Multi-angle fixed automobile crawling ladder

Abstract

A car ladder that can be fixed at multiple angles includes: a ladder body assembly, a footboard assembly, a top movable connecting assembly, and a bottom movable overlapping assembly. The top movable connecting assembly includes a connecting plate, a first connecting member, and a second connecting member. The connecting plate is rotatable and fits against the car platform, and is fixed to the car platform by the second connecting member. The bottom movable overlapping assembly includes a connecting pin and a rotating overlapping seat. One end of the connecting pin is detachably located below the ladder body assembly, and the other end of the connecting pin has a rotating connecting part. The rotating overlapping seat is a long strip structure parallel to the footboard assembly, and has a rotating groove that rotatably connects with the rotating connecting part. The rotating overlapping seat can rotate and overlap the side of the car. This invention allows for adjustment of the angle and position of the connection points between the ladder body assembly and the roof and side of the car, effectively overcoming the limitation of traditional ladders being "one ladder per car" and achieving "one ladder for multiple uses."

Description

Technical Field

[0001] This utility model relates to the field of vehicle modification parts technology, and in particular to a car ladder that can be fixed at multiple angles. Background Technology

[0002] With the increasing popularity of SUVs and off-road vehicles, which offer excellent off-road capability and spacious interiors, using the roof for cargo transport has become an important way to meet the extra luggage loading needs of family commutes and long-distance road trips. Users typically use the roof strips built into the sides of the vehicle to secure large or oversized items such as bicycles, surfboards, roof boxes, or roof tents. In such loading and unloading scenarios, car ladders become a crucial auxiliary piece of equipment to facilitate personnel access to the vehicle. Common car ladders are usually mounted sideways to the vehicle body, with their top fixed to the roof strip or platform and their bottom supported by the side panel of the vehicle.

[0003] However, existing car ladders face significant compatibility challenges. Due to substantial differences in vehicle height, side profile curves, door designs, and roof trim locations among different brands and models, most mainstream car ladder products on the market are designed specifically for particular vehicle models. This "one car, one ladder" approach limits the product's adaptability, making it difficult to adjust for different vehicle specifications. Therefore, there is an urgent need in the current technological field for a highly adaptable, flexibly adjustable universal car ladder compatible with various vehicle profiles and heights. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a car ladder that can be fixed at multiple angles.

[0005] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a car ladder that can be fixed at multiple angles, including: a ladder body assembly, a footboard assembly, a top movable connecting assembly and a bottom movable overlapping assembly; Two ladder components are spaced apart; two pedal components are spaced apart along the longitudinal direction and connected between the two ladder components. The top movable connecting assembly includes a connecting plate, a first connecting member, and a second connecting member; one side of the connecting plate is rotatably mounted above the ladder assembly via the first connecting member; the connecting plate is rotatable and fits against the vehicle platform, and is fixed to the vehicle platform via the second connecting member; The bottom movable overlapping assembly includes a connecting pin and a rotating overlapping seat; one end of the connecting pin is detachably disposed below the ladder assembly, and the other end of the connecting pin is provided with a rotating connecting part; the rotating overlapping seat is a long strip structure parallel to the pedal assembly, and is provided with a rotating groove that is rotatably connected to the rotating connecting part; the rotating overlapping seat can rotate and overlap the side of the vehicle.

[0006] Optionally, a bottom step is provided between the bottoms of the two ladder assemblies; the connecting pin is installed on the bottom step.

[0007] Optionally, the rotating connection part is a cylindrical structure; the rotating groove is a circular through hole structure with two sides, and one side of the rotating groove has a rotating clearance opening.

[0008] Optionally, the width of the rotation clearance opening is greater than the width of the pin of the connecting pin, and the width of the rotation clearance opening is less than the diameter of the rotating connection.

[0009] Optionally, the rotating groove is provided with a limiting anti-detachment component to prevent the rotating connection part from detaching from the rotating groove.

[0010] Optionally, the rotating groove is provided with an annular groove, and the limiting and anti-disengagement component is a retaining spring embedded in the annular groove.

