Folding ladder for overhauling and passing of pitched roof

Abstract

The utility model provides a folding ladder for overhauling and passing of a pitched roof, which relates to the technical field of folding ladders for overhauling of pitched roofs and comprises a ladder stand, a main guide rail fixed on a main ridge of a roof and a secondary guide rail mounted on a cornice of the roof, a connecting plate is fixedly connected between the two sliding blocks, a main guide rail and a secondary guide rail enable the ladder stand to be installed on a roof, a maintainer moves on the ladder stand in the direction of a vertical ridge of the roof, the gear can roll on the rack through rotation of the gear and meshing connection of the gear and the rack, and then the sliding blocks are driven to move. The connecting plates, the connecting blocks and the ladder stand can move in the main ridge direction of the roof, the position of the ladder stand is adjusted, and a maintainer can be helped to reach any position of the face, where the ladder stand is located, of the roof for maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of folding ladders for repairing sloped roofs, in particular to a folding ladder used for repairing sloped roofs. Background Art

[0002] A sloping roof refers to a roof with a slope greater than 3%. The construction methods of sloping roofs vary in different regions. Some are paved with tiles, and some are paved with waterproof and heat-insulating pads. However, no matter what material is used, the sloping roof needs to be inspected and maintained regularly, and a folding ladder is required for personnel to move on the roof during maintenance.

[0003] Therefore, the publication number is CN214943952U, which is a foldable rooftop auxiliary house safety inspection ladder, comprising a main staircase part fixed on the wall, a mesh guardrail part arranged on the outside of the main staircase part and detachably connected thereto, and a folding staircase part movably connected to the lower end of the main staircase part, the main staircase part comprising a first ladder handrail, a second ladder handrail and a fixed pedal welded between the first ladder handrail and the second ladder handrail at equal intervals, a vertically spaced mesh ladder connecting loose-leaf piece welded on one side of the first ladder handrail, a loose-leaf lock head welded on one side of the second ladder handrail, a first lower threaded locking rod of the main body and a second lower threaded locking rod of the main body welded on opposite sides of the lower parts of the first ladder handrail and the second ladder handrail, and a lower loose-leaf piece welded on the lower ends of the first ladder handrail and the second ladder handrail.

[0004] However, because part of the main staircase is fixed on the wall, when in use, maintenance personnel cannot use the ladder to reach areas far away from the ladder and can only stand on the roof, which can easily cause injuries due to slipping or the load-bearing nature of the roof. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and provides a folding ladder for repairing a sloped roof.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a folding ladder for sloping roof maintenance, comprising a ladder, a main guide rail for fixing on the roof ridge and a secondary guide rail installed on the roof eaves, two sliders being slidably connected in the main guide rail, a connecting plate being fixedly connected between the two sliders, a connecting block being rotatably connected to the top edge of the connecting plate, the connecting block being hinged on one side of the ladder, a connecting block being also hinged on the other side of the ladder, and the connecting block on the other side of the ladder being used to be clamped on the secondary guide rail, the main guide rail having a built-in rack running through the two sliders, and one of the sliders having a gear rotatably connected on the side edge to mesh with the rack.

[0007] A further optimization scheme of the utility model is as follows: a sprocket groove is provided in the middle of the gear tooth surface, and a sprocket block is rotatably connected to one side of one of the sliders, and a chain is meshedly connected between the sprocket block and the sprocket groove.

[0008] A further optimization scheme of the utility model: the middle position of the side of the sprocket block is concave, and the sprocket block chain teeth are arranged in the middle position of the sprocket block, and a rotating handle is arranged at one end of the sprocket block.

[0009] A further optimized solution of the utility model is as follows: a spring rod is fixedly connected to the connecting block installed on the connecting plate, and a plug block for penetrating the connecting block and the connecting plate is fixedly connected to the telescopic end of the spring rod.

[0010] A further optimized solution of the utility model is as follows: the sliding block is arranged in a U shape, and the connecting plate on the sliding block is slidably connected to the inner wall of the main guide rail.

