A dump truck body structure with a ladder

By designing foldable ladders and detachable side panels on the dump truck body, the problems of difficulty and safety in climbing traditional dump trucks have been solved, enabling convenient and safe loading and unloading of goods.

CN224941027UActive Publication Date: 2026-11-06SHIYAN PINGJIE AUTOMOBILE EQUIP CO LTD
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Patent Information

Application Number
CN202522597908.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-08
Publication Date
2026-11-06
Estimated Expiration
2035-12-08

AI Technical Summary

Technical Problem

Traditional large dump trucks have high cargo boxes, making it difficult and unsafe to work at heights, requiring the use of external ladders or direct climbing of the cargo box side panels.

Method used

Design a dump truck body structure with a ladder, including mounting lining, steps and anti-detachment mechanism. The steps can be folded up and fixed by pins. The ladder is connected to the truck body. The middle side panel and the rear side panel are detachable to facilitate loading and unloading of goods.

Benefits of technology

It improves the convenience and safety of working at heights, reduces the difficulty of manual handling, and provides flexible options for loading and unloading goods.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model proposes a dump truck body structure with an access ladder, comprising: a truck body and an access ladder. The access ladder includes a mounting plate, steps, and an anti-detachment mechanism. The mounting plate is installed at the rear edge of the truck body. One end of the steps is hinged to the mounting plate. The anti-detachment mechanism includes a limiting support, a pin, and an elastic telescopic support. The limiting support is installed on the mounting plate. One end of the elastic telescopic support is connected to the steps. The other end of the elastic telescopic support is detachably installed on the limiting support by passing the pin through the other end of the elastic telescopic support and the limiting support. This eliminates the need for an external ladder or direct climbing of the truck body side panel to enter the truck body, greatly improving convenience and safety.
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Description

Technical Field

[0001] This utility model relates to the field of dump truck technology, specifically to a dump truck body structure with a ladder. Background Technology

[0002] Dump trucks (also known as tipper trucks) are core equipment in the engineering transportation field. Their core feature is the automatic tipping and unloading of the cargo box through a hydraulic or mechanical lifting mechanism. They are widely used in mining, construction waste transportation, agriculture, and other scenarios. Traditional large dump trucks have relatively high cargo boxes, requiring the use of external ladders or climbing directly onto the side panels of the cargo box when getting on and off, which presents difficulties and safety issues for working at height. Utility Model Content

[0003] This utility model proposes a dump truck body structure with a ladder, which eliminates the need for external ladders or direct climbing of the side panels of the truck body to enter the truck body, greatly improving convenience and safety.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a dump truck body structure with a ladder, comprising: a truck body and a ladder, wherein the ladder includes a mounting liner, steps, and an anti-detachment mechanism, the mounting liner is installed at the rear edge of the truck body, and one end of the steps is hinged to the mounting liner. The anti-detachment mechanism includes a limiting support, a pin, and an elastic telescopic support. The limiting support is installed on the mounting plate. One end of the elastic telescopic support is connected to the ladder. The other end of the elastic telescopic support is detachably installed on the limiting support by passing the pin through the other end of the elastic telescopic support and the limiting support.

[0005] Preferably, the ladder further includes a reinforcing column, one end of which is connected to the mounting plate, and the other end of which is fixedly installed to the dump truck frame.

[0006] Preferably, the carriage includes a carriage floor, fixed side panels, a front side panel, a middle side panel, and a rear side panel. The fixed side panels are installed at the edge of the middle section of the carriage floor, the front side panel is installed at the front edge of the carriage floor, the middle side panel is detachably installed at the edge of the middle section of the carriage floor, and the rear side panel is detachably installed at the rear edge of the carriage floor. Both the middle side panel and the rear side panel can be locked together with the fixed side panels.

[0007] Preferably, the fixed side plate is provided with mounting holes, and the middle side plate and the rear side plate are provided with locking hooks.

