39results about How to "Low operating efficiency" patented technology

The invention discloses an oil pipeline simulation analysis system, relates to the technical field of oil pipelines, and provides accurate data support for subsequent dynamic monitoring and pipeline cleaning decision by constructing a three-dimensional visual model and identifying wax precipitation temperature and deposition risk in time. Through the risk identification module, the system can analyze and calculate the wax precipitation temperature based on the oil product attribute data obtained in real time, and timely judge whether the deposition risk exists in the oil pipeline or not. After receiving a dynamic tracking instruction, the dynamic analysis module can obtain the deposition thickness of each position in a pipeline in real time and analyze the influence of oil temperature and flow velocity changes on deposition distribution, the analysis provides important input data for the pipe cleaning module, the deposition thickness and a heat loss coefficient are fitted through a deep learning technology, and the deposition thickness and the heat loss coefficient are matched with each other. The system may automatically calculate a delivery stability score. When the conveying stability score exceeds a set threshold value, the system can automatically start a pigging measure execution mechanism.

The invention relates to an air conditioner temperature and humidity independent control system and method based on two-stage coil chilled water. On the basis of the existing chip plant temperature and humidity independent control based on a fresh air processing unit, a return air drying and cooling coil and a fan filtering unit, low-temperature chilled water outlet of a water chilling unit firstly passes through a fresh air re-cooling coil; return water obtained after the temperature of the fresh air re-cooling coil pipe rises serves as water supply of the fresh air pre-cooling coil pipe and the return air cooling dry coil pipe, so that two-stage coil pipe chilled water is formed, and the return water of the fresh air pre-cooling coil pipe and the return water of the return air cooling dry coil pipe are mixed and then serve as chilled water return water of the water chilling unit. By increasing the return water temperature of the water chilling unit, the average evaporation temperature of an evaporator of the water chilling unit is increased. A bypass is arranged between an inlet and an outlet of the return air cooling dry coil, and the air temperature in the plant is controlled by adjusting the bypass flow through an electric two-way adjusting valve and a PID controller. Compared with the prior art, the invention has the advantages of high unit energy efficiency ratio, low refrigeration energy consumption, simplified system and the like.

The invention discloses a security protection method for convergence and distribution equipment based on data intelligence, relates to the technical field of security protection of the convergence and distribution equipment, and solves the technical problem that in the prior art, multi-service execution security analysis cannot be carried out on the convergence and distribution equipment, so that the traffic control security is reduced, in particular to service security analysis. Safety analysis is performed on equipment operation services in the operation process of the convergence and distribution equipment, monitoring control is performed on the operation services of the convergence and distribution equipment, and safety analysis is performed on service execution according to service requirements, so that potential safety hazards existing in service execution are avoided, and the operation safety of the convergence and distribution equipment is reduced; and the security reduction of other security execution services is also influenced.

The invention relates to the technical field of energy storage, and discloses a constant-pressure compressed air energy storage device and an energy storage system.The constant-pressure compressed air energy storage device is characterized in that an energy storage library is divided into a first closed cavity and a second closed cavity by a flexible air bag; first fluid is stored in the second closed cavity; the interior of the flexible air bag is communicated with the second closed cavity; during energy storage, compressed air enters the first closed cavity, the flexible air bag is compressed, the size of the first closed cavity is increased, the first fluid in the second closed cavity is compressed and liquefied, and temperature rise and pressure rise of the compressed air are relieved; during energy release, the first fluid is heated, the first fluid absorbs heat to be gasified and transfers heat to the compressed air, the flexible air bag expands, the size of the first closed cavity becomes small, and air is exhausted. During energy storage, gas storage is approximate to constant pressure, temperature and pressure increase of the first closed cavity is slowed down, more air is stored, and power consumption is reduced; and during energy release, temperature and pressure reduction is relieved, approximate constant pressure is achieved, and output air energy is increased.

