5 results about "Female structure" patented technology

The utility model provides an assembly type cast-in-place beam formwork which comprises a head U-shaped prefabricated formwork body, a middle U-shaped prefabricated formwork body and a tail U-shaped prefabricated formwork body, male structures are arranged on the head U-shaped prefabricated formwork body and the middle U-shaped prefabricated formwork body respectively, female structures are arranged on the middle U-shaped prefabricated formwork body and the tail U-shaped prefabricated formwork body respectively, and the male structures are connected with the female structures. The male structure on the head U-shaped prefabricated formwork is connected with the female structure on the middle U-shaped prefabricated formwork in an inserted mode, and the male structure on the middle U-shaped prefabricated formwork is connected with the female structure on the tail U-shaped prefabricated formwork in an inserted mode. By means of the overall arrangement, the formworks can be fixed without bolts before pouring, the formworks can be combined with concrete after pouring is completed, the trouble of dismantling the formworks is avoided, meanwhile, the formworks can replace part of the concrete, transportation of the concrete is reduced, and meanwhile construction efficiency can be improved.

The utility model discloses a square tube male-female structure which comprises a male tube body, a female tube body is arranged on one side of the male tube body, a baffle is arranged at one end of the male tube body, the baffle abuts against the female tube body, an installation block is fixedly connected to the interior of the female tube body, a clamping plate is fixedly connected to one side of the installation block, an opening is formed in the male tube body, and a fixing groove is formed in the outer side of the opening. According to the utility model, the baffle plate is arranged on the male pipe body and is propped against the female pipe body, and the design of the mounting block and the clamping plate is utilized, so that the accurate butt joint between the male pipe body and the female pipe body is ensured. And by arranging the telescopic spring, the clamping column, the matched groove and the matched clamping groove, after the male pipe body and the female pipe body are in butt joint in place, the clamping column can automatically enter the groove to form stable connection, so that the male pipe body and the female pipe body are prevented from deviating during connection, and the overall strength and durability of connection are improved.

The application relates to an amphibious aircraft float, a stamping die and a manufacturing method. The amphibious aircraft float is in the shape of a hull and is hot-stamped from a thermoplastic composite material composed of a thermoplastic resin and reinforcing fibers. The stamping die comprises an upper die, a lower die, a positioning device and a blank clamping device, the opposite surfaces of the upper die and the lower die are provided with male and female structures which are complementary to each other, the positioning device is fixed on the lower die, and the blank clamping device is used for clamping a blank to be stamped and is positioned by the positioning device so that the blank is positioned and supported directly above the female structure. The manufacturing method comprises the following steps: providing a stamping die, preparing a blank, heating the blank, hot-stamping and edge trimming. The amphibious aircraft float has the advantages of high strength, fatigue resistance, impact resistance and damage tolerance.

The utility model provides a compact installation structure of a door opener motor, which comprises an installation structure and a door opener motor main body, the installation structure comprises a male structure and a female structure, the male structure and the female structure are detachably and fixedly connected, and the female structure is fixedly installed outside the door opener motor main body; according to the utility model, through the integral arrangement, the shell does not need to be opened during installation or disassembly, so that the installation steps are reduced, and the door opening motor main body is convenient to disassemble and maintain when the door opening motor main body breaks down in the later period, thereby improving the disassembly, assembly and maintenance efficiency.

The present invention provides a secure zipper bag including a first snap-fit ​​portion and a second snap-fit ​​portion. The first and second snap-fit ​​portions include a total of at least two male structures formed in such a way that their tips have arrow-shaped cross-sections extending from the first and / or second snap-fit ​​portions toward the opposing snap-fit ​​portions; female structures positioned at the snap-fit ​​portions toward each of the corresponding male structures and having a U-shaped structure that wraps around the sagittal tip of the male structure, with its tip bent back toward the tip of the male structure; and at least two complementary structures formed at the first and / or second snap-fit ​​portions between the first and / or second bases and the tip of the female structure of the opposing snap-fit ​​portion, extending toward the opposing base.