4results about How to "Stable design" patented technology

This utility model provides a temple connection structure and eyeglasses, relating to the field of eyeglasses. It solves the problem that fixing the temples to the frame with screws is prone to loosening and wear, leading to a decrease in fixing force. The temple connection structure includes a receiving shaft, a plug-in shaft, and a rubber gasket. One of the temples and the frame has a single hinge plate fixed to it, while the other has a mating groove. The single hinge plate extends into the mating groove and has a first hole. The rubber gasket is located on one side or opposite sides of the single hinge plate, with a portion of the gasket extending into the first hole. The receiving shaft passes through the groove wall of the mating groove and the first hole. The plug-in shaft is inserted into the receiving shaft with an interference fit, thereby rotatably connecting the temples to the frame. The rubber gasket is clamped between the groove wall of the mating groove and the single hinge plate. The plug-in shaft, inserted into the receiving shaft with an interference fit, forms a solid whole, achieving a hinged connection between the temples and the frame. The rubber gasket provides smooth and uniform damping for opening and closing the temples.

This utility model discloses a prefabricated building structure for multi-earthquake zones, including a ground surface, prefabricated wall panels, composite beams, and composite slabs. The ground surface is equipped with connecting steel bars and steel shims. The bottom of each prefabricated wall panel has a first embedding groove and a casting groove at its lower part. The first embedding groove is fitted with the steel shims, and the connecting steel bars are embedded in the casting groove. Load-bearing walls are provided between the prefabricated wall panels. The top of each load-bearing wall panel has an upward-opening second embedding groove. The composite beam is embedded in the second embedding groove, and the composite slab is placed on top of the composite beam. This utility model achieves good stability by vertically placing the prefabricated wall panels on the ground and fixing them with grout, then supporting them with an "L"-shaped vertical frame and telescopic support rods. Load-bearing walls are set between the prefabricated wall panels, and the prefabricated wall panels and load-bearing walls are integrated by casting with second connecting steel bars. The two ends of the composite beam are embedded in the second embedding grooves, and the composite slab is placed on the composite beam to form an integrated structure. Reinforcing steel bars are provided on the top of the slab for easy casting, making it suitable for use in multi-earthquake zones.

The piston ring assembly (1) includes first and second continuous sealing rings (2, 4) and an elastic ring seat (3). The first and second sealing rings (2, 4) extend in a circumferential direction (U) and each has an outer peripheral surface (2a, 4a). The first sealing ring (2) has a first center point (M1) relative to its outer peripheral surface (2a), and the second sealing ring (4) has a second center point (M1) relative to its outer peripheral surface (4a). The first and second sealing rings (2, 4) each have a longitudinal axis (L) extending perpendicular to the circumferential direction (U). The ring seat (3) extends in the circumferential direction (U), and the ring seat (3) and the first and second sealing rings (2, 4) are designed to be mutually adapted such that the first and second sealing rings (2, 4) are arranged successively in the direction of the longitudinal axis (L) into the ring seat (3), and their first and second center points (M1, M2) are arranged radially spaced apart from each other relative to the longitudinal axis (L). When the piston ring assembly (1) is used according to the invention, these sealing rings (2, 4) press against the inner wall (11a) of the cylinder body (11) in opposite directions.

This invention discloses a power fitting fixing device, including a base and a device body. The device body includes a power housing, a connecting block, and two housing anchor points. The connecting block is disposed on the inner wall of the power housing, and the two housing anchor points are symmetrically disposed on the inner wall of the power housing. This invention achieves power steering through a bevel gear, driving a hollow screw, which in turn pushes the clamping assembly. This allows the end locking tongue to generate a large axial locking force that increases non-linearly at the end of its stroke, forming a structural self-locking upon completion of the action. Simultaneously, by integrating a torque-limiting clutch, the final clamping force is precisely anchored at a preset threshold, achieving mechanical standardization of the fastening operation and effectively avoiding human error. This purely mechanical force-amplifying and protective structure not only ensures the long-term durability of the equipment in harsh environments but also significantly reduces on-site construction intensity and maintenance costs through efficient automated operation.