119results about How to "Constant spacing" patented technology

A portable computing device is disclosed. The portable computing device can take many forms such as a laptop computer, a tablet computer, and so on. The portable computing device can include a single piece housing formed from a radio opaque material with a cover formed from a radio transparent material. To implement a wireless interface, an antenna stack-up can be provided that allows an antenna to be mounted to a bottom of the cover. Methods and apparatus are provided for improving wireless performance. For instance, in one embodiment, a metal housing can be thinned to improve antenna performance. As another example, a faraday cage can be formed around speaker drivers to improve antenna performance.

The invention discloses a contact-type reliability test bed capable of conducting mixed loading on an electric main shaft. The test bed is composed of the electric main shaft, a connecting shaft unit, a torque loading device, a radial force electromagnetic loading device, an axial force electromagnetic loading device and a swing arm device. The test bed can load an axial force, a radial force and a torque on the electric main shaft at the same time, control the magnitudes of the three forces in a coordinate mode to simulate cutting forces in different magnitudes and different directions, really and reliably simulate the cutting forces of the electric shaft in practical working conditions, and provide a test foundation for reliability acceleration tests of the electric shaft.

The present invention relates to one adsorbing and rotating reversing device for the production of disposable toilet paper, and provides one transferring and reversing device with stable adsorbing transfer, constant transfer angle and convenient regulation of adsorption number. The transferring and reversing device features the chuck rotating mechanism comprising ring cam seat fixed on the main bearing seat and with spiral cam slot on the ring wall; the hollow chuck shaft with cam arm and cam connected in the lower end; and the hollow shaft below the chuck fixed inside the radial hole of the rotating disc. The device of the present invention can ensure the constant reversing interval, constant adsorbing disc angle, stable adsorption and precise transfer.

The present invention relates to a micro-hotplate device comprising a frame, a membrane, an active area comprising at least one active layer, and a heating structure designed to heat said active layer, said heating structure having concentric tracks and comprising inner tracks (20) and inner spaces (22) and outer tracks (24) and outer spaces (26) as being the one or two tracks and spaces located the furthest away from the center of the heating structure, characterized in that said outer tracks (24) are designed to be located closer to their neighboring tracks and / or are designed to have a width which is lower thanthose of the inner tracks (20), the width and the spacing of said inner tracks (20) being substantially constant.

A catheter assembly for use in radiation therapy of a patient by insertion into a vessel, passageway or cavity to deliver radioactive material to a treatment site within the patient. The distal end of the catheter assembly (10) includes a noncompliant inner balloon (18) therearound that is inflatable with a non-radioactive fluid (such as CO2 or saline or contrast medium), and an outer balloon (16) therearound that is inflated with radioactive fluid (such as radiogas like xenon-133 ) and is noncompliant to conform the vessel wall to the balloon's shape at the treatment site for optimal distribution of dose. The inner balloon allows reduction in volume of the amount of radioactive fluid necessary to achieve a desired dose. The inner and outer balloons (112,108) may be affixed to inner and outer catheters (104,102), respectively. Further, a booster radioactive source, preferably removable from the catheter, may also be used to supplement the dose from the outer balloon, such as a radioactive line source (a wire or a seed train (118,234)) within the central catheter lumen (116,230) at the distal end, or a plurality of seeds (320) within flexible cylinders (318) spaced circumferentially around the inner balloon (308) but within the outer balloon (310), or a sleeve (402) around the inner balloon (406) that may be impregnated with iodine-125. A method of providing radiation therapy is disclosed.

The invention provides a device suitable for multi-terrain automatic tree planting, and belongs to the technical field of tree planting devices. According to the technical scheme, the device applicable to multi-terrain automatic tree planting comprises a frame, a walking component arranged at the bottom of the frame, an earth cutting and drilling mechanism arranged at the front end of the frame, aseedling preparation component arranged at the top of the frame, a seedling preparation driving assembly arranged on the frame and used for controlling the seedling preparation component, and a treeplanting assembly arranged on the rear end of the frame and matched with the output end of the seedling preparation component. The device has the beneficial effects that the device suitable for multi-terrain automatic tree planting is high in automation degree, high in tree planting operation efficiency, high in planting quality, accurate in conveying, good in continuity and high in sapling survival rate.

