67results about How to "Guaranteed safety protection" patented technology

A computer system comprises hardware, BIOS and virtualizer monitor with at least one servo operation unit and at least one user operation unit both being operated on virtualizer monitor. It is featured as setting a safety consolidation agent module on servo operation unit and setting a safety consolidation module on user operation unit.

The invention relates to a self-service printing terminal with a sealing function. The terminal comprises a cabinet, a display, an industrial personal computer, a printer, a printer expansion paper box, a paper feeding plate, a password keyboard and a card reader. The display is embedded on the panel of the cabinet. A returned bill and note outlet and a card inlet are arranged on the cabinet. Theterminal further comprises an automatic rolling and printing dual-seal sealing device and a sealing device electric control door. The automatic rolling and printing dual-seal sealing device compriseslateral support plates, a support bracket, an auxiliary fixed shaft, a rolling paper-feeding main shaft, a printing oil wheel, a rolling seal main shaft and two rolling seal shafts. The support bracket, the auxiliary fixed shaft, the rolling paper-feeding main shaft, the printing oil wheel, the rolling seal main shaft and the two rolling seal shafts are arranged among the lateral support plates. A paper feeding channel comprises an upper guide plate and a lower guide plate. A driving motor is arranged outside the lateral support plates. A one-way gear is arranged on the shaft of the driving motor. A micro-clutch and a clutch gear are respectively arranged at two ends of the rolling seal shaft. A rolling seal is arranged on the rolling seal shaft. The terminal disclosed by the invention has good safety and strong adaptability. The self-service printing and sealing of multi-standard paper can be realized.

The invention discloses a multifunctional movable protective underframe for steel beam cantilever erection. The multifunctional movable protective underframe comprises a steel pipe protective frame body provided with a sliding beam, the steel pipe protective frame body is connected with a steel truss girder lower chord member through a front suspension centre, and the steel pipe protective frame body is connected with a maintaining roadway longitudinal beam through a rear suspension centre. The multifunctional movable protective underframe is a safe and efficient construction safety protective device. The multifunctional movable protective underframe not only can provide a larger safety protective area and an operation platform, but also can move forward along with continuous forward erection of steel beams. The multifunctional movable protective underframe overcomes the defects that a safety protective net is hung on steel truss girder chord members normally when the steel beams are erected and installed, steel pipe frames are put up to expand the protective area and the operation platform, and the steel pipe frames need putting up and the safety net needs hanging every time the steel beams are erected and move forwards.

The invention provides a load balancing service management method and system, and the method comprises the steps: enabling a drive device to obtain the initial configuration information of load balancing and the information of a current lessee, and enabling an SMC to obtain an initial safety protection strategy of the current lessee; responding to the drive device, transmitting the initial configuration information and the information of the current lessee to the SMC, enabling the SMC to transmit the initial configuration information to a current load balancing module, and storing the corresponding relation among the current lessee, the initial safety protection strategy, the initial configuration information and a current balancing processing device, wherein the current balancing processing device is a load balancing module in a current load balancing processing device corresponding to the current lessee. According to the embodiment of the invention, the method can carry out the unified management of the load balancing services of the lessees in a cloud platform, and guarantees the safety access of the lessees to the cloud platform.

A house renting management system comprises a daily-rent house data bank, a communication interface, a central processing unit, a security-linking module, and a permission management module, wherein the daily-rent house data bank is used to store house information, the communication interface is coupled to the daily-rent house data bank to obtain the house information, the communication interface transmits a reservation signal, the central processing unit is coupled to the daily-rent house data bank and the communication interface to reserve a daily-rent house according to the reservation signal, the security-linking module is coupled to the central processing unit for security personnel to monitor daily-rent house safety through the central processing unit, and the permission management module is coupled to the central processing unit to generate corresponding usage permission based on the daily-rent house reserved by the central processing unit.

