28results about How to "Isolated transmission" patented technology

The application belongs to the technical field of composite materials, and discloses an interface flame-retardant modified bamboo fiber / epoxy resin composite material as well as a preparation method and application thereof. 2+ The stable flame-retardant layer is constructed at the interface between the bamboo fiber and the epoxy resin by using alkali treatment, polydopamine coating deposition, Zn The interface layer does not destroy the original structure of the bamboo fiber, and improves the interface compatibility of the bamboo fiber and the epoxy resin, so that the overall mechanical properties of the composite material are improved; meanwhile, the flame-retardant properties of the composite material are improved.

The invention belongs to the technical field of sensors, and particularly relates to a small-size vehicle PTH temperature, humidity and pressure integrated sensor which comprises a shell, a pressure sensing unit, a temperature and humidity sensing unit and a signal collecting and processing unit. The temperature and humidity sensing unit comprises a temperature and humidity sensing substrate and a temperature and humidity sensing chip which are longitudinally arranged below the base; the signal collecting and processing unit comprises a main PCB (Printed Circuit Board) which is transversely arranged above the base; the main PCB is transversely arranged above the base, the temperature and humidity sensing substrate is longitudinally arranged below the base, the main PCB and the temperature and humidity sensing substrate are separated through the base, signal interference can be avoided, heat transfer can be isolated, and the detection precision is greatly improved; and the temperature and humidity sensing substrate is opposite to the flow guide channel and is electrically connected with the main PCB through a plurality of connecting pins, so that complete independence of temperature, humidity and pressure acquisition is realized on the premise that the radial size of the sensor is not increased or even reduced, and comprehensive measurement of temperature, humidity and pressure is realized.

This invention discloses an integrated sorting device for infectious medical plastics and metal sharps, belonging to the field of medical waste treatment technology. It includes a main shell, which is a hollow cylindrical structure. Inside the main shell, three sets of sieving mechanisms for sorting medical syringes are arranged from top to bottom. Three mounting arms are fixedly connected to the inner wall of the main shell at the position corresponding to each set of sieving mechanisms, and these three mounting arms are equidistantly distributed radially along the main shell. This invention achieves automated grading and sieving of different types of medical syringes and efficient integrated separation of needle tips and syringe barrels, significantly improving the efficiency and safety of medical waste disposal. Simultaneously, through the nested structure of the hollow main shaft and the built-in secondary shaft, combined with a bevel gear transmission pair driven by a closed-loop stepper motor, the working angle of all scraping blades can be adjusted synchronously at one time, enabling precise and efficient shearing and separation of the needle root.

This invention discloses a method for preparing a flame-retardant epoxy resin containing a recyclable flame retardant and its application. The method for preparing the flame retardant includes: preparing a manganese cobalt oxide flame retardant through the co-precipitation of manganese and cobalt ions followed by calcination. This invention synthesizes a manganese cobalt oxide flame retardant via a co-precipitation method and uses it as a filler in epoxy resin, curing it to obtain a green, halogen-free, environmentally friendly flame-retardant epoxy resin. It does not pollute the environment during pyrolysis or combustion and can effectively catalyze the conversion of harmful gases generated during combustion, which is beneficial to environmental protection and sustainable development. It has excellent flame-retardant properties, greatly reducing the release of heat, smoke, and harmful gases during epoxy resin combustion, significantly enhancing its fire safety. Furthermore, it enables efficient recovery of the flame retardant from the epoxy resin, with a recovery rate of up to 90.0%, achieving high-quality resource utilization.

The utility model discloses a high comfort handlebar cell phone structure, including handle body, upper holder, lower holder, upper link plate, shock absorber and shock absorbing assembly, the handle body is held fixed with detachable mode by upper holder and lower holder, the lower holder sets up on the upper link plate, and the lower holder has two installation orientation on the upper link plate, and each installation orientation makes handle body relative upper link plate to be in different position, can satisfy the comfortable riding demand of the rider of different figure, the junction of lower holder and upper link plate is equipped with shock absorbing assembly, the upper end of shock absorber is fixed below the upper link plate, and the below of shock absorber is rotatably connected with the front wheel of the vehicle body, through setting up shock absorbing assembly, further insulates the transmission of engine vibration to handle body, greatly reduces the discomfort that the rider feels in the riding process because of vibration, improves the stability and comfort of riding.