Disclosed is a structure for precision control of electrical impedance of signal transmission circuit board. A substrate forms thereon a plurality of first signal transmission lines, and a first covering insulation layer is formed on a first surface of the substrate to cover a surface of each first signal transmission lines and each spacing section formed between adjacent first signal transmission lines. Each first signal transmission lines can transmit a differential mode signal or a common mode signal. At least one first flattening insulation layer is formed between a surface of the first covering insulation layer and a first conductive shielding layer so that the first flattening insulation layer fills up the height difference between the surface of each first signal transmission line and the spacing section associated with each first signal transmission line to thereby ensure a consistent distance between the signal transmission lines and the conductive shielding layer for realizing precision control of electrical impedance of the signal transmission circuit board.

A waste water treating device and method based on an electrochemical principle comprises a reaction tank, an electrode A, an electrode B, an electrode fixing strip, an electrode supporting column, a stirring paddle and rotating shafts, wherein the reaction tank is cylindrical; flanges and flange covers are arranged at the upper end and the lower end of the reaction tank; each rotating shaft is mounted in the center of the corresponding flange cover through a bearing; the electrode supporting column is fixed on the flange cover of the lower part of the reaction tank; the electrode A and the electrode B are alternately stacked at the upper end of the electrode supporting column; the stirring paddle is placed between the electrode A and the electrode B; the diameters of center holes of the electrode A and the electrode B are greater than the diameter of each rotating shaft; the center hole of the stirring paddle is matched with the outer diameter of the rotating shaft; one side of the electrode fixing strip is fixed on the inner wall of the reaction tank; and the other side of the electrode fixing strip is clamped in grooves in the periphery of the electrode A and the periphery of the electrode B. The distance between pole plates is adjusted adaptively and is not changed, a bidirectional pulse power supply is used, passivation of the electrodes is prevented, the stirring paddle accelerates migration of ions and air bubbles on the pole plates, and matters attached to the pole plates are removed.

The invention discloses an induction heating method suitable for steel plates with any warping degree. Firstly, a steel plate (2) is moved to an inlet of inductors (8) of an induction heating furnace through a roller bed system (1), displacement sensors (5) located on the upper portion of the front end of each upper inductor (3) are used for detecting the distance between the surface of the steel plate and the sensors and sending a measurement result to an intelligent processing unit; secondly, the intelligent processing unit works out the warping degree of the steel plate and an upper inductor position adjusting mode and sends the warping degree of the steel plate and the upper inductor position adjusting mode to a PLC control system; thirdly, the PLC control system sends adjustment commands to an upper inductor position adjusting system (4), so that the distance between the steel plate and the upper inductors is kept relatively constant; and fourthly, when the steel plate enters the inductors, infrared temperature measuring units (6) mounted at the inlet ends of the upper inductors are used for detecting the temperature of the steel plate, power needed for heating the steel plate to a target temperature is worked out, and an inductor heating system is started to heat the steel plate, so that when the steel plate leaves the induction heating furnace, the temperature of the steel plate reaches the target temperature.

The invention relates to a layer-by-layer heating device for cylindrical bevel gears. The device comprises a heating device, a rotating platform device, a worktable, a lifting device, a vertical powersupply table, a base and multiple infrared temperature measuring cameras; the heating device comprises a profiling induction coil and an induction coil bracket; one end of the induction coil bracketis vertically fixed on the vertical power supply table; the profiling induction coil is fixed at the other end of the induction coil bracket; the profiling induction coil is positioned above the rotating platform device; the rotating platform device is used for fixedly supporting the cylindrical bevel gears; the rotating platform device is mounted on the worktable; the worktable is mounted on thelifting device; the lifting device is fixed on the base; and the vertical power supply table is vertically fixed on the base. The invention further provides a layer-by-layer heating method for the cylindrical bevel gears; the influence caused by the end surface effect is effectively reduced; the depth uniformity of tooth surface hardening layers is improved; and the service life of the cylindricalbevel gears is prolonged.