[0011] A further optimized solution of the utility model: the secondary guide rail is arranged in an L shape, and the inner side wall of the secondary guide rail is slidably connected to the connecting block at the other end of the ladder.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the main guide rail and the secondary guide rail enable the ladder to be installed on the roof. The maintenance personnel move on the ladder along the vertical ridge of the roof. The gear can be rotated and the meshing connection between the gear and the rack is utilized to realize the rolling of the gear on the rack, thereby driving the slider to move, so that the connecting plate, the connecting block and the ladder can be moved along the positive ridge of the roof, and the position of the ladder can be adjusted, which can help the maintenance personnel reach any position on the side of the roof where the ladder is located for maintenance.

[0014] 2. In the utility model, by providing a connecting plate rotatably connected to the connecting block and a ladder hinged to the connecting block, the maintenance personnel only need to sit on the ridge of the roof and then rotate the ladder to make the ladder and the roof out of parallel state, and then use the connecting block to rotate to realize the ladder to the other side of the roof, and then swing the ladder to the other end of the connecting block and engage with the secondary guide rail on the other side of the roof to realize the ladder moving on the other side of the roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a folding ladder for sloping roof maintenance;

[0016] Figure 2 The utility model provides a cross-sectional structural diagram of the main guide rail of the folding ladder used for the maintenance of the sloped roof;

[0017] Figure 3This is a schematic diagram of the structure of the folding ladder slider used for the inspection and maintenance of a sloped roof proposed by the utility model;

[0018] Figure 4 for Figure 3 Schematic diagram of the top view structure.

[0019] Legend: 1. Ladder; 2. Secondary guide rail; 3. Main guide rail; 4. Rack; 5. Insert block; 6. Spring rod; 7. Sprocket block; 8. Connecting block; 9. Slider; 10. Gear; 11. Sprocket groove; 12. Chain; 13. Connecting plate. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] like Figure 1-4As shown, a folding ladder for maintenance of a sloping roof comprises a ladder 1, a main guide rail 3 for fixing on the ridge of the roof and a secondary guide rail 2 installed on the eaves of the roof, two sliders 9 are slidably connected in the main guide rail 3, a connecting plate 13 is fixedly connected between the two sliders 9, a connecting block 8 is rotatably connected to the top edge of the connecting plate 13, the connecting block 8 is hinged on one side of the ladder 1, the connecting block 8 is also hinged on the other side of the ladder 1, and the connecting block 8 on the other side of the ladder 1 is used to be clamped on the secondary guide rail 2, the main guide rail 3 has a rack 4 passing through the two sliders 9, and one of the sliders 9 is rotatably connected to a gear 10 meshing with the rack 4 on the side, when in use, the ladder 1 is hinged with the two connecting blocks 8, so that the two connecting blocks 8 are respectively assembled with the corresponding main guide rail 3 and secondary guide rail 2, so as to realize the ladder. 1 is adjusted to be parallel to the roof, and the maintenance personnel move on the ladder 1 along the vertical ridge of the roof, and can rotate the gear 10 and utilize the meshing connection between the gear 10 and the rack 4 to realize the rolling of the gear 10 on the rack 4, thereby driving the slider 9 to move, so that the connecting plate 13, the connecting block 8 and the ladder 1 can be moved along the ridge of the roof, and the position of the ladder 1 can be adjusted, which can help the maintenance personnel to reach any position on one side of the roof where the ladder 1 is located for maintenance. As for the other side of the roof, the maintenance personnel only need to sit on the ridge of the roof and then rotate the ladder 1 so that the ladder 1 is out of parallel with the roof, and then use the connecting block 8 to rotate, so that the ladder 1 can be rotated to the other side of the roof, and then the connecting block 8 at the other end of the ladder 1 can be swung to the other side to engage with the secondary guide rail 2 on the other side of the roof.

[0023] As a further optimization scheme of the utility model, its purpose is to adjust the horizontal position of the ladder 1 on the roof: a sprocket groove 11 is opened in the middle of the tooth surface of the gear 10, and one side of one of the sliders 9 is rotatably connected to a sprocket block 7, a chain 12 is meshed and connected between the sprocket block 7 and the sprocket groove 11, the middle part of the side of the sprocket block 7 is concave, and the sprocket teeth of the sprocket block 7 are arranged in the middle of the sprocket block 7, and a rotating handle is arranged at one end of the sprocket block 7, and the sprocket block 7 is rotated by rotating the handle, and the gear 10 is rotated under the transmission action of the chain 12, thereby realizing the rolling of the slider 9 on the surface of the rack 4.

