82results about How to "Protective" patented technology

The invention provides an ultra-wideband electromagnetic shielding and bulletproof composite structure material and a preparation method thereof, and belongs to the field of preparation of electromagnetic wave-absorbing materials. The invention aims to solve the problems that the current electromagnetic shielding material is narrow in absorption wave band, the composite structure material is high in preparation cost and complex in process, and does not have protection performance. The ultra-wideband electromagnetic shielding and bulletproof composite structural material is mainly composed of four structural modules, namely (1) a wave-transparent skin; (2) preparing an aramid fiber honeycomb sandwich; (3) a reflecting plate; and (4) a bulletproof back plate. Wherein the wave-transparent skin is arranged on the outermost surface and receives incident electromagnetic waves, the aramid honeycomb sandwich, the reflecting plate and the bulletproof back plate are sequentially overlaid downwards, and all structural modules are bonded through modified resin adhesives. The ultra-wideband electromagnetic shielding and bulletproof composite structure material has a very excellent electromagnetic shielding effect, electromagnetic stealth of a target facility is achieved, meanwhile, certain protection performance is achieved, space occupation is reduced due to the multi-functionalization characteristic of the overall composite structure, and therefore the possibility that a target is detected is further reduced from the appearance; and the preparation raw materials of each structure module are rich, the cost is low, the operation process is simple, and industrial popularization and application of the ultra-wideband electromagnetic shielding and bulletproof composite structure material are facilitated.

The invention discloses a remote data management platform for security operation and maintenance service, and belongs to the technical field of computer network security and data operation and maintenance management. The platform comprises a data acquisition module, an access control module, a remote operation and maintenance control module, a data isolation and encryption module, a security auditing and tracing module, an intelligent risk identification module, a strategy decision engine and a visual management interface module. The system adopts a layered deployment architecture, and realizes multi-layer protection, dynamic strategy adjustment and traceable auditing of the whole remote operation and maintenance process through encryption transmission, block chain type log chain, deep learning risk identification and knowledge graph strategy optimization. The platform has the functions of multi-factor authentication, log chain tampering prevention, intelligent risk early warning and strategy self-learning, can effectively prevent unauthorized access and data leakage, improves the safety, intelligence and verifiability of remote operation and maintenance, and is suitable for multi-scene safety operation and maintenance management of medical treatment, energy, government affairs, industrial control and the like.

A waterproof panel lamp high in cost performance comprises a disc provided with a light source cavity and a waterproof connector arranged on one side of the disc, a light-transmitting panel is installed at an opening of the light source cavity through an aluminum frame, the edge of the light-transmitting panel is wrapped with a U-shaped sealing strip, the aluminum frame is of a square frame structure on the whole, and a step face is arranged at the connecting position of the aluminum frame and the disc. An opening in the lower portion of the disc is provided with an outer edge attached to the step face and fixedly connected through a screw, the edge of the step face is provided with a sinking groove, the screw is in threaded connection with the sinking groove, the edge of the lower portion of the aluminum frame horizontally extends to form an inner edge, the U-shaped sealing strip is arranged on the inner edge, and the connecting position of the outer edge and the disc is bent downwards to form a pressing edge. The pressing edge is pressed on the upper part of the U-shaped sealing strip; according to the panel lamp structure, the U-shaped sealing strip wraps the edge of the light-transmitting panel, the light-transmitting panel is installed at the opening of the disc through the aluminum frame, the aluminum frame and the disc are fixed through the screws, the pressing edge is arranged at the edge of the disc and connected to the U-shaped sealing strip in a pressed mode, and the whole connecting structure is simple, low in manufacturing cost and good in waterproof effect.

The invention discloses an explosion-proof infrared high-speed ball, comprising a first cavity, a second cavity and a third cavity; wherein a pitch rotation mechanism for driving the second cavity to realize pitch rotation is also arranged in the second cavity and the third cavity, the pitch rotation mechanism comprises a second motor arranged in the second cavity, a reduction transmission mechanism arranged in the third cavity, an inner transmission shaft transmission-connected between the second motor and the reduction transmission mechanism, and an outer transmission shaft transmission-connected between the reduction transmission mechanism and the second cavity, and the outer transmission shaft is rotationally connected to the outside of the inner transmission shaft, one end of the outer transmission shaft and the inner transmission shaft extends into the second cavity, and the other end extends into the third cavity; the device seals the motor in the second cavity to ensure the explosion-proof safety of the device, and arranges the transmission mechanism connected with the motor outside the second cavity, so that the second cavity for driving the camera to rotate and shoot is lighter in weight, smaller in size, and more sensitive when rotating and shooting.

