A rigid landfill site modular safety platform

By designing a modular safety work platform, the problems of limited operating range and complex connections of ladders in existing construction are solved, enabling rapid assembly and disassembly and improving safety, making it suitable for rigid landfill construction.

CN224532181UActive Publication Date: 2026-07-21TIANJIN JIANCHANG ENVIRONMENTAL PROTECTION
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN JIANCHANG ENVIRONMENTAL PROTECTION
Filing Date
2025-09-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing rigid landfill construction, ladders have a small operating range and pose safety hazards, and the connection process is complex, affecting construction efficiency and safety.

Method used

Design a modular safety work platform comprising multiple modular modules arranged parallel to each other in a vertical direction. Each module consists of a column, a workbench, and a locking assembly. The locking assembly enables quick connection and disassembly of the column and the workbench. Combined with tie rods, telescopic ladders, and guardrails, safety and convenience are enhanced.

Benefits of technology

It enables rapid assembly and disassembly at any height, enhancing construction safety and ease of operation, reducing construction space occupation, and improving construction efficiency and safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224532181U_ABST
    Figure CN224532181U_ABST
Patent Text Reader

Abstract

The utility model relates to rigid landfill field technical field, concretely relates to a rigid landfill field combined safety work platform, including stand, workstation and locking assembly, the stand has four, four stands vertical setting in the four corner positions of workstation, the workstation with the contact position of stand all is provided with a locking assembly and support crossbeam, the locking assembly sets up the stand, the support crossbeam sets up the workstation, the locking assembly is locked stand with workstation through the support crossbeam, the locking assembly includes with the longitudinal locking portion of locking of stand and with the horizontal locking portion of locking of support crossbeam, the longitudinal locking portion includes through the openable and closeable lock fastening in the stand side, the horizontal locking portion is buckled in the support crossbeam through the openable and closeable lock, realize the fastening of workstation with any height, suitable for any floor height, and locking assembly greatly promotes assembly work efficiency and module integral firmness.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of rigid landfill technology, specifically to a combined safety working platform for rigid landfills. Background Technology

[0002] Rigid landfills are widely used in my country as an important method of solid waste disposal. Rigid landfills are often designed in a unitized manner to ensure the structural stability and safety of the landfill and reduce pollution to the surrounding environment. To improve the efficiency of loading and filling, the commonly used landfill units are designed with dimensions of 5*5*10 meters. However, with a depth of 10 meters within each unit, the construction of the base layer and the side walls of the pool are inconvenient. Currently, ladders are often hung on the pool walls of the landfill units, and construction workers stand on the ladders to carry out the work. However, this is inconvenient, the operating range is small, and the excessively long ladders pose safety hazards.

[0003] The standardized scaffolding disclosed in Announcement No. CN 222140623 U consists of individual frame connections. Within a 10-meter landfill pool, several individual frames need to be connected. There are many connection points, and the scaffolding is connected to the uprights by groove bolts. The connection process is complex and has certain drawbacks in terms of safety and stability, which affects the normal progress of construction. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a rigid landfill modular safety work platform to improve construction safety and facilitate installation and disassembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a modular safety working platform for rigid landfills, comprising: multiple modular components arranged parallel and spaced along the vertical direction;

[0007] Each assembly module includes a column, a worktable, and a locking assembly. There are four columns, which are vertically arranged at the four corners of the worktable. A locking assembly and a support beam are provided at the contact points between the worktable and the columns. The locking assembly is located on the column, and the support beam is located on the worktable. The locking assembly locks the column and the worktable together through the support beam.

[0008] The locking assembly includes a longitudinal locking part that locks to the column and a transverse locking part that locks to the support beam. The longitudinal locking part is fixed to the side of the column by an openable lock, and the transverse locking part is fastened to the support beam by an openable lock.

[0009] In some embodiments, the longitudinal locking part includes a longitudinal side plate, a longitudinal cover plate, and a first locking plate. The longitudinal side plate has three pieces, which are vertically connected end to end to form a U-shaped groove with an opening facing the column. The longitudinal cover plate has two pieces, which are rotatably mounted on two opposite longitudinal side plates. Each longitudinal cover plate is provided with a first locking plate at a position close to each other. The two longitudinal cover plates are used to seal the U-shaped groove and to make the two first locking plates contact each other and be fixed and locked by bolts to lock the longitudinal locking part to the column.

