60 results about "Guard - security" patented technology

The invention provides a coal mine security power supply underground load switching method and system, and relates to the technical field of power supply. The underground load switching method for the coal mine security power supply comprises the following steps: after a ground state monitoring unit determines that a ground substation is in a whole-substation power loss state, an intelligent control unit starts the security power supply; the power supply state monitoring unit monitors the operation state of the security power supply and evaluates to obtain the first real-time maximum output power of the security power supply; the intelligent control unit calculates first system available power according to the first real-time maximum output power and a preset safety coefficient; determining a target load based on the first system available power, the rated power corresponding to each underground load and a preset underground load priority; wherein the sum of the rated power of all the target loads is smaller than the first system available power, and the priority is used for indicating the importance sequence of the underground loads; and the load controller controls the switching system to supply power to the target load.

The utility model provides a kind of security filter convenient to replace, including shell and the screw rod of the lifting assembly being arranged in its upper cavity, first sensor, second sensor, sealing unit, a plurality of first filter components and a plurality of second filter components, and first sensor, second sensor are respectively installed in the upper portion and lower portion in shell;The upper portion of shell is connected with upper cover, and opposite sides are respectively provided with water inlet and water outlet, and first filter component and second filter component are sequentially and alternately sleeved in the outside of lifting assembly screw rod below water inlet, and first filter component, second filter component are arranged at angle;Lifting assembly is used to drive first filter component, second filter component up and down movement.The security filter convenient to replace of the utility model, the structure of lifting assembly and filter component being arranged, so that filter plate can be automatically lifted to the outside of shell, facilitate staff maintenance and replacement, reduce the operation difficulty, improve work efficiency.

This invention provides a fall detection and intelligent protection method comprising mobile protection software installed on a mobile phone, which includes a map and is accessible to the user after registration and login; and a backend management system, managed by an administrator, for managing the mobile protection software; upon detecting a phone fall using the phone's accelerometer or gyroscope, the mobile protection software intelligently senses the fall and automatically sends a distress message to nearby property security guards, social workers, neighbors, etc.; upon receiving the distress message, other nearby users' mobile protection software views the location of the person seeking help on the map and provides assistance. The scope of protection of this invention includes, but is not limited to, the above embodiments. The scope of protection of this invention is defined by the claims, and any substitutions, modifications, or improvements readily conceived by those skilled in the art fall within the scope of protection of this invention.

The utility model relates to an integrated cabinet structure for controlling, monitoring and protecting a steam turbine, which belongs to the technical field of communication equipment and comprises a control monitoring cabinet, a state monitor, a speed regulator, a two-out-of-three tripping protector and a state monitoring display are arranged in the control monitoring cabinet, and the state monitor, the speed regulator, the two-out-of-three tripping protector and the state monitoring display are arranged on the front portion of the control monitoring cabinet. The control monitoring cabinet is internally provided with a relay and a terminal strip at the rear part, and the relay and the terminal strip are adopted to carry out circuit communication on the state monitor, the speed regulator, the two-out-of-three tripping protector and the state monitoring display. The device is compact in structure, complete in function, convenient to operate and good in operation stability. The integrated, standardized and modularized design concepts are applied to the speed regulation control and monitoring security system of the small steam turbine, the overall performance of the system can be improved, and the reliability and maintenance convenience of the system can be remarkably improved.

1. Name of the product in this design: Security Bracket Base. 2. Purpose of this design: For use in security brackets. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model discloses an on-line reverse osmosis cleaning device, aims to provide an on-line reverse osmosis cleaning device capable of effectively cleaning a reverse osmosis device, and adopts the technical scheme that the on-line reverse osmosis cleaning device comprises a raw water tank, a multi-medium filter is connected onto the raw water tank, a first security filter is connected onto the multi-medium filter, and a second security filter is connected onto the first security filter. The first security filter is connected with a reverse osmosis machine, an outlet of the reverse osmosis machine is also connected with a pure water tank, and the reverse osmosis machine is also provided with a cleaning device.

