32results about How to "Achieve rotational movement" patented technology

The invention provides a fixed point mechanism. In the fixed point mechanism, when a driving torque is acted on a first connecting rod component or a slide block device, the fixed point mechanism can realize a rotating motion around a fixed point; when the driving torque is acted on a fourth connecting rod component or a sixth connecting rod component, the fixed point mechanism can realize an extending motion corresponding to the fixed point; and when the driving torque is acted on the first connecting rod component or the slide block device, the other driving torque is acted on the fourth connecting rod component or the sixth connecting rod component, the fixed point mechanism can realize the rotating motion around the fixed point and the extending motion corresponding to the fixed point. That is, the fixed point mechanism has double degrees of freedom of the rotating motion around the fixed point and the extending motion corresponding to the fixed point.

The invention discloses a wearable biological merging lower limb rehabilitation robot. The wearable biological merging lower limb rehabilitation robot comprises a hip joint connecting device, knee joint connecting devices, ankle joint connecting devices and a weight reducing device, wherein the hip joint connecting device, the knee joint connecting devices and the ankle joint connecting devices are sequentially connected and worn on the lower limbs of a human body; and the weight reducing device is configured to be used for hanging the upper half body of the human body and the rehabilitation robot to alleviate the weight of the rehabilitation device applied to the human body. According to the wearable biological merging lower limb rehabilitation robot disclosed by the invention, the rehabilitation effect of lower limbs is improved; the rehabilitation devices at the knee joints adopt a biological merging idea, and the knee joints as a part of the mechanism are analyzed, so that the wearable biological merging lower limb rehabilitation robot is attached to the moving law of the knee joints of the human body, and the bionic performance is good; and besides, the rehabilitation devicesat the knee joints belong to parallel mechanisms which are completely coupled, and compared with a coupling parallel mechanism, the parallel mechanisms are simpler and more convenient to control.

The invention discloses a butt-jointing positioning and locking mechanism for a large device. The butt-jointing positioning and locking mechanism comprises a base, and further comprises a main bracket, a top column bracket and a top column which are arranged on the base; the top column can slide in a cavity of the top column bracket, and an elastic part is arranged between the end surface of the top column and the end surface of the top column bracket; and a V-shaped clamping plate and a lock hook are arranged on the base, the V-shaped clamping plate and the tail end of the lock hook are connected with a second column pin which is arranged on the base and rotate around the second column pin, and a side plate of the lock hook is connected with an output end of an air cylinder through a first column pin. According to the butt-jointing positioning and locking mechanism, the stroke of a telescopic rod of the air cylinder is controlled relying on the position sensing of the air cylinder, and the rotation movement of the lock hook is achieved; and a closed circuit is formed by the lock hook and a V-shaped clamping lock, mechanical limiting is achieved without other limiting sensors, thecontrol system is simple, and positioning is accurate and reliable.

The invention discloses a knee joint rehabilitation device, and belongs to the field of medical apparatuses. The knee joint rehabilitation device comprises a slope slide way which forms an included angle of 30 degrees with a bed face and shank supporting plates which are rotatably connected to the slope slide way through a rotary shaft, and foot sole exercising mechanisms are arranged at the frontends of the shank supporting plates; the rotary shaft is located in the middles of the shank supporting plates, the shank supporting plates can rotate around the rotary shaft, and a slide groove forthe rotary shaft to move up and down along a slope is formed in the corresponding position of the slope slide way; the foot sole exercising mechanisms comprise instep pressing plates and foot sole pushing plates, the two sides of each instep pressing plate and the two sides of the corresponding foot sole pushing plate are fixedly connected through connecting rods, and rotary rods which are rotatably connected with the front ends of the shank supporting plates are arranged at the two sides of the foot sole pushing plates; a detachable hydraulic cylinder is arranged at the portion, behind the rotary shaft, in a cavity, and the sides, connected with the ends of the shank supporting plates, of the rotary rods extend to form a driving part connected with rotary shaft or the hydraulic cylinder.By means of the knee joint rehabilitation device, flexion and extension motion of the legs and the rotation motion of the foot soles can be achieved, and the rehabilitation of the knee joints is promoted; the driving operation is convenient, the control over the flexion and extension is stable, and the application value is high.

The invention relates to a device for automatically opening a door of a household appliance, the device comprising a tappet and a motor, which is operatively connected to the tappet, such that the tappet is moved in the direction of the longitudinal axis of the tappet from a retracted position into an extended position, and the door is moved from a closed position into a partially open position, and the device also comprising an overload protection mechanism. The tappet has a shaft aligned with the tappet at a rearward advancing end in the extension direction, the shaft being held in threaded engagement with a drive wheel, the drive wheel being rotatable by means of a motor to move the tappet in the axial direction. The overload protection mechanism has a bushing through which the tappet penetrates, the tappet and the bushing are non-rotatable relative to one another about a longitudinal axis of the tappet, the tappet can be moved in the direction of the longitudinal axis relative to the bushing, a rotation of the bushing about the longitudinal axis of the tappet is locked when the extension movement of the tappet is not blocked or prevented or when no force acts on the tappet in the retraction direction of the tappet, and the bushing is locked when the extension movement of the tappet is blocked or prevented. Or when a force acts axially on the tappet in the retraction direction of the tappet, the bushing rotates together with the tappet about the longitudinal axis of the tappet.

