Combined type roof manhole safety steel straight ladder comprising safety platform

Abstract

The utility model provides a combined type roof manhole safety steel straight ladder comprising a safety platform. The problems that a cover plate at the position of an existing manhole is prone to aging and rain leakage, climbing is inconvenient, and protection measures are lacked are effectively solved. According to the technical scheme, the device comprises a lower straight ladder section, a translation skylight and an out-of-roof overhead platform; the lower straight ladder section comprises a ladder, the ladder is located in the access hole, a plurality of protective rings are arranged on the ladder, and the protective rings and the ladder form a net barrel-shaped structure; the translation skylight comprises a horizontal guide rail, the left end of the guide rail is fixed to the upper end of the ladder, the guide rail is located at the upper end of the access hole, and a cover plate capable of sliding in a reciprocating mode is arranged in the guide rail and can completely cover the upper end of the access hole. The roof-out overhead platform comprises a step section and handrails on the two sides of the step section. The manhole cover plate is ingenious in structure, the service life of the cover plate at the manhole can be greatly prolonged, a ladder does not need to be carried additionally, the daylighting requirement can be met, and protection measures are taken when people go up and down.

Description

Technical Field

[0001] This utility model relates to the field of steel ladders for inspection holes, and in particular to a combined roof inspection hole safety steel straight ladder that includes a safety platform. Background Technology

[0002] Non-accessible roofs are typically designed with access hatches, equipped with steel ladders for vertical access. These hatches usually have hinged covers to prevent rain and wind from entering. The covers are typically made of wood or rock wool board covered with aluminum, weighing around 20 kg. When accessing the hatch, maintenance personnel often have to stand on the ladder rungs while applying significant force with one hand to open or close the cover, which is extremely unsafe and inconvenient. Wood and rock wool are prone to damage and deformation, have a short lifespan, and are easily aged and leak. For routine safety reasons, ladder sections are usually not provided for heights below 2 meters from the ground. During maintenance, personnel must carry a ladder to connect to the upper ladder section, which is very inconvenient. The location of the access hatch above the roof lacks safety protection and access aids, leaving maintenance personnel with their upper bodies suspended and unprotected when exiting, posing a significant safety hazard. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a combined roof access hole safety steel ladder that includes a safety platform, which effectively solves the problems of easy aging and rain leakage of the cover plate at the existing access hole, inconvenience of climbing, and lack of protective measures.

[0004] The technical solution includes a lower straight staircase, a sliding skylight, and an elevated platform extending above the roof.

[0005] The lower straight ladder section includes a ladder, which is located inside the inspection hole. Multiple protective rings are installed on the ladder, and the protective rings and the ladder form a mesh-like structure.

[0006] The sliding skylight includes a horizontal guide rail, which is fixed in place. The left end of the guide rail is fixed to the upper end of the ladder. The guide rail is located above the inspection hole. A cover plate that can slide back and forth is installed inside the guide rail. The cover plate can completely cover the upper end of the inspection hole.

[0007] The elevated platform extending above the roof includes a platform stage and railings on both sides of the platform stage.

[0008] Furthermore, multiple supports are provided on the lower straight ladder section.

[0009] Furthermore, the lowest step of the lower straight ladder section is set 450mm from the ground, and the spacing between the steps is between 280mm and 300mm.

[0010] Furthermore, the lower straight staircase is equipped with a lockable anti-climbing protective door. It is locked during daily use, and no additional ladder is needed for maintenance. It can be used normally after unlocking.

[0011] This utility model has a clever structure that can greatly improve the service life of the cover plate at the inspection hole, eliminate the need to carry a separate ladder, meet the lighting requirements, and provide safety measures for personnel going up and down. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0013] Figure 2 This is a schematic diagram of the installation of this utility model. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0015] Depend on Figures 1 to 2 As shown, this utility model includes a lower straight staircase section 1, a sliding skylight 2, and an elevated platform extending above the roof 3;

[0016] The lower straight ladder section 1 includes a ladder 101, which is located inside the inspection hole. Multiple protective rings 102 are provided on the ladder 101, and the protective rings 102 and the ladder 101 form a mesh-like structure.

[0017] The sliding skylight 2 includes a horizontal guide rail 201, which is fixed in place. The left end of the guide rail 201 is fixed to the upper end of the ladder 101. The guide rail 201 is located above the inspection hole. A cover plate 202 that can slide back and forth is provided inside the guide rail 201. The cover plate 202 can completely cover the upper end of the inspection hole.

[0018] The rooftop elevated platform 3 includes a platform stage 301 and railings 302 on both sides of the platform stage 301.

[0019] Multiple supports 103 are provided on the lower straight ladder section 1.

[0020] To save time and effort for people climbing the ladder, the lowest step of the lower straight ladder section 1 is set 450mm from the ground, and the spacing between the steps is between 280mm and 300mm.

[0021] To prevent unauthorized personnel from climbing onto the roof, the lower straight staircase section 1 is equipped with a lockable anti-climbing protective door. It is locked for daily use, and no additional ladder 101 is needed for maintenance. It can be used normally after unlocking.