The utility model belongs to cable connection technical field especially relates to cable head of vacuum welding, wherein one kind vacuum welded cable head, include: cable body, its end portion is from outside to inside in proper order to peel off outer sheath, aluminium sheath and semi -conductive nylon layer, sealing device, its sleeve is established in aluminium sheath end portion, and with vacuum pump intercommunication, protection shell, is sealed with aluminium sheath through solder layer and connects, wherein, through peeling off semi -conductive nylon layer, to make aluminium sheath and cable outer shield between the reserved gap form air heat insulating layer, sealing device seals air heat insulating layer, and vacuum pump negative pressure suction air heat insulating layer to form vacuum layer, through the cooperation of sealing device and vacuum pump, after sealing device seals air heat insulating layer, vacuum pump to its negative pressure suction vacuum, to insulate the heat transfer to cable body inside in the welding process.

The utility model discloses high temperature heat -proof fire door relates to the field of fire door. This high temperature heat -proof fire door includes fire door unit and cooling unit. Fire door unit contains the door body, the heat insulation board of inlaying in the door body, the protection block of fixed in the back of door body and set up at the door handle of door body positive surface. Cooling unit is by setting up in the first serpentine pipe of door body, with the second serpentine pipe of first serpentine pipe intercommunication, install the inlet pipe of first serpentine pipe one end and install the outlet pipe of second serpentine pipe one end and inlay in the protection block, and outlet pipe equidistance sets up multiple water outlet holes, is used for spraying to reduce the temperature of fire door in advance. This high temperature heat -proof fire door passes through setting cooling unit, realizes the circulating flow of cooling water, initiatively reduces the temperature of fire door, further enhances the fire -resistant performance, and the water that outlet pipe sprays still can form a layer of water film, further insulates heat transfer, improves the fire -resistant performance of fire door.

The invention discloses sec-ethyl phosphate as well as a preparation method and application thereof, and belongs to the technical field of synthesis of flame retardants. Tri (2-ethoxyl) isocyanurate, phosphorus oxychloride and an alcohol compound are used as raw materials, the cyan phosphate is prepared through three-step reaction of preparing phosphoryl chloride diester, refining the phosphoryl chloride diester and synthesizing the cyan phosphate, the molecular structure contains a phosphate group and a triazine ring conjugated structure, and a carbon source, a gas source and an acid source are integrated. The thermal decomposition temperature of the sec phosphate is greater than or equal to 320 DEG C, the UL94V-0 level flame retardant standard can be reached by adding 12%-15% of sec phosphate into a high polymer material, and the sec phosphate has the characteristics of high flame retardant efficiency, good compatibility, strong migration resistance, excellent thermal stability, environmental protection and low toxicity; the synthetic preparation method is stable in process, easy in condition control and high in product purity, can be widely applied to flame-retardant modification of high polymer materials such as polyvinyl chloride, polyurethane and epoxy resin, and has important industrial application value.

This application relates to a motor heat dissipation structure for an aircraft, comprising a motor, a heat dissipation copper fin, a heat insulation pad, and a pipe clamp seat arranged and connected in one direction, forming an annular gap between the motor and the pipe clamp seat. The heat dissipation copper fin includes a mounting portion and a heat dissipation portion. The mounting portion is fitted to the motor. The heat dissipation portion is connected to the mounting portion and extends into the annular gap. One side of the heat insulation pad is fitted to the mounting portion, and the other side is fitted to the pipe clamp seat. This invention improves the heat dissipation effect between the motor and the pipe clamp seat, effectively isolates heat transfer to the pipe clamp seat, and reduces the risk of high-temperature creep or melting of the non-metallic material pipe clamp seat. Furthermore, the heat dissipation copper fin and the heat insulation pad do not change the external dimensions between the motor and the pipe clamp seat, resulting in a compact structure.

