A pull-up ladder assisted boarding device

Abstract

The utility model discloses a kind of pull-out cat ladder auxiliary boarding devices, including guiding frame mounted on truck frame and cat ladder movably mounted in movable frame inside, the both sides of guiding frame are equipped with guide port, and the both sides of cat ladder are equipped with fixed bolt, and fixed bolt is slidably arranged in guide port, and one end of guiding frame is equipped with notch, and the side of cat ladder towards notch is equipped with cover plate by hinging member, and one end of guiding frame opening is equipped with connecting rod, and connecting rod is equipped with the locking mechanism of fixed cat ladder and cover plate. The utility model is simple in structure, cat ladder can be pulled out and used along guide port, and after pulling out, cat ladder can be placed on the placing part by tilting, facilitate the boarding and alighting of staff, and after covering cover plate, the surface of cat ladder is flattened, goods can be pulled along cover plate, play the role of a moving platform, increase adaptability.

Description

Technical Field

[0001] This utility model relates to the field of vehicle boarding assistance technology, specifically to a pull-out ladder assisting vehicle boarding device. Background Technology

[0002] Vehicle ladders are installed on the side or rear of truck beds to allow personnel to get on and off the truck bed for work and to access goods. They are also called boarding ladders or work ladders, or a type of mobile frame. However, they take up a lot of space, are inconvenient to carry, and have poor performance. When moving goods, objects push against living things along the surface of the ladder, affecting the effectiveness of use. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a pull-out ladder auxiliary boarding device, which can be pulled out and retracted, is easy to use, and can flatten the climbing frame through the cover plate, so as to solve the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution: a pull-out ladder auxiliary boarding device, including a guide frame installed on a truck frame and a ladder movably installed inside the movable frame. The guide frame has guide openings on both sides, and fixing bolts are installed on both sides of the ladder. The fixing bolts are slidably disposed in the guide openings. One end of the guide frame has a notch, and a cover plate is installed on the side of the ladder facing the notch through a hinge. A connecting rod is installed on one end of the guide frame opening, and a locking mechanism for fixing the ladder and the cover plate is installed on the connecting rod.

[0005] As a preferred technical solution, the ladder has first screw holes on both sides, and the shank of the fixing bolt passes through the guide port and is threaded into the first screw hole. The diameter of the end cap on the fixing bolt is larger than the width of the guide port, and the inner side of the end cap is in contact with the outer side of the guide frame.

[0006] As a preferred technical solution, multiple limiting plates are installed on both sides of the guide frame. The limiting plates are all set in an "L" shape. The inner side of the limiting plates is in contact with the end cap on the fixing bolt. A channel is formed between the limiting plates for the fixing bolt to be removed from the ladder. Multiple connecting ears are installed on the outer side of the limiting plates.

[0007] As a preferred technical solution, the locking mechanism includes a hand-tightening bolt, a second screw hole on the connecting rod, a third screw hole matching the second screw hole at one end of the ladder, a fourth screw hole matching the third screw hole at one end of the cover plate, and the hand-tightening bolt is threaded into the second screw hole.

[0008] As a preferred technical solution, a placement part is provided on one side of the connecting rod at an angle, and the ladder is placed at an angle on the placement part.

[0009] As a preferred technical solution, the cover plate is made of metal material, and the outer surface of the cover plate is provided with anti-slip texture.

[0010] As a preferred technical solution, the diameter of the fixing bolt shank matches the width of the guide opening.

[0011] The beneficial effects of this utility model are: the utility model has a simple structure, the ladder can be pulled out along the guide opening, and after being pulled out, the ladder can be tilted and placed on the placement part, which facilitates the workers to get on and off vehicles. After the cover plate is closed, the surface of the ladder is flattened, and the goods can be pulled along the cover plate, which plays the role of a mobile platform and increases adaptability. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model after the cover plate is removed; Figure 3 This is a bottom view of the present invention; Figure 4 This is a schematic diagram of the ladder structure of this utility model.

[0014] The components include: 1. Guide frame; 2. Ladder; 3. Cover plate; 4. Guide opening; 5. Limiting plate; 6. Connecting ear; 7. Third screw hole; 8. Fourth screw hole; 9. Notch; 10. Connecting rod; 11. Hand-tightening bolt; 12. Fixing bolt. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0016] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0017] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0018] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a pull-out ladder-assisted boarding device, which includes a guide frame 1 installed on a truck frame and a ladder 2 movably installed inside the movable frame. The guide frame 1 has guide openings 4 on both sides, and fixing bolts 12 are installed on both sides of the ladder 2. The fixing bolts 12 are slidably disposed in the guide openings 4. One end of the guide frame 1 has a notch 9. A cover plate 3 is installed on the side of the ladder 2 facing the notch 9 through a hinge. A connecting rod 10 is installed on one end of the opening of the guide frame 1, and a locking mechanism for fixing the ladder 2 and the cover plate 3 is installed on the connecting rod 10.

