10results about How to "Reduce security threats" patented technology

The utility model discloses a hammerhead fixing device for an automobile steering knuckle drop hammer test, which relates to the technical field of automobile steering knuckle tests and comprises a base, the top of the base is connected with a top plate through a sliding rod and a support, and a first sliding plate and a second sliding plate are respectively slidably mounted on the sliding rod. A rotating shaft is rotatably mounted between mounting frames fixedly mounted on the front side and the rear side of the first sliding plate, worms are arranged at the two ends of the rotating shaft and are in meshed connection with worm wheels, the worm wheels are fixed to the top of a rotating rod, the rotating rod is rotatably mounted on the first sliding plate, a limiting plate is fixedly mounted at the bottom of the rotating rod, and an electromagnet is mounted at the bottom of the first sliding plate; a mechanical structure composed of the rotating shaft, the worm, the worm gear, the rotating rod, the limiting plate and the like is used for auxiliary fixing. Even if the electromagnet loses magnetic force due to power failure or power system failure, the limiting plate can still limit accidental falling of the impact head from the mechanical level, the double-guarantee effect is achieved, and the risk of accidental falling of the impact head is greatly reduced.

The utility model relates to a high-pressure environment-friendly gas cabinet with a pressure relief knapsack structure, which comprises the pressure relief knapsack structure and a gas cabinet, and the pressure relief knapsack structure is fixed on one side of the gas cabinet far away from an instrument box on the gas cabinet; an upper pile head, a lower pile head, a sensor, a mutual inductor and the like are arranged in the gas cabinet; a partition plate is arranged between the upper pile head and the pressure relief backpack structure; a flow guide buffer area is arranged between the pressure relief opening and the upper pile head, and a pressure relief path is arranged between the pressure relief opening and the lower pile head. The pressure relief knapsack is additionally arranged at the rear part of the cabinet body, the rear part of the upper pile head is separated by the aluminized zinc plate partition plate, and the pressure relief mode directly avoids the upper pile head. The rear pressure relief design is adopted, and the upper pile head is separated. A flow guide channel is additionally arranged between the pressure relief opening and the upper pile head, and airflow is guided to be released to an equipment-free area. Metal protective baffles are additionally arranged on the bus and the cable terminal on the pressure relief path; through the targeted design, the pressure relief function can be achieved, and meanwhile the safety threat to the upper pile head and peripheral equipment is reduced.

The application discloses a safety device for building composite foundation pile soil sampling operation and relates to the technical field of building construction. The safety device comprises a protection box body placed in a detection hole formed on a foundation and a support frame located above the foundation. A protection door is hinged to one side of the protection box body. A lifting ring is arranged above the protection box body. An electric hoist is arranged at a position close to the protection box body of the support frame. The electric hoist is provided with a lifting rope connected with the lifting ring. Workers enter the protection box body, and the electric hoist installed on the support frame lowers the protection box body into the detection hole formed on the foundation to protect the workers. A protection door is hingedly arranged on one side of the protection box body. After the workers enter the protection box body, the protection door is closed to prevent soil from entering the protection box body when the protection box body encounters hole collapse in the detection hole of the foundation. The protection box body reduces the safety threat caused by hole collapse of the detection hole and upper soil falling to the workers.

The application discloses a brine circulating filtering device for brine chicken processing, which belongs to the technical field of brine filtering and comprises a base frame, a transmission frame fixedly connected to the top end of the base frame and a rotating plate rotatably connected to the inner side of the transmission frame. The brine circulating filtering device comprises a rotating filtering assembly, a plurality of filtering frames vertically and equidistantly distributed inside the second brine barrel and a connecting frame fixedly connected to the filtering frames. The filtering frames are driven by the overturning mechanism to synchronously realize the double actions of "horizontal rotation + vertical movement" in the brine. The contact position of the filter screen and the brine is continuously changed during the rotation process, so that the impurities are prevented from being accumulated in the local position to form "filter cake". The initial position of the filtering frames is arranged at the bottom of the second brine barrel, the filtering frames are gradually lifted along with the injection of the brine, most of the structures are always immersed in the brine, the brine is horizontally and stably filtered through the filter screen and the impact and splashing phenomena during the traditional pouring filtering are avoided.

This application provides a TSN system for nuclear power environments. The TSN system includes a TSN switch, on which an environmental monitoring module, a security authentication module, and a scheduling module are deployed. The environmental monitoring module is configured to: monitor the radiation level of the communication environment and send the radiation level data to the security authentication module and the scheduling module; the security authentication module is configured to: perform a security check on the received information; if the security check passes, obtain the security level of the information based on the security level of the terminal device sending the information; select a corresponding encryption algorithm to decrypt the information based on the radiation level to obtain the encapsulated service instructions; the scheduling module is configured to: perform deep packet inspection on the service instructions to obtain the service type matching the service instructions; allocate the service priority of the information corresponding to the service instructions based on the timeliness level of the service type; and map the information to the output queue based on the radiation level, the service priority of the information, and the security level.

