60results about How to "Effective traction" patented technology

The present invention teaches 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.

A driving system of an electric vehicle and a method for controlling the same are provided. The driving system comprises: a power battery (100); a plurality of first in-wheel motors (200) connected with the power battery (100); a plurality of first motor controllers (300) controlling the plurality of first in-wheel motors (200) respectively; a plurality of second in-wheel motors (400) connected with the power battery (100); a plurality of second motor controllers (500) controlling the plurality of second in-wheel motors (400) respectively; and a vehicle management system controller (600) connected with the plurality of first motor controllers (300) and the plurality of second motor controllers (500) respectively, and configured to control the plurality of first in-wheel motors (200) and the plurality of second in-wheel motors (400) to start or stop during a running of the electric vehicle.

A tire for vehicles offering low rolling resistance wherein the ground-contact surface area is variable as a portion of the tread part can be retracted and/or extended using pneumatic, mechanical or hydraulic force to withdraw from, or come into contact with the road surface before, during or after operation permitting more efficient operation wherein the material used within the tread part that retains contact with the road may generally have a smaller internal friction loss than the material used in conventional tires and the rolling resistance is thereby reduced when the retractable portion of the tread is selectively withdrawn from contact with the road surface furthermore achieving a smaller ground-contact patch footprint. The achieved object of a tire with a lower rolling resistance yields improved fuel consumption efficiency. Improvements in exterior and interior noise levels and a reduced tendency to exhibit hydroplaning action are also attained with a variable groove volume to tread surface-contact ratio. Within one embodiment of the present invention, an automated microcomputer-based tire control system is disclosed useable to command the motion of the moveable tread portion of the said tire in response to various operational scenarios.

A bed-cushion back-support (1) for lumbar recovery having three curved surfaces matching natural physiological curvature matches the natural curvature of the lower backbone of the human body and includes a convex surface (3) for the lumbar vertebrae, and reverse concave surfaces (2,4) for the sacral and lower thoracic vertebrae. The curved bed-surface formed by fixing the bed-cushion back-support on the bed board exactly matches the natural curvature of the backbone of a patient, and provides effective support to the backbone below the midportion of the thoracic vertebrae. With the effect of gravity on the human body, long-term use of the bed-cushion back-support provides long-term traction for an injured backbone, correcting deformities and restoring the functions of the lumbar vertebrae and surrounding tissues.

A traction frame for leg rehabilitation activities comprises a base, a supporting plate, a first spring, a cam, a first positioning device, a second positioning device, a third positioning device, a first traction device, a second traction device and a driving device. The base is provided with a first positioning rod, a second positioning rod, a first buckling rod and a second buckling rod. The supporting plate is provided with a third positioning rod, a fourth positioning rod, a third buckling rod and a fourth buckling rod. The first positioning device comprises a first supporting post, a first positioning plate, a first connecting block and a second positioning plate. The second positioning device comprises a second supporting post, a third positioning plate, a fourth positioning plate, a second connecting block and a second spring. The third positioning device comprises a third supporting post, a fifth positioning plate, a sixth positioning plate and a third connecting block. The first traction device comprises a first traction framework, a first sponge pad, a first supporting rod, a first horizontal rod, a second horizontal rod, a second supporting rod and a first lug. Through the traction frame, health rehabilitation of legs can be rapid.

Embodiments of the invention provide a train control method and system in an emergency state, electronic equipment and a storage medium. The train control method in the emergency state comprises the steps that a level signal of a driver controller is obtained, and whether the level signal is valid or not is determined; state information of a traction code and a brake code are obtained, and whetherthe traction code and the brake code are triggered or not is determined; a train operation mode is judged according to the level signal and the state information of the traction code and the brake code; and when it is judged that the level signal of the driver controller is invalid and only one of the traction code and the brake code is triggered, it is determined that a train is in an emergencystate mode, and the train is controlled according to the emergency state mode. When the driver controller breaks down, traction or braking can be effectively conducted, the probability that a train stops and waits for rescue is reduced, and the running efficiency of the train is improved.

A leather traction device for shoemaking leather is disclosed. The leather traction device comprises a traction plate (2). Two sides of the traction plate (2) are bended upward and then bended horizontally to form pressing plates (3). Connecting plates (1) are disposed between the two pressing plates (3). Positioning plates (4) are connected to two sides of the lower end of the traction plate (2) and are connected to a right-angle bending plate (4) through bolts. The leather traction device is simple in structure and low in cost, can effectively tract leather, and can avoid the problems of laminating and twining during leather levelling.