The utility model relates to the technical field of security filters, and discloses an anti-fouling and anti-blocking security filter which comprises a filter, a separation disc is fixedly connected in the filter, a plurality of backwashing columns are fixedly connected to the top of the separation disc and are annularly and uniformly arranged, and a plurality of leakage holes are formed in the top of one side, close to the backwashing columns, of the separation disc. First clamping plates are slidably connected into the four first clamping grooves, the tops of the four first clamping plates are fixedly connected with the same filter element, a fixing mechanism used for fixing the filter element is arranged at the top of the filter element, an impeller is fixedly connected into the side, away from the separation disc, of the filter element, and a rotating mechanism used for rotating the filter element is arranged on the surface of the impeller. A closing mechanism used for closing the impurity discharging opening is arranged in the impurity discharging opening. Through the arrangement of the backwashing column, the filter can be cleaned on line, so that the automation degree of water treatment is improved, and the personnel cost and the labor intensity are reduced.

The application discloses a multi-section security MCC common single diesel generator set emergency power supply switching method, and belongs to the field of thermal power generation, which comprises the following steps: when the working and standby power supply of any section of security MCC are all lost, the CTTS sends a start instruction to the diesel generator set; after the diesel generator set is started, the section of security MCC is switched to diesel supply; the rest of the lost sections are switched in a preset order until all the lost sections are switched to diesel supply; when the working power supply of any section of security MCC is restored, the ATS switches to the power supply and sends a synchronization instruction; after the diesel generator set is synchronized, the section of CTTS control is parallel to the plant power for a short time, then the plant power is switched back, the connection with the diesel generator set is disconnected and an exit signal is sent; after receiving the signal, the diesel generator set delays and disconnects the corresponding contact breaker; the above-mentioned restoration steps are repeated until all the security MCCs restore the plant power supply, and finally the diesel generator set is disconnected from the total outlet breaker and is stopped. Through grouping restoration and synchronization switching, the application realizes the orderly access of the security MCC to the diesel generator after the power supply is lost, and the smooth switching back to the plant power when the power supply is restored, thereby ensuring the continuous and reliable power supply.

According to the temperature identification intelligent guarding method, mobile terminal guarding software installed on a mobile phone is included, and the software is provided with a map and can be used after being held by a user and registered and logged in; the background management system is held by a manager and is used for managing the mobile terminal guard software; after detecting that the environment exceeds a certain temperature through a temperature sensor of a mobile phone, the mobile terminal guarding software can intelligently sense and automatically send help information to nearby property security guards, social workers, neighbors and the like; and after the mobile terminal guard software of other nearby users receives the help seeking information, information such as the position of the help seeker is checked on a map, and assistance is implemented. The protection range of the invention comprises but is not limited to the above implementation mode, the protection range of the invention is based on the claims, and any replacement, deformation and improvement which are easy to think by technicians in the field made for the technology fall into the protection range of the invention.

The utility model belongs to the technical field of filtration, and particularly relates to a novel security filter which comprises a filter body and supporting legs, the supporting legs are fixedly connected to the lower end of the filter body at equal intervals, a top cover is connected to the upper end of the filter body, and a liquid inlet pipe is fixedly connected to the upper portion of the left end of the filter body. A liquid outlet pipe is fixedly connected below the right end of the filter body, and filtering mechanisms are arranged at the inner end and the outer end of the filter body and comprise bottom plates fixedly connected to the lower end of the inner side of the filter body. According to the novel security filter, when the filter main body carries out filtering work, the electromagnetic valves in the cleaning pipe and the blow-off pipe are closed, the electromagnetic valves in the liquid inlet pipe and the liquid outlet pipe are opened, and liquid to be filtered is injected into the filter main body from the liquid inlet pipe; and the liquid is filtered by the filter element, flows downwards from the interior of the filter element, flows into the bottom end in the filter main body through the water outlet hole, is discharged from the liquid outlet pipe below the right end of the filter main body and is collected.

The utility model provides a high-flux folding cartridge filter element, and particularly relates to the technical field of cartridge filter elements, the high-flux folding cartridge filter element comprises a filter element, the filter element comprises an end cover, the bottom of the end cover is fixedly connected with an inner pipe, and according to the high-flux folding cartridge filter element, when filter cotton needs to be replaced, the filter cotton is wrapped on the outer side of the inner pipe; then the first limiting frame and the second limiting frame are arranged on the outer side of the filter cotton in a sleeving mode, the insertion columns on the first limiting frame are connected with the insertion holes in the second limiting frame in an inserted mode, during insertion, the anti-disengaging plug deforms and is guided through the arc face at one end of the anti-disengaging plug, interference fit and mutual insertion are achieved, and at the moment, one side of the anti-disengaging plug is attached to one side of the second fixing plate; and one side of a limiting ring is attached to the other side of the second fixing plate, so that the limiting effect is achieved, an inner pipe is matched, so that filter cotton can be fixed, then a handle is pressed downwards, the arc surface of a sliding column is attached to the outer walls of a first limiting frame and a second limiting frame, and the secondary limiting effect is achieved.