[0010] In some embodiments, the transverse locking part includes a transverse side plate, a transverse bottom plate, an L-shaped cover plate, and a second locking plate. The transverse side plate is perpendicular to and fixedly connected to the longitudinal side plate. The transverse bottom plate is fixedly connected to the transverse side plate and is also perpendicular to and fixedly connected to the longitudinal side plate. There are two second locking plates. One end of the L-shaped cover plate is rotatably connected to the transverse side plate, and the other end is provided with a second locking plate. The transverse bottom plate is provided with another second locking plate. The transverse bottom plate and the transverse side plate form a groove for supporting the crossbeam. The L-shaped cover plate is used to close the periphery of the groove and to make the two second locking plates contact each other and be fixed and locked by bolts to lock the transverse locking part and the crossbeam.

[0011] In some embodiments, there are two lateral locking portions, which are located on both sides of the longitudinal locking portion and are perpendicular to each other to form an L-shaped structure.

[0012] In some embodiments, the system further includes pull rods, connecting pins, and snap ring pins. Multiple pull rods are provided, with two pull rods intersecting between every two adjacent columns. Each column has a connecting base with mounting holes. The pull rods are disposed within the mounting holes and rotatably connected to the columns via the connecting pins. The connecting pins have through holes perpendicular to their axes. The snap ring pins are disposed within the pin holes to limit the maximum movement distance of the connecting pins within the mounting holes. A movable component is provided at the intersection of the two pull rods to allow them to close relative to each other when the safety work platform is extended or retracted.

[0013] In some embodiments, the system further includes an adjustment assembly, which has multiple components, with one adjustment assembly provided at the end of each pull rod. The adjustment assembly includes a telescopic rod, a limiting block, and a rotating shaft. One end of the telescopic rod is connected to the end of the pull rod, and the other end is connected to the limiting block. The rotating shaft is disposed inside the limiting block and partially protrudes from the limiting block. The rotating shaft is rotatably connected to the limiting block, and the portion of the rotating shaft located inside the limiting block is provided with a limiting end. The other end of the rotating shaft has a through hole located at the mounting hole, and its axis is collinear with the mounting hole. The connecting pin passes through the mounting hole and the through hole in sequence.

[0014] In some embodiments, the workbench has a rectangular passageway in the middle, and protective railings are vertically installed at the edges of the passageway.

[0015] In some embodiments, a protective rope is also included, which is disposed on the guardrail.

[0016] In some embodiments, a telescopic ladder with an anti-detachment hook at the top and a U-shaped fixing groove at the bottom is connected between the passageways of adjacent workbenches. The telescopic ladder is connected to the two adjacent workbenches through the anti-detachment hook and the U-shaped fixing groove.

[0017] In some embodiments, every two adjacent modular units are stacked, and the columns in each modular unit are fixed by a straight locking bolt.

[0018] Furthermore, the beneficial effects of this utility model are as follows:

[0019] The modular assembly of this utility model is equipped with a locking component at the connection between the column and the workbench. Its open-lock design facilitates the quick assembly of the workbench and the column. At the same time, the locking component fixed on the column can move up and down on the column to achieve fastening with the workbench at any height, which is applicable to any floor height. The locking component greatly improves the assembly efficiency and the overall robustness of the module.

[0020] Meanwhile, the passageway in the middle of the workbench facilitates the transfer and transport of engineering materials between adjacent floors. The addition of guardrails and safety ropes to the passageway further enhances the safety of technicians operating the platform. The telescopic ladder adopts an anti-detachment hook and inverted U-shaped fixing groove connection method, which not only makes the ladder sturdy and safe, but also achieves the functions of convenient installation, easy disassembly and easy storage, further improving the overall safety and ease of combination of the safety work platform.

