334results about How to "Guaranteed operational safety" patented technology

The embodiment of the invention discloses a control method and device of automatic cleaning equipment and related equipment, the automatic cleaning equipment comprises an equipment body and a mechanical arm arranged on the equipment body, the equipment body is provided with a first sensor, and the mechanical arm is provided with a second sensor. The mechanical arm is controlled to extend out of the equipment body, the automatic cleaning equipment is controlled to move in the working environment, and visual information is collected through a first sensor and a second sensor in the moving process; in response to the high-altitude area identified according to the visual information collected by the second sensor, the automatic cleaning equipment is controlled to move to the position below the high-altitude area; the mechanical arm is controlled to enter a high-position scanning posture, and visual information of a high-altitude area is collected through a second sensor; and the visual information collected by the first sensor and the second sensor in the mapping mode is fused to establish a map of the working environment, so that the navigation capability and the obstacle avoidance capability of the automatic cleaning equipment are improved.

The invention relates to the technical field of slope disaster monitoring, in particular to a high and steep slope geological disaster monitoring method and system based on multi-source data fusion. The method comprises the following steps: tracking surface deformation through PS-InSAR time sequence analysis and atmospheric phase correction to obtain surface deformation characteristics; identifying the apparent diseases of the slope, and extracting spatial and temporal distribution characteristics of the apparent diseases of the slope; analyzing spatio-temporal evolution characteristics under geologic structure constraints by utilizing slope rock mass structure characteristics and the earth surface deformation characteristics; according to underground water level dynamic and potential sliding surface weakening features and the slope apparent disease spatial and temporal distribution features, extracting disaster-causing key factor features after cooperative correction; and combining the disaster-causing key factor characteristics, the true three-dimensional geological environment background characteristics and the spatio-temporal evolution characteristics to analyze the comprehensive early warning grade and the potential instability mode of the landslide. Scientific support is provided for high and steep slope geological disaster prevention and control, and engineering construction and operation safety can be guaranteed.

The invention discloses a method and a system for monitoring pressure abnormity of a fuel oil common rail pipe of a marine main engine. The method comprises the following steps: acquiring historical operation parameter data and constructing a data set; the historical operation parameter data comprises historical host load data, historical host rotating speed data and historical fuel oil common rail pressure data; historical operation parameter data are preprocessed, an SVDD model is constructed and trained based on the historical operation parameter data, the model obtains a historical normal data hyper-sphere in a three-dimensional feature space, and the center and the radius of the hyper-sphere are obtained; similarly, real-time operation parameter data collected in real time are preprocessed and then input into the model, the distance between the real-time operation parameter data and the center of the hypersphere is obtained, and the value of the distance is compared with the value of the radius of the hypersphere in historical normal data; and when the numerical value of the distance is large, it is judged that the real-time operation parameter data is within an abnormal range, the fuel oil common rail pressure of the ship main engine is in an abnormal state, and an alarm signal is triggered. The method has the effect of low error rate.

The invention provides a ground laser positioning mountainous area multi-machine lifting cooperative control method and system, and relates to the technical field of cooperative control, and the method comprises the steps: 1, calculating a first real-time pose of an aircraft through a laser positioning signal transmitted by a laser positioning base station; according to the image data of the three optical identification points, calculating spatial three-dimensional coordinates of the three optical identification points to define a spatial geometric curved surface patch, and decomposing the curved surface patch into a strong signal manifold and a weak signal homotopy group; 2, taking the optical identification point of the central point of the upper edge of the front end surface of the load structure as a spatial reference origin, and connecting the two optical identification points of the left vertex and the right vertex of the lower edge of the rear end surface to form a first spatial vector and a second spatial vector; through laser positioning signal partitioning, load pose multi-source fusion optimization and dynamic compensation control of the Lyapunov potential function, the method adapts to signal shielding and attenuation scenes of mountainous complex terrains, inhibits load swing, reduces the risk of obstacle scraping and collision, and improves the safety of multi-machine lifting.

