355 results about "Rotation flap" patented technology

A shower head includes a main body seal seat fixed to a main body. The main body seal seat is fitted in a rotation seat in a rotation way and located above a cover seal seat. The cover seal seat is fixed to a cover unit. The joint of the main body seal seat and the rotation seat has a groove to receive a first seal ring. The main body seal seat has at least one water inlet. The water inlet is provided with a spring and a second seal ring therein. The spring is located between the second seal ring and the water inlet of the main body seal seat. The cover seal seat has at least one through hole corresponding in position to the water inlet. The cover unit has at least one water outlet.

A housing for a hard disk drive includes an enclosure defining a window in a front side thereof for providing access to install the hard disk drive in the enclosure, a rotation arm having a front end and a back end, and a panel. The back end of the rotation arm is pivotally connected to a rear end of the enclosure, and the panel is pivotally connected to the front end of the rotation arm. The rotation arm and the panel are pivotable between a locked state in which the panel covers the window of the enclosure and the rotation arm abuts a lateral side of the enclosure, and an open state in which the panel is pulled away from the enclosure to expose the window.

A parallel robot includes a base, a movable platform, a plurality of control arms, a rotation arm, a plurality of first actuators, and a second actuator. The control arms rotatably interconnect to the base and the movable platform, respectively. Opposite ends of the rotation arm are universally rotatably connected to the base and the movable platform, respectively. The first actuators move the control arms, respectively. The second actuator rotates the rotation arm around a central axis. Each control arm comprises a first transmission member and a transmission cable. The first transmission member comprises a fan-shaped transmission portion. Each first actuator comprises a transmission shaft to engage the first transmission member of the control arm. The transmission cable coils around the transmission shaft for at least one winding, then criss-crosses, and winds on the fan-shaped transmission portion.

A parallel robot includes a fixed platform, a movable platform, a plurality of control arms, a rotation arm, a plurality of first actuators, and a second actuator. The control arms are rotatably connected to the fixed platform and the movable platform, respectively. Opposite ends of the rotation arm are universally rotatably connected to the fixed platform and the movable platform, respectively. The first actuators are to respectively move the control arms. The second actuator is to drive the rotation arm to rotate around the center axis of the rotation arm. Each control arm includes a first transmission unit including a transmission member. Each first actuator includes a transmission gear to engage the transmission member of the control arm.

An oscillation arm moves in a seesaw fashion about an oscillation axis which is supported by a support rod and which serves as a fulcrum. A rotation arm and a pressurizer are provided on one end of the oscillation arm. One end of the rotation arm is rotatably attached to the oscillation arm, and a load weight is placed on the other end of the rotation arm. By rotating the rotation arm, the magnitude of a force to be applied by the load weight to the pressurizer is adjusted. More specifically, by displacing the load weight to a predetermined position by rotation and then causing the load weight to stop at this position, a static load corresponding to the rotation angle can be applied to the pressurizer. Further, by causing the load weight to perform rotational motion, the magnitude of the force to be applied to the pressurizer is periodically varied, so that a load which varies periodically can be applied to hard tissue.

Provided are a centrifuge that rotates about a rotation axis to separate a material and a method of centrifugal separation. The container is coupled to the centrifuge to freely pivot upward and downward on a pivoting axis vertical to a rotation plane. The container has an opening at an upper end thereof and holds a material inside. An angle adjuster raises the central axis of the container beyond a perpendicular angle with the rotation axis while the centrifuge is rotating in order to arrange the opening of the container downward with respect to the rotation plane and point an end of the container opposite to the opening of the container upward with respect to the rotation plane, and allow a portion of layers formed during centrifugal separating to flow down through the opening.

The invention discloses a distribution photometer, comprising a base; the base is coaxially provided with a horizontal rotation central line and a fixed axle, one end of a light arm is connected with the fixed axle, the other end thereof is connected with the measured light source by a rotation drive device, a rotation shaft which can rotate surrounding the horizontal rotation central line is rigidly connected with a rotation arm, an electronic image pick-up device is arranged on the rotation arm and directly faces to the measured light source, the light shaft of the electronic image pick-up device is vertical to the rotation central line and passes through the lightness center of the measured light source, and a lightness probe is arranged on the rotation arm or a bracket at the opposite side of the base. In the invention, when the electronic image pick-up device is taken as the image lightness measuring device, all the lightness indexes including the glare value and the like of the light source or lamps can be examined comprehensively and accurately by combining the lightness probe, so as to provide the comprehensive, reliable and visualized data and image for the examination of the light source or the lamps and for the lighting design.

