145 results about "Cylindrical joint" patented technology

An insertion portion of an endoscope includes a flexible tubular framework composed of short-cylindrical joint rings coupled in series via rotatable connecting shafts; and flexible internal elements including a treatment tool insertion channel and a optical fiber bundle(s). Each short-cylindrical joint ring is coupled at one end to one adjacent joint ring via two connecting shafts at 180-degree symmetrical positions and is coupled at the other end to another adjacent joint ring via another two connecting shafts at 180-degree symmetrical positions with a 90-degree phase shift with respect to the one adjacent joint ring. Inner end surfaces of one set of connecting shafts at a specific circumferential position are arranged to face the treatment tool insertion channel, and inner end surfaces of another set of the connecting shafts at another specific circumferential direction are arranged to face or substantially face the optical fiber bundle.

A recessed portion is formed on an outer periphery of a cylindrical joint body to be inserted into a joint mounting hole of a fluid pressure apparatus. A pull-out preventing ring which is formed separately from the joint body can be deformed elastically in a radial direction, and has one or more annular edge(s) on an outer peripheral face which is fitted in the recessed portion and over the outer periphery of the joint body. The annular edge(s) of the pull-out preventing ring is(are) locked to a hole wall of the joint mounting hole when a force in such a direction as to pull out the pipe joint acts on the pipe joint.

A mud motor universal joint assembly that includes a pair of adjacent cylindrical joints having threaded connection means at one end and interlocking jaws at the other, each cylindrical joint having an internal blind tapered bore within the interlocking jaw portion containing a hard cylindrical load bearing member. The two joints are connected by a hardened cylindrical rod member inserted into the internal blind tapered bore of each joint and retained therein by perpendicular retaining pins. The joints, connecting rod, and bearing members are surface hardened to improve wear. No balls or seals are required and the internal hardened connecting rod and bearing members are easily replaced if necessary at a nominal cost.

The invention relates to a coil type triangular horizontal framework articulate space stretch arm, which comprises a plurality of articulated triangular horizontal frameworks, three longitudinal rods and a plurality of opposite angles stiffening cables, wherein, each articulated triangular horizontal framework comprises three triangular articulation joints and three Ti-Ni alloy short rods, and provides the longitudinal rods with lateral support; each triangular articulation joint comprises a 60 DEG connector, a cylindrical joint with stairs, three bolts and two nuts; end heads of each Ti-Ni alloy short rod are fixed in the holes of the 60 DEG connectors through two M2 bolts; two holes used for fixing the opposite angles stiffening cables are further formed on each of the 60 DEG connectors; an M2 thread is arranged on the a thinner end of the cylindrical joint; the cylindrical joint is limited to make three-displacements and two-rotations relative to the connector with 60 DEG through nuts, without limiting the cylindrical joint rotate axially; and the cylindrical joint fixedly connects the longitudinal rods and the 60 DEG connectors through an axial M3 bolt. The invention can be applied in the fields of the space detection arms, the large scale solar battery arrays of spacecrafts, the main structure of space stations, and the like.

The exercise apparatus the AB Challenger Apparatus, is an exercise device which is comprised of light cylindrical straight and curved components, which are easily assembled by the use of cylindrical joints. The apparatus described herein is particularly recommended for strengthening all abdominal muscles, serratus anterior, chest muscles, anterior deltoids, flexor groups of the hand and leg muscles.

The subject invention provides a modular six-degrees-of-freedom spatial mechanism for spinal disc prosthesis, with up to three rotational and up to three translational degrees-of-freedom within the entire workspace of a Functional Spinal Unit (FSU). The prosthetic disc mechanism consists of up to three independent cylindrical joints, each joint providing one linear and one rotational degree of freedom. The superior and inferior vertebral plates of the device anchor to the superior and inferior vertebrae of an FSU and the device maintains an inseparable mechanical linkage between those vertebrae for all normal motions and positions of the FSU. The device utilizes resilient spring elements, components that self-adjust in position and orientation, in conjunction with a fiber reinforced boot and toroidal belt, as well as a unique hydraulic damping system to accommodate dynamic and static forces and sudden shocks on the FSU. The device can adjust to maintain the appropriate, but changing, intervertebral spacing during normal FSU motion. Scaling, conjoined with cushioned, joint-limit stops, allows the device to realize almost any nominal spinal articulation, from the cervical to lumbar regions.

