High-load-bearing aluminum alloy ladder stand for elevator shaft

Abstract

The utility model relates to the technical field of crawling ladders for elevator shafts, in particular to a high-load-bearing aluminum alloy crawling ladder for an elevator shaft, which is characterized in that locking devices are arranged above two hidden grooves, two support frames are arranged on the rear inner walls of the two hidden grooves, a fixed shaft is fixedly connected between the two support frames in the same hidden groove, and the fixed shaft is fixedly connected with the hidden grooves. The two fixed shafts are rotationally connected with two rotating blocks, ladder beams are arranged at one ends of the two rotating blocks on the same fixed shaft, a plurality of pedals with the same number are arranged on the surfaces of the opposite sides of the two ladder beams, the pedals on the two sides are connected through clamping devices, and anti-skid pads are arranged on the upper surfaces of the pedals. The aluminum alloy crawling ladder can be installed below a doorway of an elevator hall, due to connection of the pedals on the two sides, the width of the pedals of the aluminum alloy crawling ladder is increased, elevator maintenance personnel are not prone to missing steps, and personal injury is avoided.

Description

Technical Field

[0001] This utility model relates to the field of elevator shaft ladder technology, and in particular to a high load-bearing aluminum alloy ladder for elevator shafts. Background Technology

[0002] Nowadays, elevator pits are set up during elevator installation and construction. According to relevant elevator requirements, buffers, guide rails and other components need to be installed in the pit, and it must have a certain depth to provide sufficient space and safe buffer distance when the car hits the top or bottom. In order to facilitate access to the pit for installation or maintenance, a suitable ladder device is needed to enter the pit from the bottom.

[0003] For example, the authorized announcement number "CN204152420U" is named elevator shaft climbing device. It adopts a structure that combines the climbing body and the specially made climbing handrail. The climbing body is welded to the cross beam and side beam. The climbing body and the climbing handrail are fastened to the shaft wall by fasteners. Therefore, the structure is relatively simple, the manufacturing and installation process is less, and the cost is saved.

[0004] The above-mentioned and existing technologies have the following defects: the crossbeams of the ladder are made of angle steel, which has poor anti-slip effect. When elevator maintenance personnel use the ladder, their feet are easy to slip off the crossbeams, causing injury to the elevator maintenance personnel; the existing ladders are usually far from the elevator hall door. When climbing the ladder from the elevator hall door or climbing the ladder from the elevator hall door, a large step is required. Elevator maintenance personnel are prone to accidentally stepping into a hole, causing personal injury. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a high-load-bearing aluminum alloy ladder for elevator shafts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a high-load-bearing aluminum alloy ladder for elevator shafts, installed and fixed on the wall of the elevator shaft. The surface of the elevator shaft wall has an elevator hall entrance and two hidden slots, which are respectively located on both sides of the elevator hall entrance. Each of the two hidden slots is equipped with a locking device above it. Each of the two hidden slots has two support frames on its rear inner wall. The two support frames in the same hidden slot are fixedly connected to a fixed shaft. Each of the two fixed shafts is rotatably connected to two rotating blocks. One end of each of the two rotating blocks on the same fixed shaft is equipped with a ladder beam. The surface of each of the two ladder beams facing each other is equipped with an equal number of steps. The steps on both sides are connected by a snap-fit ​​device. The upper surface of each step is equipped with an anti-slip pad. The upper surface of each anti-slip pad is equipped with multiple anti-slip protrusions. Limiting blocks are provided between the upper and lower inner walls of the two hidden slots. A control switch is provided on the inner wall of the elevator shaft wall. The control switch is electrically connected to the locking device.

[0008] Preferably, the locking device includes multiple connecting blocks, each of which corresponds to and is connected to a plurality of left-side pedals. Each of the multiple connecting blocks has a connecting hole on its surface. Each of the multiple right-side pedals has a locking block at one end near the connecting block. One end of the locking block passes through the connecting hole. The distance by which the upper end of the right-side fixed shaft extends beyond the rotating block is greater than the height of the locking block.

[0009] Preferably, the locking device includes a mounting block, which is disposed on the inner wall of the elevator shaft wall. The surface of the mounting block is provided with a sliding cavity, and a cover plate is slidably connected to the inner wall of the sliding cavity. The upper surface of the cover plate is provided with an upper edge. Electric telescopic rods are provided on both sides of the upper end of the mounting block, and the upper ends of the two electric telescopic rods are connected to the lower surface of the upper edge.

[0010] Preferably, a return spring is sleeved on the outside of the fixed shaft on the right side. The upper end of the return spring is connected to the lower surface of the upper support frame, and the lower end of the return spring is connected to the upper surface of the upper rotating block.

[0011] Preferably, the inner wall of the elevator shaft is provided with multiple support blocks, the front surface of each of the multiple support blocks is provided with a positioning groove, the rear surface of each of the pedals is provided with a positioning block, the multiple positioning blocks correspond one-to-one with the multiple positioning grooves and match, and the positioning blocks extend into the positioning grooves.

