several rotating components 4. The standard section 1 has four supporting square legs 11, and several rotating components 4 are respectively disposed on the four supporting square legs 11. These rotating components 4 are rotatably connected to the first bearing plate 311 and the second bearing plate 321, allowing the first bearing plate 311 and the second bearing plate 321 to rotate towards the standard section 1 to accommodate them. Specifically, the first bearing plate 311 is rotatably connected to the rotating components 4. When the operating platform assembly 3 is not in use, the first rigid support member 33 can be detached from the first bearing plate 311, allowing the first bearing plate 311 to rotate from a horizontal state to a vertical state under gravity, so that the first bearing plate 311 is as close as possible to the standard section 1, saving space. Normally, it is not necessary to remove the first bearing plate 311 from the standard section 1 when not in use. Similarly, the connection method and rotation process of the second bearing plate 321 to the rotating components 4 are the same as those of the first bearing plate 311, and will not be described again.

[0050] To facilitate understanding by those skilled in the art of rotating assembly 4 and its working interaction with the support plate, rotating assembly 4 is described in detail below:

[0051] Please see Figure 5 and Figure 6 The rotating assembly 4 includes several connectors 41 and hinge ears 42. Each connector 41 includes a first plate 411 and a second plate 412. The standard section 1 has four supporting square legs 11. The first plate 411 and the second plate 412 of the connector 41 are connected in an L-shape and fixed to adjacent sides of one of the supporting square legs 11. Several hinge ears 42 are fixed to the outside of the first plate 411 and the second plate 412, specifically as follows... Figure 2 As shown. One hinge lug 42 on the connector 41 is rotatably connected to the first bearing plate 311, and the other hinge lug 42 is rotatably connected to the second bearing plate 321. The first plate 411 and the second plate 412 are fixed to the square leg 11 by bolts, and the hinge lug 42 is also connected to the first plate 411 and the second plate 412 by bolts or integrally formed.

[0052] Furthermore, two first slots 3111 are formed on one side of the first support plate 311, and a first connecting hole is formed along the arrangement direction of the two first slots 3111, penetrating the first support plate 311. The first connecting hole communicates with the two first slots 3111. The shape of the first slots 3111 matches the shape of the hinge ears 42. The two hinge ears 42 located on the two supporting square legs 11 are respectively set in the two first slots 3111. A hinge hole is formed on the hinge ear 42, and the first connecting hole communicates with the hinge hole on the hinge ear 42. The first rotating shaft 43 is inserted along the first connecting hole and the hinge hole. Through the cooperation of the hinge hole, the first connecting hole and the first rotating shaft 43, the function of the first support plate 311 rotating around the first rotating shaft 43 is realized. Similarly, for the second support plate 321, two second slots 3211 are opened on one side of the second support plate 321, and a second connecting hole is opened through the second support plate 321 along the arrangement direction of the two second slots 3211. The shape of the second slot 3211 matches the shape of the hinge ear 42. The two hinge ears 42 located on the two supporting square legs 11 are respectively set in the two second slots 3211. A hinge hole is opened on the hinge ear 42. The second connecting hole communicates with the hinge hole on the hinge ear 42. The second rotating shaft 44 is inserted along the second connecting hole and the hinge hole. Through the cooperation of the hinge hole, the first connecting hole and the first rotating shaft 43, the function of the first support plate 311 rotating around the first rotating shaft 43 is realized.

[0053] Furthermore, both the first bearing plate 311 and the second bearing plate 321 are arc-shaped on the side facing the standard section 1, and the curvature of the arc is consistent with the curvature of the outer edge of the hinge ear 42, so that the first bearing plate 311 and the second bearing plate 321 will not interfere with the connector 41 and the supporting square leg 11 when rotating, and minimize the gap between the first bearing plate 311, the second bearing plate 321 and the connector 41 respectively.

[0054] In some embodiments, each first platform 31 is connected to two first rigid support members 33, and each second platform 32 is connected to two second rigid support members 34. The first rigid support members 33 are rotatably connected to the standard section 1, and the second rigid support members 34 are rotatably connected to the standard section 1. The first rigid support members 33 and the second rigid support members 34 have the same structure and working principle. Only the first rigid support member 33 will be described in detail below. For the second rigid support member 34, please refer to the first rigid support member 33.