The utility model discloses a luminous spontoon for security patrol, and belongs to the technical field of luminous spontoons. A luminous baton for security patrol comprises a baton body, a holding portion is fixedly mounted at the end of the baton body, a window breaking cone is fixedly mounted at the end of the hitting head, an illumination ring is coaxially sleeved on the cylindrical surface of the window breaking cone, LED lamp beads are annularly distributed in the illumination ring, and the illumination ring is fixedly mounted on the cylindrical surface of the baton body. A buffer pad is fixedly mounted between the window breaking cone and the lighting ring; the lighting ring is used in cooperation with the window breaking cone, on one hand, the visual field of patrol at night can be improved, on the other hand, the window breaking cone can be used for rapidly breaking window glass, trapped persons are rapidly rescued, and the problem that due to the fact that the contact face between a conventional baton and a vehicle window is large, the glass can be broken through repeated hitting is effectively solved; and the rescue opportunity of the trapped person is delayed.

The invention belongs to the technical field of intelligent security and protection, and particularly relates to a credible supervision and co-processing method and system for security and civil air defense. The method comprises the following steps: obtaining supervision rule configuration input by a user, generating a supervision task instruction according to the supervision rule configuration, and issuing the supervision task instruction to a residence point supervision terminal; receiving personnel behavior data collected by the terminal in response to the instruction, and generating an abnormal behavior signal based on space-time attention fusion analysis; generating a corresponding-level alarm instruction based on the abnormal signal, converting the alarm instruction into a multi-mode alarm message, and distributing the multi-mode alarm message to a management terminal; responding to the high-level alarm, calling the behavior data of the associated personnel, integrating the behavior data into a structured supervision evidence packet through a block chain smart contract, and carrying out distributed credible evidence storage; and generating a supervision report and persistently storing the supervision report in a database so as to automatically trigger a co-processing action. The problems that data islands are serious, evidence storage lacks a safety mechanism, and an automatic closed-loop processing mechanism does not exist in an existing scheme are solved.

The utility model discloses a movable property security guard kiosk, which relates to the technical field of guard kiosk, and comprises a security guard kiosk, hydraulic rods are symmetrically arranged at the bottom of the security guard kiosk, the telescopic shaft ends of the hydraulic rods are fixedly connected with connecting blocks, and the connecting blocks are rotatably connected with a connecting frame. A lifting assembly is arranged, a hydraulic rod drives a connecting block to slide along the bottom of the security pavilion, a connecting frame is driven to rotate through sliding of the connecting block, and a connecting rod is driven to move through rotation of the connecting frame, so that a rotating frame is pushed to rotate along a fixed block, the rotating frame drives universal wheels to rotate, and the universal wheels make contact with the ground; the supporting blocks and the steps are jacked up, the bottom of the security pavilion is separated from the ground, the security pavilion can be driven to move by pushing the security pavilion, convenience and rapidness are achieved, after the security pavilion reaches the needed position, the hydraulic rods move reversely, the universal wheels are driven to rise, the supporting blocks and the steps make contact with the ground, and the position of the security pavilion is fixed. And the position of the security booth can be conveniently changed according to the on-duty position.

According to the light recognition intelligent guarding method, mobile terminal guarding software installed on a mobile phone is included, and the software is provided with a map and can be used after being held by a user and registered and logged in; the background management system is held by a manager and is used for managing the mobile terminal guard software; the mobile terminal guarding software senses environment changes through a light sensor, and when smoke or flame occurs, the mobile terminal guarding software can intelligently sense and automatically send help information to nearby property security guards, social workers, neighbors and the like; and after the mobile terminal guard software of other nearby users receives the help seeking information, information such as the position of the help seeker is checked on a map, and assistance is implemented. The protection range of the invention comprises but is not limited to the above implementation mode, the protection range of the invention is based on the claims, and any replacement, deformation and improvement which are easy to think by technicians in the field made for the technology fall into the protection range of the invention.