The present invention relates to the technical field of dosing, in particular to a vertical high-precision powder dosing device with three-axis movement; the dosing device is suitable for the industryof fine chemicals, and the industry of new energy, food and medicine, and includes a frame; a material storage bin is arranged above the frame; a feeding port is arranged at the top of the material storage bin; a discharging port is arranged at the bottom of the material storage bin; the frame close to the discharging port is provided with a door opening and closing mechanism for closing or opening the discharging port; a blanking unit for outputting materials is arranged in the material storage bin; a conveying unit used for conveying a container to the discharging port of the material storage bin is arranged below the material storage bin; a conveying platform used for bearing the conveying unit is arranged on the frame; and a moving jacking unit used for jacking and moving the entire conveying unit from the conveying platform is arranged below the conveying unit. The dosing device of the present invention adopts an internal vertical spiral feeding mode and is combined with an external double-shaft mode of stirring and arch breaking, and the internal and external double shafts are respectively driven by double motors, and thus the structure of the dosing device is independent.

The invention discloses a magnetic ring encoder structure of a brushless motor and the brushless motor, belongs to the field of brushless motors, and aims to improve the detection precision of the angle change of a motor rotor and enhance the low-speed performance of the motor, The magnetic ring encoder structure of the brushless motor comprises a magnetic ring and linear Hall sensors, wherein the magnetic ring is mounted on a rotor shaft in the brushless motor, and at least two linear Hall sensors are arranged and used for sensing the magnetic field change of the magnetic ring. The magnetic ring has a stable magnetic field, the linear Hall sensors can sense the change of the magnetic field to generate signal waves, a computer algorithm can calculate the rotating speed of the rotor shaft according to the numerical values of the signal waves generated by the plurality of linear Hall sensors so as to control the rotating speed of the motor, and the control performance is good.

The invention discloses a suspension armrest which is mounted on a backrest and comprises a gravity assembly and a locking mechanism. The gravity assembly rotates along with the armrest, the armrest is positioned at an inclined position, the gravity assembly unlocks the locking mechanism, the armrest can horizontally rotate and is positioned at a horizontal position, the gravity assembly locks thelocking mechanism, and the armrest is locked at the horizontal position. According to the suspension armrest, the armrest is mounted on the backrest to ensure unchanged distance between the shoulderof the backrest and the armrest, and the armrest can be adjusted to the horizontal position and can be locked when the backrest is at an optional position of a front and back adjustment area, so thata forearm of a passenger can constantly and horizontally lean against the armrest by a proper distance.

The invention provides a cropping working station for a PIN material strap. The cropping working station comprises a cropping mechanism cropping the PIN material strap into separated PINs, a feeding mechanism feeding the PIN material strap to the cropping mechanism, and a PIN distributing mechanism. The PIN distributing mechanism is used for clamping a set number of PINs from the cropping mechanism and distributing the clamped PINs so as to enable the PINs to be distributed according to preset intervals. According to the cropping working station for the PIN material strap, the PIN material strap can be cropped into the separated PINs, the set number of PINs can be distributed so that the PINs can be distributed according to the preset intervals, full automation of the PIN cropping and distributing technology can be achieved, production efficiency is high, the interval accuracy of the PINs is high, and manpower cost is reduced.

The invention discloses a vertical grinding roller sand making machine. The machine comprises a base, a lower shell on the base and an upper shell which is connected with the lower shell and provided with a feed port, wherein a discharge port is formed on one side of the lower shell; a turnplate is arranged in the lower shell, and connected with a power mechanism; a crushing roller is arranged in the upper shell; and the crushing roller and the edge of the turnplate are alternately arranged. By adopting an incomplete bed grinding principle, a material between the crushing roller and the turnplate is instantly crushed by virtue of crushing methods, such as rolling, friction, mutual cutting of materials and the like. The machine has the advantage of simple structure, high loading capacity, high finished product content, low unit energy consumption and high production efficiency.

