36results about How to "Small structure size" patented technology

The invention provides a scanning electron microscope objective lens system and a detection method, and relates to the technical field of scanning electron microscopes. The magnetic lens device is used for focusing an incident electron beam; the deflection device, the anastigmator, the Wien analyzer group and the detection device are all located in an accommodating space in the magnetic lens device; the deflection device, the anastigmator and the Wien analyzer group are arranged along the optical axis of the incident electron beam and are arranged around the optical axis; the deflection device and the anastigmator are respectively used for adjusting the movement direction and shape of the incident electron beam so as to scan a to-be-tested sample through the incident electron beam, so that the to-be-tested sample generates signal electrons; the Wien analyzer group is used for adjusting the movement direction of the signal electrons to enable the signal electrons to enter the detection device; the detection device is located on the side, close to the magnetic lens device, of the deflection device, the anastigmator and the Wien analyzer set and used for generating a detection signal according to the signal electrons and achieving surface imaging of the to-be-detected sample. The imaging precision and the detection efficiency of the objective lens system are improved.

The utility model provides a mechanical arm structure for a small coal mining machine and the coal mining machine, and relates to the technical field of coal mining machines, the mechanical arm structure comprises a supporting piece, a crank arm and a telescopic piece, the crank arm comprises a first arm section and a second arm section which are connected, one end, deviating from the second arm section, of the first arm section is rotationally connected with the supporting piece, and a first rotation center is formed. The end, away from the first arm section, of the second arm section is used for being connected with a machine head and forming a mounting center, and the end, close to the mounting center, of the second arm section inclines downwards. One end of the telescopic piece is rotationally connected with the supporting piece to form a second rotating center, and the other end of the telescopic piece is rotationally connected with the first arm section to form a third rotating center so as to drive the machine head to deflect up and down. According to the mechanical arm structure provided by the embodiment of the invention, by optimizing the sizes of all the parts, on the premise that a large excavation range is guaranteed, the structural size of the mechanical arm is greatly shortened, the gravity center is lowered, the weight is reduced, and the strength, stability and the like are improved.

The application discloses a kind of optical fiber side light extraction structure and method, belong to optical fiber side light extraction technical field, structure has including femtosecond grating light extraction component, filter component including filter layer and with slit light shielding layer, and detection component.The method includes: with grating diffraction separation optical signal in fiber core, with filter component filters optical signal, with detector receives signal.The application is by femtosecond laser in fiber core and writes small refractive index modulation area, with diffraction effect will transport light be introduced with specific angle to side, again cooperate external filter and metal slit and constitute spatial filter, physically block the stray light deviating from preset angle.This internal diffraction+external filter synergic mechanism avoids physical damage optical fiber surface, and realizes high purity, high directional signal extraction under micro size.

The utility model discloses a closed chip consumable, including main part, be equipped with sample inlet, pre dilution area, ration area, mixing area and detection unit on the main part, and pre dilution area includes premixing cavity and premixing fluid channel with its export intercommunication, and mixing area includes mixing cavity and mixing fluid channel with its export intercommunication, sample inlet, premixing cavity, premixing fluid channel, ration area, mixing cavity, mixing fluid channel and detection unit sequence connection, and premixing cavity and mixing cavity all store reagent in, and premixing cavity and mixing cavity can be pressed and moved, and after pressing and moving, the content in it is mixed in it. This consumable can realize zero contact operation, can avoid cross contamination and operating error, and shorten the detection time. Moreover, premixing cavity can handle sample in advance and then make sample enter each mixing cavity and handle, this can reduce the structure size of each mixing cavity, thereby reduce the structure size of consumable.

The invention provides an optical fiber collimator, an MEMS optical acceleration sensor and a preparation method. The optical fiber collimator comprises a self-calibration coupling unit, a self-focusing collimation unit and a light beam steering adjusting unit. The self-calibration coupling unit is provided with an axial inner hole, and the self-focusing collimation unit and the light beam steering adjusting unit are both installed in the axial inner hole and are oppositely arranged. The first end face, facing the self-focusing collimation unit, of the light beam steering adjustment unit is not perpendicular to the axis of the axial inner hole. Light rays incident through the self-focusing collimation unit are reflected by the first end face to be turned and emitted out of the self-calibration coupling unit; the optical fiber collimator integrates the light beam steering and angle adjusting functions, after the system is installed, the direction of the emergent light beam can be optimized in real time by adjusting the light beam steering adjusting unit in the circumferential direction, and the installation difficulty is greatly reduced.

