Installation method for horizontal protection of assembled elevator hoistway

Abstract

The invention discloses an assembly type elevator shaft horizontal protection installation method. The method comprises the steps that S1, an adjustable main beam and a foldable protection panel assembly are machined and manufactured; s2, a bolt sleeve is embedded in the construction stage of the main body structure; s3, the adjustable main beam system is installed; s4, the foldable protective panels are spliced; and S5, the edge protection device is arranged, through standardized prefabrication, modular adjustment and assembly type installation, the construction safety and economical efficiency are remarkably improved, and the method is suitable for horizontal protection engineering of various building elevator hoistways.

Description

Technical Field

[0001] The technical field involved in the present invention, in particular, relates to an installation method for the horizontal protection of an assembled elevator shaft. Background Art

[0002] Triangular support type horizontal protection system: Use steel pipe fasteners to build a triangular load-bearing bracket inside the shaft cylinder, and form a planar protection layer through the hinged connection of diagonal members and horizontal crossbars. This system has problems such as complex node structures and redundant force transmission paths. Especially in large-span shafts, due to the too large inclination angle of the support members, the horizontal stiffness is insufficient, and the measured bearing capacity is less than 70% of the design value. Moreover, the fastener connection requires repeated manual tightening, posing a safety hazard for high-altitude operations;

[0003] Floor-standing scaffolding protection platform: Suitable for low-rise frame structure elevator shafts, a closed operation platform is built through a full hall of steel pipe scaffolding. In this scheme, the verticality deviation of the vertical poles often exceeds the allowable value of the specification (>1 / 500H), and the cumulative erection error leads to the over-limit of the platform levelness (more than ±15mm). Moreover, the material consumption is 2-3 times that of the conventional shaft protection, with poor economy. At the same time, the densely arranged vertical poles seriously hinder the cross-construction of other processes inside the shaft. Summary of the Invention

[0004] In view of this, the present invention provides an installation method for the horizontal protection of an assembled elevator shaft.

[0005] The installation method for the horizontal protection of an assembled elevator shaft provided by the present invention adopts the following technical solutions:

[0006] An installation method for the horizontal protection of an assembled elevator shaft includes the following steps:

[0007] S1: Process and manufacture adjustable main beams and foldable protection panel assemblies;

[0008] S2: Embed bolt sleeves during the main structure construction stage;

[0009] S3: Install the adjustable main beam system;

[0010] S4: Assemble the foldable protection panels;

[0011] S5: Set up edge protection devices.

[0012] Optionally, step S1 includes:

[0013] S1.1: Manufacture adjustable main beams, and connect two square steels of different sizes through bolt holes with a spacing of 300mm;

[0014] S1.2: Process rotating bolt fixings, and plug-weld the square bolt fixing plate and the circular bolt fixing plate;

[0015] S1.3: Make bolt fixing plates, using semicircular steel plates welded to the ends of the main beams;

[0016] S1.4: Assemble the foldable protective panel and weld the aluminum alloy square steel beams and the steel mesh surface into shape.

[0017] Optionally, the production of a rotating bolt fixing includes:

[0018] S1.2.1: Machine Φ16-20mm bolt holes on the square bolt fixing plate;

[0019] S1.2.2: Plug weld the circular bolt fixing plate and the square plate coaxially, with the weld height ≥ 4 mm;

[0020] S1.2.3: The diameter of the circular plate is 10-15 mm larger than the side length of the square plate.

[0021] Optionally, step S2 includes:

[0022] S2.1: Locate the embedded points on both sides of the structural beam or cylinder wall;

[0023] S2.2: Install the bolt sleeve to maintain the height difference between the two sides;

[0024] S2.3: The casing axis forms an inclined angle with the horizontal plane to form an oblique horizontal protection;

[0025] S2.4: The casing is fixed to the main reinforcement by welding.

[0026] Optionally, step S3 includes:

[0027] S3.1: Connect the main beam rotating bolt fixings with the embedded bolts;

[0028] S3.2: Adjust the horizontality of the main beam by fixing bolts;

[0029] S3.3: Two main beams shall be provided at each hoistway door opening.

[0030] Optionally, step S4 includes:

[0031] S4.1: Raise the folding protective panel to the installation height;

[0032] S4.2: Expand the panels so that the steel mesh overlaps the cylinder wall;

[0033] S4.3: Butt joint with the bolt holes of the main beam through the connecting parts;

[0034] S4.4: Use bolted connections.