The invention relates to a quasi-static anti-seismic test loading device with capacity of vertical uniform loading. The device comprises a vertical actuator, a distribution beam connected with the vertical actuator, a horizontal transverse actuator, a connecting beam connected with the horizontal transverse actuator, a loading beam fixing plate, a plurality of screws penetrating the connecting beam and the loading beam fixing plate simultaneously, a rolling bar rail beam with one end fixed to the upper part of the connecting beam and a plurality of rolling bar assemblies, wherein each rollingbar assembly comprises a fixed frame and a plurality of rolling bars which are mounted in the fixed frame and roll in the same direction at constant intervals; steel rails and limiting plates are arranged on two sides of the top surface of the rolling bar rail beam, and anti-separating plates are arranged on two sides of the bottom surface. During operation, the bottom surface of the rolling bar rail beam is placed on the top surface of a loading beam, two side surfaces of the loading beam are located between the anti-separating plates, the plurality of rolling bar assemblies are placed alongthe steel rails and located between the limiting plates, the bottom surface of the distribution beam is pressed on all the rolling bars, and two end surfaces of the loading beam are pressed and fixedby the connecting beam and the loading beam fixing plate through screws. Vertical uniform loading is achieved by the device.

The invention discloses a front suspension rubber cushion for an engine. The front suspension rubber cushion comprises an upper rubber cushion and a lower rubber cushion with the same structure and symmetrically arranged in a mirror upward and downward direction. The upper rubber cushion and the lower rubber cushion comprise an upper framework, a lower framework and a rubber body arranged in the middle, wherein the upper framework and the lower framework are coaxially arranged, the rubber body is of an outer cylindrical inner conical surface structure, and the outer cylinder and the inner conical surface have the same central axis. The diameter of an upper port of the inner conical surface is larger than the diameter of a lower port; the lower framework is embedded in the bottom surface ofthe rubber body and integrally formed through vulcanization, the center of the lower framework is provided with a central sleeve mounting portion for mounting a center sleeve; the upper framework isarranged inside the upper end of the rubber body and integrally formed through vulcanization, the upper framework extends upwards along a central hole and is provided with a protrusion extending out of the surface of the rubber body, and the protrusion is used for being inserted into a mounting hole of a frame side support to prevent radial displacement; and the outer peripheral surface of the rubber body is wrapped with a hoop strap, an upper flange and a lower flange. The front suspension rubber cushion has good noise reduction and vibration damping effect while ensuring the suspension stiffness performance.

The invention relates to a gynecological moxa fumigation device with a moxa stick clamping function. The gynecological moxa fumigation device comprises a bed body, wherein four support legs are fixedto the lower side of the bed body; a cavity is disposed inside the bed body; a plurality of heat outlets are uniformly disposed on the upper side of the bed body and communicates the cavity with the outside; a mounting plate is disposed in the cavity; a height adapting device is disposed between the mounting plate and the inner bottom of the cavity; a plurality of ash trays are evenly arranged onthe upper side of the mounting plate, and are fixedly connected to the mounting plate through bolts; and moxa stick clamping devices are arranged in the ash trays. The gynecological moxa fumigation device has the beneficial effects that the two threaded slide blocks matching a threaded segment on a rotating rod move in opposite directions so that the verticality of a connecting rod is reduced andthe height of the mounting plate is increased; the rotation speed of the motor can be controlled to achieve a basically unchanged distance between the moxa sticks and a human body so as to achieve a moxa fumigation effect; and a support plate is inserted into a clamping sleeve, and supports moxa sticks so as to prevent the moxa sticks from falling.

The invention discloses a welding gun-fixed spindle-shaped wear resisting roller surface overlaying system. The system comprises a roller surface adjusting support column for penetrating through the axis of a grinding roller and fixing the grinding roller; two ends of the roller surface adjusting support column have the same distances from the grinding roller; a support column left mobile hydraulic cylinder and a support column right mobile hydraulic cylinder are respectively arranged at the two ends of the roller surface adjusting support column; piston rods of the support column left mobile hydraulic cylinder and the support column right mobile hydraulic cylinder are upwards vertically arranged, respectively; cylinder barrels of the support column left mobile hydraulic cylinder and the support column right mobile hydraulic cylinder both can linearly and horizontally move; and the upper ends of the piston rods of the support column left mobile hydraulic cylinder and the support column right mobile hydraulic cylinder are respectively hinged with the two ends of the roller surface adjusting support column. The welding gun-fixed spindle-shaped wear resisting roller surface overlaying system can automatically adjust the gesture of the grinding roller through equipment to match with overlaying equipment, so that the labor intensity of operators is reduced, and the production safety is improved.