[0011] Optionally, the end of the rotating groove is provided with an internal thread, and the limiting and anti-disengagement component is a bolt that is threaded to the end of the rotating groove.

[0012] Optionally, a magnetic suction plate is embedded on the side of the rotating lap seat away from the rotating groove.

[0013] Optionally, a buffer pad is provided on the side of the rotating lap seat away from the rotating groove; the buffer pad is located on the outside of the magnetic suction plate.

[0014] Optionally, the ladder assembly is divided into an upper ladder and a lower ladder; elongated connecting holes are provided below the upper ladder and above the lower ladder; the upper ladder and the lower ladder are connected by a central connecting plate and bolts.

[0015] The beneficial effects of this utility model are as follows: Through the coordinated design of the top movable connecting component and the bottom movable overlapping component, this utility model can flexibly adapt to the differences in vehicle height, side profile curvature, and roof luggage strip position of different vehicle models. The connection points between the ladder assembly and the roof and side of the vehicle can be adjusted in angle and position, effectively overcoming the limitation of traditional ladders that are "one ladder per vehicle" and realizing "one ladder for multiple uses". The top connecting plate can rotate to fit the vehicle platform and is firmly fixed by the second connecting component, ensuring the connection strength of the top of the ladder. The rotating connection structure of the bottom rotating overlapping seat and the connecting pin, combined with the magnetic attraction and buffer design, allows the bottom of the ladder to fit tightly and stably onto the vehicle body with different curvatures, effectively preventing slippage and shaking during use and greatly improving the safety of working at height.

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the car ladder of this utility model; Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0018] Explanation of key component symbols: 10. Ladder assembly; 11. Upper ladder; 12. Lower ladder; 13. Long strip connecting hole; 14. Middle connecting plate; 20. Pedal assembly; 30. Top movable connecting assembly; 31. Connecting plate; 32. First connecting piece; 33. Second connecting piece; 40. Bottom movable overlapping assembly; 41. Connecting pin; 411. Rotating connecting part; 42. Rotating overlapping seat; 421. Rotating groove; 422. Rotating clearance opening; 43. Magnetic suction plate; 44. Buffer pad; 50. Bottom pedestal. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Example Reference Figure 1 and Figure 2 The present invention proposes a car ladder that can be fixed at multiple angles, comprising: a ladder assembly 10, a step assembly 20, a top movable connecting assembly 30, and a bottom movable overlapping assembly 40; Two ladder components 10 are spaced apart; two tread components 20 are spaced apart along the longitudinal direction and are connected between the two ladder components 10. The top movable connection assembly 30 includes a connection plate 31, a first connection member 32, and a second connection member 33; one side of the connection plate 31 is rotatably mounted above the ladder assembly 10 via the first connection member 32; the connection plate 31 is rotatable and fits against the vehicle platform, and is fixed to the vehicle platform via the second connection member 33. The bottom movable overlap assembly 40 includes a connecting pin 41 and a rotating overlap seat 42; one end of the connecting pin 41 is detachably disposed below the ladder assembly 10, and the other end of the connecting pin 41 is provided with a rotating connection part 411; the rotating overlap seat 42 is a long strip structure of the parallel pedal assembly 20, and is provided with a rotating groove 421 that is rotatably connected to the rotating connection part 411; the rotating overlap seat 42 can rotate and overlap the side of the car.

[0024] In this invention, through the coordinated design of the top movable connecting component 30 and the bottom movable overlapping component 40, the invention can flexibly adapt to the differences in vehicle height, side profile curvature, and roof luggage strip position of different vehicle models. The connection points between the ladder assembly 10 and the roof and sides of the vehicle can be adjusted in angle and position, effectively overcoming the limitations of traditional ladders that are "one ladder per vehicle," and achieving "multi-purpose ladder." The top connecting plate 31 can rotate to fit the vehicle platform and is firmly fixed by the second connecting component 33, ensuring the connection strength of the top of the ladder. The rotating connection structure of the bottom rotating overlapping seat 42 and the connecting pin 41, combined with magnetic attraction and buffer design, allows the bottom of the ladder to fit tightly and stably onto the vehicle body with different curvatures, effectively preventing slippage and shaking during use, and greatly improving the safety of working at heights.