[0035] Optionally, the connecting member is a U-shaped hanger connecting member, which includes a circular sleeve, an angle steel and a round steel. An installation part for installing the circular sleeve is formed between the angle steel and the round steel, and the top of the circular sleeve extends out of the round steel.

[0036] Optionally, the installation of the U-shaped hanger connecting member includes:

[0037] S4.3.1: Pass the round steel through the circular sleeve;

[0038] S4.3.2: Weld and fix the angle steel to the round steel;

[0039] S4.3.3: The rotation angle adjustment range of the U-shaped hanger connecting member is 0 - 90°.

[0040] Optionally, step S5 includes:

[0041] S5.1: Install the railing posts;

[0042] S5.2: Install the edge protection railing;

[0043] S5.3: Detect that the flatness deviation of the overall protection device is ≤ 3 mm / m.

[0044] In summary, the present invention includes at least one of the following beneficial technical effects: This patent can solve the problems of non-standard installation of the horizontal protection in the elevator shaft, high danger during the implementation process, and unreliable horizontal installation of the cylinder body by using the pre-embedded sleeve bolts on the shaft structure. This patent uses modular assembly for the horizontal protection of the shaft, which is simple to disassemble and install, safe to operate, and the horizontal protection is reliably installed, greatly avoiding the safety risks during the installation and use process. Description of the Drawings

[0045] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0046] Figure 1 It is a schematic diagram of the elevator shaft horizontal protection installation structure according to the embodiment of the present invention;

[0047] Figure 2 It is a schematic diagram of the adjustable main beam structure according to the embodiment of the present invention Figure 1 ;

[0048] Figure 3 It is a schematic diagram of the adjustable main beam structure according to the embodiment of the present invention Figure 2 ;

[0049] Figure 4 It is a schematic structural view of the bolt fixing plate according to an embodiment of the present invention;

[0050] Figure 5 It is a schematic structural view of the rotary bolt fixing member according to an embodiment of the present invention;

[0051] Figure 6 It is a plan view of the protective panel according to an embodiment of the present invention;

[0052] Figure 7 It is a sectional view taken along line 1-1 of the protective panel according to an embodiment of the present invention;

[0053] Figure 8 It is a sectional view taken along line 2-2 of the protective panel according to an embodiment of the present invention;

[0054] Figure 9 It is a schematic structural view of the channel-shaped hanging plate connecting member according to an embodiment of the present invention.

[0055] Explanation of reference numerals: 1, adjustable main beam; 2, foldable protective panel; 3, rotary bolt fixing member; 4, bolt fixing plate; 5, circular bolt fixing plate; 6, square bolt fixing plate; 7, aluminum alloy square steel cross beam; 8, channel-shaped hanging plate connecting member; 9, steel mesh surface; 11, circular sleeve; 12, angle steel. Specific embodiments

[0056] The following specifically describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0057] The following will further describe the present invention in detail Figures 1-9 in conjunction with the appended

[0058] An embodiment of the present invention discloses an installation method for the horizontal protection of an assembled elevator shaft.

[0059] Referring to Figures 1-9 , an installation method for the horizontal protection of an assembled elevator shaft includes the following construction steps:

[0060] S1: Fabricate the adjustable main beam 1 and the foldable protective panel 2 assembly;

[0061] S1.1: Fabricate the adjustable main beam 1 by connecting two square steels of different sizes through bolt holes with a spacing of 300 mm;

[0062] S1.2: Machine the rotary bolt fixing member 3, and plug weld the square bolt fixing plate 6 and the circular bolt fixing plate 5;

[0063] Among them, the fabrication of the rotary bolt fixture 3 includes:

[0064] S1.2.1: Machine bolt holes with a diameter of Φ16 - 20 mm on the square bolt fixing plate 6;

[0065] S1.2.2: Plug - weld the circular bolt fixing plate 5 and the square plate coaxially, with the weld height ≥ 4 mm;

[0066] S1.2.3: The diameter of the circular plate is 10 - 15 mm larger than the side length of the square plate.

[0067] S1.3: Fabricate the bolt fixing plate 4 by welding a semi - circular steel plate to the end of the main beam;

[0068] S1.4: Assemble the foldable protective panel 2 by welding the aluminum alloy square steel cross - beams 7 and the steel mesh surface 9.