[0021] Furthermore, this utility model's 4.8m high module, when combined in two layers, can achieve foundation construction in all areas within a 5*5*10m rigid landfill cell. When combined in two layers, the vertical assembly of the columns, the retractable lateral tie rods, the work platform, and the telescopic ladder can all be assembled within the cell, saving on large-scale hoisting. After use, it can be quickly disassembled and stored, reducing the space occupied. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure of the rigid landfill modular safety work platform provided by this utility model;

[0023] Figure 2 A schematic diagram of the workbench in the rigid landfill modular safety work platform provided by this utility model;

[0024] Figure 3 Provided for this utility model Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 A schematic diagram of the tie rod section in the rigid landfill modular safety work platform provided by this utility model;

[0026] Figure 5 A schematic diagram of the adjustment component structure in the rigid landfill modular safety work platform provided by this utility model;

[0027] Figure 6 A schematic diagram of the locking component structure in the rigid landfill modular safety work platform provided by this utility model;

[0028] Figure 7 A schematic diagram of the longitudinal locking part in the locking assembly of the rigid landfill modular safety work platform provided by this utility model;

[0029] Figure 8 A schematic diagram of the telescopic ladder structure in the rigid landfill modular safety work platform provided by this utility model;

[0030] Figure 9 Side view of the telescopic ladder structure in the rigid landfill modular safety work platform provided by this utility model;

[0031] Figure 10 A schematic diagram of the U-shaped fixing groove in the telescopic ladder structure of the rigid landfill modular safety work platform provided by this utility model.

[0032] In the diagram: 1-Column, 11-Connecting base, 111-Mounting hole, 2-Workbench, 21-Support beam, 3-Locking assembly, 31-Longitudinal side plate, 32-Longitudinal cover plate, 33-First locking plate, 34-Transverse base plate, 35-Transverse side plate, 36-L-shaped cover plate, 37-Second locking plate, 4-Pull rod, 41-Moving assembly, 42-Connecting pin, 43-Snap pin, 5-Telescopic ladder, 51-Anti-detachment hook, 52-U-shaped fixing groove, 6-Protective rope, 7-Guardrail, 8-Passageway, 9-Adjusting assembly, 91-Telescopic rod, 92-Limit block, 93-Rotating shaft. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the embodiments of the present utility model, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. In addition, in the description of the embodiments of the present utility model, "multiple" means two or more. Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this utility model, unless otherwise stated, "multiple" means two or more.

[0034] like Figures 1-10 As shown, this utility model embodiment provides a rigid landfill modular safety work platform, comprising: multiple modular modules arranged parallel and spaced along the vertical direction;

[0035] Each modular assembly includes a column 1, a worktable 2, and a locking component 3. There are four columns 1, which are vertically arranged at the four corners of the worktable 2. A locking component 3 and a support beam 21 are provided at the contact points between the worktable 2 and the column 1. The locking component 3 is located on the column 1, and the support beam 21 is located on the worktable 2. The locking component 3 locks the column 1 and the worktable 2 together through the support beam 21.

[0036] The locking assembly 3 includes a longitudinal locking part that locks to the column 1 and a transverse locking part that locks to the supporting beam 21. The longitudinal locking part is fixed to the side of the column 1 by an openable lock, and the transverse locking part is fastened to the supporting beam 21 by an openable lock. The longitudinal locking part includes a longitudinal side plate 31, a longitudinal cover plate 32, and a first locking plate 33. The longitudinal side plate 31 has three pieces, which are vertically connected end to end to form a U-shaped groove with an opening facing the column 1. There are two longitudinal cover plates 32, which are rotatably mounted on two opposite longitudinal side plates 31. Each longitudinal cover plate 32 has a first locking plate 33 at a position close to each other. The two longitudinal cover plates 32 are used to seal the U-shaped groove and to make the two first locking plates 33 contact and be fixed and locked by bolts to lock the longitudinal locking part to the column 1. The transverse locking part includes a transverse side plate 35 and a transverse bottom plate. 34. L-shaped cover plate 36, second locking plate 37, transverse side plate 35 and longitudinal side plate 31 are perpendicularly arranged and fixedly connected, transverse bottom plate 34 is fixedly connected to transverse side plate 35 and is perpendicularly arranged and fixedly connected to longitudinal side plate 31, and there are two second locking plates 37. One end of L-shaped cover plate 36 is rotatably connected to transverse side plate 35, and the other end is provided with a second locking plate 37. Transverse bottom plate 34 is provided with another second locking plate 37. Transverse bottom plate 34 and transverse side plate 35 form a groove for supporting crossbeam 21. L-shaped cover plate 36 is used to close the periphery of the groove and make the two second locking plates 37 contact and be fixed and locked by bolts to lock the transverse locking part and the supporting crossbeam 21. There are two transverse locking parts, which are located on both sides of the longitudinal locking part and are perpendicular to each other to form an L-shaped structure.

