112 results about "Tension lines" patented technology

A long articulating steerable clip applier affixed to a user-operated handle. A surgical jaw assembly is attached to the other end of the clip applier. The clip applier is composed of articulating phalanges that are connected end to end by pivoting links and capable of angulations relative to one another when subjected to a tensile force. Each phalange has opposing s-shaped exterior grooves that form two continuous spiral-shaped channels for holding tension wires once the phalanges are assembled. Multiple tension wires are attached to opposite ends of adjacent phalanges. When each wire is pulled, this tensile force causes the phalanges to pivot at equivalent angles with each other. As each individual phalange pivots by an equivalent angle, the sum of these angles causes the free end of the clip applier to pivot by a large angle or a cascading actuation effect.

The invention provides an intelligent circulation anti-icing method which can be applied to two to twelve and more split lead power transmission lines to transmit current. The method can be applied to any icing tension line section of a power transmission line and can accurately judge whether the icing prevention needs to be started or not automatically according to the line icing condition to realize the automation and the intellectualization of the whole anti-icing process. The method comprises the following steps of: mounting a control device; detecting the environmental parameter and judging whether the current environment needs to start the icing prevention or not by the control device; grouping sub-leads of the split lead; and when the anti-icing operation needs to be started, sequentially converging currents of all split leads at the transmitting end of the anti-icing section on each group of sub-leads according to preset interval time by the control device. The invention increases the transmission current of the sub-leads, achieves the aim of icing prevention by joule heat and can realize the automation and the intellectualization of the local or whole anti-icing process without adding an ice thawing power supply and the icing detection on the line and damage the icing condition before the generation of ice.

The invention relates to an on-load opened and segmented operating method of a 10kV line. The method comprises the following steps of: promoting leads, mounting a tension device, changing straight lines into tension lines and lap jointing the leads. The method has clear steps, easy operation, appropriate insulation and isolation measures in the operation process and high safety factor, thereby solving the problem of carrying out opened and segmented operations by powering down in power grid reconstruction and greatly improving the power supply reliability. The method has great practical values on enlarging the live working field and improving the power supply reliability at the present with the distribution line technology advanced and developed day by day.

A method for measuring video deflection of tension line includes erecting fixed bolt and fixed pulley on piers at two sides of bridge, connecting two ends of tension line separately to said bolt and weight to make tension line be tightened, erecting video camera at position to be measured on bridge to let shooting tube right-point to tension line, moving video camera up and down to vary position of fixed light point of laser on tension line in image of video camera, collecting and calculating position of light point in image for obtaining deflection of bridge. The device for realizing said method is also disclosed.

A zipline braking system comprising a zipline cable and a destination supporting member; a rider carrier coupled to the zipline cable for movement towards the destination supporting member, such movement generating kinetic energy; a damper having a posterior end and an anterior end and connected to the destination supporting member at the posterior end; a tension line; a stopping member coupled to the zipline cable and the tension line; and the tension line for transferring the kinetic energy to the damper upon the rider carrier engaging the stopping member in movement to the destination supporting member.

A system for relieving back pressure comprising: a waist belt affixed to a reclining individual; a plurality of tension lines extending axial through the legs of the individual; and a mechanism to attach the tension lines so as to provide positive tension.

A tension wire pay-off device for a wire rope, the device includes a wire pay-off reel and a wire take-up reel, and wire ropes wound on the pay-off reel and the wire take-up reel respectively, wherein the wire take-up reel winds the wire rope at a certain speed On the driving wheel on it, a primary tension is produced on the wire rope after the pay-off reel, and a secondary tension is generated on the wire rope before the take-up reel; the axle of the pay-off reel is provided with a passing torque Or a primary pay-off power mechanism whose speed controls the primary tension of the wire rope; a secondary pay-off wheel group capable of controlling the secondary tension of the wire rope through the output torque or speed is coiled on the wire rope before the pay-off reel; It effectively solves the problems of large tension and unstable transmission in the wire rope transmission process in the pay-off device. It has the characteristics of simple structure, convenient installation and control, and can make the wire rope transmission run safely under high precision and constant tension state.

A surgical retractor device includes a frame and at least one retracting member configured for being secured to the collapsible frame. The retracting member is formed from a spring-biased rotatable member, a tension line secured at a proximal end to the spring-biased rotatable member, and a tissue securing member disposed at a distal end of the tension line. In certain embodiments, the surgical retractor may be collapsible and delivered laparoscopically to the resection site.

The invention relates to disposable diaper having absorbent cores comprising superabsorbent polymer particles which are immobilized by adhesive. The absorbent core is attached to the backsheet of the disposable diaper only in certain attachment zones to reduce see-through and the formation of tension lines on the backsheet.

