60results about How to "Achieve height" patented technology

The invention discloses a relay protection plug-in automatic simulation test method and system based on a universal backboard. The method comprises the steps that a relay protection plug-in to be tested is connected to the universal backboard; semantic information in the relay protection configuration file of the plug-in is analyzed and extracted, a corresponding test data model is dynamically constructed, and a matched operation scheme is generated; on the basis of the operation scheme, real-time simulation parameters are set, and a multi-dimensional excitation signal is applied to the plug-in through the universal backboard so as to simulate various operation conditions of the power system; and acquiring response data of the plug-in under the excitation signal through the universal backboard, and comparing the response data with an expected response to obtain a test result. According to the invention, plug-in level universal testing is realized, special debugging instruments of various models can be replaced by a single testing system, and the operation and maintenance efficiency and the spare part management level of the relay protection device are remarkably improved.

The invention discloses a CSTR-based three-dimensional electrode MEC-fluidized bed reactor for anaerobic fermentation of cow dung and application, and belongs to the technical field of microbial electrochemistry. The reactor comprises a reactor main body, a feed port, a discharge port, a gas outlet and a stirring device, an anode and a cathode are arranged in the reactor main body, a conductive three-dimensional particle electrode filler is filled between the anode and the cathode to form a three-dimensional electrode system, and the anode and the cathode are connected with an external power supply. The three-dimensional electrode system is constructed, so that the reaction specific surface area and the electron transfer efficiency are greatly increased, the stimulation effect of a low-voltage electric field is amplified to the whole reaction space, and the technical bottlenecks of low mass transfer efficiency, low methane yield, easiness in system instability and the like in the traditional cow dung anaerobic digestion are solved. Compared with the traditional anaerobic digestion and two-dimensional microbial electrolysis cell, the two-dimensional microbial electrolysis cell disclosed by the invention can obviously improve the methane yield and the system operation stability, and has an excellent engineering application prospect.

The invention provides a weak illuminometer calibration system and calibration method. The method specifically comprises the following steps: S1, determining a calibration coefficient of a measurement system; s2, calculating to obtain a corresponding illumination correction factor; and S3, calculating a standard micro-illuminance value of the calibrated illuminometer by combining the display value of the first luminosity detector, the calibration coefficient and the illuminance correction factor under the corresponding aperture, and obtaining a relative indication error of the calibrated illuminometer by comparing a response value Ex of the calibrated illuminometer with the standard micro-illuminance value. Based on a highly-integrated linear optical system, the problems that in a traditional mode, the calibration process is tedious and prone to being interfered by the environment, errors are transmitted step by step, and precision is insufficient due to light intensity attenuation are solved, efficient, high-precision and traceable calibration in a weak illumination interval is achieved, operation is easy and convenient, and cost is low.

This utility model discloses a conveyor belt packaging purging device, including an air tank, a pulse valve, a photoelectric switch, a purging pipeline, and a manual ball valve. The air tank is fixed to the side of the conveyor belt frame, and its outlet is connected to the pulse valve and the manual ball valve in sequence via flanges. The purging pipeline consists of two parallel annular sections mounted above the conveyor belt inlet, allowing for purging of both the top and bottom surfaces of the packaging. Its inlet end is connected to the outlet of the manual ball valve, and a directional, inclined nozzle array is welded to the bottom of the pipeline. The photoelectric switch is mounted 1m upstream of the starting end of the purging pipeline via an adjustable bracket, and its signal line is connected to the control end of the pulse valve. This utility model uses the air tank to stabilize and store compressed air, and in conjunction with the instantaneous opening of the pulse valve triggered by the photoelectric switch, ensures that the airflow is directionally sprayed only when the packaging passes through. This working mode reduces air consumption to one-third of that used for continuous purging, improving energy efficiency and avoiding interference from ineffective airflow on the conveyor belt environment.

