Safety protection device for mine blasting

Abstract

The invention relates to a safety protection device for mine blasting, and discloses the safety protection device which forms a creeping type structure through cooperation of a protection cover plate and a bottom plate, reduces the impact bearing area of the protection device, protects workers during blasting, and can buffer and release blasting impact force. The safety protection device is characterized in that two bottom side baffles are perpendicularly arranged at the two sides of the bottom plate respectively, two supporting foot frames are arranged at one end of the bottom plate and located at the two sides of the bottom plate respectively, trundles are arranged on the supporting foot frames, one group of limiting plates are arranged at the other end of the bottom plate, each group of limiting plates are composed of at least four limiting plates, and a traction rod is arranged at the other end of the bottom plate; and a protective lying cushion is arranged at the top of the bottom plate, one end of an arc-shaped protective plate is hinged to the other end of the bottom plate through a hinge lug, a protective cover plate is obliquely arranged at the other end of the arc-shaped protective plate, an observation window is embedded in the middle of the arc-shaped protective plate, and a cover pulling handle is arranged at the bottom of the arc-shaped protective plate.

Description

technical field [0001] The invention relates to a safety protection device for mine blasting, which relates to a device for protection during mining blasting, and belongs to the field of mining engineering. In particular, it relates to a safety protection device that cooperates with a protective cover plate and a bottom plate to form a crawling structure, reduces the impact bearing area of ​​the protective device, protects workers during blasting, and can buffer and unload blasting impact force. Background technique [0002] Blasting operation is a commonly used auxiliary construction method in mine production operations. It is usually carried out by professional blasting personnel. A large amount of flying gravel and harmful gases will be generated during blasting. Although the operators will withdraw from a certain safe distance , it still has the risk of being hit and poisoned. Traditionally, after withdrawing from a safe distance, blasters will hide behind wooden boards ...

AI Technical Summary

Problems solved by technology

[0002] Blasting operation is a commonly used auxiliary construction method in mine production operations. It is usually carried out by professional blasting personnel. A large amount of flying gravel and harmful gases will be generated during blasting. Although the operators will withdraw from a certain safe distance , it still has the risk of being hit and poisoned. Traditionally, after withdrawing from a safe distance, blasters will hide behind wooden boards and other bunkers for protection. However, the structural strength of wooden boards and other bunkers is low. Afterwards, it is easy to break, and it is difficult to form effective protection for the operators. In the prior art, special blasting shields or protective plates are used for protection. The impact of the impact force is easy to be lifted by the impact force or the impact force is transmitted to the rear human body to cause transmission damage, and the protection and impact resistance are poor

[0003] Notification number CN111721175A discloses a mine blasting rock protection device, including a protective plate, the lower surface of the protective plate is fixedly connected with a fixed plate, and the upper surface of the fixed plate is provided with a fixing mechanism for fixing the protective device. The fixing mechanism includes a threaded hole opened on the upper surface of the fixing plate, the inner wall of the threaded hole is threadedly connected with a rotating screw, and the bottom end of the rotating screw runs through the upper surface of the fixing plate and extends to the lower surface of the fixing plate, so The lower surface of the rotating screw rod is fixedly connected with a tapered connecting column, and the surface of the tapered connecting column is fixedly connected with tapered threaded teeth. The device is erected on the ground during protection, and directly bears the impact of blasting directly, which is easy It is tilted by the impact force due to unstable fixation, and the impact resistance is poor

[0004] Notification number CN211824111U discloses a hand-held protective plate for coal mine blasting, including a base plate, a protective plate, a baffle plate, a top plate, a pull rod, an observation mirror, a plunger, and a roller, and the left side of the base plate is fixedly connected with a protective plate. When blasting the impact force, it belongs to the frontal resistance, and the rear force is relatively large, which is easy to cause secondary impact transmission damage to the operator holding the support

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