The invention discloses a two-position five-way electromagnetic reversing valve applied to electro-hydraulic steering systems. The two-position five-way electromagnetic reversing valve comprises a valve sleeve, a valve element, a valve seat and an electromagnet, wherein one end of the valve seat is fixedly connected with the electromagnet in a thread fit manner; the other end of the valve seat is fixedly connected to the valve sleeve in a thread fit manner; the valve element consists of a valve element small-diameter section and a valve element large-diameter section; one end of the valve element small-diameter section is fixedly connected to a spring seat; the valve element is assembled in the valve sleeve; a spring cavity is formed in a thread end, connected to the valve seat, of the valve sleeve; the valve element small-diameter section is assembled in the spring cavity of the valve sleeve; a flat washer is also arranged in the spring cavity of the valve sleeve; a returning spring is arranged between the spring seat and the flat washer; a pushing rod is arranged in the electromagnet; one end of the pushing rod is in contact with the valve element; an oil opening A, an oil opening P, an oil opening P1 and an oil opening B are successively formed in the valve sleeve along an axial direction; a reversing valve T opening is formed in the valve element large-diameter section. The two-position five-way electromagnetic reversing valve is small in occupied mounting space; the requirements on safety and compactness of vehicle-mounted systems can be met.

The invention provides a workside temporary pipeline comprehensive distribution system of a deep foundation pit and a construction method of the system. The construction method comprises the followingsteps: pouring slope protection pile crown beam and an annular hardening pavement, mounting placement overhanging angle steel, mounting inner side and outer side tool guardrails, constructing a workside water retention and drainage system of the foundation pit, observing foundation pit data, mounting an assembled retention wall, mounting channel steel brackets, mounting a downcast pipeline bridgeframe, mounting a feed-water pipeline bridge frame, mounting a cable bridge frame, mounting downcast pipelines, a production water pipeline and a fire-fighting main pipeline, mounting a spray branchpipe, mounting a wiring slot case, distributing cables, mounting a bracket encapsulated slot rain-proof top cover, mounting a downpipe of the rain-proof top cover, mounting a fire-fighting case, and dismounting a temporary pipeline. The workside temporary pipeline comprehensive distribution system of the deep foundation pit can effectively ensure safety protection of workside construction of the deep foundation pit; the difficulty that the traditional buried lay cannot be adopted for the temporary construction pipeline due to a narrow field is solved; and the reliability of the safety protection is improved due to the deeper foundation pit.

The invention provides a computer system safety protection method and device. The method includes the steps that all operation objects related to visit are abstracted to nodes in data space, and all the nodes are provided with coordinate values in the data space; the visit tracks corresponding to all the nodes are determined according to the coordinate values of all the nodes in the data space; a visit request of the first node is received, whether the visit is allowed or not is judged according to the corresponding visit track of the first node, and if yes, the visit is allowed; the safety protection of a computer system is achieved according to the scheme.

The invention provides a tank vehicle, which comprises a frame, a gas leakage alarm device, a rear-end warning device, an anti-accident opening device of an operation box, a vehicle false start interlocking device and a safety interlock control panel. The gas leakage alarm device, the rear-end warning device, the anti-accident opening device of the operation box and the vehicle false start interlocking device are all connected with the safety interlock control panel by electric signals. According to the detection signals of the gas leakage alarm device, the rear-end warning alarm device, the anti-accident opening device of the operation box and the vehicle false start interlocking device, the safety interlock control panel controls the startup and shutdown of the engine, the emergency shut-off valve and the pump body of the vehicle. The tank vehicle can maintain safety protection during transportation, loading and unloading and normal driving, thereby enhancing the transportation safety of the tank vehicles.