An electrically-driven steering column apparatus includes a steering column rotatably holding a steering shaft and capable of adjusting a position of the steering wheel, and a power transmission mechanism for transmitting to the steering column a rotational driving force of an electric motor as a position adjusting motion driving force, wherein the power transmission mechanism has a joint constructed of a spherical joint element and a cylindrical joint element in which the spherical joint element is slidably fitted, on within a driving force transmission route.

A steering system for a vehicle may include a load displacement system allowing transient loads of the steering mechanism to be displaced. The steering system may also include a first coupling mechanism coupling an electric motor to a rack housing, and a second coupling mechanism coupling a ball nut to a rack. A method for providing an actuation force to a rack of a vehicle includes isolating non-axial loads from an electric motor of a steering system and isolating non-axial loads from a linearly actuatable member of a rotary-to-linear conversion device in the steering system. An actuator for a steering system may include a rotary to linear actuator, a movable linear section, and an interface between the rotary to linear actuator and the linear section. The interface may include one or more cylindrical joints, revolute joints, compliant members, or a block on a plane wherein the total degrees of freedom for the system including the rotary to linear actuator, rack, and interface may be one, while the interface may be limited to three degrees of freedom.

This pipe joint comprises a hollow cylindrical joint body made of elastic material such as heat-resistant rubber with a prescribed length, and a circular flange for connecting piping attached to the both sides of the joint body, on the side of the inner circumference of the joint body is provided a bellows metal pipe closely contacted with the joint body, and the thickness of the joint body is at least larger than the size of the summit or the trough of bellows of the metal pipe.

A steering system for a vehicle may include a load displacement system allowing transient loads of the steering mechanism to be displaced. The steering system may also include a first coupling mechanism coupling an electric motor to a rack housing, and a second coupling mechanism coupling a ball nut to a rack. A method for providing an actuation force to a rack of a vehicle includes isolating non-axial loads from an electric motor of a steering system and isolating non-axial loads from a linearly actuatable member of a rotary-to-linear conversion device in the steering system. An actuator for a steering system may include a rotary to linear actuator, a movable linear section, and an interface between the rotary to linear actuator and the linear section. The interface may include one or more cylindrical joints, revolute joints, compliant members, or a block on a plane wherein the total degrees of freedom for the system including the rotary to linear actuator, rack, and interface may be one, while the interface may be limited to three degrees of freedom.

A two-part bucket stabilizing apparatus for use with cylindrical joint compound buckets or the like during the mixing of the contents thereof includes a horizontal base member containing an opening for receiving the bottom of the bucket, and a support member having a first edge portion pivotally connected with the base member, and a remote edge portion containing a semi-circular recess. The support member is pivotally operable from an initial horizontal position upwardly and inwardly toward a clamping position above the base portion in which the wall of the semi-circular recess is in clamping engagement with the outer circumferential wall surface of the bucket.

A pipe joint is made up of a hollow cylindrical joint body made of an elastic material with a prescribed length, a circular flange embedded into each of the ends of the joint body, through holes provided axially at prescribed intervals in the direction of the circumference of the flanges and the joint body, and both flanges connected to the joint body with a connecting appliance penetrating into these through holes.

An insertion portion of an endoscope includes a bendable flexible tubular framework composed of a plurality of short-cylindrical joint rings which are coupled in series via rotatable connecting shafts, and a plurality of flexible internal elements which are inserted into the flexible tubular framework and arranged to extend straightly in an axial direction of the flexible tubular framework upon distal ends of the flexible internal elements being fixed to a distal end of the insertion portion. Inner end surfaces of each of the connecting shafts are positioned between two adjacent flexible internal elements of the flexible internal elements around a perimeter of the plurality of flexible internal elements.

