55results about How to "No need to change size" patented technology

The invention relates to an electric thruster, in particular to a multistage cusped magnetic field plasma thruster with a channel magnetic field guide structure, so as to solve the problems that magnetic field configuration of an existing thruster and the position of a magnetic mirror tip cannot be adjusted conveniently according to section changes of a discharge channel, the angle of a magnetic interface at the magnetic mirror tip is not easy to adjust, and a samarium cobalt permanent magnet material for variable cross-section experiments is long in processing cycle and high in cost. The plasma thruster comprises a ceramic bushing, an engine casing, four permanent magnets, five magnetic-conducting rings and five non-magnetic-conducting matching rings, the permanent magnets are round permanent magnets and arranged sequentially from top to bottom, the ceramic bushing is arranged among the four permanent magnets, the large-diameter port of the ceramic bushing faces upwards, the four permanent magnets are clamped together through the engine casing; the five magnetic-conducting rings are a first magnetic-conducting ring, a second magnetic-conducting ring, a third magnetic-conducting ring, a fourth magnetic-conducting ring and a fifth magnetic-conducting ring respectively. The plasma thruster is applied to the field of spaceflight.

The invention relates to a microstrip antenna element with a controllable directional diagram. Dielectric slabs which are stacked up in two layers are used; the microstrip antenna element is etched on the surface of a first dielectric slab; the upper surface of a second dielectric slab consists of a metal ground and EBG (electromagnetic band gap) metal chips, and the lower surface of the second dielectric slab is the complete metal ground; the EBG metal chip passes through a dielectric substrate through a metal through hole and is connected with the complete metal ground; the EBG metal chips are positioned at the second dielectric slab and arranged in a matrix shape; and each EBG metal chip is square, the length of a side is 0.11 to 0.13 lambda, a space between the two adjacent metal chips in a horizontal direction is 0.01 to 0.03 lambda, and a distance between the two adjacent metal chips in a vertical direction is 0.02 to 0.26 lambda. The microstrip antenna element with the controllable directional diagram is simple in a technical scheme, high in measuring accuracy and convenient to process.

The invention relates to a transmission electron microscope sample rod capable of performing 360-degree rotation on a sample. The sample rod is connected with a sample clamp, and a sample is clamped on the sample clamp. The sample rod comprises a hollow shell and a rotating shaft installed in the shell, wherein the rotating shaft and the shell are provided with a pair of bearings therebetween, andthe rotating shaft is provided with a rotation driving mechanism used for driving the rotating shaft to perform autorotation; the rotating shaft is composed of a rigid rod and a piezoelectric ceramictube, the bearings are arranged on the rigid rod, and the piezoelectric ceramic tube stretches out and draws back along the X-axis, Y-axis and/or Z-axis and swings by taking the X-axis and/or the Y-axis as a center, and one end of the piezoelectric ceramic tube is fixed with the rigid rod; the other end of the piezoelectric ceramic tube is fixedly provided with a hard ball; and the sample clamp is suspended on the hard ball through a flexible screw claw, the flexible screw claw is arranged in a circumferential array mode along the sample clamp, one end of the flexible screw claw is fixed withthe sample clamp, and the other end forms a contraction port and is suspended on the hard ball. The transmission electron microscope sample rod has the advantage of being capable of realizing 360-degree rotation of a sample without a need of changing the structure of the existing transmission electron microscope.

A rigidity-improved spherical hinge comprises a rubber layer, a mandrel and an outer cover. Outward-protruding circular-arc sections protruding towards the outer side are arranged on the two sides of a main circular-arc section of the periphery of the mandrel, the circular-arc radius of the outward-protruding circular-arc sections is smaller than that of the main circular-arc section, and inward-concave circular-arc sections concaved towards the inner side are arranged on the outer sides of the outward-protruding circular-arc sections. The outward-protruding circular-arc sections protruding towards the outer side are cut on the two sides of the main circular-arc section of the mandrel, the inward-concave circular-arc sections concaved towards the inner side are cut on the outer sides of the outward-protruding circular-arc sections, and thus the structure of the rubber layer vulcanized on the mandrel is changed accordingly. The rigidity of the spherical hinge is improved by changing the structures of the mandrel and the rubber layer in the spherical hinge. The dimension of an opening of the spherical hinge is increased due to the outward-protruding circular-arc sections and the inward-concave circular-arc sections; besides, the main circular-arc section, the outward-protruding circular-arc sections and the inward-concave circular-arc sections are in smooth transition so that the strain of the rubber layer can be effectively reduced, and thus the anti-fatigue performance and the stability of the product can be improved.

