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43results about How to "Perfect security protection" patented technology

Method and device for protecting data on Un interface

The invention relates to a method and a device for protecting data on a Un interface. The method comprises the following steps of: consulting corresponding integrality protection algorithms and encryption algorithms for signaling data born in a signaling radio bearer (SRB) on the Un interface, signaling data born in data radio bearer (DRBs), and business data born in DRBd; and adopting the consulted integrality protection algorithms and the encryption algorithms to protect the safety of the signaling data born in the SRB, the signaling data born in the DRBs and the business data born in the DRBd. According to the method and a system, provided by the embodiment of the invention, three types of data born by the RB on the Un interface are protected by the corresponding integrality protection algorithms and the encryption algorithms, so that the safety protection of the data on the Un interface is more complete, and the requirements of data born by the different RB on the safety protection can be met.
Owner:NOKIA TECHNOLOGLES OY

Application running device and terminal device

An embodiment of the invention provides an application running device and a terminal device. The application running device comprises a scanning module, a starting operation detection module, a first safety detection module, a starting module, an event detection module and a second safety detection module; the scanning module is used for scanning a specified type of application in the current operation system; the starting operation detection module is used for detecting the starting operation of the specified type of application; the first safety detection module is used for performing the first safety detection on the running environment of the application before the application is started; the starting module is used for starting the application after a result of the first safety detection indicates that the running environment is safe; the event detection module is used for detecting a preset event in the running process of the application; the second safety detection module is used for triggering the second safety detection on the preset event in the application. According to the application running device and the terminal device, the safety of the running environment when the application is started is effectively ensured and the safety of the application in the running process is effectively ensured.
Owner:BEIJING QIHOO TECH CO LTD

Method for reinforcing server based on file access control and progress access control

The invention discloses a method for reinforcing a server based on file access control and progress access control. The method is characterized in that the server is reinforced by a server reinforcing device, so that a system is installed with a safety inner core; the server reinforcing device comprises a double identity identification module, a USB (universal serial bus) peripheral management control module, a registry access control module, a network control module, a progress protection mechanism module, a sensitive data access control module, and a system self protection module. The method has the advantages that the current condition of passive defense of traditional security software is solved, the server has the capability of active defense, and the comprehensive security protection function is provided for the server.
Owner:GUANGDONG QIZHOU INFORMATION SCI & TECHCO LTD

Terminal locking and unlocking method and terminal locking and unlocking system

The invention relates to a terminal locking and unlocking method and a terminal locking and unlocking system. The terminal locking and unlocking method includes locking a protected terminal when preset locking conditions are met, and unlocking the protected terminal when preset unlocking conditions are met. By the terminal locking and unlocking method and the terminal locking and unlocking system, complete safety protection can be provided to terminals, of various types, like mobile terminals.
Owner:SHENGLE INFORMATION TECH SHANGHAI

Terminal environmental security control method and server

The invention provides a terminal environmental security control method. The method comprises the steps of receiving the security parameters of the current operation application environment of a client sent by the client; according to the security parameters of the current operation application environment, determining the operation security level of the client; according to the security level, controlling the security of the service request of the client. The invention also provides a server capable of interacting with the client so as to realize the security control mechanism of the server. In this way, the security control for the external application environment of the client can be realized. The security protection is more comprehensive.
Owner:WEBANK (CHINA)

Computer sound control screen lock and unlock system and method

The invention provides a computer sound control screen lock and unlock system and a method. The computer sound control screen lock and unlock system comprises: a sound acquisition module used for realizing input and acquisition of sound signals; an authorization management module used for carrying out authorization setting on sound cipher, wherein the authorization management module is connected with the sound acquisition module and the authorization management module comprises a sound feature extraction unit and a cipher record unit; a processing module, wherein the processing module is respectively connected with the sound acquisition module and the authorization management module, and comprises a sound detection unit and a sound cipher legality checking unit; and a control module, wherein the control module is connected with the processing module, and comprises a screen lock unit and a screen unlock unit. According to the invention, sound cipher setting is carried out by sound features of the authorized users to control the computer to carry out screen lock and screen unlock, and access operation can be carried out on the computer on the condition that the sound cipher for screen unlock must accord with the sound cipher adopted by the latest screen lock, such that security is improved.
Owner:SHENZHEN POLYTECHNIC