[0025] In this embodiment, a bottom step 50 is provided between the bottoms of the two ladder components 10; a connecting pin 41 is installed on the bottom step 50. The bottom step 50 connects the bottoms of the two ladder components 10, enhancing the overall structural integrity and stability of the entire ladder bottom and preventing the bottom from deforming due to force; it provides the user with the lowest stepping point, increasing practicality and safety; and it provides a centralized and robust mounting base for the connecting pin 41, optimizing the force transmission path.

[0026] In this embodiment, the rotating connecting part 411 is a cylindrical structure; the rotating groove 421 is a circular through-hole structure with two sides, and a rotating clearance opening 422 on one side of the rotating groove 421. The cylindrical rotating connecting part 411 and the circular through-hole rotating groove 421 cooperate to achieve smooth and reliable axial rotation, allowing the rotating mounting seat 42 to swing freely to fit the vehicle body. The rotating clearance opening 422 allows the rotating connecting part 411 of the connecting pin 41 to be inserted into or removed laterally from the rotating groove 421, realizing the "quick disassembly" function of the bottom connection, which facilitates the storage and transportation of the ladder.

[0027] Specifically, the width of the rotation clearance opening 422 is greater than the width of the pin of the connecting pin 41, and the width of the rotation clearance opening 422 is less than the diameter of the rotating connection part 411. The width of the rotation clearance opening 422 being greater than the width of the pin of the connecting pin 41 ensures that the pin can pass smoothly through the clearance opening for assembly and disassembly; while the width being less than the diameter of the rotating connection part 411 constitutes a reliable "anti-detachment" structure, preventing the rotating connection part 411 from accidentally sliding out of the rotation clearance opening 422 during use, thereby ensuring the continuous safety and stability of the connection.

[0028] In this embodiment, a limiting anti-detachment component is provided in the rotating groove 421 to prevent the rotating connection part 411 from detaching from the rotating groove 421. By using an independent mechanical component, the axial detachment of the rotating connection part 411 from the rotating groove 421 is actively restricted structurally, ensuring the absolute reliability of the bottom rotating connection mechanism even under severe vibration or accidental impact, further improving the safety level of the product.

[0029] In some embodiments, an annular groove is provided within the rotating slot 421, and the limiting and anti-detachment component is a retaining spring embedded in the annular groove. Using a retaining spring as the limiting and anti-detachment component and embedding it in the annular groove achieves a flat limiting structure without protrusions. This design does not increase the volume of the component, avoids scratches or interference that may be caused by protrusions such as bolt heads, and is convenient to install with a compact and reliable structure.

[0030] In some embodiments, the end of the rotating groove 421 is provided with an internal thread, and the limiting anti-disengagement component is a bolt threaded to the end of the rotating groove 421. Using the internally threaded end of the rotating groove 421 in conjunction with the bolt offers the advantages of simple structure, convenient processing, and ease of on-site maintenance and disassembly. The limiting function can be released and restored simply by tightening or loosening the bolt, providing another highly feasible technical option.

[0031] In this embodiment, a magnetic suction plate 43 is embedded on the side of the rotating mounting bracket 42 away from the rotating groove 421. Utilizing magnetic attraction, the rotating mounting bracket 42 generates an initial, additional suction force when it is attached to a metal car side panel (such as a door or fender). This effectively prevents the ladder from slipping before initial installation and also helps resist lateral forces during use, enhancing overall stability and ease of installation.

[0032] Furthermore, a buffer pad 44 is provided on the side of the rotating lap seat 42 away from the rotating groove 421; the buffer pad 44 is located on the outside of the magnetic suction plate 43. The buffer pad 44 (usually made of elastic materials such as rubber and silicone) is placed on the outside of the magnetic suction plate 43, which can prevent the hard magnetic suction plate 43 or metal lap seat from directly contacting and scratching the car paint, thus protecting the car body; secondly, the buffer pad 44 increases the friction with the car body, further enhancing the anti-slip effect.

