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49results about How to "Guaranteed freedom" patented technology

Marine self-refueling device for unmanned boat

The invention discloses a marine self-refueling device for an unmanned boat, and relates to the technical field of unmanned boat application. The device includes a fuel pipe retracting and releasing mechanism, a fuel pipe alignment, clamping and docking mechanism and a controller. The fuel pipe retracting and releasing mechanism is arranged above the tubing alignment clamping and docking mechanism, the fuel pipe retracting and releasing mechanism is used for driving the fuel pipe, the fuel pipe alignment, clamping and docking mechanism includes a lower bracket, a guide mechanism, a self-centering mechanism and a Z-axis electric control translation table, the guide mechanism is fixed to the upper part of the lower bracket, the guide mechanism is arranged above the self-centering mechanism,the Z-axis electric control translation table is fixed on the side wall of the lower bracket, the self-centering mechanism is fixed on one side of the Z-axis electric control translation table, the self-centering mechanism is driven by the Z-axis electric control translation table and makes the fuel pipe connected with an oil receiving port of the unmanned boat, and the controller is connected with a friction wheel transmission mechanism, the self-centering mechanism and the Z-axis electric control translation table. The device can refuel the unmanned boat without lifting the unmanned boat toa mother ship, thus realizing self-refueling and improving the working efficiency.
Owner:SHANGHAI UNIV

Method and device for solving problem of singularity posture of exoskeleton robot shoulder joint

The invention provides a method for solving the problem of the singularity posture of an exoskeleton robot shoulder joint. The method includes the steps that firstly, the motion intention of limbs is detected in a manner of additionally arranging an elbow sleeve and pressure sensors; an exoskeleton humerus rear section component is composed of a rid piece and an annular bearing inner ring; the elbow sleeve concentric with the bearing inner ring is additionally arranged on the inner wall of the bearing inner ring; the four pressure sensors are installed between an annular bearing and the elbow sleeve at equal intervals and used for detecting positive pressure from any direction; the sensors are used for measuring two sets of orthogonal component force values so as to solve the intensity and the direction of a resultant force vector; a drive motor A controls an exoskeleton shoulder joint L-shaped rocker arm to drive an exoskeleton humerus front section to rotate to the position perpendicular to the direction of force f, and meanwhile a motor C and the motor A rotate synchronously in opposite directions so that the posture of an exoskeleton humerus rear section can be kept unchanged; and along with the situation that a motor B drives the exoskeleton humerus front section to rotate, the axis of the motor C does not coincide with the axis of the motor A any more, and the shoulder joint is not in the singularity posture any more.
Owner:广西东兴市富佳五金皮具有限公司

Independent suspended damping device of unmanned aerial vehicle exhaust pipe

The invention discloses an independent suspended damping device of an unmanned aerial vehicle exhaust pipe. The damping device comprises a connecting body and a movable sleeve. The movable sleeve is arranged above the connecting body. A first fixing body and a second fixing body are symmetrically inserted in the two sides of the connecting body and sleeved with the unmanned aerial vehicle exhaustpipe. A movable device is arranged between the movable sleeve and the connecting body, and comprises a pair of second telescopic shafts, a pair of first telescopic shafts and a connecting rod. The connecting block is arranged at one end of each first telescopic shaft. The two connecting blocks are rotationally connected. The damping device is simple in design; through the cooperation of the connecting body, the first fixing body, the second fixing body and the movable device, the independent damping of a suspending assembly is realized; compared with the traditional hard connection or the connection with an unmanned aerial vehicle body after overall damping of the exhaust pipe, the better damping property is achieved, the influences on the flight of the unmanned aerial vehicle are reduced,and the stability of the unmanned aerial vehicle during flight is improved.
Owner:CHENGDU LEYE TECH CO LTD

Similarity law design method for free flight test of aircraft mounted separation wind tunnel

The present invention discloses a similarity law design method for a free flight test of an aircraft mounted separation wind tunnel. The method comprises: based on that angular displacements of the wind tunnel test separation trajectory and the real aircraft separation motion trajectory are equal, deriving a relation between the time reduction ratio kt and the mass reduction ratio km; (2) according to the similarity between horizontal line displacements of the wind tunnel test separation trajectory and the real aircraft separation motion trajectory, calculating the mass reduction ratio km; (3)according to the similarity between vertical displacements of the wind tunnel test separation trajectory and the real aircraft separation motion trajectory, deriving the relation between the wind tunnel test model initial separation velocity v0m and the real aircraft separation motion time ts; and (4) when the real aircraft separation distance is the separation influence critical distance, substituting the corresponding real aircraft separation motion time ts into the relation between the model initial separation velocity v0m and the real aircraft separation motion time ts so as to determinethe final model initial separation velocity v0m. According to the method provided by the present invention, the non-correspondence between the model line displacement and the angular displacement is reduced, and the reliability of the test is improved.
Owner:CHINA ACAD OF AEROSPACE AERODYNAMICS