The invention, which belongs to the technical field of photonic crystal fibers, particularly relates to a hollow-core anti-resonance optical fiber polarization filter comprising a fiber core region and a cladding region. The fiber core region is a vacuum region; and the cladding region coats the outside of the fiber core region. The cladding region includes an inner cladding and an outer claddingwrapping the inner cladding; the inner cladding is formed by an annular ring formed by equal-interval distribution of a plurality of capillary tubes. The capillary tubes distributed in the y-axis direction are filled with metal and other capillary tubes are not filled with metal in the annular ring formed by the capillary tubes of the inner cladding. When the fiber core mode and the SPP mode meetthe phase matching condition, resonance coupling, that is, a surface plasmon resonance effect is made. The designed metal filling type hollow-core anti-resonance optical fiber has the good polarization filtering function in a communication waveband and the low-loss integration with the hollow-core anti-resonance optical fiber is realized, so that the application field of the hollow-core anti-resonance optical fiber is further widened.

Through making intervals among acicular terminal portions be equal to intervals among terminals of a universal connector, a miniaturization butting connector with versatility is provided. The butting connector (1) comprises a terminal (3) possessing a ferrite core (10) and a connector shell (5) which accommodates the terminal (3). The terminal (3) comprises a busbar (28) and a plurality of acicular terminal portions (29) which are extended from the busbar as a certain interval and are along a length direction of the busbar (28). The ferrite core (10) comprises first ferrite cores (10a) arranged on base ends (29a) of the acicular terminal portions (29) and second ferrite cores (10b) arranged on middle portions (29b) of the acicular terminal portions (29). The first ferrite cores (10a) and the second ferrite cores (10b) are alternately arranged on the plurality of acicular terminal portions (29).

The invention relates to a flexible circuit board which comprises a flexible substrate, a first wiring network and a second wiring network, wherein the first wiring network is used for receiving a driving signal; the second wiring network is used for transferring and sensing an electric signal; the first wiring network is arranged on one surface of the flexible substrate; the second wiring network is arranged on the other surface of the flexible substrate and is opposite to the first wiring network; and a plurality of capacitance coupling nodes are formed between the first wiring network and the second wiring network. The invention also relates to a touch device using the flexible circuit board.

The invention discloses a cargo moving device and a method for storing and picking cargo. The cargo moving device includes a cargo carrying frame, a pallet, traction members and hook-picking members.The traction members are each in a ring shape, and sleeve the cargo carrying frame. The hook-picking members include clamping hooks and connecting columns. The connecting columns are fixedly connectedwith the traction members, and the clamping hooks are fixedly arranged on the side wall of the pallet; or the clamping hooks are fixedly connected with the traction members, and the connecting columns are fixedly arranged on the side wall of the pallet. The cargo moving device is conducive to saving space, and extra space does not need to be reserved as a safety margin, so the space utilization rate is high.

This invention provides a catalytic decomposition equipment of discharging oil smoke of oil smoke machine. Catalytic oxidation reactor is electric heating room and catalytic oxidation room one body vertical structure. It is consisted by catalytic oxidation pipe, electric heating inner pipe, outlet duct, reflow device, electric heating switch and catalyst. Catalytic oxidation pipe is thin wall metal pipe, it is pushed-in air exit as drawer type, electric heating inner pipe close cling to inner wall of catalytic oxidation pipe, oxidation catalyst is filled in electric heating pipe, electric heating switch is set at top part of electric heating inner pipe, reflow device is at front part of electric heating reactor, outlet pipe is at back part of catalytic reactor. The structure is compact, blower fan is used to degas, the power source is used to heat, oil smoke can be high efficiency and low temperature catalytic processed by the heating to gas when cooking. There is no secondary pollution and low consumption and energy saving.

