68results about How to "Improve anti-rotation effect" patented technology

The invention relates to a pen cap, which comprises a sleeve. According to the technical scheme, the sleeve is provided with convex ribs integrated with the sleeve, and the convex ribs are arranged in a manner of protruding and along the length direction of the sleeve. The pen cap can be sleeved outside a pencil, a ballpoint or a signing pen as needed, and rotation of the pen can be hindered by the convex ribs on the pen cap. Moreover, when the convex ribs are broken at intervals, better anti-rotation effects can be achieved.

The invention discloses a buffer type differential anti-falling device. The buffer type differential anti-falling device comprises a shell provided with an opening, a frame body arranged in the shell,a winding device arranged on the frame body and capable of winding up a rope body when rotating forwards and unwinding the rope body when rotating backwards, and an elastic reset part used for driving the winding device to rotate forwards. A plurality of pawls are arranged on a fixed member; when a braking device rotates, the plurality of pawls are synchronously thrown out to be in contact with ratchet teeth, so that the braking speed is high and the braking reliability is high; and the plurality of pawls can equally share impact force during braking, so that the impact force on the interiorof a differential is small and the stability of all parts is high.

The invention discloses a stranding and cabling device for optical cable production, which comprises a supporting mechanism and a winding mechanism, wherein the supporting mechanism mainly comprises asupporting frame, a working plate and a rack. The stranding and cabling device is characterized by further comprising a stranding mechanism, a placing mechanism and an anti-back-twist mechanism, wherein the stranding mechanism comprises a rotating plate, a guide frame and a first placement frame, a wire through hole I is formed in the center of the rotating plate, the rotating plate is rotationally connected to the top of the working plate, a protruding block is arranged at the bottom of the rotating plate, the protruding block penetrates through the working plate and is connected to a motorthrough a chain, and the first placement frame is rotationally connected to the outer side of the top of the rotating plate. Through the arrangement of the placement mechanism, the function of facilitating feeding is achieved; the whole anti-back-twist mechanism is small in structure, simple in structure and close to the rack, so that the self-rotation of the optical cable can be effectively prevented, and the anti-rotation effect is good.

The invention relates to a novel sliding nut for a sliding rail of an automobile seat. The sliding nut comprises a hanging part, a sliding part and a threaded through hole; the lower surface of the hanging part is coaxially provided with the sliding part integrally, the edges of the front side and the rear side of the sliding part are flush with the edges of the front side and the rear side of thehanging part in an up-and-down mode, the upper surface of the sliding part is connected and integrated with the lower bottom surface of the hanging part in parallel, side edge sliding grooves are symmetrically formed in two horizontal sides between the sliding part and the hanging part, and the interiors of the hanging part and the sliding part are coaxially provided with the threaded through hole in a communicating mode. According to the novel sliding nut, adjustment is quite convenient and rapid, and time and labor are saved; when two horizontal ends of the hanging part are arranged close to the inner walls on two sides of the sliding rail, the inner walls on the two sides of the sliding rail have a limiting effect on a side wall of the sliding nut, so that the sliding nut has a good anti-rotation effect, and use effect is guaranteed; and meanwhile, the sliding nut has a sliding effect, therefore, functions of nuts are enriched, types of the nuts are enriched, the application rangeis expanded, and use requirement is met.

The invention provides a hydraulic high-frequency DTH (down-the-hole) rock-breaking drill for a rotary pile drill hole bottom, relates to a rock breaking device on a rotary pile drill, and mainly solves the problems that one-step pore forming cannot be realized no matter what kind of a hydraulic pressure percussion drill is used for drilling by the rotary pile drill, a drilling bucket is required to be replaced for pore broadening, and stone ballast needs to be collected. A swivel joint assembly of the hydraulic high-frequency DTH rock-breaking drill for the rotary pile drill hole bottom is connected to a retractable drill rod through a rotation stopping mechanism; a central shaft of the swivel joint assembly is connected to a vibratory hammer outer cover at the lower end of the swivel joint assembly through an upper flange; the vibratory hammer outer cover is connected with vibratory hammers in the middle of the vibratory hammer outer cover through shock-absorbing blocks; the vibratory hammers are connected with a drilling bucket assembly at the lower ends of the vibratory hammers through lower flanges; 11-16 drill bits are fixed to the lower end of the drilling bucket assembly. The hydraulic high-frequency DTH rock-breaking drill is large in impulsive force, and high in pore-forming speed; broken stone particles can be collected while the vibratory hammer vibrates for impact, and the effect that the rotary pile drill utilizes a common drilling bucket to construct at the soil layer is realized; the hydraulic high-frequency down-the-hole rock-breaking drill is good in rotation stopping effect, and high in response speed.