A protective isolation device for oral cavity diagnosis and treatment comprises a flexible protective isolation sleeve and a hard transparent mask, and is characterized in that the flexible protectiveisolation sleeve is formed by integrally connecting a head sleeve capable of sleeving the head of a patient and an isolation pullover capable of sleeving the upper body of the patient; the hard transparent mask is of a convex structure; the hard transparent mask is in sealed connection with the flexible protective isolation sleeve; the protective isolation device for oral cavity diagnosis and treatment is provided with a left operation opening, a right operation opening, an upper operation opening, a negative pressure connecting pipe opening, a saliva suction pipe inserting opening and two air guide openings. According to the protective isolation device for oral diagnosis and treatment, the head and the upper body of a patient can be placed in the protective isolation device; the oral cavity part of a patient can be clearly observed through the hard transparent mask, medical staff can conduct oral cavity diagnosis and treatment on the patient through the operation opening in the flexible protection isolation sleeve, extra safety protection can be effectively provided for the oral cavity medical staff in the oral cavity diagnosis and treatment process, and the infection risk of a hospital is greatly reduced.

The invention relates to a computer system (3) comprising a boot loader (7) for use of an especially medical device (1) using at least one loadable software (11), the boot loader (7) comprising at least one nonreadable decryption algorithm (14) for the software (11). The boot loader (7) furthermore comprises at least one non-readable decoding key (15), or else the computer system (3) comprises at least one further storage medium (23) which is different from the boot loader (7) and on which at least one copy-proof decoding key (27) is stored. The invention further relates to a computer system (3) comprising a controller chip (29) for operating an especially medical device (1) by using at least one software (11), especially an application program, the software (11) being stored in the controller chip (29) in a nonreadable manner. It also relates to corresponding methods.

The invention relates to an equipment matching method for a fully mechanized mining working surface with large mining height. For the once full mining height fully mechanized mining working surface with large mining height, as the height of an upper and a lower drift section is lower than the mining height of the working surface and the height difference reaches 1-3m, the triangular coal loss on top of transitions sections at upper and lower ends of the working surface and the aggravated unbalance loading of a support are caused during transition from hydraulic supports at two ends of the lower and upper tunnels gradually to the middle of the working surface with normal mining height through a transition hydraulic support by the equipment matching method of the normal working surface. In the invention, transition goes from the hydraulic supports at two ends of the lower and upper tunnels directly to the middle of the working surface with normal mining height through a special end hydraulic support by great gradient. The transition method by great gradient obviously reduces the triangular coal loss on top of transitions sections at upper and lower ends of the working surface, improves the loaded status of the hydraulic supports and boosts the recovery rate of coal. A side guard plate is adopted at the lap joint side of the special end hydraulic support and the end hydraulic support to realize lap joint matching by great gradient.

The invention discloses a double-arm cooperation robot. The double-arm cooperation robot comprises a robot base and two robot arms which are symmetrically distributed, wherein the robot arms comprisemodular double joints and five modular single joints which are sequentially connected in series; the modular double joints comprise L pipe joint bases and two steering engines, wherein the two steering engines are kept vertical, each modular single joint comprises a straight pipe joint base and a steering engine, and the five modular single joints are correspondingly connected with a first singlejoint, a second single joint, a third single joint, a fourth single joint and a fifth single joint which are sequentially connected in series; the first single joint is vertically connected with the second steering engine, the central axes of the first single joint and the third single joint are not parallel to each other and are coplanar, a central shaft of the first steering engine is located outside a distribution plane and is parallel to the distribution plane, and the central axes of the second steering engine, the second single joint and the fourth single joint are parallel to one another. The double-arm cooperation robot has the advantages that the space position and randomicity of postures, the singularity of the working space can be avoided, barriers in the working space can be avoided, the structure is simple, and accurate assembly is easy to realize.

The invention provides a method for judging the state of a front annunciator of a train. The method includes the steps that train control information sent by a zone controller is received; traveling position information of the train is obtained; a first protection distance and a second protection distance are obtained according to protection zone section effectiveness information, the traveling position information and train stopping position information; and the state of the front annunciator of the train is judged according to the first protection distance and the second protection distance.The method and device for judging the state of the front annunciator of the train are provided, the protection zone section effectiveness information and the train stopping position information whichare sent by the zone controller are received, and the first protection distance and the second protection distance are obtained according to the protection zone section effectiveness information, thetraveling position information and the train stopping position information; and the state of the front annunciator of the train is judged according to the first protection distance and the second protection distance, and the purpose that the state of the front annunciator of the train can be accurately and quickly recognized in interconnection and intercommunication is achieved.