[0069] S2: Embed bolt sleeves during the main structure construction stage;

[0070] S2.1: Locate the embedded points on both sides of the structural beam or the cylindrical wall;

[0071] S2.2: Install the bolt sleeves, maintaining the height difference on both sides;

[0072] S2.3: The axis of the sleeve forms an inclined angle with the horizontal plane to form an inclined horizontal protection;

[0073] S2.4: Weld and fix the sleeve to the main reinforcement bars.

[0074] S3: Install the adjustable main beam 1 system;

[0075] S3.1: Connect the rotary bolt fixture 3 of the main beam to the embedded bolt;

[0076] S3.2: Adjust the level of the main beam through the fixing bolts;

[0077] S3.3: Set two main beams at each hoistway door opening.

[0078] S4: Assemble the foldable protective panel 2;

[0079] S4.1: Lift the folded protective panel to the installation height;

[0080] S4.2: Unfold the panel so that the steel mesh surface 9 overlaps the cylindrical wall;

[0081] S4.3: Connect it to the bolt holes of the main beam through the connecting parts;

[0082] S4.3.1: Pass the round steel through the circular sleeve 11;

[0083] S4.3.2: Weld and fix the angle steel 12 to the round steel;

[0084] S4.3.3: The rotation angle adjustment range of the U-shaped hanger connector 8 is 0 - 90°;

[0085] S4.4: Adopt bolt fastening connection.

[0086] S5: Set up edge protection devices;

[0087] S5.1: Install railing columns;

[0088] S5.2: Install edge protection railings;

[0089] S5.3: Detect that the flatness deviation of the overall protection device is ≤ 3 mm / m.

[0090] When processing and manufacturing the adjustable main beam 1 and the foldable protection panel 2 components, the adjustable main beam 1 can be connected through bolt holes with square steel of different sizes, and the spacing of the bolt holes can be set to 300 mm. The assembly of the foldable protection panel 2 can be realized by welding the aluminum alloy square steel cross beams 7 and the steel mesh surface 9. The installation of the embedded bolt sleeves requires positioning the embedded points on both sides of the structural beam or the cylinder wall, and ensuring that the axis of the sleeve forms an inclined angle with the horizontal plane to form an inclined horizontal protection. When installing the adjustable main beam 1 system, the main beam rotation bolt fixture 3 is connected to the embedded bolt, and the horizontal degree of the main beam is adjusted through the fixing bolts. Two main beams are set at each hoistway door opening. When assembling the foldable protection panel 2, lift the folded protection panel to the installation height, unfold the panel so that the steel mesh surface 9 overlaps the cylinder wall, and dock it with the bolt holes of the main beam through the connector, and adopt bolt fastening connection. When setting up the edge protection device, install the railing columns and the edge protection railings, and detect the flatness deviation of the overall protection device to ensure that the deviation does not exceed 3 mm / m.

[0091] Through the modular design and installation steps, the problems existing in the traditional triangular support type horizontal protection system and the floor-standing scaffolding protection platform, such as complex node structures, redundant force transmission paths, insufficient horizontal stiffness, low bearing capacity, and safety hazards in high-altitude operations, are effectively solved. The design of the adjustable main beam 1 and the foldable protection panel 2 makes the installation process more flexible and efficient, and the installation of the embedded bolt sleeves and the main beam system ensures the stability and reliability of the protection structure. The steps of assembling the foldable protection panel 2 and setting up the edge protection device further improve the integrity and safety of the protection device. Compared with the existing technology, this technical solution has the advantages of simple installation, stable structure, high safety, and strong adaptability, and can meet the protection requirements of different hoistway structures.

[0092] In this embodiment, when fabricating the adjustable main beam 1, two square steels with different sizes are connected through bolt holes with a spacing of 300 mm. When machining the rotary bolt fixture 3, the square bolt fixing plate 6 and the circular bolt fixing plate 5 are connected by plug welding. When fabricating the bolt fixing plate 4, a semi-circular steel plate is welded to the end of the main beam. When assembling the foldable protective panel 2, the aluminum alloy square steel cross-beams 7 and the steel mesh surface 9 are welded into shape.