The invention discloses a tunnel cable ditch and water ditch construction trolley and a construction method thereof. The tunnel cable ditch and water ditch construction trolley comprises a main trusswith a walking mechanism. The walking mechanism comprises a driving portion and a driven portion with a steering function. Hanging devices capable of driving die sets to rise and fall up and down andhorizontally move are mounted on the outer sides of vertical columns on the two sides of the main truss, and the hanging devices are connected with the die sets capable of being used after being positioned through suspension mechanisms. Each trolley can be provided with the multiple die sets with the lengths of 12 m, each die set is composed of multiple die plate sets and multiple positioning frames, after the die sets are hoisted to designated positions through the trolley, the trolley can be separated from the die sets, and hoisting work of the other die sets is carried out. Die plates are adjusted to accurate positions by the die sets through adjusting mechanisms of the die sets, so that assisting of the trolley is not needed. The trolley is convenient to use, cycle operation of the multiple die sets can be achieved, the trolley is used for construction of tunnel cable ditches and water ditches, the construction period of the water ditches and the cable ditches is shortened, and theworking efficiency is improved.

A 3D memory device and a manufacture method thereof are disclosed. A 3D memory device include a substrate; A laminated structure on the substrate, the laminated structure comprising a plurality of alternately stacked conductor layers and a plurality of insulating layers; A plurality of memory strings running through the laminated structure; An electrically conductive contact extending through thelaminated structure; Wherein the conductive contact is in a polygonal line shape in a first direction perpendicular to the plurality of memory strings. The present invention employs conductive contacts through a laminated structure in a polygonal line shape in a first direction perpendicular to the plurality of memory strings. The conductive contacts extend along the array direction of the memorystrings, thereby reducing the warping deviation of the wafer in a plane perpendicular to the memory strings under a high stack and reducing the distance the metal layer is filled when the conductor layer is formed.

The invention discloses an LED lamp radiator which comprises a base for installing a light source. A plurality of heat conducting pieces are arranged on the base. The heat conducting pieces are in a U shape. Two U-shaped arms of each heat conducting piece are each provided with a radiating fin. The multiple heat conducting pieces are arranged at intervals into a row, so that the radiating fins on the two U-shaped arms of the heat conducting pieces are arranged at intervals to form two columns of radiating fin sets. Meanwhile, the two columns of radiating fin sets are each provided with a fixing device for keeping the distance between every two adjacent radiating fins to be fixed. According to the structure, heat can be better radiated from the radiating fins of the two columns of the radiating fin sets to the external environment, and the radiating performance of the radiator is greatly improved.

The invention provides a shielding cover, a circuit board assembly and electronic equipment. The shielding cover comprises a cover body, wherein the cover body and a circuit board jointly enclose a shielding region, and at least part of components on the circuit board are covered in the shielding region. The components located in the cover body comprise a first device, the first device has a step face facing the cover body, a reinforcing part is arranged in the region, corresponding to the step face of the first device, of the cover body, at least part of the structure of the reinforcing part is located in the region, right facing the step face, of the cover body, the space formed above the step face of the first device is utilized, the reinforcing part is additionally arranged to increase the strength of the cover body, the surrounding region of the part corresponding to the step surface on the cover body is prevented from collapsing, and the stability and reliability of the shielding cover are improved. Moreover, the distance between the first device and the adjacent components is kept unchanged or the increase of the distance between the first device and the adjacent component is reduced, so that the circuit board can keep a densely arranged layout structure, the component layout area of the circuit board is saved, and the space utilization rate of the circuit board is improved.

