944results about How to "Avoid tilting" patented technology

An valve prosthesis, such as an artificial venous valve, having a support frame and leaf structure comprising one or more leaflets in which the outer edge of each leaflet engages the inner circumference of the bodily passageway along a serpentine path urged against the passageway by an expandable frame, while the inner edges move in response to fluid to restrict retrograde flow. Optionally, one or more elements can extend from the support frame / leaf structure to provide centering support and / or protection from the leaflet adhering to the vessel wall. In one embodiment, the centering support structure comprises a second or third expandable frames attached to and extending from the proximal and / or distal ends of main valve structure and support frame. In another embodiment, one or more support elements extend outward from the valve support frame to engage the vessel wall to provide greater longitudinal stability.

A semiconductor package system is provided including forming a support platform, mounting a first device over the support platform, forming a bump on the support platform, and mounting a second device on the first device and the bump.

A drive device is assembled with a fitting outer wall of a heat sink and a fitting inner wall of a frame combined by an interference fit. The drive device allows for a sufficient assembly accuracy of coaxiality, and may prevent a pulsation of motor torque and a vibration sound caused by a tilt of a shaft. Further, heat conductivity at a contacting portion is improved for heat dissipation from an electronic element in a controller section via the heat sink, the frame, and a bottom plate.

The invention discloses an automatic assembling system of proton exchange membrane fuel cell stacks. The automatic assembling system mainly comprises a rack, an assembly delivery mechanism, an assembly pick-up mechanism, a stack assembling mechanism, an on-line sealing detector, a displacement control mechanism, transverse limiting mechanisms, a stack ejecting mechanism, a stack transfer mechanism and a corresponding control system. With the adoption of the automatic assembling system, continuous and automatic assembling and on-line sealing detection of the fuel cell stacks can be realized; no locating pin and controllable displacement assembling modes are realized in an assembling process; and the problems that locating pin drawing damages the assembling quality of the stacks and the overall performance of the stacks is low due to an assembling displacement deviation are avoided. According to the automatic assembling system of the stacks, automatic assembling of the stacks in different models can be realized; the assembling reliability and the assembling consistency of the stacks are ensured; and the assembling efficiency of the stacks is improved.

The invention discloses a flight control method of a multi-rotor craft including a plurality of rotor assemblies. Each rotor assembly includes a motor and a rotor driven to rotate by the motor. The control method includes judging whether the rotor assembly meets power absence or not; if power absence occurs, the rotation direction of a motor of at least one rotor assembly except the rotor assembly meeting the power absence is changed according to the lateral tilting direction of the multi-rotor craft. The invention also discloses a flight control device, a control system of the multi-rotor craft and the multi-rotor craft.

An optical element module according to the present invention is provided, in which: one or a plurality of optical elements are housed within a light shielding holder; a slanting surface is provided on an outer circumference side of an optical surface of the optical element facing an aperture opening of the light shielding holder; a slanting surface is provided on an inner surface on a back side of the aperture opening of the light shielding holder in such a manner to face the slanting surface of the optical element; and the slanting surface of the optical element and the slanting surface of the light shielding holder are guided together, so that the aperture opening of the light shielding holder and the optical surface of the optical element are positioned.

A gripper claw has replaceable gripper fingers and two gripper jaws each with a first jaw flange. The jaws are fastened to respective jaw flanges and are movable on linear guides, toward and away from one another. Each jaw has a holding mandrel, with holding cone. Each finger is reversibly insertable into one gripper jaw and has a finger base with depression complementary to a respective cone. The cone has a length that is at least one-third of its largest diameter, and its smallest diameter is at most 90% of the largest cone diameter. The jaws and the bases form a holding mechanism which holds the fingers in a stop position on a respective gripper jaw and they form a stabilizing mechanism that, with the holding cone, prevent tilting of the fingers.