[0093] Specifically, the fabrication of the rotary bolt fixture 3 includes machining bolt holes with a diameter of Φ16 - 20 mm on the square bolt fixing plate 6, coaxial plug welding the circular bolt fixing plate 5 to the square plate, with the weld height not less than 4 mm, and the diameter of the circular plate being 10 - 15 mm larger than the side length of the square plate. These steps ensure the stability and reliability of the rotary bolt fixture 3.

[0094] In this regard, by optimizing the fabrication process of the rotary bolt fixture 3, the problems of complex node structures and redundant force transmission paths in the prior art are solved. Through precise dimensional control and welding processes, the strength and stiffness of the rotary bolt fixture 3 are ensured, thereby improving the stability and safety of the overall protection system. Compared with the prior art, this solution simplifies the node structure, reduces the redundancy of the force transmission path, improves the construction efficiency, and reduces the safety hazards of high-altitude operations.

[0095] In this embodiment, the fabrication of the rotary bolt fixture 3 includes machining bolt holes with a diameter of Φ16 - 20 mm on the square bolt fixing plate 6, coaxial plug welding the circular bolt fixing plate 5 to the square plate, with the weld height ≥ 4 mm, and the diameter of the circular plate being 10 - 15 mm larger than the side length of the square plate.

[0096] Specifically, machining bolt holes with a diameter of Φ16 - 20 mm on the square bolt fixing plate 6 ensures that the size of the bolt holes meets the standards, facilitating subsequent bolt connections. Coaxial plug welding the circular bolt fixing plate 5 to the square plate with a weld height ≥ 4 mm guarantees the firmness of the welding and improves the stability of the structure. The design that the diameter of the circular plate is 10 - 15 mm larger than the side length of the square plate enables the circular plate to better cover the square plate, increasing the connection strength and stability.

[0097] Thus, this technical solution solves the problems of loose connection and poor stability existing in the fabrication process of the rotary bolt fixture 3 in the prior art through precise machining and welding steps. Compared with the prior art, this solution significantly improves the connection strength and stability of the rotary bolt fixture 3 by optimizing the size of the bolt holes and the welding process, thereby ensuring the safety and reliability of the overall structure.

[0098] In this embodiment, embedded points are located on both sides of the structural beam or cylinder wall, bolt sleeves are installed, the height difference on both sides is maintained, the sleeve axis is inclined at an angle to the horizontal plane to form an oblique horizontal protection, and the sleeve is welded and fixed to the main reinforcement.

[0099] Specifically, when locating the embedded points on both sides of the structural beam or cylinder wall, it is necessary to ensure that the embedded points are accurately located so that the bolt sleeves can be installed later. During the installation of the bolt sleeves, the height difference on both sides must be maintained to ensure the stability of the protection system. The axis of the sleeve is at an inclined angle to the horizontal plane. This design helps to form oblique horizontal protection and improve the overall rigidity of the protection system. The sleeve is welded and fixed to the main reinforcement to ensure a firm connection and prevent the sleeve from loosening or falling off due to external forces.

[0100] As a preferred implementation, the positioning of the embedded point can be accurately measured by a laser locator to ensure that the position error of the embedded point is controlled within the allowable range. During the installation of the bolt sleeve, a level can be used to adjust the height difference to ensure that the height difference on both sides is consistent. The welding of the sleeve and the main reinforcement can be carried out by carbon dioxide gas shielded welding to ensure the welding quality and improve the reliability of the connection.

[0101] Therefore, through precise pre-embedded point positioning, height difference adjustment, tilt angle design and firm welding fixation, the problems of insufficient rigidity and loose connection of the protection system in the existing technology are effectively solved. Compared with the existing technology, it has higher stability and reliability and can better meet the actual engineering needs.

[0102] In this embodiment, in the method for installing horizontal protection of an assembled elevator shaft, step S3 includes the following contents: connecting the main beam rotating bolt fixing part 3 with the embedded bolts, adjusting the horizontality of the main beam by the fixing bolts, and setting two main beams for each shaft door opening.

[0103] Specifically, the connection method between the main beam rotating bolt fixing part 3 and the embedded bolt can be achieved by docking the bolt hole on the rotating bolt fixing part 3 with the embedded bolt to ensure a stable connection. The adjustment function of the fixing bolt is to adjust the horizontality of the main beam by rotating the fixing bolt to meet the design requirements. The design of setting two main beams for each well door opening can effectively disperse the load and improve the stability of the overall structure.

