25results about How to "Increase security risks" patented technology

The invention belongs to the technical field of campus security, and discloses an internet-based campus security management system and method, and the system comprises a data obtaining module which is used for obtaining campus security monitoring data; the data processing module is used for preprocessing the campus security monitoring data to obtain a campus security comprehensive feature data set; the threat prediction module is used for training according to the campus security comprehensive feature data set to obtain a campus security threat prediction model, and predicting a campus security threat factor based on the campus security threat prediction model; according to the predicted campus security threat factor, judging whether the campus security has a threat; the threat diagnosis module is used for acquiring campus security threat data if a threat exists in the campus security, inputting the campus security threat data into the trained security threat diagnosis model, and predicting to obtain a campus security threat type; the emergency response module is used for formulating a corresponding emergency scheme according to the campus security threat type; and the intelligent level of management is improved.

The invention discloses a business collaborative scheduling method and device suitable for a decentralized multi-cluster Internet of Things, and belongs to the technical field of Internet of Things scheduling, and the method comprises the steps: deploying an algorithm in a control management scheduling function module on a cluster head node of each cluster of the multi-cluster Internet of Things, and the control management scheduling function module on each cluster head node calls an algorithm to complete an online processing process among a plurality of service requests so as to deploy the dynamically arrived service requests. The method can effectively prevent privacy leakage, and has the advantage of high deployment speed.

The invention discloses an oil-electricity hybrid dual-power material grabbing machine, and relates to the technical field of carrying equipment, the oil-electricity hybrid dual-power material grabbing machine comprises a material grabbing machine main body, a power mechanism is arranged on the upper surface of the material grabbing machine main body, a lifting assembly is arranged on the upper surface of the material grabbing machine main body, and a cab is fixedly mounted on the upper surface of the lifting assembly; clamping jaws of the grabbing assembly can rotate according to the specifications of materials, the materials are more compact, meanwhile, the upper portions of the materials are limited, the height of a cab can be changed according to requirements through the lifting assembly, a good view is provided for a driver, meanwhile, a buffering mechanism is arranged during falling, equipment abrasion is reduced, and the service life of the equipment is prolonged. And through the buffer assembly, shaking of the clamping jaw can be reduced on a bumpy road section, shaking caused by quick starting and sudden stopping of the materials during transferring is reduced, and the stability of material transferring is improved.

The utility model relates to the technical field of wire wrapping machines, and discloses a paper-covered copper wire wrapping machine, which comprises a wrapping machine, the top surface of the wrapping machine is fixedly connected with a dustproof cover, and the bottom edge of the front surface of the dustproof cover is fixedly connected with a dustproof mechanism. According to the paper-covered copper wire wrapping machine, through the arrangement of the dustproof mechanism, when the paper-covered copper wire wrapping machine needs to be used, a moving window is pushed into deep grooves in the two sides in a sliding rail through pushing and pulling of a handle, the opening area is increased, after an internal copper wire is installed, the moving window is pulled out and folded, and then an internal machine can be isolated from the outside; the movable window is made of glass, so that the internal winding condition can be observed through the movable window, the effect of conveniently preventing dust from entering the device is achieved, and the problems that the dust settles on a paper-covered copper wire which is being wrapped, the uniformity and integrity of an insulating layer are damaged, the insulating performance is reduced, partial discharge is caused and the like are solved; the service life of equipment is shortened and potential safety hazards are increased.

The utility model relates to the technical field of mechanical part machining, and discloses a punching device for part machining, which comprises a device body, a fixing block is fixedly connected to the inner bottom end of the device body, a connecting block is fixedly connected to the inner part of the fixing block, and an electric push rod is rotatably connected to the outer surface of the connecting block. An electric push rod is fixedly connected to the bottom end of the interior of the equipment body, a cylinder is fixedly connected to the output end of the electric push rod, a supporting plate is fixedly connected to the bottom end of the interior of the equipment body, and a fixing shaft is fixedly connected to the interior of the supporting plate. And a movable plate is driven by a rotating rod to rotate in a fixed concave block, and a pressing plate is driven by the movable plate to press downwards, so that a mechanical part can be fixed above a placement plate, and therefore, the fixation of a mechanical part body is facilitated, the position deviation in the machining and punching process is avoided, and certain potential safety hazards are improved.

