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 relates to wind power directly-driven circulated oxygen inflating equipment comprising a vertical force transmission shaft, wherein a wind wheel, a floating system, a gear switching device, a water lifting worm wheel and a fixing block are sequentially arranged on the vertical force transmission shaft from top to bottom, wherein the gear switching device comprises a gear box and the gear box is internally provided with a main gear and a secondary gear; the main gear is connected with the vertical force transmission shaft; the secondary gear is connected with a transverse force transmission shaft; and two ends of the transverse force transmission shaft are provided with a pair of flow pushing impellers with blades in opposite directions. According to the equipment disclosed by the invention, the wind wheel rotates under the effect of wind power to convert wind energy into power; a bottom water body is upwards circulated through transmitting force by an axial agitating worm wheel and the water lifting worm wheel of the vertical force transmission shaft; and shallow-layer water is transversely dispersed under the effect of the agitating worm wheel to be exchanged with a surface layer water body, so that large-area water body disturbance is realized. The wind power directly-driven circulated oxygen inflating equipment has the advantages of simple structure, compact arrangement, convenience for operation and energy source saving, and is suitable for improving the water quality of a river and a water pond.

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.

The present invention provides a mountain crack monitoring and early warning system, the system includes: insulating wire barrel, resistance wire, metal slide, metal connecting rod, first non-metallic support rod, second non-metallic support rod, first fixed rod, second Two fixed rods, ammeter, angle processor, vertical angle sensor, pillar, horizontal angle sensor, power supply; resistance wire is wound on the insulating wire barrel; one end of the metal connecting rod is connected to the metal sliding piece, and the metal sliding piece is connected to the insulating wire The resistance wire on the barrel is in contact, the first non-metallic support rod connects the other end of the metal connecting rod with the first fixed rod; the second non-metallic support rod connects the end of the insulating wire barrel and the vertical angle sensor, and the pillar connects the vertical angle sensor The sensor is connected with the vertical angle sensor and the horizontal angle sensor, and the bottom of the horizontal angle sensor is connected with the second fixed rod. The monitoring and early warning system of the invention has the advantages of simple and reliable structure, convenient operation and strong sensitivity, and can effectively monitor the real-time changes of displacement and angle of cracks in the mountain body.