The utility model discloses a kind of bearing bush cooling devices, it is related to pump station cooling system technical field, including host computer pump cooling unit, bearing bush cooling unit, intelligent control system, the bearing bush cooling unit includes gas-liquid separator, compressor, condenser, liquid accumulator, drying filter, liquid mirror, expansion valve and evaporator sequentially through pipeline connection, form closed refrigeration cycle loop, exhaust pipe on the outlet of compressor is provided with pressure sensor, temperature sensor, pressure controller, the air inlet pipe and exhaust pipe of the compressor are respectively provided with third pressure gauge, the pressure controller is electrically connected with pressure sensor, third pressure gauge, realizes winter system pressure intelligent regulation by pressure controller, not only effectively avoid the equipment failure caused by pressure anomaly, also greatly improve the operation efficiency of system in winter harsh environment, energy saving, ensure equipment operation safety.

The invention relates to the technical field of electric power systems, and discloses a network construction type energy storage converter control method and device and a related product. The method comprises the following steps: constructing a corresponding MPC controller based on a pre-constructed discrete state space equation of a to-be-controlled network-building type energy storage converter; the MPC controller comprises a cost function and a constraint condition; the cost function comprises a state error term; performing optimization solution on the MPC controller by adopting a preset optimization algorithm to obtain an active power reference value and a reactive power reference value when the cost function reaches the minimum; and utilizing a virtual synchronous generator module and a voltage and current double closed-loop control module to generate a pulse width modulation signal based on the active power reference value and the reactive power reference value so as to control the target network-building type energy storage converter. According to the invention, the problems of current impact, power angle instability and the like which are easy to occur in the grid-forming type energy storage converter during voltage drop can be effectively solved, and stable grid-connected operation of the grid-forming type energy storage converter under the working condition of power grid voltage drop is ensured.

The utility model relates to the technical field of elevator derricks, in particular to an inward bending steel structure derrick for installing an elevator, which comprises a base, a derrick I and a plurality of derricks II, the derrick I is fixedly arranged at the top of the base, and the plurality of derricks II are fixedly arranged at the top of the derrick I in sequence. A plurality of stand columns and cross beams are arranged in the base, the first derrick and the second derrick, four stand columns distributed in a rectangular shape are arranged in the base, the first derrick and the second derrick, and the cross beams are connected between every two adjacent stand columns through bolts. The stand column is formed by inwards folding a steel plate to form a first bending piece and a second bending piece, the end, away from the second bending piece, of the first bending piece is inwards folded to form a third bending piece, and the end, away from the first bending piece, of the third bending piece is inwards folded to form a first bending connecting piece. According to the utility model, the problems of single structure, insufficient performance and stress concentration of connecting nodes of an elevator derrick upright post additionally arranged in an old community are solved, and the overall strength, stability and safety of the derrick are improved.

The present disclosure relates to the technical field of water treatment and purification equipment, and one embodiment of the present disclosure provides a purification system with a mobile dragging base, which comprises an integrated purification equipment main body and a stable base, the integrated purification equipment main body is arranged on the surface of the stable base, a pulling assembly is arranged at the front end of the stable base, a supporting and stabilizing assembly is arranged on both sides of the stable base, and a rolling assembly is arranged at the bottom of the stable base, wherein the rolling assembly comprises a bottom groove which is arranged on the bottom surface of the stable base, a pair of shaft seats are arranged in the bottom groove, a steering seat is rotatably connected to each of the shaft seats, and a pair of moving rollers are rotatably connected to the steering seat. Through the above technical scheme, the technical problem that the integrated water treatment and purification equipment is generally compact, large in size and heavy in weight, and once the position of the equipment needs to be adjusted, great difficulties will be encountered is solved.