Automobile anti-collision automatic brake device

An automobile anti-collision automatic brake device can effectively prevent the automobile collision accidents when an automobile is out of control during the driving process or a driver has abnormities, such as sudden diseases, drunk driving, trapped driving, etc., the automobile can be automatically braked, and the loss damage degree of the automobile is reduced.
Owner:广州绿口十科技有限责任公司

Automotive safety protection device capable of preventing colliding, falling, pedestrian accidents, rushing to cliff and falling into water

The invention discloses an automotive safety protection device capable of preventing colliding, falling, pedestrian accidents, rushing to a cliff and falling into water. A pair of hydraulic buffer anti-collision devices which is formed by connecting a collision contact panel, a throttle adjustment pull wire, a clutch separation pull wire, a brake pull wire and a hydraulic buffer is arranged on the front of an automotive beam of a head. Transparent rubber airbags which can be separated and combined and have the thickness of 20cm are arranged outside the automobile body. Four extension tubes are arranged on two sides of the underbody and the roof; eight obtuse-angle extension steel pipes are arranged on the bottom edge of the periphery of the automobile body to be connected with the lower edges of the automobile body airbags by using wire cables; and the tail airbags are connected with the tail through wire cables. A front extension type anti-accident protection net is arranged on the underbody; a millimeter wave radar detector is used on the automobile and is in interaction and manual connection with the alarm, throttle adjustment, clutch separation, point brake, the protection net and a control switch of the automobile body airbags for the automobile. When collision, turnover, pedestrian accidents, cliff rush or water crash occurs, the aim of preventing colliding, falling, pedestrian accidents, rushing to the cliff and falling into water is fulfilled. The automotive safety protection device also has the functions of protecting a body LED display screen, saving energy and resisting ageing, and the like.
Owner:熊宗愧

Network security system based on big data and method thereof

InactiveCN108833425AContinuous SecurityAutomatically adjust security policiesTransmissionEncryptionNetwork packet
The invention discloses a network security system based on big data in the field of network security technology and a method thereof. The system comprises a data packet interception processing module,a wireless communication module, an information processing module, an information generating module, a master control module, an online state monitoring module, a firewall configuring module, a process monitoring module, a dynamic analyzing module, a host log monitoring module, an identity identification module and a system encryption module. According to the system and the method, by means of adata packet interception function which is supplied through connecting the network with the monitoring module, technology such as invasion detection, security auditing and virus detection based on a host computer can be integrated on the terminal. In a security control center, after connecting information of all controlled terminals is integrated, invasion detection and security auditing based onthe network can be applied, thereby supplying comprehensive, integral and continuous security protection to the terminal.
Owner:JIUJIANG VOCATIONAL & TECHN COLLEGE

Anti-explosion LED module

The invention discloses an anti-explosion LED module. The light source of the anti-explosion LED module is an LED lamp belt, the LED lamp belt belongs to solid-state cold light sources, and therefore the anti-explosion LED module has the advantages of being high in electro-optic conversion efficiency, small in heat emission amount, small in power consumption, capable of operating at a safe low voltage, long in service life and the like. A traditional incandescent lamp, a fluorescent lamp and other light sources are replaced by the LED lamp belt, so that the anti-explosion performance of an anti-explosion lamp can be improved, and the anti-explosion lamp better meets the national explosion-proof criteria and can be adapted to worse working conditions. Besides, a light source chamber and a cable chamber formed between a lamp shade and the LED lamp belt are filled with transparent organic silica gel, and the transparent organic silica gel can be used for matching and fixation and isolates connection portions between LED particles and the LED lamp belt and connection portion between a cable assembly and the LED lamp belt from the external environment; and in this way, the shock resistance and the seal performance of the anti-explosion LED module are improved, and the safety protection of the anti-explosion LED module is further improved.
Owner:CZ EXPLOSION PROOF ELECTRIC APPLIANCES

Heat radiating building safety helmet

The invention relates to a heat radiating building safety helmet. The heat radiating building safety helmet comprises an outer housing made of a hard material and an inner housing made of an elastic expansion material. A protection cavity in a flat long strip shape is fixed and abutted close to the inner side surface of the outer housing. The protection cavity is internally provided with a piston block which can slide along the inner wall of the protection cavity. The inner side surface of the inner housing is fixed and abutted with a heat radiation cavity in a bowl shape. The heat radiation cavity is communicated with two ends of the protection cavity through two liquid guiding pipes. The heat radiation cavity and the protection cavity are filled with cooling liquid. The lower edge of the inner housing is symmetrically provided with two semicircular adaptive hoops. Each adaptive hoop is fixed by a pressure spring which is installed on the inner side surface of the outer housing. The axis of each pressure spring extends along the radial direction of the outer housing. The safety helmet is novel in structure and relatively light in texture, and fits scalp, and has good heat radiation effect while having security guarantee.
Owner:柳州市康安劳保物资有限公司