The invention relates to an intelligent photovoltaic curtain wall which has the function of adjusting light transmission intensity. The surface of the photovoltaic curtain wall is fully covered by the photovoltaic module, the supporting body is installed behind the photovoltaic battery module, and the photovoltaic module is fixed on the supporting body through the module fastener. Air hole channels are arranged among the photovoltaic modules to adjust temperature, and air holes can be connected with external constant-temperature systems such as a central air conditioner, so that the photovoltaic curtain wall has good constant-temperature capability. The photovoltaic cell is located between the guide rails, and the controller controls the driving motor to achieve movement of the cell position, so that the light transmission intensity is adjusted in good time. A mechanical arm and a control motor are arranged in the photovoltaic cell storage box and used for storage and output of photovoltaic cells, and the control motor receives instructions of the controller to operate. The controller is connected with the driving motor and the control motor through data lines, the shielding area ratio of the photovoltaic cell is automatically adjusted according to user requirements, and automatic adjustment of the light transmission intensity is achieved.

The invention discloses an air conditioner low-frequency operation control method and system, relates to the technical field of air conditioner low-frequency operation control, and solves the technical problems that in the prior art, an air conditioner low-frequency operation decision cannot be synchronously analyzed according to the environment and environmental influence, and an air conditioner cannot be accurately controlled to enter a low-frequency operation state. The method specifically comprises the steps that a low-frequency operation decision-making unit conducts decision analysis on low-frequency operation of the air conditioner, decision-making information is obtained, air conditioner low-frequency operation decision-making coefficients are obtained according to a formula, whether low-frequency operation is executed currently or not is deduced through operation decision-making coefficient comparison, and meanwhile after low-frequency operation is executed through analysis, the low-frequency operation is executed. And the frequency conversion decision detection unit performs frequency conversion decision detection on the low-frequency operation time period of the air conditioner, acquires frequency conversion risk duration data and frequency conversion risk influence data in the operation time period, and deduces whether the frequency conversion decision detection is abnormal or not according to data comparison, if yes, regulation and control are performed, and if not, low-frequency operation is continuously performed.

The invention discloses a new energy scheduling system based on wind-solar complementation, and belongs to the technical field of grid-connected scheduling, and the system specifically comprises the steps: obtaining the predicted output power of a new energy power station, and determining the target output power of the new energy power station according to the predicted output power; presetting a monitoring period, drawing a time-varying curve of the output power of the new energy power station, obtaining all coordinate points with the generated power being the target output power in the changing curve, and marking the coordinate points as reference points; dividing the change curve into a plurality of sub-curves by taking any adjacent reference point as a division point, and calculating a risk coefficient of the new energy power station according to the plurality of sub-curves; and obtaining a deviation value of the new energy power station, determining the grid-connected new energy power station according to the risk coefficient and the deviation value Pc, and performing three-phase division on all the grid-connected new energy power stations, thereby reducing the three-phase load imbalance of the power grid during grid connection of the new energy power station, and improving the operation stability and the operation efficiency of the power grid.

The invention relates to the technical field of wind power plants, in particular to a wind power plant scheduling method and system based on fatigue distribution. Comprising the steps of establishing a plurality of fan points according to wind turbine generator parameters; establishing a plurality of adjustment periods according to the historical environment parameters, and generating expected power of each fan point in the current adjustment period according to a preset power prediction model; generating an initial scheduling strategy according to the power grid scheduling instruction in the current adjustment period and the expected power of all the fan points; obtaining a fatigue evaluation value of each fan point according to a preset feedback time node, and judging whether to correct the initial scheduling strategy or not according to all the fatigue evaluation values; and generating an initial scheduling strategy according to the operation parameters of each wind turbine generator, and performing optimization adjustment on the initial scheduling strategy according to all fatigue evaluation values, thereby optimizing the uniformity of fatigue distribution of the wind power plant, prolonging the service life of the wind power plant and reducing the operation and maintenance cost of the wind power plant on the premise of not losing the generating capacity.

