1772results about How to "Improve buffering effect" patented technology

A buffering hardware hinge outside a cup comprises a hinge cup and a hinge arm, the hinge cup and the hinge arm are connected in a hinged mode through an upper connecting rod and a lower connecting rod, a guide groove penetrating through a body is formed in the bottom of the hinge cup, and a driving plate is installed at the outer bottom of the hinge cup in a covering mode; a sliding block is arranged on the top of the driving plate and installed in the guide groove in a sliding mode. The end, facing the hinge cup, of the upper connecting rod extends outwards to form a driving arm, and when the hinge is closed, the driving arm acts on the sliding block to push the sliding block to slide in the guide groove; a buffer is fixedly mounted at the outer bottom of the hinge arm, a piston rod or a cylinder body part of the buffer is connected with the driving plate, and the buffer has a damping effect on the movement of the driving plate, so that the damping effect when the hinge is closed is realized. The device has the beneficial effects that the buffer is installed outside the hinge arm, through the design of the guide groove and the driving plate, the external space is effectively utilized, and the problem that the internal space is limited is avoided.

The invention discloses a low-smoke halogen-free cross-linked polyethylene insulated power cable, and relates to the technical field of power cables, the low-smoke halogen-free cross-linked polyethylene insulated power cable comprises a central conductor, the outer side of the central conductor is tightly coated with a rubber insulation sleeve, and the outer sides of a plurality of rubber insulation sleeves are jointly coated with a limiting silicon rubber sleeve; the outer side of the limiting silicon rubber sleeve is evenly coated with axial supporting inner rings at equal intervals, the outer rings of the axial supporting inner rings are tightly coated with axial protection outer rings, the outer sides of the axial protection outer rings and the filling soft rubber sleeve are jointly coated with an isolation protection rubber sleeve, and the outer ring of the isolation protection rubber sleeve is tightly coated with an installation outer rubber sleeve. According to the cable, the situation that rain and snow are attached to the outer side of the cable, and consequently the overall weight of the cable is increased is effectively prevented, the transverse traction force of the connecting position of the ends of the cable during working is reduced, the fatigue aging rate of the connecting position of the cable is reduced, and the actual service life of the cable is prolonged.

The invention belongs to the technical field of optical cables, and discloses an optical fiber ribbon optical cable with special-shaped butterfly-shaped leading-in units, which is provided with a plurality of first optical fiber ribbons, a plurality of special-shaped butterfly-shaped leading-in units, four reinforcing components, a frame component and an outer sheath, the special-shaped butterfly-shaped leading-in units are embedded on frame strips of the frame component, and the special-shaped butterfly-shaped leading-in units and the frame component form a cable core. The cross section of the cable core is rectangular; the reinforcing part is located in the extension cavity, all the first optical fiber ribbons are distributed in the center cavity in a stacked mode, and the cable core is coated with the outer sheath. The optical fiber connector has the main beneficial technical effects that the density of the fiber core is higher, the manufacturing is easier, the number of butterfly-shaped introduction units is larger, the disassembly and assembly are more convenient, the space utilization rate is higher, the optical fiber connector can be suitable for various optical fiber connectors in the prior art, and the compression resistance and the buffering capability are stronger.

The invention discloses a multifunctional electronic product screen protective film and a preparation method thereof. The protective film comprises a modified base film and a multifunctional composite layer compounded on the surface of the modified base film, the multifunctional composite layer comprises an elastic buffer layer and a self-repairing layer which are sequentially arranged from inside to outside; wherein the elastic buffer layer is an elastic buffer layer with gradient density; the elastic buffer layer comprises the following components in parts by weight: 100 parts of a thermoplastic polyurethane elastomer, 15-25 parts of hollow glass microspheres, 10-15 parts of polyethylene glycol and 3-6 parts of an isocyanate cross-linking agent; the self-repairing layer comprises the following components in parts by weight: 100 parts of a dynamic reversible covalent bond polymer, 30-40 parts of phase change material microcapsules, 10-15 parts of nano cellulose, 5-8 parts of a near-infrared photosensitive initiator and 2-4 parts of an antioxidant. Compared with the prior art, the protective film provided by the invention has excellent scratch self-repairing performance, good adhesion and high anti-explosion screen performance.

