5results about How to "Improve stretching efficiency" patented technology

The utility model relates to a kind of nonlinear compression device for low-energy ultra-short femtosecond pulse generation, belong to nonlinear compression device field.The device includes: multi-cavity system, including chirped cavity mirror pair and nonlinear medium, the reflecting surface of chirped cavity mirror pair is designed as when laser pulse multiple reflection, the dispersion accumulation of nonlinear medium is synchronously cancelled;Incident coupling lens group, located in the laser incidence end of multi-cavity system, and for after spot control in suitable size and divergence angle injection into multi-cavity system;Ejection collimating lens group, located in the laser emission end of multi-cavity system, and for collimating the outgoing beam of multi-cavity system.The device by introducing the chirped cavity mirror pair with specific chirp characteristics, compensates the dispersion effect caused by nonlinear medium, without increasing the thickness of nonlinear medium, it can ensure that self-phase modulation effect always maintains higher intensity, to improve the broadening efficiency of pulse spectrum, and reduce the complexity and demand of subsequent dispersion compensation.

The utility model provides a silk cotton stretching platform, which relates to the technical field of silk cotton stretching, and comprises an operation table, a guide groove, a long-range groove, a short-range groove, a sliding block, a hooking part, a groove, a fixed column, a through groove, an elastic piece, a fixed shaft, a short-range winding wheel, a long-range winding wheel, a through hole, a short-range connecting rope and a long-range connecting rope, annular gear rings are arranged on the outer surfaces of the short-range winding wheel and the long-range winding wheel, a mounting plate is arranged at the lower end of the fixed shaft, two motors are arranged on the mounting plate, gears are arranged at the output ends of the two motors, one gear is meshed with the gear ring on the short-range winding wheel, and the other gear is meshed with the gear ring on the long-range winding wheel. When the device is used, the four sliding blocks and the hooking parts on the sliding blocks can be driven to move through the two motors correspondingly, so that the four corners and the four edges of silk cotton are stretched, the silk cotton is effectively stretched, meanwhile, the requirement for manpower is reduced, and the stretching efficiency is improved.

The application discloses a leg stretching device for orthopedics, and relates to the technical field of leg stretching for orthopedics, which comprises a backrest plate, a headrest block fixing block installed at the right middle end of the backrest plate, a headrest block installed at the top middle end of the headrest block fixing block, a controller installed at the top front side of the headrest block fixing block, and handles installed at the top front and rear middle ends of the backrest plate. The lifting supporting mechanism is arranged, so that the patient can use the leg stretching device for orthopedics more conveniently. The adjusting and fixing mechanism is arranged, so that the position of the leg is prevented from deviating during treatment, and the treatment effect is not poor. The knee bending movement mechanism is arranged, so that the leg of the patient can be stretched and exercised, the recovery time of the patient is shortened, the foot plate stretching mechanism is arranged, so that the patient can stretch the leg ligament, the patient can comprehensively stretch the leg, and the leg stretching efficiency of the patient is improved.

The utility model discloses a kind of silver-plated copper wire processing is used tensile device, including processing table, the tensile mechanism is arranged on the processing table, clamping mechanism is installed on the tensile mechanism, the tensile mechanism includes sliding slot, the sliding slot is opened on processing table, the inner wall of the sliding slot is slidably provided with sliding block, the top of the sliding block is fixedly installed with receiving plate, the top of the receiving plate is fixedly installed with slide rail, the slide rail is slidably provided with sliding sleeve, the top of the sliding sleeve is fixedly installed with bearing platform. By being provided with tensile mechanism, two-stage extension tensile mode is used, it is convenient to improve the efficiency of stretching, and when not using, it is smaller, by being provided with clamping mechanism, the purpose of clamping and fixing different size silver-plated copper wire is played, and positioning effect is good simultaneously.

The utility model provides an oil cylinder of a chain stretching machine. The oil cylinder comprises an oil cylinder front cover, an oil cylinder rear cover, a cylinder barrel, a bolt and a piston rod. The oil cylinder front cover, the cylinder barrel and the oil cylinder rear cover are connected into a whole through bolts, the piston rod is arranged in the cylinder barrel, and the two ends of the piston rod extend out of the oil cylinder front cover and the oil cylinder rear cover respectively. The piston rod is of a hollow structure so that the chain can penetrate through the center of the piston rod. The utility model relates to the field of chain stretching. The chain stretching device is simple in structure, high in rigidity, capable of reducing energy consumption, stable in chain size and capable of improving efficiency, reducing cost and reducing labor force.