The invention discloses a triple pressure safety protection system for thermal compounding loading equipment of an explosive force. The system comprises a mechanical hydraulic switch located on a hostmachine, a measuring sensor located on an oil cylinder of the host machine and a safety sensor located on a hydraulic station, wherein the measuring sensor and the safety sensor operate and control measured data through a PLC. The invention also discloses a triple pressure safety protection method for the thermal compounding loading equipment of the explosive force. The invention provides the triple pressure safety protection system for high risk operations of high energy, fire blast and high pressure, integrates automatic measuring protection, automatic safety protection and manual protection, and ensures the safety protection in a triple manner. When abnormal conditions happen, the system is used for safety protection of human and machine of the thermal compounding loading equipment ofthe explosive force.

The invention relates to an integral type hood protection device which comprises a hood body, a honeycomb-shaped head supporting and fixing device, a water drinking device, an infrared temperature measuring device, a temperature detecting device, an air filtering and circulating device, an antifog face screen, a mask with a replaceable filter element, a communication device and a neck sealing structure. The overall weight of the protective hood is greatly reduced by adopting a honeycomb elastic lightweight design and using a light composite material; internal temperature detection and automatic air supply temperature adjustment can change internal microcirculating of the hood, and it is guaranteed that the interior of the protective hood is fresh, cool and comfortable. The temperature adjusting function and the antifog face screen can ensure that the face screen part is not fogged, and normal work of a user is ensured; repeated use of the protective hood is realized by adopting the replaceable filter element and using an ultraviolet-resistant sterilizing composite material. The communication device is installed, so that conversation with a person after wearing the hood is facilitated. The whole structure adopts a sealing design, and safety protection of personnel in the using process is guaranteed.

The invention provides an office intelligent control system. The office intelligent control system comprises a monitoring system and a control center which are electrically connected, wherein a photographing device, an environmental detection unit and a voice recognition module are connected onto the monitoring system; an access control system, a communication module and an execution unit are connected onto the control center; the access control system comprises an identification module, a counting sensor and an electromagnetic lock which are electrically connected with the control center respectively; the communication module is connected with a mobile client; the mobile client is used for remote system monitoring; the execution unit comprises a water dispenser, a computer, an air conditioning device, a light adjusting device, a window control device and an alarm device which are arranged in an office; the computer is connected with a projector; the window control device is connectedwith a curtain; the monitoring system acquires a signal from the environmental detection unit and sends the signal to the control center; the control center sends a control signal to the execution unit. The office intelligent control system has the advantages of simple structure, high efficiency, scientization and automation.

The invention relates to an erection method of outer protective frames serving as operation platforms for staggered floor balconies of a high-rise building. The method includes the following steps that two rows of reversed holes are formed in each floor surface plate of the balconies; vertical rods at the inner row and vertical rods at the middle row of three rows of outer scaffolds penetrate through corresponding reserved holes to be connected with scaffolds at the lower layer; the vertical rods at the inner row and the vertical rods at the middle row are tightly wedged with the reserved holes by wooden wedges; bottom horizontal rods, horizontal rods and vertical rods at the outer row are erected according to a conventional method; after construction is finished, the three rows of scaffolds are dismantled, and waterproof blockage is conducted on the reserved holes. According to the erection method of the outer protective frames serving as the operation platforms for the staggered floor balconies of the high-rise building, the three rows of scaffolds can be adopted for erection at the staggered floor balconies, safety protection can be effectively ensured, and meanwhile construction of outer walls can also be taken into consideration. By forming the reserved holes in the floor surface plates of the balconies and making the vertical rods of the three rows of scaffolds penetratethrough the reserved holes to be connected with the scaffolds at the lower layer, the arrangement of wall connectors is optimized.