The utility model discloses a sample table of an X-ray diffractometer, which relates to the field of X-ray diffractometers and comprises a positioning support column, a pair of guide arms is arranged on the positioning support column, movable connecting arms are arranged on the pair of guide arms, one end of each connecting arm exposed to the front of the positioning support column is connected with a positioning arm through a rotating shaft, and the other end of each connecting arm is connected with an X-ray diffractometer through a rotating shaft. One end, far away from the rotating shaft, of each positioning arm is provided with a channel capable of accommodating a glass slide, each positioning arm is provided with a pressure piece capable of being in contact with the glass slide, and the pressure pieces are positioned on the inner sides of the channels. And brackets are arranged on the connecting arms. In the process of positioning the glass slides, due to the fact that the angle between the positioning arm and the connecting arm is adjustable, the positioning arm and the pressure piece can be matched with clamping and positioning operation of the glass slides of different specifications. And meanwhile, the stability of the glass slide can be kept, the phenomena of deviation and falling of the glass slide in the process of operating the positioning arm and the pressure piece are avoided, and the glass slide is protected.

The application belongs to the technical field of biological medicine, and discloses application of high galangal polysaccharide in preparation of a preparation for improving alcohol-induced intestinal flora disorder. The application prepares an oral preparation with high galangal polysaccharide as an active ingredient, and aims at alcohol-induced intestinal flora disorder. According to a dosing amount of 125-250 mg / kg body weight / day, the alcohol-induced intestinal barrier damage can be repaired, the expression of tight junction proteins can be up-regulated, the intestinal flora alpha diversity can be improved, the intestinal flora structure can be regulated, the relative abundance of beneficial bacteria can be up-regulated, the relative abundance of harmful bacteria can be down-regulated, the alcohol-induced flora structure deviation can be reversed, and the intestinal short-chain fatty acid content can be increased, so that the alcohol-induced intestinal flora disorder can be well regulated.

The attractive heat dissipation device comprises a waist rest base, the waist rest base comprises a front cover plate and a rear cover plate which are spliced front and back, at least the front cover plate has a ventilation function, at least the rear cover plate is made of a plastic material, an interlayer is formed between the front cover plate and the rear cover plate, and the interlayer forms a containing cavity used for installing a fan. At least one mounting part is arranged in the accommodating cavity, and the mounting part is configured to mount a fan; the area, right opposite to the installation part, of the rear cover plate is a ventilation part, an annular installation groove is formed in the circumferential side of the ventilation part in a sunken mode, and a light-emitting assembly is detachably arranged in the installation groove. According to the attractive heat dissipation device and the seat, the light-emitting assembly is installed on the rear cover plate made of the plastic material, the atmosphere lighting effect can be provided for a user, the rear cover plate is not prone to fire even if the rear cover plate is slightly heated, and safety is good; in addition, the rear cover plate is hard in material and not prone to deformation after being extruded by a user, the light-emitting assembly is protected, and the service life is prolonged.

The application discloses a kind of preparation and application of lime key component extract with the effect of relieving psychological stress, belong to medical technical field.The application uses Rutaceae citrus plant lime as raw material, and water phase crude extract is prepared by washing and juicing, and the residue is extracted by ultrasonic-assisted ethanol to obtain alcohol phase extract, the two phases are combined and concentrated under reduced pressure, then purified by D101 macroporous resin, to obtain extract rich in active ingredients such as tangeretin, geniposide B, neohesperidin, etc.The application has simple process and high extraction efficiency, and the obtained extract is natural in origin and safe in composition.Animal experiments have verified that the extract can significantly improve anxiety-like behavior caused by stress, and the effect of relieving psychological stress is better than that of single hesperidin, and it can also effectively improve abnormal weight loss caused by stress, regulate the level of inflammatory factors in the body, and balance psychological relaxation and physiological protection.The application fills the application gap of lime in the field of psychological stress relief, and provides a new scheme for developing natural and safe stress relief products.

