316results about How to "Avoid exposure" patented technology

The invention provides a PQC and SM2 / 9 cooperative operation cryptographic chip and method based on an RISC-V architecture, and belongs to the technical field of cryptographic security. The chip comprises an RISC-V core and a configurable password collaborative operation unit, wherein the configurable password collaborative operation unit comprises a collaborative control state machine and a unified operation unit capable of being dynamically reconfigured. The method comprises the following steps: receiving and decoding a single cooperative operation instruction from an RISC-V core through a cooperative control state machine, and obtaining operation data feature information; the data length and the security level identification are extracted, and the optimal collaborative operation process is selected in a self-adaptive mode through comparison with a preset threshold value; and finally, dynamically configuring and scheduling a unified operation unit according to the selected process, and completing cooperative operation of the post-quantum cryptography algorithm and the SM2 / SM9 algorithm in an atomization mode. According to the method, deep fusion and intelligent scheduling of the two algorithms are realized on the hardware level, and the efficiency, the resource utilization rate and the safety of cooperative operation are improved.

The invention relates to the technical field of block chains, and discloses a block chain data encryption query method, device, equipment and medium, the method comprises the following steps: extracting data content information of to-be-chained data, using a homomorphic encryption algorithm to encrypt the data content information to obtain ciphertext content information; taking the ciphertext content information and the corresponding ciphertext hash value as on-chain evidence storage data to be stored in a block chain in a chaining manner; performing association mapping on the on-chain evidence storage data and the ciphertext access rule through the smart contract to generate an authority association rule corresponding to the on-chain evidence storage data; performing permission verification on the access permission in the data query request based on a permission association rule; after the permission verification is passed, querying the on-chain evidence storage data in a homomorphic encryption state according to the data query request to obtain an encrypted query result; and decrypting the encrypted query result to obtain target plaintext query data. The reliability of data encryption query can be improved.

The invention relates to a Keystone-based deep ground security heterogeneous data fusion method and system, and the method comprises the steps: deploying a Keystone trusted execution environment on a deep ground edge computing node, creating a security enclave, carrying out the encryption access of multi-source heterogeneous data on the basis of remote authentication and key agreement, completing the space-time alignment and feature extraction after decryption in the enclave, and carrying out the fusion of the multi-source heterogeneous data. And performing cross-modal association analysis and risk assessment based on a preset model or a rule engine to obtain a fusion result, encrypting and signing the fusion result in the enclave, distributing the fusion result to an authorized receiver through a secure channel, and realizing one-time task destruction, long-term task cycle reconstruction and key refreshing in combination with enclave full life cycle management. According to the method, the credibility and the real-time performance of heterogeneous data fusion processing in a complex scene can be improved while the confidentiality and the integrity of deep operation and maintenance data are guaranteed.

The invention relates to a solid orodispersible pharmaceutical dosing unit having a weight between 30 and 1000 mg, this dosing unit containing at least 100 µg of an estetrol component selected from estetrol, estetrol esters and combinations thereof; the solid dosing unit being obtainable by a process comprising the steps of: ⋅ providing an aqueous liquid comprising water, an estetrol component and optionally one or more other pharmaceutically acceptable ingredients; ⋅ mixing 1 part by weight of the aqueous liquid with 0.5 to 20 parts by weight of the carrier particles to produce wet particles; ⋅ removing water from the wet particles to produce charged particles; ⋅ optionally, mixing the charged particles with one or more tablet-making excipients;and to form the charged particles or mixture of charged particles and the tablet manufacturing excipient(s) in a solid dosing unit. The solid dosing unit is easy to manufacture and perfectly suited for sublingual, buccal or sublabial administration.

The present invention relates to a connector. The connector comprises: a board end connection portion which is to be mated with a wire end connection portion; the wire end connection portion which is provided with a plurality of mating cavities for mating a plurality of wire harness terminals and a retreat-stop member coupling structure; the plurality of wire harness terminals; and a retreat-stop member which is configured to allow the wire harness terminals to be fixed in the mating cavities of the wire end connection portion when the retreat-stop member coupling structure is in a first coupling state, and to allow the wire harness terminals and the wire end connection portion to be detachable when the retreat-stop member coupling structure is in a second coupling state.