[0024] As a further optimization scheme of the utility model, its purpose is to ensure that the ladder 1 on the side of the roof will not rotate or swing: a spring rod 6 is fixedly connected to the connecting block 8 installed on the connecting plate 13, and the telescopic end of the spring rod 6 is fixedly connected to an insert block 5 for penetrating the connecting block 8 and the connecting plate 13. The telescopic end of the spring rod 6 and the insert block 5 generate tension, forcing the insert block 5 to be inserted into the connecting block 8 and the connecting plate 13, thereby preventing the connecting block 8 from rotating on the connecting plate 13, thereby ensuring that when the connecting plate 13 slides with the slider 9, it can drive the connecting block 8 and the ladder 1 to move.

[0025] As a further optimization solution of the present utility model, the slider 9 and the connecting plate 13 are further explained: the slider 9 is arranged in a U shape, and the connecting plate 13 on the slider 9 is slidably connected to the inner wall of the main guide rail 3.

[0026] As a further optimization solution of the present invention, the secondary guide rail 2 is further explained: the secondary guide rail 2 is arranged in an L shape, and the inner wall of the secondary guide rail 2 is slidably connected to the connecting block 8 at the other end of the ladder 1.

[0027] Working principle: the main guide rail 3 is fixed at the main ridge of the roof, and the secondary guide rails 2 are fixed at the eaves on both sides. During maintenance, the personnel move up and down along the ladder 1 to inspect the direction of the roof ridge. After the inspection of the ridge direction of the area where the ladder 1 is located is completed, the handle is turned to rotate the sprocket block 7, and the gear 10 is rotated under the transmission action of the chain 12, and then the slider 9 rolls on the surface of the rack 4, driving the ladder 1 to move to other positions in the direction of the roof ridge, so that the personnel can inspect the ridges at other positions. After the inspection of one side of the roof is completed, the maintenance personnel only need to sit on the main ridge of the roof, and then rotate the ladder 1 to make the ladder 1 out of the parallel state with the roof, and then use the connecting block 8 to rotate, so that the ladder 1 can be rotated to the other side of the roof, and then the connecting block 8 at the other end of the ladder 1 can be swung to the secondary guide rail 2 on the other side of the roof.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A folding ladder for use in the maintenance of a sloped roof, comprising a climbing ladder (1), characterized in that: The invention also comprises a main guide rail (3) for fixing on the roof ridge and a secondary guide rail (2) installed on the roof eaves, wherein two sliders (9) are slidably connected in the main guide rail (3), a connecting plate (13) is fixedly connected between the two sliders (9), a connecting block (8) is rotatably connected to the top edge of the connecting plate (13), the connecting block (8) is hinged on one side of the ladder (1), the other side of the ladder (1) is also hinged with the connecting block (8), and the connecting block (8) on the other side of the ladder (1) is used to be clamped on the secondary guide rail (2), the main guide rail (3) is built with a rack (4) passing through the two sliders (9), and one of the sliders (9) is rotatably connected to the side edge with a gear (10) meshing with the rack (4).

2. The folding ladder for maintenance of a sloped roof according to claim 1 is characterized in that: A sprocket groove (11) is provided in the middle of the tooth surface of the gear (10), and a sprocket block (7) is rotatably connected to one side of one of the sliders (9), and a chain (12) is meshedly connected between the sprocket block (7) and the sprocket groove (11).

3. The folding ladder for maintenance of a sloped roof according to claim 2 is characterized in that: The middle part of the side of the sprocket block (7) is concave, and the sprocket teeth of the sprocket block (7) are arranged in the middle part of the sprocket block (7). A rotating handle is arranged at one end of the sprocket block (7).

4. The folding ladder for maintenance of a sloped roof according to claim 1, characterized in that: The connecting block (8) mounted on the connecting plate (13) is fixedly connected to a spring rod (6), and the telescopic end of the spring rod (6) is fixedly connected to an insert block (5) for penetrating the connecting block (8) and the connecting plate (13).

5. The folding ladder for maintenance of a sloped roof according to claim 1 is characterized in that: The sliding block (9) is arranged in a U shape, and the connecting plate (13) on the sliding block (9) is slidably connected to the inner wall of the main guide rail (3).

6. The folding ladder for maintenance of a sloped roof according to claim 1 is characterized in that: The secondary guide rail (2) is arranged in an L shape, and the inner side wall of the secondary guide rail (2) is slidably connected to a connecting block (8) at the other end of the ladder (1).

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