The invention discloses a dielectric waveguide filter and a tuning method thereof. The dielectric waveguide filter comprises: a dielectric block comprising a plurality of regions, wherein each regionis one resonator, at least one resonator has a through hole, the dielectric block has a first surface and a second surface which are opposite, the through hole penetrates the first surface and the second surface; the through hole is configured to regulate the frequency of the resonator where the through hole is located; and a first port and a second port which are arranged at the first surface, wherein the first port and the second port are arranged at the surfaces of different resonators, one of the first surface and the second surface is used as an input end, and the other one thereof is used as an output port. According to the technical scheme, the shape rules of the dielectric waveguide filter reduces the manufacturing process difficulty with no need for changing of the size of the dielectric block.

The invention discloses a tuned particle mass damping device based on suspension, and relates to the technical field of damping vibration attenuation. The tuned particle mass damping device comprises a mass system, a stiffness system and a damping system which are arranged in a shell; the mass system at least comprises a particle mass block; the stiffness system is a suspender or a sling, and the mass system can swing in the shell by taking the suspender or the sling as a swing rod or a swing rope; the damping system involves a damper and a collision damping support, wherein the collision damping support is arranged on the swing stroke of the mass system and can horizontally limit swinging of the mass system, and the collision damping support comprises a support and a viscous-elastic material layer, wherein the viscous-elastic material layer is arranged on the inner side of the support and is vertically arranged in the shell to receive collision of the mass system. According to the damping device, a hybrid vibration attenuation mechanism is good in vibration attenuation and energy consumption effect, wide in vibration attenuation frequency band and good in sensitivity, the continuous frequency adjustment can be achieved, and the adjustment is convenient and easy.

The invention discloses a large-depth-of-field flat lens for air imaging. The large-depth-of-field flat lens comprises an optical waveguide array structure, wherein the optical waveguide array structure comprises dihedral angle reflectors arranged in a plurality of rows and a plurality of columns, and the heights of the dihedral angle reflectors are reduced from the center to the edge of the optical waveguide array structure in the column direction. The invention further discloses an air imaging system. The air imaging system comprises a light source and a flat lens, wherein the flat lens is any one of the large-depth-of-field flat lenses for air imaging. The large-depth-of-field flat lens has the advantages that the heights of the dihedral angle reflectors are reduced from the middle to the edge in the column direction, a slit optical waveguide structure is formed, light is subjected to optical imaging through a slit, the spherical aberration is smaller, the imaging depth of field islarger, the imaging definition is effectively improved, the highest height of the dihedral angle reflector can be consistent with that of an original dihedral angle reflector, and accordingly, the large-depth-of-field flat lens can be directly replaced with an original air imaging device for use without changing the size of an existing flat lens.

The invention provides a plasma excimer and exciton structure and a preparation method and purpose thereof. The plasma excimer and exciton structure comprises metal nanoparticles and a dye layer adsorbed on the metal nanoparticles, and the metal nanoparticles include annular and/or disc-shaped metal nanoparticles. The preparation method comprises that the metal nanoparticles are mixed with a dye solution, and kept standing away from light, solid is separated from liquid, and the obtained solid is the plasma excimer and exciton structure. The provided plasma excimer and exciton structure can beused for manual light harvesting, threshold-free laser or quantum information processing. The plasma excimer and exciton structure is wide in the plasma field distribution range and has a strong coupling effect; and the preparation method is mild in condition, simple in operation, high in repeatability, capable of realizing large-scale production and free of pollution.

The invention discloses a movable multilayer parcel storage system for community service, and relates to the field of parcel storage equipment. The movable multilayer parcel storage system comprises a square cabinet body and a cabinet door. The cabinet body comprises an outer shell and an inner shell, wherein the outer shell sleeves the inner shell and is made of stainless steel, and the inner shell is made of rubber. The space between the outer shell and the inner shell is filled with a sponge layer, a partition plate is arranged in a cavity enclosed by the inner shell and divides the cavity enclosed by the inner shell into an upper box and a lower box, storage drawers are arranged in the lower box, a plurality of detachable storage plates are parallelly arranged in the upper box, the distance between two adjacent storage plates is equal to that between another two adjacent storage plates, four movable rollers are arranged below the square cabinet body, and the cabinet door is hinged to the edge of the square cabinet body through mute bearing hinges. The movable multilayer parcel storage system has the advantages of simple structure, convenience in moving and high practicability.

