2results about How to "Does not affect normal function" patented technology

The utility model belongs to the technical field of belt conveyors, and particularly relates to a sawtooth cam type belt backstop which is characterized in that the sawtooth cam type belt backstop comprises cams, a wheel shaft and baffle rings, the two ends of the wheel shaft are fixedly connected with a belt conveyor rack, the wheel shaft is connected with more than two cams through keys, the baffle rings are arranged on the two sides of the cams, and the baffle rings are arranged on the wheel shaft. A spring retainer ring is arranged on the wheel shaft on the outer side of the baffle ring; a gap is formed between the key and the cam, and the cam is in a movable state within the range of 15 degrees; after the cam is installed, the distance between the upper edge of the cam and the bottom of the belt is not larger than 1 mm. Compared with the prior art, the device has the advantages that the device and the roller backstop can be used at the same time, normal functions of the roller backstop are not affected, and the device serves as an upgrading scheme for preventing material returning of the belt conveyor, friction force between the backstop and a belt can be further increased, resistance for preventing the belt from reversing is enhanced, smooth backstop is achieved, and the service life of the belt conveyor is prolonged. Accident handling time is reduced, and production efficiency is improved.

The utility model relates to a fish rod front plug structure, including inlay, inlay has the frame of hexagon, frame has certain thickness, and the outside surface of frame is fixedly connected with the outer sleeve spare, and the rear end of outer sleeve spare is fixedly connected with the inner sleeve spare of diameter reduction, and the inner sleeve spare is hollow cylinder shape, the front side of inlay is to the convexity of forward, and a plurality of around the central axis annular arrangement's leak hole is seted up on inlay, and leak hole is connected with inner sleeve spare, the fish rod front plug through leak hole and the crack can realize the function that still has the control water, the function of arranging the accumulated water after the pole section retraction handle section, and do not influence the normal function of front plug, the shape of inlay and the setting of slot can increase the aesthetic property of front plug.