The invention relates to the technical field of fluid conveying, and discloses a double-channel fluid connecting device which is characterized in that a fixing part is provided with a first pipeline and a second pipeline; the first pipeline is provided with a first butt joint opening, the second pipeline is provided with a second butt joint opening, and the second butt joint opening is coaxially arranged in the first butt joint opening in a sleeved mode. A first annular channel is formed between the second butt joint port and the first butt joint port; the movable part is provided with a third pipeline and a fourth pipeline; the third pipeline is provided with a third butt joint port, the fourth pipeline is provided with a fourth butt joint port, and the fourth butt joint port is coaxially sleeved with the third butt joint port; a second annular channel is formed between the fourth butt joint port and the third butt joint port; one path of fluid is transmitted through the second pipeline, the second butt-joint opening and the fourth butt-joint opening; and the other path of fluid is conveyed through the first pipeline, the first annular channel, the second annular channel and the third pipeline. Rapid butt joint of two paths of fluid is achieved, the two paths of butt joint faces are coaxially designed, and the butt joint precision requirement is lowered.

The utility model relates to the technical field of display screen wall hanging, in particular to a display screen wall hanging connecting assembly which comprises a table board body, a height adjusting mechanism is arranged below the table board body, and an angle adjusting mechanism is arranged on the height adjusting mechanism. The height adjusting mechanism comprises a base fixed to the lower end of the table board body, a supporting plate is fixed to the upper end of the base, and a motor is fixed to the middle of the end, away from the supporting plate, of the base. The limiting plate and the U-shaped block are pushed to move through the electric telescopic rod on the fixing plate, a display screen can be clamped and fixed, meanwhile, the fixed pulley on the base is in linkage with the connecting rope, the U-shaped block is pulled to synchronously move upwards when the fixing plate moves upwards, height fine adjustment and position locking are achieved, and different installation height requirements are met; by changing the meshing state of the limiting tooth block and the movable rod, the height adjusting mechanism can be rotated to adjust the angle of the display screen, and meanwhile angle locking is achieved.

The utility model relates to the technical field of tool changing assemblies, in particular to a tool changing assembly based on an engraving and milling machine, which comprises a guide rail pair guide rail, at least two groups of guide rail pair sliding seats are mounted on the surface of the guide rail pair guide rail in a sliding manner, a first air cylinder is mounted above the guide rail pair sliding seats, and a first piston rod for stretching is arranged in the first air cylinder. A first base is fixedly installed at the end of the first piston rod and is of a U-shaped structure. According to the scheme, through the synergistic effect of the guide rail pair sliding seats and the first air cylinder, height and position adjustment of the tool bit is achieved, it is ensured that the tool bit can be accurately conveyed to the tool bit position of the engraving and milling machine, one guide rail pair sliding seat is used for taking down an old tool bit, the other guide rail pair sliding seat is used for installing a new tool bit, and the tool changing efficiency is remarkably improved; and through cooperation of a servo motor and a position sensor, the accuracy and stability of front-back inclination angle adjustment of the tool bit are further guaranteed, manual intervention is reduced, and the automation degree is improved.

The low-profile vehicle-mounted antenna comprises a PCB monopole antenna, the PCB monopole antenna comprises a board body, antenna radiation patterns are arranged on the front face and the back face of the board body respectively, the board body directly feeds through a cable, and a printing grounding structure is arranged on the board body, forms electromagnetic coupling with the cable and is used for expanding the bandwidth of the antenna. According to the low-profile vehicle-mounted antenna, the antenna radiation patterns are arranged on the two sides of the plate body respectively, so that a low-profile flat structure is achieved, and the height of the antenna is reduced. And meanwhile, by reasonably utilizing the coupling effect of the cable and the printed grounding structure on the radiation patch, the bandwidth of the antenna is expanded, and the full-band stable performance is realized. And direct feeding is realized through the cable without an additional and complex feed network, so that the effects of simplifying the structure and reducing the cost are achieved.