[0019] In this embodiment, the ladder 2 is provided with first screw holes on both sides. The rod of the fixing bolt 12 passes through the guide port 4 and is threaded into the first screw hole. The diameter of the end cap on the fixing bolt 12 is greater than the width of the guide port 4, and the inner side of the end cap is in contact with the outer side of the wire frame.

[0020] In this embodiment, multiple limiting plates 5 are installed on both sides of the guide frame 1. The limiting plates 5 are all arranged in an "L" shape. The inner side of the limiting plates 5 is in contact with the end cap on the fixing bolt 12. A channel is formed between the limiting plates 5 for the fixing bolt 12 to be taken out from the ladder 2. Multiple connecting ears 6 are installed on the outer side of the limiting plates 5. The limiting plate can limit the outer side of the fixing bolt, preventing it from falling out of the guide hole on its own. This ensures that the fixing bolt can only be removed from the first screw hole in a specific position. After pushing the ladder so that the fixing bolt is aligned with the channel, the fixing bolt can be removed outward. After the fixing bolt is no longer limited, the ladder can be removed from the guide frame, which facilitates its disassembly and replacement.

[0021] In this embodiment, the locking mechanism includes a hand-tightening bolt 11, a second screw hole on the connecting rod 10, a third screw hole 7 matching the second screw hole at one end of the ladder 2, a fourth screw hole 8 matching the third screw hole 7 at one end of the cover plate 3, and the hand-tightening bolt 11 is threaded into the second screw hole.

[0022] In this embodiment, a placement part is provided on one side of the connecting rod 10 at an angle, and the ladder 2 is placed at an angle on the placement part.

[0023] In this embodiment, the cover plate 3 is made of metal material, and the outer surface of the cover plate 3 is provided with anti-slip texture.

[0024] In this embodiment, the diameter of the fixing bolt 12 rod is matched with the width of the guide opening 4, so that the fixing bolt can move stably inward or outward along the guide opening.

[0025] Working principle: The ladder can be pulled outward along the guide opening. The movement of the ladder drives the fixing bolt, which can move along the guide opening. The ladder rotates around the fixing bolt, causing the ladder to be placed at an angle on the placement part, so that the staff can climb up and down the vehicle. Among them, when handling goods, the cover can be closed to flatten the surface of the ladder, allowing the goods to be placed on the surface of the panel and pushed upwards until they enter the cargo box, thus increasing adaptability; When not in use, cover the ladder and push it into the guide frame along the guide opening. At this time, the second, third and fourth screw holes will be positioned opposite each other. The hand-tightened bolts can be threaded into the second, third and fourth screw holes, thereby positioning the ladder and cover on the guide frame to ensure stability.

[0026] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A pull-out ladder-assisted boarding device, characterized in that: The system includes a guide frame (1) mounted on the truck frame and a ladder (2) movably mounted inside the movable frame. The guide frame (1) has guide openings (4) on both sides, and fixing bolts (12) are installed on both sides of the ladder (2). The fixing bolts (12) are slidably disposed in the guide openings (4). One end of the guide frame (1) has a notch (9). A cover plate (3) is installed on the side of the ladder (2) facing the notch (9) through a hinge. A connecting rod (10) is installed on one end of the opening of the guide frame (1), and a locking mechanism for fixing the ladder (2) and the cover plate (3) is installed on the connecting rod (10).

2. The pull-out ladder assisted boarding device according to claim 1, characterized in that: The ladder (2) has first screw holes on both sides. The rod of the fixing bolt (12) passes through the guide port (4) and is threaded into the first screw hole. The diameter of the end cap on the fixing bolt (12) is greater than the width of the guide port (4). The inner side of the end cap is in contact with the outer side of the wire frame.

3. The pull-out ladder assisted boarding device according to claim 1, characterized in that: Multiple limiting plates (5) are installed on both sides of the guide frame (1). The limiting plates (5) are all set in an "L" shape. The inner side of the limiting plates (5) is in contact with the end cap on the fixing bolt (12). A channel is formed between the limiting plates (5) for the fixing bolt (12) to be taken out from the ladder (2). Multiple connecting ears (6) are installed on the outer side of the limiting plates (5).

4. The pull-out ladder assisted boarding device according to claim 1, characterized in that: The locking mechanism includes a hand-tightening bolt (11), a second screw hole on the connecting rod (10), a third screw hole (7) matching the second screw hole at one end of the ladder (2), a fourth screw hole (8) matching the third screw hole (7) at one end of the cover plate (3), and the hand-tightening bolt (11) is threaded into the second screw hole.

5. The pull-out ladder assisted boarding device according to claim 1, characterized in that: The connecting rod (10) has a placement part on one side at an angle, and the ladder (2) is placed at an angle on the placement part.

6. The pull-out ladder assisted boarding device according to claim 1, characterized in that: The cover plate (3) is made of metal and has anti-slip texture on the outer side surface.

7. The pull-out ladder assisted boarding device according to claim 1, characterized in that: The diameter of the fixing bolt (12) rod is matched with the width of the guide opening (4).

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