[0055] The first rigid support member 33 is made of structural steel, ensuring support strength while minimizing weight. The structure used for the rotatable connection between the first rigid support member 33 and the standard section 1 is the same as the aforementioned rotatable connection structure between the first bearing plate 311 and the rotating assembly 4. Both employ a hinge lug 42, a rotating shaft, and a through hole corresponding to the hinge lug 42 on the first rigid support member 33. The rotating shaft passes through the through hole, hinge the hinge lug 42 to the first rigid support member 33, and thus allow the first rigid support member 33 to rotate. By setting the first rigid support member 33 as a rotatable connection, the number of times the first rigid support member 33 is installed can be effectively reduced. When the placing boom is not in use, only the connection between the first rigid support member 33 and the first bearing plate 311 needs to be disassembled. Both the first rigid support member 33 and the first bearing plate 311 will then be subjected to gravity and rotate towards the standard section 1, falling to one side of the standard section 1.

[0056] Furthermore, for the first rigid support member 33, at least two first rigid support members 33 are connected to each first bearing plate 311, and the two first rigid support members 33 are respectively disposed on the two supporting square legs 11 to ensure the force balance of the first bearing plate 311; similarly, for the second rigid support member 34, at least two second rigid support members 34 are connected to each second bearing plate 321, and the two second rigid support members 34 are respectively disposed on the two supporting square legs 11 to ensure the force balance of the second bearing plate 321.

[0057] In some embodiments, both ends of the horizontal square tube 21 and both ends of the vertical square tube are provided with wooden blocks and I-beams.

[0058] In some embodiments, see Figure 7 The vertical square tube steel pipe 22 includes a square tube main pipe 221 and a square tube sub-pipe 222. One end of the square tube main pipe 221 is fitted with the square tube sub-pipe 222. The square tube sub-pipe 222 can extend and retract along the length of the square tube main pipe 221 and is fixed to the square tube main pipe 221 by bolts or pins. Similarly, the horizontal square tube steel pipe 21 has the same structure as the vertical square tube steel pipe 22, or the horizontal square tube steel pipe 21 does not have the square tube sub-pipe 222 structure, is not extendable, and is not limited. When the tower crane lifts the already connected base assembly 2 and standard section 1 into the elevator shaft and places them in place, the square tube sub-pipe 222 is pulled out from the square tube main pipe 221 and inserted into the reserved opening. The base is then fixed to the structural slab of the N-2 floor using steel pipe fasteners. A grid frame is erected using steel pipes and right-angle fasteners, and a 15mm thick template is laid on top, completing the initial fixing of the standard section 1 in the elevator shaft. By setting up the square tube sub-pipe 222 and the square tube main pipe 221, the base assembly 2 can be fixed to the standard section 1 first, and then lifted into the elevator shaft by the tower crane. The length of the square tube steel pipe can then be changed to adapt to different elevator shaft sizes and reduce the number of tower crane operations.

[0059] In some embodiments, the distance between the side of the first support plate 311 near the inner wall of the elevator shaft and the side of the second support plate 321 near the inner wall of the elevator shaft and the inner wall of the elevator shaft is not less than 300mm, providing sufficient space for workers to perform lifting operations and install and fix some steel bars, conveying pipes, etc. The Nth floor uses leftover formwork, square timber, etc. from the construction site for fixing, so as to achieve the secondary utilization of waste materials.

[0060] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0061] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0062] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0063] For each patent, patent application, patent application publication, and other material such as articles, books, specifications, publications, and documents referenced in this application, the entire contents of that patent application are incorporated herein by reference, except for historical application documents that are inconsistent with or conflict with the content of this application, and documents that limit the broadest scope of the claims of this application (currently or subsequently appended to this application). It should be noted that if there are any inconsistencies or conflicts between the descriptions, definitions, and / or terminology used in the supplementary materials of this application and the content of this application, the descriptions, definitions, and / or terminology used in this application shall prevail.

[0064] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A protective operating platform for a concrete placing boom elevator shaft, used in conjunction with a concrete placing boom, wherein the concrete placing boom includes a standard section, the standard section being fixed inside the elevator shaft, characterized in that... The protective operating platform for the concrete placing machine elevator shaft includes a base assembly and an operating platform assembly. The base assembly is located below the operating platform assembly, and the standard section is fixed to the base assembly. The base assembly includes two horizontal square steel pipes and two vertical square steel pipes. The horizontal square steel pipes and the vertical square steel pipes are cross-fixed to form a grid-shaped fixing structure. The two ends of the horizontal square steel pipes and the two ends of the vertical square steel pipes are respectively inserted into the reserved openings in the elevator shaft for fixing. The bottom of the standard section is fixed to the horizontal square steel pipes and the vertical square steel pipes. The operating platform assembly includes two first platforms, two second platforms, a plurality of first rigid support members, and a plurality of second rigid support members. The first platforms, second platforms, and rigid support members are all detachably connected to the standard section. The two first platforms are arranged opposite to each other, and the two second platforms are arranged opposite to each other. The first platforms and second platforms surround and fix the standard section. The side of the first platform and the second platform away from the standard section abuts against the inner wall of the elevator shaft. One end of the first rigid support member is fixed to the standard section, and the other end abuts against the first platform to support the first platform. One end of the second rigid support member is fixed to the standard section, and the other end abuts against the second platform to support the second platform.

