Movable aluminum ladder stand for elevator shaft

Abstract

The utility model relates to the technical field of crawling ladders for elevator shafts, in particular to a movable aluminum crawling ladder for an elevator shaft, which comprises aluminum crawling ladder bodies and a shaft wall, two rails are arranged on the front surface of the shaft wall, rail grooves are arranged on the upper surfaces and the lower surfaces of the two rails, two sliding units are arranged on the rear surfaces of the two aluminum crawling ladder bodies, and the sliding units are arranged in the rail grooves. The sliding unit comprises two supporting shafts, the rear ends of the two supporting shafts are rotationally connected with pulleys in sliding connection with the rail grooves, and locking devices are arranged at the rear ends of the two mounting blocks. According to the movable aluminum ladder stand, the two sliding units and the locking device are arranged, so that the movable aluminum ladder stand can move, and elevator maintenance personnel can move the movable aluminum ladder stand to a proper position, so that the elevator maintenance personnel can flexibly use the movable aluminum ladder stand to repair and maintain the bottom of a lift car and a bottom pit; meanwhile, the movable aluminum ladder stand is easy to operate, and elevator maintenance personnel can operate the movable aluminum ladder stand conveniently.

Description

Technical Field

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

[0002] An elevator shaft is the shaft through which elevators are installed. The dimensions of the shaft are determined according to the type of elevator selected. The portion of the shaft below the lowest floor served by the elevator car is called the pit, and a ladder is required to pass through the elevator pit.

[0003] For example, the authorization announcement number "CN219176245U" is named a suspended ladder for elevator shafts. The suspended ladder can support and fold the ladder body, so that the ladder is hidden in the ladder groove in the wall. This means that the suspended ladder does not occupy the internal space of the elevator shaft, avoids interference and scratches between the elevator car components and the ladder when the elevator is running, and improves the safety of the elevator shaft.

[0004] The above-mentioned and existing technologies have the following drawbacks: Since the suspended ladder cannot be moved, elevator maintenance personnel cannot move it to a suitable position, making it inconvenient for elevator maintenance personnel to flexibly use the suspended ladder to inspect and maintain the bottom of the car and the pit; at the same time, the operation of the suspended ladder is complicated, making it inconvenient for elevator maintenance personnel to operate. Utility Model Content

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

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

[0007] A movable aluminum ladder for elevator shafts is designed, comprising an aluminum ladder body and a shaft wall. The aluminum ladder body includes ladder beams and treads. The front surface of the shaft wall is provided with two tracks, and the upper and lower surfaces of the two tracks are provided with track grooves. The rear surfaces of the two aluminum ladder bodies are provided with two sliding units, each sliding unit including two support shafts. The two support shafts are both disposed on the rear surface of the aluminum ladder body. The rear ends of the two support shafts are rotatably connected to pulleys that are slidably connected to the track grooves. Mounting blocks are provided between two adjacent upper treads and between two adjacent lower treads. The rear ends of the two mounting blocks are provided with locking devices.

[0008] Preferably, the locking device includes two clamping units. Each clamping unit includes a fixing rod, a support block at the rear end of the fixing rod, a slider above the support block, a first sliding rod on the lower surface of the slider, the lower end of the first sliding rod sliding through the support block and having a locking block, a return spring fitted outside the first sliding rod, the upper end of the return spring connecting to the lower surface of the slider, the lower end of the return spring connecting to the upper surface of the support block, a second sliding rod on the lower surface of the slider, the lower end of the second sliding rod sliding through the support block and having an operating rod, a linkage rod on the lower surface of the upper operating rod, the lower end of the linkage rod sliding through the lower support block and connecting to the upper surface of the lower operating rod.

[0009] Preferably, each of the two operating rods has a limiting rod at its front end, and each of the two mounting blocks has a sliding hole on its surface. The front ends of the two limiting rods pass through the corresponding sliding holes and are provided with limiting end blocks.

[0010] Preferably, both operating levers are fitted with a first protective sleeve, and the lower surface of each of the two first protective sleeves is provided with multiple grip grooves, the number of which is four.

[0011] Preferably, both of the fixing rods are fitted with a second protective sleeve, and the upper surface of both second protective sleeves is provided with an arc-shaped groove.