This invention discloses a brain-computer interface (BCI) smart zoom glasses and a visual adaptive adjustment system, relating to the field of smart glasses technology. It includes an EEG signal acquisition module that attaches to the user's head to collect signals, extracts feature vectors after noise reduction, and transmits them to a core control module; a visual environment perception module that collects target and environmental data, generates structured data packets, and transmits them synchronously; a core control module that integrates multi-source data, identifies visual intent, and decides on adjustment parameters; a smart zoom execution module that adjusts the lens focal length and provides closed-loop feedback to calibrate accuracy; a visual adaptive adjustment module that adjusts lens parameters based on the environment and fatigue state; a human-computer interaction module that supports manual operation, status display, and vibration feedback; and a data storage and update module that stores data and iteratively optimizes the model. This invention achieves accurate visual intent recognition through brain-computer interaction; personalized modeling adapts to different user needs, meeting the product development and application requirements of the wearable smart device manufacturing field.

This utility model relates to the field of insulation withstand voltage testing technology for insulating equipment, specifically disclosing a high-voltage insulation testing assembly, including an intelligent high-voltage testing device, a test high-voltage transformer, a high-voltage insulating rod test frame, and a high-voltage insulation test chamber. The top of the high-voltage insulating rod test frame is the conductor part of the test insulating rod, and both ends of the conductor part of the test insulating rod are provided with high-voltage wire junction box fixing screws and matching nuts. Two high-voltage insulating rods are vertically fixed to both ends of the conductor part of the test insulating rod and connected by a locking device at the top. The bottom of the high-voltage insulating rods is connected to a ground balance fixing bracket, and both ends of the ground balance fixing bracket are provided with widened stabilizing brackets. Through modular parallel design and expandable structure, simultaneous batch testing of various insulating equipment can be achieved, significantly improving the testing efficiency by more than 60%. At the same time, the dual stabilizing brackets and intelligent control system ensure the safety and automation of high-voltage testing, significantly reducing labor costs and energy consumption.

The utility model discloses a base protection device for transformer substation construction, which comprises a supporting seat and a protection plate, the supporting seat is provided with the protection plate, the supporting seat is provided with a first clamping block, the bottom of the protection plate is provided with a first clamping groove, the protection plate is provided with a second clamping block matched with the first clamping groove, and the second clamping block is provided with a second clamping groove matched with the second clamping groove. An auxiliary plate is arranged on the protection plate, a second clamping groove is formed in the lower portion of the auxiliary plate, and a limiting piece is connected to the surface of the protection plate in a penetrating mode. According to the base protection device for transformer substation construction, the protection plates are spliced according to the height of the base, so that the device is suitable for transformer substation bases of different specifications, the universality and adaptability of the device are greatly improved, the problem that the transportation cost is increased due to supporting of a fixed frame is solved, overall installation is rapid and convenient, and the practicability is high. The construction difficulty is reduced, the construction time is shortened, and the problem that the buffer structure is prone to abrasion when installed in soil is solved.

This utility model relates to the field of valve body technology, and in particular to an impact-resistant high-temperature and high-pressure valve body, comprising a valve body and an impact-resistant plate. The inner wall of the valve body has an inlet chamber and a drain chamber, which are connected. A limiting groove is formed in the inner wall of the inlet chamber, and the impact-resistant plate abuts against the limiting groove, with its outer peripheral wall in sliding contact with the inner wall of the limiting groove. Multiple flow holes are formed on the outer wall of the impact-resistant plate, with the diameter of the flow holes increasing from the middle to both ends. In this utility model, by setting up the impact-resistant plate, the impact force of the fluid is transferred from the inner wall of the valve body to the impact-resistant plate, avoiding direct impact on the valve body. The design of the flow holes with increasing diameter from the middle to both ends reduces the flow velocity and disperses the pressure when the fluid passes through, further reducing the impact of the fluid on the valve body, preventing fatigue, wear, and cracks in the valve body material, extending the service life of the valve body, and ensuring safe operation of the equipment.