The invention belongs to a part for a lorry, in particular to an incorrect rotation preventing device of a transmission mechanism, solving the problem that a bottom door of the traditional lorry is easy to be incorrectly operated so as to cause running safety accidents and economic losses. The incorrect rotation preventing device of the transmission mechanism comprises an L-shaped limitator assembled with a transmission shaft of the transmission mechanism into a whole, the lower end of a suspension link which can be hung on the limitator is rotatablely arranged at the lower end of a rotation arm, the upper end of the rotation arm is rotatablely arranged on a supporting seat through the rotation shaft, a tie line between an upper limit contact point of the suspension link and the surface of the inner side of the limitator and a rotation centre of the suspension link is located below the rotation shaft of the rotation arm, and a tooth-type ratchet wheel and a pawl mechanism which prevent reversion of the rotation arm are arranged on the rotation shaft. The invention has the advantages of novel structure, reliable incorrect rotation preventing performance, good security performance and convenient operation, effectively prevents incorrect rotation of a switching mechanism of the bottom door of the lorry, not only can be applied to the lorry, but also can be popularized and applied to incorrect rotation of other transmission shafts.

The invention relates to a medical linear accelerator. The medical linear accelerator comprises a fixed frame, a treatment bed and a rotation device, an entrance/exit hole corresponding to the position of the treatment bed is arranged in the fixed frame, the rotation device is composed of first and second rotation frames, the end portion of the first rotation frame is provided with a central holein consistent with the entrance/exit hole, and the axis of the entrance/exit hole and the axis of an assembling bearing of the first rotation frame are coaxial with the rotation axis of the first rotation frame; the second rotation frame is connected with the first connection frame, the rotation axis of the first rotation frame is vertically intersected with the rotation axis of the second rotation frame; and the second rotation frame is provided with a beam generation device and a beam limiting device. According to the medical linear accelerator, the treatment bed does not move during work, abeam can be input to the human body at any angle in the 3D space, and the accelerator has an automatic isocenter verification function and an automatic beam verification function.

Embodiments of apparatus are directed to a rotational shock tester system comprising a disc drive support system, a drop mechanism and an impact apparatus. The disc drive support system includes a rotation plate, wherein a disc drive is coupled to the rotation plate. The drop mechanism is coupled to the disc drive support system and includes an elevating apparatus, wherein the elevating apparatus elevates and releases the rotation plate which is supporting the disc drive. The impact apparatus is releasably coupled to the drop mechanism and is aligned with the rotation plate such that upon release of the rotation plate, the rotation plate impacts the impact apparatus such that the impact apparatus imparts an angular acceleration to the rotation plate and imparts a rotational shock to the disc drive.

The invention provides a superconducting tape testing device which comprises a testing station and a Duwa container wherein the testing station further includes a base; a stretching part consisting of several first screw rods that stand vertically on the base and a sliding plate cooperating with the first screw rods; a fixing part consisting of a lower clamping body arranged on the base and an upper clamping body arranged in a rotation manner on the sliding plate; and a twisting part consisting of several rotation plates arranged on the upper clamping body through several vertical rods. The rotation plates can drive the upper clamping body to rotate. The Duwa container is filled with liquid nitrogen which cools the superconducting tape to a superconducting state. The superconducting tape testing device of the present invention integrates the functions of tape fixing, stretching and twisting and is capable of performing critical current testing under stretching and twisting combined stresses, and the stretching and twisting combined stresses can be easily adjusted. Therefore, the testing device has high testing efficiency.

A suction brush assembly is provided that includes a suction brush casing having a dust introducing channel for introducing dirt and a suction port for drawing the dirt from the dust introducing channel; a first and a second rotation plates rotatably disposed on a bottom surface of the suction brush casing and rotating in the opposite direction to each other; a rotation power source for providing power for rotating the rotation plates; a power transmission transmitting the rotation power of the rotation power source to the rotation plates; and a dirt guidance member formed on the first and the second rotation plates, for scraping off hairs or feathers from a surface to be cleaned to guide them to the dust introducing channel so that the hairs or the feathers can be easily guided to the suction port.

The invention discloses a lamp and a rotation device thereof. The lamp comprises a casing, a light source component and a lamp rotation device. The lamp rotation device comprises a rotation disc, a fixing table and a bolt. The rotation disc is movably connected with the fixing table and can rotate around own axis. A plurality of location holes are formed in the rotation disc and are arranged uniformly along the circumference of the rotation disc. The bolt comprises a fixing base and a movable pin penetrating the fixing base in a sliding mode. The fixing base is fixedly connected with the fixing table, and one end of the movable pin penetrates the fixing base to be snapped in the location holes to lock the relative position of the rotation disc and the fixing table. The rotation pin is connected with the light source component, and the fixing table is connected with the casing. Relative rotation is achieved through the matching of the rotation disc and the fixing table, the relative position of the rotation disc and the fixing table is locked by the matching of the movable pin of the bolt and the location holes after rotation, and automatic rotation of the rotation disc is prevented, accordingly, the angle function failure is prevented, the structure is simple, and production and mounting are facilitated.

