Safety equipment based on sand for fire fighting

Abstract

The invention provides safety equipment based on sand for fire fighting. The safety equipment comprises a main sand box, a material conveying channel and a discharging box; the main sand box is communicated with the discharging box through the material conveying channel, a spiral auger is arranged in the material conveying channel, a discharging port is formed in the lower end of the discharging box, a shaft sleeve is arranged in the discharging box, a conical sleeve is arranged at the lower end of the shaft sleeve, and adjusting plates are hinged to the edge of the lower end of the conical sleeve; a first driving part is arranged at the upper end of the discharging box, a pull rod movably connected in the vertical direction of the shaft sleeve is inserted into the shaft sleeve in a penetrating mode, and the lower end of the pull rod is located on the lower portion of the conical sleeve and provided with an annular push ring making contact with the lower end faces of the adjusting plates; and the upper end of the discharging box is provided with a second driving part used for driving the pull rod to reciprocate in the vertical direction. The safety equipment is convenient to use and wide in sand throwing range, and meanwhile the sand throwing range can be adjusted.

Description

technical field [0001] The invention belongs to the technical field of fire-fighting safety equipment, in particular to sand-based fire-fighting safety equipment. Background technique [0002] In some fire scenes, it is often impossible to extinguish the fire with water. At this time, sand is used to extinguish the fire. The sand extinguishing is mainly to isolate the oxygen needed for the flame to burn. At present, most of the devices used to throw sand to extinguish the fire can only throw sand to the fire. However, during the sand throwing process, due to the characteristics of the sand, the sand is easy to cause accumulation, which cannot cover a large area of ​​fire well. In addition, in the fire environment, the fire spread generally spreads quickly. In order to achieve better Generally, the range of sand throwing needs to be adjusted to ensure the best fire extinguishing effect, but the current sand throwing devices do not have the adjustment function, resulting in po...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of safety equipment based on sand and gravel fire-fighting to solve the problems in the prior art that the sand-throwing fire-fighting device has a complex structure, is inconvenient to use, and sand is easy to accumulate during the sand-throwing process, and the sand-throwing range cannot be adjusted.

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