The invention relates to an attachment device for attaching a front panel of a drawer to a drawer frame, having a retaining element that can be attached to the front panel and a closure element that can be attached to the drawer frame, wherein the closure element has a carrier and a closure that is mounted on the carrier so as to rotate about a rotational axis, said closure having a retaining section, wherein a spring is operatively connected to the closure, wherein the closure is designed to expose a retaining region in an open rotational position of the closure and to block the retaining region in a closed position of the closure. According to the invention, a transmission element is connected by articulated means through a rotary / sliding connection on the closure side spaced apart fromthe rotational axis of the closure, the rotary / sliding connection on the closure side has a first and a second control cam, and the two control cams cross each other. The attachment device provides ameans of releasably attaching a front panel to a drawer frame that is simple, reliable and requires little space.

The invention discloses a special-shaped mobile phone display screen edge grinding device. The special-shaped mobile phone display screen edge grinding device comprises a supporting plate provided with air suction holes, wherein first suction cups communicated with the air suction holes are arranged on the supporting plate; an annular groove set is formed in the supporting plate; the annular groove set is provided with a base; a driving piece is arranged between the base and the annular groove set; the base is provided with a pushing piece; an extending strip is arranged at the pushing end ofthe pushing piece; the extending strip is provided with an edge grinding assembly; the supporting plate is provided with a vent hole communicated with the air suction holes; the vent hole is rotationally connected with an air supply pipe; the air supply pipe is rotationally connected with a first connector; the first connector is provided with a connecting hole communicated with the interior of the air supply pipe; the first connector is detachably connected with a ventilation assembly; the ventilation assembly is provided with an air channel set communicated with the interior of the air supply pipe; the ventilation assembly is provided with a rotating piece; a connecting plate is arranged at the driving end of the rotating piece and provided with a plurality of second suction cups; and the plurality of suction cups are communicate with the air channel set. By means of the arrangement, the special-shaped mobile phone display screen edge grinding device has the advantage of being capable of grinding a plurality of display screens at the same time.

A device is described for producing a fiber product by laying down melt-spun fibers onto a laydown belt. A spinning device is associated with a top side of the laydown belt and a suction-extraction device is associated with the bottom side. A vacuum device has a movable suction chamber which interacts with the spinning device in order to lay down the fibers on the laydown belt. To generate a uniform suction flow in every position of the suction chamber, the suction chamber is formed from a stationary bottom box and a movable top box which are coupled to one another in a pressure-tight manner.

The invention relates to a device (C) for depositing a sliver (B) in a can, comprising a depositing head (1) having pull-off rollers (20, 21) for transporting the sliver across a rotatable turntable arranged below the depositing head (1) into the can (D1, D2) and comprising at least one pivotably arranged sliver funnel (17) for automatically cutting the sliver when the can is exchanged. The invention is characterized in that the device has means by means of which the distance between the pull-off rollers (20, 21) can be enlarged and by means of which at least the sliver funnel (17) can be moved away from the pull-off rollers (20, 21).

The present invention relates to a dish-washing machine (1), especially to a domestic dish-washing machine. The dish-washing machine has a wasting space (2) configured to hold dishes and bowls, glasscups, knives and forks or similar washing objects, and the washing space is limited by a plurality of wall portions (13). At least one of the wall portions (13) has one or more than one through holes(14), and the one or more than one through holes are respectively equipped with a film (15). The film (15) is equipped with a mechanical seal device (16).

The invention discloses a high-altitude track bridging structure which is used for butt joint of a high-altitude test track and a moving track in a wind tunnel test and used for completing movement ofa test model in a test section. The bridging structure comprises a lap joint track and a first rotating arm connected to the lap joint track, wherein the other end of the first rotating arm is connected with a rotating shaft; the other end of the rotating shaft is connected with a second rotating arm; the other end of the second rotating arm is connected to a push rod of an air cylinder; and thesecond rotating arm, the first rotating arm and the lap joint track are driven to rotate through front-back displacement of the push rod of the air cylinder. The air cylinder is adopted for driving, the stroke of a telescopic rod of the air cylinder is controlled according to position sensing of the air cylinder, and rotating motion of the lap joint track is achieved; mechanical limiting is adopted, other limiting sensors are not needed, and a control system is simple. The bridging structure is used for short-distance bridging of the two tracks, and due to the uniqueness of the structure, bridging operation is easy, precision is high, and maintenance is easy.