The invention discloses a compressor and a refrigerating device with the same. The compressor comprises a shell and a plurality of metal sheets. The shell is provided with an exhaust port. The multiple metal sheets are arranged on the peripheral wall of the shell, and the inherent frequencies of at least two metal sheets are different. According to the compressor disclosed by the embodiment of the invention, the multiple metal sheets are arranged; when the compressor operates, vibrations generated by the compressor can be transmitted to the multiple metal sheets on the peripheral wall through the shell; under the vibration action, the multiple metal sheets can be elastically deformed, vibrational kinetic energy caused by the compressor can be consumed away through elastic deformation of the multiple metal sheets, and therefore the damping effect can be achieved, the phenomenon that the vibrations generated by the compressor are transmitted onto sheet metal parts can be prevented, and working noise of the compressor can be reduced; and due to the fact that the inherent frequencies of the at least two metal sheets are different, the width of the vibrational frequencies absorbed by the metal sheets can be increased, and the damping effect of the metal sheets is improved.

The invention provides a fabrication method of a grooved vertical double diffusion metal oxide semiconductor (VDMOS). The method comprises the following steps of depositing a hard mask layer on an N-type epitaxial layer; photoetching and etching an intermediate region in the hard mask layer to form a first groove window region; etching a lower-side region of the first groove window region, and forming a first groove in the N-type epitaxial layer; growing P-type epitaxy in an upper surface of the hard mask layer, the first groove window region and the first groove; removing the P-type epitaxy in the upper surface of the hard mask layer, the hard mask layer and the P-type epitaxy in the first groove window region by a chemical mechanical polishing process so as to form a P-type ion region in the first groove; respectively forming second grooves in partial regions at two sides of the P-type ion region in the N-type epitaxial layer; forming a grid oxide layer on an upper surface of the N-type epitaxial layer and a surface in the second groove; depositing a poly-silicon layer on the grid oxide layer in the second grooves; and forming a body region, a source region, a dielectric layer and a metal layer of the grooved VDMOS.

The invention discloses an anti-interference section laser scanning imaging device for rail line fault diagnosis, and relates to the technical field of rail line section laser scanning imaging, in particular to a foundation, a stock rail, a mounting sliding seat, an imager shell, a protective plate and a sealing plate. A stock rail is connected to the upper surface of the foundation through bolts,the installation sliding base covers the outer side of the upper portion of the stock rail, a matching groove is formed in the lower portion of the sliding groove, profiling cotton adheres to the inner side of the sliding groove, the imager shell is arranged on the outer side of one side of the upper edge of the installation sliding base, and the protection plates are installed on the two sides of the imager shell respectively. The sealing plate is arranged on one side of the bottom edge of the imager shell. The anti-interference section laser scanning imaging device for rail line fault diagnosis is easy to install, fix and disassemble, can realize sealing, can perform rapid scanning corresponding to the section of the rail, and cannot be damaged by clamping and pressing due to dead weight when being installed on the rail.

The invention discloses a device and a process for hot working of small-batch multi-specification camshafts, and belongs to the field of camshaft heat treatment. The device comprises a steel frame anda workbench, wherein two lifting devices are symmetrically arranged on the steel frames located on the two sides of the workbench, a rotary platform device is arranged on the workbench, the camshaftis movably connected in the rotary platform device, a cam is arranged on the camshaft, the lifting devices are correspondingly connected with telescopic rods, the tail end of one telescopic rod is connected with a peach tip induction coil, the tail end of the other telescopic rod is connected with a base circle induction coil, an isolation plate is arranged between the peach tip induction coil andthe base circle induction coil, and the workbench is provided with a PLC which is electrically connected with the lifting devices and the rotary platform device correspondingly. According to the device for hot working of the small-batch multi-specification camshafts and the process adopting the device, the quenching temperature and the depth of the hardened layer after quenching of the peach tippart of the cam are correspondingly same as the quenching temperature and the depth of the hardened layer after quenching of the base circle part of the cam, and the cams with different specificationscan be continuously heated.

A humidifying and air-cleaning disc and a disc assembly are provided to contain a large amount of water for a long time, thereby improving the humidification performance of the disc, by forming ribs on a surface of a disc body in a radial shape and protruding stoppers from the ribs in a tangential direction. A humidifying and air-cleaning disc(200) comprises a plate type disc body(210), ribs(220) formed on a surface of the disc body in a radial shape, and stoppers(223) respectively protruded from the ribs in a tangential direction. Each of the ribs includes a curve portion(221) curved oppositely to a rotation direction, and a bent portion(222) bent oppositely to a rotation direction between the curve portion and the stopper.