The invention discloses a holographic projection display cabinet, comprising a display stand and a cabinet body; the display stand is a circular ring; two first rotation shafts are fixed on the side of the outer circle of the circular ring; the two first rotation shafts are arranged on the diameter line of the circular ring, wherein the first rotation shaft is connected to a first motor; each rotation shaft is hinged with a support rod which is vertically fixed on the cabinet body; the circular ring is hinged with two second rotation shafts which are perpendicular to the first rotation shaft, wherein one of the second rotation shaft is connected to a second motor; two second rotation shafts are positioned on the diameter of the circular ring; the two second rotation shafts are positioned on the end surface inside the circular ring and commonly fix a rotation frame; a projection box is fixed on the inner side of the rotation frame; the projection box is internally provided with a projection light source; the bottom of the projection box is a transparent glass plate; the bottom of the transparent glass plate is fixedly provided with a four-side cone body consisting of four trapezoid glass pieces which are plated with holographic films The invention provides a rotatable and no-watching dead angle holographic projection display cabinet which displays the static holographic projection.

The invention provides a radome test device. The device comprises a rotation support, a first rotation arm, a second rotation arm and a test connection portion, wherein the rotation support is rotatably arranged about a first axis; the first rotation arm is pivotally arranged on the rotation support, and the first rotation arm can rotate about a second axis; the second rotation arm is pivotally arranged on the first rotation arm, and the second rotation arm can rotate about a third axis; and the test connection portion is arranged on the second rotation arm. In the prior art, the structure of the radome test device is designed unreasonably so that a test result has a distortion problem when the radome test device carries out testing with a pointing error. In the technical scheme of the invention, the above problem is solved.

The invention discloses a device and a method for coating a curved cover plate. The curved cover plate is applied to a smart terminal. The device comprises a coating chamber which is connected with at least one coating instrument, a rotation axis which is arranged in the coating chamber and rotates around a first center shaft, and at least one rotation clamp which is connected to the rotation axis and comprises at least one clamp table for placing a curved cover plate, wherein the rotation clamp rotates around a second center shaft; revolving of the rotation axis is used for driving the rotation clamp to rotate; and the axial direction of the first center shaft is the same as that of the second center shaft. According to the device, the rotation axis rotates around the first center shaft in the coating process, and further the rotation clamp is driven to revolve around the first center shaft, and the aim of improving the coating uniformity by controlling the curved cover plate to revolve around the first center shaft and rotate around the second center shaft in the coating process can be achieved.

The invention relates to a support assembly for the locking structure of a rotation arm and the combined mirror of an onboard head-up display. The support assembly comprises a positioning wheel and a rotating arm which are provided with positioning slots, a positioning pin which is embedded in each positioning slot in a radial direction and a locking mechanism which is used for driving the positioning pin to embed into and take off a corresponding positioning slot are arranged on the rotating arm, the locking mechanism comprises a crank slide block mechanism, a slide block in the crank slide mechanism is matched with the positioning pin in a transmission way, a crank is provided with a locking position and a delocking position during a rotation process, a plane formed by the hinged axis of the connecting rod and the slide block in the crank slide block mechanism as well as the rotating axis of the crank is a reference plane, the hinged axis of the crank and the connecting rod is positioned on the reference plane or on one side of the reference plane, and when the hinged axis of the crank and the connecting rod is positioned on one side of the reference plane, a limit mechanism for enabling the crank to be in a locking position is arranged on the rotating arm. The invention provides the locking structure of the rotating arm used in assembly of the combined mirror of the head-up display on a transportation aircraft, and the locking structure is reliable in locking.

The invention discloses a fiber loose sleeve bulge detection apparatus. The apparatus comprises a detection apparatus base, and a pair of rotation arms symmetrically distributed on the detection apparatus base, wherein the rotation arms are fixed on the detection apparatus base through rotation shafts; line passing molds are clamped between opposing ends of the rotation arms, and the other ends of the rotation arms are connected with spring and base fixation devices through telescopic springs; and the sides of the telescopic springs are provided with sensing devices overlapping with the rotation arms, and the sensing devices are connected with a host through sensing device control lines. According to the invention, the two sides of each line passing mold are provided with line passing guide wheels, a fiber loose sleeve passes through the line passing molds and the line passing guide wheels, the sensing devices transmit information of rotation of the rotation arms, caused when the fiber loose sleeve with bulges passing through the line passing molds to the host, and thus detection of the bulges of the fiber loose sleeve is realized. The apparatus provided by the invention solves the problem of stagnation shutdown caused by the bulges of the loose sleeve is solved, the positions of the bulges can be accurately recorded, selective restoration is performed, and the production efficiency is improved.