The invention discloses a portable barbecue device which comprises a base. A heat conduction layer is connected to the base, fixed blocks are connected to the left end and the right end of the heat conduction layer, a socket is connected to the front end of the heat conduction layer, the position of the socket slightly protrudes out of the heat conduction layer, a head cover is connected to the heat conduction layer and shaped like sphericity, a baffle is connected to the head cover, a side plate is connected between the baffle and the head cover, and a handle is connected to the head cover. The barbecue device is small and exquisite and can be carried with a person, when the device is taken out for use, fixed rings are arranged at the two ends of the heat conduction layer, the heat conduction layer can be fixed to a table top, the phenomenon that due to the fact that the device moves and tilts, things in barbecue are poured out is prevented, the socket is connected to the front section inside the heat conduction layer, the socket can slide into the heat conduction layer to be hidden, the phenomenon that due to the fact that the socket is exposed and stained with oil, the socket is made to be shorted out is prevented, the safety is high, a heat insulated pad is arranged on the head cover, when people barbecue, the temperature is high when the head cover is used for covering, people are likely to be scalded, the hands of people do not make direct contact with the head cover through the heat insulated pad, and therefore rotating motion of the head cover is achieved.

The invention relates to a device for simulating modular rolling type conductive rotary motion in a vacuum environment. The device comprises an insulating shell, a rolling conductive module, a high-voltage electric brush, an inner ring insulating layer, an outer ring insulating layer, a load resistor, an insulating jackscrew, an insulating mandrel, a vacuum motor and an annular conductive groove.The device provided by the invention is used for simulating the relative rotation of a power transmission key part, namely a conductive rotary joint, of a space super-power and power-expandable spacecraft such as a platform type space solar power station in the electrifying process. By simulating the motion, a basis is provided for detecting the rolling friction / conductive contact performance of the conductive rotary joint, a mechanical friction / electric contact composite damage mechanism and an insulating medium charging and discharging mechanism.

The invention provides a four-degree-of-freedom high-speed parallel robot with the infinite rotation ability. The robot comprises a fixed platform, a moving platform and a first branched chain, a second branched chain, a third branched chain and a fourth branched chain arranged between the fixed platform and the moving platform; four driving devices are symmetrically arranged on the fixed platform; the first branched chain and the third branched chain are of the same structures, and the second branched chain and the fourth branched chain are of the same structures; and the moving platform comprises a fork-shaped frame, a first rocker, a second rocker, a crank A, a connecting rod A, a crank B, a connecting rod B, a crank C, a connecting rod C, a crank D, a connecting rod D, a cylindrical gear A, a cylindrical gear B, a cylindrical gear C, a cylindrical gear D and a central cylindrical gear. The robot adopts four sets of symmetrically arranged rocker and crank mechanisms, and by staggering dead points of each set of rocker mechanisms and transmission of an ordinary gear train, infinite rotation of an end effector in the forward or reverse direction can be achieved.

The invention discloses a bionic robotic fish synergistically propelled by tail and pectoral fins. The bionic robotic fish comprises a detachable bionic fish shell which is detachably provided with a cylindrical sealed cabin, and a battery and a controller are fixed in the cylindrical sealed cabin; the bionic robotic fish further comprises two pectoral fin rotation driving parts which are symmetrically and detachably mounted on the two sides of the front part of the detachable bionic fish shell, and two pectoral fin front-back swing driving parts, and the driving ends of the two pectoral fin front-back swing driving parts are detachably connected with the driving ends of the corresponding pectoral fin rotation driving parts respectively; the bionic robotic fish further comprises two pectoral fins which are detachably connected with the corresponding pectoral fin front-back swing driving parts respectively, and a tail fin left-right swing driving part, and one side of the tail fin left-right swing driving part is detachably connected with the tail part of the detachable bionic fish shell; the bionic robotic fish further comprises a tail fin which is detachably connected with the driving end of the tail fin left-right swing driving part. All the modules of the bionic robotic fish are detachably connected, and the bionic robotic fish is simple in structure, low in cost, convenient to expand, easy to mount and dismount and capable of simulating the swimming posture of real fish.

The invention relates to a retaining device for attaching a front panel of a drawer to a drawer frame, having a retaining element that can be attached to the front panel and a closure element that canbe attached to the drawer frame. A spring is operatively connected to the closure. The closure is designed to expose a retaining region of the retaining element in an opened rotational position and to block the retaining region in a closed position. According to the invention, a transmission element is in an articulated connection by means of a rotary / sliding connection on the closure side and spaced part from the rotational axis of the closure; a rotary / sliding connection is arranged on the opener side with a bearing element on the transmission element opposite the rotary / sliding connectionon the closure side; the rotary / sliding connection on the opener side establishes a connection with a movably supported opener; the rotary / sliding connection on the opener side has a first control camand a second control cam in which the bearing element is guided; and the two control cams cross each other. The retaining device according to the invention is characterized by a compact design.