4results about How to "Good limit function" patented technology

The utility model discloses an anti-falling micromotor high-bearing-capacity deep groove ball bearing which comprises an outer ring body, an outer supporting frame body is arranged at the inner end of the outer ring body, a ball body is installed on the inner side of the outer supporting frame body, an inner supporting frame body is arranged on the inner side of the ball body, and an inner ring body is installed on the inner side of the inner supporting frame body. The limiting groove is formed in the outer supporting frame body, a limiting block is arranged on the outer side of the limiting groove, and a limiting frame is arranged on the inner side of the outer ring body; the reinforcing assembly is arranged on the outer side of the inner ring body, the reinforcing assembly comprises a reinforcing plate, an anti-falling block and an anti-falling bolt, and the anti-falling block is arranged on the right side of the reinforcing plate. According to the anti-falling micromotor high-bearing-capacity deep groove ball bearing, the problems that an inner ring cannot be conveniently limited by an existing micromotor high-bearing-capacity deep groove ball bearing, and meanwhile the anti-falling function of the micromotor high-bearing-capacity deep groove ball bearing cannot be conveniently achieved are solved.

This utility model relates to the technical field of injection molds, and in particular to an injection molding structure combining a sliding block and a slanted ejector. It includes a front mold assembly, a rear mold assembly, a sliding block mechanism, and a slanted ejector mechanism. The front mold assembly has a front mold core, the rear mold assembly has a rear mold core, and the sliding block mechanism has a sliding block insert. The front mold core, rear mold core, and sliding block insert cooperate to form an injection cavity. The sliding block insert is located on the side of the injection cavity and is used to injection mold the side wall of the plastic part. The slanted ejector mechanism has a slanted ejector rod, and the sliding block insert has a guide slanted hole. The slanted ejector rod passes through the guide slanted hole, thereby cooperating with the sliding block insert to injection mold the undercut on the side of the plastic part. In summary, this design effectively handles the undercut on the side of the plastic part, while simplifying the mold structure, reducing manufacturing costs, and improving demolding reliability.

The utility model relates to the field of building materials, in particular to a square steel connecting piece for a novel building material, which comprises a floor support plate bottom die, a steel bar truss and a connecting piece, the steel bar truss consists of an upper chord rib, a lower chord rib and a web member, the connecting piece is connected with the floor support plate bottom die through bolts, and the connecting piece is of a hollow tubular structure with two through sides. A through hole is formed in the front face of the connecting piece, a first clamping opening and a second clamping opening with outward openings are formed in the end faces of the two sides of the connecting piece, an inclined face extending downwards is arranged above the second clamping opening, and the lower chord ribs are clamped in the first clamping opening and the second clamping opening respectively. The stability of the steel bar truss in the cement pouring process is enhanced, the possibility that the steel bar truss falls off in the construction process is reduced, and the problems in the background technology can be effectively solved.

This application relates to a vibration damper and a vibration damping system, belonging to the field of precision vibration damping technology. The vibration damper includes a bottom plate and a top plate arranged at relative intervals, and a spring damping assembly and an anti-rotation limiting assembly disposed between the two. One end of the spring damping assembly is fixed to the top plate, and the other end is fixed to the bottom plate. The anti-rotation limiting assembly includes a limiting support, a limiting structure, and an elastic body. The limiting support is fixed to the bottom plate, and a limiting groove is formed on its side facing the top plate. The limiting structure is fixed to the top plate and is at least partially accommodated in the limiting groove. The elastic body is located between the outer wall of the limiting structure and the inner wall of the limiting groove, separating the outer wall of the limiting structure from the inner wall of the limiting groove. Thus, when the spring damping assembly twists, the limiting structure can compress the elastic body, at least to a certain extent preventing the top plate from horizontally shifting or twisting relative to the bottom plate. Therefore, it can improve the positional accuracy of the object being damped and improve the reliability of the vibration damper.