219 results about "Protection ring" patented technology

A method for detecting and preventing bot activity in a protected environment by leveraging API behavior analysis is disclosed. The method includes identifying target APIs vulnerable to bot attacks through the analysis of parameters such as user credentials and session tokens. It determines the importance of target APIs based on call volume and context, generating correlation keys from headers, cookies, or payloads to track API flows. The method identifies mandatory and probable pre-APIs using historical patterns, assigns risk scores based on criticality, and validates API request sequences in real-time by analyzing integrity and sequence likelihood. Caching mechanisms store data related to APIs, correlation keys, and invocation paths for real-time lookups. Incoming requests are assessed for missing pre-APIs or sequence deviations, with substitute APIs validated against thresholds. Requests flagged as bot traffic are blocked, ensuring secure API workflows and mitigating automated threats effectively.

The invention relates to the field of network and information security, and discloses a server security authentication system based on block chain trusted computing. Comprising a block chain network, an intelligent contract module, an authentication service module, a verification node and a to-be-authenticated server. The intelligent contract module records a registration index, a certification public key, a policy version number, a baseline commitment value and a revocation state. The authentication service module generates a challenge parameter and a challenge value based on the block height and the block hash digest. The trusted agent module collects a measurement abstract and forms a certification packet, and the trusted root module derives a staging certification key in a protected environment and signs the certification packet. And the verification node reads the data on the chain to complete signature verification, challenge value re-calculation, window verification and compliance proof verification, and generates an authentication bill containing an effective height range for resource access judgment after passing the verification.

The invention discloses a pre-configuration protection method based on risk identification, and the method comprises the steps: collecting multi-dimensional data of a target electric power optical communication network, including logic topology information, a service demand set and dynamic environment data; logic links in the target power optical communication network are identified and divided into different shared risk groups, and a comprehensive risk index of each shared risk group is calculated; adding the shared risk groups of which the comprehensive risk indexes are greater than a preset risk index threshold value into a to-be-protected queue, and generating an optimal standby network loop for each shared risk group in the queue to obtain a network protection ring of the to-be-protected queue; when a to-be-processed service request is received, selecting a target protection path for the to-be-processed service request from the network protection ring, so that the to-be-processed service request is switched to the target protection path when a fault occurs; according to the invention, the network can be rapidly switched when a fault occurs, and the reliability and recovery speed of the power optical communication network are improved.

The invention relates to the technical field of electric power, in particular to a primary and secondary fusion environment-friendly ring main unit intelligent monitoring system and method, and the system comprises a data collection module which is used for collecting multi-mode monitoring data of a ring main unit to obtain an original monitoring data set; the data processing module is used for performing standardization processing on the original monitoring data set to obtain a standardized multi-modal monitoring data set; the intelligent monitoring module is used for performing state evaluation based on the standardized multi-mode monitoring data set to obtain an equipment state monitoring evaluation result; the digital twinning module is used for constructing a digital twinning model and performing digital twinning analysis on the equipment state monitoring and evaluation result through the digital twinning model to obtain a health index and a fault risk prediction result; the strategy generation module is used for generating an operation and maintenance strategy set based on the health index and the fault risk prediction result; and the strategy execution module is used for executing operation and maintenance operation according to the operation and maintenance strategy set and recording an operation and maintenance execution effect.

The invention discloses a high-sensitivity flexible tactile sensor, a preparation method thereof and an intelligent robot with a body, and the high-sensitivity flexible tactile sensor comprises a flexible chamber substrate, an anti-corrosion protection ring, a flexible cover film, a sensing material layer and a plurality of projection structures. According to the high-sensitivity flexible tactile sensor, due to the innovative design of the flexible sealing cavity substrate, the flexible cover film and the protruding structure, the flexible tactile sensor shows high sensitivity and low detection limit. Meanwhile, through the arrangement of the convex structure, the close-range sensing performance of the flexible sensor and an interaction object is improved, the micro-deformation capability of the sensor is enhanced through the multi-layer deformation of the convex structure, the flexible cover film and the cavity, and the sensitivity of the sensor is further improved.

