22results about How to "Simple and reliable design" patented technology

The invention provides an automatic hole finding prefabricated lifting component and a using method thereof.The automatic hole finding prefabricated lifting component comprises a lifting appliance, the lifting appliance comprises a sleeve, a telescopic supporting column is arranged on the sleeve, horse legs are arranged at the bottom of the supporting column, a second-stage rotating device is arranged between the supporting column and the horse legs, a first-stage rotating device is arranged at the top of the supporting column, and rotating horseshoes are arranged on the horse legs; a first lifting baffle and a second lifting baffle are arranged on the two sides of the horse legs respectively. The whole structure can automatically find holes, the accident risk is reduced, the operation process is simplified through the automatic hole finding function, manual intervention is reduced, and operation convenience is improved. The process of repeatedly adjusting the position of the lifting machine is omitted, the lifting time is obviously shortened, and the operation efficiency is improved. According to the overall structure, the process of horseshoe vertical state-entering state-horizontal state-square block hoisting-vertical state-hoisting tool pulling-out is achieved, the hoisting tool can be recovered to the initial state after hoisting is completed, then the hoisting tool is recycled, the hoisting efficiency is improved, and the hoisting cost is reduced.

The utility model relates to the technical field of material loading and unloading, in particular to a rail material transport train material loading and unloading auxiliary device which comprises a base, sliding grooves are formed in the outer walls of the upper ends of the two sides of the base, a sliding rod is movably connected to one side of the inner wall of each sliding groove, and first tooth blocks are fixedly connected to the outer walls of the two sides of the upper end of each sliding rod. First air cylinders are fixedly connected to the outer walls of the two sides of the lower end of the base, one sides of the upper ends of the first air cylinders are fixedly connected with the outer walls of the lower ends of the sliding rods, two fixing blocks are fixedly connected to the outer walls of the two sides of the upper end of the base, connecting grooves are formed in the outer walls of one sides of the upper ends of the fixing blocks, and clamping grooves are formed in the outer walls of one sides of the fixing blocks. The outer wall of the upper end of the base is movably connected with an inclined plate, and the outer walls of the two sides of the inclined plate are each fixedly connected with two fixing columns. The problems that existing material loading and unloading depend on manual cooperation, a large amount of manpower needs to be input, operation efficiency is low, and time and labor are consumed in the loading and unloading process are solved.

The utility model relates to the technical field of oil collecting and lubricating equipment, and discloses a high-speed planet carrier combined tooth oil collecting and lubricating structure which comprises a planet carrier, a planet wheel shaft is arranged in the planet carrier in a penetrating mode, a planet wheel is fixedly connected to the middle of the outer wall of the planet wheel shaft, and a distance ring is fixedly connected to the outer wall of the planet wheel shaft. Adjusting rings are fixedly connected to the left side and the right side of the outer wall of the planet wheel shaft, an elastic check ring for a hole is fixedly connected to the left side of the top of the inner wall of the planet carrier, and the left side of the outer wall of the planet wheel shaft is axially fixed to the left side of the inner wall of the planet carrier through the elastic check ring for the hole. Oil collecting grooves are formed in the upper and lower ends of the right side of the inner wall of the planet carrier. According to the planet carrier, the concave oil collecting groove in the right side plate of the planet carrier is simple and reliable in design and low in cost, oil is continuously supplied to lubricate the combined tooth part in the rotating process of the equally-divided oil through holes, all parts of the speed reducer are fully lubricated while the oil level is lowered, and therefore the maintenance cost of the speed reducer in the later period is lowered.