The invention relates to a circuit breaker (1). The circuit breaker (1) comprises: a housing (3) made of an electrically conductive material; an interruption unit (5) which is arranged in the housing (3) and which is spaced apart from a housing wall (15) of the housing (3) by a gap (17); and a solid insulator (7) which is arranged in the gap (17) and which is at least predominantly made of an electrically insulating insulator material.

This invention discloses a pneumatic micro-transport device, including an air compressor connected to a pneumatic solenoid valve via an air pump pipe. The pneumatic solenoid valve is connected to a microcontroller via a relay, and the microcontroller is connected to a LabVIEW host computer via a USB interface. The pneumatic solenoid valve is also connected to a micro-transport array via the air pump pipe, and a transport plate is placed above the micro-transport array. This device is designed based on pneumatic principles. Compared to traditional contact-type transport devices, its transport method avoids failures caused by friction-induced wear. Furthermore, thanks to its non-contact transport characteristics, its application range is further expanded. It employs deep silicon etching micromachining technology, with the silicon plate structure serving as the air chamber channel and nozzle of the micro-transport device, significantly reducing the structural size of the micro-transport device, improving space utilization, and solving problems such as low integration in traditional micro-transport devices.

This invention discloses a biomimetic anchoring device based on a double-helix structure and an active adhesion mechanism, belonging to the technical field of biomimetic and marine engineering mooring equipment. Addressing the shortcomings of existing deep-water mooring anchors, such as large soil disturbance and easy failure of passive pull-out resistance, this invention provides a biomimetic anchoring structure adapted to complex seabed sediments. The device includes a rigid body, double-helix blades, and an active adhesion triggering mechanism. The rigid body consists of a solid bullet head, a central oval hollow structure, and a top conical structure. The double-helix blades adopt a variable pitch and variable diameter design, with evenly distributed grooves on the surface. The active adhesion triggering mechanism includes an anchor ring and an anchor ring piston structure, with a built-in drive motor and intelligent sensing and control module in the center. The device achieves low-disturbance penetration through double-helix micro-screwing and kinematic matching. Active adhesion is triggered under tension, forming a deep mechanical interlock and high-pressure consolidated soil crust with the soil, significantly improving pull-out bearing capacity. It is suitable for complex seabed sediments such as soft mud and gravel mixtures.

The application discloses a nonlinear compact metamaterial structure for enhancing sound sensing and sound source positioning, and relates to the technical field of sound sensing enhancement. The application discloses a nonlinear compact metamaterial structure for enhancing sound sensing and sound source positioning, and relates to the technical field of sound sensing enhancement. The application discloses a nonlinear compact metamaterial structure for enhancing sound sensing and sound source positioning, and relates to the technical field of sound sensing enhancement. The application discloses a nonlinear compact metamaterial structure for enhancing sound sensing and sound source positioning, and relates to the technical field of sound sensing enhancement. The application discloses a nonlinear compact metamaterial structure for enhancing sound sensing and sound source positioning, and relates to the technical field of sound sensing enhancement. The application discloses a nonlinear compact metamaterial structure for enhancing sound sensing and sound source positioning, and relates to the technical field of sound sensing enhancement. The application discloses a nonlinear compact metamaterial structure for enhancing sound sensing and sound source positioning, and relates to the technical field of sound sensing enhancement. The application discloses a nonlinear compact metamaterial structure for enhancing sound sensing and sound source positioning, and relates to the technical field of sound sensing enhancement. The application discloses a nonlinear compact metamaterial structure for enhancing sound sensing and sound source positioning, and relates to the technical field of sound sensing enhancement. The application discloses a sound sensing and sound source positioning device.

