195results about How to "No mechanical failure" patented technology

The invention provides a DC charging relay state detection device and method thereof and a DC charging system, and belongs to the technical field of DC charging. The DC charging relay state detection device comprises a first line which is connected between a first high voltage bus and a second high voltage bus in a bridging way, wherein a first resistor unit and a third resistor unit are arranged on the first line in a series connection way; a second line which is connected between the first high voltage bus and the second high voltage bus in a bridging way, wherein a second resistor unit and a fourth resistor unit are arranged on the second line in a series connection way; a switch component of which the two ends are electrically connected on the first line between the first resistor unit and the third resistor unit and the second line between the second resistor unit and the fourth resistor unit; and a state acquisition component which is used for reading information representing voltage information of the first end or the second end of the switch component so as to judge the stage of a DC charging relay. The DC charging relay state detection device has the advantages of being accurate and reliable in state detection and simple in detection.

The invention discloses a wireless switch control method and a control system of a wireless switch. The method includes the following steps: 1.a wireless radio frequency mobile terminal senses and identifies a wireless radio frequency tag, and a user inputs switch control requests and instructions through the wireless radio frequency mobile terminal; 2.the wireless radio frequency mobile terminal sends the switch control requests and instructions to a control server through a wireless communication network; 3.and the control server validates the switch control requests and instructions, and actuates a switch device which has logical mapping with the wireless radio frequency tag sensed by the wireless radio frequency mobile terminal. The wireless switch control system which achieves the wireless switch control method comprises the wireless radio frequency tag, the wireless radio frequency mobile terminal, the control server, and the switch device, wherein a unique identity (ID) number in the system is stored by the wireless radio frequency tag, and the ID number has the logical mapping with a real switch device. The wireless switch control method and the control system of the wireless switch have the advantages of being low in cost, low in failure rate and the like.

The invention discloses a variable-precision optical fiber sensor, which includes a probe, a light source and an optical receiver, the light source and the optical receiver are separately connected with probe through luminiferous medium in luminiferous connection, which is characterized in that the probe is a double optical fiber probe including sensor end, light incidence end and light emergence end, lots of the double optical fiber probes are arranged in a row on the surface, every double optical fiber probe sensor end is arranged according to height difference delta H; the luminiferous medium is cable, which is composed of optical fiber bundle comprising optical fiber induced from light incidence end or light emergence end of every double optical fiber probe; the double optical fiber probe with height difference delta H is arranged in space to form a multi-row with height difference delta H'. The invention can be used for testing liquid level in inflammable and explosive fluid, which has the characteristics of simple structure, low producing cost, strong capability of anti-electromagnetism and anti-interference, and anti-corrosion.

The invention relates to an integrated movable emergency communication base station. The base station comprises a movable chassis, a base station room and a rotary type telescopic communication tower, wherein the base station room is arranged on the movable chassis, and the rotary type telescopic communication tower is arranged in the base station room. The rotary type telescopic communication tower comprises multi-stage tower bodies, the multi-stage tower bodies are erected on a tower base of the movable chassis through a rotating shaft in the middle of a first-stage tower body, all the multi-stage tower bodies of the rotary type telescopic communication tower are located in the base station room when contracting and overturning to be in a horizontal state, the top end of the first-stage tower body of the multi-stage tower bodies is supported through a supporting frame arranged on the movable chassis, and the multi-stage tower bodies of the rotary type telescopic communication tower extend out of the base station room through a skylight arranged in a roof of the base station room when overturning to be in a vertical state. The integrated movable emergency communication base station solves the problem that an existing communication base station is inconvenient to move and complicated to erect and has the advantages of being small in size, convenient to move, simple to erect, good in stability, wide in application range and the like.

The invention discloses a photoelectric liquid level sensor and a measuring method; the photoelectric liquid level sensor comprises a laser and a photoelectric receiver, wherein the laser is connected with the photoelectric receiver through an optical fiber, the optical fiber is arranged in the a protection pipe, and the bottom of the protection pipe is provided with a plurality of holes. Or, the laser is communicated with the photoelectric receiver through a glass rod, the bottom of the glass rod is provided with a triple prism or a reflection device, the photoelectric liquid level sensor provided in the invention is arranged in the liquid, and the internal light transmission conditions are destroyed through changing the boundary condition of light transmission medium to result in that the output light intensity is in direct proportion to the liquid level height in order to measure the liquid level height. The sensor immerges into the liquid, adopts the optical device and has no electronic device, and thereby has the strong anti-electromagnetic interference ability and the good corrosion resistance and is particularly applied to the measurement of flammable and explosive liquid. The invention has the advantages of the small volume, the simple structure, the low cost, the convenient installation, no electric quantity in the liquid, and the safe and convenient measurement.