The invention discloses an EPS-UPS security power supply control system, and belongs to the technical field of security power supplies, the EPS-UPS security power supply control system comprises an EPS module, a UPS module, a power supply module, a power supply switching module and an equipment module, the power supply module comprises a first power supply module and a second power supply module which are connected in parallel, the first power supply module and the second power supply module are electrically connected with the EPS module, and the power supply switching module is electrically connected with the equipment module. The EPS module is electrically connected with the equipment module, the EPS module is connected to a circuit of the UPS module in parallel and is electrically connected with the first power supply module and the second power supply module, and when the output voltage of the power supply modules is unstable or power failure occurs, the EPS module and the UPS module serve as emergency power supplies to supply power to a load main loop and a control loop respectively. And no power loss of the equipment module power supply is ensured. According to the invention, an uninterrupted emergency power supply can be provided for important equipment under the condition of power loss of the whole plant, continuous power supply of the important equipment under the condition of power loss is ensured, and safe operation of the important equipment of an enterprise is ensured.

The invention relates to the technical field of audio wiring testing, in particular to an audio wiring testing system and device, and the system comprises a testing access unit, a signal processing and analysis unit, a control and interaction unit, and a data storage unit. The test access unit is used as a conductive path to be inserted into a gap between the security unit and the terminal row of the sound distribution unit of the test telephone, when the test access unit is inserted in place, the conductive path temporarily bypasses an overvoltage protection assembly in the security unit, and meanwhile, a low-resistance and safe electrical test path is established between a test system and a target line; the signal processing and analysis unit comprises a parameter acquisition module and an overvoltage protection assembly detection module; on the premise of not influencing the conversation of a user, the comprehensive deep test from basic electrical parameters to call signaling does not need to pull out a security unit, fault points can be segmented, the test time is shortened, the dependence on the experience of operation and maintenance personnel is greatly reduced, the accuracy and efficiency of the test are improved, and meanwhile, the method is convenient to adapt to different working scenes.

The utility model relates to the technical field of filter equipment, in particular to a security filter which comprises a barrel, a top cover is arranged at the top of the barrel, a plurality of filter elements are arranged in the barrel, a limiting ring is arranged below the inner wall of the barrel, and an upper rotating plate and a lower rotating plate are arranged at the upper end and the lower end of each filter element respectively. The lower rotating plate is located above the limiting ring, rotating sealing rings are arranged on the outer edge of the upper rotating plate and the outer edge of the lower rotating plate correspondingly, a plurality of pushing plates are arranged below the upper rotating plate in the circumferential direction, a water inlet pipe working towards the pushing plates is arranged above the side wall of the barrel, and a water outlet pipe is arranged at the bottom of the barrel. And a blow-off pipe is arranged on the side wall of the barrel and positioned above the lower rotating plate.

The application discloses a kind of wisdom security service management systems, it is related to wisdom security field, it solves the problem that existing wisdom security service management system has poor management effect, including: data acquisition module: mobile body trajectory dynamic acquisition and analysis are carried out to security sub-region, and the intersection of regional travel trajectory is obtained, the intersection intensity analysis data of region is obtained by analyzing the mobile body path deviation rate of regional travel trajectory intersection and mobile body density, mobile analysis module: the intersection of regional travel trajectory is divided into first type trajectory intersection and second type trajectory intersection, local traffic environment analysis is carried out to second type trajectory intersection, and traffic environment analysis data is obtained, congestion prediction module: according to traffic environment analysis data, the traffic area corresponding to the intersection of regional travel trajectory is predicted to be congested, and security service early warning is carried out according to the prediction result, the application can improve the pertinence and timeliness of wisdom security service management process.

The utility model belongs to the technical field of monitoring devices, and particularly discloses a port facility security monitoring device which comprises a monitoring camera, a hot air mechanism is arranged at the bottom end of the monitoring camera, the hot air mechanism comprises an installation plate fixedly installed at the bottom end of the monitoring camera, and one side of the installation plate is fixedly connected with an extension rod. A plurality of mounting parts are arranged on the outer surface of the hot air module; an electric fan is arranged in the hot air module; a separation net is fixedly connected to the bottom end of the hot air module; a hot air pipe is fixedly mounted at the top end of the hot air module; air outlets are formed in the top ends of the mounting blocks; and external natural air can be sucked in through the hot air mechanism and converted into hot air to be sprayed out, water mist or ice blocks on the glass can be removed, generation of the water mist and ice can be prevented, the situation that the definition of a monitoring picture is affected by the water mist or ice can be prevented, monitoring and protection of port facilities are improved, and safety is further improved.

