10 results about "Bending joint" patented technology

The application provides a self-adaptive grasping dexterous hand thumb, which comprises a side swing joint, a bending joint and a fingertip, the side swing joint comprises a fixed base, a side swing driver and a first reversing transmission assembly; the bending joint comprises a connecting base, a finger joint linkage assembly, a bending driver and a second reversing transmission assembly. The application realizes the three-joint structure of the bionic thumb, can realize multi-directional rotation and bending actions, improves the degree of freedom and action accuracy, realizes the double driving function of side swing and bending through the built-in driving structure, thereby expanding the movable range. The self-adaptive assembly can dynamically adjust the relative position and clamping force of each finger joint of the thumb in real time, so as to realize the self-adaptive enveloping of the object, and further significantly improve the grasping stability of the dexterous hand thumb for objects of different shapes and sizes, effectively expand the application scene, and the application has the advantages of high flexibility, strong grasping adaptability, high action accuracy, fast response speed, high degree of freedom, high space utilization and the like.

The application relates to the technical field of submarine optical cable connection, and discloses an injection-molding top-pressing type submarine optical cable joint box, which comprises a cable rubber anti-bending device, one end of the cable rubber anti-bending device is fixedly connected with a metal anti-bending device adapter, one end of the cable rubber anti-bending device is fixedly installed with a metal anti-bending joint through the metal anti-bending device adapter, one end of the metal anti-bending joint is fixedly installed with an injection-molding cable joint insert, the inside of the injection-molding cable joint insert is fixedly provided with an injection-molding joint, the inner wall of the cable rubber anti-bending device is fixedly installed with a PU pipe body, and one end of the PU pipe body is sleeved with one end of the injection-molding joint. The injection-molding process is used to inject an injection-molding colloid to the connection interface, the colloid is filled and solidified in a No.1 annular groove, a No.2 annular groove and a thread groove of a submarine cable outer sheath, and a connection structure with mechanical interlocking and sealing integration is formed. Meanwhile, the anti-bending chain formed by the cable rubber anti-bending device and the metal anti-bending joint and the weight-reducing framework jointly improve the anti-bending capacity and the structural stability of the joint box.

A water pipe connector that rotates in both horizontal and oblique directions includes a horizontally arranged connecting pipe and an obliquely arranged bend connector. One end of the bend connector is coaxially connected to the connecting pipe via a spherical rotary joint, and the bend connector rotates around the axis of the connecting pipe. The other end of the bend connector is inclined relative to the axis of the connecting pipe and has a rotatable nut. The spherical rotary joint includes a first hemispherical shell and a second hemispherical shell, and a rotary connector is provided between the first hemispherical shell and the second hemispherical shell. The rotary connector includes a radially movable joint assembly threaded to the connecting pipe and a retaining ring assembly that cooperates with the radial rotation of the bend connector. This invention achieves the rotational performance of being inclined relative to the axis of the rotary joint by rotating the bend connector around the axis of the rotary joint and using a rotary nut, thus achieving the technical purpose of bidirectional rotation in both horizontal and oblique directions and expanding the connection angle adaptability range of the water pipe connector.

This utility model discloses a plastic-coated steel pipe bend joint suitable for low-temperature conditions, comprising a bend section and straight pipe sections welded to both ends, forming a bend structure. It also includes: a stress buffer device comprising a corrugated compensator welded to the junction of the bend section and the straight pipe section, and a flow-damping orifice plate connected to the other end face of the corrugated compensator; and a damping sliding pair comprising a damping sliding tube fixed to the outer wall of the flow-damping orifice plate and a fixed damping kit fitted into the inner wall of the straight pipe section. The end face of the corrugated compensator connected to the flow-damping orifice plate is a free end that slides axially along the straight pipe section, and the damping sliding tube and the fixed damping kit achieve a sliding seal through an elastic seal. This utility model uses the sealing gas, the elastic material in the corrugated compensator, and the friction generated by the relative sliding of the damping sliding tube and the fixed damping kit to jointly counteract the pressure caused by frost heave, making the joint fully adaptable to low-temperature conditions.

