518results about How to "Change width" patented technology

It is possible to change a shaving area width that can be shaved at a time in accordance with a shaving portion, and to swiftly cut hair. The shaver includes a plurality of outer blade frames which hold a blade block for cutting hair. The outer blade frames are arranged in a direction Y intersecting with a moving direction X of a movable blade of the blade block. At least one of the outer blade frames can slide in the moving direction X of the movable blade from an initial position. The shaver has a fixing unit which fixes the outer blade frame at a sliding position.

A mattress for a hospital bed is provided. The mattress includes an encasing enclosing a compressible mattress portion and a rigid mattress portion. The compressible mattress portion has an integral construction extending from a head end of the bed to a foot end of the bed. The rigid mattress portion contracts from a first elongated position to a second retracted position, and the rigid portion contracting the compressible mattress portion therewith. The rigid mattress portion may be provided at any side or end section of the mattress. Accordingly, the width or length of the mattress can be modified.

In a plasma display device comprising a pair of opposing insulating substrates and a plurality of light emitting cells 5 formed from partition walls which divide the space between the insulating substrates while a plurality of electrodes are formed in the light emitting cells 5 and the inner space is filled with a discharge gas and plasma being generated by applying a voltage selectively between the electrodes so that the fluorescent substances 4 formed on the inner walls of the light emitting cells emit light as light emitting elements, wherein sizes of the light emitting cells 5 of different colors are made different according to the luminance of the fluorescent substance of the corresponding color. That is, cells which emit light of a color of luminance lower than the other cells are made with larger opening to obtain equally high luminance for all the three primary colors, thereby mitigating the deviation in the luminance among the fluorescent substances and achieving full-color display of high image quality with high color purity.

The magnetic material for magnetic refrigeration of the present invention is characterized by exhibiting, in a certain temperature region, preferably, only in part of a temperature region from 200 K to 350 K, an inflection point at which a second order differential coefficient of a magnetization curve changes from positive to negative with respect to a magnetic field, within the range of this magnetic field formed using a permanent magnet unit. This magnetic material of the present invention can generate a low temperature by using a relatively low magnetic field, by transferring the entropy between the electron spin system and the lattice system near the temperature at which an inflection point appears on the magnetization curve. Examples of the magnetic material meeting this condition are La(Fe,Si)₁₃, (Hf,Ta)Fe₂, (Ti,Sc)Fe₂, and (Nb,Mo)Fe₂, each containing 50 to 60 atomic % of transition metals such as Fe.

An optical device includes a substrate and an optical rib waveguide structure formed of a slab and a rib. A vertically-oriented P-N-P or N-P-N dual-junction diode is formed inside the rib waveguide, including a first doped region, a second doped region and a third doped region electrically connected to the first doped region, where two P-N junctions are formed at the boundaries of the first and the second doped regions, and the second and the third doped regions, respectively. The depletion regions of the two junctions are substantially in the center of a guided optical mode propagating at the core region through the rib waveguide. The optical device further includes a first metal contact and a second metal contact in electrical contact with the first doped region and the second doped region, respectively.

The invention discloses an anti-impact flexible joint suitable for a mechanical arm, and belongs to the technical field of robots. An output end cover is fixedly connected with a joint output end shell and a series connection elastic body, and a limiting block is fixedly connected with the series connection elastic body. A first joint position magnetic encoder is fixed to the part between the output end cover and a first magnetic ring fixing frame. A harmonic reducer is fixedly connected with a joint output end shell. A connecting flange plate is fixedly connected with the series connection elastic body. A motor center shaft is fixedly connected with the harmonic reducer and fixedly connected with a brake disc. A motor position magnetic encoder is fixed to the part between a third magnetic ring fixing frame and a power-off brake shell. A first silicon steel sheet is fixedly connected with the joint input end shell. A second silicon steel sheet is fixedly connected with the power-off brake shell. The power-off brake shell is fixedly connected with the joint input shell and a power-off brake end cover. An electromagnet is fixed into the power-off brake shell. A spring ring is arranged between the power-off brake shell and a friction disc, and a friction column is fixedly connected with the brake disc. The anti-impact flexible joint is used for a robot and the mechanical arm.

The invention relates to the technical field of unmanned remote measuring and provides a quick disassembling and assembling shallow diving line type unmanned ship which comprises a main hull, two shallow diving line type floating body modules, two underwater power propulsion modules, and an instrument carrying and central control module which are connected through a rotatable and slidable combined connecting device which has the function of rotation, flexibility and translation. The quick disassembling and assembling shallow diving line type unmanned ship has the advantages that the big quality water surface unmanned ship which has powerful capacity of resisting wind waves and larger bearing capacity is decentralized, the requirements of convenient transportation are met, what is more important is that the easy and accurate adjustment of the centre of gravity and buoyancy of the ship can be realized according to different water area working conditions and the changeable loading conditions, the sailing optimized posture of the hull is guaranteed, and the requirements of carrying various instruments and equipment and normal operation on the unmanned ship are met.