The invention provides a super-elastic tension structure of an octahedral unit truss. The super-elastic tension structure is formed by an octahedron variable geometry truss and super-elastic tension lines; the octahedron variable geometry truss is formed by one or more than one octahedral basic unit; every octahedral basic unit is formed by twelve truss extensible rods of equal length and six ball joints; every two adjacent octahedral basic units share one surface; the three ball joints of every triangle formed on the surface of the corresponding octahedral basic unit are connected with each other through three of the super-elastic tension lines, wherein the three super-elastic tension lines are gathered at a central point of the triangle and connected with a plane hook; every octahedral basic unit is located in the compression state through the super-elastic tension lines, only the pressure is applied to the truss rods, and the tension is not applied to the truss rods. According to the super-elastic tension structure of the octahedral unit truss, the structure is simple, the machining is convenient, a tensioning device is easy to install, the node size is small, the force transfer path is clear, and the super-elastic tension structure can be applied to variable geometry truss structures of the field such as buildings, bridges and the aerospace.

The invention relates to the field of power monitoring, in particular to an ultrahigh-tension line fault detection and location method and a fault detection and location device. The method comprises the following steps: sampling the current phase information at the two ends of a high-tension line to be detected at the same time respectively to obtain phi1 and phi2; calculating difference between phi1 and phi2 to obtain the difference psi=phi1-phi2; setting an alarm value, wherein when psi is greater than the alarm value, the high-tension line to be detected has fault; and after judging that the high-tension line to be detected has fault, sending fault information to the outside. The fault detection and location device comprises a fault detection module, a fault analysis module and a fault signal output module, wherein the fault detection module comprises a local end measurer as well as an opposite end measurer; the local end measurer and the opposite end measurer are connected to the fault analysis module respectively; and the fault analysis module is connected with the fault signal output module. According to the invention, the fault detection for the high-tension line is simple, accurate, quick and the like, the workload of line searching can be effectively reduced, and the fault repairing time can be shortened.

In order to solve the difficulty of winding long objects such as wire stably with a simple structure. The wire 1 is sent out at a predetermined speed by the roller 3, the wire reel 8 is rotated by the motor 9, and the wire 1 is wound on the wire reel 8. Set regulator and tension detector 7. Set up the servo loop to keep the tension constant. Determine the variation range of the tension of the thread, and reduce the time constant of the servo loop when the variation of the tension becomes large.

The invention relates to a bridge performance state monitoring system, method and device. The bridge performance state monitoring system comprises: a displacement sensor which is used for being fixedto a measurement point of a measured bridge, enabling a contact to be perpendicular to the horizon and downward, and measuring the downwarping displacement variation of the measurement point relativeto a measurement reference point; a tension line with one end that is fixedly connected with a pier on one side of the measured bridge, and the other end of the tension line is movably connected to apier on the other side of the measured bridge and straightened for providing a measurement reference point of the displacement sensor; a data acquisition module that is electrically connected with thedisplacement sensor and is used for acquiring the downwarping displacement variation; and monitoring equipment that is in communication connection with the data acquisition module, and is used for remotely receiving the downwarping displacement variation, calculating to obtain dynamic deflection data and a live load impact coefficient of the measured bridge according to the downwarping displacement variation, and determining the performance state of the measured bridge according to the dynamic deflection data and the live load impact coefficient. By using the method and system, measurement efficiency is greatly improved.

A zipline braking system comprising a zipline cable and a destination supporting member; a rider carrier coupled to the zipline cable for movement towards the destination supporting member, such movement generating kinetic energy; a damper having a posterior end and an anterior end and connected to the destination supporting member at the posterior end; a tension line; a connection member coupled to the zipline cable and configured to engage the rider carrier; a stopping member coupled to the zipline cable and the tension line; and the tension line for transferring the kinetic energy to the damper upon the connection member engaging the stopping member in movement to the destination supporting member.

Deployable structures and methods for assembling the same including a structural mechanism defining a columnar space comprising a plurality of structural members, a plurality of couplings and a plurality of tension lines, wherein each of the couplings interconnects three of the structural members and each of the tension lines interconnects one of the couplings and one of the structural members. Each of the tension lines interconnects one of the couplings and an end of one of the structural members not interconnected with one of the couplings. A columnar space, devoid of any structural members, is centrally located within the structural mechanism. Each of the couplings interconnects two of three structural members such that they are substantially aligned along their respective longitudinal axes and the third of the three structural members is interconnected such that its longitudinal axis is substantially perpendicular to the longitudinal axes of the other two structural members.

The invention discloses a harmonic reducer torsion experimental test device. The harmonic reducer torsion experimental test device comprises a harmonic reducer; the harmonic reducer torsion experimental test device further comprises a first static loading device, a second static loading device, a test bed, an output end torsion arm, a first vibration table, a second vibration table, a first excitation rod, a second excitation rod, a laser displacement sensor, a harmonic reducer fixing clamp, a power amplifier, a data acquisition and analysis instrument, a tension line, a weight, a force sensor, an input end fixing connecting piece and an input end fixing cover. According to the harmonic reducer torsion experimental test device, two-side force loading is adopted in the form of a couple, sothat the measuring system only generates a pure rotating effect; during static torsion testing, the weight is put into a weight disc; gravity is converted into tension through the static loading devices, so that a static torsion load can be applied to the output end of the harmonic reducer; during dynamic torsion testing, a circuit is connected, the system is started, parameters are set, a voltageis regulated, the vibration tables are started, and a dynamic torsion load can be applied to the output end of the harmonic reducer.

