Rotary pedals for fire engine crew compartment

Abstract

The invention relates to the technical field of fire fighting trucks, in particular to a fire fighting truck passenger room rotary pedal. The fire fighting truck passenger room rotary pedal structurally comprises a pedal body. The pedal body is hidden inside in a common state. When a passenger room door is opened, the pedal body is rotated along with the door to be exposed so as to be trodden. A friction plate with the position fixed relative to a passenger room is arranged below the moving track of the pedal body. The pedal body makes contact with the friction plate when bearing downward treading force. The pedal body and the friction plate are rubbed in the exposing moving direction till the pedal body is braked. Compared with the prior art, disengagement and engagement between the friction plate and the pedal body are controlled and the braking state and the braking releasing state of the pedal body are rapidly switched so that it can be guaranteed that firemen can rapidly and safely get in and come out of the passenger room; and especially under the condition of narrow space rescue and night rescue during which the passenger room door cannot be completely opened, the potential safety hazard that the firemen fall down when getting on and off the pedal body rapidly is effectively avoided, and therefore precious rescue time is saved.

Description

technical field [0001] The invention relates to the technical field of fire trucks, in particular to a rotating pedal for a passenger compartment of a fire truck. Background technique [0002] With the development of science and technology, fire trucks include air compressed foam fire trucks, water tank foam fire trucks, emergency rescue fire trucks, etc. At present, most fire trucks have an independent crew compartment, which is usually located between the cab and the body used to carry the liquid storage tank (with water or fire-fighting foam inside), and the crew compartment is equipped with a crew compartment door for firefighters to enter and exit . Since the vehicle chassis of the fire truck is relatively high, a stepped pedal (that is, a pedal with more than one step) is installed at the position corresponding to the lower part of the passenger compartment door. [0003] Most of the existing pedals are welded or fixed on the vehicle frame below the passenger compart...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing pedals are welded or fixed on the vehicle frame below the passenger compartment door by means of fasteners. Although this fixed pedal structure can meet the requirements of firefighters getting on and off the car, its defects are: 1) The pedal is installed under the door of the passenger compartment and exposed to the side of the vehicle body, so it takes up more rescue space and is easily damaged; 2) During rescue, it is necessary to park the fire truck at a spacious position on both sides, and the occupant must Only when the door is fully opened can the firefighters enter and exit through the pedals, which makes it inconvenient for the firefighters to enter and exit, and affects the rescue speed; Personnel cannot get on and off the vehicle through fixed pedals, which seriously delays precious rescue time

But, the problem that this tread plate structure exists is, when the firefighter needs emergency access and opens the passenger compartment door quickly, the tread plate body also exhibits the bottom of the passenger compartment rapidly along with the passenger compartment door, when the firefighter walks out of the passenger compartment and steps on When stepping on the footboard body, due to inertia, the footboard body is still rotating, which cannot guarantee the safety of firefighters when they enter and exit quickly, especially in narrow rescue and night rescue environments where the passenger compartment door cannot be fully opened, firefighters are more likely to appear There is a safety hazard of falling when quickly going up and down the stepped steps, thus delaying precious rescue time

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