The invention discloses a walling machine. The walling machine comprises a brick masonry device, a brick conveying mechanism, a mortar conveying mechanism, a piled brick moving device, a machine frame and a control system, wherein the machine frame is provided with a universal truckle and comprises bottom beams, an upper beam, lifting stand columns and machine frame stand columns; a lifting beam is arranged between the lifting stand columns; the brick masonry device is hung on the lifting beam through a double-rail geneva wheel; the brick conveying mechanism is arranged between the machine frame stand columns; the piled brick moving device is arranged between the bottom beams; a mortar pressure pump of the mortar conveying mechanism is arranged on one side of the machine frame; the mortar conveying mechanism is connected with a mortar nozzle on the brick masonry device through a mortar conveying pipe; and the brick conveying mechanism is spatially opposite to the piled brick moving device and the brick masonry device mutually. The width of the walling machine body can be changed with the change of the wall width, and the machine frame has the high stationarity and fastness, so the walling machine has the high practicability.

The invention relates to the field of ancient building restoration technical equipment, in particular to an ancient building restoration bracket which comprises a plurality of stairs composed of stair telescopic rods and stair rods, a plurality of perpendicular telescopic rods, a hydraulic controller and a base. The hydraulic controller is arranged on the upper surface of the base. The side face of the hydraulic controller is provided with an elongation control button and a shortening control button. The top of the hydraulic controller is provided with a plurality of hydraulic pipes, and the other ends of the hydraulic pipes communicate with hydraulic rods. The perpendicular telescopic rods are arranged on the upper surface of the base. The upper potions and the lower portions of the perpendicular telescopic rods are symmetrically provided with the hydraulic rods. The outer ends of the hydraulic rods are connected with fastening plates which are internally provided with correction plates in a clamped mode. The lower portions of the stair telescopic rods are provided with connecting racks. Adjustment telescopic rods are connected and arranged between the connecting racks and the perpendicular telescopic rods. First connecting shafts are symmetrically arranged on the inner sides of the tops of the stair telescopic rods. The stair telescopic rods and the perpendicular telescopic rods are connected through the first connecting rods. The ancient building restoration bracket is good in supporting effect and convenient to carry and use.

A self-orientation conveying slicing machine for Chinese-date comprises a framework, a motor mounted on the framework, a left chain wheel and a belt wheel. The left chain wheel and the belt wheel are connected through a transmitted chain, a roller is mounted on the transmitted chain and the motor is connected with the belt wheel through a transmission belt of the motor. The upper part of the leftchain wheel is provided with a hopper, and a rolling brush is arranged at a lower end of the hopper. An adjustable guard board is arranged outside of the right end of a transmission device consistingof the left chain wheel, the transmitted chain and the belt wheel. A gullet-type feed table connected with the belt wheel through the transmission belt of the belt wheel is disposed at a lower end ofthe belt wheel, and a row of steel wires is arranged at a side face of the gullet-type feed table and fixed on the framework. Utilizing roll chain-type conveying, the invention achieves orientation and delivery of the Chinese-date, and leads the Chinese-date to move to the right end of a conveyor. The Chinese-date is moved downwards to the gullet-type wheel-type feed table through the adjustable guard board and cut into slices by a row of steel wires to form a concentric ring sheet shape, so as to integrate orientation and slicing.

The invention relates to a multifunctional stair cleaning robot, in particular to a multifunctional stair cleaning robot with capacity of automatic adjustment as well as stairclimbing and stair cleaning methods corresponding to the robot. The multifunctional stair cleaning robot comprises a base staggering mechanism, a front base, an electronic control mechanism, a rear base, a power supply system, interlacing shaft telescoping mechanisms, a cleaning mechanism and a base telescoping mechanism. On the basis of the pendulum principle, the stairclimbing and stairs-down actions of the robot are simulated, the mechanical structure is simple, and implementation is easy. The multifunctional stair cleaning robot can be suitable for stairs with different widths, and the adaptive capacity of the robot is enhanced. By means of a present widely applied ZigBee wireless module, the cooperative matching effect of the front base, the rear base and the interlacing shaft telescoping mechanisms is realized, and the efficiency is higher. The climbing adaptability to the stairs with different widths can be realized, and the practicability is greatly improved.

The invention relates to an icebreaker which comprises an icebreaker body and further comprises an icebreaking device and an auxiliary icebreaking device which are arranged on the icebreaker body. Theicebreaking device comprises a roller icebreaking device which is mounted at the front end of the stem of the icebreaker and a power mechanism which is mounted inside the stem of the icebreaker and suitable for supplying power to the roller icebreaking device; the roller icebreaking device comprises a primary roller assembly arranged in the middle of the front end of the stem of the icebreaker and secondary roller assemblies arranged on the left side and the right side of the primary roller assembly; the primary roller assembly comprises a main mechanical arm connected with the power mechanism, a main mounting guide rail rotatably connected to the front end of the main mechanical arm and a pair of main rollers arranged on the main mounting guide rail; the auxiliary icebreaking device is mounted above the roller icebreaking device and comprises a supporting rod mounted at the upper end of the main mechanical arm and a microwave heater arranged at the front end of the supporting rod; and the supporting rod is arranged in parallel with the ice surface and stretches out of the main rollers forwards, and the microwave heater is located above the ice surface and does not make contact with the ice surface.