The invention discloses a hydraulic oil cylinder with high buffering performance, and relates to the technical field of hydraulic oil cylinders, the hydraulic oil cylinder comprises a reciprocating motion assembly, and the reciprocating motion assembly is used for driving a piston rod to do reciprocating rectilinear motion. During use, when a sealing piston is about to move to a stroke terminal, a buffer ring generates thrust on an annular plate, so that two nitrile rubber pads are sunken, meanwhile, a reset spring is extruded and contracted, and under the cooperation of the reset spring and the nitrile rubber pads, the sealing piston is preliminarily buffered, and in addition, a connecting rod pushes a buffer plate to move in an arc-shaped cover; the piston rod body is filled with hydraulic oil and gradually extrudes polyurethane foam, the polyurethane foam has good buffering performance, the filled hydraulic oil generates viscous resistance, the extruded hydraulic oil can enter the buffering cavity through the oil inlet cavity, secondary buffering is conducted on the sealing piston under the cooperation of the polyurethane foam and the filled hydraulic oil, the movement speed of the piston rod body is gradually reduced, and the sealing effect is improved. And stable speed reduction and stopping are realized.

The invention provides an annual intercropping green manure planting method suitable for orchards in plateau areas. According to the method, tartary buckwheat and vicia villosa are mainly adopted as green manure plants, and a plurality of key steps of land parcel selection, soil preparation before sowing, variety selection, seed treatment, green manure sowing, plant management, cutting and covering and the like are clearly stipulated. The method can improve the utilization rate of nutrients in the soil, increase the content of organic matters in the soil, improve the soil quality, effectively inhibit growth of weeds between rows and on ridges of the organic apple orchard, reduce the weeding cost, and solve the problem of high labor cost caused by long-term ploughing and weeding of the organic apple orchard in the plateau mountain area of Yunnan province. Excessive dependence on organic fertilizer is effectively relieved, and the method is an annual intercropping mode for comprehensively improving ecological benefits and economic benefits of the orchard.

The invention discloses equipment and a method for detecting the strength of an annular section of a large-diameter TA31 pipe, and relates to the technical field of pipes. According to the annular section strength detection equipment for the large-diameter TA31 pipe, through the design of a composite mechanism, the pipe is placed in the processing mechanism, the pipe space is restrained through the limiting mechanism, the pipe is prevented from moving in the inspection process, danger to workers is avoided, and therefore normal operation of the equipment is kept; the fixing mechanism controls the pipe to rotate and rub with the processing mechanism, so that the effect of cleaning the surface of the pipe is achieved, the situation that stains on the surface of the pipe affect the detection effect is avoided, a hydraulic rod controls a pressing plate to extrude the surface of the pipe, and the detection effect on the annular section strength of the pipe is achieved; therefore, the friction force on the surface of the pipe is increased, the pipe is prevented from shaking in the downward pressing process, and the operation stability is improved.

The invention belongs to the technical field of chip processing, and discloses a wafer laser cutting device based on chip processing, which comprises a vibration mechanism, the vibration mechanism comprises four sliding blocks, the interiors of the sliding blocks are fixedly connected with first motors, and the first motors are rotatably connected with cams; through cooperation of the cam, the clamping plates and other structures, the laser cutting effect of the wafer is improved, the first motor is started to enable the wafer clamped among the four clamping plates to generate slight vibration in the vertical direction, the slight vibration promotes micro movement of a material in the laser cutting process, better interaction between a laser beam and the material is facilitated, and the laser cutting efficiency is improved. A more uniform and smoother cutting face is achieved, the vibration effect can accelerate the melting or crushing process of materials, the cutting time is shortened, the cutting efficiency is improved, meanwhile, vibration can accelerate airflow on the surface of a wafer, a certain heat dissipation effect is achieved, local overheating of the materials is reduced, expansion of a heat affected zone is avoided, and the flatness of the cutting edge is improved.