2. The protective operating platform for a concrete placing boom elevator shaft according to claim 1, characterized in that, The first platform includes a first support plate, a first telescopic member, and a first abutting member. The first telescopic member is located on the side of the first support plate away from the standard section. The first abutting member is connected to the first telescopic member. The first telescopic member can extend and retract along the direction of the first support plate toward the inner wall of the elevator shaft, thereby moving the first abutting member so that the first abutting member abuts against the inner wall of the elevator shaft. The second platform includes a second support plate, a second telescopic member, and a second abutment member. The second telescopic member is located on the side of the second support plate away from the standard section. The second abutment member is connected to the second telescopic member. The second telescopic member can extend and retract along the direction of the second support plate toward the inner wall of the elevator shaft, thereby moving the second abutment member to abut against the inner wall of the elevator shaft.

3. The protective operating platform for a concrete placing boom elevator shaft according to claim 2, characterized in that, The protective operating platform for the concrete placing machine elevator shaft also includes several rotating components. The standard section has four supporting square legs. The several rotating components are respectively disposed on the four supporting square legs, and the several rotating components are respectively rotatably connected to the first bearing plate and the second bearing plate, so that the first bearing plate and the second bearing plate can rotate toward the standard section to accommodate the first bearing plate and the second bearing plate.

4. The protective operating platform for a concrete placing boom elevator shaft according to claim 3, characterized in that, The rotating assembly includes several connectors and hinge ears. The connectors include a first plate and a second plate. The first plate and the second plate are connected in an L-shape and are respectively fixed to the adjacent sides of one of the supporting square legs. The hinge ears are fixed to the first plate and the second plate.

5. The protective operating platform for a concrete placing boom elevator shaft according to claim 4, characterized in that, The first support plate has two first slots on one side and a first connecting hole penetrating the first support plate along the arrangement direction of the two first slots. The shape of the first slot matches the shape of the hinge ear. The two hinge ears located on the two supporting square legs are respectively disposed in the two first slots. The hinge ears are provided with hinge holes. The first connecting hole communicates with the hinge hole on the hinge ear. A first rotating shaft is inserted along the first connecting hole and the hinge hole. The second support plate has two second slots on one side and a second connecting hole penetrating the second support plate along the arrangement direction of the two second slots. The shape of the second slot matches the shape of the hinge ear. The two hinge ears located on the two supporting square legs are respectively disposed in the two second slots. The hinge ears are provided with hinge holes. The second connecting hole communicates with the hinge hole on the hinge ear. A second rotating shaft is inserted along the second connecting hole and the hinge hole.

6. The protective operating platform for a concrete placing boom elevator shaft according to claim 1, characterized in that, Each of the first platforms is connected to two first rigid support members, and each of the second platforms is connected to two second rigid support members. The first rigid support members are rotatably connected to the standard section, and the second rigid support members are rotatably connected to the standard section.

7. The protective operating platform for a concrete placing boom elevator shaft according to claim 1, characterized in that, Both ends of the horizontal square steel pipe and both ends of the vertical square steel pipe are provided with wooden blocks and I-beams.

8. The protective operating platform for a concrete placing boom elevator shaft according to claim 1, characterized in that, The vertical square tube includes a main square tube and a sub-square tube. The sub-square tube is sleeved at one end of the main square tube. The sub-square tube can extend and retract along the length of the main square tube and is fixed to the main square tube by bolts or pins.

9. A protective operating platform for a concrete placing boom elevator shaft according to claim 2, characterized in that, Both the first platform and the second platform further include a plurality of steel bars, which are arranged in an array below the first support plate and the second support plate, respectively.

10. A protective operating platform for a concrete placing boom elevator shaft according to claim 2, characterized in that, The distance between the side of the first support plate near the inner wall of the elevator shaft and the side of the second support plate near the inner wall of the elevator shaft and the inner wall of the elevator shaft is not less than 300mm.

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