[0008] Preferably, the cargo box further includes a chassis, which is installed on the bottom surface of the cargo box floor and fixedly installed on the top surface of the dump truck frame.

[0009] Preferably, the outer side surface of the front baffle is provided with reinforcing ribs.

[0010] Preferably, the ladder further includes a mounting support, which is fixedly mounted on the mounting plate, and one end of the ladder is hinged to the mounting support by a pin.

[0011] Preferably, the ladder includes a main frame and step beams, one end of the main frame is hinged to a mounting support by a pin, and the step beams are mounted on the main frame.

[0012] Preferably, the end of the main frame away from the mounting bracket is provided with an end support platform, and the end support platform is provided with a contact surface.

[0013] Compared with existing technologies, the advantages are: 1) It is no longer necessary to use external ladders or climb directly up the side panels of the carriage to enter the carriage, which greatly improves convenience and safety; 2) The middle and rear side panels of the truck bed are designed to be detachable, which makes it easier for forklifts and cranes to place goods in the truck bed from different directions. It also reduces the difficulty of manual handling. For example, workers can drag goods from the ladder to the floor of the truck bed, providing more flexible options for loading and unloading goods. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a perspective view of the dump truck body structure with a ladder according to this utility model.

[0016] Figure 2 This is a perspective view of the structure of a dump truck body with a ladder.

[0017] Figure 3 This is a partial structural diagram of a dump truck body with a ladder.

[0018] Reference numerals: 1. Carriage; 11. Carriage floor; 12. Fixed side plate; 13. Front side panel; 14. Middle side plate; 15. Rear side plate; 16. Mounting hole; 17. Locking hook; 18. Base frame; 19. Reinforcing rib; 2. Ladder; 21. Mounting liner; 22. Step; 221. Main frame; 222. Step beam; 223. End support platform; 224. Contact surface; 23. Anti-detachment mechanism; 231. Limiting support; 232. Pin; 233. Elastic telescopic support; 235. Spring; 236. Connector; 24. Reinforcing column; 25. Mounting support; 26. Boss. Detailed Implementation

[0019] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.

[0020] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation 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.

[0021] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0023] The following combination Figures 1 to 3 This invention provides a detailed description of a dump truck body structure with a ladder, comprising: a truck body 1 and a ladder 2. The ladder 2 includes a mounting plate 21, steps 22, and an anti-detachment mechanism 23. The mounting plate 21 is fixedly installed at the rear edge of the carriage 1, and one end of the steps 22 is hinged to the mounting plate 21. The anti-detachment mechanism 23 includes a limiting support 231, a pin 232, and an elastic telescopic support 233. The limiting support 231 is fixedly installed on the mounting plate 21. One end of the elastic telescopic support 233 is fixedly connected to the step 22. The other end of the elastic telescopic support 233 is detachably installed on the limiting support 231 by passing the pin 232 through the other end of the elastic telescopic support 233 and the limiting support 231.

[0024] Specifically, the elastic telescopic support 233 includes a central column and a spring 235. One end of the central column is provided with a connector 236. A pin 232 passes through the connector 236 to achieve a detachable connection between the connector 236 and the limiting support 231. The other end of the central column is installed on the boss 26 of the step 22. The spring is sleeved on the central column, and one end of the spring 235 abuts against the connector 236, while the other end of the spring 235 abuts against the boss 26 of the step 22.

[0025] In this way, when workers need to climb to the dump truck's cargo compartment 1, they can remove the latch 232, lay down the ladder 22 and support it on the ground, and the workers can walk freely on the ladder 22 to the rear of the cargo compartment 1 and then enter the cargo compartment 1. They no longer need to use an external ladder or directly climb the side panel of the cargo compartment 1 to enter the cargo compartment 1, which greatly improves convenience and safety.