The invention relates to the technical field of batteries, and discloses a battery shell and a battery. The battery case includes: a case having an opening; the cover plate seals the opening to form a containing cavity, the cover plate comprises a cover plate body and a folded edge arranged on the edge of the cover plate body, the folded edge extends in the direction away from the containing cavity and is welded to the shell, a welding area is formed at the welding position of the folded edge and the shell, and in the extending direction of the folded edge, the cover plate body is located on the side, close to the containing cavity, of the welding area. In the direction perpendicular to the upper surface of the cover plate body, the distance between the side, close to the containing cavity, of the welding area and the upper surface of the cover plate body is h, the distance between the side, away from the containing cavity, of the folded edge and the side, close to the containing cavity, of the cover plate body is H, and h / H is larger than or equal to 0.17 and smaller than or equal to 0.5. The cover plate can play a buffering role, and the cover plate is prevented from being separated from the shell during thermal runaway; meanwhile, the overall height of the cover plate can be controlled, and the internal space of the shell is ensured, so that the energy density of the single battery is ensured.

The invention provides a secondary sizing agent as well as a preparation method and application thereof. The secondary sizing agent comprises the following components: a main film-forming agent, an auxiliary film-forming agent, a lubricant, a silane coupling agent and water, wherein the main film-forming agent is an aqueous epoxy solution, the auxiliary film-forming agent comprises a low molecular weight epoxy emulsion and an aqueous polyurethane emulsion, and the lubricant comprises an organosilicon lubricant and an ionic lubricant. In the scheme, the secondary sizing agent formed by mixing the main film-forming agent, the auxiliary film-forming agent, the lubricant and the silane coupling agent with proper types and proper contents can endow the silicon carbide fiber with excellent wear resistance, folding resistance and mechanical properties. Compared with one-time sizing, the number of times of wear resistance of the fiber yarn is increased by more than 10 times, the yarn breaking rate in the fabric processing process is greatly reduced from 10% to 0.5%, the surface smoothness of the prepared fiber fabric is greatly improved, the performance of the composite material prepared through the impregnation method is integrally improved, the bending strength is obviously improved, and the performance requirement of the three-dimensional fabric can be completely met.

The invention belongs to the technical field of conveying equipment, and particularly relates to safety auxiliary coal conveying equipment for coal mine transportation. Comprising a rack, and a crushing assembly and a smoothing assembly are arranged at the upper end of the rack; the crushing assembly comprises a connecting cylinder, a screen, a guide table, a crushing table and the like, the connecting cylinder and the screen shovel up coal briquettes on the conveying belt, large coal briquettes are screened out, the large coal briquettes are conveyed to the crushing table to be crushed through the guide table, and the crushed coal briquettes fall onto the conveying belt; the smoothing assembly comprises smoothing rollers capable of rotating and revolving, and coal briquettes accumulated on the two sides are pushed into the middle of the conveying belt through the smoothing rollers. And the coal briquettes conveyed by the conveying belt are uniform and are not easy to fall off from the conveying belt, so that the safety and the conveying efficiency of the coal briquettes during conveying are improved.

The invention discloses polylactic acid polyol as well as a preparation method and application thereof. The preparation method comprises the following steps: performing a heating reaction on zinc salt, organic ammonium salt and bis (ethylene carbonate) ether to prepare an in-situ catalyst; anions of the organic ammonium salt are selected from any one of bromide ions, chloride ions and iodide ions; and adding a lactide monomer, and carrying out polymerization reaction to obtain the polylactic acid polyol. The polylactic acid polyol prepared by the invention has a flexible chain segment, can provide better flexibility, and can be applied to preparation of a polyurethane material.

The utility model relates to the technical field of two-plate machines, and discloses a two-plate machine band-type brake synchronous rotating shaft device which comprises a driving motor, a fixed plate and a movable plate, a second fixed block fixed plate is arranged on the side portion of the second fixed block movable plate, and accurate control over a band-type brake can be achieved through the driving motor, a rotating rod and a control motor in the device. The synchronous movement between the two plates of the mold is ensured, so that the precision and the quality of a formed product are improved, the possibility of part failure caused by abrasion or aging can be reduced through the cooperation of a movable groove, a driving lead screw and a limiting rod, the service life of the device is prolonged, and two sets of control band-type brakes are arranged on the movable plate, so that the production efficiency is improved. And synchronous movement is realized through a complex transmission mechanism, so that the stability of the device is enhanced, unstable factors in a mold movement process are reduced, the problem that synchronous operation is out of control is solved, and the production efficiency of the injection molding machine is improved.