The invention provides an intelligent temperature control method, system and equipment for a high-temperature purification furnace, and relates to the technical field of intelligent temperature control, and the method comprises the steps: carrying out the multi-modal state tracking of the high-temperature purification furnace through a three-dimensional perception network, and obtaining multi-modal time sequence perception data; performing time sequence change feature extraction of the multi-modal time sequence perception data based on a sliding time window to obtain K impurity dynamic feature vectors; after K single-dimensional temperature control strategies are matched in the feature strategy mapping space, conflict resolution fusion is carried out, and a combined temperature control strategy is output; and in the dynamic temperature control execution process, on-line self-adaptive updating of the combined temperature control strategy is executed based on the purification evolution deviation until the material purity reaches the semiconductor grade standard. The technical problems that in the prior art, due to the fact that a single-point temperature sensor or a single modal parameter is generally adopted for temperature control over the high-temperature purification furnace, the sensing capacity for multi-factor changes is insufficient, temperature control adjustment lags or fails, and finally the material purity is affected are solved.

The utility model provides a kind of integrated double independent air duct refrigeration system, including box, evaporator, condenser;The evaporator and condenser are respectively installed in the two sides of box, the box on the outside of evaporator is opened outdoor air inlet, outside air enters the air duct where evaporator by outdoor air inlet, air duct is equipped with air supply fan, air supply fan pushes air to flow through evaporator;Air is sent into refrigeration area after heat exchange with evaporator;Another side of box is equipped with corresponding outdoor air inlet close to condenser, indoor air outlet is equipped opposite outdoor air inlet, outdoor air enters the air duct where condenser by outdoor air inlet, air duct is configured and installs exhaust fan, exhaust fan will wind flow flow through condenser, condenser releases heat, exhaust fan will absorb heat after hot air discharge outdoor.This new double independent air duct design avoids hot and cold air mixing, evaporator and condenser can efficiently carry out heat exchange in relatively independent airflow environment.

The application provides a big data direct driving application generation and adaptation method of a semantic reasoning engine, relates to the technical field of artificial intelligence, and comprises the following steps: analyzing a big data source and constructing a data semantic graph by an AI semantic reasoning engine; deducing an application component structure based on graph semantic features, and establishing a direct binding relationship between the component and the graph node; selecting and instantiating a component template according to the semantic attributes of the binding node, and generating an executable application. During the application running, the data source is monitored and the graph is incrementally updated, the affected component instance is positioned and locally reconstructed through a difference vector, and the automatic synchronization and adaptation of the application and the data change are realized.

The present application belongs to the technical field of material environmental adaptability testing, and particularly relates to a multi-field coupling environment simulation test device, which comprises a test box body, the test box body is divided into upper and lower installation spaces by a first partition plate; a sand blasting erosion assembly for simulating a sand blasting erosion environment, a saline-alkali corrosion assembly for simulating a saline-alkali corrosion environment and an ultraviolet aging assembly for simulating a sunlight ultraviolet environment are integrated in the installation spaces; the sand blasting erosion assembly is composed of a sand blasting head, a sand bin mechanism and a sand blasting pump; the sand bin mechanism comprises a sand bin, and a power vane driven by waste sand gravity is arranged on a waste sand falling path in the sand bin. The present application can realize integrated testing of three major environmental factors, ensure that the testing environment is highly consistent with the actual natural environment, improve testing efficiency and data reliability, and reduce equipment purchase and operation and maintenance costs.