The invention relates to a micromechanical component for a stress sensor, having a first substrate (10) with a first substrate surface (10a), a second substrate (12) with a second substrate surface (12a) and an evaluation electronics (20) configured at and / or in the second substrate (12), wherein the first substrate (10) is fixed at the second substrate (12) by means of at least one electrical connection (22) formed by means of a metal bonding method, which is configured in an intermediate volume (14) between the first substrate surface (10a) and the second substrate surface (12a), wherein at least one electrode (16, 16a, 16b, 62) and at least one counter electrode (18a, 18b, 18c) are arranged in the intermediate volume (14), wherein the at least one electrode (16, 16a, 16b, 62) and / or the at least one counter electrode (18a, 18b, 18c) are electrically connected at the evaluation electronics (20) by means of the at least one electrical connection (22) formed by means of a metal bonding method.

The invention relates to a bridge guardrail anchoring structure and an anchoring construction method, and belongs to the technical field of road bridge engineering, the bridge guardrail anchoring structure comprises a top plate, a side plate, a plurality of top bolts and a plurality of side bolts, and the top plate and the side plate are integrally formed; the bottom surface of the top plate is arranged on the top surface of the curb, and a plurality of top anchor holes are formed in the top plate; the side plate makes contact with the curb side, and a plurality of side anchor holes are formed in the side plate. The bottom ends of the guardrail columns are fixed to the top end of the top plate. The plurality of top bolts respectively penetrate through the plurality of top anchor holes; and the plurality of side bolts respectively penetrate through the plurality of side anchor holes. A top plate and a side plate which are integrally formed and vertically distributed are arranged at the top end and one side of the curb correspondingly, then a plurality of top bolts penetrate through a plurality of top anchor holes correspondingly to be in threaded connection with the interiors of corresponding top screw grooves, and a plurality of side bolts penetrate through a plurality of side anchor holes correspondingly to be in threaded connection with the corresponding side screw grooves; the guardrail can be firmly fixed on the curb on the premise that the size of the bridge deck structure is not enlarged and the original curb structure is not changed, and the stability and the reliability of guardrail fixing are improved.

The utility model relates to a kind of electromagnetic clutch brake and cableway system, and electromagnetic clutch brake includes output shaft, power, transmission device and electromagnetic device, transmission device includes first transmission wheel, second transmission wheel and friction assembly, first transmission wheel is connected with power wheel, second transmission wheel is connected with output shaft, first transmission wheel has first spline, second transmission wheel has second spline, friction assembly includes first friction plate and second friction plate, first friction plate is matched with first spline, second friction plate is matched with second spline;Electromagnetic device is located in second transmission wheel side along the axial direction of output shaft, when electromagnetic device loses power, electromagnetic device is towards the direction of second transmission wheel and presses friction assembly;When electromagnetic device is powered, electromagnetic device can release the pressure between first friction plate and second friction plate, and make second transmission wheel stop rotating.The electromagnetic clutch brake of the utility model is simple in structure, small in space occupation, convenient to overhaul, brake gap is easy to adjust and low in energy consumption.

The invention relates to a clutch device (2) for arrangement in a motor vehicle drive train between a drive unit (4) and a transmission (6), comprising a parallel double clutch (34) with a first multiplate clutch (36) for selectively transmitting torque between a clutch input side (38) and a first clutch output side (40) and a second multiplate clutch (42) for selectively transmitting torque between the clutch input side (38) and a second clutch output side (44), wherein the first multiplate clutch (36) has a first friction plate pack (46) which can be actuated by a first force transmission element (76), the second multiplate clutch (42) has a second friction plate pack (48) which can be actuated by a second force transmission element (78), and the first force transmission element (76) extends through an opening (96) in a friction plate of the second friction plate pack (48) to the first friction plate pack (46). The second force transmission element (78) extends through an opening (92) in the first force transmission element (76) to the second friction plate pack (48).

The utility model relates to paper pulp mould technical field discloses a kind of paper pulp mould heating plate, including plate body and inlay nut. Multiple mounting holes are provided on plate body, mounting hole includes cylindrical hole and strip slot, cylindrical hole is through plate body along the height direction of plate body, and strip slot is set on the bottom surface of plate body. Inlay nut includes cylinder and rotation-stopping strip, rotation-stopping strip is fixedly set in the lower end of cylinder, and it extends along the direction perpendicular to cylinder axis, and the top end of cylinder is provided with the threaded hole extending along cylinder axis, and cylinder is set in cylindrical hole, and rotation-stopping strip is set in strip slot. The paper pulp mould heating plate of the utility model, inlay nut simple structure, easy to install, it is convenient to mass production, and production cost is low, and the overall structure size of inlay nut is smaller, and it is convenient to arrange on plate body. The above setting makes that paper pulp mould heating plate structure is simpler, reduces the production cost of paper pulp mould heating plate, is favorable to the hole spacing of screw hole on paper pulp mould heating plate.