Cableway hydraulic driving system with pressure adjusted by energy accumulator

The invention discloses a cableway hydraulic driving system with speed adjusted by an energy accumulator. The cableway hydraulic driving system consists of an electric machine, a variable-capacity oil pump, a motor and a hydraulic driving system, wherein the electric machine is connected with the variable-capacity oil pump; high-pressure oil ports A and B of the variable-capacity oil pump are connected with oil ports A and B of the motor; a hydraulic speed adjusting system comprises the variable-capacity oil pump; a filling pump opening PS in the variable-capacity oil pump is connected with a filter; the filter is connected with a throttling orifice of a pressure limiting valve bank; the throttling orifice of the pressure limiting valve bank communicates with the pressure limiting valve bank and a port P of a solenoid directional valve respectively; an oil return port of the pressure limiting valve bank, a port T of the solenoid directional valve and a pilot control port X2 of the variable-capacity oil pump are connected with an oil tank T; a port B of the solenoid directional valve is connected with the energy accumulator and a pilot control port X1 of the variable-capacity oil pump respectively through throttling orifices of the solenoid directional valve; and an oil inlet T1 and an oil outlet T2 of the variable-capacity oil pump communicate with the oil tank T. The cableway hydraulic driving system has the beneficial effects that the system is simple to control and is stable and reliable; the number of control valve banks and matched electrical control are reduced, costs are saved, and fault rate is reduced; and safety protection is complete.
Owner:XIANGTAN HENGXIN IND

Vehicle control method, device, system, terminal equipment and medium

The invention discloses a vehicle control method, a device, a system, terminal equipment and a medium, and the method comprises the steps: obtaining at least two vehicle sensor signals when a vehicle is detected to be overlapped with an obstacle on a vehicle driving route; judging whether the at least two vehicle sensor signals meet a preset airbag explosion condition; and if yes, generating an explosion signal, performing explosion work according to the explosion signal, and controlling the vehicle to be braked emergently. By the adoption of the method and device, the technical problem that in the prior art, safe operation of the vehicle cannot be effectively controlled, and then effective safety protection cannot be conducted on passengers in the vehicle can be solved.
Owner:DONGFENG MOTOR GRP

Anti-explosion LED light source module

The invention discloses an anti-explosion LED light source module. Due to the fact that an LED lamp band is adopted as a light source of the anti-explosion LED light source module, the back face of the LED lamp band is attached to a metal lamp body manufactured through an extrusion or die pressing technology, the outer portion of the LED lamp band is provided with a transparent lampshade, and the LED lamp band is sealed in the part between the lampshade and the lamp body by casting a compound, the structural strength, the protection performance, the heat dissipating effect and the machining cost of the anti-explosion LED light source module are perfectly balanced, and the anti-explosion LED light source module can be safely used in a potential explosive environment mentioned in IEC / EN 60079-0. In addition, due to the fact that a light source cavity formed between the lampshade and the LED lamp band is filled with transparent organic silica gel, the anti-explosion LED light source module can be fixed and LED particles can be isolated from the outside, the anti-vibration capability and the sealing performance of the LED light source module are improved, and the LED light source module can have a more perfect safety protection function.
Owner:CZ EXPLOSION PROOF ELECTRIC APPLIANCES

Flyback type power supply control system

The invention discloses a flyback type power supply control system. The flyback type power supply control system comprises a transformer, a power tube, a diode, a first resistor, a second resistor, a third resistor and a power supply controller, wherein one end of a primary winding of the transformer is connected with an input system voltage, the other end of the primary winding is connected with a drain end of the power tube, a source end of the power tube is connected with the ground through the first resistor, one end of an auxiliary winding of the transformer is connected with the ground, the other end of the auxiliary winding sequentially passes through the diode, the third resistor and the second resistor and is connected with the source end of the power tube, the power supply controller is provided with a sampling end and a control end, the sampling end is connected between the third resistor and the second resistor, the control end is connected with a gate end of the power tube, and the power supply controller is used for driving the power tube to be periodically switched on, acquiring a detection voltage during switch-on and switch-off periods of the power tube, judging whether the working condition is an abnormal sate or not according to the detection voltage and driving the power tube to be switched off when the working condition is judged to be an abnormal state. By the mode, more safety protection can be achieved by using a few pins.
Owner:成都启臣微电子股份有限公司