The invention belongs to the technical field of VOC gas detection, and particularly relates to a VOC detector which comprises a bottom shell, the upper side of the bottom shell is fixedly connected with a detector body, the outer wall of the bottom shell is provided with a connecting port, the connecting port is detachably connected with a pipeline head, a filter screen is detachably connected in the bottom shell, and the pipeline head is detachably connected with the filter screen. And a protection mechanism and an auxiliary shake-off assembly are arranged in the connecting port. According to the VOC detector, through the use of the protection mechanism, after the pipeline head is connected with the connecting port, the pipeline head extrudes the protection ring, after the pipeline head is fixed, the ejector rod can eject the protection cover to be opened, so that subsequent gas can enter the detector body for detection, and when the detector body is not used, the pipeline head is separated from the connecting port, so that the pipeline head is separated from the connecting port; under the action of the reset spring, the protection ring is reset, and meanwhile, the protection cover on the protection ring rotates and resets under the action of the torsion spring, so that the accuracy of subsequent detection of the device is ensured.

The utility model discloses a high-sensitivity flexible tactile sensor, a sensor module and an intelligent robot with a body, the high-sensitivity flexible tactile sensor comprises a flexible chamber substrate, an anti-corrosion protection ring, a flexible cover film, an induction material layer and a plurality of convex structures, the flexible chamber substrate comprises a flexible substrate, the anti-corrosion protection ring is arranged on the flexible substrate, and the anti-corrosion protection ring is arranged on the anti-corrosion protection ring. The electrode layer and the flexible bonding layer are sequentially and regularly arranged on the front face of the flexible substrate, the flexible bonding layer surrounds an interdigital electrode area of the electrode layer to form a cavity structure, and an electrode lead of the electrode layer is led out of the cavity structure. According to the high-sensitivity flexible tactile sensor, due to the innovative design of the flexible sealing cavity substrate, the flexible cover film and the protruding structure, the flexible tactile sensor shows high sensitivity and low detection limit.

The invention discloses an intelligent ring for a blind person, relates to the technical field of travel assistance for the blind person, and aims to solve the problem that an existing travel auxiliary tool for the blind person cannot provide comprehensive and timely travel assistance for the blind person, the intelligent ring comprises a wearing ring and a protection ring which are used for forming the ring, and is characterized in that a storage cavity is formed between the wearing ring and the protection ring; a 360-degree ultrasonic sensor array, a high-precision microprocessor, four groups of linear vibration feedback modules, a low-power-consumption Bluetooth 4.0 module and a rechargeable lithium battery are arranged in the accommodating cavity; the 360-degree ultrasonic sensor array comprises four sets of micro sensors which are located on the front side, the rear side, the left side and the right side of the containing cavity respectively, and the range of a single set of micro sensors is 120 degrees, so that all-directional coverage of the surrounding 360-degree space is achieved, and the blind can sense obstacles from all directions. The method has the advantage that the blind user can comprehensively and timely obtain the travel information.

The invention relates to the technical field of sealing, in particular to a sealing structure, a gallium nitride production reaction furnace and a horizontal gallium nitride production system. The sealing structure comprises a main pipe body, a protective ring, a guide pipe, a piston, a pressure sensor, a gas detection sensor and a data center. An air inlet flange is arranged at the air inlet end of the main pipe body. An annular groove is formed in the inner ring wall of the additional protection ring, the additional protection ring is arranged on the air inlet flange in a sleeving mode, the sealing face of the air inlet flange is arranged corresponding to the annular groove, and sealing treatment is conducted between the additional protection ring and the air inlet flange. One end of the guide pipe is fixedly connected with the protective ring and communicated with the annular groove, and the guide pipe is arranged in the axial direction of the main pipe body. The piston is in sliding fit in the guide pipe. The side, away from the protective ring, of the piston is fixedly connected with a piston rod. The pressure sensor is used for detecting the air pressure in the annular groove, and the gas detection sensor is used for detecting whether corresponding gas exists in the annular groove or not. And the pressure sensor and the gas detection sensor are electrically connected with the data center. The sealing effect can be monitored in real time.

The utility model discloses a temperature sensor with a protective structure for an engineering vehicle, which belongs to the technical field of temperature sensors and comprises a connecting end and a second connecting pipe, one side of the outer surface of the second connecting pipe is fixedly connected with a connecting circular ring, one side of the outer surface of the connecting circular ring is fixedly connected with a sensing probe, and the sensing probe is fixedly connected with the connecting end. A protection device is arranged on the outer surface of the sensing probe; according to the utility model, through the arrangement of the protection ring and the scraping plate, the protection ring is sleeved on the outer surface of the sensing probe to realize the connection of the protection device and the sensing probe, and at the moment, the protection ring can protect the sensing probe, so that the sensing probe cannot be in direct contact with external dust and chippings; therefore, dust and chippings can be prevented from adhering to the outer surface of the sensing probe to cause deviation of measured data, and external impact or collision can also be prevented from directly acting on the sensing probe to cause damage or even damage to the sensing probe.