[0012] Preferably, a reinforcing block is provided between two adjacent pedals on the same side.

[0013] This utility model proposes a high-load-bearing aluminum alloy ladder for elevator shafts. The advantages are as follows: This aluminum alloy ladder can be installed below the elevator lobby entrance. Due to the connection of the two side steps, the width of the ladder steps is increased, making it less likely for elevator maintenance personnel to slip and fall, thus preventing personal injury. Simultaneously, the upper surface of the ladder steps is equipped with anti-slip pads, and the upper surface of the anti-slip pads has multiple anti-slip protrusions, making the ladder highly slip-resistant. When using this ladder, elevator maintenance personnel are less likely to slip their feet off the steps, preventing injury. Attached Figure Description

[0014] Figure 1 This is a front sectional view of the present invention;

[0015] Figure 2 This is a top sectional view of the present invention;

[0016] Figure 3 This is an exploded view of the locking device structure of this utility model;

[0017] Figure 4 This is an enlarged view of position A in this utility model;

[0018] Figure 5 This is an enlarged view of position B in this utility model;

[0019] Figure 6 This is an enlarged view of position C of this utility model.

[0020] In the diagram: 1. Elevator shaft wall; 2. Elevator hall entrance; 3. Hidden groove; 4. Support frame; 5. Fixed shaft; 6. Rotating block; 7. Ladder beam; 8. Step; 9. Anti-slip mat; 10. Anti-slip protrusion; 11. Limiting block; 12. Control switch; 13. Connecting block; 14. Connecting hole; 15. Snap-fit ​​block; 16. Mounting block; 17. Sliding cavity; 18. Cover plate; 19. Upper edge; 20. Electric telescopic rod; 21. Return spring; 22. Support block; 23. Positioning groove; 24. Positioning block; 25. Reinforcing block. Detailed Implementation

[0021] 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.

[0022] Reference Figure 1-6A high-load-bearing aluminum alloy ladder for elevator shafts is installed and fixed on the wall 1 of the elevator shaft. The surface of the elevator shaft wall 1 is provided with an elevator hall entrance 2 and two hidden grooves 3. The two hidden grooves 3 are respectively located on both sides of the elevator hall entrance 2. A locking device is provided above each of the two hidden grooves 3. Two support frames 4 are provided on the inner wall of each of the two hidden grooves 3. A fixed shaft 5 is fixedly connected between the two support frames 4 in the same hidden groove 3. Two rotating blocks 6 are rotatably connected to each of the two fixed shafts 5. A ladder beam 7 is provided at one end of each of the two rotating blocks 6 on the same fixed shaft 5. The surface of each of the two ladder beams 7 facing each other is provided with an equal number of multiple steps 8. The steps 8 on both sides are connected by a snap-fit ​​device. The upper surface of each of the multiple steps 8 is provided with an anti-slip pad 9. The upper surface of each of the multiple anti-slip pads 9 is provided with multiple anti-slip protrusions 10. A limit block 11 is provided between the upper and lower inner walls of the two hidden grooves 3. A control switch 12 is provided on the inner wall of the elevator shaft wall 1. The control switch 12 is electrically connected to the locking device.

[0023] The locking device includes multiple connecting blocks 13, which correspond one-to-one with and are connected to multiple left-side pedals 8. Each of the multiple connecting blocks 13 has a connecting hole 14 on its surface. Each of the multiple right-side pedals 8 has a locking block 15 at one end near the connecting block 13. One end of the locking block 15 passes through the connecting hole 14. The distance by which the upper end of the right-side fixed shaft 5 extends beyond the rotating block 6 is greater than the height of the locking block 15.

[0024] The locking device includes a mounting block 16, which is installed on the inner wall of the elevator shaft wall 1. The surface of the mounting block 16 is provided with a sliding cavity 17, and a cover plate 18 is slidably connected to the inner wall of the sliding cavity 17. The upper surface of the cover plate 18 is provided with an upper edge 19. Electric telescopic rods 20 are provided on both sides of the upper end of the mounting block 16, and the upper ends of the two electric telescopic rods 20 are connected to the lower surface of the upper edge 19.

[0025] A return spring 21 is sleeved on the outside of the fixed shaft 5 on the right side. The upper end of the return spring 21 is connected to the lower surface of the support frame 4 above, and the lower end of the return spring 21 is connected to the upper surface of the rotating block 6 above.

[0026] The inner wall of the elevator shaft wall 1 is provided with multiple support blocks 22. The front surface of each support block 22 is provided with a positioning groove 23, and the rear surface of the step 8 is provided with a positioning block 24. The multiple positioning blocks 24 correspond to and match the multiple positioning grooves 23 one by one, and the positioning blocks 24 extend into the positioning grooves 23.

[0027] A reinforcing block 25 is provided between each of two adjacent pedals 8 on the same side.

