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75results about How to "Less prone to interference" patented technology

Four degrees of freedom wire driven man-machine interaction device capable of feeding back grasping force

The invention discloses a four degrees of freedom wire driven man-machine interaction device capable of feeding back grasping force, comprising a static platform, four rigid wires, four wire driven mechanism, a forefinger stall, a thumb stall and an elastic wire. The four rigid wires are pairwise divided into two groups. The two groups of rigid wires are respectively bound on a point on the thumb stall and on a point on the forefinger stall. The two stalls are connected by the elastic wire. The elastic wire and the rigid wires are collinear on the binding points on the thumb stall and the forefinger stall. The joint force of the tension of the rigid wires and the elastic force of the elastic wire can provide the operators with four degrees of freedom force feedback. The device has the following advantages: the device adopts parallel structure and has large working space and high output force and moment; the device is driven by wires, is low in transmission structure inertia, low in possibility of interference occurrence among the wires and flexible in operation; the used wires have small quantity and simple structure; the device can simultaneously simulate plane three degrees of freedom sense of force and one degree of freedom sense of grasping without changing the structure of the device; and the device has strong universality and wide application field.
Owner:BEIHANG UNIV

Driving arm of surgical robot

The invention provides a driving arm of a surgical robot, and belongs to the technical field of medical apparatuses. The problems that an existing driving arm of a surgical robot is supported on two sides and is large in size, large in weight and small in stretching range are solved. The driving arm comprises a fixed arm arranged on a stand, a middle section arm hinged to one end of the fixed arm,a front section arm hinged to the end, away from the fixed arm, of the middle section arm, and a sliding arm hinged to the end, away from the middle section arm, of the front section arm. A surgicalapparatus with an apparatus hand is arranged on the sliding arm. The middle section arm is located on one side of the fixed arm. The front section arm is located on one side of the middle section arm.The middle section arm and the front section arm form two adjacent sides of a parallelogram. An apocenter which is located on the vertex of the parallelogram and allows the apparatus hand to penetrate through is arranged between the middle section arm and the front section arm. A driving assembly for driving the apparatus hand to swing with the apocenter as the circle center is arranged between the stand and the sliding arm. Single-side support is adopted, so the driving arm has the advantages of being small in size, light in weight, large in stretching range and the like.
Owner:CHONGQING JINSHAN MEDICAL ROBOTICS CO LTD

Pre-grinding hob for machining micro-segment gears

The invention relates to a pre-grinding hob for machining micro-segment gears. A cutting edge normal tooth profile of the pre-grinding hob comprises a main cutting edge segment, an addendum arc segment and a characteristic curve connecting segment, the main cutting edge segment is a normal engagement contacting tooth profile curve segment for machining the micro-segment gears, micro-segment curved lines or micro-segment straight lines are smoothly connected to form the main cutting edge segment, the length of the main cutting edge segment is not larger than 1 micrometer, the characteristic curve connecting segment is a connecting curve segment of a pre-grinding hob tooth addendum arc segment and a micro-segment tooth profile segment, and the trend and the length of the characteristic curve connecting segment are related to the modulus, the initial pressure angle, the pressure angle increment, the grinding allowance, the distribution form of the grinding allowance and the like of the micro-segment gears to be machined. The high-precision micro-segment gears can meet specific use requirements and mass production conditions as far as possible according to theoretical calculation and experience of the trends and the lengths of an undercutting arc segment and a characteristic transition curve segment.
Owner:HEFEI UNIV OF TECH

Three-link-parallel-connection external fixator for tibia malformation correction

