18results about How to "Realize double protection" patented technology

The grinding machine with the protection structure comprises a protection shell, a safety lock assembly, a grinding machine body and an infrared temperature sensor, a door frame is arranged on the front end face of the protection shell, the safety lock assembly is arranged on the front end face of a sliding door, and a grinding wheel is arranged on the front end face of the grinding machine body. The infrared temperature sensor is arranged at the end, away from the grinding machine body, of the universal bamboo joint pipe, and the temperature detection system is arranged in an inner cavity of the control panel. According to the grinding machine with the protection structure, the temperature of the surface of a workpiece is detected through the infrared temperature sensor when the grinding machine works, and when the temperature exceeds a set safety range, an arranged temperature monitoring system can automatically stop running of the grinding machine, monitor temperature changes of a grinding part in real time and adjust grinding parameters in time; and the safety lock assembly is used for preventing unauthorized personnel from opening the protective shell of the grinding machine due to misoperation, danger is avoided, and dual protection of personnel and workpieces is achieved.

This invention discloses a wind-solar hybrid power generation device that is easy to switch between, relating to the field of wind-solar hybrid power generation technology. It includes a base, with a sleeve rotatably connected to the upper end of the base. A shell is provided on the outer surface of the base, and the bottom of the base is connected to the shell via a support rod. A photovoltaic panel is fixed to the upper surface of the shell. A fan blade is rotatably connected inside the sleeve, and an angle adjustment component is provided inside the sleeve. A locking component is provided at the lower end of the angle adjustment component, and an adjustment rotation component is provided at the upper end of the shell. This invention uses the angle adjustment component to change the fan blade angle when encountering different wind resistances, the locking component to lock the fan blade when the wind resistance exceeds a threshold to avoid damage, and the adjustment rotation component to achieve sealed protection for the photovoltaic panel.

The utility model discloses a kind of fireproof light power cable of rat and termite prevention, including conductor, the outside of the conductor is equipped with shielding layer, the outside of the shielding layer is equipped with insulating layer, the outside of the insulating layer is equipped with inner protective layer, the outside of the inner protective layer is equipped with physical protection layer, the outside of the physical protection layer is equipped with protective net layer, in the utility model, the power cable, by inner protective layer inner layer elastic memory resistance layer hardens and releases chlorpyrifos when receiving ≥5N bite pressure, outer layer honeycomb metal-ceramic composite layer improves bite resistance strength;Physical protection layer forms barrier with material hardness;Protective net layer can release medicament, and the defense capability of rat and termite bite is improved compared with traditional cable by multilayer protection;And insulating layer uses high-temperature resistant material to guarantee fireproof basis;Inner protective layer outer layer honeycomb metal-ceramic composite layer can form fireproof barrier when meeting fire.These structures cooperate and improve the fire resistance in fire situation compared with traditional cable.

The utility model relates to the technical field of slope reinforcement, and discloses a slope reinforcing device for municipal civil engineering, which comprises a slope body, fences for protection are fixedly mounted on two sides of the slope body, a positioning plate for pressing is fixedly mounted on one side of the slope body, and a limiting frame for reinforcement is fixedly mounted at the bottom of the positioning plate. A storage pipe used for collection is fixedly installed in the slope body, a filter screen plate is fixedly installed on one side of the storage pipe, and a baffle is fixedly installed at the top of the slope body. According to the slope reinforcing device for municipal civil engineering, through cooperative arrangement of the slope body, the positioning plate, the limiting frame and the baffle, soil can be better reinforced when the device is used, gravel on the upslope is prevented from rolling down, the slope reinforcing device is formed by splicing the two sides of the limiting frame, parts are more convenient and faster to mount and dismount, and the practicability of the slope reinforcing device is improved. And the baffle is used for blocking at the bottom of the slope body, and double protection of the device is achieved.

The invention discloses a new energy automobile driving motor protection structure, and relates to the technical field of motors, the new energy automobile driving motor protection structure comprises a rotor, the outer wall of the rotor is provided with a protection shell, the outer side of the protection shell is provided with multiple groups of heat dissipation strips, the outer wall of the protection shell is circumferentially provided with heat dissipation holes, the outer wall of the protection shell is provided with a supporting plate, and the middle position of the supporting plate is provided with an opening. The shaft end of the rotor correspondingly penetrates through the open hole, a protection mechanism is arranged on the side face of the supporting plate and comprises an annular piece arranged on the side edge of the supporting plate, a driving piece is arranged on one side of the annular piece, a deviation piece is arranged on the side wall of the supporting plate, and the protection mechanism not only plays a role in protecting the rotor, but also achieves heat dissipation of the rotor. And the impact energy is absorbed by the auxiliary mechanism, so that the impact force transmitted to the internal core part is reduced, and double protection on the rotor is realized.