[0026] When the dump truck is in motion and it is not necessary to climb onto the dump truck bed 1, the step 22 is flipped upwards and retracted. The other end of the elastic telescopic support 233 is detachably installed on the limit support 231 by passing the pin 232 through the other end of the elastic telescopic support 233 and the limit support 231. At this time, the spring of the elastic telescopic support 233 generates an extension force to limit the upward flipped-up step 22, maintain the upward flipped-up state of the step 22, and prevent the step 22 from automatically loosening and falling down.

[0027] In one specific embodiment, the ladder 2 further includes a reinforcing column 24, one end of which is fixedly connected to the mounting liner 21, and the other end of which is fixedly installed to the dump truck frame (not shown). This enhances the installation stability of the mounting liner 21 and allows it to withstand greater weight when workers use the ladder 2 for elevated operations.

[0028] In one specific embodiment, the carriage 1 includes a carriage floor 11, a fixed side plate 12, a front side baffle 13, a middle side plate 14, and a rear side plate 15. The fixed side plate 12 is installed at the edge of the middle section of the carriage floor 11, the front side baffle 13 is installed at the front edge of the carriage floor 11, the middle side plate 14 is detachably installed at the edge of the middle section of the carriage floor 11, and the rear side plate 15 is detachably installed at the rear edge of the carriage floor 11. Both the middle side plate 14 and the rear side plate 15 can be locked together with the fixed side plate 12.

[0029] When the cargo compartment 1 needs to be loaded with goods, both the middle side panel 14 and the rear side panel 15 can be unlocked from the fixed side panel 12, and the middle side panel 14 and the rear side panel 15 can be removed. Then, the goods can be placed on the cargo compartment floor 11 for loading. After loading is completed, the middle side panel 14 and the rear side panel 15 can be installed back in their original positions and locked together. In this way, the detachable design of the middle side panel 14 and the rear side panel 15 of the cargo compartment 1 makes it convenient for forklifts and cranes to place goods in the cargo compartment 1 from different directions. It also reduces the difficulty of manual handling. For example, workers can drag the goods from the ladder 2 to the cargo compartment floor 11, providing more flexible options for loading and unloading goods.

[0030] In one specific embodiment, the fixed side plate 12 is provided with mounting holes 16, and the middle side plate 14 and the rear side plate 15 are provided with locking hooks 17 corresponding to the mounting holes 16. The locking pins are installed at the mounting holes 16 and the locking hooks 17, so that the middle side plate 14 can be locked to the fixed side plate 12 or the rear side plate 15 can be locked to the fixed side plate 12.

[0031] When it is necessary to remove the middle side plate 14 and the rear side plate 15, first remove the locking pin, and then the middle side plate 14 and the rear side plate 15 can be removed, which can facilitate the loading of large goods.

[0032] In one specific embodiment, the climbing ladder 2 further includes a mounting support 25, which is fixedly mounted on the mounting liner 21, and one end of the step ladder 22 is hinged to the mounting support 25 by a pin. Specifically, the installation method can be as follows: a pin passes through the mounting support 25 and one end of the step ladder 22, so that the mounting support 25 and the step ladder 22 are hinged together.

[0033] In one specific embodiment, the cargo box 1 further includes a base frame 18, which is fixedly installed on the bottom surface of the cargo box floor 11 and fixedly installed on the top surface of the dump truck frame. By providing a base frame 18 at the bottom of the cargo box floor 11, the load-bearing capacity of the cargo box floor 11 can be greatly enhanced, and the torsional resistance of the cargo box floor 11 can be improved.

[0034] In one specific embodiment, the ladder 22 includes a main frame 221 and a step beam 222. One end of the main frame 221 is hinged to the mounting support 25 by a pin. The step beam 222 is installed on the main frame 221, which facilitates workers to walk freely on the step beam 222 and step onto the dump truck body 1.

[0035] It should be noted that there are multiple step beams 222, which are distributed at intervals on the main frame 221.

