An edge protection system for aerial work platforms and its application method

Abstract

This invention discloses an edge protection system for an aerial work platform and its application method. The system includes a main body of the work platform, comprising a working plane and an edge area, a protective railing along the main body, and a protective buffer zone on the main body. The protective buffer zone includes extended railing sections extending outwards perpendicular to the protective railing, with hinged doors connecting the extended railing sections. The protective buffer zone has a U-shaped or concave structure and a depth of not less than 1200mm. The lower half of the height of the protective railing is a removable sealing plate with warning signs on its outer end face. The upper half of the height of the protective railing is openwork and interspersed with horizontal rails, which are positioned between adjacent vertical rails.

Description

Technical Field

[0001] This invention belongs to the field of industrial high-altitude operation safety protection technology, specifically relating to an edge protection system for high-altitude operation platforms and its application method. Background Technology

[0002] Currently, in industrial sectors such as metallurgy, construction, and chemicals, aerial work platforms commonly pose safety hazards related to working near the edge. This is especially true on platforms equipped with cantilever cranes or material handling openings, where movable doors or openings are often installed in the platform railings to accommodate material handling. During operations, personnel must work near these openings, their bodies close to the platform edge, posing a significant risk of falls from height. Traditional safety measures rely primarily on management and individual behavior control, such as mandating the wearing of safety belts, setting up warning signs, and increasing safety patrols. However, in actual production, due to frequent operations, personnel fatigue, and insufficient safety awareness, management measures are often difficult to fully implement, resulting in a phenomenon of "behavioral safety dependence," and the risk of accidents remains high. Existing technologies also employ fixed protective nets and heightened railings for protection, but these methods often interfere with normal operations or cannot adapt to the dynamic demands of lifting operations, and still fail to fundamentally eliminate the risk of falls when working near the edge. Therefore, how to design an edge protection system for aerial work platforms that can both meet operational requirements and fundamentally prevent personnel from falling has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0003] The purpose of this invention is to provide an edge protection system for aerial work platforms and its application method, so as to solve the problems mentioned in the background art.

[0004] The objective of this invention is achieved through the following technical solution: an edge protection system for an aerial work platform, comprising a work platform body, the work platform body including a working plane and an edge area, a protective railing set along the work platform body, and a protective buffer zone set on the work platform body;

[0005] The protective buffer zone includes extended guardrail sections that extend outwards perpendicular to the guardrail, and the extended guardrail sections are connected to a movable door by hinges.

[0006] Furthermore, the protective buffer zone has a U-shaped or concave structure and a depth of not less than 1200mm.

[0007] Furthermore, the lower half of the guardrail height is a removable sealing plate, and a warning sign is provided on the outer end face of the sealing plate;

[0008] The guardrail is open at more than half its height and is provided with horizontal bars at intervals. The horizontal bars are provided between adjacent vertical bars.

[0009] Furthermore, the main body of the work platform is provided with pre-embedded positioning components, which are 1200mm, 1800mm, and 2500mm away from the guardrail, respectively.

[0010] Furthermore, the protective buffer zone includes a bottom positioning end, which is provided with a first positioning end and a second positioning end. The first positioning end and the second positioning end are connected by a connecting pipe, which is a telescopic pipe structure.

[0011] The first positioning end and the second positioning end are fixed to the main body of the work platform by welding or bolting.

[0012] The second positioning end of the protective buffer zone is positioned by bolt connection with the pre-embedded positioning component.

[0013] Furthermore, the extended guardrail sections are arranged in three groups horizontally, and the three groups of extended guardrail sections are set with a telescopic structure.

[0014] Furthermore, one end of the extended guardrail section is fixedly welded to the guardrail or bolted to it, and the other end of the extended guardrail section is fixedly welded to the positioning end, which is a cylindrical or rectangular structure.

[0015] The positioning ends are symmetrically arranged, and the movable door is connected between the symmetrical positioning ends by hinges;

[0016] The extended guardrail section is a telescopic structure.

[0017] Furthermore, a positioning base plate is fixedly provided at the bottom of the positioning end, and the positioning base plate is connected to the embedded positioning component by bolts. The embedded positioning component is a threaded sleeve structure with threaded holes.

[0018] The application of an edge protection system for aerial work platforms applies the system to work areas where there is a risk of falls from height, such as cantilever cranes, hoisting openings, and maintenance openings.