[0012] Preferably, anti-collision blocks are provided at both the upper and lower ends of the two ladder beams.

[0013] The present invention provides a movable aluminum ladder for elevator shafts, which has the following advantages: the two sliding units and locking device enable the movable aluminum ladder to be moved, allowing elevator maintenance personnel to move it to a suitable position, making it convenient for them to flexibly use the movable aluminum ladder to inspect and maintain the car bottom and pit; at the same time, the movable aluminum ladder is simple to operate, making it easy for elevator maintenance personnel to operate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the sliding unit of this utility model;

[0016] Figure 3 This is a cross-sectional view of the locking device of this utility model;

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

[0018] In the diagram: 1. Aluminum ladder body; 2. Shaft wall; 3. Ladder beam; 4. Steps; 5. Track; 6. Track groove; 7. Support shaft; 8. Pulley; 9. Mounting block; 10. Fixing rod; 11. Support block; 12. Sliding block; 13. First sliding rod; 14. Locking block; 15. Return spring; 16. Second sliding rod; 17. Operating rod; 18. Linkage rod; 19. Limiting rod; 20. Sliding hole; 21. Limiting end block; 22. First protective sleeve; 23. Grip groove; 24. Second protective sleeve; 25. Anti-collision block. Detailed Implementation

[0019] 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.

[0020] Reference Figure 1-4 A movable aluminum ladder for elevator shafts includes an aluminum ladder body 1 and a shaft wall 2. The aluminum ladder body 1 includes a ladder beam 3 and a step 4. The front surface of the shaft wall 2 is provided with two tracks 5, and the upper and lower surfaces of the two tracks 5 are provided with track grooves 6. The rear surfaces of the two aluminum ladder bodies 1 are each provided with two sliding units, each sliding unit including two support shafts 7. The two support shafts 7 are both set on the rear surface of the aluminum ladder body 1. The rear ends of the two support shafts 7 are rotatably connected to pulleys 8 that are slidably connected to the track grooves 6. Mounting blocks 9 are provided between the two adjacent upper steps 4 and between the two adjacent lower steps 4. The rear ends of the two mounting blocks 9 are provided with locking devices.

[0021] The locking device includes two clamping units. Each clamping unit includes a fixing rod 10. A support block 11 is provided at the rear end of the fixing rod 10. A slider 12 is provided above the support block 11. A first sliding rod 13 is provided on the lower surface of the slider 12. The lower end of the first sliding rod 13 slides through the support block 11 and is provided with a locking block 14. A return spring 15 is fitted on the outside of the first sliding rod 13. The upper end of the return spring 15 is connected to the lower surface of the slider 12, and the lower end of the return spring 15 is connected to the upper surface of the support block 11. A second sliding rod 16 is provided on the lower surface of the slider 12. The lower end of the second sliding rod 16 slides through the support block 11 and is provided with an operating rod 17. A linkage rod 18 is provided on the lower surface of the upper operating rod 17. The lower end of the linkage rod 18 slides through the lower support block 11 and is connected to the upper surface of the lower operating rod 17.

[0022] Both operating levers 17 have a limiting rod 19 at their front ends, and both mounting blocks 9 have sliding holes 20 on their surfaces. The front ends of the two limiting rods 19 pass through the corresponding sliding holes 20 and are equipped with limiting end blocks 21. The limiting rods 19 slide within the sliding holes 20, which allows the operating levers 17 to move up and down more smoothly.

[0023] Both operating levers 17 are fitted with first protective sleeves 22. The first protective sleeves 22 are made of silicone. The first protective sleeves 22 are designed to facilitate gripping of the operating levers 17. The lower surface of each of the two first protective sleeves 22 is provided with multiple grip grooves 23. There are four grip grooves 23. The grip grooves 23 are designed to facilitate the insertion of fingers into the grip grooves 23, which serves to prevent slipping.

[0024] Both fixing rods 10 are fitted with second protective sleeves 24, which are made of silicone. These sleeves facilitate pressing the fixing rods 10. Both second protective sleeves 24 have arc-shaped grooves on their upper surfaces. These grooves allow the palm of the hand to rest comfortably within them, providing a non-slip surface.