This invention discloses a horizontal high-temperature superconducting magnetic levitation bearing, an alignment device, and a method of use. The bearing includes a Dewar support base; a vacuum Dewar device mounted on the Dewar support base, with a vacuum port and a liquid nitrogen port, a vacuum Dewar shell, and an internal liquid nitrogen chamber and superconducting block; and a rotor shaft assembly connected at one end to the vacuum Dewar device, comprising a rotor shaft, a load shaft connected at one end of the rotor shaft, a motor output shaft connected at the other end of the load shaft, several permanent magnets sleeved on the outside of the rotor shaft, a soft iron layer between the permanent magnets, a sheath surrounding the permanent magnets, and an end plate at the end of each permanent magnet. It allows for adjustment in both vertical and horizontal directions. The conical arc surface of the conical alignment mechanism mates with the conical arc surface at the end of the rotor shaft, thus supporting the rotor shaft. It is suitable for horizontally placed ultra-high-speed rotation applications, and has the advantages of small size, light weight, and good alignment.

The invention relates to the technical field of microwave antennas, and discloses a broadband liquid crystal phased antenna array integrated by heterogeneous substrates. The heterogeneous substrate integrated broadband liquid crystal phased antenna array comprises a radiation structure, a liquid crystal phase shifter structure and a feed network structure. The radiation structure and the feed network are arranged on two sides of the metal floor in a layered manner, so that the problem that the radiation performance of the antenna is influenced by the radiation of the microstrip feed network is solved; the radiation structure adopts a double-layer structure to realize broadband radiation, energy transmission adopts a copper column direct connection mode, a metal floor wide gap etching process is omitted, and the radiation stability and reliability are improved; non-direct-connection energy transmission between the feed network and the phase shift line is realized by adopting small-sized flat plate coupling, waveguide feed is avoided, and the overall thickness of the antenna is reduced.

The application discloses a diversion tunnel alternating flow staging gate closing water storage structure and method, relates to the technical field of water conservancy and hydropower construction, and comprises a first diversion tunnel, a second diversion tunnel and a three-face stoplog gate, the first diversion tunnel is provided with a first water inlet and a first water outlet at two ends, and is further provided with a third water inlet, the setting height of the third water inlet is higher than that of the first water inlet; the first diversion tunnel is further provided with a first gate slot and a third gate slot, and the first gate slot and the third gate slot are located at the front and rear of the third water inlet respectively; the second diversion tunnel is provided with a second water inlet and a second water outlet at two ends, the setting height of the second water inlet is higher than that of the first water inlet and is lower than that of the third water inlet; the second diversion tunnel is vertically provided with a second gate slot at the second water inlet; and the stoplog gate is formed by parallel and coplanar splicing of a plurality of baffles. The application can solve the problem that the downstream river channel cannot be effectively prevented from being dehydrated and cut off under the premise of ensuring economy and safety.

The utility model relates to a tandem type double-rotor unmanned aerial vehicle transmission system, which is characterized in that reversing speed reduction units of a front rotor and a rear rotor are connected through a plurality of sections of synchronous long shafts, and the tandem type double-rotor unmanned aerial vehicle transmission system comprises a three-stage speed reduction structure, namely a first-stage synchronous belt speed reduction structure, a second-stage bevel gear speed reduction structure and a third-stage planetary gear train speed reduction structure, the second-stage bevel gear speed reduction realizes power transmission through a bevel gear, and the third-stage planetary gear train speed reduction transmits power to a rotor shaft through meshing of a planetary gear, a sun gear and a gear ring; the system solves the problems that a traditional tandem rotorcraft transmission system is single in structure, slow in clutch response, difficult in engine starting, insufficient in power, poor in emergency risk avoiding capacity and difficult to maintain, and the performance and reliability of the unmanned aerial vehicle are improved.