[0104] As a preferred embodiment, the production of the main beam rotating bolt fixing member 3 includes machining a Φ16-20 mm bolt hole on the square bolt fixing plate 6, plug welding the circular bolt fixing plate 5 and the square plate coaxially, with the weld height ≥4 mm, and the diameter of the circular plate being 10-15 mm longer than the side length of the square plate. This design ensures the strength and stability of the fixing member and facilitates the connection with the embedded bolts.

[0105] Thus, through the connection between the main beam rotating bolt fixture 3 and the embedded bolt, and the adjustment of the fixing bolt, the precise control of the horizontal degree of the main beam is achieved, solving the problem of insufficient horizontal stiffness in the existing horizontal protection system due to complex node structures and redundant force transmission paths. Compared with the existing technology, it has the advantages of simple structure, convenient installation, and high stability, and can effectively improve the safety and reliability of the shaft horizontal protection.

[0106] In this embodiment, the folding protection panel is lifted to the installation height, the panel is unfolded so that the steel mesh surface 9 overlaps the cylinder wall, and it is butt-jointed with the main beam bolt hole through the connecting piece, and bolt fastening connection is adopted.

[0107] During the implementation process, the lifting of the folding protection panel can be completed by lifting equipment such as tower cranes or electric hoists to ensure the stability of the panel during lifting. When the panel is unfolded, the overlap between the steel mesh surface 9 and the cylinder wall needs to ensure sufficient contact area to enhance the stability of the overall structure. The butt-joint between the connecting piece and the main beam bolt hole needs to be accurately aligned to ensure that the connecting piece can be smoothly inserted into the bolt hole. When bolt fastening connection is carried out, a torque wrench should be used for fastening to ensure that the connection strength meets the design requirements.

[0108] Specifically, the lifting height of the folding protection panel can be adjusted according to the actual height of the shaft, usually lifted to be flush with the installation position of the main beam. When the panel is unfolded, the overlap length between the steel mesh surface 9 and the cylinder wall should be not less than 100 mm to provide sufficient support area. During the butt-joint process between the connecting piece and the main beam bolt hole, the alignment can be ensured by adjusting the panel position or using a guiding device. When the bolts are fastened, they should be fastened according to the torque value required by the design, and anti-loosening measures should be adopted to prevent the bolts from loosening.

[0109] Through steps such as lifting, unfolding, butt-jointing, and fastening, the rapid installation and reliable connection of the folding protection panel are achieved. Compared with the existing technology, this solution has the advantages of high installation efficiency, good connection strength, and high construction safety. Among them, the lifting and unfolding process of the folding protection panel simplifies the difficulty of high-altitude operations and reduces the construction risk. The butt-joint method between the connecting piece and the main beam bolt hole improves the installation accuracy and ensures the stability of the overall structure. The bolt fastening connection further enhances the bearing capacity of the protection panel and improves the protection effect.

[0110] In this embodiment, the installation method of the U-shaped hanger connector 8. The U-shaped hanger connector 8 includes a circular sleeve 11, an angle steel 12 and a round steel. An installation part for installing the circular sleeve 11 is formed between the angle steel 12 and the round steel, and the top of the circular sleeve 11 extends out from the round steel. Specifically, the installation steps include: passing the round steel through the circular sleeve 11; welding and fixing the angle steel 12 to the round steel; the rotation angle adjustment range of the U-shaped hanger connector 8 is 0 - 90°. As a preferred implementation manner, the diameter of the round steel can be adjusted according to actual requirements to ensure the stability of the connection. The size and thickness of the angle steel 12 can also be optimized according to specific application scenarios to enhance the load-bearing capacity of the overall structure.

[0111] By adopting the U-shaped hanger connector 8, the rapid installation and adjustment of the foldable protective panel 2 are realized. Among them, the design of the circular sleeve 11 enables the connector to rotate at different angles, so as to adapt to the complex installation environment in the shaft. The welding and fixing method of the angle steel 12 and the round steel ensures the stability and reliability of the connector, avoiding the problem that traditional fastener connections require repeated manual tightening. Thus, this technical solution not only simplifies the installation process, but also improves the construction efficiency, while reducing the safety hazards of high-altitude operations. Compared with the prior art, while ensuring the structural strength, it significantly improves the convenience and safety of installation.