The invention provides a coal rock sample preparation device and an intelligent discrimination method, and belongs to the technical field of coal rock physical property testing. The device comprises a constant temperature and humidity chamber, a humidity control system and a sample processing and weighing system. An electric lifting platform in the sample processing and weighing system realizes separation of a sample vessel and a sample rotating disc during weighing through lifting action, so that the weighing precision is ensured. The central control and data acquisition system manages full-automatic'lifting-rotating-descending-weighing 'circulation through a finite-state machine model, and adopts an intelligent algorithm to automatically judge whether a sample reaches moisture balance or not by judging whether continuous multiple mass changes of the sample are smaller than a preset threshold value or not. The method is implemented in a central control and data acquisition system. According to the invention, the defects of low efficiency, easy interference of precision, strong subjectivity of equilibrium state judgment and the like in the traditional method are overcome, and batch, automatic and intelligent preparation of the coal rock equilibrium moisture sample is realized.

This invention discloses an antistatic and flame-retardant functional masterbatch and its preparation method, relating to the field of plastics technology. The antistatic and flame-retardant functional masterbatch prepared by this invention includes a self-made antistatic agent, a composite flame retardant, polypropylene, filler, surface modifier, lubricant, dispersant, antioxidant, and toughening agent. The self-made antistatic agent is prepared by reacting a network-crosslinked isocyanate with double-terminated carboxyl polyethylene glycol, followed by crosslinking with copolymerized polyamic acid. This not only achieves long-lasting antistatic properties but also forms a crosslinked structure in the masterbatch during co-extrusion with the composite flame retardant, synergistically enhancing flame-retardant performance. The composite flame retardant includes benzylamine-modified melamine and sulfonyl diamine-modified melamine, giving the masterbatch excellent flame-retardant properties.

The utility model relates to building structure engineering technical field discloses a kind of prefabricated building flue support mechanism of fire prevention, including two support plates and flue shell, the adjacent between two The support plate is fixedly connected with multiple fire-resistant steel columns, the adjacent between two The support plate is provided with fire prevention mechanism, the fire prevention mechanism is used to improve the fireproof effect of the flue shell, the upper and lower side of the flue shell is provided with quick -mounting mechanism, the left and right side of top The support plate is provided with connecting mechanism;The fire prevention mechanism includes ceramic fiber felt shell, the outer wall of the ceramic fiber felt shell is arranged between the adjacent of two The support plate. In the utility model, by the filling of ceramic fiber felt shell, the preliminary fireproofing and heat insulation effect is completed, then by the connection and fixation of rock wool board and multiple fireproofing backing plate, the purpose of further improving fire prevention is achieved, and then effectively prevent the deformation of frame, avoid the case that flue shell loses support.

This invention discloses an anti-torsion robot cable, belonging to the field of cable technology. It comprises, from the inside out, a cable core, an insulation layer, and an outer sheath layer. The outer sheath layer is made of the following materials in parts by weight: 80-100 parts polyvinyl chloride, 20-25 parts multifunctional additives, 2-3 parts calcium / zinc composite stabilizer, 1-2 parts lubricant, and 0.5-0.8 parts antioxidant. The anti-torsion robot cable provided by this invention incorporates multifunctional additives in its outer sheath layer, based on the molecular design principle of phosphorus-nitrogen synergistic flame retardancy and lactic acid ester group high-efficiency plasticization, which can significantly improve the overall performance of the cable from multiple dimensions.

The present application relates to the technical field of paint, and especially relates to a weather-resistant one-coat paint and a preparation method thereof. The paint comprises component A and component B; the mass ratio of the component A to the component B is (25-30):3; according to weight parts, the component A comprises the following raw materials: 20-30 parts of hydroxyl acrylic acid resin, 10-20 parts of organic solvent, 25-35 parts of pigment, 5-15 parts of flame retardant, 1-5 parts of modified graphene and 1-4 parts of additive; and the component B is a solution of aliphatic polyisocyanate. The paint has excellent bacteriostasis, flame retardation, weather resistance and corrosion resistance.

The present application relates to the technical field of all-solid-state batteries, and in particular to a silicon-based negative electrode sheet, a preparation method thereof and a solid-state battery. The silicon-based negative electrode sheet comprises an alloy layer formed by metal-doped silicon and a passivation layer formed on the alloy layer and having high ionic conductivity and low electronic conductivity. The silicon-based negative electrode sheet can inhibit lithium dendrite growth under a large current density, ensure battery safety, improve the conductivity of the electrode sheet, isolate the transmission of electrons at the electrode surface and the solid-state electrolyte interface, avoid side reactions such as electrolyte decomposition, and improve the interface stability.