The invention provides a free-film type anti-inclination air spring, which belongs to the technical field of air springs. A transverse stopping gap and a vertical stopping gap exist in the air spring, so that the vibration impact during operation can not be well reduced. In the invention, a lengthened cylindrical pin is adopted, a friction block is arranged, and meanwhile, the concave design for a stopping seat is carried out, and the upper wall of the stopping seat is heightened, so that the design not only can be used for providing a reasonable free gap for the air spring, but also can be used for effectively preventing the phenomenon that the cylindrical pin jumps out of the stopping seat from occurring; and in addition, the air spring is provided with an anti-leveling anti-inclination rubber block, so that the phenomenon that the air spring is inclined can be effectively prevented, and a horizontal elastic gap is realized by the rubber block together with a transverse limiting device. The free-film type anti-inclination air spring is mainly used for a damping system of a magnetic-suspension vehicle.

The invention relates to the technical field of building machinery, and discloses a wall building robot. The wall building robot comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with an installation fixing frame; a moving opening is formed in each of the two sides of the inner wall of the fixing frame; a transmission assembly is arranged at each of the two sides of the fixing frame; a motor is arranged at one side of the transmission assembly; the inner wall of the moving opening is glidingly connected with a rotating shaft; one side of the rotating shaft is rotationally connected with a rotating seat; one side of the rotating seat is fixedly connected with a brick placing table; the top of the bottom plate is fixedly provided with an air cylinder; the topof the air cylinder is fixedly connected with a support plate; the support plate and the brick placing table are movably connected; the top of the bottom plate is movably connected with a brick placing plate; the top of the inner wall of the fixing frame is fixedly connected with slide rails. The wall building robot solves the problems that the existing wall building mode is most labor operation;the engineering quantity is great, and the brick mass is great, so that a large amount of labor and materials are needed for wall building; much time is consumed.

The invention discloses an accommodating device for hardware machining detection. The accommodating device comprises the ground, wherein an inclined plate and a bracket are arranged on the ground; two sliding grooves are formed in the top of the inclined plate; the relatively-high end surface of the inclined plate is fixedly connected with the left side of the bracket; an electric lifting device is arranged at the inner bottom end of the bracket; a limiting plate and limiting blocks are arranged on the inner wall of the bracket; a lifting plate is arranged at the top end of the electric lifting device; the two sides of the top of the lifting plate are positioned inside limiting grooves in the limiting blocks; an accommodating box is arranged at the top of the lifting plate; rotating wheels are movably connected with the two sides of the bottom of the accommodating box through fixing frames; and a groove is formed in the front side of the accommodating box. The accommodating device provided by the invention is simple in structure and convenient to use, and can be lifted to an easy-to-reach position when unqualified hardware parts needs to be placed, so that the unqualified hardware parts can be more convenient to place, and the moving for unified treatment can be easy, convenient and rapid.

The invention discloses a high-precision automatic welding device for silicon steel sheets. The high-precision automatic welding device for the silicon steel sheets comprises a worktable with a feeding mechanism, welding stations arranged on the worktable, a welding mechanism and a sheet arranging mechanism, wherein the welding mechanism and the sheet arranging mechanism are arranged in correspondence to the welding stations. The feeding mechanism achieves alternative feeding through a dual-station feeding mechanism, and work efficiency is greatly improved; according to the welding mechanism,a lifting mechanism is adopted to drive a lifting rotating type welding gun mechanism, and a welding gun can be driven to rotate so as to implement inclined welding action; and a poking type sheet arranging mechanism is adopted as the sheet arranging mechanism, an ejector rod is adopted in the mechanism for upward poking the silicon steel sheets in an interference manner for pressing, and the silicon steel sheets can be pressed more tightly. In total, defects of an existing device in the prior art are overcome, the sheet arranging effect, work efficiency and welding precision are greatly improved, and the device is a relatively precise device, has multiple functions, and is very high in automation degree, and capable of saving enterprise production cost. Meanwhile, the quality of silicon steel sheet welding motor products of an enterprise is improved.