[0037] In the above structure, the dimensions of the column 1 and the worktable 2 can be changed according to actual needs. This application does not impose specific limitations, but for the convenience of describing the specific implementation method, the present invention uses the following numerical examples:

[0038] In the above embodiment, the workbench 2 with guardrail 7 is manually fixed to the column 1 via the locking assembly 3. The longitudinal cover plate 32 with the first locking plate 33 at the corner of the locking assembly 3 is opened and placed vertically at a height of 2.0m above the column 1, so that the three longitudinal side plates 31 are tightly fitted to the column 1. After the longitudinal cover plate 32 is closed, the first locking plate 33 is tightened with bolts. Then, the two reserved support beams 21 at the corner of the workbench 2 are placed into the transverse locking part of the locking assembly 3. Specifically, the support beams 21 are placed on the transverse base plate 34 and tightly fitted to the transverse side plates 35. After covering the L-shaped cover plate 36, tighten the second locking plate 37 with bolts. At the same time, fix the diagonal column 1 and workbench 2 in the same way. Then fix another set of diagonal columns 1 and workbench 2. In addition, a locking component 3 is provided at the connection between the column 1 and workbench 2 of the combined module. Its opening and closing latching design facilitates the quick combination of workbench 2 and column 1. At the same time, the locking component 3 fixed on the column 1 can move up and down on the column 1 to achieve fastening with workbench 2 at any height. It is suitable for any floor height, and the locking component 3 greatly improves the assembly efficiency and the overall firmness of the module.

[0039] One possible implementation includes a pull rod 4, a connecting pin 42, and a snap ring pin 43. Multiple pull rods 4 are provided, with two pull rods 4 intersecting between every two adjacent columns 1. Each column 1 has a connecting base 11 with mounting holes 111. The pull rod 4 is disposed inside the mounting holes 111 and rotatably connected to the column 1 via the connecting pin 42. The connecting pin 42 has a through-hole perpendicular to its axis. The snap ring pin 43 is disposed inside the pin hole to limit the maximum movement distance of the connecting pin 42 within the mounting holes 111. A movable component 41 is provided at the intersection of the two pull rods 4, allowing the two pull rods 4 to rotate relative to the movable component 41, so that the two pull rods 4 can close together when the safety work platform is extended or retracted.

[0040] First, technicians determined the height of column 1 and the side length of workbench 2 based on the area of ​​the rigid landfill cell. In this embodiment, the cell area is 5.0*5.0m and the height is 10m. Therefore, a 4.8m long and high square tube was selected as the column 1 for the four directions of the combined module. The four columns 1 are connected to the tie rods 4 in pairs on the periphery. The two tie rods 4 are connected by the middle movable component 41 so that they can open and close up and down. Adjustment components 9 are set at the two top ends of the tie rods 4. There are multiple adjustment components 9, and each tie rod 4 has one adjustment component 9 at its end. The adjustment component 9 includes a telescopic rod 91, a limiting block 92, and a rotating shaft 93. One end of the telescopic rod 91 is connected to the end of the tie rod 4, and the other end is connected to the limiting block 92. The rotating shaft 93 is set inside the limiting block 92 and partially protrudes from the limiting block 92. The rotating shaft 93 is rotatably connected to the limiting block 92 and is located at the limit block 92. The internal part is provided with a limit end, and the other end of the rotating shaft 93 is provided with a through hole. The through hole is located at the mounting hole 111, and its axis is collinear with the mounting hole 111. The connecting pin 42 passes through the mounting hole 111 and the through hole in sequence, so that the extension and retraction of the telescopic rod 91 does not affect the fixation of the pull rod 4 and the connecting base 11. During installation, the connecting pin 42 connects the mounting hole 111 and the pin hole on the connecting base 11, and at the same time, the snap ring pin 43 is inserted into the tail hole of the connecting pin 42. The connecting pin 42 and the snap ring pin 43 provide double locking, which can extend and retract the length of the pull rod 4 while ensuring a firm lock. Disassembly and assembly are convenient. After the pull rods 4 in the four directions are manually connected and fixed to the columns 1 on both sides, the workbench 2 is fixed to the four columns 1 by the locking assembly 3. Specifically, one set is fixed at a height of 2.0m on each column 1. In this embodiment, the columns 1 and the pull rods 4 are fixed with two sets of cross supports, which complete the support structure of the periphery of the combined module.