[0022] The guide rail 201 of the sliding skylight 2 is made of aluminum alloy, and the cover plate 202 is made of reinforced insulated glass. The cover plate 202 is equipped with pulleys. The upper end of the inspection hole adopts a flip-out structure. The guide rail 201 is fixed together with the flip-out at the upper end of the inspection hole, and the space between the guide rail 201 and the inspection hole is filled with sealant to prevent rainwater from entering.

[0023] The upper end of the platform stage 301 is flush with the guide rail 201; the railing handrail 302 is fixed to the roof-mounted platform 3.

[0024] The bottom of the lower straight ladder section 1 is no more than 550mm above the ground, and the spacing of the wall-mounted supports 103 is no more than 2m.

[0025] The lower section of the straight staircase 1, with a height of less than 2m below the bottom, shall be designed to prevent climbing. It can be made by combining stainless steel plates, hinges, and locks.

[0026] Normally, the sliding skylight 2 is closed. During maintenance, the sliding skylight 2 is opened, and personnel can enter and exit through the inspection hole.

[0027] In this design, the lower straight staircase section 1 is equipped with a lockable anti-climbing safety door. It is locked for daily use, eliminating the need to carry a separate ladder 101 for maintenance, making it convenient and quick. The cover plate 202 is a sliding skylight type, which is more flexible to open than a hinged wooden cover plate 202. It can be easily opened with a single finger and minimal force, greatly reducing the safety risks when opening the cover plate 202. The cover plate 202 uses laminated double-glazed glass, allowing natural lighting in the inspection hole area, saving energy and reducing operating costs. The handrail 302 is connected vertically to the lower straight staircase section 1, with complete safety measures, ensuring easy and safe access. The elevated platform 3 leading to the roof is connected to the roof via steps, facilitating smooth maintenance.

[0028] The installation height of the sliding skylight 2 plus the thickness of the roof-mounted platform 3 should be controlled within a reasonable range, and the spacing between the columns and the height of the platform should ensure that the sliding skylight 2 has sufficient space to move.

[0029] The guide rail 201 is fixed in place. It can be fixed not only to the ladder 101, but also to the roof. In short, the guide rail 201 provides a movable distance for the opening or closing of the cover plate 202, ensuring that the inspection hole can be fully opened and personnel can pass through the inspection hole smoothly.

[0030] The upper end of the lower straight ladder section 1 and the right side of the railing 302 are also equipped with protective rings 102, which are used by people to climb up and down and can play a role in safety protection.

[0031] The anti-climbing protective door is installed at the lower end of the lower straight ladder section 1 in the most traditional way, with the aim of preventing unauthorized personnel from climbing.

[0032] After the ladder 101 extends out of the roof, auxiliary support columns 103 can be added on both sides of the railing handrail 302 to enhance the stability of the roof-mounted platform 3.

[0033] The ladder 101 should be kept at a certain distance from the wall to prevent interference between the feet and the wall when climbing, thus facilitating safe climbing.

Claims

1. A combined roof access hatch safety steel ladder including a safety platform, characterized in that, Includes the lower straight staircase (1), the sliding skylight (2), and the roof-mounted platform (3); The lower straight ladder section (1) includes a ladder (101), which is located inside the inspection hole. Multiple protective rings (102) are provided on the ladder (101), and the protective rings (102) and the ladder (101) form a mesh-like structure. The sliding skylight (2) includes a horizontal guide rail (201), the left end of the guide rail (201) is fixed to the upper end of the ladder (101), the guide rail (201) is located at the upper end of the inspection hole, and a cover plate (202) that can slide back and forth is provided inside the guide rail (201), and the cover plate (202) can completely cover the upper end of the inspection hole; The rooftop elevated platform (3) includes a platform stage (301) and railings (302) on both sides of the platform stage (301).

2. A combined roof access hatch safety steel ladder including a safety platform as described in claim 1, characterized in that, Multiple supports (103) are provided on the lower straight ladder section (1).

3. A combined roof access hatch safety steel ladder including a safety platform as described in claim 1, characterized in that, The bottom step of the lower straight ladder section (1) is set 450mm from the ground, and the spacing between the steps is between 280mm and 300mm.

4. A combined roof access hatch safety steel ladder including a safety platform as described in claim 1, characterized in that, The lower straight ladder section (1) is equipped with a lockable anti-climbing protective door. It is locked in daily use, and no ladder (101) is needed during maintenance. It can be used normally after unlocking.

5. A combined roof access hatch safety steel ladder including a safety platform according to claim 1, characterized in that, The guide rail (201) of the sliding skylight (2) is made of aluminum alloy, and the cover plate (202) is made of reinforced insulated glass. The cover plate (202) is equipped with pulleys. The upper end of the inspection hole adopts a flip-out structure. The guide rail (201) is fixed together with the flip-out at the upper end of the inspection hole, and the guide rail (201) and the inspection hole are filled with sealant to prevent rainwater from entering.

6. A combined roof access hatch safety steel ladder including a safety platform according to claim 1, characterized in that, The upper end of the platform stage (301) is flush with the guide rail (201); the handrail (302) is fixed to the straight ladder.

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