Vehicle rear step

Abstract

The utility model relates to a kind of vehicle rear ladders, including upper ladder, lower ladder, turnover device and subframe connecting device;Upper ladder upper portion is connected with vehicle, and upper ladder lower portion is connected with vehicle subframe by subframe connecting device;Turnover device is arranged between upper ladder lower portion and lower ladder upper portion;The utility model is higher in view of vehicle height, and the vehicle with higher passability requirement, lower ladder is increased on the basis of upper ladder, and upper ladder upper portion is connected with vehicle, and upper ladder lower portion is connected with vehicle subframe, and it is provided with reinforcing structure, when vehicle is in running state, considering vehicle passability, lower ladder is turned up and fixed on upper ladder, and lower ladder is turned down when personnel climbs operation, to facilitate personnel climbing.

Description

Technical Field

[0001] This utility model relates to the field of vehicle equipment technology, and in particular to a vehicle rear ladder. Background Technology

[0002] The rear ladder of a conventional special vehicle is usually a fixed type. Fixed rear ladders are generally firmly and reliably fixed, and personnel need to use the rear guard when climbing. However, for vehicles with high height and high passability requirements, the rear guard cannot provide support, making it difficult for personnel to climb the ladder. Summary of the Invention

[0003] The purpose of this invention is to provide a rear ladder for vehicles to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A vehicle rear ladder includes an upper ladder, a lower ladder, a tilting device, and a subframe connecting device;

[0006] The upper part of the upper ladder is connected to the vehicle, and the lower part of the upper ladder is connected to the vehicle subframe via the subframe connecting device; the tilting device is provided between the lower part of the upper ladder and the upper part of the lower ladder.

[0007] Furthermore, the upper ladder includes a first vertical beam and a first horizontal beam;

[0008] The upper part of the first vertical beam is a bent structure, and several first horizontal beams are arranged between the two first vertical beams.

[0009] Furthermore, the lower ladder includes a second vertical beam and a second horizontal beam;

[0010] Several second crossbeams are provided between the two second vertical beams.

[0011] Furthermore, the subframe connecting device includes a strut, a connecting base, a reinforcing plate, and a reinforcing rib; the first end of the strut is connected to the vehicle subframe through the connecting base, and the reinforcing plate is provided at the connection between the first end of the strut and the connecting base; the second end of the strut is connected to the lower part of the first vertical beam, and the reinforcing rib is provided at the connection between the second end of the strut and the first vertical beam.

[0012] Furthermore, the flipping device includes a third crossbeam, a fourth crossbeam, a sleeve, a first pin, a first R-type pin, a second pin, and a second R-type pin;

[0013] The third crossbeam is provided between the tops of the two second vertical beams, the sleeve is provided at the bottom of the first vertical beam, the two ends of the third crossbeam pass through the sleeve and are provided with first pin holes, the first end of the first pin is inserted into the first pin hole, and the second end of the first pin is inserted into the first R-type pin.

[0014] A fourth crossbeam is provided between the two first vertical beams. The fourth crossbeam and the corresponding second crossbeam are respectively provided with second pin holes. The first end of the second pin shaft is inserted into the second pin hole, and the first end of the second pin shaft is connected to the second R-type pin.

[0015] Furthermore, the flipping device also includes a limiting rod;

[0016] The limiting rod is horizontally provided at the bottom of the first vertical beam.

[0017] Furthermore, a sealing plate is provided at the bottom of the second vertical beam, and an elastic sleeve is provided on the second vertical beam.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model is designed for vehicles with high height and high passability requirements. It adds a lower ladder to the upper ladder. The upper part of the upper ladder is connected to the vehicle, and the lower part of the upper ladder is connected to the vehicle subframe. It is equipped with a reinforcing structure. When the vehicle is in operation, the lower ladder is flipped up and fixed to the upper ladder to take into account the vehicle's passability. When personnel are climbing, the lower ladder is flipped down to facilitate climbing. Attached Figure Description

[0020] Figure 1 This is a front view of the overall structure of this utility model in its folded state;

[0021] Figure 2 This is a side view of the overall structure of this utility model in its folded state;

[0022] Figure 3 This is a side view of the overall structure of this utility model in a folded state;

[0023] Figure 4 for Figure 1 A magnified view of a portion of the image;

[0024] Figure 5 for Figure 3 A magnified view of a portion of the image.