[0112] In this embodiment, the installation of the U-shaped hanger connector 8 includes: passing the round steel through the circular sleeve 11; welding and fixing the angle steel 12 to the round steel; the rotation angle adjustment range of the U-shaped hanger connector 8 is 0 - 90°.

[0113] Specifically, in the operation of passing the round steel through the circular sleeve 11, the diameter of the round steel matches the inner diameter of the circular sleeve 11 to ensure that the round steel can rotate freely within the sleeve while maintaining sufficient connection strength. The welding and fixing of the angle steel 12 to the round steel adopt the full-welding method, and the weld height is not less than 4 mm to ensure the overall stability of the connector. The rotation angle adjustment range of the U-shaped hanger connector 8 is set to 0 - 90°. By adjusting the rotation angle, it can meet the requirements of different installation positions, improving the flexibility and applicability of installation.

[0114] In this regard, through the design of the U-shaped hanger connector 8, the problems of traditional connectors with fixed installation angles and poor adaptability are solved. Among them, the matching design of the circular sleeve 11 and the round steel enables the connector to adjust the angle during the installation process, so as to meet the installation requirements of different shaft structures. The welding and fixing of the angle steel 12 and the round steel further enhance the overall stability of the connector, avoiding the problem that traditional fastener connections require repeated tightening, and reducing the safety hazards of high-altitude operations. Thus, while ensuring the connection strength, it improves the installation efficiency and safety, and is applicable to the horizontal protection installation of various shaft structures.

[0115] In this embodiment, railing columns are installed, and edge protection railings are installed. The flatness deviation of the overall protection device is detected to be ≤ 3 mm / m. Among them, the railing columns are installed by fixing with embedded bolts to ensure that the verticality of the columns meets the specification requirements. The edge protection railings are installed by bolt connection, and the railings and columns are fixed through connectors to ensure the stability of the overall structure. When detecting the flatness deviation of the overall protection device, a level is used for measurement to ensure that the deviation is controlled within 3 mm / m to meet the safety protection requirements.

[0116] Specifically, the installation steps of the railing columns include fixing bolts at the embedded points, vertically installing the columns on the bolts, and tightening them with nuts. The installation steps of the edge protection railings include docking the railings and columns through connectors and fixing them with bolts to ensure firm connection. When detecting the flatness deviation, a level is used to measure at different positions of the protection device to ensure that the overall flatness meets the requirements.

[0117] Thus, by installing railing columns and edge protection railings and strictly controlling the flatness deviation, the problems of insufficient stability and low installation accuracy of the protection device in the prior art are effectively solved. Compared with the prior art, this solution improves the installation accuracy and stability of the protection device by means of embedded bolts and bolt connections, reduces the safety hazards of high-altitude operations, and at the same time, through the detection with a level, ensures that the flatness of the protection device meets the specification requirements, further enhancing the safety protection effect.

[0118] In this embodiment, in the installation method of the assembled elevator shaft horizontal protection, the installation steps of the edge protection device include: First, install railing columns; Second, install edge protection railings; Finally, detect the flatness deviation of the overall protection device to ensure that the deviation does not exceed 3 mm / m.

[0119] During the implementation process, the installation of the railing columns needs to ensure their verticality and stability, and usually embedded parts or expansion bolts are used for fixation. The installation of the edge protection railings needs to be firmly connected to the columns, and usually bolts or welding methods are used to ensure that they can effectively prevent people or objects from falling. When detecting the flatness deviation of the overall protection device, a level or other measuring tools are used for accurate measurement to ensure that the deviation is within the allowable range to ensure the overall stability and safety of the protection device.

[0120] Specifically, the railing columns can be installed by connecting with the main structure through embedded parts. The embedded parts are pre-buried during the construction stage of the main structure to ensure the accuracy and firmness during the installation of the columns. The edge protection railings can be installed by bolt connection, which is convenient for disassembly and adjustment and at the same time ensures the firmness of the connection. When detecting the flatness deviation, a level is used for multi-point measurement to ensure that the overall levelness of the protection device meets the requirements.

[0121] Thus, through clear installation steps and precise detection methods, the problems of insecure installation and excessive flatness deviation of the edge protection device in the prior art are solved. Compared with the prior art, it has the advantages of simple installation, firm connection, and precise detection, can effectively improve the safety and stability of the edge protection device, and ensure safety during the construction process.