The invention relates to a permanent magnet coupling mechanism between shafts. The permanent magnet coupling mechanism between the shafts is used for transmitting torque between the two rotating shafts. The mechanism comprises a permanent magnet rotor and a conductor rotor, wherein a conical air gap is formed between the permanent rotor and the conductor rotor. A permanent magnet on the permanent magnet rotor comprises main magnets and auxiliary magnets. The multiple main magnets are circumferentially distributed. A magnetizer made of permeability magnetic materials is arranged between every two adjacent main magnets. One auxiliary magnet is arranged on one side, away from the conductor rotor, of each magnetizer. The directions of the magnetic poles of the main magnets are located in the circumferential direction of the permanent magnet rotor. The directions of the magnetic poles of the adjacent main magnets are in the face-to-face direction or the back-to-back direction. The directions of the magnetic poles of the auxiliary magnets are the radial directions of the permanent magnet rotor. The directions of the magnetic poles of the adjacent auxiliary magnets are opposite. The magnetic poles of the positions of the side faces where the two main man magnets and one auxiliary magnet are contacted with the same magnetizer are respectively the same polarity. The permanent magnet coupling mechanism between the shafts is large in transmitting torque, adjustable in transmitting torque, compact in structure, convenient to install, and stable and reliable in transmission and adjustment.

The invention discloses a multi-functional roller-shear mechanism which comprises a bed body, a left supporting frame and a right supporting frame, wherein the left supporting frame and the right supporting frame are arranged on the bed. An upper cutter shaft and a lower cutter shaft are arranged between the left supporting frame and the right supporting frame. Upper shear blades and lower shear blades are arranged on the upper cutter shaft and the lower cutter shaft. Through adjustment of screw rods and gaskets, changes of distance between the shafts and axial distance are achieved. Through replacement of groups of the gaskets, the group number of the shear blades can be adjusted according to requirements. Therefore, the situation that the number of machined wattles is changed is achieved, and then widths of the wattles are changed. Through a hard friction plate and a side roller-shear cutting method, burrs of sheet material are removed. A machine tool can be protected, and the quality of subsequent machining of cut semi-finished wattles is guaranteed. A cooler is arranged in the position of a cutting edge, the service life of a cutter can be prolonged and the machining quality is guaranteed. In brief, the multi-functional roller-shear mechanism can effectively improve production efficiency, more economical benefits are obtained and the product quality is guaranteed.

The invention discloses an efficient pulverizer for ceramic production. The efficient pulverizer for ceramic production comprises a first pulverizing cavity, a pulverizing roller and a hydraulic cylinder, wherein the outer wall of the first pulverizing cavity is covered with an electric heating layer, the upper side of the first pulverizing cavity is connected with a feeding funnel, a first rotary shaft is vertically arranged at the axis position of the inside of the first pulverizing cavity, screw blades are evenly arranged on the outer wall of the first rotary shaft, an air outlet pipe is horizontally arranged at the left end of the outer wall of the lower side of the first pulverizing cavity, and the left end of the air outlet pipe is connected with an exhaust fan. The efficient pulverizer for ceramic production integrates material pulverizing and drying functions, ensures the quality of processed finished products and fully pulverizes materials through two pulverizing mechanisms, an oblique pulverizing gap enables pulverizing time to be long and enables pulverizing to be sufficient, the material pulverizing effect is ensured, the size of pulverized material particles can be controlled, practicability is high, dehumidification is performed in the drying process through a drying device, drying efficiency is improved, noise in the working process of the efficient pulverizer is small, and a working environment of an operator is improved.

A method for contactless capacitive thickness measurement of a flat material (10) that is placed in the fringe field (32) of a capacitor (C1, C2), with simultaneous measurement of the width L of an air gap (16) between the flat material and the capacitor plates, characterised in that the capacities gL, kL of two capacitors (C1, C2) are measured whose fringe fields (32) decay at different rates towards the flat material (10), and in that both, the thickness D of the flat material (10) and the width L of the air gap (16) are determined on the basis of the condition that, for each capacitor (C1, C2), the measured capacity gL, kL is equal to the integral of the capacity gradient g', k' over the thickness of the flat material (10).

The invention discloses a method for realizing laser cleaning based on light beam peripheral scanning. Similar parallel light beams are irradiated to a rotary reflecting lens; the rotary reflecting lens is driven to rotate by a motor; and focal spots form a scanning trajectory to realize peripheral scanning. The invention further discloses a device for realizing laser cleaning based on light beamperipheral scanning; the device comprises a motor and the rotary reflecting lens; the lower end of the motor is connected with the rotary reflecting lens capable of rotating; the similar parallel light beams can be irradiated to the rotary reflecting lens; the reflected light beams are reflected by the rotary reflecting lens; and when the motor is rotated, the light beams reflected by the rotary reflecting lens form the scanning trajectory to realize peripheral scanning. The method and the device are uniform in scanning, high in cleaning efficiency, low in cost, long in life, low in mass, portable, simple and stable in overall structure and easy to realize.