Load-reducing suspension system of backpack fire extinguishing device
A technology of suspension system and fire extinguishing device, which is applied in the field of forest fire extinguishing
Pending Publication Date: 2021-06-08
杨根喜
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Problems solved by technology
The present invention realizes greatly reducing the peak force acting on the bearer by reducing the displacement amplitude, acceleration and frequency of the backpack fire extinguishing device in the vertical direction relative to the bearer's body when the forest firefighters carry the fire extinguishing device on their backs and march quickly in the mountain. Small energy consumption reduces the burden on the bearer, so as to solve the energy consumption of firefighters when they march in the mountains with heavy loads, and avoid muscle damage or even joint injury caused by excessive peak force
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[0020] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.
[0021] Specific embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The specific embodiments described below by referring to the drawings are exemplary, and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0022] see figure 1 and figure 2 , in the specific embodiment of the present invention, a kind of knapsack type fire extinguishing device load-reducing suspension system is made up of sliding module, deceleration module, upper limit bearing, track, track frame, weight-reducing air hole, lower limit bearing, buffer spring, adjusting screw rod.
[0023] Take o...
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The invention relates to a load-reducing suspension system of a backpack fire extinguishing device. According to the load-reducing suspension system of the backpack fire extinguishing device, the acceleration, amplitude and frequency of the backpack fire extinguishing device relative to the vertical displacement of the body of a user are reduced through the synergistic effect of a buffer spring and a speed reduction module in a track on an upper / lower limiting bearing connected to a sliding module, and the backpack fire extinguishing device can be relatively suspended. Peak force and energy consumption acting on the user of the backpack fire extinguishing device are greatly reduced, so that the problem of energy consumption of fire fighters with large loads during emergency marching in mountain is solved, muscle injury and even joint injury caused by overlarge peak force are avoided, and the fighting capacity of the forest fire fighters can be improved. The load-reducing suspension system is simple in structure, small in occupied space, light in weight, good in load reducing effect, low in cost and convenient to popularize and apply, and can be directly mounted between a body and a back plate mechanism of the backpack fire extinguishing device.
Description
technical field [0001] The invention relates to the technical field of forest fire extinguishing, in particular to a load-reducing suspension system of a knapsack-type fire extinguishing device. Background technique [0002] Forest fire is a natural disaster that is sudden, destructive, and difficult to rescue and deal with. Forest firefighters need to carry a 30KG wind-powered fire extinguisher or high-pressure water mist fire extinguisher and other knapsack fire extinguishers to quickly reach the designated fire line to extinguish the fire. Such a heavy-duty march in the mountains requires a greater peak force of this rigid object (usually exerted when walking) The peak force on the body is 2-3 times greater than the static force) can exert very large forces on the joints, which can cause muscle damage and even joint injuries. [0003] Research has shown that peak force correlates with the acceleration, frequency and amplitude of body heaving motions. The undulating moti...
Claims
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Login to View More IPC IPC(8): A62C15/00A62C3/02
CPCA62C3/02A62C15/00
Inventor 不公告发明人
Owner 杨根喜