The invention provides a three-link-parallel-connection external fixator for tibia malformation correction. The three-link-parallel-connection external fixator comprises a proximal ring, a distal ring, a proximal-ring connection base, hooke hinges, three adjustment branch links, first adjustment assemblies, second adjustment assemblies, kirschner wires and kirschner wire clamps. The proximal ringand the distal ring of the external fixator are perpendicularly fixed to the deformed tibia through the kirschner wires respectively. The adjustment branch links are composed of the first adjustment assemblies and the second adjustment assemblies, and the first adjustment assemblies and the second adjustment assemblies are provided with adjustment nuts, the adjustment branch links can be extendedor shortened by rotating the first adjustment nut and the second adjustment nut, the distal ring can conduct spatial 6-DOF movement relative to the proximal ring accordingly, and any-space three-dimensional bone malformation can be corrected. According to the three-link-parallel-connection external fixator, three-link design is adopted to form a 3-PUPU parallel connection structure with 6-DOF, andthe three-link-parallel-connection external fixator has the advantages of being simple in structure, small in motion branch link number, large in working space, convenient to operate and not prone tobranch link interference.
Owner:BEIJING UNIV OF TECH

Card holder device

The invention relates to a card holder device, which includes a card holder, a first housing, a second housing and a card seat body. The first housing is connected fixedly with the second housing. The card seat body is disposed between the first housing and the second housing. A card holder is disposed movably inside the card seat body. The card seat body is provided with a card holder popping mechanism and a detection PIN mechanism thereon. The card holder popping mechanism is connected with the detection PIN mechanism. The detection PIN mechanism is disposed at the inner side of the card seat body. The first housing is provided with card holder locking rods respectively on left and right sides. The card holder locking rods match locking grooves in the card holder. The second housing is provided with a plurality of terminals thereon. The plurality of terminals correspond to ports disposed in the card seat body respectively, and are provided with an SIM card contact module at the head portion. According to the invention, the card holder device realizes the detection protection of an SIM card and easy insertion and popping of the card holder, with firm card lock and good adjustment performance; and solves the functional problems of yielding, instable contact and the like due to that the card holder is easily inserted reversely or obliquely and the SIM card contact module is prone to press a top plate downwards, thereby prolonging the service life of the card.
Owner:东台润田精密科技有限公司

Packing box

The invention provides a packing box for storing a plurality of goods. The packing box comprises a packing box body composed of a front panel, a rear panel, a left side plate and a right side plate, a plurality of transverse partition plates and a plurality of vertical partition plates, a plurality of rotating shafts, a rotary transmission device and a plurality of baffle plates; the plurality of transverse partition plates and the plurality of vertical partition plates are arranged inside a main body and divide the space of the main body into a plurality of containing cavities for storing the goods; a first groove is arranged at the bottom part of each vertical partition plate of each containing cavity; a hole is arranged at each of the two ends of the first groove; two ends of each rotating shaft are rotationally arranged inside the holes; the rotary transmission device drives the rotating shafts to rotate clockwise or anticlockwise; one side of each baffle plate is fixed on the rotating shaft, and the baffle plate rotates along with the rotating shaft to seal or open the bottom part of each goods containing cavity. The packing box disclosed by the invention is simple in structure and convenient to use, and does not easily bring inconvenience when the goods are stored and taken out at the same time.
Owner:山西廷烁未来智能装备技术研究院有限公司

Mixing station, main mixing building and metering structure thereof and metering structure establishment method

The invention discloses a mixing station, a main mixing building and a metering structure thereof, and a metering structure establishment method, wherein the metering structure of the main mixing building comprises a bracket, a water metering device, an additive metering device, an aggregate standby bin and a powder metering device, wherein the bracket comprises support legs and a platform arranged at the top ends of the support legs; a first mounting channel and a second mounting channel are arranged on the platform at an interval; the aggregate standby bin is fixedly mounted in the first mounting channel; a part of the aggregate standby bin is positioned at the upper part of the platform, and the other part of the aggregate standby bin is positioned at the lower part of the platform; the powder metering device is fixedly mounted in the second mounting channel; a part of the powder metering device is positioned at the upper part of the platform, and the other part of the powder metering device is positioned at the lower part of the platform; the water metering device and the additive metering device are fixed at the lower part of the platform. Through the application of the invention, the disassembly and assembly maintenance space and efficiency of all devices in the metering structure are effectively improved and the requirements of manufacturing and processing precision and on-site assembly experiences are lowered while the preassembly and the transportation are facilitated.
Owner:SANY AUTOMOBILE MFG CO LTD