The utility model relates to a vanadium battery energy storage and boosting all-in-one machine, which belongs to the technical field of vanadium batteries and comprises a movable direct-current converter, a plurality of bidirectional converters and a transformer. The plurality of bidirectional converters are connected with the plurality of vanadium batteries through the plurality of direct-current power switches and are connected with the transformer through a low-voltage bus, and the transformer is connected to a power grid; when the vanadium battery is in a low-voltage state, the corresponding direct-current power switch of the vanadium battery is switched off, the movable direct-current converter is connected with the corresponding direct-current power switch in parallel through the parallel interface, and alternating-current voltage input by a power grid is converted into battery activation voltage through the transformer, the corresponding bidirectional converter and the movable direct-current converter. According to the utility model, a common charging voltage is converted into a battery activation voltage required by the vanadium battery by adopting the accessed mobile direct-current converter, and the mobile direct-current converter can be moved out after starting, so that the running efficiency of the energy storage system is prevented from being reduced while zero-voltage starting is realized.

The invention discloses an insulated gate bipolar transistor operation power loss test system, relates to the technical field of power loss test, and solves the technical problem that in the prior art, loss test analysis cannot be carried out on operation power, so that the operation efficiency cannot be ensured. Specifically, an operation influence analysis unit analyzes the operation influence of the electric control equipment, collects a time consumption influence parameter and a temperature influence parameter of the electric control equipment, and analyzes and judges whether the operation influence is abnormal or not according to the parameters; the power loss test unit is used for performing power loss test on the electric control equipment, acquiring power floating information and duration delay information of the electric control equipment, and analyzing and judging whether the power loss test is qualified or not according to the information; whether the current electric control equipment loss test is qualified or not is judged according to the real-time power floating detection, so that the operation of the electric control equipment is monitored in real time, and timely regulation and control are facilitated when the electric control equipment is monitored to be abnormal.

The present invention discloses an emergency safety control method for a wind turbine generator set, which belongs to the technical field of wind power control, and specifically comprises: obtaining the predicted output power of the wind turbine generator set, and determining the target output power of the wind turbine generator set according to the predicted output power; presetting a monitoring period, drawing a curve of the output power of the wind turbine generator set changing with time, obtaining all coordinate points in the change curve where the power generation power is the target output power and marking them as reference points; dividing the change curve into a plurality of sub-curves with any adjacent reference point as a dividing point, and calculating the risk coefficient of the wind turbine generator set according to the plurality of sub-curves; obtaining the deviation value of the wind turbine generator set, determining the grid-connected wind turbine generator set according to the risk coefficient and the deviation value, and performing three-phase division on all grid-connected wind turbine generator sets. The present invention reduces the imbalance of the three-phase load of the power grid when the wind turbine generator set is connected to the grid, and improves the operation stability and operation efficiency of the power grid.

The invention relates to the technical field of heat dissipation devices, and discloses a low-noise heat dissipation fan, comprising a base and double-layer blades, wherein a bearing is arranged at the center of the base, and a stator is arranged in a circumferential array on the side surface of the bearing, the stator is an iron core, and is wrapped by a painted coil to form an electromagnet, the energization state of the coil is controlled by a control circuit, and a Hall sensor is arranged for detection, the double-layer blades are composed of a rotor, a connecting ring and blades, the rotor is located at the axis center of the double-layer blades, and is cylindrical, a crankshaft connected to the stator is arranged at the axis center of the bottom of the double-layer blades, blades are arranged in a circumferential array on the side surface of the rotor and are connected to the connecting ring, and blades are also arranged in a circumferential array on the outer side surface of the connecting ring to form a double-layer blade structure, the inner wall surfaces of the rotor and the connecting ring are evenly arrayed with permanent magnets, and the permanent magnets located in the connecting ring and the permanent magnets in the rotor are arranged at different angles.