This invention relates to a control method, device, equipment, and medium for train slippage protection. The method uses a signal system to monitor the train braking process in real time, automatically identifies when the train enters a slippage state and performs displacement slippage compensation. When the duration of the slippage exceeds a set threshold, the method handles the train's loss of position and outputs emergency braking to stop the train. Compared with existing technologies, this invention has the advantages of reducing the impact of train slippage on operations while ensuring operational safety.

The invention discloses an HXD3CA type electric locomotive fan wind speed monitoring device, and relates to the field of locomotive maintenance and monitoring, and the device comprises a support base, an angle adjusting-fixing unit, a measuring unit and a visual monitoring unit; the supporting base is used for installing the angle adjusting-fixing unit and the visual monitoring unit. The measuring unit is fixed on the angle adjusting-fixing unit; the measuring unit is electrically connected with the visual monitoring unit; the angle adjusting-fixing unit is used for adjusting the angle and the position of the measuring unit so as to be aligned with an air duct outlet of an HXD3CA type electric locomotive fan; the measuring unit is used for detecting wind speed data of an outlet of an air duct of a fan of the HXD3CA type electric locomotive; the visual monitoring unit is used for displaying wind speed data in real time. According to the invention, the measurement efficiency, data reliability and operation safety can be improved.

The utility model relates to the technical field of inflator pump support machining, especially to a welding device for inflator pump support machining. A welding device for inflator pump support machining, including having the placing table etc., the placing table top places the backboard, the backboard top places the mounting frame, still including first positioning assembly, second positioning assembly and welding assembly, the placing table top rear side is provided with the first positioning assembly for positioning backboard, the placing table top is provided with the second positioning assembly for positioning mounting frame. The utility model discloses through positioning assembly, utilizes the clamp plate, the locating plate, the limiting plate and the magnetic block etc. to realize accurate positioning, avoids manual positioning deviation, improves the finished product quality, and simultaneously, with the help of control panel control electric push rod and welding gun automatic welding, need not manual operation, save time and effort, greatly improve the efficiency of inflator pump support welding machining, reduce the manpower cost.

The utility model discloses a flexible protective device for treating a collapsed cavity at the top of a tunnel, which comprises at least two flexible protective nets which are arranged from top to bottom and connected to the inner wall of the collapsed cavity, and the aperture of the lower part of each flexible protective net is smaller than that of the upper part of each flexible protective net. The protective net is composed of a steel wire rope protective net body and a twisted-pair hexagonal flexible net body, the steel wire rope protective net body is formed by rhombic weaving of Galfan coating steel wire ropes, and the twisted-pair hexagonal flexible net body is formed by weaving of A-grade Galfan coating steel wires, overlaps the edge of the steel wire rope protective net body by 10-20 cm and is tied. The steel wire rope protective net is formed by splicing meshes of different specifications, splicing follows a specific principle, and steel wire rope buckles are used for connection. The device is further provided with anchor rods, spring hooks and other components, and the number and size of the components are determined according to the three-dimensional data of the collapsed cavity. Compared with a traditional protective net, the device can effectively absorb rockfall energy, is good in buffering effect, high in adaptability to different collapse cavities, easy and convenient to install and capable of reducing construction risks and guaranteeing tunnel construction and operation safety.

The invention discloses a biopsy needle assisting in positioning, and relates to the technical field related to biomedicine, the biopsy needle comprises an arranged biopsy cylinder, a handheld groove is formed in the surface of the biopsy cylinder, a needle head is connected to the side end of the biopsy cylinder through a clamping table, a limiting block is installed in the biopsy cylinder, an arc groove matched with the needle head is formed in the limiting block, and the needle head is connected with the handheld groove. An auxiliary assembly is arranged in the biopsy cylinder, a positioning lamp is installed at the side end of the biopsy cylinder, and a switch is installed at the top of the biopsy cylinder. According to the biopsy needle capable of assisting in positioning, after the biopsy needle is turned on, the positioning lamp can project light rays to assist in determining the puncture position, the positioning accuracy is improved, tissue damage caused by positioning deviation is reduced, the scale and the notch on the outer side of the needle head facilitate judgment of the length of puncturing into a human body, a tissue sample is obtained in a mechanical moving mode, and the needle head is pulled out after obtaining is completed. The driving assembly drives the moving seat to move leftwards, and the inner core is pushed back to cut off and push out the tissue sample.

