2results about How to "No fire hazard" patented technology

The present invention discloses a large vehicle anti-collision device, which relates to the field of vehicle protection, including an anti-collision seat, a buffer box and an anti-collision frame; the buffer box includes an anti-collision plate, a bearing tube and a sliding plate; a partition is provided in the middle of the bearing tube, the right side of the partition is connected to the sliding plate, the upper side of the partition is a cavity, and the lower side of the partition is a water cavity; a water pipe is fixed on the sliding plate; a plurality of positioning grooves are provided on the anti-collision seat, and a positioning rod is fixed horizontally in the positioning groove; an anti-collision strip is provided on the left side of the positioning rod; a limiting ring is provided in the middle of the outer peripheral side of the bearing tube, and a plurality of first springs are provided on the right end face of the limiting ring; a telescopic mechanism is provided on the right end face of the bearing tube. The anti-collision performance of the device is improved by providing the anti-collision seat, the buffer box and the anti-collision frame; the energy generated by the collision can be absorbed by providing the water cavity, the water pipe and the positioning rod; the first spring and the telescopic mechanism are used to buffer the impact force on the anti-collision seat and the buffer box, and the limiting ring is used to limit the buffer box when it is reset after the collision.

The utility model discloses a novel environment-friendly die-casting spraying decoration outer cylinder structure which is integrally formed in a die-casting mode. The outer barrel comprises an outer barrel body, an ignition cavity and a gunpowder cavity, wherein a sealing layer and a connecting channel are arranged between the ignition cavity and the gunpowder cavity; the volume of the ignition cavity is far smaller than that of the gunpowder cavity, and the ignition cavity is located at the upper position during vertical use; an arc-shaped sealing outer wall protruding upwards is arranged above the sealing layer, an upper ignition cavity of an inverted-cone-shaped structure is arranged in the middle of the sealing outer wall, a lower ignition cavity of a cone-shaped structure is correspondingly arranged below the sealing layer, and cone-shaped heads between the two cavities are communicated. And the lower ignition cavity is downwards in smooth transition with the inner wall of the circular-arc-shaped upwards-convex sealing opening above the gunpowder cavity. In order to solve the problems, the utility model provides a novel environment-friendly die-casting firework spraying outer cylinder structure which is simple in structure, convenient to operate, capable of being integrally formed, produced in batches, good in firework setting-off effect, environment-friendly, free of pollution, free of fire hazards and stable in spraying effect.