The utility model relates to cold-rolled bar cooling bed sampling equipment which comprises a rack, a placing plate used for stacking bars is arranged on the rack, the placing plate is obliquely arranged in the length direction of the placing plate, a placing frame used for allowing a single bar to enter is arranged at the lowest end of the placing plate, the placing frame extends in the width direction of the placing plate, and the placing plate is arranged in the placing frame. The rack is provided with a pushing assembly used for pushing the bars in the containing frame to move in the length direction of the bars, and the pushing assembly is arranged in the length direction of the containing frame. According to the bar drawing device, bars roll downwards into the placing frame on the placing plate, the pushing assembly pushes out the bars stacked in the placing frame, the bars to be drawn are placed in the placing frame, the possibility that the drawing difficulty is increased due to the fact that the bars to be drawn are squeezed is reduced, one ends of the bars are pushed out through the pushing assembly, next-step drawing of the bars is facilitated, and the drawing efficiency of the bars is improved. And therefore, the bar drawing difficulty is reduced, and the bar drawing speed is increased.

The present invention discloses a system for supervising operation of integrated photovoltaic storage and charging equipment based on data analysis, relates to the technical field of equipment operation supervision, and solves the technical problem in the prior art that it is impossible to perform equipment operation evaluation and execution prediction analysis on integrated photovoltaic storage and charging equipment. Specifically, an energy storage decision analysis unit performs energy storage decision analysis on the integrated photovoltaic storage and charging equipment, marks the integrated photovoltaic storage and charging equipment as a monitoring object, and a discharge decision analysis unit performs discharge decision analysis on the monitoring object. After the energy storage decision analysis unit and the discharge decision analysis unit generate a normal energy storage decision signal and a normal discharge decision signal respectively, the equipment operation evaluation unit evaluates the power operation execution equipment of the monitoring object, and the execution prediction analysis unit analyzes and monitors the execution prediction of the monitoring object to determine whether the execution prediction of the operation decision of the monitoring object is reasonable.

The present application relates to the technical field of cryptographic cloud resources, and in particular to a virtual cloud cryptographic resource processing method and system. Establish a cloud cryptographic resource pool, and generate multiple resource groups based on the cloud cryptographic resource pool; obtain user demand parameters, generate resource demand quantities based on user demand parameters, and generate resource allocation parameters based on resource demand quantities; obtain the real-time load evaluation value of each resource group based on the feedback time node, and correct the resource allocation parameters based on the load evaluation value. By setting up multiple resource groups, the cloud cryptographic resource pool is dynamically divided, and virtual machines are established according to user needs, and deployed in sequence to ensure on-demand allocation of cryptographic resources and improve allocation efficiency. By presetting the feedback time node, the resource amount of the resource group is dynamically adjusted to avoid waste of resources due to excessively high resource vacancy rate of a single resource group, and at the same time avoid the reduction of task processing speed and operating efficiency due to excessive growth in user demand, so as to ensure load balancing of each resource group.

The invention relates to the field of glass kiln combustion energy conservation and waste heat utilization, in particular to a glass kiln combustion optimization and flue gas analysis evaluation method, which comprises a kiln, the kiln comprises a heat storage chamber, a small furnace, a branch flue and a main flue, and further comprises a DCS system, an on-line flue gas analyzer and a detection unit, the DCS system is electrically connected with the on-line flue gas analyzer, and the on-line flue gas analyzer is electrically connected with the detection unit. The on-line flue gas analyzer is electrically connected with a plurality of detection units, the plurality of detection units are respectively arranged in a heat storage chamber, a branch flue and a main flue, and the on-line flue gas analyzer receives flue gas data of the detection units and transmits the flue gas data to a DCS (Distributed Control System) in the form of a digital signal. The combustion state of the small furnaces is optimized by collecting the flue gas data of the upper part of the heat storage chamber in real time, calculating the air / fuel ratio of each small furnace and accurately adjusting the combustion air amount in combination with the DCS, so that the combustion efficiency is improved, and the fuel waste is reduced.

The invention discloses a distributed vibration bilateral servo electric cylinder driving control system for a membrane bioreactor, relates to the technical field of electric cylinder driving control, and solves the technical problems that in the prior art, motors on the two sides cannot be regulated and controlled during operation of the membrane bioreactor, so that the balance of the positions of the left and right ends of the motors on the two sides cannot be ensured. The motor leveling control unit is used for conducting motor regulation and control on the driving process, collecting motor leveling information, substituting the motor leveling information into a formula to obtain a motor leveling control coefficient, and conducting comparison according to a coefficient threshold value to deduce whether motor regulation and control are normal or not. The driving control monitoring unit obtains control deviation information and control delay information, and deduces whether driving control monitoring is normal or not according to information comparison; and the electric cylinder control analysis unit is used for collecting electric cylinder adjustment data and electric cylinder position data and deducing whether electric cylinder control is normal or not according to data analysis and comparison.