The invention relates to a diaphragm, and particularly provides an MEMS technology-based variable diaphragm and a working method thereof, the variable diaphragm comprises a first part and a second part, the first part and the second part are combined to form the diaphragm, and when the first part and the second part are separated, the aperture of the diaphragm is changed; two sides of the first part and the second part are respectively fixed on the body through a cantilever beam, and the first part, the second part and the cantilever beam are suspended; the driving unit is used for driving the first part and the second part to separate and approach; the body is provided with a light through hole, and electrons sequentially penetrate through the diaphragm and the light through hole. The device has the advantages of high adjustment precision and the like, and is applied to electron microscopes.

This invention relates to the field of bridge technology, specifically to an arch abutment, an arch abutment construction method, an arch bridge for sloping terrain, and an arch bridge construction method. An arch abutment includes an embedded section, a hollow section, and a post-cast section. The embedded section is embedded in the bedrock of the foundation. The hollow section is located on the top surface of the embedded section. The post-cast section is used for a solid connection with the main arch. The embedded section is a solid structure. The hollow section includes a vertical arm and an inclined arm. The vertical arm, the inclined arm, and the embedded section can enclose and form a cavity. The embedded section, the hollow section, and the post-cast section are all reinforced concrete structures. By setting a cavity in the arch abutment, the amount of concrete and steel reinforcement used in the arch abutment is significantly reduced. By using a hybrid approach of arch abutments with cavities and solid enlarged arch abutments—that is, using arch abutments with cavities on the side of the sloping terrain with lower ground elevation and solid arch abutments on the side with higher ground elevation—the amount of concrete and steel reinforcement used in the arch abutment is significantly reduced, saving on the cost of the arch bridge.

The utility model provides a kind of field sowing robot belongs to sowing equipment technical field, this field sowing robot includes unmanned vehicle and bracket, the bracket is detachably installed in the tail of unmanned vehicle, and can be driven to travel by unmanned vehicle;Multiple bearing plates are equipped on the bracket, and sowing mechanism for sending seed into soil interior is equipped on bearing plate;The bracket includes first mounting bracket and second mounting bracket hinged to each other, strip-shaped hole is opened on the first mounting bracket and second mounting bracket, and bearing plate is installed on the first mounting bracket and second mounting bracket by strip-shaped hole;The side of bearing plate is fixedly connected with side plate.The equipment is combined by unmanned vehicle traction and detachable sowing mechanism, which reduces the overall structure size of the equipment, improves portability and flexibility of scene change;At the same time, cooperate with foldable bracket, the occupied space of equipment can be further reduced in non-working state, greatly facilitates storage and transportation.

The present application relates to rigging manufacturing technical field, disclose a kind of automatic wire winding bundling equipment, including bundling frame, and the bundling frame is provided with drag air shears component, screw air shears component, shearing air shears component and blocking telescopic component, the axis of drag air shears component, screw air shears component and shearing air shears component and the end of blocking telescopic component are coplanar;Wire winding frame is provided with center shaft, and the center shaft is fixedly connected with wire winding frame, and the end outer wall of center shaft close to bundling mechanism is rotatably connected with notched gear, and the side of center shaft is provided with notch, and the axis direction of center shaft and notched gear coincides with the direction of opening axis, so that cable is located in center shaft, notched gear and opening;Driving assembly for driving notched gear to rotate is provided on wire winding frame, and wire disc assembly and yarn ejecting assembly are provided on notched gear.The present application can improve production efficiency, reduce labor intensity.

The utility model discloses a bonding-free Micro LED structure, which comprises a silicon substrate, an LED epitaxial layer growing on the front surface of the silicon substrate, a CMOS circuit layer growing on the back surface of the silicon substrate, and a first conductive through hole and a second conductive through hole which are arranged along the surface of the CMOS circuit layer towards the direction of the LED epitaxial layer and penetrate through the silicon substrate, and the CMOS circuit layer and the LED epitaxial layer are directly conducted and connected through the first conductive through hole and the second conductive through hole. According to the utility model, electrical interconnection is realized through double-sided integration and internal conduction, and a bonding step is not needed.

The utility model relates to a rotary transformer, a stator and a motor system. A resolver includes: a stator (10) having an arc-shaped structure extending in a circumferential direction; and a rotor (20) disposed radially inward of the stator (10) and configured to be rotatable with respect to the stator (10), in which the rotor (20) includes N convex portions (21) and N concave portions (22), the convex portions (21) and the concave portions (22) are alternately arranged in a circumferential direction, N is an integer and is equal to or greater than 2, and in which a central angle [theta] of the stator (10) satisfies: 360 degrees / N < = [theta] < 360 degrees.