The application discloses a kind of water-based dispersant and preparation method thereof, belong to pigment dispersant technical field.The water-based dispersant is random copolymer obtained by radical copolymerization of maleic acid mono-aromatic ester intermediate and hydrophilic polymerizable monomer, and hydrophilic carboxyl group and hydrophobic benzyl side chain or phenylethyl side chain are distributed in the side group of its molecular main chain.The dispersant is prepared by esterification, neutralization and water phase copolymerization three-step reaction, the preparation process of the application is green and environmentally friendly, no organic solvent residue, the obtained dispersant realizes pigment anchoring through the π-π conjugation of hydrophobic side chain, and the hydrophilic carboxylate group realizes electrostatic stabilization, and the double synergistic effect significantly improves dispersibility and storage stability, especially suitable for phthalocyanine blue and other aromatic ring-containing pigments dispersion, and can be widely applied in the field of paint, ink and the like.

The embodiment of the present application provides a kind of self-adapting power supply method and equipment, it is related to the technical field of wire-to-board connector.The method comprises: in the case where plug is connected with any one socket, the first quantity and rated current of each irradiation lamp in the lamp panel connected with plug are obtained from the nonvolatile memory, the working current of the lamp panel is determined based on the first quantity and rated current;Wherein, the nonvolatile memory is arranged in the lamp panel, to store the first quantity and rated current of each irradiation lamp in the lamp panel;The power supply control unit is switched for the socket based on the working current, so that the power supply control unit provides working current for the lamp panel through plug and socket.It is found that the plug and socket of wire-to-board connector in related art are prone to insertion error and have safety hazards.

The invention relates to the technical field of elevators, in particular to an elevator entrance protection method. The elevator hole protection device is adopted for construction, the elevator hole protection device comprises a telescopic device, the telescopic device comprises a supporting piece, a rotating column, a circular ring, an extrusion plate and a threaded sliding block, the supporting piece is arranged between the two protection upper frames, the end of the supporting piece is rotationally connected with the rotating column, and the threaded sliding block is slidably connected into the rotating column; and an extrusion plate is slidably connected to the interior of the rotating column and abuts against the threaded sliding block, and the end of the extrusion plate is rotatably connected with a mounting circular ring. When large-range adjustment is needed, the threaded sliding block is sucked into the rotary column, the protective upper frame can be directly pulled for coarse adjustment, when fine adjustment is needed, the threaded sliding block is extruded out to be in threaded connection with the protective upper frame, stepless adjustment can be carried out, the elevator hole can be completely matched, and the mode of an insertion rod and an insertion hole is replaced; only fixed point positions can be fixed, and the elevator hole cannot be adapted.

This disclosure relates to the field of electric vehicles, and in particular to a fault feedback method and apparatus of an electric vehicle charging device, and a device. The method includes: acquiring charging device information of an electric vehicle charging device; determining fault information of the charging device based on the charging device information; acquiring, based on an original communication frequency of the charging device information and the fault information, an adjustment frequency higher than the original communication frequency, and the original communication frequency of the charging device information is set by an electric vehicle controller; and sending the charging device information to the electric vehicle controller according to the adjustment frequency, so that the electric vehicle controller determines a fault of the charging device based on the charging device information. In embodiments of this disclosure, a transmission speed of the charging device information is increased, so that the electric vehicle controller quickly determines and deals with the fault based on the charging device information, thereby reducing potential safety risks in charging.

The utility model relates to a hoisting machinery field, proposed single -beam electric hoist anti -falling safety protection special device, including single -beam, the bottom of single -beam is provided with the welding seat, the top of single -beam is provided with safety protection device, safety protection device includes the car driving wheel, the side of car driving wheel is located in the side of single -beam, the side of single -beam is provided with the car driven wheel, the bottom of single -beam is provided with the suspension axle, the side of single -beam is provided with electric hoist, the top of single -beam is provided with the frame, the side of frame is fixedly connected U shape sling, one end of U shape sling is provided with the protection rope, the end away from U shape sling of protection rope is located in the side of electric hoist, the side of frame is fixedly connected with the shell, through above -mentioned technical scheme, solved the problem that single -beam electric hoist anti -falling safety protection special device in related art cannot prevent electric hoist falling.