A hydrogen generator with hydrogen leakage self-aware function comprises an electrolytic module, an integrated passageway device, a condensate filter, a humidification cup, a housing, an internal hydrogen sensing component, and a monitoring device. The electrolytic module is configured to electrolyze an electrolyzed water to generate a gas comprising hydrogen. The integrated passageway device comprises gas inlet passageway and a gas outlet passageway. The condensate filter is configured for filtering the gas comprising hydrogen. The humidification cup is configured for humidifying the gas comprising hydrogen. The gas comprising hydrogen flows through the condensate filter and the humidification cup by the way of the integrated passageway device. The internal hydrogen sensing component is configured in the housing for sensing the hydrogen concentration in the housing to generate an internal sensing result. The monitoring device is coupled to the internal hydrogen sensing component. The monitoring device controls the operation of the hydrogen generator according to the internal sensing result to avoid the hydrogen generator from the problem caused by hydrogen.

The utility model discloses an automatic button folding carp copy net head relates to the technical field of copy net, including the casing, the casing is triangle, two fixed blocks are fixed on the upper and lower two sides of casing, the casing is provided with the limiting mechanism, and the limiting mechanism includes two fixed posts fixed in the casing, and the fixed post end stretches into the fixed block, the casing is provided with two symmetrical rotating posts, and the fixed post is rotatably connected with the rotating post, and the fixed post penetrates the rotating post, the casing one end is provided with two removal grooves, and the rotating post is located in the removal groove and stretches out the casing, and the rotating post is fixed with the support column away from the one end of fixed post, and the spring is sleeved on the limiting column, and the spring end all is fixedly connected with the fixed sleeve, the removal block, and the limiting column lower extreme is provided with the sliding column. Through limiting mechanism, it is convenient for the folding and unfolding of copy net, and it is convenient to place, reduces the occupation of space, reduces the influence to user's operation efficiency and use experience.

The application relates to an automobile battery intelligent charger, and belongs to the technical field of automobile battery chargers. The charger comprises a charging pile device, a charging pile shell is externally mounted on the charging pile device, a switch button is mounted on the front end outer wall of the charging pile shell, a ventilation opening is mounted on one side of the charging pile shell, a supporting rod is mounted on the inner wall of one side of the charging pile shell, a wire box is sleeved on the outer surface of the supporting rod, and an electric box is mounted on the bottom inner wall of the charging pile shell. The automobile battery intelligent charger is stored downwards through the charging gun, rainwater and dirt can be naturally dropped, no additional waterproof accessories are needed, maintenance cost is reduced, outdoor use is more stable and durable, double motors are synchronously linked, door opening, wire laying, cleaning and lifting are completed through one key, the wire cable is not prone to damage, an automatic cleaning and dust suction assembly is arranged inside, the gun head is cleaned when being homed, gap dust is completely removed, manual maintenance is reduced, and the service life of the equipment is prolonged.

The application discloses a kind of air supply equipment and gas water heater, it is related to water heater technical field.The air supply equipment includes volute, air supply wheel, motor and heat insulating material piece;Volute is equipped with fan flow channel;Air supply wheel is located in fan flow channel;Motor includes the motor body and motor shaft connected, motor body is located in the side of volute, motor shaft is inserted into fan flow channel, and is transmissionally connected with air supply wheel;Heat insulating material piece is located between motor body and volute, heat insulating material piece is configured to block the heat transfer in fan flow channel to motor body.The technical scheme of the application can prevent motor temperature rise too high, and solve the problem of motor performance decline simultaneously.