The present invention relates to a circulating fluid-bed circulating ash pneumatic control distribution valve. It includes the following several portions: high-temperature gas-solid separator, vertical breaker plate, first and second feeding chambers, first and second discharging chambers, first and second overflow holes, air distribution plate and air chamber. Said invention also provides the connection mode of all the above-mentioned portions and the working principle of said circulating ash pneumatic control valve.

This invention is a home mini ice machine, which is used to produce the squarely transparent ice. It includes the ice forming system and freezing system, which are all in the body of the machine. The talked ice system is made up by water box, ice storage box, ice model shelf, ice model, water spraying pipe, water pump, upper and lower water pipes and direction board for the ice. The ice model shelf is fixed on the upper of the water box, there is ice on the ice model shelf, and there is direction board for the ice under the ice model which can be turned over. The ice storage box is under the direction board for the ice and can be freely get and put, and the water pump fixed on the floor of the machine. The outline of the water case connects with the pump, through the inlet pipe the water pump connects with the water spray pipe, and there is many holes on the spray pipe which are toward to the surface of ice model. There is electromagnetic valve of water inlet on the rear of machine, the valve connects with the water inlet pipe which is on the top of water case. This ice from this invention can be squareness, with hole at the middle and solid, and the yield is high.

A gear unit comprises shafts (101,102) for connecting to an external mechanical system, at least one gear stage (103) between the shafts, a lubrication pump (104) for circulating lubricating oil through the at least one gear stage and bearings of the gear unit, a temperature sensor (105) for measuring temperature of the lubricating oil and supplying a temperature signal, an electrical motor (107) for driving the lubrication pump, and an electrical device (108) for controlling the electrical motor so that torque directed to the lubrication pump is below a torque limit. The torque limit is determined dynamically on the basis of the measured temperature of the lubricating oil.

The invention discloses an externally-assisted vibrating feeder which comprises a feeding compartment body, the underside of one end of the feeding compartment body is erected on an installed crusher driving shaft mechanism through a docked connecting rod device, and the other end of the feeding compartment body is erected on an installed crusher rack through an adjustable supporting device. According to the invention, through skillfully using the linked fixed installation of the feeder and a crusher, synchronously operating and using realistic conditions, removing a vibration exciter and adding a docked connecting rod device, a feeding operation is completed by using an exciting force generated by the rotary motion of the crusher driving shaft mechanism. In such a way, the feeder becomes extremely concise and light, the equipment manufacturing and running costs are greatly reduced, and the application and maintenance of the feeder are more convenient. Due to the versatility of the docked connecting rod device, the docked connecting rod device can be widely matched with different types of crushers (such as impact crushers and hammer crushers) for using purpose.

The invention provides a remote meter reading system, and relates to the technical field of communication. The remote meter reading system provided by the invention uses a Halle element and an acquirer matched with magnetic steel, the acquisition module is fixed on a mechanical character wheel through the magnetic steel to be matched with the Hall element (a sampling plate) so that the magnetic steel can rotate along with the rotation of the mechanical character wheel, and then a magnetic field emitted by the magnetic steel can be rotated; the sampling plate is capable of producing a sampling signal to finish the signal acquisition when the magnetic steel rotates to an appointed position. Compared with a reed switch, for the remote meter reading system, the Hall element is free of the mechanical failure, the reliability of the Hall element is higher than that of the reed switch, the service life is longer, the remote meter reading system is capable of accurately reading the scale of a meter, and the defect caused by the condition that the reed switch is used for signal acquiring in the prior art is solved.

The invention relates to a booster bicycle provided with a sensor with a plurality of unevenly distributed magnetic blocks on a chain disc, and in particular relates to an electric booster bicycle used for providing booster signals for a plurality of point positions in a way of magnetic induction. The sensor comprises a sensing element, a booster model processor, a digital/ analog (D/ A) converter and an operational amplifier which are sequentially connected, wherein the chain disc taken as the sensing element is fixedly provided with the plurality of permanent magnet blocks, and every two adjacent permanent magnet blocks have the opposite magnetic polarities; the distances among the permanent magnet blocks are different from one another; a Hall of the sensing element is arranged on a frame close to the permanent magnet blocks; and the operational amplifier is connected with a motor controller. The booster bicycle has the advantages that square-wave signals can be obtained by the Hall, the sensor can conveniently use an artificial set booster model through digital processing output, the boosting is reasonable in the starting point, the finishing point and the force, human can cooperate with a machine, and the electricity is saved.