This utility model relates to the field of pipeline installation for high-purity gas supply devices, and more particularly to an auxiliary support for pipeline installation. It includes a base plate and an installation structure. Four auxiliary frames are fixedly connected to the upper surface of the base plate. An adjustment structure is provided on the upper surface of the base plate, comprising a hydraulic rod mounted on the base plate. A connecting plate is fixedly connected to the output end of the hydraulic rod, and auxiliary rods are fixedly connected to both sides of the connecting plate. A sliding groove is formed on the inner wall of each auxiliary frame, and a vertical rod is slidably connected to the inner wall of the auxiliary frame. An installation rod is fixedly connected to the upper end of each vertical rod, and a support frame is provided between two installation rods. The pipeline installation auxiliary support provided by this utility model has the advantages of facilitating the auxiliary installation of high-purity gas supply device pipelines, enabling convenient and rapid pipeline installation, and allowing for easy adjustment of the auxiliary support according to the installation height.

The utility model discloses a polyolefin insulation polyolefin sheath green environment-friendly high-temperature-resistant fireproof flexible cable, and relates to the technical field of cables. The cable comprises an inner conductor, a polyethylene sleeve layer is arranged outside the inner conductor, a filling layer is arranged outside the polyethylene sleeve layer, an insulating layer is arranged outside the filling layer, an isolating layer is arranged outside the insulating layer, a high-temperature-resistant layer is arranged outside the isolating layer, a first flame-retardant layer is arranged outside the high-temperature-resistant layer, and a second flame-retardant layer is arranged outside the second flame-retardant layer. A first flame-retardant layer is arranged outside the cable body, a second flame-retardant layer is arranged outside the first flame-retardant layer, a wear-resistant layer is arranged outside the second flame-retardant layer, an anti-oxidation coating is arranged outside the wear-resistant layer, and the number of the polyethylene jacket layers is five. According to the utility model, the high-temperature-resistant layer, the flame-retardant layer I, the flame-retardant layer II, the insulating layer and the anti-oxidation coating are arranged, so that the whole cable has the effects of environmental protection and high temperature resistance when a fire disaster occurs, and the problems that the cable is easy to burn to cause the fire disaster, the potential safety hazard is increased and the harm is caused to people are solved.

This utility model belongs to the field of lighting technology and discloses a variable color temperature LED lens assembly for automotive lighting. It includes a substrate, a reflector, a first LED particle, a second LED particle, a heat sink, a cooling fan, a light / dark cutoff plate, a solenoid valve, an adjustment mechanism, and a lens. The reflector is mounted on the right side of the substrate, and its inner side is coated with aluminum to reflect light to the left. The first and second LED particles are mounted parallel to each other on the upper surface of the substrate. The heat sink is mounted on the right side of the upper surface of the substrate, increasing its surface area to dissipate heat from the substrate. The cooling fan is mounted on the lower surface of the substrate, generating airflow around the heat sink to enhance its heat dissipation capacity. The light / dark cutoff plate is mounted on the left side wall of the substrate. This design makes it easier to see road conditions in inclement weather, significantly improving driver safety. It also allows for changing the illumination range, making it suitable for different road conditions and reducing driver eye fatigue.

The utility model relates to air conditioning technical field, concretely provides a mobile air conditioner, aims at solving the problem of drainage noise. For this purpose, the utility model's mobile air conditioner includes: the shell, forms the cavity inside, outdoor air duct subassembly divides the cavity into the indoor cavity and outdoor cavity of upper and lower distribution, and outdoor air duct subassembly includes upper air duct board, lower air duct board and volute, and upper air duct board constructs the water receiving space of indoor heat exchanger, drainage pipe is communicated with water receiving space and is located in upper air duct board, and drainage pipe extends towards lower air duct board, and the water collecting box is shaped in lower air duct board and is located in the outside of volute corresponding to drainage pipe, and drainage pipe extends into the inside of water collecting box, and the water distribution part is located in water collecting box and extends towards upper air duct board direction in lower air duct board, and the water distribution part can make the condensed water of drainage pipe flow along the surface to air duct board. The water distribution part can make the condensed water of drainage pipe flow along the side to the bottom of water collecting box, so as to reduce the flow noise.

The invention relates to the technical field of fabricated buildings, and discloses a large-span arched steel corrugated plate structure hoisting alignment device which comprises a plurality of arc-shaped hoisting plates symmetrically arranged front and back, a corrugated steel plate body is placed on the lower sides of the arc-shaped hoisting plates, and matched magnetic hoisting plates corresponding to the arc-shaped hoisting plates are arranged on the inner wall of the corrugated steel plate body. The front side and the rear side of the outer wall of the corrugated steel plate body are each provided with two sets of embedded hollow bolts. The large-span arched steel corrugated plate structure hoisting alignment device can effectively solve the problems that in the prior art, a traditional hoisting tool is difficult to resist external force interference such as hoisting inertia and wind power, so that the hoisting tool shakes, the position of a corrugated steel plate deviates, point contact enables stress to be concentrated on a hoisting point, the hoisting point is sunken and wrinkled, and the integrity of a component is affected; in the prior art, single hoisting needs repeated operations of multiple hoisting, adjusting and falling, so that the hoisting period is greatly prolonged, and the problems of fatigue of a hoisting tool and abrasion of a steel wire rope in the repeated hoisting process are also caused.

