66results about How to "Easy to assemble and carry" patented technology

The invention discloses a zig-zag derrick for replacing a disconnecting link. The to-be-solved technical problem is that a derrick adopted in an existing central plain running substation disconnecting link replacement construction method has defects in background technology. The adopted technical scheme is that the zig-zag derrick for replacing the disconnecting link comprises a left zig-zag rod, a right zig-zag rod, a suspending head, a left fixed seat and a right fixed seat; the suspending head is connected with upper ends of the left zig-zag rod and the right zig-zag rod; the left zig-zag rod and the right zig-zag rod are 'zig-zag'; the left fixed seat is arranged on the bottom end of the left zig-zag rod; the right fixed seat is arranged on the bottom end of the right zig-zag rod; the left zig-zag rod and the right zig-zag rod both comprise upper vertical columns and lower vertical columns; the upper vertical columns and the lower vertical columns are detachably connected; the suspending head comprises a left connecting plate, a right connecting plate and a lifting hook; the lower end of the left connecting plate is connected with the top end of the right zig-zag rod; the lower end of the right connecting plate is connected with the top end of the right zig-zag rod; the upper end of the left connecting plate and the upper end of the right connecting plate are connected with the lifting hook synchronously; the lifting hook is provided with a through hole.

The invention discloses a movable gunstock device for new recruit shooting training. The movable gunstock device comprises a front plate, a rear plate and two side plates, wherein the front plate, therear plate and the two side plates are each of a isosceles trapezoid structure and form a cavity of which the top surface and the bottom surface are hollow; a first seat plate is fixed to the top surfaces of the front plate, one side plate and the rear plate, and a second seat plate is fixed to the top surfaces of the front plate, the other side plate and the rear plate; the front plate, the rearplate and the two side plates are provided with noise reduction meshes; the top surface of the front plate is provided with an arc-shaped plate supporting groove; the position from the middle of thetop surface to the lower portion of the rear plate is provided with a V-shaped limiting groove; and gunstock plates are fixed to the top surfaces of the front plate, the rear plate and the two side plates. The movable gunstock device for new recruit shooting training is light in gunstock overall structure weight and convenient to assemble and carry, a gun can be well protected through rubber veneer, and the movable gunstock device can assist in judging and checking whether a gunstock is adjusted in place or not.