The application discloses a low-heat-release, low-smoke-density flame-retardant polyamide material and a preparation method and application thereof, and belongs to the technical field of high polymer materials. The material comprises nylon resin 52-61%, a flame retardant 18-26%, a flame-retardant synergist 6-10%, a plasticizer 8-15%, a coupling agent 0.5-1.0%, an antioxidant 0.3-1.0% and a lubricant 0.3-1.0%, and is prepared through mixing, melt mixing, extrusion and granulation. The application effectively reduces the heat release and the smoke density of the polyamide material during combustion through the synergistic effect of the components such as the flame retardant, and meanwhile, good mechanical properties and processing stability are maintained, thereby meeting the demand of high-safety-grade application scenarios.

The utility model is suitable for the technical field of fireproof door hot pressing, and provides a fireproof door hot pressing device which comprises supporting frames, a conveying belt arranged between the supporting frames and a fixing frame arranged on the supporting frames. A group of hydraulic cylinders are symmetrically arranged on the fixing frame; the tail ends of piston rods of the two hydraulic cylinders are connected with the same hot pressing plate, a set of lead screw sliding tables are symmetrically arranged on the top side of the fixing frame, and the movable ends of the two lead screw sliding tables are connected with the same assembly frame. The same pressing roller is rotationally matched between the assembly frames; according to the device, real-time monitoring and uniform control of the temperature in the hot-pressing process are realized through the sectional structure and the infrared temperature measurement channels between the adjacent sections, and the accuracy and the stability of hot-pressing operation are ensured, so that the product quality is ensured; and meanwhile, due to the synergistic effect of the pressing roller and the hot pressing plate, the problem of uneven pressing of a single hot pressing plate is avoided, and the hot pressing stability and the product quality are further improved.

The present application relates to a kind of environmental protection low smoke halogen-free flame-retardant fire-resistant power cable and its preparation method, belong to cable technical field.The cable includes conductor, insulating layer and sheath layer, wherein sheath layer is made of composite material, include the following weight parts components: polyolefin matrix resin 100 parts, magnesium hydroxide 50-80 parts, modified phosphate intercalation hydrotalcite 3-8 parts, modified wollastonite 5-15 parts, modified boromagnesite 8-20 parts, compatilizer 2-4 parts, auxiliary agent 1-3 parts.The modified phosphate intercalation hydrotalcite is magnesium aluminum hydrotalcite after phosphate intercalation, then by silane coupling agent modification treatment;Modified wollastonite is by silane coupling agent modification treatment;Modified boromagnesite is by silane coupling agent and organosilicon resin common modification treatment.Product has flame-retardant, fire-resistant, low smoke performance and good mechanical property.

The application discloses a phosphorus-nitrogen synergistic polyethylene glycol intrinsic flame-retardant phase change material and a preparation method thereof, relates to the technical field of phase change energy storage materials, and the material is prepared by taking polyethylene glycol long-chain aldehyde as a phase change skeleton, condensing with aromatic primary amine to obtain a Schiff base intermediate, and adding a phosphorus-containing compound to introduce a phosphorus-nitrogen flame-retardant group, so that the material has both phase change energy storage and intrinsic flame-retardant properties. Through molecular structure design, the application retains good phase change characteristics, and at the same time, excellent intrinsic flame-retardant properties are endowed to the material, so that the problem of flammability of traditional organic phase change materials is effectively improved.

The utility model belongs to the technical field of suspended ceilings, and particularly relates to a wall top flexible lap joint suspended ceiling which comprises a suspended ceiling body, a plurality of fixing seats are fixedly arranged on the top of the suspended ceiling body, and the edges of the suspended ceiling body are fixed in a lap joint mode through metal elastic fasteners. When the suspended ceiling is used, the suspended ceiling body is not directly connected with a building wall, the edge of the suspended ceiling is connected with the metal elastic fasteners on the periphery of the wall, and when materials of the suspended ceiling body deform due to changes of air humidity, expansion caused by heat and contraction caused by cold and the like, the suspended ceiling body is not associated with the wall. And meanwhile, the suspended ceiling has a free space for self contraction and extension within a certain area range, so that the common problem that the splicing part of the suspended ceiling body is easy to crack is solved. Through the design of the adjustable suspension assembly, the height of the suspended ceiling body can be flexibly adjusted, the construction difficulty and cost are reduced, and height fine adjustment is allowed according to the room height and decoration requirements.