The utility model relates to the technical field of building equipment, in particular to a universal beam steel formwork lifting appliance which comprises a vertical beam, a cross beam, clamping plates, clamping columns, a fixing column and a steel rope, the vertical beam is fixedly connected to one end of the cross beam, the clamping plates are symmetrically and fixedly connected to the top of the cross beam, the clamping columns are movably connected with the clamping plates in a clamping mode, the fixing column is fixedly connected to the top of the vertical beam, and the steel rope is arranged on the vertical beam. The steel rope is fixedly connected with the clamping column and the fixing column, and the problems that in the prior art, when prefabricated beams and slabs are widely adopted, steel formworks are hoisted through steel wire ropes, consumed time is long, much manpower is needed, labor cost is high, potential safety hazards are large, and great risks exist are solved.

This utility model relates to the field of transformer technology, and more particularly to a miniature transformer, including a mounting plate on which a miniature transformer is fixedly mounted. A base plate is provided at the bottom of the mounting plate. Placement holes are correspondingly provided on both the mounting plate and the base plate. A driving block is slidably disposed within the placement holes. Four circumferentially spaced connecting rods are rotatably mounted on the bottom end of the driving block via a rotating seat. This utility model adjusts the distance between the driving block and the contact block by rotating the rotating ring, reducing the angle between the connecting rods and the driving block, and allowing the sliding block to slide in the sliding groove towards the placement groove. A clamping block is placed in the placement groove to limit the mounting plate, facilitating the replacement and disassembly of the miniature transformer. Combined with heat dissipation plates attached to the side walls of the miniature transformer, it dissipates the heat generated during operation, preventing excessive internal heat from increasing safety hazards.

The utility model discloses a coal mine tunnel roof drainage device, which relates to the technical field of coal mine tunnel drainage devices, and comprises a water collecting tank covered below a water spraying area of a tunnel roof, and the water collecting tank is an open groove with a bottom plate at the lower part, side plates at the periphery and an opening at the top; one side plate of the water collecting tank is provided with a water outlet penetrating through the plate surface of the side plate, and the water outlet is connected with a drainage pipe; the device is easy to mount, simple to operate, simple in structure, high in water spraying and drainage efficiency and capable of reflecting the sludge condition in the water accumulation tank in time.

The application discloses a chip test probe, which comprises a chip probe, a needle tube and a temperature change inlay core. The needle tube with the built-in spiral spring is located in a needle sleeve, the tail of the needle head is located in the needle tube, the head of the needle head extends out of the needle tube, the tail of the needle head has a hollow wide-mouth tube with a diameter larger than the needle head, the hollow wide-mouth tube is composed of a plurality of strip petals arranged at intervals in the circumferential direction, a plurality of the strip petals enclose a storage cavity, and a line groove is arranged between the adjacent strip petals; the temperature change inlay core is embedded in the storage cavity of the hollow wide-mouth tube, one end of the spiral spring is in contact with the temperature change inlay core, and the other end is in contact with the tail of the needle tube. The chip test probe improves the sensitivity and accuracy of the detection signal, avoids the risk of electric spark, improves the safety hidden danger, further improves the stability of the detection data, and improves the consistency and comparability of the data.

The utility model provides a counting device applied to winching and a winching mechanism. The counting device comprises a first linkage piece which is arranged on the hoisting mechanism and rotates along with the rotation of a winding drum of the hoisting mechanism; the device comprises a first linkage piece, an encoder and a transmission assembly, the encoder calculates the number of rotation turns of the first linkage piece through the transmission assembly, the transmission assembly comprises a second linkage piece and a linkage shaft which are fixedly connected, the first linkage piece is in transmission connection with the second linkage piece, and the linkage shaft is connected with the encoder. The counting device applied to the winch and the winch mechanism provided by the utility model have higher precision, stronger anti-interference capability, better high temperature resistance and higher safety, are more suitable for an intelligent system, and can better meet the requirement of counting the winch height of a crawler-type hoisting dynamic compactor.