The invention discloses a multi-directional traction frame for closed reduction of tibial fracture. The multi-directional traction frame comprises a bottom plate having a bearing effect, wherein the bottom plate is fixed to an outside device through four-corner mounting holes; sliding chutes are formed in two ends in the bottom plate, and a sliding block is in sliding connection to the inner partof each sliding chute; a first supporting plate and a second supporting plate are rotatably connected to the upper sides of the two sliding blocks, and the upper side of the first supporting plate andthe upper side of the second supporting plate are rotatably connected through a hinge; a plurality of clamping chutes are formed in a fixed rod; a movable block is in movable and clamped connection to the inner part of each clamping chute; and a first connecting rod, a second connecting rod and a holding plate are sequentially and rotatably connected to each movable block, a rotating button is rotatably connected to the inner part of each holding plate, and a clamping rod is in meshed connection to the center of each rotating button. According to the multi-directional traction frame disclosedby the invention, through discretionary rotation of the first connecting rod and the second connecting rod, and through rotating second screw rods, the multi-directional traction frame can be fixed at discretionary position, and besides, the angle of the holding plates can be in universal regulation, so that the clamping rods can be moved leftwards, rightwards, forwards and backwards, and furthereffective traction for multiple fracture sites can be achieved.

The invention discloses a skin tension reducer. The skin tension reducer comprises a guide frame and two sliding blocks, wherein the two sliding blocks are located at two sides of a skin wound; the extending direction of the guide frame is perpendicular to those of the sliding blocks; a sliding chute extending in the same direction is formed in the guide frame; the upper ends of the sliding blocksare movably installed in the sliding chute; fixing needles penetrating through the skin are installed at the lower ends of the sliding blocks; and an adjusting screw is installed on the guide frame in parallel, is in threaded connection with the sliding blocks and is used for driving the two sliding blocks to get close to or away from each other. The skin at two sides of the wound is fixed through the fixing needles at the lower ends of the two sliding blocks, and then the distance between the two sliding blocks is adjusted through the adjusting screw, so that the traction distance is adjusted; and when a patient with a large wound and multiple skin defects is treated, quantitative, stable, continuous and effective traction can be achieved.

The invention relates to a threading machine. The threading machine comprises a machine body and a driver, wherein the machine body is internally provided with a transmission component; the driver isin transmission connection with the transmission component; the upper end of the machine body is provided with a threading guiding component; the threading guiding component comprises a left synchronous belt and a right synchronous belt; a left driving pulley and a right driving pulley arranged longitudinally are arranged on two sides of the upper end of the machine body respectively; a left driven pulley is arranged on the right side of the left driving pulley at the upper end of the machine body, and a right driven pulley is arranged on the rear side of the right driving pulley at the upperend of the machine body; the synchronous belt is arranged outside the left driving pulley and the left driven pulley; the right synchronous belt is arranged outside the right driving pulley and the right driven pulley; and a gap between the left synchronous belt and the right synchronous belt serves as a threading gap. According to the threading machine, the synchronism of a traction threading lead is high, synchronous traction of a cable is carried out through mutual clamping of the left synchronous belt and the right synchronous belt, in the transmission process, power needs to be output tothe left driving pulley and the right driving pulley, and the left driven pulley, the right driven pulley, an additional left intermediate pulley and an additional right intermediate pulley are drivenby the synchronous belts.

The invention discloses a conveying device of a tufting embroidering machine. The device comprises a conveying part for conveying base blanket cloth to the lower part of the tufting embroidering machine for embroidering, a positioning part which is positioned below the tufting embroidering machine and is used for fixing and tensioning the base blanket cloth, and a collecting part for collecting the embroidered blanket cloth, wherein a discharging end of the conveying part and a feeding end of the collecting part are correspondingly provided with positioning mechanisms for fixing and releasingthe base blanket cloth; correcting mechanisms for correcting skewed base blanket cloth are arranged below the positioning mechanisms. According to the device, the conveying part, the positioning partand the collecting part are matched to realize automatic conveying of the tufting embroidering machine, so that the tufting embroidering efficiency is improved; a plurality of sets of positioning mechanisms are matched to effectively limit the degree of freedom, to be limited during tufting embroidering, of the base blanket cloth, so that the coaxiality in tufting embroidering can be greatly controlled, and the stability of surface tension of the base blanket cloth can also be greatly controlled; and the two sets of correcting mechanisms are matched to correct the skewed base blanket cloth, sothat the embroidering quality is improved.

The invention belongs to the technical field of power transmission. More specially, the invention relates to a pre-twisted safety backup wire clamp for suspension, which comprises a hanging point hardware fitting, an insulator, a socket hanging plate, a power transmission cable, a suspension wire clamp, a backup stranded wire and an end binding wire. The upper end and the lower end of the insulator are provided with integrally formed sockets, the bottom end and the top end of the hanging point hardware fitting are fixedly connected with the sockets, the backup stranded wires are bundled and wound on the power transmission cables at the left side and the right side of the suspension wire clamp, and the end binding wires are used for bundling and winding at the ports of the backup stranded wires, when the power transmission cable suspension wire clamp is worn and broken seriously, the backup stranded wire can effectively pull cables on two sides of a fracture, so that the problem that the power transmission cable and the suspension wire clamp are subjected to long-term vibration, abrasion and the like to cause the outer broken strand at the joint is avoided, and the problem that thesudden drop of the wire due to failure in timely discovery or other problems in inspection causes accidents is solved.