The invention relates to an amphibious multiunit wheel type pipeline robot overhaul system. The system comprises an S-shaped robot. The S-shaped robot is formed by connecting a head joint, wheels, deflection bevel gears, lifting cylindrical joints, a drive module and a tail joint through joints. The S-shaped robot is further provided with a lower-layer control system for controlling the S-shaped robot to walk and connected with a cleaning mechanical arm, a CCD camera, lighting bulbs and various sensors. The lower-layer control system is connected with an upper computer through a cable and communicates with the upper computer, the upper computer is connected with a displayer, and the upper computer and the lower-layer control system are connected with a power source through cables. The system has the advantages that motion is flexible, switching between land and water environments is free, blockage of a sewer is effectively solved, and the blockage position is precisely positioned, and breakthrough progress is achieved for application of the field of robots.

A nock adapter for a solid shaft bowfishing arrow fits on a standard conical taper of a solid shaft arrow and provides an extended cylindrical joint releasably engaging a cylindrical boss of a nock for field replacement of the nock while resisting lateral disengaging impacts.

The invention discloses an intrinsically safe mine pressure alarm for a mine, which comprises a cylindrical joint, wherein one end of the cylindrical joint is opened, and the other end of the cylindrical joint is closed; the opened end of the cylindrical joint is internally sleeved with a valve cylinder; the diameter of the outer wall of the valve cylinder, which is arranged in the cylindrical joint, is less than the inner diameter of the cylindrical joint; the valve cylinder is in thread matching sealing with the cylindrical joint at the opened end of the cylindrical joint; a piston cavity is formed by inner sides of the outer walls of the cylindrical joint and the valve cylinder, which are in matching sealing; a piston is arranged in the valve cylinder; a convex plate which is higher than a piston body is arranged on the piston; a spring is sleeved on one end of the convex plate, which is far away from the cylindrical joint and is close to the opened end of the cylindrical joint; a cylindrical valve cylinder is arranged outside the spring; the other end of the piston is positioned in the piston cavity, and a shaft sleeve is sleeved at the outer part of the piston in a sliding manner; and the shaft sleeve is in external limit and sliding matching with the inner wall of the valve cylinder. The intrinsically safe mine pressure alarm has the advantages of convenience in processing, accuracy in measurement and long service life.

In a pipe joint structure, a second screw thread formed on an outer circumference end of a joint member is screwed deep into a first screw thread formed on an inner circumference of a cylindrical joint fitting member whose axial end is bonded to a common rail body so that a second flat surface at an axial end of the joint member is pressed against a first flat surface on an outer circumference of the common rail body to form a fluid tight sealing surface therebetween in a state that a fluid passage opened to the second flat surface communicates with a through-hole opened to the first flat surface. Accordingly, even if a position of the joint fitting member to the common rail body is slightly shifted, fluid tight sealing between the first and second flat surfaces is assured.

The invention discloses a combined supporting device consisting of a net stand and concrete and an application thereof in the underground engineering. The net stand is composed of a plurality of horizontal, vertical, cable-stayed connecting pipe fittings connected by multidirectional joints, and an anchor rod and an anchor pile are connected with the net stand through a pad and nuts, and connected with surrounding rock at the other end, wherein the gap between the net stand and surrounding rock is filled with the concrete. The application comprises the steps of manufacturing of multidirectional joints and connecting pipe fittings, connection of steel bushing cylindrical joints and the net stand, hanging of steel net pieces between net stand and surrounding rock and filling of filling backboard bag with concrete or sprayed concrete after the installation of the net stand, and hanging of a flexible film pump at the inner side of the net stand to inject the concrete to form the net stand and concrete combined support. The invention is characterized by ready-to-install structure, simple use, low cost, good entirety and rational structure stress to co-load the ground pressure through the entirety formed by the net stand and surrounding rock. The invention is especially suitable for the tunnel support of bad grounds which contain water and feature quagginess and fractures and other complex stratums, and is widely used for the temporary or permanent support of subsurface engineering such as mine workings, traffic tunnels, water conservancy and national defense.