The invention discloses a transformer verification system and a verification method. The verification system comprises a control cabinet, a self-boosting standard voltage transformer, a current transformer detection table, a two-dimensional code generation device, a code scanning gun and a PC. The control cabinet comprises a program-controlled voltage load box, a program-controlled current load box, a program-controlled transformer calibrator, a linear program-controlled electronic power supply and a control cabinet communication system. A current booster, a standard current transformer and acurrent transformer detection communication system are arranged in the current transformer detection table. A plurality of current transformers can be connected to the current transformer detection table. Error verification of the voltage transformers and the current transformers can be realized, full-automatic simultaneous error verification of multiple current transformers can be completed at the same time under the condition of one-time wiring of only one set of device, the verification efficiency is greatly improved, and manual wiring is less and simple.

The invention discloses a sensor with a plurality of magnet blocks adjustable in position and magnetic flux in a shell, belonging to the technology of providing a control signal via multi-point-position magnetic induction. The sensor comprises a sensing component, a power-assisted model processor, a digital-analogue converter and an operational amplifier which are sequentially connected, wherein the sensing component comprises permanent magnet blocks and a Hall sensor in inner hollows embedded in a rotating disc and a fixed disc, a plurality of the annularly-distributed permanent magnet blocks are fixedly arranged on the rotating disc, the distances among the permanent magnet blocks and the magnetic fluxes of the permanent magnet blocks at different positions are adjustable, and the magnetic polarities of the adjacent permanent magnet blocks are opposite, that is, the magnetic polarities are distributed by alternately arranging N-poles and S-poles; and the Hall sensor on the fixed disc is arranged at a position close to the permanent magnet blocks. The sensor has the following advantages that: the Hall sensor can obtain a rectangular wave signal via the NS distribution of the magnetic poles, and the rectangular wave signal can participate in digital processing for setting the power-assisted model; and the rectangular wave signal can show the positions of the permanent magnet blocks on the rotating disc and determine the purposes of different rectangular waves by virtue of the difference of the distances and the difference of the magnetic fluxes, and the relative positions of the permanent magnet blocks and the Hall sensor are fixed, so that signal output is reliable.

The invention discloses a vacuum sewage discharging type dejectas collecting system. The vacuum sewage discharging type dejectas collecting system comprises a main-seat type toilet, a sub-seat type toilet, an urination room, a shower room, a sewage tank and a pure water tank, wherein the main-seat type toilet, the sub-seat type toilet and the urination room are connected with the sewage tank; the main-seat type toilet, the sub-seat type toilet, the urination room and the shower room are connected with the pure water tank; a water outlet of the pure water tank is provided with a supercharger; a main control panel is arranged in the main-seat type toilet; a first auxiliary control panel, a second auxiliary control panel and a third auxiliary control panel are respectively arranged in the sub-seat type toilet, the urination room and the shower room; the main control panel is connected with the first auxiliary control panel; and the first auxiliary control panel is respectively connected with the second auxiliary control panel and the third auxiliary control panel. As the whole water feeding and water draining process is controlled through a solenoid valve, the vacuum sewage discharging type dejectas collecting system is convenient to operate without mechanical faults; and as sewage and dirt cannot be discharged of a vehicle body, the environmental sanitation along the railway line is greatly protected; and as the toilet can be stilled used while a train arrives a station, the vacuum sewage discharging type dejectas collecting system provides great convenience to passengers while in use.

The invention relates to a booster bicycle provided with a sensor provided with a plurality of magnetic blocks with unevenly distributed magnetic fluxes in a shell, and in particular relates to an electric booster bicycle used for providing booster signals for a plurality of point positions in a way of magnetic induction. The sensor comprises a sensing element, a booster model processor, a digital/ analog (D/ A) converter and an operational amplifier which are sequentially connected, wherein the sensing element comprises the permanent magnet blocks and a Hall which are respectively arranged in a space where a rotary table and a fixed table are embedded; the rotary table is provided with the plurality of permanent magnet blocks, and every two adjacent permanent magnet blocks have the opposite magnetic polarities and different magnetic fluxes; the Hall arranged on the fixed table is arranged at the position close to the permanent magnet blocks; the sensor is sheathed outside a centre shaft of the bicycle; and the operational amplifier is connected with a motor controller. The booster bicycle has the advantages that the relative positions between the permanent magnet blocks and the Hall are fixed, square-wave signals can be obtained by the Hall, the sensor can conveniently use an artificial set booster model through digital processing output, the boosting is reasonable in the starting point, the finishing point and the force, human can cooperate with a machine in a best way, and the electricity is saved.