The invention provides a novel control method for a high aspect-ratio flying wing solar-powered airplane. Through a steering engine, the tension line direction of a vector motor is controlled, the rotating speed of the motor is controlled and the deflection of a control surface is adjusted, so that the flying state of the airplane is controlled; and complicated control system and sensing system are simplified, so as to achieve the function of controlling the airplane. According to the control method, stable control on the high aspect-ratio flying wing solar-powered airplane can be finished; the control system can be simplified; the structure weight can be reduced; the working load of the airplane is improved; and the control reliability of the airplane is increased.

The invention discloses a dual-floating-body four-stand-column semi-semi-submersible fan foundation which comprises two long-strip-shaped floating bodies. Four stand columns are vertically arranged onthe floating bodies in two rows, one ends of at least four braced chain lines are correspondingly connected to the four stand columns, the other ends of the braced chain lines are connected to a seabed respectively, the four stand columns are connected with a platform separately, the platform is of a cylindrical structure and is arranged at the top end, a buoyancy tank and a ballast tank are symmetrically arranged below the platform, heaving plates are arranged among the buoyancy tank, the ballast tank and the platform in parallel at intervals, circular installing through holes are formed inthe heaving plates, the stand columns support the ballast tank, the platform and the buoyancy tank through the heaving plates respectively, one ends of tension lines are connected with the bottom ballast tank, and the other ends extend in the direction parallel to a gravity line to be connected to a seabed. The structural stability of the foundation is improved, and the foundation is simple and practical, and is not likely to be damaged.

The device (20) has a tie rod (21) comprising two anchor bodies (22, 23) arranged at a machine frame, and a traction element (24) for receiving tensile force between the anchor bodies, where the traction element is stretchable along a tension line (25) of the tie rod (21). One of the anchor bodies (22,23) is provided with a reversing device (26) for reversing the direction of the traction element (24).

A method and apparatus for transferring the ends of power lines between first and second supports including a frame having a pair of independently operable hoist mechanisms which each include a tension line with an attachment element at the end thereof, with the drums being rotatable by respective ratchet mechanisms for enabling the transfer of the end of a tension line from one support location to a different support location.

A droneboarding system is disclosed. The droneboarding system includes an unmanned aerial vehicle (drone) for pulling a droneboarder riding a board over a surface, a harness, a tow handle and a plurality of tension lines. Each tension line is attached to the drone and to either the tow handle or the harness. The tension lines are configured in a manner that provides mechanical control of the flight path of the drone. A remote power supply is adapted to be carried by the droneboarder. One of the tension line carries an electrical conductor from the remote power supply to the drone. The electrical conductor provides electrical power from the remote power supply to the drone.

A method for measuring video deflection of tension line includes erecting fixed bolt and fixed pulley on piers at two sides of bridge, connecting two ends of tension line separately to said bolt and weight to make tension line be tightened, erecting video camera at position to be measured on bridge to let shooting tube right-point to tension line, moving video camera up and down to vary position of fixed light point of laser on tension line in image of video camera, collecting and calculating position of light point in image for obtaining deflection of bridge. The device for realizing said method is also disclosed.

A shower apparatus includes a ceiling mounting assembly and a plurality of tensioning lines; and a framework and arrangement of sprayers suspended thereby. The ceiling mounting assembly includes a spool in engagement with the tension lines such that winding of the spool in a first rotational direction results retraction of the tensioning lines into the ceiling mounting assembly and raising of the suspended assembly, and unwinding of the spool in a second, opposite rotational direction results in extension of the tensioning lines out of the ceiling mounting assembly and lowering of the suspended assembly. The ceiling mounting assembly further includes a spring that biases rotation of the spool; and the ceiling mounting assembly defines an opening through which access to the exposed end of the spool is provided for winding and unwinding of the spool by a person standing under the ceiling mounting assembly.

A hammock shell system may comprise a hammock, a tension line, and a shell. The tension line may be secured to run above the hammock, and along the length of the hammock. The shell may be a tubular piece of fabric with openings at either end, and shaped to generally hang over the tension line, and fit around and envelop the hammock. The shell may drape over the edges of the two sides of the hammock and hang under the bottom of the hammock. When the two openings at the ends of the shell are closed, a layer of dead air is created between the shell and the bottom of the hammock. This dead air space insulates the bottom of the hammock. A shape adjustment system, comprising cinch cords on the inside of the shell, allows for tightening or loosening to adjust the shape and volume of the dead air space trapped between the bottom of the hammock and the shell. Such shape adjustment allows for customizing insulation properties and the temperature of the hammock. The shell may also include insulating materials.

In a tension device for a nonskid chain, a winding reel is supported, so that it can rotate about its axis inside the housing and is prestressed in the winding direction and has a gear rim with teeth arranged along its circumference. A tension line that can be retracted into the housing can be connected to the winding reel, such that a ratchet in a first position (A) blocks a rotational movement of the winding reel in the tension direction by engagement of the ratchet in the teeth. Areas free of teeth on the circumference of the gear rim of the winding reel alternate with areas with teeth.