The application discloses a tunnel surface subsidence based step-by-step construction device and construction method. The application belongs to the technical field of tunnel construction. The device comprises a plurality of top support molds, a plurality of insertion point type insertion units are arranged between two adjacent top support molds, each top support mold and each insertion point type insertion unit are installed on an assembly beam, a driving type transmission mechanism for driving the top support mold to move along the length direction of the assembly beam is installed on the assembly beam, and a plurality of vertical hydraulic cylinders are installed on the lower end of the assembly beam along the length direction of the assembly beam. The method is to apply the above device to step-by-step reinforcement of the tunnel. The core design of active support, multi-point reinforcement and step-by-step advancement is adopted in the application, so that the whole process of surface subsidence in tunnel construction is realized, and fine control is achieved. The application has stability, high efficiency, safety and economy, and is especially suitable for tunnel construction under complex geological conditions such as karst, and can effectively guarantee the engineering quality and the safety of the surrounding environment.

The utility model discloses an aluminum alloy outdoor folding table with a reinforcing structure, which belongs to the technical field of folding tables and comprises a table body I and a table body II, half gears are fixedly mounted on sides, close to each other, of the table body I and the table body II, the two groups of half gears are meshed with each other, two groups of connecting rods are hinged between the two groups of half gears, and the two groups of connecting rods are meshed with each other. The two sets of connecting rods are located on the two sides of the two sets of half gears respectively, and positioning blocks are fixedly installed at the bottoms of the first table body and the second table body, so that folding of the supporting legs is facilitated, the size of the folding table is greatly reduced, a user can conveniently store and arrange the folding table, the space utilization rate is increased, the folding table is convenient to carry for travel, and the portability of the folding table is enhanced. According to the folding table, the stability of the folding table in the non-use state is guaranteed, the table can be rapidly converted from the use state to the folding state convenient to carry and store, and the fixing mode can effectively prevent the table body from being accidentally unfolded due to external force factors such as bumping and collision in the carrying or storing process.

The utility model belongs to the technical field of glass fiber reinforced plastic test equipment, and discloses compression test equipment for glass fiber reinforced plastic production, which comprises a support part, a support plate for supporting glass fiber reinforced plastic and an extrusion part for extruding the glass fiber reinforced plastic are mounted on the support part, the extrusion part is positioned above the support plate, and the top of the support plate is fixedly connected with a blocking cover. The top of the blocking cover is open to form a containing cavity for containing the glass fiber reinforced plastic, the extrusion part comprises a hydraulic cylinder, the telescopic end of the hydraulic cylinder is connected with a moving rod, and the circumferential face of the moving rod is fixedly connected with a baffle, so that after a person places the glass fiber reinforced plastic needing to be tested in the blocking cover, the hydraulic cylinder drives the moving rod to move, and the moving rod extrudes glass fiber reinforced plastic fragments in the blocking cover; when glass fiber reinforced plastics are broken, the upper portion of the blocking cover is blocked through the baffle, and therefore the glass fiber reinforced plastics are retained in the containing cavity in the blocking cover and prevented from splashing all around, the safety threat to an operator is reduced, and the safety guarantee of the operator is improved.

The application discloses a kind of automatic water removal systems of propellant, including workbench and cartridge, the workbench is provided with for realizing vacuum pumping extraction component, for realizing the closed cartridge of cartridge and for realizing the transfer component of cartridge movement to extraction component, the extraction component is set on moving assembly, the cartridge is located above extraction component;The cartridge is set as the tubular structure of upper and lower through, and cartridge bottom support is equipped below cartridge for preventing propellant leakage.The water-containing propellant is loaded into cartridge, and the cartridge is moved to the extraction component by the action of transfer component, then the vacuum environment in cartridge is realized under the action of pressing assembly, and finally the water in cartridge is pumped out by the work of extraction component, so as to realize the full-automatic water removal of propellant, reduce the security threat received by worker.

The utility model provides a floating type normal-pressure hydrogen storage photovoltaic power generation system, and the system comprises a normal-pressure hydrogen bag which is disposed on an idle water surface below or beside a photovoltaic cell panel. The hydrogen production machine is communicated with the normal-pressure hydrogen bag and the hydrogen fuel power generation device through a hydrogen pipeline, and photovoltaic electric energy is gathered and concentrated through a photovoltaic wire, so that the electric energy is converted into hydrogen for normal-pressure storage. According to the invention, the continuity and stability of power supply can be ensured, and a new low-cost technical path can be provided for replacing thermal power by photovoltaic power generation.