The present invention relates to an intelligent ring network cabinet with a fault-automatic power-off function, comprising a ring network cabinet body, a wiring board provided inside the ring network cabinet body, nine short-circuit circuit breakers provided on the front of the wiring board, insulating handles provided inside the short-circuit circuit breakers, and a lifting mechanism provided on the lower surface of the ring network cabinet body for adjusting the height of the ring network cabinet body. The intelligent ring network cabinet with a fault-automatic power-off function controls the distance between the lower surface of the ring network cabinet body and the ground by lifting the floor with a second driving rod, and moving the bottom plate upward to pull the support rod out from the inside of the sleeve rod, thereby effectively preventing the intrusion of ground moisture, protecting the electronic components inside the ring network cabinet body, and increasing their service life. By providing an alarm above each short-circuit circuit breaker, when one of the alarms sounds, it means that the circuit breaker below the alarm is in a disconnected state, thereby quickly locating the disconnected short-circuit circuit breaker.

The invention provides a protection ring resistor detection circuit, a protection ring resistor detection method and a memory. The protection ring resistor detection circuit comprises a plurality of reference resistors, and the resistance values of the reference resistors are different; the first power supply is connected with the first end of the protection ring and the first ends of the plurality of reference resistors and is used for inputting first input voltage to the protection ring and the plurality of reference resistors; the current adjusting module is connected with the second end of the protection ring and the second ends of the plurality of reference resistors, and is configured to enable the current flowing through the protection ring and the plurality of reference resistors to have the same current value; and the resistance detection module is configured to obtain a first voltage value of the second end of the protection ring and a second voltage value of the second end of each reference resistor, and compare the first voltage value with each second voltage value to obtain a resistance value of the protection ring. The protection ring resistance detection circuit can accurately detect the resistance of the protection ring so as to accurately judge whether the protection ring fails or not.

The utility model relates to the technical field of discharging control, and discloses polystyrene discharging control equipment which comprises a discharging frame, a discharging adjusting mechanism is arranged in the discharging frame, and a quick release mechanism is arranged on the front side of the discharging frame. The discharging adjusting mechanism comprises a material guiding ring, the exterior of the material guiding ring is fixedly connected to the interior of the discharging frame, a conical ring is fixedly connected to the top of the material guiding ring, a material guiding cone is slidably connected to the interior of the material guiding ring, a limiting groove is formed in the material guiding cone, and a slope rod is fixedly connected to the bottom of the material guiding cone; a first spring is arranged outside the inclined plane rod in a sleeving mode, and a protection ring is slidably connected into the material guiding cone. According to the utility model, the gap between the material guide cone and the conical ring is increased, and the flow speed of materials passing through the gap is accelerated, otherwise, the flow speed is slowed down, so that the accurate control on the discharging speed can be realized, different use requirements can be met, and the production efficiency can be greatly improved.

The invention discloses an informatization equipment interface anti-misplug protection device, and relates to the interface anti-misplug technology field, the informatization equipment interface anti-misplug protection device comprises an anti-misplug pressing sheet, the top of the anti-misplug pressing sheet is clamped with a push plate, and one end of the push plate is attached with an interface indication sheet. The protection shell has the advantages that the protection shell forms a layer of interface connection protection ring on the inner ring of the interface of the informatization equipment, and in the interface connection process, a connector is inserted into the interface and enters the protection shell firstly to extrude the anti-misplug pressing sheet until the anti-misplug pressing sheet touches the stop protection ring; the anti-misplug pressing sheet pushes the interface indicating sheet to slide out of the protective shell through the extrusion of the push plate, and the interface is clearly identified through the interface information on the interface indicating sheet, so that the joint is stopped by the stop protective ring when not completely inserted into the interface, and whether the interface is correctly connected is judged through the indication of the interface information. And when the connection is correct, the connection acting force is increased to enable the joint to extrude the stop protection ring to finish connection, and if the connection is wrong, the joint is pulled out.

