Folding ladder for elevator inspection

Abstract

The utility model provides a folding ladder for elevator inspection belongs to elevator ladder technical field, including main ladder, the hanging plate no.

Description

Technical Field

[0001] This utility model belongs to the field of elevator ladder technology, specifically relating to a folding ladder for elevator inspection. Background Technology

[0002] An elevator is a transportation device that serves the floors of a building. With the continuous construction of high-rise buildings in cities, elevators have gradually become a necessity of life. After a period of use, elevators need to be inspected regularly by staff to ensure their normal operation. Currently, when inspecting elevators, staff need to use an escalator to climb to the top of the elevator car for maintenance.

[0003] However, elevator cars are generally quite tall. In order for workers to climb from inside the car to the top, a long ladder is needed to provide support for the workers to climb. Using a long ladder not only makes the ladder heavier and inconvenient to carry and use, but also makes it difficult to enter and unfold the ladder due to the constraints of the interior space of the car, which is also inconvenient to use.

[0004] Therefore, a folding ladder for elevator inspection is proposed. Summary of the Invention

[0005] This utility model provides a folding ladder for elevator inspection, the purpose of which is to solve the problems mentioned above.

[0006] This utility model provides a folding ladder for elevator inspection, including a main ladder; a first hanging plate at the top of the main ladder; a support sleeve rotatably mounted on the outer wall of the main ladder; a support rod embedded in one end of the support sleeve; a plate base at one end of the support rod; a second hanging plate at the top of the plate base; inner pin holes equally spaced through the outer wall of the support rod; outer pin holes equally spaced through the outer wall of the support sleeve near one end; a fixing pin through the outer pin holes; a groove at the bottom of the support sleeve; a pull rod rotatably mounted on the inner wall of the groove; a fastening hole at one end of the pull rod; screw holes equally spaced on one side of the outer wall of the main ladder; and a screw threaded into the screw holes, the screw passing through the fastening holes.

[0007] Furthermore, a side ladder is rotatably connected to the outer wall of the main ladder near the top position.

[0008] Furthermore, the first hanging plate protrudes from the main ladder, and the second hanging plate protrudes from the plate base.

[0009] Furthermore, the centers of the inner pin hole and the outer pin hole are on the same plane, and the inner radii of the inner pin hole and the outer pin hole are the same.

[0010] Furthermore, when the support sleeve is perpendicular to the main ladder, the bottoms of hanging plate one and hanging plate two are on the same horizontal plane.

[0011] Furthermore, an outwardly protruding outer edge is provided on one side wall of the main ladder near the top, and the outer edge is rotatably connected to the side ladder.

[0012] The beneficial effects of this utility model are as follows: This utility model uses a short, single-climb main ladder, which effectively reduces the length and weight of the ladder, making it easy for workers to carry while also facilitating smooth operation inside the elevator car. Adjustable-spaced hanging plates one and two, when horizontal, can cover the outside of the elevator inspection opening to suspend and support the main ladder. A triangular support structure is formed by the tie rod, support sleeve, and main ladder, ensuring the stability of the hanging plates one and two. Suspended inside the elevator car, the main ladder allows workers to climb vertically upwards to reach the top of the car for maintenance. By installing side ladders that unfold together with the main ladder, their bottom ends are locked at the corners on both sides of the car, providing support for the unfolding angles of the main ladder and side ladders. This allows workers to reach the location of the cover plate for subsequent removal.