The invention discloses a line drive type biped robot leg structure which comprises a thigh support, a knee joint motor is arranged at the lower end of the thigh support, a shank support is connected to an output shaft of the knee joint motor, a foot assembly is movably connected to the lower end of the shank support and comprises a foot fixing piece, and a heel is connected to the rear portion of the foot fixing piece. The heel is connected with a line driving structure, the line driving structure comprises a first ankle joint motor, a second ankle joint motor, a first driving line wheel, a second driving line wheel, a first ankle joint line wheel and a second ankle joint line wheel, and a first transmission line is arranged between the first driving line wheel and the first ankle joint line wheel; a second transmission line is arranged between the second driving line wheel and the second ankle joint line wheel, a first crank swing rod structure is arranged between the first ankle joint line wheel and one side of the heel, and a second crank swing rod structure is arranged between the second ankle joint line wheel and the other side of the heel. The device has the advantages of being simple in structure and good in adaptability.

The invention relates to the technical field of micro-current stimulation, in particular to an intracranial micro-current stimulation sleep physiotherapy instrument. The device comprises a case, an output line is fixedly connected to the end of the case, a transmission head is fixedly connected to the end of the output line, and a plurality of electromagnetic induction coils are arranged on the outer wall of the transmission head; detection heads are arranged at the ends of the electromagnetic induction coils, stabilizing assemblies are arranged in the detection heads, protection assemblies are arranged between the detection heads and the outer walls of the stabilizing assemblies, and the stabilizing assemblies comprise electrode plates. When the device is not used, the protection assembly seals the opening of the detection head, isolates the electrode plate from dust and resists external force damage; during use, the protection assembly is overturned to the back along a track, and the electrode plate is exposed; during wearing, the electrode plate and the detection head are attached to the scalp, the protection assembly is pulled to drive the stabilizing assembly, air is pumped out to form a vacuum environment, the detection head is tightly adsorbed to the scalp, and the stability is greatly improved; even if the head moves in sleep, the detection head is not easy to fall off.

The invention provides a unit cell structure design method and device based on nickel-titanium shape memory alloy, and relates to the technical field of intelligent materials and structures.The method includes the steps that relevant characteristic parameters of nickel-titanium alloy are collected, a mechanical property index, a thermal stability index and a reliability index are generated, and then a phase change temperature index is obtained through comprehensive calculation; and the phase change temperature threshold is corrected, the geometrical shape and the bonding mode of the unit cell structure are determined, and the quasi-zero-stiffness curved beam, the supporting frame and the connecting part of the unit cell structure are optimally designed in combination with the corrected phase change temperature threshold. According to the method, through characteristic parameter pretreatment, mechanical property index calculation and unit cell structure geometric optimization of the nickel-titanium shape memory alloy, the excellent performance under different phase change states is achieved, and the buffering energy absorption and low-frequency vibration isolation functions of the alloy are improved.

The invention provides a rotatable buffer gripper. The rotatable buffer gripper is structurally characterized in that the gripper can be opened and closed around a Z-direction central axis and can be guided by a guide mechanism with a buffer assembly to linearly move in a reciprocating manner in the Z direction, the linear displacement in the Z direction is buffered by the buffer assembly, and the gripper and the guide mechanism are driven by a rotating mechanism to rotate around the Z-direction central axis; in the Z direction, the guide mechanism is detachably clamped between the output end of the rotating mechanism and the mounting end of the gripper, and can linearly displace along with the movement of the gripper in the Z direction under the guidance of a linear guide rail arranged in the Z direction through a plurality of buffer stand columns coaxially sleeved with buffer springs, so that the gripper is guided, and is buffered through the buffer springs. The grabbing mechanism can adapt to the grabbing action of the grabbing hand to provide a buffering function, enables the grabbing hand to be rotatable, and can adapt to different grabbing angle requirements.

