60results about How to "Effective traction" patented technology

An energy generator comprising a generally flat and partially flexible traffic surface on which pedestrians and traffic may pass. Underneath the traffic surface, a plurality of dynamo cells each have a dynamo therein, each dynamo having two electricity generating elements (magnets, coils, etc) and an operative electrical connection to an electrical load such as a battery, capacitor, light, an electrical network or the like. A first electrical generating element in each dynamo may be disposed so that it moves downward when weight from traffic is applied to the traffic surface, while a second electricity generating element remains stationary, supported by the bottom surface of the energy generator. A spring and bottom support may urge the first (moving) element back upwards when the imposed force is released.

An articulated dozer with a four point independent suspension system between a chassis and two support frames is described. The chassis includes a front chassis portion and a rear chassis portion connected by an articulation joint. The vehicle is compactly arrange so that the chassis and the two support frames fit between the track systems supporting and propelling the vehicle. Additionally, the engine is arranged near the articulation joint and lower than the top of the track systems for improved view and visibility. The cab is arranged over the track systems at the front of the vehicle for an optimal view of the blade.

The invention is used to improve the technical problem of poor safety of the existing fragile front cover of the missile, and provides a fragile front cover of the missile and a preparation method thereof; wherein the structure includes: a front cover body provided with a weakening groove, and a mooring mechanism The weakening groove is set along the radial and / or latitudinal direction of the front cover body, and the front cover body is divided into multiple regions to be broken by the weakening groove; the mooring mechanism is a rope with fixed ends at both ends. The method comprises the following steps: making an upper flange ring and a lower flange ring; manufacturing a reinforcement layer and a front cover body; setting weakening grooves in the radial direction and / or latitudinal direction of the front cover body; grinding the upper end surface of the front cover body After spraying or brushing heat-resistant paint; making a gasket whose shape matches the shape of the pressing surface between the upper flange ring and the lower flange ring; making the seal between the lower flange ring and the outer wall of the missile launch tube launch port sealing strip. The invention can simultaneously meet the use requirements of both bursting and bursting, and it is not easy to cause fragments to splash when the front cover is broken.

The invention relates to the field of inverted arch pouring, and particularly relates to a traction fixing method for an inverted arch formwork. The traction fixing method comprises the following steps that firstly, supporting legs at the two ends of a trestle are supported on the ground on the two sides of a to-be-poured inverted arch correspondingly, a liftable formwork traction part is hung below the trestle through reverse hanging wheels, and an end formwork is arranged on a primary support of the to-be-poured inverted arch; secondly, grouting is conducted in the end formwork, and concreteis cured to reach the design strength; thirdly, the trestle is made to move above the formwork traction part in the advancing direction of a tunnel through a driving part and supporting wheels arranged between the trestle and the formwork traction part, and the trestle is lowered through the formwork traction part; and fourthly, the formwork traction part is made to move in the advancing direction of the tunnel through the driving part. According to the scheme, through mutual cooperation of a trestle body and the formwork traction part, relative movement of the trestle body and the formwork traction part is effectively achieved, and thus the end formwork is effectively pulled and fixed; and construction interference between the procedures can be effectively reduced, the construction progress is accelerated, the quality is improved, and the cost is reduced.

The invention discloses a cervical vertebra three-dimensional controllable head loop waistcoat drawing reset device. The cervical vertebra three-dimensional controllable head loop waistcoat drawing reset device includes a head loop which sleeves a head of a human body; two sides of the head loop are each connected to an adjustable support; the two adjustable supports are connected to a support waistcoat; and the support waistcoat includes a front sheet and a back sheet which are arranged oppositely and can be put on a front chest and a back of the human body respectively to play a support role. Each adjustable support includes: two longitudinal rods which are arranged in parallel, one ends of the two longitudinal rods are connected to the front sheet and the back sheet of the support waistcoat respectively, and the other ends of the two longitudinal rods are connected through a horizontal rod; the horizontal rod is connected to the head loop through a support member so as to adjust a position of the head loop at a coronal view; one of the longitudinal rods is connected to the head loop through a push rod so as to adjust the position of the head loop at an axial view and a sagittal view. The invention further discloses a use method thereof. The cervical vertebra three-dimensional controllable head loop waistcoat drawing reset device can solve the problem that the conventional head loop waistcoat drawing reset device cannot effectively draw a patient with sagittal view malformation, coronal view malformation, axial view malformation or rotation malformation.