The invention is suitable for the technical field of nuclear power equipment management, and provides a nuclear power feed pump control system and method and electronic equipment, and the system comprises a control module which is used for executing a speed raising control sequence which comprises the control steps of starting a nuclear power feed pump and controlling the rotating speed of the nuclear power feed pump to reach the speed raising control of a target rotating speed; the interaction module is used for obtaining and displaying actual state information of target components of the nuclear power feed pump in the process that the control module executes the speed raising control sequence, the target components at least comprise components involved in the control step, and the actual state information reflects current state information of the target components; and the monitoring module is used for monitoring the actual state information of the target component and generating first alarm information based on the abnormal actual state information when it is monitored that the actual state information is abnormal, and the first alarm information is used for indicating that the state of the target component is abnormal. According to the invention, the manual dependence of the speed raising control of the nuclear power feed pump can be reduced.

The invention belongs to the technical field of ash pollution monitoring, and discloses a transfer learning-based boiler heating surface ash pollution quantitative characterization method, which comprises the following steps of: establishing a boiler-boiler coupling model of a research object boiler by virtue of analog simulation software, and adopting a method of combining simulation modeling with actual verification. And the transfer learning-based boiler heating surface ash dirt quantitative characterization method is researched. The model and the dirt label which are established in the simulation data and are used for verifying the accuracy are migrated to the same actual heating surface for dirt quantitative characterization modeling, so that the modeling difficulty is reduced, the modeling speed is increased, the required data volume is small, and the dust deposition trend of the actual heating surface can be obtained through effective fitting. The method effectively solves the problem that the actual operation data of the boiler unit lacks a characterization dirt label and cannot provide guidance for subsequent soot blowing optimization, and has a certain application prospect.

The application belongs to the technical field of gluing machines, and discloses a gluing machine for glass surfaces, which comprises a frame, an adjusting and transferring assembly, a glue spraying part and a valve wiping mechanism arranged in the frame, the frame is provided with an inlet and an outlet, the glue spraying part is arranged on the adjusting and transferring assembly, and the valve wiping mechanism is arranged on one side of the adjusting and transferring assembly; a transition stage assembly is arranged at the inlet of the frame; a feeding module is arranged on the side of the transition stage assembly away from the inlet; a material moving assembly is arranged at the joint of the transition stage assembly and the feeding module; and a discharging module is arranged at the outlet of the frame. The gluing machine for glass surfaces can realize automatic glass feeding, accurate positioning, continuous gluing and automatic discharging through the cooperation of the gluing assembly, the transition stage assembly, the feeding module, the material moving assembly and the discharging module, and the automation and continuity of the glass gluing process are improved.

The invention discloses a transformer-free modular multi-terminal flexible interconnection controller series connection current limiting method and system, and relates to the technical field of short circuit current limiting and power electronics, and the method comprises the steps: locking a power electronic device at the moment of a power transmission line fault, and stopping the current from passing through the power electronic device; a TBS bypass power electronic device is started, so that fault current passes through a bypass channel; a current-limiting inductor is put into the line, and short-circuit current flowing through the line is reduced through the current-limiting inductor. Through a transformer-free design, a current-limiting inductor, a TBS bypass, a power flow regulation module (PFCM), an SPWM modulation mode, voltage phase angle control and the like, the problems of large equipment size, high cost, short-circuit current diffusion, slow fault recovery, low control precision and the like in the prior art are effectively solved respectively. The beneficial effects are obviously superior to the existing technical scheme in the aspects of fault response, recovery speed, stability, cost control and the like of the system.

The present invention provides an elevator capable of suppressing the reduction of the elevator's operating efficiency when the car door is opened in a non-contact manner by making a non-contact sensor detect an obstruction. The elevator (10) is configured to be able to operate the car door (22A, 22B) provided in a passenger car (22) in a non-contact manner, and comprises: a door opening sensor unit (35) for detecting light blocking in order to perform the door opening operation of the car door (22A, 22B) in a non-contact manner; and a control device (46) for executing a door opening mode for opening the car door (22A, 22B), and when the state in which the door opening sensor unit (35) is detecting light blocking changes to a state in which light blocking is not detected during the execution of the door opening mode, the control device (46) executes a door closing mode for closing the car door (22A, 22B) after a first specified time has passed since the moment of the change, i.e., the first non-detection moment.

