A telescopic rear lower protection device for a dump truck
By designing the telescopic rear lower protection device of the dump truck, and using the mechanism of cargo box lifting and one-way limiting pins, the problem of the easy deformation of the rear lower protection device of the dump truck under slope or pothole road conditions is solved, and the effect of preventing collision deformation and reducing losses is achieved.
Patent Information
- Application Number
- CN202421520949.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-07-01
AI Technical Summary
In the ground or potholes with large slopes, the fixed rear lower protective device is prone to collide and deform with the ground, resulting in losses.
A telescopic rear lower protection device of dump truck is designed, including a cargo box connection bracket, a frame connection bracket, a beam connection bracket, a rear protection cross beam, a reinforcement plate and a fixed connection plate. When the cargo box is lifted, the rear protective beam moves forward and away from the rear of the cargo box; when encountering ground obstacles, the rear protective beam is raised by a one-way limit pin to avoid contact with the ground.
Effectively prevent cargo from colliding with rear protection beams, avoid deformation of rear protection beams, reduce losses, and prevent contact between rear protection beams and ground under slopes or potholes, to avoid collision deformation.
Smart Images
Figure CN222727953U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of rear lower protection devices for vehicles, and in particular to a telescopic rear lower protection device for a dump truck. Background Art
[0002] The vehicle's rear lower guard is very important for traffic safety. The national standard has strict technical requirements for the vehicle's rear lower guard, which makes it impossible to increase the departure angle by increasing the ground clearance of the fixed rear lower guard.
[0003] When a dump truck is equipped with a fixed rear lower guard, when the cargo box is lifted to unload, the falling objects are likely to collide with the rear lower guard and cause deformation of the rear lower guard; if the vehicle passes through a road with a large slope or bumpy roads, the conventional fixed rear lower guard will contact the road surface and cause collision and deformation, causing losses to the vehicle owner. Utility Model Content
[0004] In order to improve the problem that the rear lower protection device of a vehicle is easily deformed due to collision with the ground when passing through a slope, the present application provides a telescopic rear lower protection device for a dump truck.
[0005] The present application provides a retractable rear lower protection device for a dump truck adopts the following technical solution:
[0006] A telescopic rear lower protection device for a dump truck, characterized in that it comprises: a cargo box connecting bracket, a frame connecting bracket, a crossbeam connecting bracket, a rear protective crossbeam, a reinforcing plate and a fixed connecting plate, the fixed connecting plate is screwed to the frame, the frame connecting bracket is connected to the fixed connecting plate rotating shaft, one end of the cargo box connecting bracket is connected to the cargo box bottom plate rotating shaft, the other end of the cargo box connecting bracket is connected to the frame connecting bracket rotating shaft, the crossbeam connecting bracket is connected to the frame connecting bracket rotating shaft, a limit pin for limiting the rotation of the crossbeam connecting bracket is provided between the crossbeam connecting bracket and the frame connecting bracket, the reinforcing plate is fixed to the crossbeam connecting bracket, and the rear protective crossbeam is fixed to the reinforcing plate.
[0007] The embodiment of the present disclosure provides a telescopic rear lower protection device for a dump truck, which can achieve the following technical effects:
[0008] When the dump truck cargo box is lifted, the frame connecting bracket, beam connecting bracket, reinforcement plate and rear protection beam move toward the front of the vehicle. Therefore, when the cargo box is lifted and unloaded, the rear protection beam is away from the unloading port at the rear of the cargo box, which helps prevent the cargo from colliding with the rear protection beam, thereby preventing the rear protection beam from deforming and avoiding losses.
[0009] Dump trucks often work in non-road sites such as mines and construction sites. When passing through steep ground or potholes, the rear protective beam is prone to contact and deformation with the ground. To solve this problem, a limit pin is set in the device, which only limits the downward movement of the rear protective beam, but does not limit the upward movement of the rear protective beam. When the rear protective beam is blocked by a ground obstacle, the rear protective beam will rotate backward and upward, thereby raising the rear protective beam, which helps prevent the rear protective beam from contacting the ground obstacle and causing collision and deformation, thereby avoiding losses.