This application relates to a reverse osmosis acid addition device and its regulation and control method, belonging to the field of reverse osmosis water treatment technology. To solve the problem of unreasonable acid addition points in the acid addition device, it includes a corrosion-resistant storage tank, a metering pump, a pulsation damper, a back pressure valve, a multi-stage static mixer, a security filter, an online water quality monitoring unit, and an intelligent control unit. The inlet of the metering pump is connected to the corrosion-resistant storage tank, and the outlet of the metering pump is connected sequentially to the pulsation damper and the back pressure valve, and then connected to the inlet pipe at the front end of the security filter, forming the acid addition point. This application ensures that the acid and the inlet water reach a fully uniform mixing state before entering the security filter, eliminating the defects of local over-acid corrosion of pipes and membrane elements caused by unreasonable acid addition points and insufficient mixing, as well as the defects of local high alkalinity still causing calcium carbonate scaling, thus ensuring the long-term stable operation of the reverse osmosis system and extending the service life of the membrane elements.

The utility model discloses a temporary service desk for doorkeepers and security guards, and relates to the technical field of service desks. The service desk comprises a service desk body, a weight increasing assembly is arranged on the inner wall of the service desk body, a height adjusting mechanism is arranged in the service desk body and comprises a support, the top end of the support is fixedly connected with the upper inner wall of the service desk body, and the lower inner wall of the support is fixedly connected with a supporting plate. According to the temporary service desk, the height of the temporary service desk can be conveniently and freely adjusted, so that the temporary service desk is suitable for being comfortably used by security guards with different heights, and the adaptability of the temporary service desk is improved; the temporary service desk structure is prevented from being easily shaken and even toppled during external force collision or strong wind, and the using safety performance of the temporary service desk structure is improved.

The invention relates to the field of security and protection, in particular to security monitoring alarm equipment which comprises a base, a motor, a monitoring box and a cleaning mechanism, a plurality of supporting legs are welded to the bottom of the base, a driving shaft is movably connected to the bottom of the base through a bearing, and the output end of the motor is welded to the bottom of the driving shaft. A transmission mechanism is arranged at the top of the driving shaft, a buzzer is fixedly connected to the top of the monitoring box, and an air cylinder is arranged at the top of an inner cavity of the monitoring box. According to the security monitoring alarm equipment, the output end of the motor drives the driving shaft to rotate, the driving shaft drives the threaded rod welded to the top to do circular motion, the threaded rod drives the threaded sleeve to rotate through the action of threads, the threaded sleeve drives the sliding sleeve to do 360-degree motion around the sliding ring through the connecting rod, and meanwhile the vertical position can be changed; therefore, the monitoring range of the smoke sensor is enlarged, and the situation that dead angles exist and cannot be accurately monitored is reduced.

The utility model relates to the field of power supply control equipment, in particular to a split-type direct-current dual-power-supply switching device, which comprises an alternating-current dual-power-supply switching device electrically connected to a UPS (Uninterrupted Power Supply) and a security power supply, a first switch is electrically connected between the alternating-current dual-power-supply switching device and the UPS, and a second switch is electrically connected between the alternating-current dual-power-supply switching device and the security power supply. The alternating-current dual-power-supply switching device is electrically connected with a plurality of alternating-current loads, and first switches are electrically connected between the alternating-current loads and the alternating-current dual-power-supply switching device; the system further comprises an intelligent direct current power supply device electrically connected to the UPS power supply and the security power supply, second switches are electrically connected between the intelligent direct current power supply device and the UPS power supply and between the intelligent direct current power supply device and the security power supply, and the intelligent direct current power supply device is electrically connected with a plurality of direct current loads. And a second switch is electrically connected between the intelligent direct current power supply device and the direct current load. The utility model can improve the reliability of power supply.

The invention discloses a steam turbine security system test solenoid valve group intelligent monitoring method and system, and belongs to the technical field of steam turbine security protection. In order to solve the problems that an existing steam turbine security system test solenoid valve group is incomplete in fault diagnosis, depends on artificial experience and lacks real-time state monitoring and risk grading, the method comprises the steps that sensors are arranged on all loops of the test solenoid valve group, and data of at least one physical quantity including pressure, temperature and wind speed are collected in real time; receiving a pressure switch action signal and an electromagnetic valve action signal from a steam turbine emergency trip system (ETS); based on a preset fault judgment logic table, performing logic combination judgment on the acquired data and the received signal, identifying a fault type and determining a corresponding risk level; and sending diagnosis information containing the fault type and the risk level to a DCS (Distributed Control System), and triggering a corresponding disposal operation according to the risk level. The method is used for safe operation of the steam turbine generator unit.