This invention discloses a speed reducer with adjustable reduction ratio and its adjustment method, relating to the field of speed reducer technology. The key technical points are: it includes an upper planetary assembly and a lower planetary assembly. The upper planetary assembly includes an upper planet carrier, an upper sun gear, upper planet gears, and an upper ring. The lower planetary assembly includes a lower sun gear, lower planet gears, and a lower ring. The upper sun gear and lower sun gear are connected and rotate coaxially, and the upper ring and lower ring are connected and rotate coaxially. The lower planet gears are connected to the lower sun gear and lower ring via friction transmission. At least one of the lower ring and lower sun gear has a gradient radius. The lower planet gears are configured to move along the direction of the axial displacement component to change their axial position on the gradient radius working surface, thereby changing the working radius of the lower sun gear and / or the lower ring. Through the continuous change of the working radius, the overall transmission ratio of the speed reducer is continuously adjusted, achieving a compact structure and stepless speed regulation.

The utility model discloses a novel automobile door decoration strip which comprises a strip body, one end of the strip body is provided with a side edge fixedly connected with the strip body, the end, away from the side edge, of the strip body is fixedly connected with two connecting blocks, each connecting block is provided with a through hole in a penetrating mode, each through hole is provided with a locking screw, and the locking screws are fixedly connected with the strip body. The strip body and the side edge are fixedly connected with an L-shaped deformation piece together, the strip body and the side edge are fixedly connected with a fixing plate together, and the strip body and the side edge are made of the same material and are sequentially provided with an attractive layer, a protective layer, a buffer layer and a base layer from outside to inside. The L-shaped deformation piece, the fixing plate and the two connecting blocks are matched, so that the decoration strip and the automobile door can be fixed, and the connecting stability of the decoration strip and the automobile door is guaranteed; the decorative strip is provided with the attractive layer, the protective layer, the buffer layer and the base layer, so that the functions of wear resistance, attractiveness and protection can be considered, and the practicability is high.

The utility model provides a busbar structure and a circuit breaker, the busbar structure comprises a busbar, a heat dissipation assembly and a mounting bracket, and the busbar is used for being mounted on a circuit breaker seat body of the circuit breaker and is used for being connected with an external conductive piece; the heat dissipation assembly is connected to at least one side of the busbar and is in heat exchange contact with the busbar to dissipate heat of the busbar, and the mounting bracket is respectively connected with the busbar and the circuit breaker seat body, so that heat generated when the busbar works can be timely transmitted to the heat dissipation assembly for heat exchange, the heat dissipation assembly can dissipate heat and cool the busbar, and the service life of the busbar is prolonged. The heat dissipation efficiency and heat dissipation performance of the busbar are improved, the working temperature of the busbar is reduced, and a relatively good temperature rise effect is realized, so that the phenomenon that the performance of the busbar and peripheral parts thereof is damaged due to too fast aging is avoided to a certain extent, the working performance and the service life of the busbar and the peripheral parts thereof are ensured, the use safety is improved, and the service life of the busbar and the peripheral parts thereof is prolonged. Therefore, the working performance and the service life of the circuit breaker with the busbar structure are ensured.

The utility model discloses an auxiliary hoisting tool for large pipeline compensator, including base and clamping component, and clamping component includes a pair of adjustable relative position and lockable setting in the two clamping jaws of base, and through the relative position of two clamping jaws adjustment realizes the clamping restraint or release of pipeline compensator. The utility model adopts integral type support structure, avoids the direct contact of weak position of pipeline compensator, disperses the stress point to flange and reinforcing ring, adopts modular design simultaneously to adapt to different caliber pipeline compensator, and can be received in parts and be convenient for transportation, compared with traditional hoisting method, reduces the rework and spare part waste due to hoisting damage, shortens the construction period, especially suitable for the repair scene, solves the industry pain point, and has the protection, high efficiency and economy.