A variable-height thermal-interface device is provided for transferring heat from a heat source to a sink. The device comprises a first uniaxial rotary cylindrical joint comprising a first cylindrically concave surface in slidable contact with a first cylindrically convex surface. The first cylindrically concave surface and the first cylindrically convex surface share a common first radius of curvature relative to a common first cylinder axis. The first cylindrically concave surface is operable to rotate about the common first cylinder axis relative to the first cylindrically concave surface to compensate for uniaxial angular misalignment between the source and the heat sink.

A joint for resin pipes, comprising: a joint body (1) having a joint barrel (10); a locking mechanism (20); a sealing body (50); indicator (60); cylindrical cover (40). The locking mechanism (20) includes: a main ring body (25); and an angular tooth portion (22) arranged on the annular convex portion (21) of the connecting cylinder portion 10. The cylindrical cover (40) has a transparent cover body (42) and a band ring (43) preventing the cover (42) from expanding and deforming. The indicator (60) has the insertion length of the resin tube (100) from the initial position fitted on the main ring body (25) to the stepped annular surface (11) at the root of the connecting cylinder (10). Set the effect at the appropriate value. In the present invention, by studying the locking mechanism and the like for preventing the resin tube from slipping, it can exert a high anti-slip performance and obtain a sufficiently large connection strength.

A soft pipe connecting device, comprising: a cylindrical joint, a fixed sleeve inside the joint for supporting the joint, and an outer ring sheathed outside the soft pipe and tightly pressing the soft pipe against the outer wall surface of the joint. The outside wall surface of the cylindrical joint is provided in sequence with a limit baffle, a groove and plurality of pawls whose tooth-tips are oriented towards the groove. The outer ring is made of expandable material. The inside wall surface of the outer ring is provided with a projection on the position corresponding to that of the groove of the joint, and plurality of reverse pawls whose positions correspond to those of the pawls of the joint. The groove may be provided therein with a sealing ring. The sealing effect is very good and can effectively prevent the leakage of gas or liquid.

The invention discloses a blade type sea water pump. The blade type sea water pump comprises a front port plate, a stator and a rear port plate, wherein the front port plate and the rear port plate are arranged at a high-pressure oil port channel communicating with an oil discharge outlet, and a low-pressure oil port channel communicating with an oil suction opening in a matched manner; a rotor is arranged in the stator; a plurality of blades are arranged between the rotor and the stator; a plurality of cylindrical grooves which are in one-to-one correspondence to the blades are formed in the outer peripheral wall of the rotor in the axial direction; cylindrical joints which are matched with the cylindrical grooves are arranged at inner ends of the blades; the blades are in running fit with the rotor through the cylindrical joints; trunnions are respectively arranged on two sides of the outer end of each blade; a rolling bearing is assembled on each trunnion in an interference manner; annular grooves are respectively formed in the front port plate and the rear port plate; the corresponding rolling bearings can be mounted in the annular grooves; and when the blades rotate along with the rotor, the trunnions drive the rolling bearings to roll around the annular grooves. The blade type sea water pump is compact and reasonable in structure, convenient to machine, small in abrasion, stable and reliable in working performance and relatively long in service life.

The invention relates to a bearing propelled stirring quenching device comprising a quenching oil tank, three oil propellers with a same structure, and three fluid directors with a same structure. The three oil propellers are arranged at the quenching oil tank with same distances along a circumferential direction. The three fluid directors are arranged at the bottom of the quenching oil tank with same distances along a circumferential direction. Directing tubes of the three fluid directors are arranged along a circumferential direction, and are arranged with a 30 DEG elevation angle upward. The oil propellers are assembled by using parts of oil transmission tubes, propeller shafts, propeller blades, cylindrical joints, punched bends, and the like. Oil inlet holes on the upper parts of the oil transmission tubes of the three oil propellers are respectively connected with oil outlet holes on the quenching oil tank through pipelines. Punched bends of the three oil propellers are respectively connected with connection bends of the three fluid directors through three bend through holes at the lower part of the quenching oil tank. With the device provided by the invention, large bearing quenching hardness and hardness uniformity are improved, and bearing quality and bearing service life are improved.

