The invention discloses a self-rescue device for an automatic driving door when a car is drowning. It includes a first body, a hollow slider is threadedly installed on the threaded screw, and the first rotation shaft is located in the first sliding space to rotate and install a first A universal joint, the other side of the first universal joint is rotationally connected to the right-hand threaded screw, and a motor is used to drive and control the three-position threaded screw to adjust the position of the safety hammer. Save time in time, and the edge of the glass is the easiest to break, so it can be extended to the edge of the glass in a short period of time, greatly increasing the chance of survival, and a life buoy is stored in the middle, which can be used in a short time in an emergency Time to quickly inflate the lifebuoy to give people who can't swim a little vitality.

A rock claw for attaching to a corner of a demolition hammer, the rock claw including a first wall having a first inner side surface, a second wall having a second inner side surface joined to the first inner side surface along a first intersection, and a third wall having a third inner side surface. The third inner side surface is joined to the first inner side surface along a second intersection and the third inner side surface is joined to the second inner side surface along a third intersection.

A rock claw for attaching to a corner of a demolition hammer, the rock claw including a first wall having a first inner side surface, a second wall having a second inner side surface joined to the first inner side surface along a first intersection, and a third wall having a third inner side surface. The third inner side surface is joined to the first inner side surface along a second intersection and the third inner side surface is joined to the second inner side surface along a third intersection.

A manually operated pneumatic rock drill positioner for mining shaft wall boring, said positioner comprising: an articulated boom having one end for releasable coupling to a mobile ground platform and another end opposite said one end thereof; a rigid elongated drill turret defining a main body with an exposed outer wall, an inner wall opposite said outer wall, and first side edge wall and second side edge wall opposite said first side edge wall, and first end and second end opposite said first end, a lengthwise rail member integrally mounted to said turret outer wall; a carriage slidingly engaging said rail member, said carriage for slidingly carrying a pneumatic drill head over said turret exposed outer wall for reciprocating motion thereof between said first end and second end thereof; drive means for power actuating said carriage sliding motion along said rail member; a cradle member releasably anchored to said boom another end and defining a well sized and shaped for releasable engagement by an intermediate section of said turret inner wall and said first side edge wall thereof; anchoring means for anchoring said turret to said cradle member; first coupling means for pivotally connecting said turret to said cradle member for relative pivotal movement of said turret about said cradle member along a first axis; second coupling means for pivotally connecting said turret to said cradle member for relative tilting movement of said turret about said cradle member along a second axis transverse to said first axis; all in such a way that the intersection of said first axis and second axis coincides with the center of gravity of said turret positioner and is located within said turret main body, providing a balanced load-free manual operation of the positioner.

A manually operated pneumatic rock drill positioner for mining shaft wall boring, said positioner comprising: an articulated boom having one end for releasable coupling to a mobile ground platform and another end opposite said one end thereof; a rigid elongated drill turret defining a main body with an exposed outer wall, an inner wall opposite said outer wall, and first side edge wall and second side edge wall opposite said first side edge wall, and first end and second end opposite said first end, a lengthwise rail member integrally mounted to said turret outer wall; a carriage slidingly engaging said rail member, said carriage for slidingly carrying a pneumatic drill head over said turret exposed outer wall for reciprocating motion thereof between said first end and second end thereof; drive means for power actuating said carriage sliding motion along said rail member; a cradle member releasably anchored to said boom another end and defining a well sized and shaped for releasable engagement by an intermediate section of said turret inner wall and said first side edge wall thereof; anchoring means for anchoring said turret to said cradle member; first coupling means for pivotally connecting said turret to said cradle member for relative pivotal movement of said turret about said cradle member along a first axis; second coupling means for pivotally connecting said turret to said cradle member for relative tilting movement of said turret about said cradle member along a second axis transverse to said first axis; all in such a way that the intersection of said first axis and second axis coincides with the center of gravity of said turret positioner and is located within said turret main body, providing a balanced load-free manual operation of the positioner.

A demolition device support has an elongated body that includes a base frame, a base frame support member, and an upper support member. The base frame is fixedly attached to the base frame support member, which is pivotably connected to the upper support member by a hinge. A handle extension member is mounted at the upper end of the body, and includes a mount for receiving handlebar. A collar is mounted at the lower end of the body, and is configured to receive a portion of the housing of a demolition device. The demolition device support is used to support a demolition device in an ergonomic and efficient position during use of the demolition device.

A demolition device support has an elongated body that includes a base frame, a base frame support member, and an upper support member. The base frame is fixedly attached to the base frame support member, which is pivotably connected to the upper support member by a hinge. A handle extension member is mounted at the upper end of the body, and includes a mount for receiving handlebar. A collar is mounted at the lower end of the body, and is configured to receive a portion of the housing of a demolition device. The demolition device support is used to support a demolition device in an ergonomic and efficient position during use of the demolition device.

A rock claw for attaching to a corner of a demolition hammer, the rock claw including a first wall having a first inner side surface, a second wall having a second inner side surface joined to the first inner side surface along a first intersection, and a third wall having a third inner side surface. The third inner side surface is joined to the first inner side surface along a second intersection and the third inner side surface is joined to the second inner side surface along a third intersection.

A rock claw for attaching to a corner of a demolition hammer, the rock claw including a first wall having a first inner side surface, a second wall having a second inner side surface joined to the first inner side surface along a first intersection, and a third wall having a third inner side surface. The third inner side surface is joined to the first inner side surface along a second intersection and the third inner side surface is joined to the second inner side surface along a third intersection.

A power tool assembly is provided including a portable power tool, at least one first auxiliary part connected in a functional manner to the portable power tool, and a lanyard mounted on the power tool and the at least one first auxiliary part to hold the at least one first auxiliary part functionally connected to the portable power tool when the power tool assembly is dropped. The lanyard may include a belt and a sheaf surrounding the belt, where visual information is provided on the external surface of the sheaf.