The invention relates to the technical field of gravity center measurement, in particular to a gravity center horizontal measuring frame which comprises a main body plate, a clamping and measuring mechanism for clamping objects in any shape and measuring the gravity center is arranged at the upper end of the main body plate, and the clamping and measuring mechanism comprises four first containing grooves symmetrically formed in the upper end of the main body plate. Protection rings are fixedly connected to the positions, in the four first containing grooves, of the main body plate correspondingly, second containing grooves are formed in the positions, in the first containing grooves, of the upper end of the main body plate correspondingly, and an overturning mechanism for overturning an object and measuring the weight of the object is arranged in the main body plate; a balance mechanism for keeping the main body plate horizontal is arranged below the main body plate; a third pressure sensor at the telescopic end of a third electric telescopic rod can accurately measure the weight of the object, it is guaranteed that the real-time weight of the object can be accurately measured before measurement, and the precision of subsequent gravity center measurement is improved.

To arrange a safe and closed customer-specified type environment by own company's data, company B's data and data on the internet, by utilizing a data protection environment, and to support decision making of every viewpoint such as management, strategies, human resources, sales, marketing and the like by generative AI analysis.SOLUTION: A system utilizes a data protection environment, arranges a safe and closed customer-specified type environment by own company's data, company B's data and data on the internet, and supports decision making of every viewpoint such as management, strategies, human resources, sales, marketing and the like by generative AI analysis.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of signal data lines, in particular to an anti-fracture anti-aging signal data line, which comprises a signal data line main body, an anti-aging layer is arranged on the surface of the signal data line main body, end connectors are fixedly mounted at two end parts of the signal data line main body, a socket is arranged on one end connector, and the other end connector is provided with a socket. One end joint is provided with a socket, the other end joint is provided with an insulating convex block, the insulating convex block is fixedly provided with a plug, the top surfaces of the socket and the insulating convex block are fixedly provided with fixed joints, soft rubber sleeves are arranged between the fixed joints and the corresponding end joints, spiral protection rings are wound on the soft rubber sleeves, and the signal data line main body is provided with a binding assembly. The binding assembly comprises a sliding sleeve which sleeves the signal data line main body and is in sliding connection with the signal data line main body, and a binding belt is fixedly installed on the sliding sleeve. The utility model has an anti-fracture protection effect, is not easy to damage, and is favorable for prolonging the service life.

Examples of the present disclosure describe systems and methods for sharing memory using a multi-ring shared, traversable and dynamic database. In aspects, the database may be synchronized and shared between multiple processes and / or operation mode protection rings of a system. The database may also be persisted to enable the management of information between hardware reboots and application sessions. The information stored in the database may be view independent, traversable, and resizable from various component views of the database. In some aspects, an event processor is additionally described. The event processor may use the database to allocate memory chunks of a shared heap to components / processes in one or more protection modes of the operating system.

The utility model discloses a protective device for a weak current engineering line pipe, which belongs to the technical field of line pipe protection and comprises a lower protective ring and an upper protective ring, the lower protective ring and the upper protective ring are respectively connected with a lower positioning ring and an upper positioning ring, and a plurality of adjusting components are arranged between the lower positioning ring and the upper positioning ring and between the lower protective ring and the upper protective ring. The adjusting assembly comprises a telescopic rod and a first spring, and a plurality of inserting blocks are fixedly connected to the lower protection ring. Through cooperative use of the devices, the positions of a lower positioning ring and an upper positioning ring are adjusted, the lower positioning ring and the upper positioning ring abut against the side wall of a cable under pushing of a first spring, the cable is prevented from shaking and beating a lower protection ring and an upper protection ring, an insertion block is limited through an arranged limiting mechanism, and the insertion block is prevented from being damaged. And the lower protection ring and the upper protection ring are fixed, so that the insertion block is prevented from moving out of the insertion hole under the action of external force, and the connection stability of the lower protection ring and the upper protection ring is improved.

An assembly for use with a processing chamber, along with methods of using such, are described. The assembly includes a ring structure. The ring structure includes removably coupled to a vacuum interface of the processing chamber. The ring structure includes an inner ring comprising a plurality of overlapping blades, the plurality of overlapping blades being operated to move towards or away from a center of the inner ring to vary a size of an opening of the inner ring. The ring structure also includes an outer ring disposed around the inner ring, the outer ring having a first portion and a second portion protruding from the first portion, the first portion and the second portion being in contact with the inner ring, wherein the inner ring is in contact with a portion of the vacuum interface.