[0036] In one specific embodiment, the end of the main frame 221 away from the mounting support 25 is provided with an end support platform 223, and the end support platform 223 is provided with a contact surface 224. When the ladder 22 is laid down, the contact surface 224 of the end support platform 223 of the main frame 221 is supported on the ground, which can provide stable support, and the workers can move freely on the ladder 22 to the rear of the carriage 1 to enter the carriage 1.

[0037] In one specific embodiment, a reinforcing rib 19 is provided on the outer side of the front baffle 13, which can increase the structural strength of the front baffle 13 and prevent the front baffle 13 from deforming.

[0038] The dump truck body structure with a ladder provided by this utility model adopts a detachable design for the middle side plate 14 and the rear side plate 15 of the body 1, which can facilitate forklifts and cranes to place goods in the body 1 from different directions. It can also reduce the difficulty of manual handling. For example, the operator can drag the goods from the ladder 2 to the bottom plate 11 of the body, providing a more flexible option for loading and unloading goods.

[0039] This invention is not limited to the description and embodiments described herein, and thus other advantages and modifications can be readily realized by those skilled in the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and examples shown and described herein.

Claims

1. A dump truck body structure with a ladder, characterized in that, include: The carriage (1) and the ladder (2) include a mounting plate (21), a step (22), and an anti-detachment mechanism (23). The mounting plate (21) is installed at the rear edge of the carriage (1), and one end of the step (22) is hinged to the mounting plate (21). The anti-detachment mechanism (23) includes a limiting support (231), a pin (232), and an elastic telescopic support (233). The limiting support (231) is installed on the mounting plate (21). One end of the elastic telescopic support (233) is connected to the step (22). The other end of the elastic telescopic support (233) is detachably installed on the limiting support (231) by passing the pin (232) through the other end of the elastic telescopic support (233) and the limiting support (231).

2. The dump truck body structure with a ladder as described in claim 1, characterized in that, The ladder (2) also includes a reinforcing column (24), one end of which is connected to the mounting plate (21), and the other end of which is fixedly installed to the dump truck frame.

3. The dump truck body structure with a ladder as described in claim 1, characterized in that, The carriage (1) includes a carriage floor (11), a fixed side plate (12), a front side baffle (13), a middle side plate (14), and a rear side plate (15). The fixed side plate (12) is installed at the edge of the middle section of the carriage floor (11). The front side baffle (13) is installed at the front edge of the carriage floor (11). The middle side plate (14) is detachably installed at the edge of the middle section of the carriage floor (11). The rear side plate (15) is detachably installed at the rear edge of the carriage floor (11). Both the middle side plate (14) and the rear side plate (15) can be locked together with the fixed side plate (12).

4. The dump truck body structure with a ladder as described in claim 3, characterized in that, The fixed side plate (12) is provided with mounting holes (16), and the middle side plate (14) and the rear side plate (15) are provided with locking hooks (17).

5. The dump truck body structure with a ladder as described in claim 3, characterized in that, The carriage (1) also includes a base frame (18), which is installed on the bottom surface of the carriage floor plate (11) and is fixedly installed on the top surface of the dump truck frame.

6. The dump truck body structure with a ladder as described in claim 3, characterized in that, The outer side surface of the front baffle (13) is provided with reinforcing ribs (19).

7. The dump truck body structure with a ladder as described in claim 1, characterized in that, The ladder (2) also includes a mounting bracket (25), which is mounted on the mounting liner (21), and one end of the step ladder (22) is hinged to the mounting bracket (25) by a pin.

8. The dump truck body structure with a ladder as described in claim 1, characterized in that, The ladder (22) includes a main frame (221) and step beams (222). One end of the main frame (221) is hinged to the mounting support (25) by a pin, and the step beams (222) are mounted on the main frame (221).

9. The dump truck body structure with a ladder as described in claim 8, characterized in that, The main frame (221) is provided with an end support platform (223) at the end away from the mounting bracket (25), and a contact surface (224) is provided on the end support platform (223).