The invention discloses a method for preparing composite ferric sodium pyrophosphate by sulfur cycle, which comprises the following steps: S1, preparation of composite ferric sodium pyrophosphate: mixing ferrous sulfate, a sodium source, a phosphorus source and a dispersing agent by a wet process, spray-drying to obtain a precursor, and calcining at high temperature under a protective atmosphere to obtain the composite ferric sodium pyrophosphate; s2, tail gas recovery and conversion: sulfur-containing tail gas generated in the high-temperature calcination process of the precursor and air pass through a multi-layer vanadium pentoxide catalyst, and temperature control reaction is performed to convert SO2 into SO3, so that SO3 tail gas is obtained; s3, SO3 tail gas collection and conversion: SO3 tail gas is transferred into a sulfuric acid collector through temperature control of a heat exchanger, so that SO3 and H2O are cooled and converted into a sulfuric acid solution; and S4, preparation of ferrous sulfate: adding an iron source into a sulfuric acid solution, carrying out heating reaction, carrying out solid-liquid separation, cooling, and adding a reducing agent for reaction to obtain the ferrous sulfate used in the step S1. The preparation method has the characteristics of low cost, high reversible specific capacity and environment friendliness.

This invention relates to a chlorine-free green refining method for crude bismuth, belonging to the field of pyrometallurgical technology for non-ferrous metals. The process includes: oxygen-enriched ash blowing: removing arsenic and antimony from crude bismuth to a content of ≤0.08%; vacuum distillation: vacuum distilling the arsenic-antimony-removed crude bismuth to obtain volatile lead-bismuth-tellurium alloy and residual copper-tin-silver alloy; alkali removal of tellurium: adding caustic soda to the lead-bismuth-tellurium alloy under oxygen-enriched blast to obtain a lead-bismuth alloy and alkaline slag; preliminary lead removal through oxidation slag formation: blowing the lead-bismuth alloy into oxygen-enriched air while simultaneously adding slag-forming agents in batches to obtain bismuth-rich lead; continuous crystallization: continuously crystallizing the bismuth-rich lead to obtain refined bismuth with a purity greater than 99.99 wt% and a bismuth-based lead alloy. This invention employs a technical solution of "oxygen-enriched ash blowing – vacuum distillation – alkali removal of tellurium – preliminary lead removal through oxidation slag formation – continuous crystallization," forming a novel short-process, environmentally friendly refining technology to purify crude bismuth into refined bismuth.

The application discloses a cylindrical lithium battery roll groove sealing structure and a sealing process, and relates to the technical field of lithium battery packaging. The cylindrical lithium battery roll groove sealing structure comprises a battery shell of a cylindrical lithium battery, the battery shell is sequentially provided with a pole flow disc, a diaphragm and a steel cap from the lower opening end, the opening end of the battery shell is provided with a roll groove, the inner wall of the roll groove is provided with a sealing ring, the diaphragm and the steel cap are both limited in the sealing ring, and the pole flow disc is located below the diaphragm. The application optimizes the sealing structure design, improves the width of the opening end of the battery shell to > 4 mm, retains a flat platform structure of > 2 mm, simultaneously reduces the inner diameter of the roll groove by 1-2 mm compared with the conventional size, solves the technical pain point that the positive and negative electrodes cannot be welded on the same side due to the narrow edge covering and the absence of a flat platform in the traditional roll groove sealing, makes the mature and low-cost roll groove sealing process adapt to large cylindrical battery production again, and greatly reduces the overall production cost of the large cylindrical battery.

The present invention relates to a novel dust-proof feeding device for lithium battery diaphragm and a method of using the device, which includes a cutter, a material box, a transmission belt, a transmission roller, a hydraulic table, a hydraulic support, a hydraulic cylinder, a vehicle body, a sliding device, a material outlet, a material delivery pipe, a vacuum pump, a handle, and a program control device. When the hydraulic table is lowered to the lowest point, a material bag is placed on the hydraulic table, and as the transmission roller rotates and the hydraulic support rises, the material bag enters a predetermined position; as the transmission belt rotates in the reverse direction with the transmission roller, the material bag enters a feeding position, the material box is covered, and the material bag is cut with a cutter; the powder is sucked into a barrel under vacuum negative pressure. The present invention is easy to operate, enhances feeding efficiency, reduces dust, and facilitates the control of metal foreign matter.