Double-wheel touch locking type turning advancing mechanism and firefighting moped with same

Abstract

The invention relates to a vehicle capable of climbing on stairs, in particular to an accessory of a stair-climbing vehicle for firefighting, and provides a double-wheel touch locking type turning advancing mechanism and a stair-climbing vehicle. The double-wheel touch locking type turning advancing mechanism can rapidly advance on the stairs and make a turn on a stair landing rapidly and conveniently. The double-wheel touch locking type turning advancing mechanism mainly comprises a supporting leg assembly, a front touch locking assembly and a rear touch locking assembly. The supporting leg assembly comprises a left supporting leg and a right supporting leg, wherein wheels are arranged at the rear end of the left supporting leg and the rear end of the right supporting leg respectively, and a supporting leg front lock rod (51) and a supporting leg rear lock rod (52) are fixed to the supporting leg assembly. The front touch locking assembly comprises a front touch rod (31), a front touch rod crank arm (311), a front touch rod crank arm oval hole (312), a front connecting pin (321), a front locking dog pull rod (32), a front locking dog (33), a front lock box (34) and a front compression spring (35), wherein the front touch rod drives the front locking dog to move so as to stop or release the supporting leg assembly, and the rear touch locking assembly is similar to the front touch locking assembly.

Description

technical field [0001] The invention relates to a vehicle capable of climbing stairs, in particular to an accessory of a stair climbing vehicle used for fire fighting. The invention also relates to a stair climbing vehicle. Background technique [0002] With the development of modern society, a large number of high-rise and underground buildings have appeared in the current city, which has brought many difficulties to fire fighting. When fighting a fire, elevators generally cannot be used. In the fire fighting work, one of the more prominent difficulties is that firefighters need to carry personal protective equipment and on-site fighting equipment up and down the stairs. These equipments are very heavy. Due to physical limitations, firefighters can only carry a small amount of equipment with them. The equipment it carries is often not exhaustive. Due to the limited carrying capacity, the result is: either the firefighters carry too little on-site rescue equipment to carr...

AI Technical Summary

Problems solved by technology

The structure of the stairs is not a plane structure, which makes it difficult for wheeled vehicles to travel on the stairs, so there are currently some vehicles for climbing stairs that are crawler-type, such as the application number 201120422222.4, the authorization announcement number is CN202294912U, and the authorization announcement date is July 2012 A transport vehicle for stairs disclosed in the Chinese utility model patent on April 4

Although the crawler-type traveling mechanism is more suitable for walking on the stairs, it also has another defect on the flat ground-it is difficult to turn and the turning speed is slow. It is difficult to turn when two parallel crawlers are in contact with the ground. , where the landing itself between the stairs is narrow, it will be more difficult to turn using the tracked travel mechanism

In order to solve the problem of turning at the stair landing, a small number of patent documents have also been disclosed at present, such as an electric motor disclosed in a Chinese invention patent application published on May 12, 2010, as the application number is 200910222786.0, the application publication number is CN101704379A, and the application publication date is May 12, 2010. The stair climbing vehicle device turns on the stair platform through a total of four parallel wheels located on both sides of the crawler mechanism. However, since the four wheels are parallel, it cannot be turned by simply relying on the rolling of the wheels, so actually when turning It also requires people to assist in lifting and dragging the car body sideways, which not only consumes physical strength, but also has low turning efficiency

[0004] The current vehicles that can be used to climb stairs are generally not designed specifically for the needs of the firefighting field, and their stair climbing performance and turning performance cannot meet the needs of actual firefighting operations

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