[0013] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the main ladder structure according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the strut sleeve structure according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the tie rod structure according to an embodiment of the present utility model; Figure 5 This is an embodiment of the present utility model. Figure 2 Enlarged diagram of point A in the diagram; Attached reference numerals: 1. Main ladder; 2. Side ladder; 3. Hanging plate one; 4. Support sleeve; 5. Support rod; 6. Plate base; 7. Hanging plate two; 8. Inner pin hole; 9. Outer pin hole; 10. Fixing pin; 11. Groove; 12. Pull rod; 13. Fastening hole; 14. Screw hole; 15. Screw. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example 1

[0016] Reference Figure 2-5This utility model embodiment proposes a folding ladder for elevator inspection, including a main ladder 1. Two hanging plates 3 are symmetrically arranged on the top of the main ladder 1, and two support sleeves 4 are symmetrically rotatably connected to the outer side wall of the main ladder 1. Support rods 5 are embedded in one side of each support sleeve 4. A plate base 6 is provided at one end of each support rod 5. A second hanging plate 7 is provided on the top side of the plate base 6 away from the support rod 5. Hanging plate 3 protrudes from the main ladder 1, and hanging plate 7 protrudes from the plate base 6. The protruding hanging plates 3 and 7... This allows it to be hung on the outside of the elevator inspection hole at the top of the elevator car, forming a support, thus suspending the main ladder 1 inside the elevator car. Workers can climb vertically upwards on the main ladder 1 to reach the top of the car for maintenance. When the support sleeve 4 is perpendicular to the main ladder 1, the bottoms of hanging plate 1 3 and hanging plate 2 7 are on the same horizontal plane, ensuring that hanging plate 1 3 and hanging plate 2 7 are stable when in contact with the top of the elevator car, allowing them to bear force evenly and ensuring the main ladder... 1. For the stability of vertical suspension, several through-holes 8 are evenly spaced on one side of the outer wall of the support rod 5, and an through-hole 9 is provided on one side of the outer wall of the support rod sleeve 4 near one end. The centers of the inner pin holes 8 and the outer pin holes 9 are on the same plane, and their inner radii are the same, allowing the fixing pin 10 to pass through the inner pin holes 8 and the outer pin holes 9, thereby fixing the support rod sleeve 4 and the support rod 5. This enables adjustment of the spacing between the first hanging plate 3 and the second hanging plate 7 to accommodate different elevator car tops. The size of the ladder inspection hole, the outer pin hole 9 and one of the inner pin holes 8 are penetrated by a fixing pin 10, the bottom of the support sleeve 4 is provided with a groove 11, the inner side wall of the groove 11 is rotatably connected to a pull rod 12, a fastening hole 13 is provided on one side of the outer wall of the pull rod 12 near one end, a number of screw holes 14 are provided in a straight line at equal intervals on one side of the outer wall of the main ladder 1, the screw holes 14 are connected to a screw rod 15 by thread, the screw rod 15 passes through the fastening hole 13, and one end of the screw rod 15 is provided with a screw head; To reduce the length and weight of the ladder and allow workers to climb to the top of the elevator car, in this embodiment, the main ladder 1 is moved into the elevator car. Since the main ladder 1 is a single ladder and is lightweight, workers can easily move it into the car. The distance between the first hanging plate 3 and the second hanging plate 7 is adjusted according to the size of the elevator inspection hole at the top of the elevator car so that when the first hanging plate 3 and the second hanging plate 7 are in a horizontal state, they can cover the outside of the elevator inspection hole. Specifically, the plate base 6 is pulled, and the support rod 5 on one side of the plate base 6 moves inside the support rod sleeve 4 to adjust the distance between the first hanging plate 3 and the second hanging plate 7. Then, the fixing pin 10 is passed through the inner pin hole 8 and the outer pin hole 9, which are in an overlapping state, to fix part of the support rod 5 inside the support rod sleeve 4. When suspending the main ladder 1 on the elevator inspection hole, first push one end of the pull rod 12 upward. Under the push of the pull rod 12, the support sleeve 4 rotates upward along the outer wall of the main ladder 1 until the first hanging plate 3 and the second hanging plate 7 can pass through the elevator inspection hole of the elevator car at the same time. Then, release the pushing force on the pull rod 12. Under the action of gravity, the support sleeve 4 rotates axially downward until the second hanging plate 7 rests on one side of the top of the elevator inspection hole. Then, screw 15 is passed through the fastening hole 13 on the pull rod 12 and screwed into the screw hole 14 to fix one end of the pull rod 12. The pull rod 12, the support sleeve 4 and the main ladder 1 form a triangular support structure to ensure the stability of the positions of the first hanging plate 3 and the second hanging plate 7. At this time, the main ladder 1 is suspended inside the elevator car. Workers can climb vertically upward on the main ladder 1 to reach the top of the car for maintenance of the equipment on the top of the car. Example 2