[0019] An application method for an edge protection system for an aerial work platform includes the following steps;

[0020] On-site measurement and design: Determine the location of the movable gate and the structure of the guardrail; design the extension guardrail section to be 1200mm long, with the same material as the guardrail, using a steel pipe structure, and determine the depth of the "U"-shaped buffer zone to be 1200mm;

[0021] Construction preparation: Prepare steel pipes, welding equipment, anti-corrosion coatings, etc.; ensure on-site safety isolation and warnings; weld 1200mm long extension railing sections vertically outward on the left and right sides of the movable gate; install the movable gate between the extension railing sections, connect them with hinges and add locks; grind and treat the welded parts with anti-corrosion treatment.

[0022] The movable door opens and closes smoothly. When the worker stands in the buffer zone, the distance from the edge of the original platform is 1200mm. A simulated backward tilt test confirmed that the center of gravity is inside the platform. Workers can work safely with the door open without wearing a safety belt, which fundamentally eliminates the risk of falling from height.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] This invention creates a safe working buffer zone, fundamentally eliminating the risk of personnel falling from the platform edge, ensuring safety even if workers are not wearing safety harnesses. It boasts strong operational compatibility; the modified structure does not affect the normal operation of equipment such as cantilever cranes, and the movable doors can still be opened normally to meet material handling needs. It has low management dependence, reducing reliance on external management measures and personnel safety behavior, thus lowering the probability of accidents caused by human error. It is simple in structure and low in cost, requiring common materials for modification, and is easy to construct with a short cycle, suitable for rapid modification of existing platforms. It meets and exceeds safety standards: based on meeting current safety standards, it achieves a higher level of safety protection through design refinement. This system is suitable for various industrial aerial work platforms, especially for high-risk working environments such as metallurgy, power, and chemical industries. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0026] Figure 2 This is a three-dimensional schematic diagram of another state of the present invention;

[0027] Figure 3 This is the present invention. Figure 2 A plan view;

[0028] Figure 4 This is the present invention. Figure 2 A magnified view of a portion of the image;

[0029] Figure 5 This is a schematic diagram of the planar layout of the present invention;

[0030] Figure 6 This is the present invention. Figure 5 A magnified view of a portion of the image;

[0031] Figure 7 This is a schematic diagram showing the support provided by the extended guardrail section of the present invention. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] like Figure 1-7 As shown, an edge protection system for an aerial work platform includes a work platform body 1, the work platform body 1 includes a work plane 2 and an edge area 3, a guardrail 4 set along the work platform body 1, and a protective buffer zone 5 set on the work platform body 1;

[0036] The protective buffer zone 5 includes extended guardrail sections 6 that extend outward from the vertical guardrail 4. The extended guardrail sections 6 are connected to a movable door 7 by hinges, and a bolt lock is provided on the movable door.

[0037] To facilitate the formation of a standing buffer area during use, the protective buffer zone 5 has a U-shaped or concave structure with a depth of not less than 1200mm.

[0038] It includes extended guardrail sections respectively set on both sides of the movable door and extending outward perpendicular to the guardrail 4, wherein the movable door is installed between the two extended guardrail sections, and the extended guardrails and the guardrail 4 together form a protective buffer zone that is recessed into the platform.

[0039] To facilitate the pasting or bolting of warning signs onto the sealing plate 8 during use, the lower half of the height of the guardrail 4 is a removable sealing plate 8, and a warning sign 9 is provided on the outer end face of the sealing plate 8;

[0040] The guardrail 4 is open at more than half its height and is provided with horizontal rails 10 at intervals. The horizontal rails 10 are provided between adjacent vertical rails 11.

[0041] In order to facilitate the fixing of the protective buffer zone 5 at different distances during use, the main body 1 of the work platform is provided with a pre-embedded positioning component 12, which is 1200mm, 1800mm and 2500mm away from the guardrail 4 respectively.

[0042] To facilitate the limiting and fixing of the protective buffer zone 5 through the bottom positioning end during use, the protective buffer zone 5 includes a bottom positioning end 13, the bottom positioning end 13 is provided with a first positioning end 14 and a second positioning end 15, the first positioning end 14 and the second positioning end 15 are connected by a connecting pipe 16, the connecting pipe 14 is a telescopic pipe structure, the telescopic form of the connecting pipe 14 is a sleeve form and is fixed by bolts.

[0043] The first positioning end 14 and the second positioning end 15 are disposed on the main body 1 of the work platform.