The utility model relates to sofa manufacturing technical field especially is involved in the enhancement design of packing and transportation of sofa, a full dismounting sofa bed, including support base and sofa cushion subassembly, its characterized in that: support base includes support frame, support bottom plate and is located at the detachable supporting leg of support frame four corners, sofa cushion subassembly includes seat cushion, back cushion and side stop pad, seat cushion is detachably connected with support bottom plate through magnetic connection component, and the detachable connecting component is equipped between side stop pad and support bottom plate, back cushion and support bottom plate.

This utility model discloses a ceramic tile blank glazing device with a protective structure, belonging to the field of glazing. The device includes a glazing machine body, a door panel rotatably mounted at the front of the working chamber of the glazing machine body, a collection platform fixedly mounted at the bottom of the glazing machine body for collecting excess glaze, and a placement platform fixedly mounted on the upper part of the collection platform for placing the ceramic tile blank. The placement platform includes a support plate with multiple inclined flow channels on its upper part. When the operator places the ceramic tile blank on the support plate, the door panel closes, creating a sealed environment to prevent glaze splashing and dust diffusion. During glazing, excess glaze flows naturally to the edge through the inclined flow channels on the support plate and is captured by the collection platform, preventing the glaze from being exposed to the air for extended periods and reducing the volatilization of harmful substances.

The utility model discloses a kind of visual microinvasive injectors for living body cultivation gall, belong to the technical field of pharmaceutical manufacturing.A kind of visual microinvasive injector for living body cultivation gall, including upper shell, lower shell, limit ring, sealing plate, bottom plate, sealing ring, buckles and support block, the upper shell is sleeved in the surface of lower shell and limit ring, the limit ring is sleeved in the surface of injector barrel, limit ring one end extends to the outside of upper shell, and the other end is penetrated to the inside of lower shell.The utility model is designed as integrally-formed injector, minimally invasive surgery and visualization technology are integrated, simplify surgical procedure, even non-professional technical personnel can quickly master operation method.Integrally-formed design reduces different tools needed to switch or use in cooperation in surgery, reduces surgery time, reduces operation complexity, improves surgery efficiency and safety.

The utility model discloses a two -dimensional code protection device, it includes the fixed plate, the fixed plate one side is provided with the flip, the fixed plate with the hinge between the flip is hinged, the fixed plate inside is provided with two -dimensional code inlay groove, the fixed plate inside is provided with one number and places the groove, the fixed plate with the inside four corners symmetry of flip is provided with a plurality of limit hole, the limit hole inside all are fixedly connected with magnet, one number and places the groove inside fixed connection one rubber strip, the two -dimensional code inlay groove with limit hole between being provided with the protection groove, the protection groove inside fixed connection has no.

The invention provides a photovoltaic sunshade shed. The photovoltaic sunshade comprises a frame structure and a photovoltaic module. The frame structure comprises a plurality of frame assemblies and a plurality of stand column assemblies, each frame assembly comprises a frame body provided with a cavity, the upper end of each stand column assembly is used for connecting two adjacent frame assemblies, and the lower end of each stand column assembly is used for being connected with a to-be-fixed face. The photovoltaic assembly is installed in the frame structure and comprises a photovoltaic piece, the photovoltaic piece comprises a photovoltaic panel and a connector extending out of the photovoltaic panel, the connector of the photovoltaic assembly is electrically connected through an electric connection assembly, and the electric connection assembly penetrates into the cavity of the frame body and extends to the cavity of the stand column assembly.

The utility model relates to the technical field of wet curtain cooling, and discloses a wet curtain cooling structure for greenhouse, which comprises a frame, and also comprises: a cooling mechanism and a protection mechanism. The cooling mechanism includes a water tank, a wet curtain main body, a recovery tank, an adjustment device, a first control switch and a second control switch. In the utility model, when the water supply of the adjustment device is too fast, a large amount of water accumulates inside the recovery tank until the water level rises to the position of the second control switch. The second control switch controls the adjustment device to reduce the water flow rate, avoiding water overflowing from the recovery tank and causing waste. When the water supply of the adjustment device is too slow, the water in the recovery tank decreases until the first control switch is exposed. The first control switch controls the adjustment device to increase the water flow rate, so that the water level of the reflux in the recovery tank always remains between the first control switch and the second control switch, ensuring sufficient water flowing through the wet curtain main body while avoiding waste, which is beneficial to avoiding resource waste and ensuring the heat dissipation efficiency.