[0010] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of a telescopic rear lower protection device for a dump truck provided in an embodiment of the present application.
[0012] Figure 2 It is a schematic diagram of the state of the protective device provided in an embodiment of the present application when encountering ground obstacles in the unloading state.
[0013] Explanation of the accompanying drawings: 1. Cargo box connecting bracket; 2. Frame connecting bracket; 3. Crossbeam connecting bracket; 4. Rear protective crossbeam; 5. Reinforcement plate; 6. Limit pin; 7. Fixed connecting plate. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0015] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.
[0016] The following is combined with Figure 1-2 This application is described in further detail.
[0017] Reference Figure 1A telescopic rear lower protection device for a dump truck comprises: a cargo box connecting bracket 1, a frame connecting bracket 2, a crossbeam connecting bracket 3, a rear protection crossbeam 4, a reinforcing plate 5 and a fixed connecting plate 7, the fixed connecting plate 7 is screwed to the frame, the frame connecting bracket 2 is connected to the fixed connecting plate 7 via a rotating shaft, one end of the cargo box connecting bracket 1 is connected to the rotating shaft of the cargo box bottom plate, the other end of the cargo box connecting bracket 1 is connected to the rotating shaft of the frame connecting bracket 2, the crossbeam connecting bracket 3 is connected to the rotating shaft of the frame connecting bracket 2, a limit pin 6 for limiting the rotation of the crossbeam connecting bracket 3 is provided between the crossbeam connecting bracket 3 and the frame connecting bracket 2, the reinforcing plate 5 is fixed to the crossbeam connecting bracket 3, and the rear protection crossbeam is fixed to the reinforcing plate 5.
[0018] Under normal driving conditions, when a rear-end collision occurs, the rear protection beam 4 rotates due to the impact, and the limit pin 6 deforms to absorb the impact, thereby avoiding the occurrence of serious traffic accidents.
[0019] When the dump truck is unloading, the cargo box is lifted, and the cargo box drives the cargo box connecting bracket 1 to rotate, thereby driving the frame connecting bracket 2 to rotate. When the cargo box is lifted to the highest position, the frame connecting bracket 2, the cross beam connecting bracket 3, the reinforcing plate 5 and the rear protective cross beam 4 are in a vertical state. Therefore, when the cargo box is unloading, the rear protective cross beam 4 is away from the unloading port at the rear of the cargo box, which helps prevent the collision of the cargo with the rear protective cross beam 4, thereby preventing the rear protective cross beam 4 from deforming and avoiding losses.
[0020] Reference Figure 2 When unloading, if the vehicle passes through a ground with obstacles or potholes, the rear protective beam 4 is prone to contact and deform with the ground obstacles. Therefore, a one-way limit pin 6 is used. When the protective beam 4 is resisted by the ground obstacles, it will be raised to avoid contact with the ground obstacles and cause collision and deformation. The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A telescopic rear lower protection device for a dump truck, characterized in that: include: A cargo box connecting bracket, a frame connecting bracket, a crossbeam connecting bracket, a rear protective crossbeam, a reinforcement plate and a fixed connecting plate, the fixed connecting plate is screwed to the frame, the frame connecting bracket is connected to the fixed connecting plate rotating shaft, one end of the cargo box connecting bracket is connected to the cargo box bottom plate rotating shaft, the other end of the cargo box connecting bracket is connected to the frame connecting bracket rotating shaft, the crossbeam connecting bracket is connected to the frame connecting bracket rotating shaft, a limit pin for limiting the rotation of the crossbeam connecting bracket is provided between the crossbeam connecting bracket and the frame connecting bracket, the reinforcement plate is fixed to the crossbeam connecting bracket, and the rear protective crossbeam is fixed to the reinforcement plate.