[0041] In one possible implementation, a rectangular passageway 8 is provided in the middle of the workbench 2. Guardrails 7 are vertically installed along the edges of the passageway 8, and safety ropes 6 are also included. The safety ropes 6 are attached to the guardrails 7. Furthermore, two sets of guardrails, each 0.5m high, 2.40m long, and 2.0m wide, are vertically welded to the passageway 8, facing each other. The workbench 2 uses square tubing of the same specifications as the column 1 as its outer and inner crossbeams. The outer crossbeam is 4.8*4.8m long, and the inner crossbeam is 2.4*2.0m long. These are welded together to form the frame. The frame is internally welded with channel steel of the same material at intervals, and the frame surface is covered with wooden planks of the same shape and specifications. After the workbench 2 is completed, rectangular guardrails 7, each 2.4*2.0*0.5m long, are welded to the inner crossbeams of the workbench 2. This protects the safety of technicians working on the workbench 2, facilitates the transfer of technicians between adjacent floors and the transport of construction materials, and prevents technicians from falling from the passageway 8, thus improving construction safety.

[0042] In one possible implementation, a telescopic ladder 5 with an anti-detachment hook 51 at the top and a U-shaped fixing groove 52 at the bottom is connected between the access openings 8 of adjacent workbenches 2. The telescopic ladder 5 is connected to the two adjacent workbenches 2 through the anti-detachment hook 51 and the U-shaped fixing groove 52. According to the above method, a second workbench 2 is installed at a height of 4.0 meters on the column 1. A guardrail 7 is welded on the inner crossbeam of the workbench 2. Then, a 0.3m*2.5m aluminum alloy telescopic ladder 5 is erected between the first and second workbenches 2 to facilitate the transfer of technicians between the two adjacent workbenches 2. The specific installation method is as follows: the anti-detachment hook 51 at the top is manually hung on the top of the guardrail 7 on the inner crossbeam of the upper workbench 2, the U-shaped fixing groove 52 is fastened to the inner crossbeam of the lower work platform, and the protective rope 6 is locked to the guardrail 7.

[0043] When the overall height is changed, the crane places the connected modular unit inside the rigid landfill cell. Another set of modular units, the work platform 2, is installed 1.2m and 3.2m from the bottom surface, outside the cell. When construction above 5.0m is required, the other modular unit is hoisted into the cell by crane. Inside the cell, the tops of the four uprights 1 are directly fixed to the uprights 1 of the newly hoisted modular unit using straight-line locking bolts, creating a 9.8m work platform. When construction within the cell is complete, the straight-line locking bolts in the middle of the uprights 1 are removed, and the two modular units are hoisted out one by one by crane. Outside the cell, the uprights 1, work platform 2, telescopic ladder 5, and tie rod 4 are disassembled and placed separately, without occupying storage space.

[0044] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A modular safety work platform for rigid landfills, characterized in that, include: Multiple combined modules arranged at parallel intervals along the vertical direction; Each assembly module includes a column, a worktable, and a locking assembly. There are four columns, which are vertically arranged at the four corners of the worktable. A locking assembly and a support beam are provided at the contact points between the worktable and the columns. The locking assembly is located on the column, and the support beam is located on the worktable. The locking assembly locks the column and the worktable together through the support beam. The locking assembly includes a longitudinal locking part that locks to the column and a transverse locking part that locks to the support beam. The longitudinal locking part is fixed to the side of the column by an openable lock, and the transverse locking part is fastened to the support beam by an openable lock.