The invention relates to an integrated case of the sentry facilities of armed police, which comprises side walls, a pedestal provided with a universal wheel and a case body formed by panels, also comprises a lifting door with a lock, two front doors with the locks, a keyboard drawer and a decorative board which are arranged behind the case body, a warning button, a sentry-inspection emergency button, an electronic watch, an interphone, and a private network phone which are arranged on the panel, a private integration power which is fixed on the pedestal, a bullet case which is provided with an electromagnetic lock and embedded on the side wall, wherein, the DC 6V output terminal of the private integration power is connected with the electronic watch, the DC 9V output terminal is connected with the interphone, and the DC 12V output terminal is respectively connected with the warning button, the sentry-inspection emergency button and the electromagnetic lock on the bullet case. The case of the invention has the advantages that: the appearance has no welding seams and is beautiful and elegant, the operation is convenient, system power supply is stable, and lightening-proof function is internally arranged, thus achieving safe protection, overvoltage protection and lightening strike protection.

The invention discloses an auxiliary explosion-proof system for a coal mine air shaft. The auxiliary explosion-proof system is arranged at a shaft opening of an air shaft, and a shaft opening basal body is arranged at the periphery of the shaft opening of the air shaft and is manufactured through pouring with reinforced concrete; a main explosion-proof door is mounted at the upper end of the shaftopening basal body, the shaft opening basal body upwards protrudes the ground and extends from a segment of a shaft wall, and a plurality of auxiliary explosion venting passages are arranged on the shaft wall in a circumferential array manner in a spacing manner, and penetrate through the shaft wall; a metal explosion venting pipeline is inlaid in each auxiliary explosion venting passage, and themetal explosion venting pipelines and the shaft opening basal body are fixed together through cement pouring; a flange is welded to the outside edge of each metal explosion venting pipeline, and an auxiliary explosion-proof door is mounted on each flange; the auxiliary explosion venting passages can realize pressure relief in advance and process pressure relief of explosion shock waves, and substantially reduce the shock and damage effects of the explosion shock waves on the main explosion-proof door at the shaft opening; and door panels and support frameworks of the auxiliary explosion-proofdoor are designed in a separated manner, so that the auxiliary explosion-proof doors are good in explosion venting effects, have adaptability to explosion shock and are difficult to damage.

The invention discloses a double-opened multifunctional protective window. The double-opened multifunctional protective window comprises an outer frame body. The outer side of the outer frame body isfixed on a wall. The inner side of the outer frame body is fixedly provided with an inner frame body. The inner side of the inner frame body is provided with an outer fan frame body. One side of the outer fan frame body is hinged to the inner frame body through a hinge, so that the outer fan frame body can be rotationally opened along the hinge relative to the inner frame body, and the other sideof the outer fan frame body is connected with the inner frame body in a locked and buckled mode through a handle lock. An inner fan frame body is movably arranged in the outer fan frame body. The inner fan frame body is internally and fixedly provided with glass. The upper end of the inner fan frame body is movably connected with an outer fan upper frame through bolts. The two lower ends of the inner fan frame body are movably connected with an outer fan lower frame through bolts, so that the inner fan frame body can be rotationally opened along the bolts relative to the outer fan frame body.The double-opened multifunctional protective window is convenient to use, the outer fan frame body and the inner fan frame body can be independently opened or closed, safety protection is ensured, andmeanwhile, the double safety protection window can be opened for emergency in the case of emergencies.

The invention relates to a soundproof room of a rotating hub and a use method thereof. The soundproof room is provided with an open door. A soundproof room body is provided with suction openings and is above the ground level. A pit is below the ground level. Rotating hubs, whole vehicle detection devices, are installed in the soundproof room body and the pit. The vehicles to be detected directly enter the soundproof room body from the open door and directly exit from the open door after detection. The soundproof room not only ensures safe protection, satisfies the production requirement and achieves the soundproof and noiseproof effects, but also lowers the costs of investment and maintenance.