The invention relates to the technical field of soil improvement materials, and provides a soil heavy metal pollution repairing agent based on biomass power plant ash, which mainly comprises surface modified porous biomass power plant ash, polymer modified bentonite, a soil modified repairing agent and clay minerals. The surface modified porous biomass power plant ash is obtained through gamma-aminopropyltriethoxysilane and humic acid modified porous biomass power plant ash clustering, and the polymer modified bentonite is bentonite modified by acrylic acid and sodium carboxymethyl cellulose through a polymerization reaction. The preparation method comprises the steps of pretreatment of biomass power plant ash, liquid nitrogen freezing, freeze drying, porous structure formation, surface modification and the like. The components are mixed, granulated and molded, so that the obtained remediation agent can effectively reduce the bio-availability of heavy metals in soil, reduce the heavy metal absorption of crops and improve the soil environment quality.

The invention relates to the technical field of agricultural fertilizers, in particular to a functional sustained and controlled release fertilizer for regulating and controlling productivity of salinized soil and a preparation method thereof. The slow / controlled-release fertilizer is prepared by compounding a fertilizer matrix, a soil conditioner, a water-retaining agent and humic acid, wherein the fertilizer base body comprises a core material, and the surface of the core material is sequentially coated with a chelating layer and a wall material layer from inside to outside; the core material comprises the following components in parts by weight: ammonium sulfate, monoammonium phosphate, potassium sulfate and trace elements; the chelating layer is sodium ethylene diamine tetracetate; and the wall material layer is sodium alginate. The sodium alginate coating material adopted by the fertilizer can control the fertilizer to be slowly released in soil, and after the fertilizer is completely released in the soil, the adopted coated fertilizer is non-toxic and harmless in the soil and is easy to degrade. The chelating layer is arranged between the core material and the wall material and can be chelated to form a connecting structure of the inner layer and the outer layer, so that the strength of the fertilizer matrix particles is improved, the particles have stability, and the slow release effect is favorably exerted.

The invention provides in-vitro fixing equipment for a balloon catheter for clinical nursing, and belongs to the field of medical instruments. Comprising a mounting box, a fixing rod is fixedly connected to the inner surface of the mounting box, a first buffering assembly is arranged on the outer side of the fixing rod, the first buffering assembly comprises a winding part and a movable part, and the winding part comprises a movable sleeve rotationally connected with the outer surface of the fixing rod. By arranging the first buffer assembly, the guide pipe is wound and stored through the guide frame, the length of the guide pipe on the outer side of the mounting box is within a proper range, meanwhile, the risk that the guide pipe is accidentally pulled can be effectively reduced, the guide pipe is released through movement of the guide frame, the pulling force borne by the guide pipe is buffered and absorbed, and the service life of the guide pipe is prolonged. Therefore, the pulling force transmitted to the balloon catheter can be effectively reduced, the probability that the balloon catheter damages the bladder and the urethra of a patient when the patient accidentally moves can be reduced, and the comfort of the catheterization equipment in the operation process can be effectively guaranteed.

The invention discloses a vertical take-off and landing fixed-wing aircraft, and relates to the technical field of aircrafts. According to the invention, the conversion from a multi-rotor flight mode to a fixed-wing flight mode and from the fixed-wing flight mode to the multi-rotor flight mode can be easily realized. Due to the structural layout characteristics of the aircraft, the safety of the aircraft is guaranteed, and the aircraft can be safely and reliably landed according to the fault degree and urgency of the aircraft even if the aircraft breaks down seriously and only forced landing can be selected. Through multi-rotor-wing assisting control, the forced landing buffering function of the telescopic empennage assembly and the safety protection measure of a protection sponge lining in the manned cabin, various safety modes and measures such as an internal safety protection air bag, an external safety protection air bag and a forced landing parachute of the manned cabin can be selectively used according to the fault degree and urgency of the aircraft; and safe or low-damage forced landing of the aircraft is realized.

The utility model provides a wind power tower drum steel strand steering gear which comprises a tower drum body and a steel strand vertically arranged in the tower drum body and further comprises an I-shaped beam and a buffering sleeve. A first flange and a second flange are arranged on the I-shaped beam; the first flange is fixed on the inner side wall of the tower drum body; the buffer sleeve is wound on the peripheral wall of the steel strand and is used for abutting against the second flange; according to the utility model, the steel strand can be vertically arranged, the steel strand is effectively prevented from being attached to the inner side wall of the tower drum, and the steel strand and the inner wall of the tower drum are prevented from being abraded.