2. The rigid landfill modular safety work platform as described in claim 1, characterized in that, The longitudinal locking part includes a longitudinal side plate, a longitudinal cover plate, and a first locking plate. The longitudinal side plate has three pieces, which are vertically connected end to end to form a U-shaped groove with an opening facing the column. The longitudinal cover plate has two pieces, which are rotatably mounted on two opposite longitudinal side plates. Each longitudinal cover plate has a first locking plate at a position close to each other. The two longitudinal cover plates are used to seal the U-shaped groove and to make the two first locking plates contact each other and be fixed and locked by bolts to lock the longitudinal locking part to the column.

3. The rigid landfill modular safety work platform as described in claim 2, characterized in that, The transverse locking part includes a transverse side plate, a transverse bottom plate, an L-shaped cover plate, and a second locking plate. The transverse side plate is perpendicular to and fixedly connected to the longitudinal side plate. The transverse bottom plate is fixedly connected to the transverse side plate and is also perpendicular to and fixedly connected to the longitudinal side plate. There are two second locking plates. One end of the L-shaped cover plate is rotatably connected to the transverse side plate, and the other end is provided with a second locking plate. The transverse bottom plate is provided with another second locking plate. The transverse bottom plate and the transverse side plate form a groove for supporting the crossbeam. The L-shaped cover plate is used to close the periphery of the groove and to make the two second locking plates contact each other and be fixed and locked by bolts to lock the transverse locking part and the crossbeam.

4. The rigid landfill modular safety work platform as described in claim 3, characterized in that, The lateral locking part has two parts, which are located on both sides of the longitudinal locking part and are perpendicular to each other to form an L-shaped structure.

5. The rigid landfill modular safety work platform as described in claim 1, characterized in that, It also includes tie rods, connecting pins, and snap ring pins. There are multiple tie rods, with two tie rods intersecting between every two adjacent columns. Each column is provided with a connecting base, and the connecting base is provided with a mounting hole. The tie rod is disposed inside the mounting hole and is rotatably connected to the column through the connecting pin. The connecting pin has a through hole perpendicular to the axis of the axis. The snap ring pin is disposed inside the pin hole to limit the maximum movement distance of the connecting pin inside the mounting hole. A movable component is provided at the intersection of the two tie rods so that the two tie rods can be closed relative to each other when the safety work platform is extended or retracted.

6. The rigid landfill modular safety work platform as described in claim 5, characterized in that, It also includes adjustment components, of which there are multiple adjustment components, with one adjustment component provided at the end of each pull rod. Each adjustment component includes a telescopic rod, a limiting block, and a rotating shaft. One end of the telescopic rod is connected to the end of the pull rod, and the other end is connected to the limiting block. The rotating shaft is disposed inside the limiting block and partially protrudes from the limiting block. The rotating shaft is rotatably connected to the limiting block, and the portion of the rotating shaft located inside the limiting block is provided with a limiting end. The other end of the rotating shaft has a through hole, which is disposed at the mounting hole, and its axis is collinear with the mounting hole. The connecting pin passes through the mounting hole and the through hole in sequence.

7. The rigid landfill modular safety work platform as described in claim 1, characterized in that, The workbench has a rectangular passageway in the middle, and protective railings are installed vertically along the edges of the passageway.

8. The rigid landfill modular safety work platform as described in claim 7, characterized in that, It also includes a protective rope, which is installed on the guardrail.

9. The rigid landfill modular safety work platform as described in claim 7, characterized in that, A telescopic ladder with an anti-detachment hook at the top and a U-shaped fixing groove at the bottom is connected between the passageways of adjacent workbenches. The telescopic ladder is connected to the two adjacent workbenches through the anti-detachment hook and the U-shaped fixing groove.

10. The rigid landfill modular safety work platform as described in claim 1, characterized in that, Each pair of adjacent modular units is stacked on top of each other, and the columns in each modular unit are fixed by a straight locking bolt.