The invention provides an assembled ecological retaining wall and a construction method thereof, and relates to the technical field of retaining walls. The assembled ecological retaining wall comprises a foundation and a soil fixation frame fixed on the foundation. The soil fixation frame comprises longitudinal beams and cross beams, which are staggered and stacked on the foundation from bottom totop. The longitudinal beams are parallel to a blocked soil slope plane, the cross beams are perpendicular to the blocked soil slope plane, the longitudinal beams and the cross beams are connected inan inlaid manner, each layer comprises a plurality of the longitudinal beams or the cross beams which are arranged side by side at intervals, and intermediate filler layers are arranged between the adjacent longitudinal beams or the cross beams of the same layer. A top filler layer is arranged at the top of the soil fixation frame. The problems of a long construction period and environment destruction of a gravity retaining wall in the prior art are solved.

The invention provides a spliced tobacco stem box frame and a using method, and relates to the technical field of cigarette storage. The spliced tobacco stem box frame comprises a box body and a framebody arranged in the box body, the frame body comprises a first column, a second column and a third column, a first clamping block is arranged on the first column, and a first clamping groove is formed between the first clamping block and the first column. A second clamping block is arranged on the second column, a second clamping groove is formed between the second clamping block and the secondcolumn, the third column comprises a first plane and a second plane perpendicular to the first plane, at least one part of the first plane is located in the first clamping groove, at least one part ofthe second plane is located in the second clamping groove, and a base plate is further arranged in the box body. According to the spliced tobacco stem box frame and the using method, the size of a tobacco stem box does not need to be changed, the strength of the tobacco stem box can be effectively enhanced, it is guaranteed that the tobacco stem box is not prone to deformation in the operation process, the risk that a lining is punctured is avoided, stem leakage and material leakage are avoided, and cigarette quality and sanitation are guaranteed.

The invention discloses a step-by-step supercharged rubber injection molding machine. The machine comprises a base and a top cover, wherein at least three guide columns are arranged between the base and the top cover, and a pressure plate is fixed on the guide columns and can extrude a molding die at the top of the base; an oil pump is arranged on the pressure plate, a cavity is formed in the middle of the top cover, and the oil pump can extend into the cavity; and a supercharging block is arranged at the bottom of the top cover, can rotate in the horizontal plane and can reciprocate in the vertical direction to be arranged at the top of the oil pump. With the adoption of the step-by-step supercharged rubber injection molding machine, the supercharging requirement of the rubber injection molding machine can be met efficiently.

The invention relates to a decoupling lightning protection circuit and a lightning protection connection terminator. The lightning protection circuit includes at least two levels of lightning protection units which are connected to conductors of a main circuit, and the decoupling unit is arranged between the neighboring lightning protection units. The decoupling unit is at least a magnetic ring which is arranged on the outside of the conductor in the middle of the two levels lightning protection units. The connection terminator includes a connection terminator body and an anti-thunder equipment which is separated and connected with the connection terminator body. The connection terminator body includes an insulating shell, an inlet wire port and an outlet wire port arranged on two terminals of the insulating shell respectively and a conductor which is communicated with the inlet wire port and the outlet wire port. The anti-thunder equipment uses the surge lighting protection circuit. By using the magnetic ring sleeved on the outside of the conductor, the surge between the two levels lightning protection units is carried out when the lightning protection unit is operated, and the surge magnetic ring is unnecessary to have an electric connection with the conductor. Therefore, the electric connection points are reduced, and reliability of the circuit is improved.

The invention discloses a tray automatic identification device based on a magnetic sensor array, and belongs to the field of intelligent catering equipment. The device is composed of a tray with built-in magnetic steels, a checkout counter with a magnetic sensor array, a processor (CPU), a display screen, a payment system, and an additional circuit; the technical problem to be solved is to providea tray automatic identification device based on a magnetic sensor array, a detection array is formed by arranging a plurality of magnetic sensors uniformly on the checkout counter, the magnetic sensors generate trigger signals by setting different numbers of magnetic steels in the bottom of different trays and using a magnetic field generated by the magnetic steels, and due to the different number of built-in magnetic steels, the number of sensors that can be triggered by different trays is different, so as to achieve the purpose of tray automatic identification. According to the tray automatic identification device based on the magnetic sensor array, the work of cashier is replaced by the automatic identification of trays through the checkout counter, which makes the purchase and paymentfaster and more accurate.