All-direction human motion positioning belt and positioning method thereof

The invention discloses an all-direction human motion positioning belt which comprises a rotating disk component, a vertical telescopic mechanism, a horizontal rotating shaft part and a belt body. Therotating disk component can freely rotate in a plane around a vertical fixed axis, the vertical telescopic mechanism is connected with the rotating disk component through a damped universal joint andcan freely swing along with the damped universal joint, the horizontal rotating shaft part is movably connected with the vertical telescopic mechanism and can rotate around a horizontal center axis,the belt body is movably connected with the horizontal rotating shaft part and can vertically swing around a joint, the belt body is tied on a human body, the belt body and the human body can synchronously move, and an attitude measurement module is arranged on the vertical telescopic mechanism and used for measuring three-axis attitude information of the vertical telescopic mechanism and transmitting the measured attitude information. The belt is provided with a rotating disk, an elastic damping universal joint, the vertical telescopic mechanism, the horizontal rotating shaft part and the belt body which are combined, the human body on a motion platform is supported and protected by the belt, rotation of three-direction rotating shafts is decomposed, and freedom of movement and attitudesof the human body in the belt is ensured.
Owner:SOUTHEAST UNIV

Healthcare underpants for the old

The invention provides a pair of healthcare underpants for the old. The healthcare underpants for the old comprise a body, an absorption layer is arranged at the front end of the body, an abrasion resistant layer is arranged at the rear end of the body, and a carrier fabric layer is arranged at the bottom of the inner side of the body. The body is formed by sewing bamboo charcoal fiber fabric obtained after nano antibacterial and anti-mite treatment. The absorption layer sequentially comprises a plastic film, macromolecule absorption resin, filter paper and skin-friendly non-woven fabric from outside to inside. The abrasion resistant layer is made of non-woven fabric obtained after nano antibacterial and anti-mite treatment. The surface of the carrier fabric layer is coated with tourmaline particles. A plurality of conducting points are uniformly distributed on the surface of the carrier fabric layer, and any two adjacent conducting points are connected through a conducting wire. The healthcare underpants for the old have the advantages that the structure is reasonable, and traveling freedom of the old is guaranteed due to the design of the absorption layer; the service life of the healthcare underpants for the old is prolonged due to the design of the abrasion resistant layer; the tourmaline particles on the surface of the carrier fabric layer are beneficial to promoting blood circulation and metabolism of the position covered with the tourmaline particles.
Owner:天津华夏健龙科技发展有限公司

Charging pile capable of acquiring electric meter information

The invention relates to the field of electric quantity acquisition and sampling, and discloses a charging pile capable of acquiring electric meter information. The charging pile capable of acquiring the electric meter information comprises an electric quantity data acquisition module, an analog/digital conversion module, a wireless transmission module and a server, wherein the electric quantity data acquisition module is connected with the analog/digital conversion module so as to convert acquired analog electric quantity into digital electric quantity, and the digital electric quantity is output to the server through the wireless transmission module and is stored; a metering system is arranged inside the server so as to acquire the conventional electric quantity of the charging pile; the server compares the acquired conventional electric quantity with the digital electric quantity; and under different circumstances, the server adopts the digital electric quantity as the electric meter information. The charging pile capable of acquiring the electric meter information solves the problem that in the prior art, the error of charging pile detection is relatively large, and electric quantity detection of the charging pile is achieved.
Owner:WUHU HENGTIAN YIKAI SOFTWARE TECH CO LTD

Circular bead pricking machine

The invention belongs to the technical field of jewelry processing, and particularly relates to a circular bead pricking machine which comprises a base, a first power mechanism, a pricking assembly, a one-way bearing block, a fixing disc rotation device and a conveying mechanism. The first power mechanism is arranged on the base; the pricking assembly is movably connected with the first power mechanism and comprises a pricking gun fixing plate and pricking guns, the pricking gun fixing plate is arranged above the power mechanism, and the pricking guns are arranged on the pricking gun fixing plate; the one-way bearing block is arranged on the base, a one-way bearing and a circular bead fixing disc are arranged on the one-way bearing block, the circular bead fixing disc is rotationally connected with the one-way bearing and is positioned below the pricking guns, and a plurality of circular bead accommodating holes are formed in the circular bead fixing disc; the fixing disc rotation device can drive the circular bead fixing disc to rotate, and the conveying mechanism is arranged on the base. The circular bead pricking machine has the advantages that circular beads can be automatically pricked and processed, accordingly, the labor intensity can be relieved for workers, the efficiency can be improved, the labor cost can be reduced, the processing cost can be lowered, and the uniformity of pricking effects and the pricking quality can be guaranteed.
Owner:山东蓝天首饰有限公司

Single-mode satellite communication terminal with multi-antenna interface, and method