[0044] The second positioning end 15 of the protective buffer zone 5 is positioned by bolt connection with the pre-embedded positioning component 12.

[0045] To facilitate extension and retraction during use, three sets of the extended guardrail sections 6 are arranged horizontally, and the three sets of extended guardrail sections 6 adopt a telescopic structure.

[0046] One end of the extended guardrail section 6 is fixed to the guardrail 4 by welding or bolting, and the other end of the extended guardrail section 6 is fixedly welded to the positioning end 17, which is a cylindrical or rectangular structure.

[0047] Vertical supports are fixedly installed between adjacent extended guardrail sections 6, and the vertical supports are set on both sides of the non-telescopic part to maintain the stability of the extended guardrail sections.

[0048] The positioning ends 17 are symmetrically arranged, and the movable door is connected between the symmetrical positioning ends 17 by hinges;

[0049] The extended guardrail section 6 is a telescopic structure, wherein the telescopic form of the extended guardrail section 6 is a sleeve fixed by bolts.

[0050] In order to facilitate the fixing of the positioning end by the pre-embedded positioning component during use, a positioning base plate 18 is fixedly provided at the bottom of the positioning end 17. The positioning base plate 18 is connected to the pre-embedded positioning component 12 by bolts. The pre-embedded positioning component 12 is a threaded sleeve structure with a threaded hole.

[0051] The positioning base plate 18 is fixedly connected to the second positioning end 15, and the height of the second positioning end 15 is higher than the height of the positioning base plate 18.

[0052] The first positioning end 14 is fixed on the side of the main body 1 of the work platform near the guardrail 4.

[0053] The upper surface of the first positioning end 14 is fixedly provided with a vertical support, which is fixedly connected to the bottom extension guardrail section to make it stable. The vertical support is located on the side close to the sealing plate.

[0054] Among them, the pre-embedded positioning component 12 is a flat plate structure with threaded sleeve structure with threaded holes fixedly installed at its four corners and fixedly pre-embedded at different positions of the main body 1 of the work platform.

[0055] The application of an edge protection system for aerial work platforms applies the system to work areas where there is a risk of falls from height, such as cantilever cranes, hoisting openings, and maintenance openings.

[0056] An application method for an edge protection system of an aerial work platform includes the following steps; taking the West Refining Platform of Baogang Steel's Thin Plate Plant as an example, the platform is 8.8 meters high, and a rotating cantilever crane is installed on the north side for lifting materials such as calcium wire and welding machines;

[0057] On-site measurement and design: Determine the location of the movable gate and the structure of the guardrail; design the extension guardrail section to be 1200mm long, with the same material as the guardrail, using a steel pipe structure, and determine the depth of the "U"-shaped buffer zone to be 1200mm;

[0058] Construction preparation: Prepare steel pipes, welding equipment, anti-corrosion coatings, etc.; ensure on-site safety isolation and warnings; weld 1200mm long extension railing sections vertically outward on the left and right sides of the movable gate; install the movable gate between the extension railing sections, connect them with hinges and add locks; grind and treat the welded parts with anti-corrosion treatment.

[0059] The movable door opens and closes smoothly. When the worker stands in the buffer zone, the distance from the edge of the original platform is 1200mm. A simulated backward tilt test confirmed that the center of gravity is inside the platform. Workers can work safely with the door open without wearing a safety belt, which fundamentally eliminates the risk of falling from height.

[0060] This invention is applicable to the modification of power maintenance platforms. Power maintenance platforms often have hoisting openings for lifting equipment. Extended guardrails are added to both sides of the hoisting opening to form a "U"-shaped working buffer zone, with a depth of 1200mm-2000mm, to accommodate the hoisting needs of larger equipment. The movable door is a lightweight sliding door, convenient for single-person operation.

[0061] This invention is applicable to enhanced protection of chemical work platforms. In addition to fall prevention, the extended guardrail sections are made of corrosion-resistant materials, and the buffer zone floor is covered with an anti-slip, acid-resistant coating, further improving overall safety performance. The extended guardrail length can be set from 1200mm to 3000mm.

[0062] Among them, the extended guardrail section 6 of the protective buffer zone 5 is 1200mm, which is suitable for scenarios where platform space is limited.

[0063] The extended guardrail section 6 of the protective buffer zone 5 is 1800mm long and is suitable for general industrial platforms.