The utility model relates to a novel wind driven generator supporting type composite tower transition section platform, which belongs to the fields of electric power, communication, constructional engineering and the like and comprises a tower unit top tower drum connected with the tower transition section platform, the tower transition section platform, connecting high-strength bolts and an upper tower drum connected with the tower transition section platform. According to the tower transition section platform, an integrated transition section design scheme is further improved and optimized, structural components are simple in design, safe and reliable, the operation safety of a tower can be well guaranteed, meanwhile, steel castings or forged steel castings are adopted for manufacturing, the technological process is mature, the mature production and machining technology of a wind generating set can be continued, and the production cost is reduced. And the production and manufacturing cost of the transition section platform is further reduced.

The application provides a kind of virtual marshalling under global optimization curve test method, device, equipment and medium, it is related to rail transit technical field, the method comprises: extracting the third speed information corresponding to the car after marshalling from the first speed information, extracting the fourth speed information corresponding to the car after marshalling from the second speed information;According to fourth speed information and third speed information, determine the speed difference mean of the car after marshalling;According to the speed difference mean and preset speed, output the test result of virtual marshalling train global optimization curve.The application combines the speed corresponding to different time when virtual marshalling train runs according to preset recommended speed and the preset limit speed corresponding to different time to prevent virtual marshalling train from triggering emergency brake, realizes accurate verification to marshalling train running global optimization curve, has higher real-time and accuracy, improves the test efficiency and reliability of virtual marshalling, guarantees the operation safety of virtual marshalling train.

The invention provides an elevator operation vibration detection and adjustment system and method, and relates to the technical field of elevator safety. The system comprises a parameter learning unit, a data acquisition unit, a data processing unit, a control unit and a maintenance interaction unit, the method comprises the following steps: pre-learning key parameters of a shaft, collecting the running state and vibration data of the elevator in real time, realizing accurate recognition of vibration abnormity through multi-dimensional filtering and spectral analysis, executing a grading response strategy in combination with abnormal positions, types and degrees, including maintenance early warning, running parameter dynamic adjustment or running prohibition, and assisting in maintenance through a maintenance interaction unit. Manual on-site detection is not needed, vibration hidden dangers can be actively recognized and dynamically controlled, the risk that a vibration reduction mechanism conceals mechanical abnormity is avoided, elevator operation safety and riding comfort are improved, and meanwhile maintenance efficiency is improved.

The invention relates to the technical field of ammonia synthesis, and discloses a low-consumption conversion ammonia-containing wastewater separation and treatment device which comprises an ammonia washing tower, a comprehensive flash evaporator, an alternating-current cooler, a stripping tower and a tail gas separation tank. The first ammonia washing tower and the second ammonia washing tower are arranged in parallel, bottom outlets are communicated to the comprehensive flash evaporator through a seventh adjusting valve and an eighth adjusting valve, high-pressure ammonia-containing condensate is throttled and depressurized, and physical turbulent flow is induced in the flash evaporator to accelerate desorption of acid gas. And the flash evaporation lower liquid enters the cold side of the alternating current cooler through a condensate pipeline, absorbs heat from a gas phase at the top of the stripping tower for preheating, and then enters the stripping tower for countercurrent deep stripping. Purified condensate generated at the bottom of the stripping tower is discharged out of the system, and a tower top gas phase is fed into a tail gas separation tank for gas-liquid separation after being subjected to heat exchange by an alternating-current cooler and cooling by a circulating water cooler. Through high-pressure flash evaporation pretreatment and an internal thermal coupling mechanism, the saturated steam consumption of a steam stripping section is reduced, and the problems of crystal blockage and equipment corrosion are solved.