The invention discloses a multifunctional orthopaedic tractor, which comprises rollers, bottom barrels, lifters, a fixing nut, and a connecting belt, the rollers are fixed on the bottoms of the bottom barrels, fasteners are arranged on the right sides of the rollers, the lifters are arranged in the bottom barrels, fixed blocks are arranged on the top and bottom of each lifter, retractable frames are arranged upon the fixed blocks, the middle of each retractable frame is provided with joints, a rotary shaft is fixed at the middle of each retractable frame, fastening bolts are arranged on the rotary shafts, and fixed disks are fixed at the tails of the rotary shafts. The structure of the multifunctional orthopaedic tractor disclosed by the invention is simple, and the appearance is attractive; the design of the lifters can easily adjust the heights of a bed board and a lifting rod, so that a patient can be conveniently treated; the design of movable blocks can effectively adjust the force of traction; acting force therein can be effectively cushioned; and the whole tractor is easy to operate, and has diversified functions.

Fabric Tube Propulsion Drive is a system for propelling medical devices through hollow body organs and within body cavities without causing trauma to the body surfaces upon which it operates. Fabric Tube Propulsion Drive consists of a hollow tube surrounded by a continuous loop of elastic fabric or mesh. Within the tube is a motor drive system that moves the fabric through the lumen of the tube such that the fabric on the outside of the tube can continuously interface with the body part through which the Fabric Tube Propulsion Drive is operating, and thereby drive the whole device through the body cavity or over the surface in question. Furthermore, the motor drive system can selectively apply tension to the fabric over specific areas within the tube to cause flexion of the whole tube.

The invention discloses a plastic honeycomb building formwork production line. The plastic honeycomb building formwork production line comprises a first injection molding machine and a second injection molding machine. A lower formwork is formed on the first injection molding machine in an injection molding manner. An upper formwork is formed on the second injection molding machine in an injection molding manner. The discharging end of the first injection molding machine is connected with a first molding machine. The discharging end of the first molding machine is connected with a first forming machine. The discharging end of the first forming machine is connected with a second molding machine. The second molding machine is connected with the discharging end of the second injection molding machine. The discharging end of the second molding machine is connected with a mold combining machine. The discharging end of the mold combining machine is connected with the second forming machine. The discharging end of the second forming machine is connected with a third forming machine. The discharging end of the third forming machine is connected with an extrusion forming machine. A conveying roller is arranged at the discharging end of the extrusion forming machine. A deviation correcting material pressing device is arranged at the discharging end of the conveying roller, and the discharging end of the deviation correcting material pressing device is connected with a cutter. A combined type production assembly line is adopted, injection molding, forming, mold combining, cutting and other procedures are carried out on a double-layer plastic building formwork in the production and machining process, and the plastic formwork needed for construction is produced.

The roller device of the auxiliary stress mechanism comprises a vertical plate and a roller, a front-back through connecting hole is formed in the upper portion of the vertical plate, an upper beam body protruding backwards is arranged on the upper middle portion of the rear side plate face of the vertical plate and below the connecting hole, and a guide body protruding backwards is arranged on the lower portion of the rear side plate face of the vertical plate. A plurality of roller mounting holes are formed in the guide body, the axes of the roller mounting holes horizontally extend front and back, the top and the bottom of each roller mounting hole are respectively provided with a top notch and a bottom notch which are through front and back, one roller is arranged in each roller mounting hole, the rollers are mounted on the vertical plate, and gaps are kept between the rollers and the roller mounting holes; the highest point of the idler wheel is higher than the top face of the guiding body, and the upper beam body, the idler wheel and the vertical plate part located between the upper beam body and the guiding body define a three-face surrounding structure with a backward opening. The device is used in an auxiliary stress mechanism, and is used for applying constant downward thrust to a walking system, so that the walking mechanism is always kept in a normal meshing state, and effective traction force is provided.

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 method for assembling and welding a large skirt supporting structure spherical tank. According to the method for assembling and welding the large skirt supporting structure spherical tank, a tubular triangular support, a stay cable, a clamping ring and an adjustable elastic joint are utilized for carrying out effect traction and adjustment on sphere sheets below an equatorial zone in the assembling process. For a lower half sphere of the large skirt supporting structure spherical tank, according to the assembling and welding method, external supporting hoisting is changed into internal cable-stayed hoisting, and a hoisting tool is light and handy, diversified in combination form and convenient to operate. The method for assembling and welding the large skirt supporting structure spherical tank is a new method for carrying out assembling and welding at the same time, the problem of overhung spherical sheet deformation is effectively solved, and the assembling and welding efficiency of the large spherical tank is improved.