[0033] In some embodiments, the ladder assembly 10 is provided with an upper ladder 11 and a lower ladder 12, which are separated into upper and lower sections. Elongated connecting holes 13 are provided below the upper ladder 11 and above the lower ladder 12. The upper ladder 11 and the lower ladder 12 are connected by a central connecting plate 14 and bolts. On one hand, this design allows for stepless adjustment of the overall ladder height. After loosening the bolts, the user can slide the upper and lower ladder 12 and adjust the total height of the ladder within the length range of the elongated connecting holes 13. This adapts to vehicles with different heights, from compact SUVs to full-size off-road vehicles, greatly expanding the product's application range and representing a key design for improved versatility. On the other hand, during delivery and packaging, the ladder can be disassembled into two sections for packaging, effectively reducing the packaging area and facilitating delivery.

[0034] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A multi-angle fixable automobile creeper characterized in that, include: Ladder assembly (10), tread assembly (20), top movable connection assembly (30) and bottom movable overlap assembly (40); Two ladder components (10) are spaced apart; two pedal components (20) are spaced apart along the longitudinal direction and connected between the two ladder components (10); The top movable connecting assembly (30) includes a connecting plate (31), a first connecting member (32), and a second connecting member (33); one side of the connecting plate (31) is rotatably mounted above the ladder assembly (10) via the first connecting member (32); the connecting plate (31) is rotatable and fits against the vehicle platform, and is fixed to the vehicle platform via the second connecting member (33); The bottom movable overlapping assembly (40) includes a connecting pin (41) and a rotating overlapping seat (42); one end of the connecting pin (41) is detachably disposed below the ladder assembly (10), and the other end of the connecting pin (41) is provided with a rotating connecting part (411); the rotating overlapping seat (42) is a long strip structure parallel to the pedal assembly (20), and is provided with a rotating groove (421) rotatably connected to the rotating connecting part (411); the rotating overlapping seat (42) can rotate and overlap the side of the car.

2. The multi-angle secure automotive creeper of claim 1, wherein: A bottom step (50) is provided between the bottoms of the two ladder assemblies (10); the connecting pin (41) is installed on the bottom step (50).

3. The multi-angle secure automotive creeper of claim 1, wherein: The rotating connection part (411) is a cylindrical structure; the rotating groove (421) is a circular through hole structure with two sides, and a rotating clearance opening (422) on one side of the rotating groove (421).

4. The multi-angle secure automotive creeper of claim 3, wherein: The width of the rotation clearance opening (422) is greater than the pin width of the connecting pin (41), and the width of the rotation clearance opening (422) is less than the diameter of the rotation connection part (411).

5. The multi-angle secure automotive creeper of claim 3, wherein: The rotating groove (421) is provided with a limiting anti-detachment component to prevent the rotating connection part (411) from detaching from the rotating groove (421).

6. The multi-angle secure automotive creeper of claim 5, wherein: The rotating groove (421) is provided with an annular groove, and the limiting anti-disengagement component is a retaining spring embedded in the annular groove.

7. The multi-angle secure automotive creeper of claim 5, wherein: The end of the rotating groove (421) is provided with an internal thread, and the limiting anti-disengagement component is a bolt that is threaded to the end of the rotating groove (421).

8. The multi-angle secure automotive creeper of claim 1, wherein: A magnetic plate (43) is embedded on the side of the rotating lap seat (42) away from the rotating groove (421).

9. The multi-angle secure automotive creeper of claim 8, wherein: A buffer pad (44) is provided on the side of the rotating lap seat (42) away from the rotating groove (421); the buffer pad (44) is located on the outside of the magnetic suction plate (43).

10. The multi-angle secure automotive creeper of claim 1, wherein: The ladder assembly (10) is divided into an upper ladder (11) and a lower ladder (12); a long strip connecting hole (13) is provided below the upper ladder (11) and above the lower ladder (12); the upper ladder (11) and the lower ladder (12) are connected by a middle connecting plate (14) and bolts.

Images