Telescopic automobile step ladder structure

Abstract

The utility model relates to the technical field of automobile accessories, in particular to a telescopic automobile step ladder structure which comprises a step ladder supporting beam, a step ladder supporting sliding rail is fixedly connected to one side of the outer surface of the step ladder supporting beam, a sliding rail groove is formed in the outer surface of the step ladder supporting sliding rail, a connecting rod is connected to the inner wall of the sliding rail groove in an inserted mode, and the step ladder supporting sliding rail is connected with the connecting rod. The connecting rod is fixedly connected with a step ladder I, the two ends of the connecting rod are in threaded connection with limiting rings, the bottom end of the step ladder supporting sliding rail is fixedly connected with a limiting rod, and the limiting rod is located below the step ladder I; when the step ladder is not used, the first step ladder is lifted upwards to enable the connecting rod on the first step ladder to move along the sliding rail groove until the connecting rod is clamped into the arc-shaped groove in the foremost end of the sliding rail groove, at the moment, the limiting convex column is clamped on the rear side of the limiting rod, and through the limiting effect of the limiting rod on the limiting convex column, the step ladder is not used. The step ladder can be guaranteed not to be separated from the step ladder supporting slide rail, and the step ladder can be stored in a non-use state through the process.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a telescopic automobile step ladder structure. Background Art

[0002] Existing refrigerated vans are basically required to install rear anti-collision according to domestic regulations. Different announcements, different box heights, and rear anti-collision ground heights are different. The higher the box height from the ground, the more steps need to be installed on the rear side to facilitate getting on the vehicle.

[0003] The rear anti-collision system of refrigerated vans on the current market basically occupies most of the outer width of the box body, leaving limited space for the installation of the rear step ladder. If a fixed step ladder is installed, the strength of the step ladder is fine, but there is no installation space, it is not practical, and it cannot adapt to various situations. The step ladder has certain load-bearing requirements when used, the contact surface is small, and the strength is not very good. It is easy to cause accidents such as stepping on empty space when stepping on it, causing damage to objects and workers. Utility Model Content

[0004] The main purpose of the utility model is to provide a retractable automobile step ladder structure to solve the problem proposed in the related art that the rear anti-collision of refrigerated vans on the current market basically occupies most of the outer width of the box body, leaving limited installation space for the rear step ladder. If a fixed step ladder is assembled, the strength of the step ladder is no problem, but there is no installation space, the practicability is not strong, and it cannot adapt to various situations. The step ladder has certain load-bearing requirements when used, the contact surface for stepping on is small, the strength is not very good, and accidents such as stepping on air are prone to occur when stepping on, causing damage to objects and workers.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a retractable automobile step ladder structure is provided, including a step ladder support beam, a step ladder support rail is fixedly connected to one side of the outer surface of the step ladder support beam, a rail groove is provided on the outer surface of the step ladder support rail, a connecting rod is inserted and connected to the inner wall of the rail groove, a step ladder is fixedly connected to the connecting rod, both ends of the connecting rod are threadedly connected to limit rings, the bottom end of the step ladder support rail is fixedly connected to the limit rod, and the limit rod is located below the step ladder.

[0006] Furthermore, a step ladder 1 is fixedly connected to the connecting rod, a support plate is fixedly connected to one side of the outer surface of the step ladder 1, a step ladder 2 is fixedly connected to one side of the outer surface of the support plate, and the step ladder 2 is located below the step ladder 1.

[0007] Furthermore, a lap groove is provided at the end of the first step ladder.

[0008] Furthermore, four L-shaped plates are fixedly connected to one side of the outer surface of the step ladder support slide rail, and mounting holes are provided on the outer surfaces of the four L-shaped plates.

[0009] Furthermore, a limiting boss is fixed to the bottom end of the second step ladder.

[0010] Compared with the prior art, the utility model has the following beneficial effects: when in use, the utility model first lifts up step one to make the end of the connecting rod detach from the front end arc groove of the slide rail groove, grab step two and bring step one out together, and when pulling step two, the connecting rod will move along the slide rail groove, and be pulled until the connecting rod slides to the bottom of the other end of the slide rail groove, so that step one is placed on the limit rod, and can be used normally. When not in use, lift step one upward to make the connecting rod on it move along the slide rail groove until the connecting rod is stuck in the front end arc groove of the slide rail groove, at this time, the limit boss is stuck on the rear side of the limit rod, and the limiting effect of the limit rod on the limit boss can ensure that the step ladder will not detach from the step ladder supporting slide rail, and the above process can realize the storage of the step ladder when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a side view structural schematic diagram of the utility model;

[0013] Figure 3 This is the second schematic diagram of the side structure of the utility model (the connection between the step ladder 1 and the step ladder support beam is cut away).