The utility model discloses vehicle technical field especially relates to a sound insulation board for vehicle, front engine compartment, car body structure and vehicle. Sound insulation board for vehicle includes baffle and connecting piece, and the circumferential outer edge of baffle is used for connecting with the inner wall of triangular window cavity of the front engine compartment of vehicle. Connecting piece is connected with baffle and sets up in the front engine compartment. The front engine compartment, car body structure and vehicle include above-mentioned sound insulation board for vehicle, and baffle sets up in triangular window cavity to cut off the transmission path of noise in triangular window cavity, improves sound insulation and noise reduction effect. Baffle is installed in triangular window cavity through connecting piece, and the installation difficulty of sound insulation board for vehicle is reduced, and installation efficiency and installation stability are improved, and simultaneously avoid sound insulation board for vehicle or its installation accessories to expose on the outside of front end cover plate.

The application relates to a seam welding packaging device and relates to the technical field of electronic component packaging. The seam welding packaging device comprises a machine shell, a positioning mechanism, a feeding mechanism, a material moving mechanism and a packaging mechanism. The machine shell is provided with a sealed cavity, and the sealed cavity is provided with a mounting seat. The positioning mechanism comprises a positioning table arranged on the mounting seat. The feeding mechanism comprises two feeding assemblies arranged in the sealed cavity. The two feeding assemblies are arranged in the left-right direction at intervals. One of the two feeding assemblies is used for supplying a base body, and the other feeding assembly is used for supplying a cover body. The material moving mechanism comprises two material moving assemblies arranged on the mounting seat. One of the two material moving assemblies is used for moving the base body to the positioning table, and the other material moving assembly is used for moving the cover body to the base body on the positioning table. The packaging mechanism comprises a seam welding machine arranged in the sealed cavity. The seam welding machine is movably arranged, so that the roller electrode of the seam welding machine can roll and press weld the base body and the cover body.

The utility model relates to the technical field of filter material base cloth, and discloses alkali-free glass fiber grid anti-static filter material base cloth which comprises anti-static filter material base cloth, a plurality of reinforcing assemblies are arranged at the top end and the bottom end of the anti-static filter material base cloth, anti-static cloth is arranged at the top end and the bottom end of the anti-static filter material base cloth, and the reinforcing assemblies are arranged at the bottom end of the anti-static filter material base cloth. According to the alkali-free glass fiber grid anti-static filter material base cloth disclosed by the utility model, the supporting property of the alkali-free glass fiber grid anti-static filter material base cloth is improved through the arrangement of the plurality of reinforcing assemblies, so that the alkali-free glass fiber grid anti-static filter material base cloth is not easy to deform in the use process when being made into a filter bag; according to the alkali-free glass fiber grid anti-static filter material base cloth, the anti-static effect of the alkali-free glass fiber grid anti-static filter material base cloth is improved through the arrangement of the anti-static cloth, the side edges of the alkali-free glass fiber grid anti-static filter material base cloth are not prone to loosening through the arrangement of the edge sealing assemblies, and the influence on the quality of a filter bag made of the alkali-free glass fiber grid anti-static filter material base cloth is avoided.

This utility model relates to the field of pressure regulator technology, and in particular to a flexible connection pipeline pressure regulator, including a regulator body, a movable component, a protective component, a housing component, a pressure regulating component, an input component, and an output component. The movable component includes a threaded seat, with a threaded cylinder threadedly connected to the outer surface of the threaded seat. A rotary groove is formed on the outer surface of the threaded cylinder, and a limit block is movably connected inside the rotary groove. A connecting block is fixedly connected to the side surface of the limit block, and a connecting rod is movably connected to the upper end of the connecting block. The protective component includes a mounting base, with a rotating seat movably connected inside the mounting base. A protective cover is fixedly connected to the upper surface of the rotating seat, and a pressure rod is fixedly connected to the outer surface of the protective cover. This utility model can provide comprehensive protection for the knob, preventing it from being damaged by external impacts, and at the same time preventing external dust from entering the connection between the knob and the regulator, ensuring the normal use of the knob.