The present application provides a readout chip for a detector, a detector module and an X-ray system, wherein the readout chip for the detector comprises: a plurality of pixel input pads PADs arranged in a matrix and distributed in the central area of ​​the readout chip; an auxiliary PAD different from the pixel input PAD and distributed at the edge of the readout chip; at least one guard ring internal PAD distributed between the plurality of pixel input PADs and the auxiliary PAD; and a guard ring bonding PAD distributed on the same side of the auxiliary PAD, wherein at least one guard ring internal PAD is connected to the guard ring bonding PAD so as to apply a bias voltage to the at least one guard ring internal PAD through the guard ring bonding PAD, and a connection line between the at least one guard ring internal PAD and the guard ring bonding PAD is not interconnected with other connection lines in the readout chip.

The utility model relates to the technical field of engineering surveying, in particular to unmanned aerial vehicle oblique photogrammetry equipment for earthwork surveying, which comprises a machine body, four wings are fixedly connected to the upper surface of the machine body, a mounting ring is fixedly connected to the lower surface of the machine body, and a camera is mounted on the surface of the mounting ring. A protection device is arranged on the side, close to the wings, of the aircraft body, the protection device comprises a protection ring, the protection ring is installed on the upper surface of the aircraft body, four sliding grooves are formed in the lower surface of the protection ring, sliding blocks are slidably connected to the surfaces of the sliding grooves in the four protection rings, and U-shaped rods are fixedly connected to the lower surfaces of the sliding blocks; the side face of the sliding block is fixedly connected with a damper, and the other end of the damper is fixedly connected with the protection ring. The unmanned aerial vehicle oblique photogrammetry device solves the problem that when the unmanned aerial vehicle oblique photogrammetry device is collided, wings of the unmanned aerial vehicle oblique photogrammetry device are prone to being damaged.

The invention belongs to the technical field of greenhouse monitoring, and particularly relates to a greenhouse environment monitoring intelligent sensor based on a star flash technology, which comprises an integrated box body, a temperature sensing module, a humidity sensing module, a star flash communication module and an intelligent processor are arranged in the integrated box body, and a probe and a connecting wire are arranged at the bottom of the integrated box body; a protective cover is arranged outside the probe, vent grooves are uniformly formed in the side wall of the protective cover, an air guide hole is formed in the bottom of the protective cover, and an air guide fan is arranged on the upper side of the air guide hole; the protection ring in the protection cover is controlled to rotate, so that the ventilation area in the protection ring rotates to the position corresponding to the ventilation groove, external airflow needs to penetrate through the filter screen in the air guide groove, particle impurities in the external airflow are separated out, and then the external airflow can enter the protection cover to be in contact with the probe; therefore, particle impurity adhesion on the surface of the probe is reduced, and the impurities are prevented from being combined with water vapor on the surface of the probe to form a dirt layer which affects the detection precision of the sensor.

The utility model discloses an out-hall calling landing box with an anti-damage function, which belongs to the technical field of elevators, and comprises a calling landing box front part, a first groove is arranged in the middle of the calling landing box front part, a connecting frame is arranged in the middle of the first groove, a second groove is arranged in the middle of the connecting frame, a limiting groove is arranged in the middle of one side of the connecting frame, and the limiting groove is arranged in the middle of the other side of the connecting frame. A plurality of connecting holes are formed in the position, located on the inner surface of the limiting groove, of the connecting frame, buffer devices can be arranged in the connecting holes through bolts, a fixing plate is fixedly connected to the other sides of the buffer devices, a connecting plate is fixedly connected to the other side of the fixing plate, and a display screen groove is formed in the upper end of the other side of the connecting plate. By means of the plastic plate and the symmetrical protection rings, damage caused by collision is prevented, by means of the multiple buffering devices, the connecting plate has a certain gap length for moving inwards from the front face, and therefore the connecting plate and elements on the connecting plate are protected.