The application discloses an indoor distribution cable path intelligent generation method combined with building environment characteristics, and comprises the following steps: constructing a semantic grid map capable of distinguishing different building function areas by performing layer identification, semantic annotation and space discretization on an input building plan design map; based on the semantic grid map, different basic passing generation values are given to different types of areas, and a dynamic engineering constraint function comprising a corner turning penalty and a wall sticking reward rule is defined; path search of an improved A* algorithm is performed, in an engineering constraint cost field fused with the basic passing generation value and the dynamic engineering constraint function, a heuristic search algorithm with a dynamic penalty term is used to calculate and generate a candidate cable path meeting engineering specifications; virtual convergence points are determined through node clustering, the path search algorithm is applied hierarchically, a backbone path limited in a public area is generated, branch paths entering rooms are generated, and a complete indoor distribution system cable path topology is generated by merging.

The invention discloses a method for preparing a tungsten compound from artificial tungsten ore, which comprises the following steps: reacting sulfuric acid with the artificial tungsten ore to leach tungsten, and controlling the reaction conditions that the pH is 0.2-4.0, the temperature is 25-100 DEG C, the reaction time is 30 minutes to 6 hours, and the liquid-solid ratio is 1: 1-10: 1. And obtaining a metatungstate leaching solution after the reaction is completed, so that efficient leaching of tungsten is realized. And further performing purification and impurity removal on the solution to obtain a pure metatungstate solution. The pure metatungstate solution can be used for preparing different pure tungsten compound products such as solid metatungstate, phosphotungstic acid, ammonium phosphotungstate, tungsten oxide, ammonium metatungstate, ammonium paratungstate and tungstic acid. According to the technology, efficient leaching of tungsten under the mild condition can be achieved, high acid and high alkali are not needed in the whole process, and energy consumption and emission are greatly reduced; the obtained leachate is easy to purify to obtain a pure metatungstic acid solution, and the pure metatungstic acid solution can be directly used as a platform intermediate to flexibly prepare various tungsten chemicals.

This application discloses an oxygen inhalation device that is easy to quickly access and use, belonging to the technical field of oxygen inhalation equipment. It includes a mobile cart; an oxygen generator, with the oxygen generator fixedly mounted on the top of one end of the mobile cart; a telescopic rod, with the telescopic rod mounted on the mobile cart; a pulling mechanism, with the pulling mechanism mounted on the top of the telescopic rod; and an air tube, with the air tube inside the telescopic rod, its bottom passing through the telescopic rod and connected to the oxygen generator, and its top connected to the pulling mechanism. The height and orientation of the pulling mechanism can be adjusted by the telescopic rod. In use, the end of the pulling mechanism can be directly pulled to automatically extend and fold the air tube, facilitating the pulling out of the air tube for oxygen inhalation and the folding and storage of the air tube, making it convenient to use.

The invention belongs to the crossing field of an automobile active safety system and a high-precision gas sensing technology, and provides a vehicle-mounted alcohol system and method which can avoid interference of other ethanol-containing substances and only detect gas exhaled by a driver. The system defects of an existing vehicle-mounted alcohol detection system in the aspects of reliability, anti-interference performance and integration are overcome. On the basis of traditional alcohol detection and photoacoustic spectrum detection, the detection sensitivity, reliability and accuracy are improved, meanwhile, the device can be integrally applied to a vehicle-mounted alcohol detection system, and the requirement for rapidly and accurately detecting whether a driver drinks alcohol or not in a vehicle in real time is met.

The invention provides a monocular vision snakelike running action detection method and device, equipment and a medium. The method comprises the steps that a real-time video stream of a snakelike running test site is collected through a single camera; performing area cutting on the video frame based on the site calibration point to obtain a human body detection area and a rod body detection area; loading and running a deep learning model, performing asynchronous reasoning on the video frame, and obtaining a human body detection frame, a human body posture key point, a rod body detection frame and a rod body state classification result; continuously tracking the detected human body target based on a human body tracking algorithm, and obtaining a motion track of an effective tester; according to the spatial relationship among the human body position, the posture key point and the rod array, the motion stage is judged in real time; in the movement process, detecting at least one illegal behavior in real time; according to the exercise stage and the violation detection result, automatic timing is carried out, a structured report containing exercise performance and violation information is generated, and full-process automatic detection can be achieved only through a single camera.