This application relates to the technical field of noodle twisters, and more particularly to a single-piece adjustable noodle twister, comprising a handle, a clamp, and an adjustment mechanism. The handle has a through hole with threads. The clamp includes a stationary clamp plate, a movable clamp plate, a rotating pin, and a reset component. The stationary clamp plate is fixedly connected to one end of the handle, and the stationary and movable clamp plates are hinged by the rotating pin. The reset component is located between the stationary and movable clamp plates. The adjustment mechanism includes an adjustment screw, a positioning part, and an adjustment section. The adjustment screw passes through the through hole, and one end of the adjustment screw extends onto the movable clamp plate. The positioning part is mounted on the adjustment screw. The adjustment screw is threadedly connected to the handle, and the adjustment section is fixedly connected to the end of the adjustment screw away from the stationary clamp plate. This application features a simplified structure, light weight, small space occupation, easy portability, and convenient adjustment of clamp tightness, adaptable to various overhead contact line installation scenarios.

The invention relates to the technical field of environmental engineering, environmental monitoring and hydraulic engineering, in particular to a modularized water quality sampling and monitoring system which comprises a power main ship and a modularized hanging ship. Wherein the modularized hanging boats at least comprise a sampling hanging boat, an environment monitoring hanging boat and a sonar detection hanging boat; the power main ship is connected with the modularized hanging ship through a detachable connecting device, and the power main ship is in communication connection with the modularized hanging ship; the power main ship provides sailing power and working electric power for the modularized hanging ship; the sampling hanging boat is used for sampling a water sample or collecting bottom mud at a preset destination; the environment monitoring hanging boat is used for carrying out environment monitoring at a preset destination; the sonar detection hanging boat is used for carrying out sonar detection at a preset destination; and the power main ship is used for sending the data of the modularized hanging ship to the shoreside base station and receiving an instruction of the shoreside base station.

The application discloses a small cloud detection and identification camera and satellite, and relates to optical measurement and metrology. The application comprises a lens group, a pre-filter arranged on the image side of the lens group, the pre-filter being a double-channel narrow-pass filter, a color detector arranged on the other side of the pre-filter, the color detector being a surface array imaging detector adopting a Bayer filter, a processing circuit in communication connection with the color detector, used for receiving detection data of the color detector and performing image identification, and a support structure provided with an inner cavity matched with the support structure, the lens group, the pre-filter, the color detector and the processing circuit, wherein the lens group, the pre-filter, the color detector and the processing circuit are arranged in the inner cavity, so that the problem that the existing cloud judgment method and load cannot completely meet the on-orbit use requirement of high-resolution remote sensing imaging satellites is solved.

The utility model discloses a compact microchannel heat pipe heat exchanger relates to heat exchanger technical field, and this compact microchannel heat pipe heat exchanger includes a plurality of staggered setting's easy dismounting heat pipe, and the easy dismounting heat pipe of adjacent through the heat pipe connector of end portion head -to -tail connection, and the easy dismounting heat pipe of end portion still fixedly connected with heat pipe end, wherein, easy dismounting heat pipe includes C type metal heat pipe, and the inside of C type metal heat pipe is rectangular array and is set with heat energy microchannel, and the inside of C type metal heat pipe still is rectangular array and is fixedly connected with the reinforcing heat conduction plate, the utility model discloses, and the heat energy microchannel in the inside of C type metal heat pipe is passed to the outside medium, and the heat exchange medium around the reinforcing heat conduction plate and the outside heat conduction plate of rectangular array setting can absorb heat, realize heat exchange, and the overall structure size is smaller, is suitable for the position of relatively narrow use.

This application discloses a vortex oscillation device, belonging to the field of vortex instrument technology, comprising: a support assembly, an oscillation motor, and a sample holder. The invention utilizes a compact layout design of the base plate and two sets of symmetrical upright plates in the support assembly, and a sample holder with a direct power transmission structure to reduce intermediate transmission components. Combined with an elastic clamping structure, this further reduces the overall structural size, minimizing the overall space occupied during multi-device operation and facilitating integration or joint use with other testing equipment.