126results about How to "Fast stretching" patented technology

The invention discloses an adjustable lifting platform used in aerial work for line construction. The adjustable lifting platform comprises an insulation movable base, a lifting support, a primary lifting device, a secondary lifting device and an operation platform, wherein a driving traveling wheel, a universal driven traveling wheel and a brushless hub motor are arranged on the bottom of the insulation movable base, the driving traveling wheel and the universal driven traveling wheel are both connected with the brushless hub motor, the lifting support is in the shape of a reversed U and fixedly arranged at the upper end of the insulation movable base, the primary lifting device is arranged on the inner side of the lifting support, the secondary lifting device is arranged above the primary lifting device, the operation platform is fixedly arranged at the upper end of the secondary lifting device, guardrails are arranged around the operation platform, a tool accommodating table is arranged on the operation platform, and a controller is arranged on the tool accommodating table. The adjustable lifting platform is novel in structural design, convenient to operate, and capable of achieving two-stage lifting and improving line construction efficiency, a constructor can operate the controller alone to achieve lifting, rotation and movement, and using is quite convenient.

The present disclosure discloses a desk-mounted lifting platform comprising a workbench, an upper support and a low support. The workbench is connected to the upper support. A first lifting arm and a second lifting arm are arranged between the upper support and the lower support. The first lifting arm and the second lifting arm are X-shaped and hinged at an intersection thereof. An upper end of the first lifting arm is hinged with the upper support. A lower end of the first lifting arm is slidably fitted on the lower support. A lower end of the second lifting arm is hinged with the lower support. An upper end of the second lifting arm is slidably fitted on the upper support. A gas spring is arranged between the upper support and the lower support. The gas spring is used for providing a lifting force to lift the upper support.

A side-by-side or eccentric sheath-core bicomponent fiber wherein each component comprises a different poly(trimethylene terephthalate) composition and wherein at least one of the compositions comprises styrene polymer dispersed throughout the poly(trimethylene terephthalate), and preparation and use thereof.

The invention discloses a device with multiple sections of telescopic jibs, comprising a fringe connection part and a bolt connection part; the fringe connection part comprises at least two sections of telescopic jibs located in the inside and connected with a travel cable through a turning wheel; the bolt connection part comprises at least one section of telescopic jib located at the outside andconnected with a cylinder pin through a jib pin and a basic jib (211); a cylinder tube (281) of a telescopic cylinder (28) is connected with the outmost section of telescopic jib of the fringe connection part. Therefore, in the extending processing of the telescopic jibs, each section of telescopic jib of the fringe connection part extends synchronously, which increases the extending speed of thedevice with multiple sections of telescopic jibs as well as the working efficiency; at the same time, because the fringe connection part is connected with the bolt connection part by the jib pin (262), and the axial force between the telescopic jibs is transmitted through the jib pin, the stress condition of the telescopic cylinder (28) is improved, the size is reduced properly so as to reduce thecost. The invention further discloses an automobile crane comprising the device with multiple sections of telescopic jibs.

Apparatus and methods for stretching one or more zones of a web are disclosed. Webs including stretched or activated zones are also disclosed. Each of the zones in the web is stretched in the cross-web direction, i.e., the direction transverse to the down-web direction. The stretching it can be performed continuously as the web is advancing through the apparatus in the down-web direction. The stretching can occur in the absence of physical contact with the stretched zone of the web. Strain induced on the stretched zones can be introduced gradually over a stretch distance. The strain may increase at a linear rate. The stretching methods and apparatus may be used to activate an elastic zone or zones within a web.

The invention provides a telescoping arm of a patrol robot. The telescoping arm comprises a drive module, a telescoping arm body and a slide arm, wherein the telescoping arm body comprises a guide rail, a belt and a belt clamp; front and rear ends of the guide rail are respectively provided with a front wheel and a rear wheel; the belt is wound on the front wheel and the rear wheel; the belt clamp clamps the belt; the guide rail is connected with the drive module; and the slide arm is movably mounted on the guide rail and is connected with the belt. The telescoping arm utilizes the drive module to drive the telescoping arm body and the slide arm to move; when the telescoping arm body moves, clamping friction force of the belt clamp on the belt is overcome, so that the belt rotates, and the belt rotates to drive the slide arm to move, and therefore, telescoping of the robot arm is realized.