The invention relates to the technical field of compressed natural gas automobiles, and discloses a 35MPa compressed natural gas supply system and method for an automobile, and the system comprises a gas cylinder cabin, a gas filling cabin and an engine cabin; a plurality of carbon fiber fully-wound gas cylinders with the rated pressure of 35MPa are mounted in the gas cylinder cabin; a cylinder valve is integrated with a flow sensor, a temperature sensor and a pressure sensor; a gas filling port, a one-way valve, a high-pressure pressure gauge, a high-pressure stop valve, a high-pressure precision filter and a pipeline overcurrent protection valve are mounted in the gas filling cabin, the one-way valve and the high-pressure stop valve are jointly connected to one end of the pipeline overcurrent protection valve, and the other end of the pipeline overcurrent protection valve is connected with a high-pressure gas storage bottle; a high-pressure electromagnetic valve and a high-pressure pressure reducer are mounted in the engine compartment; the other end of the high-pressure electromagnetic valve is connected with the high-pressure precision filter; according to the scheme, the cabin thought design is adopted, the integration and modularization degree is high, the combination requirements of different gas cylinder sets can be met, installation and layout of different vehicle types are facilitated, a 35 MPa compressed natural gas automobile can be smoothly implemented, and the scheme is particularly suitable for being used by a 35 MPa compressed natural gas truck.

The invention relates to a passive and passive trigger pulse generation circuit. The circuit comprises a charging loop and a discharging loop, the charging loop charges the energy storage capacitor; the discharge loop comprises a voltage sensitive component, after the voltage at the two ends of the energy storage capacitor reaches the set voltage value of the voltage sensitive component, the energy storage capacitor discharges through the discharge loop, and the power pulse is loaded to the load to form the power pulse. A control mode of a power pulse and a circuit topological structure principle are innovated, a passive mode is adopted, passive triggering is carried out, and the voltage of a power source is utilized (high voltage can be directly used for charging an energy storage capacitor without being converted into low voltage to charge the energy storage capacitor) to be matched with the characteristic of a passive voltage sensitive component (generally used for circuit protection traditionally); and outputting a power pulse signal.

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 application provides a T / R module and an active phased array radar comprising the T / R module. The T / R module comprises an upper cover plate, a lower layer plate, and a plurality of heat dissipation teeth arranged at the bottom of the lower layer plate; an information processing chip is arranged on the upper cover plate, and a power amplifier chip is arranged on the lower layer plate; an information processing chip is arranged on the upper cover plate, and a power amplifier chip is arranged on the lower layer plate; a graphene heat conduction pad is arranged between the information processing chip and the upper cover plate, and the part of the graphene heat conduction pad in contact with the upper cover plate adopts a graphite aluminum embedded aluminum column mode; a local heat sink is arranged on the upper cover plate. The active phased array radar provided by the application significantly improves the heat dissipation efficiency of the T / R module and guarantees the stability of the phased array radar under high-power operation. Moreover, the design is simple and reliable, has good environmental adaptability and light weight advantage, is suitable for large-scale popularization and application, and provides strong support for the high integration and high light weight development of the active phased array radar.

The application discloses a Sepic type power correction circuit based on a switched inductor, which comprises switching tubes S1-S3, diodes D1-D5, inductors L1-L5, capacitors C1 and C o The diodes D3-D5 and the inductors L4 and L5 form a switched inductor structure, and the voltage gain of the converter is D / (2-D). Compared with a conventional Sepic PFC converter, the Sepic type power correction circuit based on the switched inductor improves the step-down gain, ensures that the whole duty cycle range is in a step-down state, and has a larger duty cycle than the conventional Sepic PFC converter in the case of a high step-down ratio, thereby effectively avoiding the emergence of a limit duty cycle. The no-bridge structure can realize lower conduction loss. The original output diode is replaced by the switched inductor structure, so that the output current is continuous, and the output current can be filtered. All the switching tubes are common ground, and a lower-cost driving circuit can be used.