Planetary gear type magnetic composite fluid polishing device

The invention relates to a planetary gear type magnetic composite fluid polishing device. According to the technical scheme, a bearing seat is fixedly connected to the lower end of a case, the lower end of the bearing seat is rotationally connected with a shell through a limiting plate, a motor is fixedly connected in the case through a mounting plate, a main shaft of the motor is fixedly connected with a rotating shaft through a coupler, the upper part of the rotating shaft is installed in the bearing seat through a bearing, the lower part of the rotating shaft is connected with a bottom plate of the bearing seat through a U-shaped bearing, the U-shaped bearing is fixedly connected with a needle rod positioned in the shell, the upper part of the needle rod is fixedly connected with a mainplanet gear, the main planet gear is meshed with an auxiliary planet gear, the auxiliary planet gear is meshed with an inner gear on the upper part of the shell, moreover, the auxiliary planet gear is rotationally connected with the needle rod through a connecting shaft, a plurality of magnet rings are fixedly connected to the lower part of the needle rod, moreover, the magnet rings are arrangedin the shell. The motor drives the needle rod to drive the main planet gear and the connecting shaft to rotate, then the auxiliary planet gear is enabled to rotate around the main planet gear, the auxiliary planet gear enables the inner gear and the main planet gear to rotate reversely, and then the rotating direction of the shell and the rotating direction of each magnet ring are opposite.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

Pipeline cleaning device for water conservancy project

The invention provides a pipeline cleaning device for water conservancy project. The pipeline cleaning device for the water conservancy project comprises a mounting disc, a mounting hole is coaxially formed in the end face of the mounting disc in a penetrating mode, a mounting pipe coaxial with the mounting hole is arranged on the end face of the mounting disc, a mud scraping plate is arranged on the outer side wall of the mounting pipe, the side wall, away from the mounting pipe, of the mud scraping plate is tightly attached to the inner wall of a pipeline, an auger blade is coaxially arranged in the mounting pipe and fixedly connected with the mounting pipe, and the auger blade is used for driving the mounting disc and the mounting pipe to rotate under the impact of water flow. When the pipeline cleaning device for the water conservancy project is used, the mounting disc is placed in the pipeline, then a water source is injected into the pipeline, the auger blade can drive the mounting disc and the mounting pipe to rotate under the impact of water flow, the water flow can push the mounting disc to move in the pipeline, therefore, movement and rotation of the mounting pipe in the pipeline are achieved, impurities attached to the inner wall of the pipeline can be further scraped away by the mud scraping plate, normal use of the pipeline is not prone to being affected, and the practicability of the pipeline cleaning device is achieved.
Owner:杭州艺东文化艺术有限公司

Power device for wearable power-assisting exoskeleton

The invention relates to a power device for a wearable power-assisting exoskeleton. The power device for the wearable power-assisting exoskeleton comprises a coil spring shell, wherein an opening is formed in the coil spring shell; a coil spring is located in the coil spring shell; the outer end head of the coil spring is hooked on the opening; shell covers are arranged on two sides of the coil spring shell; bearings are arranged in the centers of the shell covers; a pressing cover is arranged on the coil spring shell; a pull wire winds on the outer circumference of the coil spring shell; theend head of the pull wire is fixedly pressed on the coil spring shell through the pressing cover; the coil spring shell is located in a shell formed by a shell and a shell cover; a connecting seat isfixedly clamped between the shell and the shell cover; a connecting pipe is connected onto the connecting seat; a nut is connected to the upper end of the connecting pipe; the pull wire penetrates through the connecting seat, the connecting pipe and a nut center hole; an installation plate and a connecting plate are fixed onto the shell and the shell cover; a coil spring shaft is inserted into thecenter holes of the shell and the shell cover; the middle part of the coil spring shaft is inserted into bearing inner holes; the inner end head of the coil spring is inserted into a longitudinal groove on the coil spring shaft; one end of the coil spring shaft stretches to the outer side of the shell; a ratchet is arranged on the outer end head of the coil spring shaft; a pawl matched with the ratchet is rotatably connected onto the outer side surface of the shell; and a moving handle is connected to one end of the pawl.
Owner:CHIYUAN POWER DALIAN TECH CO LTD