[0014] Illustrations: 1. Ladder support beam; 2. Ladder support rail; 3. Slide rail groove; 4. Connecting rod; 5. Limiting ring; 6. Limiting rod; 7. Ladder one; 8. Support plate; 9. Ladder two; 10. Overlap groove; 11. L-shaped plate; 12. Mounting hole; 13. Limiting boss. DETAILED DESCRIPTION

[0015] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the specific implementation method, structure, characteristics and effects of the utility model are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0016] See also Figure 1-Figure 3 As shown, the purpose of this embodiment is to provide a retractable automobile step ladder structure, including a step ladder support beam 1, a step ladder support rail 2 is fixedly connected to one side of the outer surface of the step ladder support beam 1, a rail groove 3 is provided on the outer surface of the step ladder support rail 2, a connecting rod 4 is inserted and connected to the inner wall of the rail groove 3, a step ladder 7 is fixedly connected to the connecting rod 4, both ends of the connecting rod 4 are threadedly connected to limit rings 5, the bottom end of the step ladder support rail 2 is fixedly connected to the limit rod 6, the limit rod 6 is located below the step ladder 7, and the limit rod 6 plays a supporting role for the step ladder 7;

[0017] It should be noted that a lap groove 10 is provided at the end of the step ladder 7, and the lap groove 10 can be overlapped on the limit rod 6. Through the cooperation of the lap groove 10 and the limit rod 6, the step ladder 7 can be supported in the unfolded state to ensure its normal use.

[0018] Furthermore, a downwardly recessed arc groove is provided at the end of the slide rail groove 3, and when the step ladder 7 is fully stored, the connecting rod 4 can be just inserted into the arc groove.

[0019] Through the cooperation of the step ladder support rail 2 and the rail groove 3, the connecting rod 4 can slide in the rail groove 3. When the connecting rod 4 slides to the inside of the arc groove at the front end of the rail groove 3, the arc groove can limit the connecting rod 4 to prevent the connecting rod 4 from sliding back and forth. The connecting rod 4 is connected to the step ladder 7. Therefore, when the connecting rod 4 moves in the rail groove 3, it drives the step ladder 7 to move above the step ladder support rail 2, thereby completing the extension and storage of the step ladder.

[0020] A support plate 8 is fixedly connected to one side of the outer surface of the step ladder 1 7, and a step ladder 2 9 is fixedly connected to one side of the outer surface of the support plate 8. The step ladder 2 9 is located below the step ladder 1 7;

[0021] It should be added that a limiting protrusion 13 is fixed to the bottom end of the step ladder 9. When the step ladder is stored, the limiting protrusion 13 can be stuck on the rear side of the limiting rod 6. The limiting effect of the limiting rod 6 on the limiting protrusion 13 can ensure that the step ladder will not detach from the step ladder support rail 2.

[0022] Four L-shaped plates 11 are fixedly connected to one side of the outer surface of the step ladder support rail 2. The outer surfaces of the four L-shaped plates 11 are provided with mounting holes 12, and screws can be inserted into the mounting holes 12. Through the action of the four L-shaped plates 11, the step ladder and the car can be fixedly installed.

[0023] When the utility model is used, the step ladder support beam 1 is directed toward the inside of the rear part of the car, the L-shaped plate 11 on the step ladder support slide rail 2 is closely attached to the rear steel beam of the car, and then the step ladder support slide rail 2 is fixedly connected to the rear steel beam of the car with a fixing screw. When in use, the step ladder 7 is first lifted to make the end of the connecting rod 4 separate from the arc groove at the front end of the slide rail groove 3, and the step ladder 2 9 is grasped to bring the step ladder 7 out together. When the step ladder 2 9 is pulled, the connecting rod 4 will move along the slide rail groove 3, and when the connecting rod 4 slides, the connecting rod 4 will slide outward. When the ladder is not in use, lift the ladder 7 upwards to move the connecting rod 4 on it along the slide rail groove 3 until the connecting rod 4 is stuck in the arc groove at the front end of the slide rail groove 3. At this time, the limiting protrusion 13 is stuck on the rear side of the limiting rod 6. The limiting effect of the limiting rod 6 on the limiting protrusion 13 can ensure that the ladder will not detach from the ladder supporting slide rail 2. The above process can realize the storage of the ladder when not in use.

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0025] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A retractable automobile step ladder structure, comprising a step ladder support beam (1), characterized in that: A step ladder support rail (2) is fixedly connected to one side of the outer surface of the step ladder support beam (1), a rail groove (3) is provided on the outer surface of the step ladder support rail (2), a connecting rod (4) is inserted into the inner wall of the rail groove (3), a step ladder (7) is fixedly connected to the connecting rod (4), both ends of the connecting rod (4) are threadedly connected to limit rings (5), the bottom end of the step ladder support rail (2) is fixedly connected to a limit rod (6), and the limit rod (6) is located below the step ladder (7).

2. The retractable automobile step ladder structure according to claim 1, characterized in that: A support plate (8) is fixedly connected to one side of the outer surface of the step ladder 1 (7), and a step ladder 2 (9) is fixedly connected to one side of the outer surface of the support plate (8), and the step ladder 2 (9) is located below the step ladder 1 (7).

3. The retractable automobile step ladder structure according to claim 1, characterized in that: An overlap groove (10) is provided at the end of the step ladder 1 (7).

4. The retractable automobile step ladder structure according to claim 1, characterized in that: Four L-shaped plates (11) are fixedly connected to one side of the outer surface of the step ladder support rail (2), and mounting holes (12) are provided on the outer surfaces of the four L-shaped plates (11).

5. The retractable automobile step ladder structure according to claim 2, characterized in that: A limiting convex column (13) is fixed at the bottom end of the second step ladder (9).

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