The present invention discloses the combined use of scopolamine and hyoscyamine in the preparation of a drug for preventing or / and treating hyperuricemia. The combined use has an excellent synergistic effect, can significantly reduce the levels of serum uric acid, creatinine, and urea nitrogen, reduce the reabsorption of uric acid, creatinine, and urea nitrogen in urine by the kidney, and promote the excretion of the three, has significant anti-hyperuricemia activity, and has a protective effect on the kidney; it can also significantly reduce the generation of inflammatory factors, effectively improve the symptoms of joint swelling in gouty arthritis, and has clinical application value and development prospects.

This invention discloses a method and application for the separation and purification of polysaccharides from *Tea laurentii*, belonging to the field of *Tea laurentii* technology. The method includes pulverizing and sieving *Tea laurentii*, extracting with ethanol, centrifuging to collect the precipitate; adjusting the pH of the precipitate with water, adding a compound enzyme for enzymatic hydrolysis, centrifuging to collect the supernatant, vacuum concentrating, and precipitating with alcohol by centrifugation to obtain a crude polysaccharide extract. The extract is then further purified by adding water to adjust the pH, adding papain for enzymatic hydrolysis, heating and holding at a constant temperature, adding a compound solvent, centrifuging to collect the upper aqueous phase, treating with petroleum ether, adsorbing with a compound adsorbent, and dialysis to obtain refined crude polysaccharides. These are then further purified by chromatography, gradient elution, concentration dialysis, and freeze-drying to finally obtain *Tea laurentii* polysaccharides. This invention utilizes a multi-step synergistic purification process involving compound enzymatic hydrolysis, compound solvent removal, compound adsorbent adsorption, and gradient elution to effectively remove proteins, fat-soluble pigments, small molecule impurities, and salts from *Tea laurentii* polysaccharides, significantly improving the purity and uniformity of the product.

The invention discloses a programmable online kernel self-diagnosis implementation method and a storage medium. The method comprises the following steps: S1, constructing a hardware architecture; s2, test excitation and signature pre-generation; s3, software programmable configuration is carried out; the CPU sets a test mode, the number of execution SEEDs, test granularity, clock distribution and start / stop through the configuration register; s4, preparing before testing; s5, executing an online test; reading SEED from the ROM, generating excitation by a Pattern generator, loading the excitation to a kernel scan chain, capturing output, generating an MISR, and comparing the MISR with a GOLDEN MISR; s6, fault processing and a safety mechanism; and S7, recovering after testing. The storage medium is realized based on the method. The method has the advantages of simple principle, wide application range, good flexibility, high coverage rate and the like.

The utility model discloses a tethered lighting unmanned plane with air duct heat dissipation structure relates to unmanned plane technical field, this tethered lighting unmanned plane with air duct heat dissipation structure, including unmanned plane main part. The utility model discloses through annular air duct, air duct inner wall several heat dissipation fins, air duct side surface LED lighting module and the setting of heat pipe heat transfer structure, when using, utilize the downwash airflow of propeller to flow through air duct heat dissipation structure, effectively take away the heat of LED lighting module and produce, be applicable to high -power, long -time lighting task, secondly adopt heat pipe and air duct initiative heat dissipation structure, need not additional fan just can realize high -efficient cooling, and, air duct material is high -strength aluminum alloy material, possesses anti -impact and falling protection ability, and this unmanned plane system has high heat dissipation efficiency, strong structural safety and strong environmental adaptability etc. Characteristics, be applicable to emergency lighting, disaster rescue, night rescue etc. Variety scene.

The invention belongs to the technical field of bacterial strain application, and particularly relates to application of bifidobacterium lactis TY-S01 or a product thereof in preparation of a preparation for preventing or improving or treating diabetes. Animal experiments prove that the bifidobacterium lactis TY-S01 can obviously relieve diabetes characteristics (weight loss and water intake increase) of type II diabetic mice, obviously reduce fasting blood-glucose level, obviously improve insulin resistance and serum insulin level, obviously reduce serum glycosylated hemoglobin A1c level, serum Glu level and serum TG level, and can obviously inhibit the diabetes mellitus of the type II diabetic mice, so that the bifidobacterium lactis TY-S01 can be used for treating diabetes mellitus of the type II diabetic mice. The pathological injury of pancreatic tissues is obviously improved; the serum ALT level and the serum AST level can be obviously reduced, the pathological injury of liver tissues is obviously improved, and a certain protection effect is achieved on the liver.