The invention relates to the technical field of air bearings, and discloses an air bearing device and a bearing clearance adjusting method.The air bearing device comprises a rotating shaft, a bearing base body and a mounting shell, the bearing base body comprises an inner base body, a heat insulation layer and an outer base body, the outer base body is made of a low-thermal-expansion-coefficient material, and the inner base body is made of a high-thermal-expansion-coefficient material; when the bearing base body is heated, the inner base body is slightly heated to expand, outward expansion of the inner base body is restrained by the outer base body of the low-expansion base body, and only uniform inward radial deformation is generated, so that the inner diameter of the inner base body is slightly reduced; the bearing base body is designed to be of a layered structure of the inner base body, the heat insulation layer and the outer base body, materials with the high thermal expansion coefficient and materials with the low thermal expansion coefficient are selected, temperature control of the temperature control pipeline is matched, fine adjustment of a bearing gap is achieved, and the problems that a traditional air bearing gap is fixed and cannot be flexibly adjusted according to working requirements are solved; and the adaptability and the working stability of the air bearing are greatly improved.

The utility model relates to the technical field of carved decorating parts, and discloses a flame-retardant high-percentage-of-closed-area carved decorating part which comprises an outer frame body and a fixing frame, the inner wall of the outer frame body is fixedly connected with a connecting frame, the fixing frame is arranged in the outer frame body, and the connecting frame is fixedly connected with the fixing frame. The front ends and the rear ends of the outer frame body and the fixed frame are fixedly connected with first high-closed-hole filling layers respectively. According to the flame-retardant high-percentage-of-closed-pore carved decorating part, the first high-percentage-of-closed-pore filling layer, the first filling material, the second high-percentage-of-closed-pore filling layer and the second filling material are arranged, and the relationship that the first filling material is aluminum hydroxide and the second filling material is expanded graphite is utilized, so that the flame-retardant high-percentage-of-closed-pore carved decorating part is formed; aluminum hydroxide and expanded graphite are chemically copolymerized or physically mixed to improve the flame retardance, when a fire occurs, a closed-pore structure expands to form a dense carbonized layer, flame spreading is delayed, toxic smog is not released, so that the material is safer to use, the flame retardance is improved, and the problems that the flame retardant effect is poor and the percentage of closed pore is low are solved.

The invention discloses a self-tapping anchor bolt wood-concrete composite beam anti-shear joint and a construction method thereof, and relates to the technical field of constructional engineering.The joint comprises a concrete plate, laminated wood, a perforated T-shaped steel plate and a self-tapping anchor bolt, the concrete plate and the laminated wood are each provided with a groove, and a flange and a web of the perforated T-shaped steel plate are embedded into the grooves correspondingly; the flanges are detachably connected with the concrete slab through self-tapping anchor bolts, and the web is bonded with the laminated wood through intrinsic flame-retardant structural adhesive; the web plate is provided with a hourglass-shaped reducing through structure hole and a spiral flow guide groove, and the glue solution is filled in the hole to form a mechanical interlocking structure. During construction, assembly is completed through the steps of groove treatment, steel plate connection, glue solution preparation and glue injection, curing and the like, full-assembly dry-type connection is achieved, the construction efficiency is improved, the problem that the glue injection quality of a traditional joint is difficult to control is solved, excellent shear resistance, pulling resistance and fireproof performance are achieved, reinforcement of a newly-built structure and an existing structure is adapted, and the application prospect is wide.

The utility model discloses a kind of wear-resistant anti-cracking environmental protection power cable, it is related to power cable technical field, solve the problem of lower wear resistance and anti-cracking performance of power cable in prior art;Including inner core, inner core includes a plurality of array distribution's conductor, the insulating layer of setting on each conductor and the shielding layer wrapped in the outside of insulating layer;Insulating layer includes the insulating inner layer wrapped in the outside of each conductor, the insulating outer layer wrapped in the outside of insulating inner layer and the filling layer setting between insulating outer layer and insulating inner layer gap;Still include: outer sheath structure, setting in the outside of inner core, outer sheath structure includes outer sheath, anti-cracking buffer layer, environmental protection flame-retardant layer and armoring layer;The cable scheme of the utility model can enhance the wear resistance of power cable, improve the structural strength of cable, effectively avoid the cable cracking, wire core exposure and other situations caused by bending, repeated dragging, significantly improve the service life of cable.