The utility model relates to the technical field of baler fences, in particular to an aluminum ingot casting workshop protective fence which comprises a fence and a control cabinet, a fence door is installed on the front end face of the fence, an installation plate is fixedly connected to the outer wall of the fence door, and a limiting switch is installed on the front end face of the installation plate. An automatic switch electrically connected with the limiting switch is installed on the outer wall of the control cabinet, so that the automatic switch and the limiting switch form an automatic safety interlocking device, when an operator opens the safety fence door, the limiting switch can transmit information to the control cabinet, and the control cabinet installed on the automatic packing machine controls the automatic packing machine to stop working. According to the automatic packing machine, the safety protection function is achieved, safety accidents caused when people enter and exit are prevented, the steel belt can be normally replaced, faults can be maintained and handled, the personal safety of operators is guaranteed, the folding door is installed outside the fence and unfolded, and therefore safety protection on the people and double protection on the automatic packing machine can be further achieved.

The utility model discloses an intelligent guardrail for bridge construction, and relates to the technical field of bridge construction, the intelligent guardrail for bridge construction is provided with a first stand column, a second stand column, a third stand column, a first telescopic cylinder, a second telescopic cylinder and rollers, the rollers can drive the whole guardrail to move, carrying is convenient, meanwhile, the third stand column is pulled outwards, and the third stand column is pulled outwards. The first telescopic cylinder and the second telescopic cylinder can move on the inner sides of the first fixing cylinder and the second fixing cylinder, so that the length of the whole guardrail is adjusted, follow-up disassembly and storage can be facilitated, the first fixing frame, the second fixing frame and the noise reduction barrier are arranged and can be blocked in front of the second fixing cylinder and the second telescopic cylinder, and double protection is achieved; meanwhile, noise generated by a construction site can be reduced, a certain noise reduction effect is achieved, in addition, alarms are further arranged on the two sides of the guardrail and used for warning passing vehicles, temporarily-erected alarm equipment can be replaced, functionality is richer, and practicability is higher.

The invention discloses a quantum security network authority management system and method. The system comprises a quantum security device and a border base station. The quantum security device is used to obtain characteristic information of a sender to which an encryption key and an encrypted ciphertext belong. If the characteristic information is not in a pre-configured first preset rule, the quantum security device obtains the characteristic information of the sender to which the encryption key and the encrypted ciphertext belong to determine whether the characteristic information is in the pre-configured first preset rule. If not, the encryption key and the encrypted ciphertext are intercepted, so that the encryption key and the encrypted ciphertext can be intercepted at the source. At the same time, in combination with the characteristic information obtained by the border base station, it is also verified whether it is in the second preset rule to determine whether the encryption key is intercepted, thereby realizing double protection of the encryption key, and the overall security reliability is higher; and simple and efficient authority management can be realized.

The invention relates to a motor vehicle lock having a locking pin (5) and a locking pawl (7), the locking pin (5) being able to be brought out of an open position into at least one locking position for retaining a retaining engagement of a closure element (3) with a locking part, the locking pawl (7) being able to be brought into a locking state, a release state and an abutment state, the invention relates to a locking device (1) comprising a locking pawl (7) which, in the locking position, holds a locking pin (5) in the locking position and which, in the release position, releases the locking pin (5), the locking pawl (7), in the rest position, abuts against the locking pin (5) in the open position and can be brought into the locking position thereof in order to be able to hold the locking pin (5) in the locking position, the invention relates to a motor vehicle lock (1) having an opening device (8) with an electric opening drive (9) for motor-driven setting of a release state, the motor vehicle lock (1) having a lock control (10) for controlling the opening drive (9). According to the invention, the lock control (10) is coupled or can be coupled to the sensor (11) and is designed to detect, depending on the sensor (11), whether the closure element (3) is mounted on the motor vehicle (4) or detached from the motor vehicle (4), and to transfer the motor vehicle lock (1) into an open mode if a detached state is detected, as a result, the locking pawl (7) is brought into its release state and in particular held in this release state.

This utility model discloses a double-layer protective self-locking anchor head, comprising: a rod body, with an anchor head shell sleeved on one end of the rod body; a first conical rod head, a second conical rod head, and a thrust block sequentially arranged on the inner end of the rod body within the anchor head shell; expansion plates are provided on both outer sides of the first conical rod head; anchoring members are rotatably installed on both outer sides of the anchor head shell within the expansion plates; a limiting frame is provided on one inner side of the anchoring member, and the limiting frame is rotatably connected to the anchor head shell; a protective coating is applied to the outside of the anchor head shell; a protective sleeve is sleeved on the front end of the anchor head shell; and a screw rod is located at the end of the rod body away from the anchor head shell, with a limiting plate and a nut installed on the outside of the screw rod; the limiting plate is movably connected to the screw rod, and the nut is threadedly connected to the screw rod. This utility model achieves double protection to improve self-locking stability, with the coating providing corrosion protection and the protective sleeve providing impact protection, solving problems such as loosening and corrosion.

