Elevator ladder stand

Abstract

The utility model relates to the technical field of elevators, in particular to an elevator ladder stand which comprises a fixed frame connected with an elevator base, a lower pedal is connected in the fixed frame, one end of the lower pedal is connected with the fixed frame through a rotating shaft, a sliding frame is sleeved on the outer side of the fixed frame, and an upper pedal is connected in the sliding frame. The sliding frame slides upwards and is connected with the fixed frame through a pin shaft; the upper pedal is lapped at the upper end of the fixed frame; according to the ladder stand, the overall length of the ladder stand can be increased, the height which the ladder stand can reach can be increased, the distance between the ladder stand and a platform is shortened, the convenience and safety of a worker climbing to the platform are improved, when the ladder stand is not used, the upper pedal can be stored, the length of the ladder stand is shortened, space is saved, and advancing stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to an elevator ladder. Background Technology

[0002] Scissor lifts are a common type of vertical lifting equipment, widely used in industries such as manufacturing, construction, logistics, and healthcare. Their core feature is the use of a scissor-type mechanical structure to achieve the lifting movement of the platform, offering advantages such as high stability, strong load-bearing capacity, and good safety.

[0003] The ladders installed on the side walls of the base of the scissor lift are mainly for workers to enter and exit the lifting platform. In order to save space and ensure safety, the ladders are relatively short, usually consisting of two steps. However, the distance between the top step and the lifting platform is still quite large, requiring workers to take a large step up to reach the platform, which is physically demanding and inconvenient, posing a safety hazard. Utility Model Content

[0004] This utility model addresses the aforementioned shortcomings of existing technologies by providing a lifting ladder that increases the overall length of the ladder, extends the height it can reach, shortens the distance between the ladder and the platform, and improves the convenience and safety for workers climbing to the platform.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A lifting ladder includes a fixed frame connected to the base of the lifting platform. A lower step is connected inside the fixed frame. One end of the lower step is connected to the fixed frame via a pivot. A sliding frame is fitted on the outside of the fixed frame. An upper step is connected inside the sliding frame. In use, the sliding frame slides upward and is connected to the fixed frame via a pin. The upper step rests on the upper end of the fixed frame.

[0007] Preferably, the side wall of the lower pedal is provided with a protrusion that mates with the inner wall of the fixing frame, and the inner wall of the fixing frame is provided with a support block for supporting the lower pedal.

[0008] Preferably, the outer wall of the fixed frame is provided with a guide groove, and the inner wall of the sliding frame is provided with a guide strip that cooperates with the guide groove.

[0009] Preferably, the end of the pin is provided with a pull ring, a spring is provided between the pull ring and the slide frame, and a positioning hole is provided on the side wall of the fixed frame.

[0010] Preferably, the inner wall of the fixed frame is provided with a backing plate, and the upper pedal rests against the side wall of the backing plate after being stored. The inner wall of the sliding frame is provided with a limiting block to restrict the rotation angle of the upper pedal.

[0011] Preferably, a reinforcing rod is connected to the side wall of the sliding frame.

[0012] Preferably, the number of lower pedals is two.

[0013] Preferably, the width of the upper pedal and the lower pedal is not less than 15cm.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model can increase the overall length of the ladder, extend the height that the ladder can reach, shorten the distance between the ladder and the platform, improve the convenience and safety of workers climbing to the platform, and when not in use, the upper step can be stored to shorten the ladder length, save space, and ensure the stability of the movement.

[0016] 2. The upper and lower pedals of this utility model can be rotated to open and close, which can ensure the width of the pedals, guarantee climbing safety, and save space when stored. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a structural diagram of a fixed frame;

[0020] Figure 4 This is a schematic diagram of the lower pedal structure;

[0021] Figure 5 This is a schematic diagram of the sliding frame and the upper pedal;

[0022] Figure 6 for Figure 2 A magnified structural diagram at point A;

[0023] Figure 7 This is a schematic diagram of the structure of this utility model in use;

[0024] In the diagram: 1-Fixed frame; 101-Guide groove; 102-Positioning hole; 103-Back plate; 104-Support block; 2-Lower pedal; 201-Protrusion; 3-Sliding frame; 301-Limiting block; 302-Reinforcing rod; 303-Guide strip; 304-Pull ring; 305-Spring; 306-Pin; 4-Upper pedal. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 , Figure 2 As shown, a lifting ladder includes a fixed frame 1 connected to the base of the lifting platform. The fixed frame 1 is connected to a lower step 2, and there are two lower steps 2, which is the same as the existing mechanism.