The invention relates to a pre-control method for preventing sunk well inclination. The pre-control method for preventing the sunk well inclination is characterized by comprising the following steps: before predicting the sunk well inclination before a sunk well sinks or during sunk well construction, constructing 4 to 10 support piles in the sunk well, and fixing a steel structural column at the top of the support pile; before the sunk well construction enters a soil layer which easily causes the sunk well inclination, temporarily stopping the sunk well construction; firstly, fixedly mounting 4 to 12 steel corbels at the lower part inside the well wall of the sunk well along the same circumference, then digging soil with a depth of 1 to 3.5 meters, fixedly mounting a support beam on the steel structural column, and extending the end of the support beam into the underside of the steel corbel inside the well wall of the sunk well; then beginning the sunk well construction till the sunk well sinks to the steel corbels and falls onto the support beam; vertically moving all the steel corbels upwards for 0.5 to 3 meters, and fixedly mounting the steel corbels inside the well wall of the sunk well till the lower end of the well wall of the sunk well sinks to the design elevation at the bottom; and then dismounting the steel corbels and the support beam, and dismounting the steel structural column and the support pile above the design elevation at the bottom of the sunk well. The method can pre-control the sunk well inclination.

The invention relates to an anti-frost-lifting anti-thaw-collapse foundation self-refrigeration device and a use method thereof. The device includes a foundation side wall self-refrigeration structureand a lock catch, and the foundation side wall self-refrigeration structure is arranged on the periphery of a pile foundation and includes a temperature sensor, a temperature control device, a control switch, a liquid nitrogen storage tank, an S-shaped tube and a vacuum generator. The temperature sensor is arranged on the side wall of pile foundation and connected with the temperature control device, the temperature control device is connected with and controls the control switch which is connected with the liquid nitrogen storage tank and one end of the S-shaped tube, the liquid nitrogen storage tank is arranged near the pile foundation, the S-shaped tube is arranged on the periphery of the pile foundation, the other end of the S-shaped tube is connected with the vacuum generator which is arranged near the pile foundation, and the lock catch is arranged on the pile foundation. The device makes the pile foundation effectively resist uplifting force and thaw collapse caused by swellingforce of frozen earth, and is suitable for pile foundations in high-cold areas, especially in permafrost or seasonal frozen soil areas, to prevent tower foundations of power transmission lines from frost lifting thaw collapse.

The invention provides an outdoor display device of ideologies and politics. The device comprises a base, a groove formed in the base, a display mechanism arranged in the groove, a retracting mechanism arranged between the display mechanism and the groove for lifting the displaying mechanism in the groove, and a water drainage mechanism arranged at the periphery wall of the groove. According to the outdoor display device of ideologies and politics, the lifting mode is used for administering self-protection measures during the occurrence of severe convection weather to retract the device into the groove to lower the height. At the same time, a sealed display structure is used for preventing the phenomenon that stagnant water enters the display mechanism, and combined with the inclined ring groove and the ring water seal, the display mechanism can not only retract freely in the groove, but also achieve the automatic water drainage. An emergency protection mechanism is used for implementing further self-protection during the occurrence of severe convection weather to guarantee that the device can achieve intelligent and automatic control after being inducted for once, the personnel maintenance is reduced, and reconstruction investment for the damages caused by the severe convection weather can be lowered.

The invention discloses a packaging box with a height adjusting function. The packaging box comprises a box body and a box cover located at the top of the box body; the packaging box is characterized in that sliding grooves are formed in the two sides of the inner wall of the box body, movably plates matched with the sliding grooves are arranged in the sliding grooves and can move in the sliding grooves, transverse rods are arranged on the side faces of the movable plates, a flat plate is arranged between the two transverse rods, and the transverse rods are both connected with the flat plate; and when the movable plates move in the sliding grooves, the flat plate moves along with the movable plates, grooves are further formed in the sliding grooves, limiting rods are further arranged on the side walls of the movable plates and are connected with the movable plates through threads, the rotating rods are rotated, and the tail ends of the limiting rods can be moved into the grooves. According to the packaging box, the movable plates are pulled, the height of the flat plate can be increased, and therefore objects are easily placed into the box body, and the working efficiency is improved; and meanwhile, the damping function is achieved, and swing of the objects in the transporting process can be reduced.