The application discloses a bipolar high-gain Cuk DC-DC converter for a direct-current microgrid, and relates to the field of voltage converters.The bipolar high-gain Cuk DC-DC converter comprises a coupled input unit, a bipolar voltage boosting unit and an output unit which are adaptively connected.The coupled input unit comprises a switching tube S and a coupled inductor.The same name end of the primary winding L1 of the coupled inductor is connected with the first electrode of the switching tube S, the third electrode of the switching tube S forms the positive input end of the coupled input unit, and the non-same name end of the primary winding L1 of the coupled inductor forms the negative input end of the coupled input unit.The first electrode of the switching tube S is connected with the neutral point of the output unit through the bipolar voltage boosting unit, the negative input end of the coupled input unit is connected with the negative output end of the output unit through the bipolar voltage boosting unit, and the output voltage amplitude of the positive output end and the negative output end of the output unit relative to the neutral point is equal.The converter has the advantages of high gain, self-voltage equalization, no need of an additional clamping circuit, high efficiency and strong reliability.

The utility model relates to the technical field of switch power supply circuits, in particular to a residual electricity rapid discharge circuit and a switch thereof. The relay RL1 is used for controlling on and off of a power supply; the bleeder circuit comprises a triode Q1, and a base electrode of the triode Q1 is connected to the control circuit and used for controlling conduction of the bleeder circuit; the control circuit comprises an MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) Q2, and a grid electrode of the MOSFET Q2 is connected with an external MCU (Microprogrammed Control Unit) and is used for controlling the conduction state of the triode Q1 during power failure; and the load circuit is connected with the power supply input end VCC-IN and the bleeder circuit, and the load circuit comprises an electrolytic capacitor U1. According to the utility model, through controlling the conduction of the triode Q1, the rapid discharge of residual electricity is realized, the abnormal reset starting problem caused by incomplete power failure when the circuit is connected with the power supply again is avoided, the circuit design is simple and reliable, the realization is easy, and the stability and reliability of the circuit are improved.

The utility model discloses a honeycomb plate connecting piece, which relates to the technical field of connecting pieces and comprises a connecting piece main body, a tool head and an eccentric wheel groove, a fixing hole is arranged at the bottom of the eccentric wheel groove, a connecting rod mounting groove is arranged in the center of the bottom of the connecting piece main body, and a mounting groove body is arranged at the bottom of the connecting piece main body. A small support is mounted on the inner wall of the mounting groove body, a square groove is formed in the outer wall of the connecting piece body, and a rectangular groove is formed in the outer wall of the connecting piece body. According to the utility model, the product is fixed in the connecting position of the cellular board by installing the cellular board connecting mechanism, the square groove, the rectangular groove and the fixing hole are used for fixing the connection of the product and the cellular board, then the product and the cellular board are installed in the eccentric wheel groove, and the connecting rod is moved into the connecting rod mounting groove; and the small bracket is moved into the mounting groove body to fix the position of the connecting rod, so that a plurality of groups of assembled cellular boards can be connected.

The utility model relates to the technical field of instant noodle production, in particular to an instant noodle barrel body conveying device. According to the technical scheme, the instant noodle barrel body conveying device comprises a frame, clamping plates, fixing blocks and pin shafts, the fixing blocks are arranged at the two ends of the frame, fixing holes are formed in the fixing blocks in a penetrating mode, the frame is installed on conveying equipment through the fixing holes of the fixing blocks and bolts, a containing groove is formed in the frame, and the clamping plates are arranged in the containing groove. A containing groove is formed in the side frame, a boss is arranged in the containing groove, clamping plates are arranged in the containing groove of the side frame through the boss in a supporting mode, clamping grooves are formed in the clamping plates, and the two clamping plates clamp and support the can body through the clamping grooves. The device has the advantages of being high in flexibility, convenient to install and replace, stable, reliable and the like, and production efficiency and equipment stability can be improved.

The application provides a dynamic sliding mode based attitude control method for an underactuated non-minimum phase RLV, which can realize accurate tracking control of longitudinal and lateral attitudes and stabilize the sideslip angle to zero by using only two movable flaps of the RLV, and solves the underactuated non-minimum phase control problem in the reentry process of the RLV. The control design is relatively simple, and has certain robustness to system state and parameter changes.