This utility model provides a seat cushion structure and a shared vehicle, relating to the field of vehicle technology. The seat cushion structure includes a seat cushion assembly, a suspension, a shock absorber assembly, and an elastic protective structure. The suspension is connected to the seat cushion assembly; the shock absorber assembly is disposed between the seat cushion assembly and the suspension; and the elastic protective structure is sleeved on the shock absorber assembly. This utility model, through the cooperation of the seat cushion assembly, suspension, shock absorber assembly, and elastic protective structure, not only improves the shock absorption effect and enhances user comfort but also reduces the safety risks associated with exposed shock absorber components, resulting in better safety during use.

The utility model discloses a kind of photosensitive chip packaging structures, including circuit board, fixed filling adhesive layer, CIS photosensitive chip, support adhesive layer, wrapping filling adhesive layer, optical filter and multiple pads.CIS photosensitive chip is fixed on the top of circuit board by fixed filling adhesive layer, and the photosensitive area is jointly constituted by the support adhesive layer of setting in its outer edge and the top optical filter Sealing chip inner cavity;Photosensitive chip and circuit board are connected by multiple gold wires, and are packaged by wrapping filling adhesive layer to prevent gold wire exposure, improve structural stability.The utility model structure is packaged by optimization, effectively prevent gold wire fracture, and by reducing chip inner cavity volume, reduce the risk of fogging caused by air thermal expansion, to improve the stability and imaging reliability of photosensitive chip, applicable to the image acquisition equipment of higher imaging quality requirement.

The utility model provides a kind of lock cover, connector assembly, electric control assembly and vehicle.The lock cover includes: lock cover body, lock cover body has the protection space being set through along first preset direction, protection space is used to accommodate at least part of protected piece;Wherein, lock cover body includes multiple lock cover units, multiple lock cover units are sequentially arranged along second preset direction, to enclose into protection space, adjacent lock cover unit is detachably connected by external fastener;Wherein, recess structure is also set on the outer circumferential surface of lock cover body, recess structure is used to accommodate the head of external fastener.The technical scheme of the utility model places the connecting position of two components in protected piece in protection space, recess structure can avoid external fastener exposure, not easy to directly observe the specific structure of external fastener from outside, cannot quickly determine corresponding dismounting tool, increase the dismounting difficulty of lock cover, improve the anti-theft security of protected piece.

The utility model provides a convertible adjusting three-ball-seat trailer assembly. The convertible and adjustable three-ball-seat trailer assembly comprises a fixing frame, a first ball seat and a second ball seat, the fixing shaft is mounted in the fixing frame through a connecting structure, a second mounting groove is formed in the position, close to the top end, of the outer surface of the fixing shaft, a first butt joint groove is formed in the inner surface of the fixing frame, and a first ball group is arranged between the first butt joint groove and the second mounting groove; a butt joint shaft is fixedly connected to the outer surface of the fixing frame, and a plurality of fixing holes are formed in the outer surface of the fixing shaft; and the mounting frame is mounted on the outer surface of the fixing shaft through a connecting structure, a butt joint frame is fixedly connected to the front face of the mounting frame, and a second butt joint groove is formed in the inner surface of the butt joint frame. According to the trailer assembly capable of converting and adjusting the three ball seats, rapid storage can be achieved through the design, and exposure of the ball heads is avoided.