The invention provides an enclosed type environmentally-friendly sampling device. The device comprises a cylindrical joint which is matched with a sampling point pipeline; the cylindrical joint is internally opened with a material channel which penetrates the whole joint; the external surface on one side of the cylindrical joint is provided with an external thread; a hollow circular column form sampling cover is connected to the thread at one side of the cylindrical joint; a sealing gasket is arranged between the cover body of the hollow circular column form sampling cover and the terminal of the cylindrical joint, and a sampling hole is opened on the cover body. The enclosed type environmentally-friendly sampling device can solve the problem that a chemical material channel does not have special-purpose sampling devices, so that enclosing characteristics in the sampling process is realized, the leakage case of materials does not happen, and the structure is simple with safety and environmental protection.

The starter includes a noise reduction filter having at least one capacitor, a positive side lead plate connected to a first end of the capacitor and a negative side lead plate connected to a second end of the capacitor, the positive side lead plate being connected to a motor lead wire of a motor through a connection fitting, the negative side lead plate being fixed and ground-connected to a frame of the motor. The connection fitting includes a connection arm connected to the positive side lead plate and a cylindrical joint section integrally formed with the connection arm, the joint section being fitted in a root section of the motor lead wire drawn outside the frame through a grommet attached to the frame to be electrically connected to the motor lead wire.

The invention relates to a corrugated pipe joint capable of securely connecting a corrugated pipe with a simple operation and capable of keeping a proper air-tight sealing state. In the corrugated pipe joint 1, a cylindrical joint main body 10 having an inner hole 11 into which a corrugated pipe T having annular furrows and ridges on its outer circumference is inserted, an air-tight packing 31, arranged in a joint main body inner hole, for tightly contacting with an outer circumferential surface of the corrugated pipe, a retainer 40, arranged in a joint main body inner hole, having a claw 43, of which diameter is enlargeable and contractable, engaging with an annular furrow part of the corrugated pipe when its diameter is contracted and a retainer pressing sleeve 50 for sliding in a rear direction and pressing the retainer to contract so that the claw of the retainer engages with the annular furrow part of the corrugated pipe. The retainer pressing sleeve is prevented from sliding in the joint main body inner hole in the rear direction till a tip end of the corrugated pipe reaches a predetermined position at a rear part of the joint main body inner hole.

The invention relates to a capillary inlet flow regulator. The capillary inlet flow regulator is characterized by comprising a cylindrical water outlet base, a water inlet cover, a core seat and a disk-shaped elastic membrane, wherein a round hole is arranged on the sidewall of the water outlet base, a cylindrical joint pipeline is arranged on the circumference of the round hole, the water inlet cover is arranged on the top portion of the cylindrical joint pipeline, a water inlet communicated with the cylindrical joint pipeline is arranged on the cover plate, the core seat is arranged in the cylindrical joint pipeline and comprises a round bottom plate, a cylindrical retaining wall is arranged on the top portion of the round bottom plate, a water inlet ring is formed between the periphery of the cylindrical retaining wall and the cylindrical joint pipeline, a central water outlet is arranged at the center of the round bottom plate, a plurality of fan rings protruding upwards are arranged at intervals on the circumference of the central water outlet, surfaces of the fan rings are arc-shaped, groove runners are formed between every two adjacent fan rings, a central jacking column protruding upwards is arranged in the central water outlet, detachable adjusting plates are respectively arranged at positions, corresponding to the groove runners, on the cylindrical retaining wall, and the disk-shaped elastic membrane is arranged in the cylindrical retaining wall and above the fan rings and the central jacking column.

The present invention relates to a drain pipe joint capable of improving the workability of the drain piping equipment, and a drain pipe structure using the same. The drain pipe joint 20 functions to conjoin drainage discharged from drain branch pipes 11 to 15 extending from a plurality of drain fittings 1 to 5, respectively, and to discharge the drainage to a downstream drain main pipe 16. The drain pipe joint 20 has a cylindrical joint main body 22, one end of which is provided with discharging opening communicated with a drain main pipe 16, and has a plurality of branch pipe connection portions 24, which may be connected to each of the drain branch pipe 12 to 15, formed in a peripheral wall thereof. The side surface and the upper surface of the joint main body 22 are provided with one or more branch pipe connection portions 24 respectively.