The invention discloses a tunnel waterproof plate laying trolley which comprises a plurality of trolley portals which are distributed in parallel. The trolley portals are provided with arch rings matched with the inner wall of a tunnel. A climbing mechanism is arranged on every two adjacent arch rings. The climbing mechanisms are installed on the arch rings in a transmission mode through transmission assemblies. A laying assembly and a leveling assembly are arranged on each climbing mechanism. Each climbing mechanism comprises two climbing boxes which are connected to the two corresponding adjacent arch rings in a transmission mode respectively, and a climbing trolley installed between the two climbing boxes, wherein the climbing trolley is installed on the climbing boxes through rotating shafts in a rotating mode. The climbing mechanisms can move in the circumferential direction of the arch rings, in this way, the laying assemblies can be driven to lay waterproof plates along the inner wall of the tunnel, meanwhile the leveling assemblies can level up the waterproof plates laid on the inner wall of the tunnel, it is guaranteed that the waterproof plates laid on the inner wall of the tunnel are closely attached to the inner wall of the tunnel, the laying efficiency of the waterproof plates is improved, and the laying quality of the waterproof plates is effectively guaranteed.

The invention refers to a apical wale lifting gearing, applied in operation table, containing: -a driving worm, connected is a movable crank handle which is rotated by the drive of movable crank handle, this driving worm crank handle-driven warm wheel; -first chain gear, connected with the driven warm wheel; -secondly chain gear, the distance between it and first chain gear- scheduled distance;-spur gear,connected with the secondly chain gear;-vertical scale, meshed to the spur gear, the side of vertical scale is set with a apical wale;-driving-belt, placing in the first and secondly chain gear; drive shaft, a side connected with the first gear;-fourthly chain gear, connected with the other side of drive shaft;-fifthly chain gear, the distance between it and fourthly gear -scheduled distance;-auxiliary driving-belt, connected with the fourthly and fifthly chain gear;-auxiliary spur gear, connected with the fifthly chain gear;-auxiliary vertical scale, meshed to the auxiliary spur gear, one side is connected with the apical wale.

The invention discloses efficient automatic lithium battery riveting equipment which comprises a six-station assembling device fixed on a rack, a table type punch press, a rivet assembling device anda reclaiming manipulator; the reclaiming manipulator is provided with a riveting mechanism in a butt joint manner; the table type punch press, the rivet assembling device and the reclaiming manipulator are arranged around the six-station assembling device; and the riveting mechanism comprises a cover plate placing device, a guide plate placing manipulator, a punching sheet mounting device, a pre-compaction manipulator and an unloading manipulator all arranged around a rotary table device. Through the manner, the efficient automatic lithium battery riveting equipment is compact in structure andsteady in operation, can replace single equipment and manual operation to efficiently and automatically assemble a product and saves the labor force.

The invention discloses a bird nest eliminating device used on a high-voltage tower. The bird nest eliminating device comprises a vertical rod and a grabbing mechanism. The grabbing mechanism comprises a box body, a fixed clamping handle, a movable clamping handle, a telescopic spring and a control mechanism. The movable clamping handle and the fixed clamping handle are respectively arranged at the left end and the right end of the box body. The inside of the fixed clamping handle and the inside of the movable clamping handle are respectively provided with a plurality of cleaning needles. The box body comprises a top board, a left side board, a right side board and a bottom board. The bottom of the bottom board is connected with the upper end of the vertical rod. The fixed clamping handle is connected with the top board. The lower end of the movable clamping handle penetrates through a box body chute and extends into the box body. The telescopic spring is mounted in the box body. The control mechanism comprises a traction rope, a reel, a rocking handle, a hook, a guiding wheel and a pulley. The bird nest eliminating device has advantages of simple structure and convenient operation. Not only can integral stable grabbing and movement of the bird nest for preventing scattering or inclination of the bird nest in the grabbing process be realized, but also the bird nest eliminating device is suitable for integral movement of the bird nests with different sizes. The bird nest eliminating device performs functions of effectively eliminating the bird nests on the high-voltage tower and ensuring normal operation of a power grid.

The method for making a lens with a first convex lens surface (32) and a second lens surface (33) includes feeding a glass melt drop into a concave mold (2, 10), precise pressing both sides of the glass melt drop in the concave mold (2, 10) together with a press die (20) and immersing the press die (20) in the glass melt drop so that a supporting rim (34) with predetermined dimensions, which protrudes beyond a highest point of the second lens surface (33), is formed on the lens by glass material displaced by the precise pressing. The apparatus for precise pressing includes an upper mold part (10) a lower mold part (2) and the press die (20).