The invention discloses a wall-mounted face recognition device based on multi-directional angle adjustment of an artificial intelligence system. The device comprises a fixed seat plate, a camera and afingerprint identifier; an outer shell is arranged on the outer side of the fixed seat plate; the outer side of the outer shell is connected with a cover plate; a fixed inserting rod is fixed above the outer side surface of the fixed seat plate; a connecting rod is connected to the lower portion of the outer side face of the fixed seat plate, a mounting groove is formed in the back of the outer shell, a small telescopic rod is mounted on the inner side of the mounting groove, a side plate is fixed in the outer shell, a central processing unit with a keyboard is arranged below the camera, anda fingerprint identifier is arranged on the rear side of the central processing unit with the keyboard. The wall-mounted face recognition device based on multi-directional angle adjustment of the artificial intelligence system is convenient to install, can be adjusted, is convenient to guarantee the stability of portrait capture, is convenient to collect temperature and fingerprints, can guaranteethe accuracy, and can detect the state of personnel at the same time.

The invention provides a safety device and method for the coil loading and unloading processes. The device comprises a left side track surface assembly, a right side track surface assembly, a trolley,rear side laying plates and front side laying plates, the left side track surface assembly and the right side track surface assembly are symmetrically arranged relative to the trolley and are arranged on foundation walls on the two sides of the trolley correspondingly, the rear side laying plates and the front side laying plates are arranged on the front side and the rear side of the trolley correspondingly, the multiple layers of rear side laying plates and the multiple layers of front side laying plates are arranged, the rear side laying plate at the lowermost layer and the front side laying plate at the lowermost layer roll on the left side track surface assembly and the right side track surface assembly through rolling wheels correspondingly, the rear side laying plate at the topmostlayer and the front side laying plate at the topmost layer are connected to the upper part of a transverse moving mechanism of the trolley, the rear side laying plate of the upper layer moves on the upper surface of the rear side laying plate of the lower layer close to the rear side laying plate of the upper layer through rolling wheels, and the rolling wheels are arranged on the lower side surfaces of the ends, close to the corresponding front side laying plate of the upper layer and the corresponding rear side laying plate of the upper layer, of the front side laying plate of the middle layer and the rear side laying plate of the middle layer. The device and the method have the advantages of being simple in structure, high in practicability and easy to implement.

The invention relates to the field of building construction, in particular to an external throwing frame protection method. The protection method is characterized by involving a lower floor type steel pipe scaffold (1), an external throwing frame system (2), and an upper external throwing frame protection scaffold (3). The method specifically comprises the steps of 1, erecting the lower floor type scaffold (1); 2, erecting the external throwing frame system; and 3, erecting the upper protection scaffold. By the adoption of the design, protection building of an overhanging structure building is conducted through a scaffold with the three parts; and through the modular design, the operation cost of the scaffold is reduced, the operation efficiency is improved, and meanwhile the purpose of safety protection is guaranteed.

The invention discloses a construction auxiliary platform for landscaping engineering. The construction auxiliary platform comprises a platform base, an elevator support, a hydraulic elevator, a working platform body and an electric appliance kinetic energy device, the upper surface of the platform base is fixedly at the bottom end of the elevator support, the upper end surface of the elevator support is hinged to the bottom surface of the working platform body, the bottom end surface of the hydraulic elevator is connected to the surface of one side of the elevator support in a bolted mode, the top end surface of the hydraulic elevator is connected to the surface of the other side of the elevator support in a bolted mode, one side of the upper surface of the working platform body is weldedand connected to a maintenance working frame, the maintenance work frame is configured to be of a cuboid structure, a through hole is formed in the surface of one side of the maintenance work frame and is movably connected to a tool storage box through a guide rail, a layer of steel plate is reinforced on the other side of the maintenance work frame, the surface of the other side of the upper surface of the working platform body is welded and connected to a safety guardrail frame, and the upper end of the upper surface of the working platform body is connected to the bottom end surface of a protection plate I through a hinge and is connected to the bottom end surface of a protection plate II through a hinge.