[0064] Among them, the extended guardrail section 6 of the protective buffer zone 5 is 2500mm, which is suitable for high-risk, large equipment operation platforms.

[0065] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0066] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An edge protection system for an aerial work platform, characterized in that: It includes the main body of the work platform (1), which includes the work plane (2) and the edge area (3), and also includes the guardrail (4) set along the main body of the work platform (1), and also includes the protective buffer zone (5) set on the main body of the work platform (1); The protective buffer zone (5) includes extended guardrail sections (6) that extend outward from the guardrail (4) respectively, and the extended guardrail sections (6) are connected to the movable door (7) by hinges.

2. The edge protection system for an aerial work platform according to claim 1, characterized in that: The protective buffer zone (5) has a concave or U-shaped structure and a depth of not less than 1200mm.

3. The edge protection system for an aerial work platform according to claim 2, characterized in that: The guardrail (4) has a removable cover plate (8) at less than half its height, and a warning sign (9) is provided on the outer end face of the cover plate (8). The guardrail (4) is hollowed out at more than half its height and is provided with horizontal rails (10) at intervals. The horizontal rails (10) are provided between adjacent vertical rails (11).

4. The edge protection system for an aerial work platform according to claim 3, characterized in that: The main body (1) of the work platform is provided with a pre-embedded positioning component (12), and the distance between the pre-embedded positioning component (12) and the guardrail (4) is 1200mm, 1800mm and 2500mm respectively.

5. The edge protection system for an aerial work platform according to claim 4, characterized in that: The protective buffer zone (5) includes a bottom positioning end (13), the bottom positioning end (13) is provided with a first positioning end (14) and a second positioning end (15), the first positioning end (14) and the second positioning end (15) are connected by a connecting pipe (16), the connecting pipe (14) is a telescopic pipe structure; The first positioning end (14) and the second positioning end (15) are set on the main body (1) of the work platform. The second positioning end (15) of the protective buffer zone (5) is positioned by bolt connection with the pre-embedded positioning component (12).

6. The edge protection system for an aerial work platform according to claim 5, characterized in that: The extended guardrail section (6) is set in three groups horizontally, and the three groups of the extended guardrail section (6) are set with a telescopic structure.

7. The edge protection system for an aerial work platform according to claim 6, characterized in that: One end of the extended guardrail section (6) is fixed to the guardrail (4) by welding or bolting, and the other end of the extended guardrail section (6) is fixedly welded to the positioning end (17), which is a cylindrical or rectangular structure. The positioning ends (17) are symmetrically arranged, and the movable door is connected between the symmetrical positioning ends (17) by hinges; The extended guardrail section (6) is a telescopic structure.

8. The edge protection system for an aerial work platform according to claim 7, characterized in that: The bottom of the positioning end (17) is fixedly provided with a positioning base plate (18), which is connected to the pre-embedded positioning component (12) by bolts. The pre-embedded positioning component (12) is a threaded sleeve structure with a threaded hole. The positioning base plate (18) is fixedly connected to the second positioning end (15), and the height of the second positioning end (15) is higher than the height of the positioning base plate (18). The first positioning end (14) is fixed on the side of the main body (1) of the work platform close to the guardrail (4).

9. An application of the edge protection system for an aerial work platform according to claim 8, characterized in that: The edge protection system for aerial work platforms is applicable to work areas where there is a risk of falls from height, such as cantilever cranes, hoisting openings, and maintenance openings.

10. An application method of the edge protection system of the aerial work platform according to claim 8, characterized in that: Includes the following steps; On-site measurement and design: Determine the location of the movable gate and the structure of the guardrail; design the extension guardrail section to be 1200mm long, with the same material as the guardrail, using a steel pipe structure; determine the depth of the "U"-shaped buffer zone to be 1200mm. Construction preparation: Prepare steel pipes, welding equipment, anti-corrosion coatings, etc.; ensure on-site safety isolation and warnings; weld 1200mm long extension railing sections vertically outward on the left and right sides of the movable gate; install the movable gate between the extension railing sections, connect them with hinges and add locks; grind and treat the welded parts with anti-corrosion treatment. The movable door opens and closes smoothly. When the worker stands in the buffer zone, the distance from the edge of the original platform is 1200mm. A simulated backward tilt test confirmed that the center of gravity is inside the platform. Workers can work safely with the door open without wearing a safety belt, which fundamentally eliminates the risk of falling from height.

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