The present application relates to complex stratum pile foundation construction technology field, disclose a kind of riprapping stratum full casing rotary and rotary drilling combined hole construction method, comprising the following steps: leveling construction ground;Pile position lofting is carried out, and guiding positioning structure is set;First section casing with grouting passage is installed on full casing rotary drilling machine, grouting passage is used for grouting;Through full casing rotary drilling machine clamping casing, drive casing press into riprapping stratum, while rotary drilling carries out soil taking;Slurry is injected by grouting passage, and riprapping body outside casing is consolidated to form annular consolidated body;The elevation difference between the soil taking surface of rotary drilling and the bottom end of casing is controlled to be within the preset range, and the following protection wall is formed;Lengthen next section casing, and connect adjacent grouting passage;Until casing penetrates riprapping layer and main sand layer and enters lower stable layer.The present application can solve the problems of difficult riprapping stratum hole forming, easy hole collapse, easy grouting leakage and easy drill sticking.

The utility model relates to the technical field of camouflage nets, and discloses a sandy soil camouflage toggle clip camouflage net structure which comprises a bottom net, a color strip layer is arranged at the top of the bottom net, a plurality of groups of camouflage strips are arranged on the color strip layer, a plurality of groups of toggle clips are arranged at the top of the bottom net, and the toggle clips are used for limiting and fixing the camouflage strips. According to the sandy soil camouflage toggle clip camouflage net structure, the camouflage strips on the colored strip layer can be fixed through the toggle clip piece, stable supporting and fixing points are provided for the camouflage strips, the toggle clip can tightly grasp the camouflage strips under various complex environment conditions no matter whether the camouflage strips are lightly fished by breeze or attacked by strong wind, the camouflage strips are effectively prevented from flying around, and the camouflage net structure is simple in structure and convenient to use. In this way, the camouflage net always keeps complete and stable appearance in the long-time use process, and the reliability and durability of the camouflage effect are greatly improved.

The utility model discloses a kind of hall current sensor and hall current detection system, it is related to current sensor technical field, wherein, hall current sensor includes busbar and hall module, busbar is equipped with through-hole;Hall module is inserted into through-hole, hall module includes insulating shell and hall chip, insulating shell is equipped with mounting hole, hall chip is installed in mounting hole, and the hall pin of hall chip is exposed from mounting hole, to be electrically connected with PCB board, insulating shell is used to be fixedly connected with PCB board.The utility model provides technical scheme, improves the protection to hall chip, improves the detection accuracy of hall current sensor.

The utility model relates to the technical field of guardrail, and disclose a kind of assembled yard guardrail, including guardrail main part and be used for connecting the connecting pile of guardrail main part, the bottom of guardrail main part and connecting pile is respectively provided with first plug and second plug for being connected with ground plug arrangement connection, and connecting assembly is arranged between guardrail main part and connecting pile.The assembled yard guardrail, when installing, first plug and second plug are respectively inserted into ground to fix guardrail main part and connecting pile, connecting arm is inserted into the inside of connecting sleeve, and under the elastic force of supporting spring, drive pin lock is positioned in pin slot inside, the purpose of connecting between guardrail main part and connecting pile can be realized, and through the guardrail main part and connecting pile adaptation interval arrangement, the effect that certain area is comprehensively protected using guardrail can be realized, and installation is simple, and using shaft ring and connecting pile rotation connection, the angle of guardrail layout can be adjusted according to needs, and the adaptability is strong.

The utility model discloses a kind of molded case circuit breakers, it is related to the technical field of electrical equipment of circuit protection, wherein, the molded case circuit breaker includes shell and terminal assembly;Shell has wiring end, and includes upper shell and bottom shell of lid combination, and the visual passage extending towards bottom shell direction is equipped in the position of wiring end in upper shell;Terminal assembly is located in shell, and is located wiring end, and terminal assembly is used to crimp fixed external wire;Wherein, visual passage is configured to allow from the visual angle of installation time observe the length of external wire insertion terminal assembly.The utility model provides a kind of molded case circuit breaker structure, which can intuitively observe the length of wire insertion from the usual visual angle of installation (overhead or level view), to improve wiring efficiency and circuit safety.