The utility model discloses a kind of wastewater treatment systems of circuit board gold sinking technology, including wastewater classification collection component, for classifying storage nickel-containing wastewater, phosphorus-containing wastewater and cyanide-containing wastewater, be set at the most front end of wastewater treatment system, including nickel-containing wastewater tank, phosphorus-containing wastewater tank and cyanide-containing wastewater tank.The utility model realizes the accurate classification storage of nickel-containing, phosphorus-containing, cyanide-containing wastewater by wastewater classification collection component, effectively avoid the chemical reaction caused by wastewater mixing, improve the processing security.Nickel-containing wastewater tank, phosphorus-containing wastewater tank and cyanide-containing wastewater tank cooperate with first solenoid valve and main bus pipe, realize automatic drainage control by control module, reduce manual operation, improve processing efficiency.Inflow pipe is equipped with flow control valve, accurately adjusts wastewater inflow, avoids overflow or equipment overload.

The application provides a D-band one-dimensional DBF-AIP microsystem architecture, comprising a quartz substrate, an on-chip antenna arranged on the upper surface of the quartz substrate, an RFIC chip arranged on the lower surface of the quartz substrate, a microwave board arranged below the quartz substrate, and BGA solder balls for connecting the quartz substrate and the microwave board. The D-band one-dimensional DBF-AIP microsystem architecture provided by the application maximally shortens the signal transmission distance, reduces the parasitic parameters, and obtains better performance, and meanwhile, the D-band one-dimensional DBF-AIP microsystem architecture is small in size, light in weight, and suitable for large-scale integration.

This invention relates to antimony nanopowder, its preparation method, and its applications, belonging to the field of metal powder processing technology. The method includes dispersing antimony nanopowder in a solvent to obtain a dispersion, mixing the dispersion with 5-10 times the mass of nitrobenzene diazonium salt (p-NBD) of the antimony nanopowder, and reacting under light irradiation at 0-4°C for 30-60 hours to obtain passivated antimony nanopowder. The diazo chemical reaction forms stable covalent bonds on the surface of Sb NPs, blocking their interaction with respiratory cells. Compared with the original Sb NPs group, the nitrobenzene diazonium salt modification reverses the GPX4 activity inhibition effect, upregulates GPX4 protein expression and restores it to near the control group level, and eliminates the ability to induce ferroptosis, thus addressing the pulmonary toxicity problem of Sb NPs from the perspective of ferroptosis mechanism.

The invention provides a PCBA performance detection platform and method for an integrated electric power-assisted brake system, and relates to the technical field of automotive electronics, and the platform comprises a control host which is configured to run a test program, process test data, and send a test instruction; the to-be-tested piece clamping station is used for installing and electrically connecting a to-be-tested PCBA; the interface array comprises an actuator interface module which is configured to be connected with an executive component of an automobile braking system; the signal simulation module is configured to generate an environment signal for simulating the running state of the vehicle; the to-be-tested piece clamping station, the actuator interface module and the signal simulation module are interconnected through an interface array, so that when a to-be-tested PCBA is installed on the to-be-tested piece clamping station, the to-be-tested PCBA is clamped on the to-be-tested piece clamping station; according to the hardware-in-the-loop test system, the control host carries out test scheduling, the PCBA to be tested carries out driving control on an execution part connected to the actuator interface module, and the signal simulation module provides simulation input signals for the PCBA to be tested.