Intelligent motor protection device

The invention discloses an intelligent motor protection device, which comprises a base, a control panel and a protection module, wherein the control panel is arranged on the left side of the top of the base, the top of the surface of the control panel is provided with a power switch, a circuit breaker is arranged below the power switch, the right side of the circuit breaker is provided with a leakage protector, an alternating current contactor is arranged below the circuit breaker, the protection module is arranged on the right side of the control panel, the left side inside the protection module is provided with a control chip, the right side of the control chip is provided with an undervoltage protector, a current transformer is arranged below the control chip, and the right side of the protection module is provided with a motor. According to the intelligent motor protection device, the protection module is internally provided with the control chip so as to realize the intelligent control of motor circuit protection, and the control chip is provided with various circuit protection modules, so that the circuit protection is more perfect and safer, the intelligent protection for motors with various different abnormal circuits is effectively realized, the circuit detection precision is high, the circuit protection implementing error is small, the performance is reliable, the service life is longer, and the power consumption is lower.
Owner:重庆全营紧固件有限公司

Protective energy-saving high-pressure boiler

The invention provides a protective energy-saving high-pressure boiler comprising a boiler body and a boiler lid matched with the boiler body, wherein the boiler lid is also provided with a housing; the housing is composed of a shell and an inner sleeve sleeved with the shell and is internally provided with a sealed cavity; the housing is provided with a valve position hole for avoiding a pressure-limiting valve; and a steam discharging clearance is arranged between the valve position hole and the peripheral side of a valve bonnet. The inner side of the housing is provided with a diversion trench for discharging oil and water. Thermal insulation materials can be filled in the cavity of the housing. The boiler body is provided with a thermal insulation cylinder made of foamed plastic material, and the lower part of the boiler body is provided with a thermal insulation sleeve gasket sleeved on the bottom of the high-pressure boiler and made of the foamed plastic material. The high-pressure boiler provided by the invention overcomes defects easily existed in the traditional thermal insulation technology, has more ideal protection, energy-saving and thermal insulation effects and is beneficial to energy conservation and emission reduction so as to have popularization and application values.
Owner:戴梦云

Large shipyard safety education training device and method based on VR technology

The invention discloses a large shipyard safety education training device based on VR technology, which comprises a bottom plate, a shell, a supporting device, a protection device and a simulation device, and is characterized in that the supporting device comprises a first spring fixedly connected to the top end of the bottom plate, the top end of the first spring is fixedly connected with a supporting plate, the top end of the supporting plate is fixedly connected with the shell, a radiator is installed at the top end of the shell and connected with an exhaust fan through a pipeline, the protection device comprises a supporting frame fixedly connected to the bottom end in the shell, an installation base is fixedly connected into the supporting frame, one end of the installation base is provided with one end of a three-degree-of-freedom air cylinder, and the output end of the three-degree-of-freedom air cylinder is rotationally connected with a connecting base through a rotating shaft.The safety education training device is reasonable in structure, damage to an experiencer due to large shaking vibration can be avoided, safety education training can be conducted more comprehensively, and real feelings can be conveniently provided through a loudspeaker box and a loudspeaker, so that most employees are educated to achieve the purposes of enhancing the safety risk awareness and improving the protection skill.
Owner:SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD

A system for running applications

An embodiment of the invention provides an application running system. The application running system comprises a driving assembly and a process assembly; the process assembly is used for scanning a specified type of application in the current operation system; the driving assembly and or the process assembly are or is used for detecting the starting operation of the specified type of application; the driving assembly and the process assembly are used for performing the first safety detection on the running environment of the application before the application is started; the driving assembly is used for starting the application after a result of the first safety detection indicates that the running environment is safe; the driving assembly is used for detecting a preset event in the running process of the application; the driving assembly and the process assembly are used for triggering the second safety detection on the preset event in the application. According to the application running system, the comprehensive safety protection is provided for the application and the safe starting and running of the application can be achieved.
Owner:BEIJING QIHOO TECH CO LTD