The utility model discloses a pair of galvanized iron scissors with an anti-skid function, and relates to the technical field of galvanized iron scissors. Comprising a connecting shaft, cutter bodies are symmetrically and rotatably connected to the outer wall of the connecting shaft, the cutter bodies are used for cutting, pressing assemblies are fixedly connected to the outer walls of the cutter bodies, and the pressing assemblies are used for driving the cutter bodies to move. The knife bodies are combined, the situation that the knife edge is exposed and hurts people is avoided, the friction force between the hand and the pressing rod is increased by arranging the friction sleeve, the hand is effectively prevented from slipping in the using process, and the position of the pressing block can be flexibly adjusted according to the requirements of a user through the cooperative work of the adjusting screw rod, the sliding block, the pull rod and the pressing block by arranging the limiting assembly. The rubber sleeve on the outer wall of the pressing block is in contact with the hand, the position of the hand on the pressing assembly can be further limited, and the stability and the anti-skid effect during use are enhanced.

The utility model discloses a glove box glove flange, including outer ring body, inner ring body and frame board, outer ring body one end has the extension section, and the extension section is used for extending into glove box inside, and inner ring body is screwed with the extension section, and the other end of outer ring body has the fixed cylinder, and the frame board is connected with outer ring body through the cushion block, and the frame board slidingly fits with the movable plate, and the movable plate has the sleeve body, and the sleeve body is provided with movable cylinder, and the movable cylinder outer wall is provided with a plurality of first elastic ring, and a plurality of first elastic ring is opposite with the sleeve body inner wall, and the movable cylinder has the terrace for installing rubber gloves, and the movable plate inboard is equipped with the elastic sealing layer, and the elastic sealing layer is opposite with the fixed cylinder front end, and the movable plate can move along the frame board vertical, is used for driving sleeve body and fixed cylinder butt joint or staggered, can dismount the replacement of rubber gloves, in the process of replacing gloves, effectively avoid glove box inside long -time direct exposure in the air, effectively reduce the entry of external dust and other impurities, make the experimental environment of glove box inside not easy dust interference.

The utility model discloses a kind of power battery frame structure, power battery package and electric loader, including battery frame main body, battery support plate, battery bracket and shock absorber;The shock absorber is used to fix battery frame main body;The battery support plate is installed at the top of the battery frame main body, for carrying top layer battery, the top layer battery is fixedly installed on the battery support plate;Except top layer battery, battery is fixedly installed on the battery bracket, and the battery bracket is detachably connected inside the battery frame main body by bolt.The utility model is convenient to the unified sealing packaging of battery, effectively avoid metal exposure, damp, substantially reduce the risk of battery short-circuit combustion due to damp.

This invention belongs to the technical field of cable trench detection devices and discloses a detection device for cable trenches, including a mounting box. A support frame is fixedly mounted on the top surface of the mounting box, and a ventilation component is fixedly mounted on the top of the support frame. An oxygen sensor is movably connected to the left end of the ventilation component, and an air supply component is fixedly mounted inside the ventilation component. This invention utilizes the centrifugal force generated by the rotating connecting shaft when the device moves. This centrifugal force connects the power-off component to the power-on component, and then to the internal circuit of the drive motor. A transmission belt drives two transmission wheels, which in turn rotate the air supply component at the top of the ventilation component, drawing outside air into the ventilation component. This, in turn, causes airflow within the cable trench, forming an airflow that enters the ventilation component and contacts the oxygen sensor. The oxygen sensor detects the flowing air, increasing the device's oxygen content detection range. The device is simple to operate and reduces the workload of operators.

This invention discloses a nasal topical medication application system, relating to the technical field of nasal topical medication application devices. To improve the medication application effect, the device includes a receiving bottle with a dispensing section at its top. Delivery pipes are fixed to the inner walls of both sides of the top of the receiving bottle via fixed supports. The delivery pipes are located at the center of the inner side of the dispensing section, and an airflow channel is provided between the delivery pipes and the dispensing section. The system includes the aforementioned medication application device, as well as a nasal topical medication formula and a preparation method for the formula. The formula includes the following components: seawater and purified water. This invention features a stirring mechanism. The user can press the connecting rod to apply an axial force to the rotating column. The sliding ball and the spiral groove form a sliding engagement, causing the rotating column to rotate, which in turn drives the stirring part to rotate, achieving stirring and avoiding uneven mixing of the drug components, thus improving the medication application effect.