Mask ear strap welding machine

The invention relates to the technical field of mask production equipment, in particular to a mask ear strap automatic welding machine. The mask ear strap welding machine comprises a frame, wherein aninput device, ear strap rope pulling devices, ear strap rope pulling wire positioning devices, ear strap rope turning devices, a welding device and an output device are arranged on the frame in sequence according to an assembly line. The input device is arranged on the frame and is used to input a mask body. The ear strap rope pulling devices are arranged on both sides of the frame and are used to pull ear strap ropes. The ear strap rope pulling wire positioning device guides the ear strap ropes into both sides of the input device. The ear strap rope turning devices are arranged on one sidesof the ear strap rope pulling wire positioning device, bend the ear strap ropes into a U-shape and guide U-shaped ear strap ropes into the ends of the mask body. The welding device is installed on theframe and is used to weld the U-shaped ear strap ropes to the mask body. The output device is used to output the masks welded with ear straps. The frame is provided with a first lifting device whichcontrols up and down lifting of each ear strap rope turning device. The two ear strap rope turning devices are respectively arranged on both sides of the first lifting device. The lower two sides of the first lifting device are provided with positioning and pressing devices for positioning the two ends of the mask body.
Owner:QUANZHOU LUOJIANG DISTRICT HUIFENG SANITARY CO LTD

Parallel flexible cable driven upper limb rehabilitation robot capable of realizing fixed-point output of flexible cables

The invention relates to a parallel flexible cable driven upper limb rehabilitation robot capable of realizing fixed-point output of flexible cables. The parallel flexible cable driven upper limb rehabilitation robot comprises driving modules, a sleeve, a ball guide wheel, a ball guide wheel fixing frame, the flexible cables, a sleeve support, an idle wheel, a T-shaped table, a seat and a supporting frame. And the seven groups of driving modules are intensively mounted at the bottom of the supporting frame and can also be randomly arranged as required. According to different arrangement forms, the flexible cable can be transmitted to the ball guide wheel through the sleeve and the idle wheel. The ball guide wheel is restrained on the supporting frame through the ball guide wheel fixing frame, and the ball guide wheel correspondingly rotates along with the change of the output direction of the flexible cables. The tail ends of the flexible cables are connected to the T-shaped table, the two end points of the top of the T-shaped table are connected with the two flexible cables respectively, the end points of the bottom of the T-shaped table are connected with the three flexible cables, and the T-shaped table drives the affected limb to achieve rehabilitation training. By means of the device, space fixed-point and multi-direction flexible output of the flexible cables can be achieved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Rotary cutting cutter

The invention discloses a rotary cutting cutter. The rotary cutting cutter comprises an outer cutter, an inner cutter, a rotation driving piece and a translational motion driving piece, wherein a sampling groove is formed in the front end of the outer cutter, the outer cutter sleeves the inner cutter; the rotation driving piece is in axial sliding fit with circumferential transmission of the inner cutter, and the translational motion driving piece is matched with the inner cutter through a lead screw structure; the rotation driving piece is used for driving the inner cutter to rotate, a rotating speed difference is formed by the rotation driving piece and the translational motion driving piece, and then axial motion of the inner cutter is driven through the rotating speed difference to realize sampling of the sampling groove; the rotation and translational motion of the inner cutter are driven in a differential driving manner through the rotation driving piece and the translational motion driving piece, complex and relatively heavy integral structure of the cutter caused by the fact that a speed reducer is needed to realize speed reduction output is avoided, the rotation and translational motion are guaranteed to be unlikely to intervene by setting a differential driving gear, the rotary cutting efficiency of operation is high, the motion stability of operating assemblies is high, and the safety of the operation is guaranteed.
Owner:CHONGQING XISHAN SCI & TECH
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