The invention discloses a grinding device for a tubular accessory convenient to fix and capable of improving grinding efficiency. The grinding device comprises a base, a cross beam, a rotating shaft,a second connecting spring and an operation table, wherein vertical columns are fixed on the two sides of the left side and the right side of the base, connecting rods are arranged inside the verticalcolumns, and sleeve rods are arranged on the two sides of the left side and the right side of a cross beam, and a second motor is arranged at the top of the cross beam; a rotating shaft penetrates through the cross beam and is connected with the second motor, a grinding disc is fixed at the bottom of the rotating shaft, the top of the second connecting spring is connected with the inner wall of the grinding disc, and the bottom of the second connecting spring is installed with an outer grinding piece; and a gasket is installed on the left side of a third connecting spring, and a protective plate is connected with the upper portion of a sundry collecting box. The grinding device for the tubular accessory convenient to fix and capable of improving grinding efficiency has the beneficial effects that an inner grinding piece and the outer grinding piece are arranged, and the radian direction of the inner grinding piece and the radian direction of the outer grinding piece are consistent, and can be tightly attached and laminated to the inner wall and the outer wall of the tubular accessory; and meanwhile, the tubular accessory can be subjected to grinding treatment at the same time, sothat the grinding efficiency of the device is improved.

The invention discloses a hanging rail robot slope climbing device capable of realizing small-radius turning. The hanging rail robot slope climbing device comprises a rolling wheel, a guide wheel, a slope climbing damping spring, a turning damping spring, an external framework and a guide wheel fixing support frame, wherein the rolling wheel is connected with a transmission shaft; the guide wheelis used for fixing the position of the whole device on a guide rail; the slope climbing damping spring is connected with the guide wheel fixing support frame and the external framework so as to maintain the vertical relative position of the fixed support frame and the guide rail; the turning damping spring is connected with the guide wheel fixing support frame and the external framework so as to maintain the horizontal relative position of the fixed support frame and the guide rail; the hanging rail robot slope climbing device also comprises a gear; the gear is arranged at the transmission shaft of the rolling wheel; the transmission shaft passes through the external framework. A spring turning clamping mechanism is used, so that the stability can be maintained during the turning and the linear walking of the mechanism.

The invention discloses a movable concrete slump testing device. The movable concrete slump testing device comprises a testing tube, a cart, a tamping mechanism, a measuring mechanism and a clearing mechanism, wherein a panel adjustable in height and angle is arranged on the table surface of the cart, has a three-dimensional adjusting capability, and is convenient to level; on the table surface, a first portal frame and a second portal frame are arranged on linear sliding rails; the tamping mechanism is arranged on the first portal frame; the measuring mechanism is arranged on the second portal frame; the clearing mechanism is arranged on the panel, and is matched with a discharge opening in the table surface for use; and a concrete recycling barrel is fixed below the discharge opening. The concrete slump testing cart is applicable for on-site concrete slump test, can adjust the levelness of a test platform according to site adjustment to ensure accuracy of a measurement result as well as a tamping force and a demoulding force, has a more standardized process and provides a support for accurate determination of the concrete slump.

The invention relates to composite plastic pipe fitting forming machining equipment and a forming machining method, the composite plastic pipe fitting forming machining equipment comprises a bottom plate, a clamping device, a distance adjusting device, a cutting device and a driving device, wherein the clamping device is mounted at the upper end of the bottom plate, the distance adjusting device is arranged on the right side of the clamping device, and the distance adjusting device is fixedly connected with the bottom plate. The composite plastic pipe fitting forming machining equipment can solve the problems that when existing equipment is used for cutting a composite plastic pipe fitting, the composite plastic pipe fitting can only be clamped and limited from the uncut end, the composite plastic pipe fitting cannot be limited from the cut end, the composite plastic pipe fitting is prone to being bent under gravity when being about to be cut, the problems that the surface of a notch is uneven, the surface of the composite plastic pipe cannot be cleaned before cutting, stains on the surface of the composite plastic pipe easily affect cutting, the flatness of the notch cannot be kept during cutting, the condition that the notch is inclined easily occurs, and the cutting effect is poor are solved.