The invention relates to an integrated case of the sentry facilities of armed police, which comprises side walls, a pedestal provided with a universal wheel and a case body formed by panels, also comprises a lifting door with a lock, two front doors with the locks, a keyboard drawer and a decorative board which are arranged behind the case body, a warning button, a sentry-inspection emergency button, an electronic watch, an interphone, and a private network phone which are arranged on the panel, a private integration power which is fixed on the pedestal, a bullet case which is provided with an electromagnetic lock and embedded on the side wall, wherein, the DC 6V output terminal of the private integration power is connected with the electronic watch, the DC 9V output terminal is connectedwith the interphone, and the DC 12V output terminal is respectively connected with the warning button, the sentry-inspection emergency button and the electromagnetic lock on the bullet case. The caseof the invention has the advantages that: the appearance has no welding seams and is beautiful and elegant, the operation is convenient, system power supply is stable, and lightening-proof function is internally arranged, thus achieving safe protection, overvoltage protection and lightening strike protection.

The invention relates to a crane jib breakage and falling safety protection device, which comprises a jib. The jib has a chute, inside which a wire rope is arranged. The right end of the wire rope is connected to the jib. Multiple slide blocks which can slide in the chute are arranged on the wire rope. Each slide block is equipped with a gear rack; a gear which is engaged with the gear rack is arranged on the jib; a screw which can coaxially slide with the gear is arranged on the gear; and the screw is in threaded connection with the jib. Torsion springs are arranged on the jib. Two ends of each torsion spring are respectively connected to the jib and the corresponding gear. The jib has multiple support frames which are arranged below the jib. The left end of each support frame is hinged to the jib through a rotating shaft. Multiple demising grooves are arranged at the lower end face of the jib. Front and rear end faces of each demising groove are respectively provided with a vertical chute. Two ends of the rotating shaft are respectively placed inside the vertical chute. The bottom of the demising groove is provided with a counter bore, inside which an extension spring is arranged. The upper end of the extension spring is fixed inside the counter bore, and the lower end of the extension spring is connected to the rotating shaft. There is a safety rope on the support frame, and one end of the safety rope vertically passes through the jib and is extruded on the jib through the rear end of the screw.

The invention discloses a safety management system for a virtual machine and a computer terminal, belonging to the technical field of operation systems. The system comprises a first operation unit and a second operation unit; the first operation unit is connected to the second operation unit; the first operation unit is used for operating the virtual machine; the second operation unit is used for operating a host operation and also used for creating and deleting the virtual machine; the system further comprises a first storage unit and a storage rewriting unit, wherein the first storage unit is a magnetic disk of the virtual machine and stored with system data related to the virtual machine; and the storage rewriting unit is used for filling the storage space of the first storage unit through a preset character before the second operation unit creates the virtual machine or after the second operation unit deletes the virtual machine. The technical scheme provided by the invention has the benefits that: safety protection of the virtual machine in each operation state can be ensured; and privacy data are prevented from being illegally copied or optionally tampered.

The invention relates to a monitoring device, in particular to a power capacitor online monitoring device, which comprises a server, a cloud platform, a mobile terminal and a data acquisition module, and is characterized in that the server is connected with a data calculation module for calculating power grid parameters, and is connected with a comparison judgment module for comparing and judging calculation results; the server is connected with a state output module used for outputting the working state of the power capacitor according to the comparison and judgment result, the server is connected with an action execution module used for carrying out related actions on the power capacitor according to the comparison and judgment result, and the cloud platform is connected with a historical data storage module used for storing historical data; the server is used for classifying the data acquired by the data acquisition module and respectively storing the data into the operation data storage module and the environment data storage module; and according to the technical scheme provided by the invention, the defect that the power capacitor cannot be effectively monitored in the prior art can be effectively overcome.