The application discloses a quantum sensor chip packaging structure capable of realizing wafer-level planar co-packaging, which comprises a microfabricated atomic cell, a light source chip assembly and a light detection chip assembly, the microfabricated atomic cell is integrated with a reflecting element, the reflecting element is used for adjusting the optical path of the light beam entering the microfabricated atomic cell, the microfabricated atomic cell, the light source chip assembly and the light detection chip assembly are supported on a packaging substrate through a micro-bump assembly and are directly electrically interconnected with the packaging substrate through the micro-bump assembly, the micro-bump assembly comprises a plurality of micro-bumps, the distribution mode of the micro-bumps is for the purpose of realizing the supporting function and the electrical interconnection, the size of the micro-bump supporting the microfabricated atomic cell, the light source chip assembly and / or the light detection chip assembly is adjustable, the optical path of the microfabricated atomic cell is regulated by adopting the combination of micro-bumps with different sizes, and the planar co-packaging of the microfabricated atomic cell and other key quantum sensor components can be realized.

The present invention is a multi-branch wellbore ultra-short radius window sidetracking directional tool and a method of use. The window sidetracking tool in the present invention includes an oblique fixture. When the inverted rod of the inverted ...

The invention relates to the technical field of liquid level meters, in particular to an automatic purging device for a liquid level meter and a using method. The invention provides an automatic purging device for a liquid level meter. The automatic purging device comprises a liquid level meter body, an air duct module and a fan module, the air duct module is of a double-layer hollow structure, the liquid level meter body is sleeved with the air duct module, and a conical opening is formed in the bottom end of the air duct module; the fan module is installed on the outer side of the air duct module. According to the automatic purging device for the liquid level meter, the purging device is installed on the liquid level meter body, the fan module on the outermost side provides purging power, air provided by the fan modules is compressed through the air duct module, and finally the air is blown out from a conical opening in the bottom end of the air duct module, so that purging of the surface of a probe of the liquid level meter is achieved. According to the automatic purging device for the liquid level meter, the time cost of manual operation can be reduced, the potential safety hazard of manual cleaning is eliminated, the purging device is simple and reliable in design, and safe production can be guaranteed.

The utility model relates to the technical field of transformer substations, in particular to an intelligent box-type direct-current traction transformer substation, which comprises a protection box and a transformer substation body, the transformer substation body is arranged inside the protection box, two first fixing blocks are fixedly connected to the tops of the two sides of the protection box respectively, and polished rods are rotatably connected between the two corresponding first fixing blocks respectively. Baffles are fixedly connected to the outer portions of the polished rods, and the sides, close to each other, of the two baffles are connected with the two sides of the protection box. The beneficial effects of the utility model lie in that the intelligent heat dissipation is helpful for avoiding the fault or damage of the assembly caused by overhigh temperature, thereby prolonging the service life of the key components such as the transformer, the rectifier and the control system, maintaining the equipment at a proper working temperature, reducing the fault rate, and further reducing the maintenance frequency and cost; the possibility of emergency maintenance is reduced, the risk of accidental shutdown is reduced, and compared with a traditional device, the operation quality and the use efficiency are greatly improved.

The present application discloses a flexible AC interconnection device, which includes a three-phase series converter valve connecting two AC systems; the series converter valve includes N rectifier inverter modules, M flow blocking modules, and K reactive modules; the rectifier inverter module includes a rectifier full-bridge circuit and an inverter full-bridge circuit connected in parallel on the DC side; the AC port of the inverter full-bridge circuit and the AC port of the inverter full-bridge circuit of other rectifier inverter modules are cascaded in sequence; the AC port of the rectifier full-bridge circuit is connected to different secondary windings of a multi-winding transformer or a power supply with energy supply capability; the flow blocking module includes at least one diode full-bridge rectifier circuit and a blocking capacitor connected in parallel to its DC end; the flow blocking module also includes a flow loop. According to the embodiments of the present application, the device provided by the present application has a flexible operation mode, high efficiency and high reliability.