IP security tunnel establishment method, device and network equipment

The embodiment of the invention provides an internet protocol (IP) security tunnel establishing method and an IP security tunnel establishing device. The method comprises the following steps of: according to TRACE information required to encrypt flux, determining at least one link required to encrypt flux and equipment along the link; for each link indicated in the TRACE information, trying to establish IP security tunnels with the equipment along the link in a hop-by-hop way from the remote one to the near one; and when the trying of establishing one security tunnel with one piece of equipment on each link is successful, stopping trying, and determining that the establishment of the IP security tunnels required to encrypt flux on the link is finished. By the method and the device of the embodiment of the invention, the longest IP security tunnel can be automatically generated, and more network protection is provided.
Owner:HUAWEI TECH CO LTD

Address renewing method based on network key exchange protocol

The present invention relates to network technology. In order to solve the address update problem of IKEv2, an address update method based on the network key exchange protocol is provided, and a private address and a public address of the initial host are bound to the initial host and the responder host. Address list, when the originating host obtains a new private address or public address, it will create a new entry in the address list of the host at the end, and request to update the address list of the responding host, and the responding end will return confirmation update information to complete the address update. It ensures the physical reachability of the update address and prevents "third-party bombing" and "transparent pseudo-NAT attack".
Owner:徐州永威木业有限公司

Protective energy-saving cover of pressure cooker

The invention provides a protective energy-saving cover of a pressure cooker. The protective energy-saving cover comprises a cooker cover 1 composed of a cover handle, a pressure-limiting valve and other safety components. The cooker cover 1 is provided with a casing 2 composed of a shell 3 and a side enclosing sleeve 4. The shell 3 and the side enclosing sleeve 4 are made of plastics. The side enclosing sleeve 4 and the shell 3 are closely matched, and the side enclosing sleeve 4, the shell 3 and the cooker cover 1 are sealed. The shell 3 is provided with a clearance hole 22, a valve position hole 21 and other receding hole grooves. The casing 2 and the cooker cover 1 form a cavity 23. The peripheral edge of the upper end of the valve position hole 21 is not higher than the lower edge of a cap hole 12. A gap exists between the lower end face of the valve position hole 21 and the surface of the cooker cover 1. The side enclosing sleeve 4 is provided with a discharge port 41. An oil water cup 7 is arranged in the outlet position of the discharge port 41. The shell 3 is provided with a cover cap 8. A lining 5 is arranged on the inner side wall of the shell 3. The protective energy-saving cover is adopted to the pressure cooker, and when the protective energy-saving cover is used for cooking, the protective energy-saving cover has the good safety protection function and the energy-saving and heat-preserving effects, is beneficial to energy conservation and emission reduction and has application and popularization value.
Owner:戴梦云

A distributed vehicle electronic system information security protection method

The invention relates to a distributed vehicle-mounted electronic system information security protection method, belonging to the technical field of vehicle-mounted system information security. The method comprises: initializing the system, loading the preset long-term key by the electronic control unit in the system through the secure channel, and loading the preset long-term key by the electronic control unit in the system; performing session key generation and distribution, based on the loaded long-term key and the generated temporary key, the gateway electronic control unit performing derivation and distribution of the session key with each other electronic control unit in a fixed order; the gateway electronic control unit performing derivation and distribution of the session key witheach other electronic control unit; each electronic control unit performing encryption and authentication of data frames after session key distribution is completed. The invention adopts symmetrical encryption algorithm and hash function with low calculation and communication cost in each stage, and distributes more tasks to the gateway with higher calculation performance in the vehicle-mounted system, which can simultaneously satisfy the requirements of the vehicle-mounted system for the safety and real-time of the internal signal transmission, and is easy to be applied and deployed in practice.
Owner:JILIN UNIV

Terminal environment security control method and server

The invention provides a terminal environmental security control method. The method comprises the steps of receiving the security parameters of the current operation application environment of a client sent by the client; according to the security parameters of the current operation application environment, determining the operation security level of the client; according to the security level, controlling the security of the service request of the client. The invention also provides a server capable of interacting with the client so as to realize the security control mechanism of the server. In this way, the security control for the external application environment of the client can be realized. The security protection is more comprehensive.
Owner:WEBANK (CHINA)