The invention discloses an assisted bicycle using a sensor with non-uniform distribution of multiple magnetic blocks in a housing, and belongs to an electric assisted bicycle capable of providing assisting signals by multi-point magnetic induction. The sensor comprises a sensing element, an assisting model processor, a digital-analog converter and an operational amplifier, which are sequentially connected, wherein the sensing element comprises a rotating disk and a fixed disk, permanent magnets and Halls are arranged in internal space, a plurality of the permanent magnets, which have the opposite magnetic polarities in the adjacent permanent magnets and can regulate the intervals and the positions with different magnetic fluxes, are arranged on the rotating disk, and the Halls on the fixed disk are arranged in the positions near the permanent magnets. The sensor is sheathed outside a center shaft of the bicycle, and the operational amplifier is connected with a motor controller. The assisted bicycle has the advantages that the relative positions of the permanent magnets and the Halls are fixed, and the Halls can obtain rectangular wave signals, so that the sensor can conveniently output an assisted model which is artificially set and can be regulated by digital processing to realize reasonable start point and end point of assisting, as well as reasonable force, enable a person and a machine to realize optimal matching and save electricity.

The invention relates to a road well lid and discloses a safety protection washer device for the road well lid. The safety protection washer device for the road well lid is provided with a protection washer, at least two washer supporting frames, a telescopic traffic barrier cone and a protection rope net, wherein the washer supporting frames are fixed on the inner wall of an inspection well; the protection washer is arranged on the washer supporting frames; the telescopic traffic barrier cone is installed on the top of the protection washer; the protection rope net is arranged on the inner ring of the protection washer. The top of the protection washer is attached to the inspection well lid so as to avoid noise, and the protection washer can be a tyre, especially a used tyre. The washer supporting frames can be three to six fixing screws, and the fixing screws are evenly distributed on the inner wall of the inspection well. The fixing screws can be provided with buckles used for buckling the protection washer. The protection rope net can be a woven net in a cross shape, shaped like a Chinese character 'jing' in an X shape, in a * shape or the like. The telescopic traffic barrier cone can be a telescopic conical traffic red and white warning pull cover. The safety protection washer device for the road well lid is simple in structure, low in manufacturing cost, good in safety and good in environmental protection property.

The invention discloses a multi-magnetic block position-adjustable turntable sensor for an assisted bicycle, and belongs to the technology of providing a control signal by performing multi-point magnetic induction. The multi-magnetic block position-adjustable turntable sensor for the assisted bicycle comprises a sensing element, an assistance model processor, a digital-to-analogue converter and an operational amplifier which are connected in sequence; the sensing element is a plurality of permanent magnet blocks with adjustable space which are arranged on a turntable; the magnetic polarities of adjacent permanent magnet blocks are opposite, namely the distribution way is pole N, pole S, pole N, ellipsis; and a Hall element is arranged at the position close to the permanent magnet blocks. The multi-magnetic block position-adjustable turntable sensor for the assisted bicycle has the advantages that the Hall element can acquire square-wave signals by utilizing the NS opposite distribution way of the magnetic polarities of the adjacent permanent magnet blocks, and digital processing of the signals is facilitated; the square-wave signals can represent the positions of the permanent magnet blocks on the turntable by adjusting the distance among the permanent magnet blocks, and the application of different square waves are determined; and the sensor can output control model electric signals which are matched with the movement position of the permanent magnet blocks and are set artificially.

The invention discloses a household single-phase series excitation stirrer motor. The household single-phase series excitation stirrer motor comprises a stator iron core, wherein a stator enameled wire is arranged on the stator iron core by a masking tape, a rotor is arranged in the stator iron core, a front end cover and a rear end cover are respectively arranged at two ends of the rotor by bearings, the front end cover, the stator iron core and the rear end cover are connected by a bolt with an elastic gasket, a carbon brush sleeve is arranged on a side wall of the rear end cover, a carbon brush is arranged in the carbon brush sleeve by a rivet, a fan is arranged at a rear end of the rotor and is arranged at an outer side of the rear end cover, the stator enameled wire is connected with a red lead and a black lead, a 0.47-microfarad yellow capacitor is arranged between the red lead and the black lead, a tin immersion end with a length of 6 millimeters is arranged at an end part of the red lead, a wire stripping end with a length of 12 millimeters is arranged at an end part of the black lead, and the stator enameled wire is further connected with an inductor. By the household single-phase series excitation stirrer motor, the motor spark can be improved, temperature rise is relatively low, and the radiation to a human body is further improved.