The utility model belongs to the technical field of cable peeling, and relates to efficient cable peeling equipment for electric power construction, which comprises a processing platform, a first servo motor is mounted on one side of the top of the processing platform, a supporting plate is fixedly connected to one side of the top of the processing platform, and a first driven shaft is rotatably connected to the top of the supporting plate. The output end of the first servo motor is rotationally connected to the middle of the supporting plate, two first synchronous belt wheel sets are installed in the middle of the first driven shaft, and the other ends of the two first synchronous belt wheel sets are installed at the output end of the first servo motor. According to the utility model, through the arrangement of the guiding and supporting assembly, the tail part of a cable which is being peeled can be guided and supported, so that the situation that the tail part of the cable is in a free overhanging state due to loss of fixed constraint and droops and bends under the action of gravity when the cable is peeled is reduced; the drooping bending easily causes the cable to be in a non-linear stress state, so that a reverse force is generated between the cable and the inner gear.

The utility model discloses stamping metal plate conveying and distributing equipment which comprises a supporting frame, a first conveying belt is installed in the supporting frame, a second conveying belt is installed on one side of the supporting frame, sliding grooves are formed in the two sides of the supporting frame, sliding plates are movably connected into the sliding grooves, and fixing plates are fixedly connected to the upper surfaces of the sliding plates. A guide rod is inserted into the fixing plate, one end of the guide rod is fixedly connected with a connecting frame, the bottom end of the connecting frame makes contact with the sliding plate, one side of the fixing plate is fixedly connected with a spring, and the spring is fixed to the connecting frame. According to the metal plate distributing device, metal plates of different sizes can be automatically distributed, meanwhile, the height of the stop lever can be adjusted and fixed through matched use of the clamping plate and the clamping groove, and the metal plates on the first conveying belt can smoothly pass through the baffle to be moved to the second conveying belt through the balls.

The present application relates to the field of bottle blowing machine, especially to a high-precision stable variable distance mechanism in a bottle blowing machine, comprising: a support, a guide blank groove is arranged on the support; a ring-shaped guide rail is arranged on the support, an initial area, a variable distance maintaining area, a bottle pushing area and a material taking area are arranged on the ring-shaped guide rail; a hinge plate assembly is composed of hinge plates which are sequentially hinged together, second and third circular guide members are arranged on the hinge plates, first and second circular guide members are rollingly clamped in the ring-shaped guide rail; a plurality of bottle pushing assemblies are fixed on corresponding hinge plates, bottle pushing assemblies in the initial area are in a non-bottle pushing state, bottle pushing assemblies in the variable distance maintaining area are changed to a bottle pushing state, bottle pushing assemblies in the bottle pushing area are in a bottle pushing state, bottle pushing assemblies in the material taking area cooperate with a material taking mechanism to take out bottle blanks; a sprocket drives the hinge plate assembly to move along the ring-shaped guide rail. The present application is not easy to be stretched during operation, thereby having high stability and high positioning precision.

The invention relates to an air conditioner outdoor unit, in particular to a grille assembly and an air conditioner outdoor unit, and aims to solve the problem that wind resistance of an existing grille cannot be adjusted in a limited mode. In order to achieve the purpose, the grille assembly comprises an elastic grille net and an adjusting piece, the edge of the elastic grille net is fixedly arranged, and the adjusting piece is connected to the middle of the elastic grille net; the adjusting piece can move relative to the elastic grating net, so that the elastic grating net is elastically deformed, and the gap size of the elastic grating net is adjusted. According to the grille assembly, dynamic adjustment of grille gaps is achieved through movement of the adjusting piece relative to the elastic grille net, and the overall ventilation and protection performance is improved. The design is simple, the adaptability is high, the device is suitable for various scenes needing ventilation and protection, such as outdoor air conditioners and ventilation equipment, and the reliability of the equipment is improved while the ventilation efficiency is guaranteed.