The invention relates to the technical field of computers, in particular to an intelligent scheduling method and system applied to security personnel, and the method comprises the steps: dividing the patrol into double patrol and full patrol based on a patrol time zone in daily patrol task data; acquiring information of each residence time point, and generating basic personnel requirements and emergency personnel requirements based on the change condition of the historical number of people demands of each residence time point; acquiring vehicle information, and distributing a basic security information set corresponding to each piece of parking lot information; on the basis of the patrol time and the specified security information, judging the specified security information in the basic security information set in the same time period, and generating a second security information set after screening personnel IDs through distance analysis; based on emergency personnel requirements, the ID of the parking lot is combined into an emergency group, vehicle matching and personnel matching are carried out based on the emergency group, and an emergency security information set is formed, and the intelligent scheduling method and system have the advantages of realizing intelligent scheduling to improve scheduling rationality and resource utilization rate.

The utility model discloses a spare power automatic switching and motor protection quick switching device for security section relates to security section equipment technical field. The utility model discloses utilize open contact and closed contact to realize motor controller control power supply and self -starting function detection voltage quick switching between work and standby power supply, guarantee the switch in the spare power automatic switching process and keep in the operating state, the power failure of each equipment in the section is shortened to 1 within the hour from 6 seconds to restore time. Guarantee unit safe and reliable operation, through open contact and closed contact respectively introduce this section bus voltage signal and spare section voltage signal to motor protection voltage terminal, utilize the opening and closing contact synchronous action when switching contactor action, realized this section bus voltage and spare section voltage effective isolation, prevent two section voltage loop event from happening, through the open contact of switching contactor string connection work power insurance and work position contact point, cooperate with the closed contact of spare control power that introduces, prevent two control power loop.

The invention relates to the technical field of safety protection, in particular to a security integrated command and dispatch platform system. Various data such as monitoring videos and real-time personnel positioning are integrated, data sharing and cooperative processing are realized through a software architecture, and a data island is broken; by applying artificial intelligence and big data analysis technologies, various security events are predicted and analyzed, and a scientific basis is provided for command decision making; various events in the security industry are monitored in real time, early warning rules are set, problems are found in time, and early warning is triggered, so that disposal measures are taken quickly; unified commanding is carried out on the security unit and the resident unit, efficient resource allocation and cooperative combat are achieved, and the emergency response speed is increased; various types of data are presented in a visual mode, such as electronic map labeling and tree diagram display, so that a command decision maker is assisted to intuitively understand the situation and make a decision. The system has the advantages of being easy to install and maintain, stable, reliable and capable of guaranteeing stable operation.

The application belongs to the technical field of filter elements, and discloses a high-flux folded security filter element, which comprises a folded filter element, a sealing plate, a mounting ring and an inlet pipe. A plurality of first inner plates are circumferentially and spacedly arranged near the central opening of the mounting ring, and a plurality of first outer plates are circumferentially and spacedly arranged away from the central opening. A plurality of second inner plates are circumferentially and spacedly arranged near the center of the sealing plate, and a plurality of second outer plates are circumferentially and spacedly arranged away from the center. The two sides of the first inner plate are respectively axially and slidably connected with the adjacent second inner plate, and the two sides of the first outer plate are respectively axially and slidably connected with the adjacent second outer plate. The axial sliding connection of the first inner plate with the second inner plate and the axial sliding connection of the first outer plate with the second outer plate realize dynamic adjustment of the filtering area of the filter element. When the flow rate is low, the sealing plate is close to the mounting ring, the folded filter element has dense wrinkles, and the filtering effect is good. When the flow rate is high, the fluid pressure drives the sealing plate and the mounting ring to be axially separated, the wrinkles are unfolded to expand the channel and reduce the pressure, and the filtering efficiency is ensured.

The utility model discloses a quick alignment device for a security filter, which relates to the technical field of filter equipment and comprises a barrel, a filter element, a bottom plate, a middle positioning plate and a pressing plate. A plurality of first positioning holes are formed in the bottom plate, and each first positioning hole is used for being connected with a filter element in an inserting manner; the middle positioning plate is arranged in the barrel and can be kept at the position in the barrel, a plurality of second positioning holes are formed in the middle positioning plate, and each second positioning hole is used for allowing a filter element to penetrate through; the pressing plate is provided with a plurality of third positioning holes, and each third positioning hole is used for being connected with the top end of a filter element in an inserted mode.