The application provides application of alnus ketone in preparation of a medicine for preventing and / or treating ulcerative colitis, and belongs to the technical field of traditional Chinese medicines. The application research finds that alnus ketone can significantly reduce secretion of intestinal epithelial cell inflammatory factor IL-8, and has an anti-inflammatory effect. Animal experiments show that alnus ketone can reduce weight loss of mice caused by ulcerative colitis, reduce severity of occult blood, and reduce shortening of the colon, indicating that alnus ketone has a protective effect on ulcerative colitis. The alnus ketone is applied to clinical treatment, and has the advantages of high efficiency, low toxicity, economy and feasibility.

This invention provides a method for defining the original interface of a material after lead-bismuth corrosion. The method first subjects the material to be tested to thermal aging treatment to generate a Laves phase, then performs lead-bismuth corrosion on the material, and finally observes the material. The portion containing the Laves phase consists of the material matrix and Fe generated by oxygen diffusion inwards. 3‑x Cr x The O4 spinel oxide layer, the portion without the Laves phase, is the Fe3O4 oxide layer formed by the outward diffusion of metal. The boundary between the portion containing the Laves phase and the portion without the Laves phase is the original interface of the material after lead-bismuth corrosion. The method of this invention can clearly and effectively observe the original interface of the material after lead-bismuth corrosion, and can provide experimental evidence for studying the corrosion mechanism of liquid metals and the diffusion process of elements.

This utility model provides a wind turbine tower protection device that is easy to disassemble, including two mutually cooperating protective plates. The two protective plates are fixedly spliced ​​on the outside of the connection between adjacent tower sections. Semi-circular sealing rings are provided on the upper and lower sides of both protective plates. An installation ring is provided on the outer side of the protective plate between the two sealing rings. Multiple outwardly rotatable conical plates are provided on the circumferentially arranged on the installation ring. By splicing and fixing the two protective plates to the outside of the tower section connection, and with the semi-circular sealing rings on the upper and lower sides, a fully enclosed seal protection can be formed for the splicing gap. The outwardly rotatable conical plates on the outer installation ring form a physical barrier around the tower to prevent climbing. The sharp structure formed after the conical plates are rotatably rotated effectively prevents human or animal climbing, improving the safety of tower operation. Furthermore, the overall structural design facilitates disassembly and quick assembly / disassembly during later maintenance and repair, combining the dual functions of sealing protection and active anti-climbing.

The utility model belongs to technical field, concretely relates to a combined crash barrier, including first barrier board and second barrier board, the size of first barrier board and second barrier board is same, and the lower extreme of first barrier board and second barrier board is fixedly connected with a plurality of support legs respectively, the lower extreme of support leg is fixedly connected with support block, support block is provided with a plurality of threaded holes, first barrier board and second barrier board are provided with combination mechanism, first barrier board and second barrier board are provided with buffer crashproof mechanism. The utility model discloses through the lower pressure of the first barrier board and the second barrier board of the pressure block, the lower end of the first barrier board and the second barrier board is tightly attached to the top block, the front slide bar is connected with the front lug plate sliding, the rear slide bar is connected with the rear lug plate sliding, then the lower end of the front slide bar and the rear slide bar is limited by the nut, thereby the lower end of the front slide bar and the rear slide bar is fixedly limited, avoids the front slide bar and the rear slide bar to separate, thereby the effect of the loading and unloading of the first barrier board and the second barrier board is convenient to reach.