[0025] In the diagram: 1. Upper ladder; 2. Lower ladder; 3. Tilting device; 4. Subframe connecting device; 11. First vertical beam; 12. First horizontal beam; 21. Second vertical beam; 22. Second horizontal beam; 31. Third horizontal beam; 32. Fourth horizontal beam; 33. Limiting rod; 34. Sleeve; 35. First pin; 36. First R-pin; 37. Second pin; 38. Second R-pin; 41. Support rod; 42. Connecting base; 43. Reinforcing plate; 44. Reinforcing rib. Detailed Implementation

[0026] 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.

[0027] like Figure 1-5 As shown: A vehicle rear ladder includes an upper ladder 1, a lower ladder 2, a tilting device 3, and a subframe connecting device 4;

[0028] The upper part of the upper ladder 1 is connected to the vehicle, and the lower part of the upper ladder 1 is connected to the vehicle subframe via the subframe connecting device 4; a tilting device 3 is provided between the lower part of the upper ladder 1 and the upper part of the lower ladder 2. The connection between the upper ladder 1 and the vehicle and the vehicle subframe can be by bolting.

[0029] The upper ladder 1 includes a first vertical beam 11 and a first horizontal beam 12; the upper part of the first vertical beam 11 has a bent structure, and several first horizontal beams 12 are arranged between the two first vertical beams 11.

[0030] The lower ladder 2 includes a second vertical beam 21 and a second horizontal beam 22; several second horizontal beams 22 are provided between the two second vertical beams 21.

[0031] The subframe connecting device includes a strut 41, a connecting base 42, a reinforcing plate 43, and a reinforcing rib 44. The first end of the strut 41 is connected to the vehicle subframe via the connecting base 42, and a reinforcing plate 43 is provided at the connection point between the first end of the strut 41 and the connecting base 42. The second end of the strut 41 is connected to the lower part of the first vertical beam 11, and a reinforcing rib 44 is provided at the connection point between the second end of the strut 41 and the first vertical beam 11. The subframe connecting device is screwed to both the vehicle subframe and the upper ladder. A lower ladder 2 is added to the upper ladder 1. To increase the stability of the connection between the rear ladder and the vehicle subframe, reinforcing plates 43 and reinforcing ribs 44 are added to both ends of the strut 41.

[0032] The flipping device 3 includes a third crossbeam 31, a fourth crossbeam 32, a sleeve 34, a first pin 35, a first R-type pin 36, a second pin 37, and a second R-type pin 38.

[0033] A third crossbeam 31 is provided between the tops of the two second vertical beams 21. A sleeve 34 is provided at the bottom of the first vertical beam 11. The two ends of the third crossbeam 31 pass through the sleeve 34 and are provided with first pin holes. The first end of the first pin 35 is inserted into the first pin hole, and the second end of the first pin 35 is inserted into the first R-type pin 36. The two ends of the third crossbeam 31 rotate around the sleeve 34. The first pin 35 is inserted into the first pin hole of the third crossbeam 31, and the first R-type pin 36 locks the first pin 35. The first pin 35 and the first R-type pin 36 ensure that the third crossbeam 31 rotates in the sleeve 34 and does not come out, and facilitates installation and disassembly.

[0034] A fourth crossbeam 32 is provided between the two first vertical beams 11. The fourth crossbeam 32 and the corresponding second crossbeam 22 are each provided with a second pin hole. The first end of a second pin 37 is inserted into the second pin hole, and a second R-shaped pin 38 is inserted into the first end of the second pin 37. The second pin 37 is locked in place by the second R-shaped pin 38. The second pin 37 and the second R-shaped pin 38 ensure that the lower ladder 2 flips and is folded and fixed to the upper ladder 1, and facilitate installation and disassembly.

