In the rapid development of science and technology, military equipment with each passing day, with the "people-oriented" concept of change and logistics support capabilities continue to improve, the casualties sent by the original single railway transport sent to the development of rail transport, motorized, Air transport and other coordination of a variety of transport delivery mode. Among them, the initial emergency treatment of the wounded and its safe and fast transfer to the war treatment line is extremely important. Traditional transport stretchers play an irreplaceable role in saving the lives of the wounded, but in the course of the transport of the wound may have no secondary damage, and there are manpower, easy to expose, inconvenience and other shortcomings. At the same time, our military stretcher is still their own people a machine a poor environment, not easy to wash, poor comfort, functional single, poor mobility, bulky, easy to push, drag, pull, hanging and other issues. To this end, we combine the characteristics of the common stretcher of the troops, in order to minimize the exposure of sick and wounded and ambulance personnel, to achieve a single fast and safe delivery of sick and wounded, the development of the stretcher auxiliary device to meet the needs of wartime troops.

At present, the domestic equipment with a sliding wheel stretcher is mainly back folding folding wheel stretcher and pullable four fold military stretcher. The back-to-back folding wheel stretcher has a sliding wheel that can carry out the traction of the wounded and the rapid transfer of the complex conditions. But the stretcher sliding wheel is a fixed direction wheel, the transport process is not easy at any time according to the terrain to adjust the direction of forward, to avoid the enemy fire; and stretchers and pulleys for the complete set of equipment, the higher cost. The composition of the pullable quadruple military stretcher is similar to that of this unit and is reconstructed from the original protector of the grassroots, but the stretcher is assembled in a combination of a fixed wheel and a caster. The direction of the wheel is relatively limited, can not change the direction of the forward direction at the same time, due to the types of pulleys at both ends of the stretcher are different, transport sick and wounded need to distinguish between the head of the wound (universal wheel) and foot (fixed wheel), the relative increase The difficulty of operation. We have developed a stretcher attachment for the caster, fixed on the stretcher can be stretched in the delivery of sick and wounded in the process of any direction of any change; the same time, because the device is now the grass is now allocated four fold military stretcher As a basis for the development, only the purchase and dispatch of the auxiliary device in the grassroots assembly, you can achieve all the stretchers with the simplicity of maneuver operation, greatly saving the cost of equipment; the stretcher attachment by four identical caster Composition, operation without distinction between the head and feet, easy to operate. Therefore, the stretcher attachment device to improve the efficiency of ambulance transport, improve the combat effectiveness of the troops has great significance.