The utility model relates to valve technical field especially relates to a kind of liquid hydrogen stop valve of magnetic coupling drive, including valve assembly, valve assembly includes valve body part and the movable part installed on valve body part, movable part is used to open or close valve body part, elastic member is installed on movable part, inductive unit is installed on valve body part, elastic member is used to exert pre-tightening force to movable part, inductive unit is used to detect the stress value of elastic member, drive assembly is installed on valve body part, when inductive unit detects the stress value of elastic member is F1, it sends signal to drive assembly;The utility model realizes the control to drive assembly by the stress change of conical spring, so that valve can make support assembly play the supporting effect to valve core in opening state, prevent the sliding of valve core caused by magnetic coupling device failure, ensure the safe use of valve.

The utility model discloses an explosion-proof type lead-acid storage battery in the technical field of lead-acid storage batteries, which comprises an outer layer mechanism and a battery mechanism, the outer layer mechanism comprises a protective shell, the battery mechanism comprises a battery body, the battery body is arranged in the protective shell, and the protective shell is arranged in the battery body. Silica gel foam is filled between the battery body and the protective shell, and the upper end surface of the battery body is connected with an exhaust assembly through an exhaust hole; according to the utility model, the double-layer shell structure is adopted, and the silica gel foam is filled between the double layers of shells, so that the double functions of heat insulation and buffering are achieved, heat transfer in the battery can be isolated, and the influence of external impact on the battery is reduced; a gas-liquid filter cotton adsorption layer is arranged at the exhaust hole, so that acidic substances and impurities in exhausted gas can be adsorbed, and the exhaust safety is guaranteed; the sealing rubber head of the exhaust assembly can ensure tight connection and good sealing, and gas in the battery can be discharged to the outside in a centralized manner finally.

The utility model discloses an elevator door and an elevator, and belongs to the technical field of elevators, and the elevator door comprises a door plate assembly, an upper baffle, a side baffle and a lower baffle. A nanometer heat insulation plate is arranged in the door plate assembly, and fireproof cotton is arranged on the surface of the nanometer heat insulation plate One end of the upper baffle is connected with the top of the door plate assembly, the other end of the upper baffle is bent downwards to form a first bent part, a first meshing area is formed between the first bent part and the front surface of the door plate assembly, and the first meshing area is used for being meshed with a lintel to block smoke; one end of the side baffle is connected with the surface of one side of the door plate assembly, the other end of the side baffle is bent in the direction away from the door plate assembly to form a second bent part, the second bent part is provided with a second meshing area, and the second meshing area is used for being meshed with the door pocket stand column to block smoke; one end of the lower baffle is connected with the bottom of the door plate assembly, and the other end of the lower baffle is used for being meshed with a sill. According to the elevator door, the smoke passing blocking or delaying performance and the heat insulation performance of the elevator door can be improved.

The utility model relates to the technical field of boiler flow detection devices, in particular to a self-adaptive calibration boiler flow instrument sensing structure which comprises a boiler main body, a liquid inlet pipe is fixedly installed on the top of the boiler main body, a first valve is fixedly installed on the liquid inlet pipe, and an end flange of the liquid inlet pipe is connected with a thermal insulation pipe. A heat dissipation pipe is in flange connection with the end of the heat insulation pipe, a plurality of cooling fins are fixedly installed on the annular side face of the heat dissipation pipe, a calibrator is in flange connection with the end of the heat dissipation pipe, a data processing host is arranged on one side of the boiler body, the calibrator comprises a conduction pipe in flange connection with the heat dissipation pipe, and a second valve is fixedly installed at the end of the conduction pipe. A conveying pipe is fixedly installed at the end of the second valve, a flow sensor is arranged in the communicating pipe, and a metering pump used for conveying standard flow is arranged between the conveying pipe and the communicating pipe. The utility model can carry out thermal insulation protection operation, and is not easy to damage due to temperature influence.