The utility model relates to moisture-proof and mildew-proof 3D (three-dimensional) screen cloth for a carpet, which comprises a 3D screen cloth body, an anti-skid layer is detachably arranged on the lower surface of the 3D screen cloth body, a plurality of support bulges are arranged on the upper surface of the anti-skid layer at equal intervals, and a plush layer is arranged on the upper surface of the 3D screen cloth body. The utility model has the advantages of moisture-proof, mildew-proof, anti-skidding, breathable, comfortable, beautiful and the like, and is a very practical carpet material.

The invention provides a multi-sensing-value double-tipping-bucket type rainfall sensor, and relates to the field of rainfall sensors. The multi-sensing-value double-tipping-bucket type rainfall sensor comprises a collecting device, a supporting device, a first measuring device and a second measuring device, the collecting device is arranged at the top end of the supporting device, the second measuring device is arranged at the top end of the supporting device, the collecting device comprises a shell, a water bearing device is arranged at the position, close to the upper portion, of the inner side wall of the shell, and the water bearing device is arranged on the inner side wall of the shell. The bottom end of the inner side wall of the water receiver is rotationally connected with a filter screen, and the side wall of the bottom end of the filter screen penetrates through the middle of the bottom end of the inner side wall of the water receiver and is in threaded connection with a cleaning and detaching nut. By arranging the collecting device, equipment blockage and influence on detection data caused by long-time use of the water receiver are avoided, by arranging the supporting device, it is guaranteed that the whole device is in an absolute horizontal state before detection, the first measuring device can play a good role in buffering rainwater, the measurement resolution is improved, and by arranging the second measuring device, the detection accuracy is improved. And the measurement precision under the condition of heavy rainfall (heavy rainfall intensity) is effectively improved.

The invention relates to the field of spindle boxes, and discloses a shockproof high-precision spindle box structure which comprises a spindle box body. A buffering assembly is arranged at the bottom end of the main spindle box body, first buffering springs are evenly installed at the bottom end of the main spindle box body, spring seats are installed at the bottom ends of the first buffering springs, auxiliary assemblies are arranged at the top ends of the spring seats, and connecting round rods are fixedly installed between the spring seats. Sliding seats are slidably mounted on one sides of the spring seats, the sliding seats are connected through second buffer springs, and connecting rods are rotatably mounted at the top ends of the sliding seats; by arranging the auxiliary assembly, the damping protection effect of the device on the main spindle box body is enhanced, the springback speed of a first buffer spring is reduced, resetting of the main spindle box body is smoother and more stable, then the working precision of the main spindle box body is improved, and the quality of machined products is improved.

The invention relates to the technical field of inspection robots, in particular to a rail type inspection robot capable of automatically adjusting clamping force, which comprises a camera and an I-shaped rail, a mounting plate is arranged below the I-shaped rail, and two walking devices are rotationally arranged on the upper side of the mounting plate; and the walking device comprises a bottom plate rotationally connected to one end of the upper side of the mounting plate, two side plates are fixed to the two sides of the bottom plate, and supporting shafts are rotationally connected to the upper ends of the two side plates in a penetrating mode. Through the guide mechanisms on the two sides of the walking device, when the walking device moves, the multiple guide wheels of the guide mechanisms on the two sides roll along the side face of the I-shaped rail, the multiple guide wheels of the two guide mechanisms are attached to the surfaces of the two sides of the I-shaped rail correspondingly, and transverse supporting force is provided for the walking device during moving; when the walking device moves along the linear section of the I-shaped rail, the walking device can be prevented from generating transverse deviation, and the moving stability of the walking device is improved.