[0025] Both ends of the two stair beams 3 are equipped with anti-collision blocks 25. The anti-collision blocks 25 are made of silicone and are designed to prevent elevator maintenance personnel from bumping into them.

[0026] Working principle: When the aluminum ladder body 1 needs to be moved, when the operator is above the pit, he / she presses the upper fixed rod 10 with his / her palm and grips the upper operating rod 17 with his / her fingers. The grip force drives the upper operating rod 17 to move upward, thereby pulling the upper first sliding rod 13, causing the upper locking block 14 to disengage from the track groove 6. Through the connecting action of the linkage rod 18, the lower locking block 14 also disengages from the track groove 6. Then the aluminum ladder body 1 can be moved. By rolling the pulley 8 in the track groove 6, the aluminum ladder body 1 can be adjusted to a suitable position. Then, the operating rod 17 is released. Under the tension of the return spring 15, the locking block 14 can be reset, so that the locking block 14 is tightly attached to the track groove 6. When the operator is below the pit, the same operation is performed to move the aluminum ladder body 1. In summary, this movable aluminum ladder is mobile, allowing elevator maintenance personnel to move it to a suitable location for easy inspection and maintenance of the car floor and pit. Furthermore, this movable aluminum ladder is simple to operate, making it convenient for elevator maintenance personnel to use.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A movable aluminium cat ladder for an elevator shaft, comprising an aluminium cat ladder body (1) and a shaft wall (2), characterised in that, The aluminum ladder body (1) includes a ladder beam (3) and a step (4), the front surface of the shaft wall body (2) is provided with two tracks (5), the upper and lower surfaces of the two tracks (5) are provided with track grooves (6), the rear surface of the two aluminum ladder bodies (1) is provided with two sliding units, the sliding unit includes two support shafts (7), the two support shafts (7) are arranged on the rear surface of the aluminum ladder body (1), the rear end of the two support shafts (7) is rotatably connected with a pulley (8) which is slidably connected with the track groove (6), the mounting block (9) is arranged between the adjacent two steps (4) above and the adjacent two steps (4) below, and the rear end of the two mounting blocks (9) is provided with a locking device.

2. A mobile aluminium ladder for an elevator shaft according to claim 1, characterized in that The locking device includes two abutting units, the abutting unit includes a fixed rod (10), the rear end of the fixed rod (10) is provided with a supporting block (11), the upper surface of the supporting block (11) is provided with a sliding block (12), the lower surface of the sliding block (12) is provided with a first sliding rod (13), the lower end of the first sliding rod (13) is slidably penetrated through the supporting block (11) and is provided with a locking block (14), the first sliding rod (13) is externally sleeved with a reset spring (15), the upper end of the reset spring (15) is connected with the lower surface of the sliding block (12), the lower end of the reset spring (15) is connected with the upper surface of the supporting block (11), the lower surface of the sliding block (12) is provided with a second sliding rod (16), the lower end of the second sliding rod (16) is slidably penetrated through the supporting block (11) and is provided with an operating rod (17), the lower surface of the operating rod (17) above is provided with a linkage rod (18), the lower end of the linkage rod (18) is slidably penetrated through the supporting block (11) below and is connected with the upper surface of the operating rod (17) below.

3. A mobile aluminium ladder for an elevator shaft according to claim 2, characterized in that The front end of the two operating rods (17) is provided with a limiting rod (19), the surface of the two mounting blocks (9) is provided with a sliding hole (20), the front end of the two limiting rods (19) penetrates through the corresponding sliding hole (20) and is provided with a limiting end block (21).

4. A portable aluminum ladder for an elevator shaft according to claim 2, wherein The outer part of the two operating rods (17) is sleeved with a first protective sleeve (22), the lower surface of the two first protective sleeves (22) is provided with a plurality of holding grooves (23), and the number of the holding grooves (23) is four.

5. A mobile aluminium ladder for an elevator shaft according to claim 4, characterized in that The outer part of the two fixed rods (10) is sleeved with a second protective sleeve (24), and the upper surface of the two second protective sleeves (24) is provided with an arc-shaped groove.

6. A portable aluminum ladder for an elevator shaft according to claim 1, wherein The upper and lower ends of the two ladder beams (3) are provided with anti-knock blocks (25).

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