The plastic package pump body comprises a stator assembly and a plastic package shell, the stator assembly comprises an iron core formed by rolling a plurality of sequentially connected iron core units, a framework and a winding, an axial hole is formed in a yoke part of the iron core, the plastic package shell is arranged on the stator assembly in an injection molding mode and comprises an inner shell part, an upper end part, a lower end part and a connecting part, and the opening direction of the inner shell part is the same as that of the axial hole; the radial distance between the inner wall surface of the inner shell part and the pole cambered surface is not more than 1mm, the upper end part is provided with a first axial hole, and the lower end part is provided with a second axial hole or a notch. According to the plastic package pump body, the plastic package shell is provided with the first axial hole and the second axial hole or the notch for the positioning needle of the mold to penetrate through, and the axial hole located in the yoke portion provides supporting and positioning for the stator assembly placed in the mold after the iron core is rolled to be round, so that injection molding plastic can be directly, evenly and thinly attached to the pole cambered surface of the iron core of the stator assembly; the air gap is reduced, the electromagnetic performance is improved, and meanwhile the production qualification rate is considered.

The invention provides a distributed curvature, strain and temperature sensing system and a sensing calculation method thereof, and relates to the technical field of sensors, and the sensing system comprises an optical fiber unit, a Brillouin optical time domain analyzer BOTDA, a distributed optical fiber temperature measurement system DTS, a first optical fiber switcher and a second optical fiber switcher. The optical fiber unit is composed of three spiral optical fibers and a central optical fiber and can sense various physical quantities such as curvature, strain and temperature. The system carries out dynamic measurement through a time division multiplexing technology, firstly, the DTS is used for measuring the temperature along the optical fiber unit, and then the BOTDA is used for measuring the strain of the optical fiber unit. Collected temperature data is not only used for temperature feedback of the optical fiber unit, but also provides temperature compensation for strain measurement. Through an equation set in the sensing solution method, the curvature radius, the curvature direction, the torsional strain and the tensile strain of the optical fiber unit can be accurately solved, and the shape information of the optical fiber unit can be restored through the curvature radius and the curvature direction.

The application provides a communication circuit, a V2X device, a vehicle and a communication method, the communication circuit comprising: a first switch selector for controlling the connection state between a master module and a V2X communication module through a switch; a second switch selector for controlling the connection state between the master module and a debugging device through a first switch, and controlling the connection state between the V2X communication module and the debugging device through a second switch. The application is aimed at the problem that the master module and the V2X communication module of the V2X device cannot be debugged under normal connection conditions, and the master module and the V2X communication module can be conveniently debugged by designing the first switch selector and the second switch selector to debug and control the master module and the V2X communication module, and the circuit design is simple and reliable, and has high practicability.

The application discloses a sampling device for river deep water environment monitoring, which comprises a floating mechanism, a weight block and a sampling mechanism. The floating mechanism is arranged on the river surface and is provided with a solar panel at the top for power supply. A photographing module is arranged above the solar panel, and a control module is arranged in the floating mechanism. The weight block is arranged at the bottom of the river and is connected with the floating mechanism through a center pipe. A strip hole extending upward and downward is formed in the left side of the center pipe. The sampling mechanism is fixedly connected with the center pipe and is arranged between the floating mechanism and the weight block. The device and the control method are used for collecting river water samples of different water layers. The water flow is distributed through the drainage hole by using the water pump to drive the sampling box to sink, and the bottom sediments of the river are not washed up, so that the influence of the water sample is avoided. The sinking depth of the sampling mechanism is controlled by the pipe collecting and releasing. The river water of different depths is periodically sampled according to the requirement. The sampling process does not stir the bottom sediments, and the sampled river water can truly reflect the water quality data.