The invention relates to a three-mode trigger layout, a chip and a method for resisting single event upset, and the method comprises the steps: adjusting and designing the layout of a circuit layout of a three-mode redundancy circuit, placing three-mode redundancy trigger units in a staggered manner, isolating the trigger through an internal module, and carrying out the protection ring reinforcement of a voter disposed at the center of the three-mode redundancy trigger units. The external interference is isolated to reduce the probability of voting failure, the multi-bit flipping probability is reduced to ensure the safety of three-copy data by utilizing the modes of overall centralized layout, staggered arrangement of trigger units and protection ring reinforcement of the voter, the interconnection is minimized to reduce the time sequence mismatch problem, and the voting efficiency is improved. Meanwhile, the influence of external interference on the voter is isolated, so that the probability of voting failure is reduced, the bottleneck of traditional layout design is broken through finally, the inherent technical defects of multi-bit flipping, time sequence mismatching and the like induced by particle tracks are solved from the physical level, and a more practical and effective reinforcing scheme is provided for the triple modular redundancy trigger.

The utility model provides a port equipment operation state Internet of Things real-time monitoring scanning device, which comprises an Internet of Things real-time monitoring scanning support, a scanning U-shaped frame body is arranged above the Internet of Things real-time monitoring scanning support, and the angle of a monitoring scanning annular shell can be flexibly adjusted by adjusting a rotating shaft and a scanning shell angle adjusting knob. And the monitoring coverage range is expanded. And a laser scanning template, a monitoring scanning camera and an infrared scanning sensor are integrated, so that multi-dimensional data acquisition is realized, and rich basis is provided for judging the state of equipment. The scanning rotating disc is combined with the scanning direction indicating disc, so that the scanning direction can be quickly adjusted to adapt to complex environments. And through convenient angle adjustment, a rotating disc protection ring and a camera protection film, the operation convenience is improved, core components are protected, and it is guaranteed that images are clear. The device overhaul plate is convenient to overhaul and maintain, and cost is reduced. And data can be transmitted to a monitoring center in real time, so that managers can timely grasp the equipment state and timely deal with abnormities.

The invention relates to the technical field of avalanche detectors, particularly provides an avalanche detector and a preparation method, and aims to solve the problem that small-size pixels are difficult to obtain in the preparation process of an existing avalanche detector. In order to achieve the purpose, the preparation method of the avalanche detector comprises the steps that a groove is formed in an epitaxial layer through a shallow groove isolation technology, the side, away from a substrate, of the epitaxial layer is isolated into islands arranged in an array mode, and then doping is conducted on the bottom and the side wall of the groove to form a protection ring surrounding the islands; and finally, forming a gain layer and a contact layer in the island to form a pixel. Good isolation between pixels can be obtained by adopting a shallow trench isolation technology, so that the avalanche detector with small size and large array pixels is obtained.

The utility model discloses a kind of complex flow passage integration 3D printing forming platform of marine propeller, it is related to 3D printing field, and it includes: base;First pivot, the first pivot rotation is connected in base top end;Fixed disc, the fixed disc is sleeved in the outside of first pivot, drive mechanism is provided on the fixed disc, drive mechanism is provided on top disc, and the drive mechanism is used to drive top disc to be inclined;The outer edge of top disc top end is provided with protection ring, after second motor is started, can be matched by the cooperation of first bevel gear and second bevel gear, angle inclination of top disc is driven, by the cooperation of worm and worm wheel, top disc can reach any angle, printing operation is facilitated from different angle, when 3D printing head is located above top disc, can be matched 3D printing head rotation or only rely on the rotation cooperation of top disc, can make the complex flow passage of marine propeller more easily be printed out, avoid flow passage angle complex, more widely applicable.

The utility model discloses a notebook computer mainboard reinforcing structure, specifically at notebook computer mainboard technical field, including mainboard body, the mainboard body top is provided with the washer, the washer is made of rubber material, the washer top is provided with first bolt, first bolt one end penetrates mainboard body and extends to mainboard body outside, mainboard body one side is provided with the connecting barrel, the connecting barrel bottom is provided with the protection ring, the connecting barrel top is provided with the connecting mechanism. The utility model discloses through setting up the connecting structure, makes the mainboard body no longer is single through directly screwing into the bolt mode and installs when, but can through first bolt screwing into the position of mainboard body fixed, in the connecting mechanism is installed in mainboard body one side through second bolt with the baffle in the position of first bolt is limited to the position of mainboard body with the baffle in the setting of locating plate and locating plate in the setting of connecting mechanism.