[0035] For vehicles with high height and high passability requirements, the lower ladder 2 is flipped over based on the upper ladder 1. When using the lower ladder 2, the second R-pin 38 and the second pin shaft 37 are removed, and the lower ladder 2 is flipped downwards. When not using the lower ladder 2, the lower ladder 2 is flipped upwards so that the second pin hole of the lower ladder 2 is aligned with the second pin hole on the fourth crossbeam 32. The lower ladder 2 can be folded by inserting the second pin shaft 37 and the second R-pin 38.

[0036] The flipping device 3 also includes a limiting rod 33; the bottom of the first vertical beam 11 is provided with a limiting rod 33 in the horizontal direction. The limiting rod 33 is used to limit the flipping of the lower ladder 2, ensuring that the lower ladder 2 flips 180° around the upper ladder 1, and preventing the lower ladder 2 from flipping excessively.

[0037] The bottom of the second vertical beam 21 is equipped with a sealing plate, and an elastic sleeve is installed on the second vertical beam 21. When the lower ladder 2 is flipped and the upper ladder 1 is folded and fixed, the sealing plate is used to prevent rainwater from entering the hollow of the second vertical beam 21, and the elastic sleeve is a flat-headed silicone sleeve to reduce abnormal noise caused by collision.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A vehicle rear ladder, characterized in that, It includes an upper ladder (1), a lower ladder (2), a tilting device (3), and a subframe connecting device (4). The upper part of the upper ladder (1) is connected to the vehicle, and the lower part of the upper ladder (1) is connected to the vehicle subframe through the subframe connecting device (4); the flipping device (3) is provided between the lower part of the upper ladder (1) and the upper part of the lower ladder (2).

2. The vehicle rear ladder as described in claim 1, characterized in that, The upper ladder (1) includes a first vertical beam (11) and a first horizontal beam (12); The upper part of the first vertical beam (11) is a bent structure, and several first horizontal beams (12) are arranged between the two first vertical beams (11).

3. The vehicle rear ladder as described in claim 2, characterized in that, The lower ladder (2) includes a second vertical beam (21) and a second horizontal beam (22); Several second crossbeams (22) are provided between the two second vertical beams (21).

4. The vehicle rear ladder as described in claim 3, characterized in that, The subframe connecting device (4) includes a strut (41), a connecting base (42), a reinforcing plate (43), and a reinforcing rib (44). The first end of the strut (41) is connected to the vehicle subframe through the connecting base (42), and the reinforcing plate (43) is provided at the connection between the first end of the strut (41) and the connecting base (42). The second end of the strut (41) is connected to the lower part of the first vertical beam (11), and the reinforcing rib (44) is provided at the connection between the second end of the strut (41) and the first vertical beam (11).

5. The vehicle rear ladder as described in claim 4, characterized in that, The flipping device (3) includes a third crossbeam (31), a fourth crossbeam (32), a sleeve (34), a first pin (35), a first R-type pin (36), a second pin (37), and a second R-type pin (38); The third crossbeam (31) is provided between the tops of the two second vertical beams (21), and the sleeve (34) is provided at the bottom of the first vertical beam (11). The two ends of the third crossbeam (31) pass through the sleeve (34) and are provided with first pin holes. The first end of the first pin shaft (35) is inserted into the first pin hole, and the second end of the first pin shaft (35) is inserted into the first R-type pin (36). The fourth crossbeam (32) is provided between the two first vertical beams (11). The fourth crossbeam (32) and the corresponding second crossbeam (22) are respectively provided with second pin holes. The first end of the second pin shaft (37) is inserted into the second pin hole, and the first end of the second pin shaft (37) is connected to the second R-type pin (38).

6. The vehicle rear ladder as described in claim 5, characterized in that, The flipping device (3) also includes a limiting rod (33). The limiting rod (33) is provided horizontally at the bottom of the first vertical beam (11).

7. The vehicle rear ladder as described in claim 5, characterized in that, The bottom of the second vertical beam (21) is provided with a sealing plate, and the second vertical beam (21) is provided with an elastic sleeve.

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