Rotary footboard structure linked with the crew compartment door of the fire truck

Abstract

The invention relates to a rotary type foot pedal structure linked with a passenger room door of a fire fighting truck, and belongs to the technical field of fire fighting trucks. The fire fighting truck comprises a fire fighting truck chassis and a passenger room. The rotary type foot pedal structure comprises a foot pedal body, wherein the foot pedal body comprises a panel, a bottom plate, a first stair and a second stair. The rotary type foot pedal structure is characterized in that a ladder type sealing plate is arranged at a position on the fire fighting truck chassis and corresponding to a position under the passenger room door, a foot pedal body abdicating cavity is formed in the sealing plate, a space in the lower part of the right cavity wall of the foot pedal body abdicating cavity is formed into a bottom plate moving cavity, a stair abdicating cavity is formed in the middle part of the right cavity wall of the foot pedal body abdicating cavity, and a pedal supporting cavity is formed in the upper part of the right cavity wall of the foot pedal body abdicating cavity; the edge position of a second stair pedal stretches into the pedal supporting cavity. When the passenger room door is closed, the passenger room door drives the panel to enable the foot pedal body to extend into the foot pedal body abdicating cavity; when the passenger room door is opened, the passenger room door drives the panel to enable the foot pedal body to extend out of the foot pedal body abdicating cavity. Deformation is avoided, and high safety is guaranteed; the structure is simplified, and materials are saved; vibration is not generated; linkage effects are good.

Description

technical field [0001] The invention belongs to the technical field of fire-fighting vehicles, and in particular relates to a rotary pedal structure linked with a passenger compartment door of a fire-fighting vehicle. Background technique [0002] The fire truck crew compartment is usually located between the cab and the compartment used to carry the liquid storage tank (the liquid storage tank is filled with water or fire extinguishing foam), and the passenger compartment is equipped with a passenger compartment door for firefighters to enter and exit. Since the vehicle chassis of the fire truck is relatively high, a stepped or stepped tread is installed on the passenger compartment and below the door corresponding to the passenger compartment door. The so-called stepped tread refers to a or above the treads of the steps. [0003] Previously, the passenger compartment footboard was usually fixed on the vehicle by welding or by means of fasteners, and corresponded to the lo...

AI Technical Summary

Problems solved by technology

But still there are following deficiencies: one, due to the need to complete the process that the treadplates are displayed at the side of the vehicle and hidden at the bottom of the vehicle, it is not suitable to be configured at the position of the passenger compartment door, because firefighters After boarding the vehicle and entering the crew compartment, the running boards cannot be stored at the bottom of the vehicle, unless the running boards can be concealed after the disaster relief is completed and the vehicle returns to the destination and all firefighters get off the vehicle. On the way, the running board is still displayed on the side of the vehicle; secondly, since the running board is displayed on the side of the vehicle and returned to the bottom of the vehicle, it is manually operated, so it is inconvenient to use and is not conducive to saving firefighters’ every expense. Minutes, even every second, because for emergency rescue and disaster relief, saving every second of firefighters can win precious time and reduce disaster losses

[0006] Along with the launch of the "rotary footboard structure in the passenger compartment of a fire engine" mentioned by the invention patent authorization announcement number CN102951082B, the above-mentioned two points have been remedied, but the following shortcomings still exist in this CN102951082B: one, because the footboard is following the occupant When the door is opened and turned out of the car body, due to the lack of reliable support, it will deform after a period of use, so that the steps of the footboard gradually evolve from the original horizontal state to a state of inclination towards the floor. On the one hand, it is not conducive to the stepping of firefighters when they enter and exit the passenger compartment, and on the other hand, it will cause safety hazards for firefighters to enter and exit the passenger compartment; second, the structural system of the footboard needs to have side panels in addition to the panels, so the structure is relatively complicated and heavy ; Its three, owing to can not be in the position corresponding to the below of passenger compartment door and under the storage state that is in standby with car body and position, thereby can occur up and down vibration situation in fire engine running process, to the self of running plate protection disadvantage

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