The application discloses a kind of based on carbon-nitrogen ratio phased regulation and control of soil carbon-increasing fertilization method of flora and its application in rice planting.The method carries out pre-rotting to rice straw and pig manure under the condition of phased carbon-nitrogen ratio, controls carbon-nitrogen ratio to be (25-28):1 in the first stage to promote carbon-fixing flora proliferation, adjusts carbon-nitrogen ratio to be (30-32):1 in the second stage to promote nitrifying bacteria group activation, and the obtained pre-rotted material is applied as base fertilizer into paddy field, and is based on the abundance monitoring result of soil carbon-fixing flora and nitrifying bacteria group during the rice growth period to carry out topdressing regulation and control.The application realizes the synergistic enrichment of paddy field carbon-fixing flora and nitrifying bacteria group by phased carbon-nitrogen ratio regulation and control, significantly improves soil organic carbon content while effectively reducing greenhouse gas emissions, improves rice yield and nitrogen utilization rate, and establishes a feedback control mechanism based on flora monitoring, to ensure the sustained and stable fertilization effect.

The invention discloses integrated wearable monitoring equipment and a manufacturing method thereof, and belongs to the technical field of wearable health monitoring. The device comprises a flexible substrate, a microfluidic sweat collection layer, an optical sensing unit, a temperature-sensitive color-changing layer and a flexible transparent packaging shell. The micro-fluidic layer is used for collecting and guiding sweat to a detection area in which a color developing reagent is preset; the temperature-sensitive color-changing layer is attached to the surface of the skin; and the optical sensing unit respectively realizes simultaneous monitoring of sweat components and body temperature by sensing color changes of the detection area and the temperature-sensitive layer. Ambient light is used for working, an external power supply is not needed, and true passive sensing is achieved; the two-parameter monitoring function is integrated into a single system through the optical principle, the structure is simplified, cost is low, wearing is comfortable, and the system is suitable for long-term and continuous non-invasive monitoring of the human health state.

The invention relates to the technical field of battery manufacturing, in particular to a stress self-adaptive interconnection method and device for a thin film battery array based on a flexible PCB, and the method comprises the steps: processing and forming a micro-groove array on the surface of the PCB, and preparing a composite solder structure; collecting a real-time deformation field and a bonding pad position of the PCB, and generating a compensation mounting path of the thin film battery; the contact force between the thin film battery and the bonding pad is controlled to be smoothly increased; performing local thermal ultrasonic solid-phase bonding on the electrode on the thin film battery and the corresponding bonding point on the PCB; performing laser irradiation on the lower electrode of the battery and the PCB bonding pad to form a high-melting-point intermetallic compound; collecting three-dimensional shape geometric parameters of the welding spots, extracting efficiency distribution and defect characteristics of the battery, and dynamically adjusting process parameters of the upflow according to the efficiency distribution and defect characteristics; and calculating residual stress distribution, and dynamically adjusting pressure applied to different areas by a hot pressing roller in a subsequent packaging process. According to the invention, the large-scale and high-reliability manufacturing of the flexible PCB-based thin film solar wing can be effectively realized.

This invention provides a wind tunnel test angle-of-attack adjustment device and its calculation method. The device includes an angle-of-attack mechanism, a suction mechanism, a front wind speed sensing component, and a rear wind speed sensing component. The suction mechanism includes a suction channel and a fan. Both the front and rear wind speed sensing components include a high-sensitivity sensor and a lifting drive component. The front wind speed sensing component also includes a low-sensitivity sensor, located downstream of the suction channel. The high-sensitivity and low-sensitivity sensors are connected to the fan and the lifting drive component via a control unit. The method includes selecting a working sensor based on the test angle of attack adjusted by the angle-of-attack mechanism; setting the target boundary layer thickness and the wind tunnel set flow rate; adjusting the real-time power of the fan; controlling the height of the working high-sensitivity sensor; and obtaining the flow rates of the high-sensitivity and low-sensitivity sensors; adjusting the real-time power of the fan based on the flow rates of the high-sensitivity and low-sensitivity sensors. This invention has advantages such as effectively controlling the boundary layer thickness and improving test accuracy.