InactiveCN108828638ARealize functions such as signal transmission and receptionReduce lossSatellite radio beaconingTelecommunicationsSatellite
The invention discloses a single-mode satellite communication terminal with a multi-antenna interface, and a method. The terminal comprises a first antenna access circuit, a second antenna access circuit, a single-mode communication main control module and a channel selection circuit. The single-mode communication main control module selects whether to connect one antenna access circuit on the multi-antenna interface as a communication channel according to antenna line state information. The channel selection circuit is used for determining whether to connect the selected one antenna access circuit as a communication channel or not under the action of the single-mode communication main control module. The selected one antenna access circuit is the first antenna access circuit or the secondantenna access circuit. According to the embodiment of the invention, the whole single-mode satellite communication terminal can support the access of multiple antennas to realize multi-channel communication, and establishes the channel selection circuit between multiple antenna access circuits and the single-mode communication main control module to control the signal of only one antenna to enter the main control module, and the function of transmitting and receiving signals of the single-mode satellite communication terminal is realized based on the antenna.
Owner:CHENGDU PRECISION TIME SPACE TECH CO LTD

Grinding wheel safe installation and fixing mechanism

The invention relates to the technical field of grinding wheel equipment, and discloses a grinding wheel safe installation and fixing mechanism. The grinding wheel safe installation and fixing mechanism comprises a grinding wheel machine shell, wherein a bearing is fixedly installed in the grinding wheel machine shell, a power output shaft is fixedly installed in the bearing, a clamping seat is fixedly connected to the position, located on the left side of the bearing, of the side wall of the inner cavity of the grinding wheel machine shell, a connecting shaft is fixedly connected to one end of the power output shaft, a grinding wheel is movably installed on the outer surface of the connecting shaft in a sleeving mode, and a clamping groove is formed in the inner side surface of the grinding wheel. According to the grinding wheel safe installation and fixing mechanism, a pressing rod is arranged on a threaded shaft, through the matching of a first hinge rod, a second hinge rod, a clamping rod and a clamping seat, the power output shaft can be fixed in the process of tightening a nut to fix the grinding wheel, thus the situation that the power output shaft is prone to following rotating in the tightening process of the nut is prevented, and after the nut is tightened, the free state of the power output shaft can be ensured.
Owner:湖南省方圆磨料磨具有限公司

Tree stabilizing device for municipal engineering

The invention relates to a tree stabilizing device for municipal engineering. The device includes two bases and an adjusting mechanism, the upper end of the rear side of each base is horizontally andfixedly connected with a guide pillar, a through hole is formed in each guide pillar, a through groove is formed in the front side of the through hole of each guide pillar, the interior of each through hole is slidably connected with a transverse rod, the front side of each transverse rod penetrates through the corresponding through groove and is fixedly connected with a connecting block, the front side of each connecting block is fixedly connected with a connecting rod, the end of the upper side of each connecting rod is fixedly connected with a vertically-upward lifting rod, the sides, closeto each other, of the lifting rods are horizontally provided with supporting rods, the ends, close to each other, of the supporting rods are fixedly connected with clamp mounting plates, and the sides, close to each other, of the clamp mounting plates are fixedly connected with clamping plates; the adjusting mechanism includes a first threaded pipe and a first threaded rod, the left end of the first threaded pipe is movably connected to the interior of a T-shaped groove in the right end of the left transverse rod, the right end of the first threaded rod is movably connected to the interior ofa T-shaped groove in the left end of the right transverse rod, and the first threaded pipe is in cooperation with the first threaded rod. The tree stabilizing device for municipal engineering is simple in structure, convenient in operation and suitable for application and popularization.
Owner:徐勇

A method and device for solving the problem of singular configuration of the shoulder joint of an exoskeleton robot

Disclosed is a method for solving the problem of strange configuration of an exoskeleton robot shoulder joint. Firstly, the motion intention of a limb is detected by way of additionally arranging an elbow sleeve and a force sensor at an elbow joint, an exoskeleton humerus rear section member is composed of a rod and an annular bearing inner ring, an elbow sleeve concentric with the bearing inner ring is additionally arranged on an inner wall of the bearing inner ring, and four pressure sensors are installed between the annular bearing and the elbow sleeve at equal intervals for detecting positive pressure from any direction; the sensors measure two sets of orthogonal component force values so as to solve the magnitude and the direction of a resultant force vector f; a drive electric motor A controls an exoskeleton shoulder joint L-shaped rocker arm to drive an exoskeleton humerus front section to rotate to the position perpendicular to the direction of force f, meanwhile an electric motor C and the electric motor A rotate synchronously in opposite directions so that the posture of an exoskeleton humerus rear section remains unchanged; and as an electric motor B drives the exoskeleton humerus front section to rotate, the axis of the electric motor C does not coincide with the axis of the electric motor A, and the shoulder joint is not in a strange configuration.
Owner:广西东兴市富佳五金皮具有限公司
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