The multifunctional ultrasonic cleaner comprises a shell, a cover, a cleaning cylinder and a circuit module, the cover is provided with a sliding window, the size of an opening of the sliding window can be adjusted in a sliding mode, and the problem that a traditional cleaner cannot vertically clean long-strip-shaped objects such as toothbrushes is solved. The circuit module adopts a double-PCB strong and weak current separation design, and integrates a control key, a display screen, a UV lamp, an ultrasonic transducer and the like. And the magnet on the fixing frame is matched with the Hall sensor in the cover to form UV lamp opening physical interlocking. A charging port, a thermistor and an overload protection circuit are integrated on the first PCB, and intelligent temperature control and circuit protection are achieved. A detachable cleaning basket is arranged in the cleaning barrel, an ultrasonic transducer is mounted at the bottom, and an anti-slip damping gasket is arranged at the bottom of the shell. The multifunctional cleaning and disinfecting device has the functions of cleaning, UV disinfection and intelligent timing, is compact and portable in structure, is suitable for fine cleaning and disinfection of articles in multiple scenes such as families and medical treatment, solves the contradiction between the size and compatibility of traditional equipment, and improves the use safety and convenience.

The invention relates to the technical field of biology, in particular to a hangover alleviating composition containing dendrobium small molecule peptide and a preparation method, the hangover alleviating composition containing dendrobium small molecule peptide mainly comprises dendrobium small molecule peptide extract, the dendrobium small molecule peptide extract contains small molecule peptide DHP-1 (Gly-Ala-Val-His-Leu), DHP-2 (Pro-Tyr-Ser-Met-Gln) or DHP-3 (Asp-Ile-Thr-Lys-Cys) which are not reported, and the hangover alleviating composition further comprises auxiliary materials such as vitamin C, glucose and citric acid. After drinking, the alcohol concentration in blood is obviously lower than that of a person who does not take the alcohol-dispelling beverage within a certain period of time, so that the composition has a good alcohol-dispelling effect. After the anti-alcoholism beverage is taken, drunkenness symptoms such as dizziness, nausea and vomiting are obviously relieved, and the comfort level of a subject is improved. Liver function indexes (such as glutamic-pyruvic transaminase, glutamic oxalacetic transaminase and the like) are detected to find that the liver injury degree of a subject who drinks the anti-alcohol beverage for a long time is obviously lower than that of a single drinker, so that the composition has a protective effect on the liver.

The utility model discloses a massage sofa bed with lying linkage mechanism, including base, sliding frame, the sliding frame respectively includes support frame, seat frame, backrest frame, leg support frame, support frame and base sliding connection, seat frame fixed mounting is in support frame, and leg support frame and backrest frame are respectively rotationally connected in the front and rear end of seat frame, be provided with connecting rod subassembly between leg support frame, backrest frame and base, connecting rod subassembly includes two first connecting rod, two second connecting rod, be provided with drive mechanism between seat frame and base, when the sliding frame relatively base slides to front, backward, can pass through second connecting rod linkage backrest frame corresponding backward, forward overturn, when backrest frame backward, forward overturn, can pass through first connecting rod linkage leg support frame upward, downward overturn. The utility model can realize the synchronous linkage of sliding frame forward movement, backrest overturn and leg support lifting through single drive mechanism.

The utility model discloses a multifunctional comb structure. The device comprises a hand-held part, and a battery is arranged on the inner side of the hand-held part; maintenance lamp beads are arranged on the maintenance comb head; a hair dyeing brush head is arranged on the hair dyeing comb head, hair dyeing holes are formed in the hair dyeing brush head, a flow dividing pipeline is arranged in the hair dyeing comb head, a connecting pipeline is arranged on the handheld part, the top end of the connecting pipeline is connected with one end of the flow dividing pipeline in a sealed and inserted mode, and the other end of the flow dividing pipeline is matched with and communicated with the hair dyeing holes. A hair dyeing driving device is fixed on the inner side of the handheld part, and the connecting pipeline is mounted on the hair dyeing driving device; and a hair dyeing bottle is arranged in the container. The wireless hair care comb has the advantages that wireless use of the hair care comb is achieved, and use convenience is improved; the hair can be automatically maintained and dyed; power can be supplied to the outside as a power bank; the hair dyeing color can be more uniform during hair dyeing; different comb heads can be conveniently mounted, dismounted and replaced.