[0017] Reference Figure 1 This utility model embodiment also proposes a folding ladder for elevator inspection, including a main ladder 1 and a side ladder 2. The main ladder 1 and the side ladder 2 are set at a certain angle. An outwardly protruding outer edge is provided on one side wall of the main ladder 1 near the top position. The outer edge is rotatably connected to the side ladder 2. The setting of the outer edge ensures that the main ladder 1 and the side ladder 2 will not interfere with each other when they rotate relative to each other, thereby realizing the folding of the ladder. The folding ladder can be unfolded at a certain angle inside the elevator car so that the staff can climb to a high place, thereby achieving the function of removing the elevator inspection hole cover plate of the car. It can also adapt to the climbing needs in different environments. To facilitate the removal of the cover plate on the elevator inspection port of the elevator car, in this embodiment, a rotatable side ladder 2 is provided on one side of the top of the main ladder 1. The main ladder 1 and the side ladder 2 are short ladders. The main ladder 1 and the side ladder 2 are unfolded inside the car, and the bottom of the main ladder 1 and the side ladder 2 are stuck at the corners on both sides of the car to support the unfolding angle of the main ladder 1 and the side ladder 2. At this time, it can provide support for the staff so that the staff can reach the position where the cover plate is located, so as to achieve the purpose of subsequent removal.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A folding ladder for elevator inspection, characterized in that: Including the main ladder (1); A hanging plate (3) is provided at the top of the main ladder (1); and The strut sleeve (4) rotates on the outer wall of the main ladder (1); A strut (5) is embedded in one end of the strut sleeve (4). A plate base (6) is provided at one end of the support rod (5); Hanging plate two (7) is provided on the top of the plate base (6); The inner pin holes (8) are equally spaced through the outer wall of the support rod (5); The pin hole (9) is opened through the outer side of the outer wall of the support sleeve (4) near one end. A fixing pin (10) that passes through the interior of the outer pin hole (9); A groove (11) is formed at the bottom of the strut sleeve (4); A pull rod (12) that rotates on the inner wall of the groove (11); A fastening hole (13) is provided on one side of the pull rod (12); Screw holes (14) are equally spaced on one side of the outer wall of the main ladder (1). A screw (15) is threaded inside the screw hole (14) and the screw (15) passes through the fastening hole (13).

2. The folding ladder for elevator inspection according to claim 1, characterized in that: A side ladder (2) is rotatably connected to the outer wall of the main ladder (1) near the top.

3. The folding ladder for elevator inspection according to claim 1, characterized in that: The first hanging plate (3) protrudes from the main ladder (1), and the second hanging plate (7) protrudes from the plate base (6).

4. A folding ladder for elevator inspection according to claim 1, characterized in that: The centers of the inner pin hole (8) and the outer pin hole (9) are on the same plane, and the inner radii of the inner pin hole (8) and the outer pin hole (9) are the same.

5. A folding ladder for elevator inspection according to claim 1, characterized in that: When the support sleeve (4) and the main ladder (1) are perpendicular, the bottom of the first hanging plate (3) and the second hanging plate (7) are on the same horizontal plane.

6. A folding ladder for elevator inspection according to claim 2, characterized in that: The main ladder (1) has an outwardly protruding outer edge on one side wall near the top, and the outer edge is rotatably connected to the side ladder (2).

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