Explosion-proof led light source module

The invention discloses an anti-explosion LED light source module. Due to the fact that an LED lamp band is adopted as a light source of the anti-explosion LED light source module, the back face of the LED lamp band is attached to a metal lamp body manufactured through an extrusion or die pressing technology, the outer portion of the LED lamp band is provided with a transparent lampshade, and the LED lamp band is sealed in the part between the lampshade and the lamp body by casting a compound, the structural strength, the protection performance, the heat dissipating effect and the machining cost of the anti-explosion LED light source module are perfectly balanced, and the anti-explosion LED light source module can be safely used in a potential explosive environment mentioned in IEC / EN 60079-0. In addition, due to the fact that a light source cavity formed between the lampshade and the LED lamp band is filled with transparent organic silica gel, the anti-explosion LED light source module can be fixed and LED particles can be isolated from the outside, the anti-vibration capability and the sealing performance of the LED light source module are improved, and the LED light source module can have a more perfect safety protection function.
Owner:CZ EXPLOSION PROOF ELECTRIC APPLIANCES

Semi-closed refrigerating compressor

The invention relates to a semi-closed refrigerating compressor. The semi-closed refrigerating compressor consists of a machine body, an insulation motor and a cooling system, wherein a crankshaft connecting rod piston is arranged in the machine body, a steel valve plate is arranged outside the machine body, one side of the crankshaft connecting rod piston is provided with an oil pump pressure lubricating system, the oil pump pressure lubricating system is provided with an oil return system, the oil pump pressure lubricating system is provided with a deep oil tank, the machine body is also provided with a cylinder body of a six-cylinder W-shaped structure, one side of the insulation motor is provided with a PTC thermistor sensor, the upper end of the machine body is provided with an exhaust temperature sensing probe, a safety pressure relief valve is arranged in the machine body, one section of the machine body is provided with a crankshaft box heater, the cooling system includes a cylinder head cooling fan, a spraying cooling system and an oil cooler assembly, and the w compressor can be operated stably, reliably and high efficiently.
Owner:夏振宇

Protective energy-saving cover of pressure cooker

The invention provides a protective energy-saving cover of a pressure cooker. The protective energy-saving cover comprises a cooker cover 1 composed of a cover handle, a pressure-limiting valve and other safety components. The cooker cover 1 is provided with a casing 2 composed of a shell 3 and a side enclosing sleeve 4. The shell 3 and the side enclosing sleeve 4 are made of plastics. The side enclosing sleeve 4 and the shell 3 are closely matched, and the side enclosing sleeve 4, the shell 3 and the cooker cover 1 are sealed. The shell 3 is provided with a clearance hole 22, a valve position hole 21 and other receding hole grooves. The casing 2 and the cooker cover 1 form a cavity 23. The peripheral edge of the upper end of the valve position hole 21 is not higher than the lower edge of a cap hole 12. The lower end of the valve position hole 21 is provided with a loop groove 31, a rubber ring 32 and an overflow port 33 of the rubber ring 32. The side enclosing sleeve 4 is provided with a discharge port 41 and a flow guide groove 42. An oil water cup 7 is arranged in the outlet position of the discharge port 41. The shell 3 is provided with a cover cap 8. A lining 5 is arranged in the shell 3. The protective energy-saving cover is adopted to the pressure cooker, and when the protective energy-saving cover is used for cooking, the protective energy-saving cover has the good safety protection function and the energy-saving and heat-preserving effects, is beneficial to energy conservation and emission reduction and has application and popularization value.
Owner:戴梦云

Heat dissipation construction hard hat

The invention relates to a heat radiating building safety helmet. The heat radiating building safety helmet comprises an outer housing made of a hard material and an inner housing made of an elastic expansion material. A protection cavity in a flat long strip shape is fixed and abutted close to the inner side surface of the outer housing. The protection cavity is internally provided with a piston block which can slide along the inner wall of the protection cavity. The inner side surface of the inner housing is fixed and abutted with a heat radiation cavity in a bowl shape. The heat radiation cavity is communicated with two ends of the protection cavity through two liquid guiding pipes. The heat radiation cavity and the protection cavity are filled with cooling liquid. The lower edge of the inner housing is symmetrically provided with two semicircular adaptive hoops. Each adaptive hoop is fixed by a pressure spring which is installed on the inner side surface of the outer housing. The axis of each pressure spring extends along the radial direction of the outer housing. The safety helmet is novel in structure and relatively light in texture, and fits scalp, and has good heat radiation effect while having security guarantee.
Owner:柳州市康安劳保物资有限公司
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