[0122] By processing and manufacturing the adjustable main beam 1 and the foldable protection panel 2 assembly, embedded bolt sleeves, installing the adjustable main beam 1 system, assembling the foldable protection panel 2, and setting up the edge protection device, the problems of complex node structure, redundant force transmission path, insufficient horizontal stiffness, large material consumption, and obstruction of cross-construction in the prior art are solved. It has the advantages of improving construction safety, simplifying the node structure, enhancing the horizontal stiffness, reducing material consumption, and facilitating cross-construction.

[0123] In this article, specific examples are used to elaborate on the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. The above is only the preferred implementation mode of the present invention. It should be noted that due to the limited nature of written expression and the objectively infinite specific structures, for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, should all be regarded as the protection scope of the present invention.

Claims

1. A method for installing horizontal protection of an assembled elevator shaft, characterized in that: The following steps are involved: S1: Processing and manufacturing an adjustable main beam (1) and a foldable protective panel (2) assembly; S2: Pre-embed bolt sleeves during the main structure construction stage; S3: Install the adjustable main beam system; S4: Assembling foldable protective panels; S5: Install edge protection devices.

2. The method for installing horizontal protection for an assembled elevator shaft according to claim 1, characterized in that: Step S1 includes: S1.1: Make an adjustable main beam (1) by connecting two square steel bars of different sizes through bolt holes spaced 300 mm apart; S1.2: Process the rotating bolt fixing part (3) and connect the square bolt fixing plate (6) and the circular bolt fixing plate (5) by plug welding; S1.3: Make a bolt fixing plate (4) by welding a semicircular steel plate to the end of the main beam; S1.4: Assemble the foldable protective panel (2) and weld the aluminum alloy square steel beam (7) and the steel mesh surface (9) into shape.

3. The method for installing horizontal protection for an assembled elevator shaft according to claim 2, characterized in that: The production of the rotating bolt fixing member (3) includes: S1.2.1: Process Φ16-20mm bolt holes on the square bolt fixing plate (6); S1.2.2: Plug weld the circular bolt fixing plate (5) and the square plate coaxially, with the weld height ≥ 4 mm; S1.2.3: The diameter of the circular plate should be 10-15 mm larger than the side length of the square plate.

4. The method for installing horizontal protection for an assembled elevator shaft according to claim 1, characterized in that: Step S2 includes: S2.1: Locate the embedded points on both sides of the structural beam or cylinder wall; S2.2: Install the bolt sleeve to maintain the height difference between the two sides; S2.3: The casing axis forms an inclined angle with the horizontal plane to form an oblique horizontal protection; S2.4: The casing is fixed to the main reinforcement by welding.

5. The method for installing horizontal protection for an assembled elevator shaft according to claim 2, characterized in that: Step S3 includes: S3.1: Connect the main beam rotating bolt fixing member (3) with the embedded bolts; S3.2: Adjust the horizontality of the main beam by fixing bolts; S3.3: Two main beams shall be provided at each hoistway door opening.

6. The method for installing horizontal protection for an assembled elevator shaft according to claim 1, characterized in that: Step S4 includes: S4.1: Lift the foldable protective panel (2) to the installation height; S4.2: unfold the panel so that the steel mesh surface (9) overlaps the cylinder wall; S4.3: Butt joint with the bolt holes of the main beam through the connecting parts; S4.4: Use bolted connections.

7. The method for installing horizontal protection for an assembled elevator shaft according to claim 3, characterized in that: The connecting piece is an I-shaped hanging plate connecting piece (8), which comprises a circular sleeve (11), an angle steel (12) and a round steel (13). An installation portion for installing the circular sleeve (11) is formed between the angle steel (12) and the round steel (13), and the top of the circular sleeve (11) protrudes from the round steel (13).

8. The method for installing horizontal protection for an assembled elevator shaft according to claim 7, characterized in that: The installation of the "X"-shaped hanging plate connecting piece (8) includes: S4.3.1: Pass the round steel (13) through the circular sleeve (11); S4.3.2: Weld the angle steel (12) to the round steel; S4.3.3: The rotation angle adjustment range of the "X"-shaped hanging plate connector is 0-90°.

9. The method for installing horizontal protection for an assembled elevator shaft according to claim 1, characterized in that: Step S5 includes: S5.1: Install railing posts; S5.2: Install edge guardrails; S5.3: Check that the flatness deviation of the overall protective device is ≤3mm / m.

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