4results about How to "Good elastic properties" patented technology

This utility model relates to the field of noise control technology, and in particular to a transformer noise isolation device, comprising a housing, the housing being a square frame adapted to a transformer, an opening on the front side of the housing for inserting the transformer, and an internal cavity for storing the transformer inside the housing; it also includes a hinge, a soundproof door panel, and a locking assembly, etc. A soundproof door panel is hinged to one side of the front opening of the housing, and an inner groove adapted to the soundproof door panel is provided at the edge of the front opening of the housing. A locking assembly for locking the soundproof door panel is provided on the housing. This utility model, through the sound insulation layer inside the housing, the high-density multi-layer structure of the soundproof door panel, and the application of a rubber sheet, combined with a fastening component, ensures that the rubber sheet is pressed tightly when the soundproof door panel is closed, thereby minimizing noise leakage from the gap between the door panel and the housing, achieving the effect of isolating transformer noise within the housing.

The coupler for the punching machine comprises a butt joint disc, two grooves are formed in the surface of the butt joint disc and matched with protruding teeth integrally arranged on corresponding connection discs respectively, a spline sleeve is arranged on the outer surface of a clamping sleeve table integrally arranged on the surface of the other side of each connection disc in a sleeved mode, and the spline sleeve is connected with the butt joint disc in a sleeved mode. The end face of the shaft coupling disc is fixedly provided with the spline pad in a bonding mode, the clamping sleeve table, the spline sleeve and the spline pad are clamped in a spline groove of the shaft coupling disc, and the shaft sleeve integrally arranged on the shaft coupling disc and the corresponding shaft body flat key are fixedly installed through a fastening bolt. The spline housing and the spline pad are made of polyurethane materials, impact vibration of a punching machine is effectively buffered, noise is reduced, and the service life is prolonged; installation and maintenance are easy and convenient, space is saved by means of the compact and coaxial disc structure, and the device is suitable for various punching machine devices with limited space.

The utility model relates to a hinge device for opening and closing a cabinet door. The hinge device comprises a hinging part, a spring assembly, a hinge arm and a connecting shaft, the hinge part comprises a mounting plate which is detachably fixed on the cabinet door, a first hinge seat which is integrally formed and fixed at the top end of the mounting plate, and a second hinge seat which is integrally formed and fixed at the bottom end of the mounting plate; the spring assembly comprises a first spring and a second spring, the upper end of the second spring is embedded in the first spring, the first spring is fixedly connected with the bottom end of the first hinge base, the top end of the second spring abuts against the bottom end of the first hinge base, and the bottom end of the second spring abuts against the top end of the second hinge base; one end of the hinge arm is connected with the first spring, and the other end is fixedly connected with the cabinet body; the connecting shaft penetrates through the first hinge base, the spring assembly and the second hinge base. The utility model has the advantages of easy opening and closing, increased opening and closing angle, improved connection stability and prolonged service life.

The utility model discloses a kind of angle-adjustable and wind-resistant damping flexible photovoltaic support, including photovoltaic board, support, steel strand and damping mechanism;The steel strand is connected with support, forms well-shaped support frame;The photovoltaic board is installed at the top of well-shaped support frame;The damping mechanism includes damping assembly, connecting assembly and angle adjusting assembly;The top of damping assembly is fixedly connected in the middle of steel strand, bottom and connecting assembly are rotatablely hinged together;The angle adjusting assembly includes fixed part, and fixedly installed with the regulator matched with connecting assembly on fixed part.The utility model damping mechanism and angle adjusting assembly cooperate, solve the problem that existing flexible photovoltaic support cannot adjust angle and wind-resistant damping performance is weak;Photovoltaic board can be adjusted according to the position change of sun Angle, to optimize light energy absorption efficiency, simultaneously, by the connection of damping assembly and steel strand, vibration caused by external factor is effectively dispersed and reduced, and the stability of entire system is improved.