This invention belongs to the field of oil and gas field development and relates to an integrated system and method for abrasive jet casing window opening and sidetracking. The system includes a drill pipe, the top of which is connected to the drive unit of the drilling rig, and the bottom of which is connected to a window opening and sidetracking tool string. The window opening and sidetracking tool string is composed of an electro-hydraulic orienting device, a bend joint, a connecting sub, a shaping milling tap, and a hydraulic drill bit connected in sequence. Both the drill pipe and the window opening and sidetracking tool string have abrasive slurry passage chamber inside. The method utilizes abrasive jets to perform non-contact window opening in the casing section, and continuously enters the sidetracking stage during the same tool string operation. The orienting of the tool string is controlled by the electro-hydraulic orienting device, and the small-angle geometric offset provided by the bend joint ensures that the sidetracked wellbore extends along a predetermined direction. When necessary, the window is milled and shaped by the shaping milling tap, which reduces the frequency of process switching, reduces operational risks, and improves the controllability of the window opening position and wellbore trajectory. It is suitable for engineering applications in old well stimulation and complex well conditions.

The utility model discloses a kind of plastic material frame suitcases, including lid and box;The lid and the box are respectively equipped with only accommodating cavity, and the accommodating cavity is used to place articles;The lid and the box can be relatively moved, to realize closure or opening;The straight line segment of the edge of the lid is provided with upper straight line segment edge protection, and adjacent upper straight line segment edge protection is connected by upper bend joint;The straight line segment of the edge of the box is provided with lower straight line segment edge protection;Adjacent lower straight line segment edge protection is connected by lower bend joint;The upper straight line segment edge protection, upper bend joint, lower straight line segment edge protection and lower bend joint in the plastic material frame suitcase of the utility model can be mass-produced, low in cost, also light in weight, when assembling, first respectively assemble, then respectively bond, and assembly process is simple;The plastic material frame suitcase of the utility model is easy to install, light in weight, low in cost.

A wellbore drilling system includes a drill string and an auxiliary device, such as a steering arm or rib, a reamer blade, or a bent sub assembly. The auxiliary device is powered with reactive forces generated while imbedding mud pulse signals in drilling mud flowing through the drill string. The reactive forces are transmitted to the auxiliary device either mechanically or hydraulically. The mud pulse signals are imbedded into the drilling mud with a valve assembly in the drill string, which includes an orifice placed in a path of the flow of drilling mud. The mud pulses are generated by reciprocating a plug member in the drilling mud flow at a location adjacent to and downstream of the orifice. The reactive forces are harvested from the reciprocating movement itself or from pressure differences caused by the reciprocating movement.

This invention relates to the technical field of welding forming equipment, specifically a high-precision welding forming equipment for compressor pipe bending joints. The equipment includes a frustum, a rotating table, a feeding mechanism, and a welding robot. Support legs are fixedly installed at the bottom of the frustum, and a rotating shaft is rotatably installed at the center of the frustum. The rotating shaft is driven by a servo motor located below the frustum. Four points A, B, C, and D are set on the frustum, with equal spacing between them. The rotating table is fixedly installed on the upper end of the rotating shaft and has workpiece placement slots. By setting four workpiece placement slots circumferentially on the rotating table, the four processes of feeding, welding, weld point cooling, and unloading are realized at the four points respectively. This allows for the simultaneous feeding, unloading, and weld point cooling of other workpieces during the welding process, effectively reducing the waiting time of the welding robot and thus significantly improving the overall working efficiency of the welding forming equipment.

The utility model discloses a kind of bending tools, it is related to reinforcing steel bar bending tool technical field;The bending tool of the utility model includes bending part, it can be movably sleeved on main reinforcement, and can rotate around the axis of main reinforcement;Gripping portion is fixedly connected with the side of the bending part;Bending groove is arranged on the bending part, and penetrates the side wall of the bending part, hoop can be worn in the bending groove.The bending tool provided by the utility model can improve the butt joint precision of hoop bending joint and main reinforcement.