47results about How to "Increase rotational friction" patented technology

Embodiments of the invention relate to electrophysiology catheters and methods of using the same. According to one embodiment, the catheter includes a braided conductive member at its distal end that can be radially expanded, for example using a mandrel slidably disposed within a shaft of the catheter. According to another embodiment, the catheter comprises a tip portion constructed of an elastomeric material. According to a further embodiment, the catheter includes a braided conductive member wherein a thermocouple is formed using one filament of the braided conductive member and one thermocouple wire. Other embodiments of the invention relate to a handle for use with a catheter and methods of using the same. According to one embodiment, the handle comprises a thumbwheel coupled to a housing, a spring disposed within the housing in contact with the thumbwheel, and means for increasing compression of the spring to increase rotational friction on the thumbwheel.

A power tool for fastening objects has a housing with a non-rotatable element, a power drive in the housing and provided with a rotatable driving element, and a fastener part including a bolt having a thread and an axis and introducable into parts forming an object, a nut screwable on the bolt and cooperating with the rotatable driving element, and a washer to be applied between the nut and an object and cooperating with the non-rotatable element, the washer having an axis and being provided with a first bearing face surface located at one axial side and adapted to cooperate with the nut, a second bearing face surface located at an opposite axial side and adapted to cooperate with the object, and at least one third turning resistant surface adapted to cooperate with the thread of the bolt, so that when driving element turns the nut with a given active force in one direction and the washer is held stationarily applied by the non-rotatable element of the housing, the nut turns to tighten or loosen the bolt, and the washer remains rotation stationary while the bolt elongates or relaxes in an axial direction.

A fishing reel including a housing having a central hub and a main shaft having a proximal end and a distal end, the main shaft being non-rotatably fixed to the central hub at its proximal end. A spool having a central recess is releasably secured to the main shaft distal end and a one-way clutch having a central bore is non-rotatably received in the central recess. The reel also includes a drag assembly with a drag housing having a drag surface and a central aperture, the drag housing being fixed to the central hub of the housing such that a drag cavity is formed therebetween. A sleeve extends along the main shaft and has a first portion received in the central bore of the one-way clutch and a second portion extending into the drag cavity. A first drag washer is disposed in the drag cavity and non-rotatably fixed to the second portion of the sleeve and a drag knob is rotatably secured to the housing. Rotation of the drag knob in a first direction urges the drag washer axially along the sleeve toward the drag surface and increases rotational frictional force on the first drag washer. Rotation of the drag knob in a second direction reduces rotational frictional force exerted on said first drag washer.

The invention discloses a rotary shaft device and a folding electronic device with same. The rotary shaft device comprises a bearing part, a first rotary connector, a second rotary connector, a friction mechanism and a holding mechanism, wherein the first rotary connector comprises a first rotary shaft and a first bracket, the first rotary shaft is pivotally connected to the bearing part, the first bracket is fixedly connected to the first rotary shaft; the second rotary connector comprises a second rotary shaft and a second bracket, wherein the second rotary shaft is pivotally connected to the bearing part and opposite to the first rotary shaft; the second bracket is fixedly connected to the second rotary shaft; the friction mechanism is used for providing friction force for rotating the first rotary shaft and the second rotary shaft; the holding mechanism can be used for keeping the first bracket and the second bracket in an open state. The rotary shaft device has relatively great rotary friction force, good rotary connecting effects, long service life, and stability and firmness in connection; the friction force is almost not damped after long-term use.