The application discloses a large-span photovoltaic support arranged on a steep hillside, and solves the problem of how to arrange a large-span photovoltaic support on a stone hillside; a cast-in-situ concrete long strip pile cap (5) is cast on a gravel backfill layer (2) at the bottom of the hillside, a bottom support column (6) is arranged on the concrete long strip pile cap (5), a middle support column (7) is arranged on a large isolated rock (3) arranged in the middle of the stone hillside (1), a top support column (9) is arranged on the cast-in-situ concrete long strip pile cap (5), and a large-span support (10) is arranged between the bottom support column (6), the middle support column (7) and the top support column (9); the stable arrangement of the large-span support is realized, and the operation safety of photovoltaic modules is ensured.

The utility model relates to elevator traction sheave detection device technical field, the utility model provides a kind of elevator traction sheave wear detection device, for detecting the wear condition of the wheel groove of traction sheave, including mounting bracket, limit wheel group and detector, the number of limit wheel group is at least two groups, limit wheel group is installed in mounting bracket, for rotatably connecting mounting bracket with traction sheave;Detector is configured as corresponding to the outer circumferential surface of traction sheave when mounting bracket is connected with traction sheave, detector includes inductive unit and elastic detection piece, one end of elastic detection piece is fixedly connected with mounting bracket, and the other end is elastically abutted to the inner side wall of wheel groove, inductive unit is used to measure the elastic deformation size of elastic detection piece.Through the above technical scheme, the detection device can adapt to the detection requirement under the two different working conditions of traction sheave static and rotation, overcome the poor applicability of existing automated detection device problem.

The utility model discloses a U-shaped groove structure of a railway transition section, which comprises a U-shaped groove mechanism, the U-shaped groove mechanism is arranged at the upper end of a pile foundation, and a backfill soil layer is arranged on the inner side of the U-shaped groove mechanism; the U-shaped groove mechanism comprises a bottom plate and side walls; the bottom plate is connected to the upper end of the pile foundation, and the two ends of the bottom plate are connected with the side walls. The backfill soil layer comprises a foundation bed body, a foundation bed bottom layer and a foundation bed surface layer; the foundation bed body, the foundation bed bottom layer and the foundation bed surface layer are sequentially arranged on the bottom plate from bottom to top. And the upper end of the pile foundation is connected with a steel casing. The lower end face of the bottom plate is connected with a cushion layer. The U-shaped groove structure of the railway transition section aims to overcome existing defects, and smoothness and operation safety of a track are guaranteed.

This invention discloses a method for detecting the health status of a new energy vehicle power supply, belonging to the field of power supply technology. The invention first extracts abnormal current signals from the phase line current signals of the three-phase inverter of the new energy vehicle power supply at different scale windows. It then extracts amplitude dispersion values ​​from the frequency domain, calculates the three-phase frequency domain cumulative values, generates frequency domain amplitude dispersion weights, and constructs a multi-scale frequency domain feature matrix and weight matrix. Next, it extracts effective abrupt change values ​​from the time domain, calculates the three-phase time domain cumulative values, generates time domain abrupt change weights, and constructs a multi-scale time domain feature matrix and weight matrix. Finally, it fuses the feature matrix and weight matrix of the same dimension, inputs them into a fault detection neural network for processing, and outputs the power supply health status. This invention improves the sensitivity and accuracy of early power supply fault identification, effectively reducing the probability of false positives and false negatives.