[0027] like Figure 4 As shown, one end of the lower pedal 2 is connected to the fixed frame 1 via a pivot. The side wall of the lower pedal 2 is provided with a protrusion 201 that mates with the inner wall of the fixed frame 1. The inner wall of the fixed frame 1 is provided with a support block 104 that supports the lower pedal 2. When in use, the lower pedal 2 is rotated 90° to open, and the bottom is supported by the support block 104. After use, the lower pedal 2 is rotated upward to retract and is fixed by the squeezing force between the protrusion 201 and the fixed frame 1.

[0028] The width between the upper step 4 and the lower step 2 is no less than 15cm to ensure climbing safety.

[0029] A sliding frame 3 is fitted onto the outer side of the fixed frame 1. An upper pedal 4 is connected inside the sliding frame 3. In use, the sliding frame 3 slides upward and is connected to the fixed frame 1 via a pin 306. The upper pedal 4 rests on the upper end of the fixed frame 1. When stored, the upper pedal 4 is located inside the lower pedal 2.

[0030] like Figure 3 As shown, a guide groove 101 is provided on the outer wall of the fixed frame 1, such as... Figure 5 As shown, the inner wall of the sliding frame 3 is provided with a guide strip 303 that cooperates with the guide groove 101.

[0031] like Figure 6 As shown, the end of the pin 306 is provided with a pull ring 304, and a spring 305 is provided between the pull ring 304 and the slide frame 3. The side wall of the fixed frame 1 is provided with a positioning hole 102. The positioning hole 102 can be provided in two positions, upper and lower, for fixing the slide frame 3 in two different states.

[0032] To improve the structural strength of the sliding frame 3, a reinforcing rod 302 is connected to the side wall of the sliding frame 3.

[0033] The inner wall of the fixed frame 1 is provided with a backing plate 103. After the upper pedal 4 is retracted, it rests against the side wall of the backing plate 103. The inner wall of the sliding frame 3 is provided with a limiting block 301 to restrict the rotation angle of the upper pedal 4, so that the upward rotation angle of the upper pedal 4 is less than 90° and greater than 80°. That is, the upper pedal 4 is tilted against one side of the backing plate 103, such as... Figure 7 As shown, when the sliding frame 3 slides upward, the upper pedal 4 will rotate downward under the action of gravity and press against the upper end of the fixed frame 1; when the sliding frame 3 slides downward, the lower end of the upper pedal 4 presses against the upper end of the backing plate 103, and under the pushing force of the backing plate 103, the upper pedal 4 rotates upward and is stored in one side of the backing plate 103.

[0034] When in use, the upper step 4 is raised to increase the overall length of the ladder, extend the height that the ladder can reach, and shorten the distance between the ladder and the platform, thereby improving the convenience and safety of workers climbing to the platform. When not in use, the upper step 4 can be stored to shorten the length of the ladder, save space, and ensure the stability of the movement.

[0035] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An elevator catwalk comprising a fixed frame connected to an elevator base, a lower step connected within the fixed frame, characterized in that: One end of the lower pedal is connected with the fixed frame through a rotating shaft, the outer side of the fixed frame is sleeved with a sliding frame, the sliding frame is connected with the upper pedal, in use, the sliding frame slides upward and is connected with the fixed frame through a pin shaft, and the upper pedal is placed on the upper end of the fixed frame.

2. A ladder hoist as claimed in claim 1 wherein: The side wall of the lower pedal is provided with a protrusion matched with the inner wall of the fixed frame, and the inner wall of the fixed frame is provided with a supporting block supporting the lower pedal.

3. A ladder hoist as defined in claim 1 wherein: The outer side wall of the fixed frame is provided with a guide groove, and the inner wall of the sliding frame is provided with a guide strip matched with the guide groove.

4. A ladder hoist as defined in claim 1 wherein: The end of the pin shaft is provided with a pull ring, a spring is arranged between the pull ring and the sliding frame, and the side wall of the fixed frame is provided with a positioning hole.

5. A ladder hoist as defined in claim 1 wherein: The inner wall of the fixed frame is provided with a backrest, the upper pedal is placed on the side wall of the backrest after being stored, and the inner wall of the sliding frame is provided with a limiting block limiting the rotation angle of the upper pedal.

6. A ladder hoist as defined in claim 1 wherein: The side wall of the sliding frame is connected with a reinforcing rod.

7. A ladder hoist as defined in claim 1 wherein: The number of the lower pedals is two.

8. A ladder hoist as defined in claim 1 wherein: The width of the upper pedal and the lower pedal is not less than 15 cm.

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