The invention belongs to the technical field of intelligent driving automobile parts, and particularly relates to an intelligent driving automobile radar installation device with multi-application scenarios. The intelligent driving automobile radar installation device with the multi-application scenarios comprises a fixed seat. A supporting barrel is arranged at the upper end of the fixed seat, and supporting rods are slidably connected with the inner part of the supporting barrel in an inserting mode; rotating discs are arranged at the top ends of the supporting rods, and arc-shaped splinesare rotatably arranged on the rotating discs; fixing plates are arranged on the arc-shaped splines, internal threads are arranged on the supporting barrels, and first sliding grooves are formed in thesupporting barrels; adjusting units are arranged in the supporting barrels, and the adjusting units are not only used for the height adjustment of radar detection, but for left-right adjustment, thephenomenon that the detection range of the height and angle of a radar device is influenced due to the fact that an automobile body go downside when an automobile is empty loaded or full loaded is avoided, the technical problem that the radar detection angle and height can not be adjusted according to needs of the scenarios is efficiently solved; and automatic adjustment of the radar device can berealized, and thus the adjusting height and angle of the radar can be more precise and more stable.

The invention discloses a flow dividing rotary disc for cleaning equipment of net clothing in deep water net cage and a graded rotation speed regulating method thereof. From the first step to the third step, the flow dividing rotary disc can be stably auto-rotated under rotation speed being close to stable rotation speed omega of a predetermined target, the phenomenon that graded rotation speed control of the flow dividing rotary disc can be achieved more accurately under the condition of constant high-pressure water-supply water pressure and no need of additional auxiliary speed regulation mechanism is realized, and thus, appropriate target stable rotation speed omega can be set based on net cage culturing fouling organism attachment types of the net clothing required to be cleaned in the deep water net cage, the best rotation speed of the flow dividing rotary disc is configured when the net clothing is cleaned, and improvement of the cleaning efficiency of the net clothing in the deep water net cage and the removal ratios of the fouling organisms is realized. According to the flow dividing rotary disc disclosed by the invention, the flow dividing rotary disc is stably auto-rotated under rotation speed being close to stable rotation speed omega of the predetermined target while the rotation smoothness of the flow dividing rotary disc can be ensured at the same time, and the cleaning efficiency of the net clothing in the deep water net cage and the removal ratios of the fouling organisms are improved.

The invention discloses a wheel component. The wheel component comprises an integrated hub, a tire bead movable stop block, an inflating valve and a tire, wherein the tire bead movable stop block comprises a rotating shaft and a baffle plate structure, can move in the diameter direction of the integrated hub and can be mounted in a round hole structure in the side wall of a rim groove of the integrated hub in a sliding and/or rotating manner; the baffle plate structure is a cam structure and can rotate around the axis of the rotating shaft; and the tire is not provided with a tire tube. During tire installation, the tire bead movable stop block is not higher than a protruding peak of a hub rim bead seat, so that successful installation of the tire is guaranteed; after the tire bead is mounted on the bead seat of the integrated hub, the tire bead movable stop block slides and/or rotates to enable the baffle plate structure to be higher than the protruding peak of the hub rim bead seat so as to prevent the tire bead from sliding into the groove of the integrated hub; and the wheel component can prevent traffic accidents caused by disengagement of the tire and the hub, so that the driving security is improved.

The invention relates to the technical field of water faucet auxiliary maintenance, and discloses a device for removing scale on the inner side wall of a direct drinking water faucet port. The devicecomprises a handle. The left end face of the handle is fixedly connected with a positioning round block through bolts. The lower surface of the positioning round block is fixedly connected with a micro motor through bolts. An output shaft of the micro motor penetrates the lower surface of the positioning round block and is fixedly connected with a round connection box. A supporting ventilation thin pipe is welded to the position of a ventilation opening in the middle position of the top of the round connection box. The side face of the tail end of the supporting ventilation thin pipe is fixedly connected with a semispherical expansion opening plate through a connection rod. An emulsion sleeve is connected to the semispherical expansion opening plate and the supporting ventilation thin pipein a sleeving manner. The bottom of the emulsion sleeve is connected with the top surface of the round connection box in a glued manner. According to the device for removing the scale on the inner side wall of the direct drinking water faucet port, the inner side wall of the faucet port is extruded through a scale removal brush, the friction pressure between the scale removal brush and the innerside wall of the faucet is increased, and therefore the aim of conducting friction scrubbing on the inner side wall of the faucet port is achieved.

