Hard rock blasting protection device
The utility model discloses a hard rock blasting protection device, which relates to the technical field of blasting protection devices and comprises a base, a baffle is fixed on the outer wall of the base, a fixing rod is fixed on the upper surface of the base, and a protection plate is sleeved on...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a hard rock blasting protection device, which relates to the technical field of blasting protection devices and comprises a base, a baffle is fixed on the outer wall of the base, a fixing rod is fixed on the upper surface of the base, and a protection plate is sleeved on the outer wall of the fixing rod. According to the energy absorption type hard rock blasting protection device with the double protection effects, the damping and buffering effects are provided for a limiting plate through the cooperation effect between a first damper and a reset spring, and meanwhile the rotation buffering effect is provided for two sets of blocking plates through telescopic sliding of the limiting plate; when impact waves drive broken stones to splash out, kinetic energy of the broken stones is consumed under the first-layer blocking effect of the blocking plate, the broken stones rapidly impact the protection plate after the blocking plate is opened, and secondary absorption of the kinetic energ |
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