The invention provides a memory test file generation method and device, equipment and a medium, and the generation method comprises the steps: obtaining and analyzing an operation sequence file of a memory, and obtaining a device model of the memory and at least one function test operation; according to the device model and each function test operation, determining a register access sequence and a time sequence parameter sequence corresponding to each function test operation in a preset database; and configuring the time sequence parameter sequence into a corresponding register access sequence, and generating a test file of the memory. Through the memory test file generation method and device, the equipment and the medium provided by the invention, the technical problem of low efficiency of an existing verification method can be solved.

The utility model relates to the technical field of detection equipment, in particular to automobile water pump belt pulley detection equipment which comprises a supporting table, a sliding table is arranged on the upper portion of the supporting table in a sliding mode, and a positioning pin for fixing a belt pulley body is arranged on the upper surface of the sliding table. A mounting frame is arranged on one side of the supporting table, a detection instrument is arranged on the mounting frame, and a clamping device used for pressing a belt pulley body is arranged on the side edge of the sliding table, so that accurate and efficient detection of the water pump belt pulley is achieved, and the water pump belt pulley detection device has the advantages of being easy and convenient to operate, stable in detection result, capable of achieving multi-size detection, high in detection efficiency and the like. And the production efficiency and the product quality can be effectively improved.

The invention belongs to the technical field of bionic dexterous hands, and particularly relates to a middle knuckle module, a robot dexterous hand and an intelligent artificial limb. The whole middle knuckle module comprises a shell assembly (1), a first rotating piece (21), a second rotating piece (22), a first driving mechanism (31) and a second driving mechanism (32). The shell assembly (1) serves as a bearing and mounting base, a cavity used for containing the first driving mechanism (31) and the second driving mechanism (32) is formed in the shell assembly (1), and structural interfaces used for being rotationally connected with adjacent knuckles are formed at the two ends of the outer portion of the shell assembly (1) correspondingly. The first driving mechanism (31) and the second driving mechanism (32) which are used for driving the near-end knuckles and the middle knuckles are integrated in the same middle knuckle module, high integration and modularization of a single finger are achieved, and therefore the number of driving units distributed between the knuckles in a scattered mode is reduced, the space utilization rate is increased, and the space utilization rate is increased. And the overall miniaturization design of the robot dexterous hand and the intelligent artificial limb is facilitated.

This invention relates to the field of electronic motherboard testing technology, and in particular to an automated testing device for electronic motherboards, comprising a base plate, on the upper side of which are arranged a lower testing mechanism, an upper testing mechanism, and a cooperating testing mechanism. The invention, by setting up the upper testing mechanism and the cooperating testing mechanism, achieves a high degree of automation and flexibility in electronic motherboard testing, significantly improving testing efficiency and reducing reliance on manpower and operational difficulty. The upper testing mechanism is equipped with a cooperating frame with a multi-functional positioning slot, and important testing modules such as network card testing boards and graphics card testing boards are fixed to it using magnetic attraction and limiting blocks, making the entire testing fixture a modular unit that can be quickly disassembled and replaced. When changing product models, the operator only needs to move the locking group to remove the entire cooperating frame along with all the testing modules on it and replace it with another pre-assembled module, eliminating the need for tedious screw removal and position calibration of individual components.

The utility model relates to the technical field of key, specifically disclose a kind of key structure and electronic equipment. Key structure includes mounting bracket and key assembly;Mounting bracket is located on circuit board;Key assembly includes key body and the self-rotation axis integrally formed with key body;Mounting bracket is provided with shaft slot, and the self-rotation axis of key body is embedded in shaft slot, and the end of key body away from self-rotation axis can be pressed down contact type switch;The side of key body close to self-rotation axis is connected with mounting bracket. In the utility model, by the integrally formed of self-rotation axis and key body, cooperate the clamping of key body and mounting bracket, the high integration and simplification of key structure are realized, material cost is reduced, multiple parts stacking internal space is avoided, thus it is beneficial to the miniaturization design of product, and key assembly can be directly pressed down and installed on mounting bracket, to reduce assembly production difficulty.