2results about How to "Realize combined installation" patented technology

This utility model discloses a press-fit blind hole nut structure, belonging to the field of press-fit nut technology. It includes a first retainer and a second retainer, a nut component, and a fixing bolt. The fixing bolt is installed at the inner center of the nut component. The nut component includes a toothed sleeve and a nut sleeve. The toothed sleeve is fixedly installed on the upper outer surface of the nut sleeve. A toothed portion for riveting metal plates is provided at the center of the upper outer surface of the toothed sleeve. The toothed portion has an overall toothed ring structure. The fixing bolt and the toothed sleeve, as well as the fixing bolt and the nut sleeve, are all connected by threads. Several sets of teeth are distributed in a ring on the outer surface of the toothed portion, with one end of each tooth having a pointed shape. This provides a press-fit rotation limiting structure, preventing synchronous rotation of the nut during subsequent bolt installation after it is connected to the sheet metal material. This allows the nut and bolt to be tightened to the maximum extent, improving their performance.

The utility model relates to the technical field of protective screen device, disclose a kind of windbreak and sand fixation protective screen device for callerya plantation, including fixed frame, the left and right sides and below in fixed frame are all provided with limiting slot, below the limiting slot is fixedly connected with multiple first spring in, the first spring top is fixedly connected with telescopic plate, left and right sides limiting slot are all provided with protective screen frame, and protective screen frame is set in telescopic plate top, the upper side of the both sides of protective screen frame is all provided with insertion slot, the upper side of the both sides of fixed frame is all penetrated and fixedly connected with fixed cylinder, two the fixed cylinder adjacent side is all provided with telescopic slot. In the utility model, when the levering member of the both sides of fixed frame is pulled out, the insertion post can be pulled out from the insertion slot and retracted into the telescopic slot by the movement of pull rod, and the protective screen frame can be ejected from the limiting slot by the elastic force of the first spring, so that the protective screen frame can be easily disassembled and replaced.