The utility model provides a reusable dinner plate packaging box which comprises a bottom plate, the left side of the bottom plate is connected with a first folding part, and the right side of the bottom plate is connected with a second folding part. The second folding part comprises a right vertical plate rotationally connected with the bottom plate, a right panel rotationally connected with the right vertical plate, a right supporting plate rotationally connected with the right panel and a right connecting plate rotationally connected with the right supporting plate, a right inserting part is arranged at the tail end of the right connecting plate, and a first inserting opening allowing the right inserting part to be inserted is formed in the right vertical plate; the bottom plate is provided with a second insertion opening allowing the right insertion part to be inserted therein, the right supporting plate is provided with a first containing window, and the first folding part is provided with a second containing window. When the right inserting part is inserted into the first inserting opening, the second folding part is bent and rolled up towards the bottom plate so that the right vertical plate, the right panel, the right supporting plate and the right connecting plate can form a quadrilateral structure, and the first containing window and the second containing window are correspondingly arranged so that the right portion and the left portion of the dinner plate can be inserted into the first containing window and the second containing window respectively; when the right inserting part is inserted into the second inserting opening, the right vertical plate is flush with the bottom plate, so that the surface of the right supporting plate faces upwards, and then the dinner plate can be vertically placed in the first containing window.

The invention belongs to the field of life, and particularly relates to a thermos bottle with visible water storage capacity. The thermos bottle comprises a shell and an inner container arranged inside the shell. A base capable of vertically moving is mounted at the bottom of the shell, an elastic airbag is fixedly connected between the upper end of the base and the lower end of the inner container, a vertical strip opening is hermetically connected onto the side wall of the shell, a transparent tube is fixedly connected into the strip opening, the lower end of the transparent tube is communicated with the elastic airbag, and a piston block is hermetically connected into the transparent tube. The quantity of water in the thermos bottle can be known by observing the position of a piston block, a piezoelectric ceramic is used for power generation when water is injected, an LED (light-emitting diode) lamp in the piston block can emit light, the quantity of the water in the thermos bottlecan be known conveniently by people, and scalding is avoided. In addition, by the aid of an annular air cushion, when the thermos bottle falls, a good buffering function can be achieved, and impact onthe inner container is reduced.

The invention discloses a fender buffering structure of a polar icebreaker. The fender buffering structure comprises a fender buffering structure body composed of an outer-layer steel structure and an inner-layer elastic structure. The outer-layer steel structure comprises a fender top plate, fender side plates, fender front and rear end coamings, end limiting cushion blocks, middle limiting cushion blocks and inner limiting toggle plates, the fender top plate, the fender side plates, the fender front and rear end coamings and the hull outer plate form a closed structure, the end limiting cushion blocks are arranged at the two ends of each fender side plate, the middle limiting cushion blocks are arranged in the middles of the fender side plates, and the inner limiting toggle plates are arranged in the middle of the fender side plates. A plurality of internal limiting toggle plates are arranged between the fender side plate and the hull outer plate, and the inner-layer elastic structure is limited through the end limiting cushion blocks, the middle limiting cushion blocks and the internal limiting toggle plates. The device is suitable for ship-ice and ship-ship collision scenes in a polar region complex environment, has a good buffering effect and can provide a good protection effect on a ship body; a fender buffer structure protection area is flexibly arranged according to ship design requirements and functions; and the low-temperature resistance meets the long-term use requirements in a low-temperature environment.

The invention relates to the field of polyurethane resin, and particularly discloses 3D printing light-cured polyurethane resin as well as a preparation method and application thereof. The 3D printing light-cured polyurethane resin is prepared from the following raw materials in parts by weight: 60-80 parts of a polyurethane acrylate prepolymer, 15-25 parts of a diluting monomer, 8-12 parts of a dispersing filler, 6-8 parts of a photoinitiator and 3-5 parts of a stabilizer, the polyurethane acrylate prepolymer is prepared from aliphatic diisocyanate, trimethylolpropane diallyl ether, dipentaerythritol hexaacrylate, o-phenyl phenoxyethyl acrylate and a catalyst, and the polyurethane acrylate prepolymer is prepared from the aliphatic diisocyanate, the trimethylolpropane diallyl ether, the dipentaerythritol hexaacrylate, the o-phenyl phenoxyethyl acrylate and the catalyst; the polyurethane resin prepared by the invention has relatively good flexibility and elasticity, low shrinkage rate and low possibility of deformation, and can be applied to products with complex structures and high dimensional requirements, such as soles and underwear mold cups prepared by 3D printing.