The invention discloses a hydraulic control underwater pipeline horizontal docking and locking device and a docking and locking method thereof. The device comprises a locking mechanism, a propelling mechanism and a support mechanism. The locking mechanism comprises a connecting body and a locking device, and the locking device is controlled by hydraulic pressure and can lock or loosen docked pipe joints. The propelling mechanism comprises a pipe joint and a pipe joint outer barrel, at least two sealing cavities can be formed between the outer wall of the pipe joint and the inner wall of the outer barrel, and hydraulic pressure is added into the sealing cavities so that the pipe joint can move to be docked with the connecting body. The support mechanism comprises a support and a clamping supporting base, the clamping supporting base is arranged on the support, the propelling mechanism is lowered to fall into water and can be combined on the clamping supporting base, and accordingly the accurate position of the propelling mechanism can be guaranteed. By the adoption of the device and method, all the mounting processes of the pipe joint can be accurately achieved, so that pipeline docking reliability is guaranteed, and the adverse impact of environmental factors of the outside is reduced.

The invention discloses a farmland spraying device for agricultural use. The farmland spraying device for agricultural use comprises a base; the top of the base is fixedly connected with a connecting rod, a stirring box, a water pump and a fixed frame in sequence from left to right; the top of the stirring box is fixedly connected with a transmission box; the top of the transmission box is fixedly connected with a first motor; an output end of the first motor penetrates to the interior of the transmission box and is fixedly connected with a gear. According to the farmland spraying device for agricultural use, the problems that water and pesticide are required to be mixed manually by a user when the pesticide is sprayed by an existing spraying device and the water and the pesticide cannot be fully mixed because the water and the pesticide are mixed manually are solved by matching the stirring box, the water pump, the transmission box, the first motor, the gear, a gear plate, a sliding block, a sliding groove, a second motor, a movable rod, first stirring blades, a fixed block and second stirring blades; the farmland spraying device for agricultural use has the advantage of uniform mixing, facilitates the use of a user, is good in spraying effect, and reduces the labour force of the user.

A hand-held power tool for rotating a working tool disc (30) includes a removable protection hood (6) for partially covering the working tool disc (30) during operation, and a clamping device (8) for securing the protection hood (6) relative to a power tool head (2) and having a clamping member (12) that limits partially a substantially cylindrical region (14) for receiving an attachment collar, and a clamping element (20) provided at opposite ends (19) of the clamping member (12) for displacing the clamping device (8) into its locking position and having a locking region (34) projecting into the receiving region (14) of the clamping member (12) at least in the locking position of the clamping device (8).

The invention discloses a shock absorption and noise reduction elevator which comprises a channel. A partition plate is transversely and fixedly connected to the interior of the channel. A motor is fixedly connected to the top of the inner wall of the channel, and the motor is located on the top of the partition plate. The output end of the motor is fixedly connected with a belt wheel, and a ropeis wound around the surface of the belt wheel. The end, away from the belt wheel, of the rope penetrates to the bottom of the partition plate and is fixedly connected with a lift car body. The shock absorption and noise reduction elevator solves the problems that in the falling process of an existing elevator lift car, vibration is likely to be generated when the elevator lift car makes contact with a shock absorber, and consequently noise is generated. The shock absorption and noise reduction elevator has the beneficial effects of shock absorption and noise reduction, use of a user is facilitated, and practicability of the elevator is improved.

The invention discloses a method for shock absorption and noise reduction of an elevator. The elevator comprises a channel. The interior of the channel is transversely and fixedly connected with a partition plate, and a motor is fixedly connected to the top of the inner wall of the channel and is located on the top of the partition plate. The output end of the motor is fixedly connected with a belt wheel, and a rope is wound around the surface of the belt wheel. The end, away from the belt wheel, of the rope penetrates to the bottom of the partition plate and is fixedly connected with a lift car body. The method solves the problem that in the falling process of an existing elevator lift car, vibration is likely to be generated when the elevator lift car makes contact with a shock absorber,and consequently noise is generated. The elevator has the beneficial effects of shock absorption and noise reduction, use of a user is facilitated, and practicability of the elevator is improved.