The application discloses a kind of configuration class data's cache ORM systems, specifically relates to software application technical field, including cache structure definition module, for by Groovy script configuration class data in relational database is converted into Redis specific data structure;Cache synchronization control module is coupled with the data of cache structure definition module.The application is systematically solved through Vickrey auction mechanism and reverse index incremental update the consistency problem of distributed multi-node concurrent modification cache, eliminates cache surprise group effect;Through alliance chain storage and zero-knowledge proof audit, realize the full-process tamper-proof traceability and privacy protection compliance verification of cache operation;Through the construction of immune network antibody library and complement cascade response, realize the active perception and dynamic defense of cache penetration attack, three big mechanisms work together, reduce development and operation cost, improve the security, credibility and management efficiency of cache system.

The utility model relates to the technical field of vehicles, and discloses a wading sealing structure and a vehicle, and the wading sealing structure comprises a first sealing part and a second sealing part, the first sealing part is composed of a first clamping piece and a first sealing bubble pipe which are connected. The first clamping piece is clamped and mounted at the edge of a vehicle door hole; the second sealing part is connected with the first sealing part or the first sealing part and the second sealing part are of an integrated structure; the second sealing part is arranged at a wading area corresponding to the vehicle door hole; the second sealing part consists of a second clamping piece and a second sealing bubble tube which are connected; the second clamping piece is clamped at the edge of the vehicle door hole; an elastic block is arranged outside the second clamping piece, and the elastic block increases the sealing force between the automobile door and the automobile door hole. The elastic block is additionally arranged on the second sealing part, and the compression load is increased only in a wading area; the first sealing part is used in the non-wading area, only the requirement for static closing force of the automobile door is met, and sealing reaction force is reduced as much as possible; the vehicle door closing force is obviously reduced; the door closing experience is improved.

This invention relates to the field of distribution box technology and discloses a distribution box with photovoltaic modules, including a box body, a box door, an installation module, and photovoltaic panels. The box door is rotatably connected to the front of the box body, and the photovoltaic panels are fixedly connected to the outer surface of the box body through the installation module. The installation module includes a fixed frame, a first movable frame, and a photovoltaic panel frame. The inner side wall of the fixed frame is provided with a first adjustment component, and the inner side wall of the first movable frame is provided with a second adjustment component. Two sets of installation modules and photovoltaic panels are provided and arranged symmetrically on the left and right. The device adopts a two-stage electric angle adjustment structure to improve the light energy collection efficiency, and relies on wind speed monitoring to achieve automatic storage and protection in severe weather. With independent energy storage, it eliminates the dependence on external power supply lines. The main control module integrates Beidou GPS positioning and NB-IoT wireless transmission module, which can collect geographical location and interact with the cloud, while supporting remote operation and maintenance in the cloud and local adaptive light tracking.

The application belongs to the technical field of trusted authentication, and discloses a remote user trusted authentication system, method and medium in an Internet of Things environment. The system comprises a registration center (RC), which is a trusted server and is used for safely registering or initializing other entities; an intelligent device, which is arranged in an environment and is used for collecting and transmitting data; a gateway, which supports interconnection between different protocol networks and has computing and storage capabilities; a user, who accesses remote intelligent devices through a login device; and the login device, which is used for user trustworthiness verification. The login device includes but is not limited to a mobile device, an intelligent card and a PC. Through the system and method, the trusted authentication of remote users can be realized, and safe communication between the user and the intelligent device is established. Meanwhile, the application can also solve the problems of public key cryptography complexity, user authentication vulnerability and symmetric cryptography limitations.

The utility model discloses a small oxygen generating device which comprises an oxygen generator body and an air inlet hole, the side face of the oxygen generator body is provided with the air inlet hole, the outside of the oxygen generator body is provided with a magnetic attraction groove, a metal rod is embedded in the magnetic attraction groove, the outer side of the metal rod is provided with a frame body, the inside of the frame body is provided with a pull rod, and the pull rod is provided with a pull rod. The side face of the drawing rod is connected with the plate body. According to the small oxygen production device, the frame body is arranged outside the oxygen production device body, so that a worker can conveniently clean the air inlet hole, a cleaning tool is taken out firstly, a back plate on the side face of a cleaning rod is installed in a plate body, the worker installs the frame body on the side face of the device body, and a drawing rod on the back face of the plate body is pulled back and forth; in this way, dust attached to the inner side of the air inlet hole can be cleaned away through the cleaning rod, and cleaning is convenient during use.