3results about How to "Solve the limit problem" patented technology

The utility model relates to the field of clamping of tensile testing machine, concretely relates to a kind of adjustable rectangular sample limiting device for tensile testing machine.A kind of adjustable rectangular sample limiting device for tensile testing machine is applied to upper clamp and lower clamp, including connecting base and limiting rod, the limiting rod is connected on connecting base by bolt;The side of the upper clamp, lower clamp is all provided with pin hole, the connecting base is provided with pin shaft, the pin shaft is inserted in the pin hole.The limiting rod is L type, including connecting portion and limiting portion, and long hole is provided on connecting portion;The top of connecting base is provided with clamping groove, and bolt hole is provided in clamping groove;The connecting portion is placed in clamping groove and detachably connected on the top of connecting base by bolt.The utility model reduces the clamping difficulty of rectangular cross-section sample, improves detection efficiency.

The utility model discloses an automatic carton packaging device, which belongs to the technical field of cartons and comprises a workbench, a connecting frame is arranged at one end of the workbench, a third motor is arranged at one end of the connecting frame, a third screw is coaxially and fixedly connected to the output end of the third motor, an adjusting frame is connected to the outer wall of the third screw in a screwed manner, and the adjusting frame is fixedly connected to the workbench. A second motor is arranged at one end of the adjusting frame, due to the fact that the third motor can control the rotating direction of the third screw, the third screw regulates and controls the moving direction of the adjusting frame, the second motor can control the rotating direction of the second screw, the second screw regulates and controls the moving direction of the driving frame, and in addition, the first motor can control the rotating direction of the first screw. According to the carton sealing device, the moving direction of the fixing frame is controlled through the first screw rod, the carton sealing device can be adjusted up and down, left and right and front and back, the position of the carton sealing device can be automatically adjusted, the problem that the carton sealing efficiency is low when carton packaging is conducted at present is solved, carton sealing is rapidly achieved, and practicability is improved.

This application discloses a hinge for a vehicle windshield protection assembly and the windshield protection assembly itself. The hinge includes a first hinge member and a second hinge member, which are rotatably connected via a pivot. The first hinge member is provided with a limiting member, and the second hinge member has a first limiting portion and a second limiting portion. When the second hinge member rotates relative to the first hinge member, it can selectively drive the first and second limiting portions to rotate around the pivot, so that either the first or second limiting portion can be selectively moved to a limited position. The limiting member moves relative to the first hinge member in a direction parallel to the pivot, so that it can selectively engage with the first or second limiting portion in the limited position. The hinge of this application realizes two limiting states, which can be applied to windshield protection assemblies, enabling them to maintain a stable shape in both open and closed states. The shape switching operation is simple and quick, and the structure is lightweight, meeting the needs of windshield protection assemblies.