The invention provides a camera fixing bracket which is simple to install and convenient to disassemble and repair. The camera fixing bracket includes a mounting seat and a connecting rod, one end ofthe connecting rod is connected to the mounting seat through a ball joint, the other end of the connecting rod is provided with a thread connecting rod, the diameter of the thread connecting rod is less than the diameter of the connecting rod, the connecting portion of the connecting rod and the threaded connecting rod forms an annular shoulder, and the annular shoulder is provided with an elasticcushion. When the bracket is used, a camera is installed by using the threaded connecting rod, when the camera is screwed tightly until the back of the camera is to be pressed against the annular shoulder, the camera contacts and presses the elastic cushion, the elastic cushion applies force to the back of the camera, the camera is automatically clamped so that the camera can be quickly connectedto the connecting rod, when the repair is required, the camera can be removed by rotating the camera in the opposite direction without removing the entire fixing bracket, and the repairing process isquicker and more convenient.

The invention relates to the technical field of multi-shaft machining centers, and discloses a main shaft automatic lubricating device capable of avoiding increase of rotating friction. The main shaft automatic lubricating device comprises a machine frame, an inner rack is fixedly connected to the side wall in the machine frame, a rotating shaft is rotatably connected to the center in the machine frame, and a rotating disc is fixedly connected to the end part of the rotating shaft. A sliding groove is formed in the rotating disc, a sliding block is slidably connected into the sliding groove, a ratchet bar is fixedly connected to the end of the sliding block, a sliding plate is slidably connected into the rotating disc, a metal strip is fixedly connected into the sliding plate, and a metal feeler lever is fixedly connected to the side face, close to the sliding plate, of the rotating disc. When the rotating speed of a main shaft is lower than the normal rotating speed range, the metal feeler lever makes contact with the metal strip under the action of centrifugal force, the interior of the main shaft starts to be lubricated, and therefore the effects that the main shaft can be automatically lubricated according to the working state of the main shaft, the working time is saved, and the working efficiency is improved are achieved.

The invention discloses an industrial automation control system comprehensive practical training examination device, and particularly relates to the technical field of industrial automation control, the industrial automation control system comprehensive practical training examination device comprises a workbench, and the top of the workbench is provided with a camera assembly; the camera shooting assembly comprises a shell, a camera is arranged in the shell, a micro motor for driving the camera to rotate is fixedly arranged in the shell, an open groove is formed in the side, facing the workbench, of the shell, an adsorption layer is fixedly arranged on the inner wall in the shell, and a lifting plate is fixedly arranged at the bottom of the shell. The lifting plate is movably arranged on the workbench, a friction assembly for limiting the lifting plate is arranged on the workbench, and a touch screen connected with the output end of the camera is arranged on the workbench. The current assessment process of the user can be recorded and stored through the camera assembly and the camera, and after the assessment of the user is completed, the assessment process can be played back through the touch screen, so that the user can find out own defects conveniently, and the practicability is high.

The invention discloses a driving tool with an anti-skid structure. The driving tool comprises a main body, wherein the main body can be one of various pliers body structures which comprise a pipe wrench, long nose pliers, a water pipe wrench, electrician tongs, universal pliers, retaining ring pliers, slip joint pliers and a vice, various wrench structures which comprise an adjustable wrench, a brace wrench, a combination wrench, a pipe wrench, a sleeve and a hexagon wrench, and a clamp body structure which comprises a fixture, a clamping tool, a clamp and a woodworking clamp; a function end is arranged on the main body. The driving tool further comprises a grinding wheel body which is a collection of grinding wheel particles arranged on the surface of the function end, and a friction surface is formed on the function end. The grinding wheel body is arranged on the surface of the function end of the tool to increase a contact frictional force of the function end of the driving tool and driven work, the contact frictional force can be still effectively increased even greasy dirt exists. Furthermore, the contact frictional force with a workpiece is increased to reduce an exerted acting force when the driving tool drives the workpiece so as to decrease bite marks for the surface of the workpiece with lower hardness.