[0028] Working principle: When using this aluminum alloy ladder, first operate the control switch 12. The locking device will activate the electric telescopic rod 20, causing it to extend and push the upper edge 19 upward. After the cover plate 18 disengages from the hidden groove 3, manually rotate the ladder beam 7 and the step 8 to below the elevator hall door 2. Then, lift the right-side ladder beam 7 and step 8, and insert the locking block 15 into the connecting hole 14. Under the weight of the right-side ladder beam 7 and step 8, and the elastic force of the return spring 21, the ladder will... The connecting hole 14 and the locking block 15 are engaged, allowing elevator maintenance personnel to descend into the elevator pit via this aluminum alloy ladder. When not in use, pulling the right-side step 8 disengages the locking block 15 from the connecting hole 14, allowing the ladder beam 7 and step 8 to rotate around the fixed axis 5 into the concealed groove 3. Then, activating the electric telescopic rod 20 shortens it, pulling the upper edge 19 down. Once the cover plate 18 conceals the aluminum alloy ladder, it is fully concealed. In summary, this aluminum alloy ladder can be installed below the elevator hall entrance 2 using the above operations. The connection of the two side steps 8 increases the width of the ladder steps 8, making it less likely for elevator maintenance personnel to misstep and preventing personal injury. Meanwhile, the upper surface of the step 8 of this aluminum alloy ladder is provided with an anti-slip pad 9, and the upper surface of the anti-slip pad 9 is provided with multiple anti-slip protrusions 10, which makes the anti-slip effect of this aluminum alloy ladder good. When elevator maintenance personnel use this ladder, their feet are not likely to slip off the step 8, thus avoiding injury to the elevator maintenance personnel.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-load-bearing aluminum alloy ladder for elevator shafts, installed and fixed on the wall (1) of the elevator shaft, characterized in that, The elevator shaft wall (1) surface is provided with an elevator hall entrance (2) and two hidden grooves (3). The two hidden grooves (3) are respectively located on both sides of the elevator hall entrance (2). A locking device is provided above each of the two hidden grooves (3). Two support frames (4) are provided on the inner rear wall of each of the two hidden grooves (3). A fixed shaft (5) is fixedly connected between the two support frames (4) in the same hidden groove (3). Two rotating blocks (6) are rotatably connected to each of the two fixed shafts (5). The two rotating blocks (6) on the same fixed shaft (5) are... One end is provided with a ladder beam (7), and the two ladder beams (7) are provided with an equal number of multiple pedals (8) on their opposite sides. The pedals (8) on both sides are connected by a snap-fit ​​device. The upper surface of the multiple pedals (8) is provided with anti-slip pads (9), and the upper surface of the multiple anti-slip pads (9) is provided with multiple anti-slip protrusions (10). The upper and lower inner walls of the two hidden grooves (3) are provided with limiting blocks (11). The inner wall of the elevator shaft wall (1) is provided with a control switch (12), and the control switch (12) is electrically connected to the locking device.

2. The high load-bearing aluminum alloy ladder for elevator shafts according to claim 1, characterized in that, The snap-fit ​​device includes multiple connecting blocks (13), each of which corresponds to and is connected to multiple left-side pedals (8). Each of the multiple connecting blocks (13) has a connecting hole (14) on its surface. Each of the multiple right-side pedals (8) has a snap-fit ​​block (15) at one end near the connecting block (13). One end of the snap-fit ​​block (15) passes through the connecting hole (14). The distance by which the upper end of the right-side fixed shaft (5) extends beyond the rotating block (6) is greater than the height of the snap-fit ​​block (15).

3. The high load-bearing aluminum alloy ladder for elevator shafts according to claim 1, characterized in that, The locking device includes a mounting block (16), which is set on the inner wall of the elevator shaft wall (1). The mounting block (16) has a sliding cavity (17) on its surface. A cover plate (18) is slidably connected to the inner wall of the sliding cavity (17). An upper edge (19) is provided on the upper surface of the cover plate (18). Electric telescopic rods (20) are provided on both sides of the upper end of the mounting block (16). The upper ends of the two electric telescopic rods (20) are connected to the lower surface of the upper edge (19).

4. A high-load-bearing aluminum alloy ladder for elevator shafts according to claim 2, characterized in that, A reset spring (21) is sleeved on the outside of the fixed shaft (5) on the right side. The upper end of the reset spring (21) is connected to the lower surface of the support frame (4) above, and the lower end of the reset spring (21) is connected to the upper surface of the rotating block (6) above.

5. A high-load-bearing aluminum alloy ladder for elevator shafts according to claim 1, characterized in that, The inner wall of the elevator shaft (1) is provided with multiple support blocks (22), and the front surface of each of the multiple support blocks (22) is provided with positioning grooves (23). The rear surface of each of the pedals (8) is provided with positioning blocks (24). The multiple positioning blocks (24) correspond one-to-one with the multiple positioning grooves (23) and the positioning blocks (24) extend into the positioning grooves (23).

6. A high-load-bearing aluminum alloy ladder for elevator shafts according to claim 1, characterized in that, A reinforcing block (25) is provided between each of the two adjacent pedals (8) on the same side.

Images