This invention relates to the field of public key infrastructure (PKI) technology and discloses a method and system for implementing a quantum-resistant hybrid certificate within PKI. The method generates a hybrid public key structure by combining and encapsulating a first type of public key and a second type of public key, and then performs double signing using the corresponding signature algorithm to form a hybrid cryptographic digital certificate. During verification, different types of public keys are used sequentially according to a specific pattern for verification. This method achieves the organic integration of multiple cryptographic systems, improves system compatibility and security, and can cope with the cryptographic threats posed by quantum computing.

The application relates to the field of explosion-proof safety protection of oil-immersed transformers, and discloses an external explosion-proof device of a transformer elevated seat. In the application, a gas outlet is fixedly connected to the side of the transformer elevated seat, a sliding groove is formed in the right side of the gas outlet, an elevated seat pressure relief pressure sensor is fixedly connected to the inner side bottom of the sliding groove, an inverted-arch film sliding ring is slidably connected to the inner side of the sliding groove, an inverted-arch film is fixedly connected to the inner side of the inverted-arch film sliding ring, a compression spring is fixedly connected to the inverted-arch film sliding ring, a fixed groove is fixedly connected to the right side of the compression spring, a connecting ring is slidably connected to the outer side of the gas outlet, a sealing ring is fixedly connected to the right side of the connecting ring, the sealing ring is slidably connected to an air inlet pipe, a connecting ring limiting block is fixedly connected to the left side of the air inlet pipe, and a fixed groove is formed in the front of the connecting ring limiting block. Through the overall device, the oil-gas mixture can be prevented from directly contacting air, the risk of deflagration is reduced, double protection is realized, and the explosion-proof effect is improved.

This utility model discloses a housing and an air conditioner having the same, relating to the field of air conditioner technology. The housing has a first side and a second side, with a heat exchange air inlet on the second side. The housing is provided with mounting rails for installing a filter. Both the first side and the heat exchange air inlet extend along a first direction. At least three mounting rails are arranged at intervals along the first direction. The two outermost mounting rails are edge rails, and the remaining rails are middle rails. Each mounting rail includes a first section adjacent to the first side. The vertical distance between the first section of the edge rail and the first side is greater than the vertical distance between the first section of the middle rail and the first side. This housing improves the stress and deformation conditions on the filter, achieving dual protection for the heat exchanger.

The utility model discloses a numerical control machine tool tool adaptability mounting structure belongs to mechanical manufacturing technical field, and its technical scheme main points include spindle unit, the inside fixed connection of spindle unit has servo motor, servo motor's output fixedly connected with support spindle, the outside swing joint of support spindle has self -adaptation installation mechanism, the inside swing joint of self -adaptation installation mechanism has elastic contact subassembly, can be different type tool spare corresponding size unified tool post handle, and help step motor drive linkage structure, through eight groups of slide block drive fixed block from multidirectional multipoint same direction even clamping handle, need not complex connecting piece, solved the original integration collocation dismounting need complete shutdown, adaptive connecting piece can only replace the problem of same type different model tool, realized different type rotary tool convenient and quick and the higher adaptability of replacement.

The utility model provides a kind of connecting protection mechanism for shell-and-tube heat exchanger, including tube bundle, the end head position fixed mounting of tube bundle is equipped with limit disc, wherein end head passes through the tube sheet, and is set into the tube bundle hole of outer hanging sealing disc, the tube bundle is welded together with tube sheet, and form the weld area, the tube sheet and outer hanging sealing disc are equipped with the weld rubber ring between assembly, outer hanging sealing disc is fixedly installed together by bolt with tube sheet, outer hanging sealing disc is fixed with protective outer ring by welding;The utility model constructs double protection with limit disc, weld rubber ring and outer hanging sealing disc, prevents medium from infiltrating weld, adapts high-risk medium working condition;Protective outer ring insulates erosion, disperses stress, prolongs equipment life;Dismountable bolt connection is convenient for seal replacement, reduces maintenance cost;Arc weld and conical curved surface design, further strengthen sealing and structural stability.

This utility model discloses an antistatic feeder device for circuit board surface mounting, comprising a belt feeder that transports components in the form of a reel, and an ion chamber set in the carrier tape release area of ​​the belt feeder; the ion chamber is a straight-through cavity with openings at both ends, and an ion gas flow is introduced into its interior to form an ion atmosphere zone; the carrier tape released from the reel of the belt feeder passes through the ion atmosphere zone, and static electricity on the surface of the carrier tape is eliminated by ion neutralization; the two openings of the ion chamber include a first opening and a second opening; a portion of the ion gas flow from the ion atmosphere zone is sprayed from the first opening onto the reel, and the remaining portion of the ion gas flow is sprayed from the second opening into the internal structure of the feeder. This utility model integrates ion gas flow and airflow diversion through the carrier tape path, solving the problems of electrostatic adsorption of components and dust accumulation inside the equipment.