50results about How to "Taxiing fast" patented technology

The invention discloses a traversing type double-trolley system. The system comprises an upper trolley and a lower trolley, wherein the lower trolley comprises a first walking mechanism and a second walking mechanism mounted on guide rails at two sides of the upper trolley in a walking manner, a rigid frame for connecting the first walking mechanism and the second walking mechanism, and a sling connected below the rigid frame; the rigid frame is provided with a structure space with the cavity size greater than the outer wall size of the upper trolley so as to allow the upper trolley to pass, and the lower trolley meets the condition that the stabilizing moment Sigma Ms of the lower trolley is greater than capsizing moment Sigma Mo; the first walking mechanism is connected with the second walking mechanism through the rigid frame; the structure space size of the rigid frame is greater than the outer wall size of the upper trolley, so that the upper trolley sling carrying a tank can directly pass through the structure space without rotating; under the condition that the stabilizing moment Sigma Ms caused by the gravity of the lower trolley is greater than the capsizing moment Sigma Mo caused by horizontal inertia force of the lower trolley, the capsizing moment Sigma Mo caused by wind load or other reasons is overcome under the effect of the stabilizing moment of the lower trolley, so that the lower trolley always maintains steady in the operational process.

The invention discloses a tackle with a crutch and aims to solve the problems that a conventional exercise tackle demands more on skill when in use, is inconvenient to operate, and causes high probability of falling injury when used by a person who has difficulties in walking or disabled in lower limbs or a single foot. The tackle comprises an underframe, wherein two front wheels and two rear wheels are mounted on the underframe through wheel mounting bases; a steering shaft sleeve is fixedly connected with the underframe and a steering shaft; the upper end of the steering shaft is connected with a handle; the lower end of the steering shaft is connected with a steering lever; the steering lever is hinged to a steering crossbeam; the two ends of the steering crossbeam are both hinged to steering connecting rods, and the two steering connecting rods are fixedly connected with the wheel mounting racks of the two front wheels respectively; two longerons are respectively connected with a left strut and a right strut which are both foldable; a U-shaped crutch supporting frame is connected between the upper ends of the left strut and the right strut; two ends of the crutch supporting frame are fixedly connected with connecting frames; an underarm crutch pad is connected to the inner side of each connecting frame; an elbow supporting pad is connected to the outer side of each connecting frame; boatstretchers and two rest boards are connected to the underframe.

The invention discloses a portable surfing type skateboard which comprises a front framework, a rear framework, a bolt piece, a rotating wheel fork, a sliding plate wheel, pedals, tension springs and blank caps, wherein the front framework and the rear framework are cranks which are warped upwards by bending one ends of sectional materials; first threaded holes are respectively formed on the front crank and the rear crank; short shafts are respectively connected on the bottom surfaces of the front framework and the rear framework; the bolt piece is connected between the front framework and the rear framework; a bearing is arranged at the top of the rotating wheel fork, and the rotating wheel fork is connected to the front crank and the rear crank through wheel fork bolts; the sliding plate wheel is connected to the rotating wheel fork through an interlock bolt; each pedal is composed of a base plate and a panel; bearings are respectively embedded in upper and lower counter bores of the base plate; anti-slip strips are additionally connected on longitudinal and transverse reinforcing ribs of the base plate; a strip-shaped hole is formed on the panel; the base plate is arranged on the short shafts; the panel covers on the base plate; the tension spring is connected in the front of the front pedal and is then connected to the front framework; the tension spring is connected at the back of the rear pedal and is then connected to the rear framework; and the blank caps are respectively sleeved at the front end of the front framework and the rear end of the rear framework.

The invention relates to a walking-type hanging basket for transmission line, which comprises a basket base frame formed by the assembly of a cross beam at the basket lower part, a longitudinal beam at the basket lower part and a three-way joint at the basket lower part, a basket top frame formed by the assembly of a cross beam at the basket upper part, a longitudinal beam at the basket upper part and a three-way joint at the basket upper part, a basket upright column is provided with a basket thin two-way joint, the basket thin two-way joint is connected to a cross beam at the basket middle part, the cross beam at the basket middle part on one side and the cross beam at the basket upper part are provided with a driving wheel support, and the driving wheel support is provided with a driving wheel device and an auxiliary tensioning wheel support, the auxiliary tensioning wheel support is provided with an auxiliary tensioning wheel device; the cross beam at the basket middle part on the other side and the cross beam at the basket upper part are provided with a driven wheel support, and the driven wheel support is provided with a driven wheel device. The invention adopts electric power drive and has providing quick sliding speed, thereby shortening construction period, improving efficiency, enabling operators to construct in standing manner.

The invention relates to a foldable surfing type sliding plate. The sliding plate comprises a front framework, a back framework, folding pieces, a rotating wheel fork, skateboard wheel, pedals, a tension spring and boring covers, wherein the front framework and the back framework are bent arms which are made of profiles, one end of each crank arm is bent to be upturned, first thread holes are respectively formed in the front bent arm and the back bent arm, the bottom surfaces of the front framework and the back framework are respectively connected with short shafts, and the folding pieces are connected between the front framework and the back framework; a bearing is arranged at the top of the rotating wheel fork which is connected with the front bent arm and the back bent arm by wheel fork bolts; the skateboard wheel is connected with the rotating wheel fork by interlocking bolts; the pedals consist of a bottom plate and a face plate, wherein bearings are respectively inlaid into an upper sunk hole and a lower sunk hole formed in the bottom plate, and slide preventing strips are also connected to strengthening ribs in the longitudinal and horizontal directions of the bottom plate; strip-shaped holes are formed in the face plate, the bottom plate is sleeved on the short shafts, the face plate covers on the bottom plate, the front part of the front pedal is connected with the tension spring, the tension spring is connected to the front framework, the back part of the back pedal is connected with the tension spring, the tension spring is connected to the back framework, and the boring covers are respectively sleeved at the front end of front framework and the back end of the back framework.