This invention discloses a liquid-cooled collaborative intelligent temperature control method and system based on layered PCM, relating to the field of liquid-cooled temperature control technology. The method includes: S1, real-time acquisition of liquid-cooled temperature control data and preprocessing of the data; S2, calculation of the sensible and latent heat absorption of the outer and inner PCM layers, assessment of the risk of thermal imbalance on the conductor surface, determination of the current thermal state, and output of a thermal risk warning signal; S3, assessment of the degree to which cable bending weakens thermal coupling performance, triggering a layered PCM collaborative temperature control strategy, and execution of graded control commands for the power pump, circulation pump, and three-way valve; S4, assessment of the deviation between the current heat exchange capacity and the heat load demand, correction of the cooling response coefficient, and optimization of the PCM collaborative temperature control strategy. This solves the problems of unstable thermal coupling between the coolant pipe and the heating conductor in existing liquid-cooled cables, and the tendency for pipe deformation and contact thermal resistance and localized hot spots to occur with frequent bending.

This invention provides a spacecraft interface force extraction and force limit testing method based on the least squares method, applicable to a spacecraft vibration testing system. The testing system includes a vibration table, an extended table surface or horizontal slide, test fixtures, a signal conditioner, a vibration controller, a power amplifier, a vibration table oil pump, a cooling unit, and an external circulating water system. The testing method comprises fourteen steps. This invention's method analyzes a wide frequency range, reduces the cost of spacecraft force limit testing, meets the engineering application requirements for quantifying interface forces, effectively mitigates overtesting in spacecraft vibration testing, and ensures the safety of spacecraft products and equipment operation.

The utility model relates to the field of protective door transportation, and discloses a stable conveying device for protective door processing, which comprises a transportation supporting plate for supporting, a plurality of unloading slots are formed in both sides of the top end of the transportation supporting plate, and limiting chutes are formed in both sides of the interior of the transportation supporting plate. A traction frame is slidably connected to the interior of each limiting sliding groove, a lower pressing disc is arranged under the conveying supporting plate, traction lower pressing frames are installed on the two sides of each traction frame so as to achieve stable discharging of the machined door planks, and a two-way screw rod is rotationally connected to the interior of the conveying supporting plate. The exteriors of the two-way screws are in threaded connection with the interiors of the traction frames correspondingly, and a driving motor is fixedly connected to the middle of the front end of the transportation supporting plate. According to the utility model, the convenience of the device in the unloading and transporting process is improved, the stability in the unloading process is improved, the stability of the device on the operation of the door plate is improved, and the operation safety of the door plate is ensured.

The utility model relates to fruit picking technical field, and disclose a kind of high fruit picker, including annular, the inside one side of annular is fixedly connected with mounting bracket, the one side of mounting bracket is equipped with threaded hole, the top of mounting bracket is threadedly connected with blade, the bottom of annular is fixedly connected with anti-falling net, the bottom of anti-falling net is fixedly connected with air bag, the one side of air bag is fixedly connected with inflation port, the one side of inflation port is fixedly connected with plug, one end of anti-falling net is fixedly connected with circular support, the bottom of circular support is fixedly connected with base, the bottom of base is fixedly connected with ground insertion.This high fruit picker is set by setting anti-falling net, air bag, plug, circular support and ground insertion, without picking one fruit each time to be picked down and placed fruit picker, avoid the time wasted by frequent lifting picker, greatly improve picking efficiency, more fruit picking work can be completed in shorter time, satisfy the demand of large-scale fruit picking of agriculture.

The utility model relates to the technical field of jack, and disclose a four -column jack lifting frame, including main part mechanism, both sides of main part mechanism all are provided with fixed establishment, main part mechanism includes bottom plate, bottom plate top corner all are fixedly connected with hydraulic jack body, the pump rocker of two hydraulic jack bodies behind bottom plate both sides all have and insert the first connecting rod, first connecting rod front end fixedly connected with connecting barrel, connecting barrel is provided with two, two connecting barrel all insert support rod, two support rod far from two connecting barrel one end fixedly connected with second connecting rod. This four -column jack lifting frame, four -column jack lifting frame adopts four hydraulic jack bodies to work simultaneously, can provide even support force, compared with single -point jack, when supporting larger area or longer object, has improved stability greatly, has reduced the risk of lateral tilting effectively, has guaranteed operation safety.