32results about How to "High energy absorption efficiency" patented technology

The invention discloses a rotational symmetry type oblique pressing resisting paper folding pipe collision energy absorption box, belongs to the technical field of collision energy absorption boxes, and solves the problems that an existing collision energy absorption box is large in initial collision load and low in energy absorption efficiency. The energy absorption box comprises at least one energy absorption box body, the energy absorption box body comprises a wall body, a plurality of energy absorption units are arranged on the wall body in the surrounding direction, and each energy absorption unit comprises a first polygonal paper folding unit and a second polygonal paper folding unit which are the same in structure. The adjacent first polygonal paper folding units and second polygonal paper folding units are alternately arranged in the forward direction and the backward direction correspondingly, and the two first polygonal paper folding units located on the diagonal line of the energy absorption box body are rotationally and symmetrically arranged. Through the diagonal staggered design, the top end corner making contact with the pressure head provides a supporting effect, the two side faces of the top end corner jointly bear loads and are sunken inwards, and therefore deformation occurs according to a preset complete diamond deformation mode with high energy absorption efficiency, and the oblique pressure resisting capacity is provided.

The invention relates to the technical field of nonferrous metal material manufacturing, in particular to an efficient cost-reducing preparation method of a high-heat-resistance, high-conductivity and high-strength copper-chromium-niobium material, which comprises the following steps: S1, powder screening; s2, electron beam printing, including entity printing, outer contour printing, thermal compensation scanning and heat preservation; the preparation method of the copper-chromium-niobium material is developed on the basis of reducing the cost; the powder with the larger particle size range is used for reducing the raw material cost, the higher layer thickness is used for reducing the printing time cost, thermal compensation scanning of the outer contour is used for optimizing the surface of a part to reduce the subsequent machining cost, thermal compensation heat preservation after printing is completed is used for reducing the cost of subsequent recharging heat treatment, and the heat preservation efficiency is improved. The tensile strength of the prepared blank is larger than 380 Mpa, the hardness is larger than 110 HB, the conductivity is larger than 47 Ms / m, the process is simple and stable, and batch production is easy.

The invention relates to the technical field of battery packs, and discloses a bottom protection structure for a battery pack and the battery pack, the bottom protection structure for the battery pack comprises a liquid cooling plate, a bottom protection plate and a buffer layer; the bottom of the liquid cooling plate comprises a non-flow channel area and a protruding flow channel area; the bottom protection plate is arranged at the bottom of the liquid cooling plate, and the bottom protection plate and the liquid cooling plate are arranged at intervals; the buffer layer is arranged between the liquid cooling plate and the bottom protection plate, and the bottom of the buffer layer abuts against the bottom protection plate; in the flow channel area, the top of the buffer layer abuts against the liquid cooling plate; according to the present invention, the impact force can be effectively absorbed and dispersed when the different regions of the battery pack are impacted so as to ensure that the battery cells in the battery pack are not extruded when the battery pack is subjected to the external force effect, such that the battery pack can be prevented from being damaged, and the battery pack is prevented from being damaged. And the protection level of the battery cells in the battery pack is improved, and the overall safety of the battery pack is ensured.

This utility model provides a car bumper with a layered energy-absorbing structure, relating to the field of automotive parts technology. Its features include a fixed bracket, a protective plate fixedly mounted on the front side of the fixed bracket, and connecting ear plates symmetrically arranged on both sides of the fixed bracket. The fixed bracket is a bent bracket, and a groove is provided between the upper part of the fixed bracket and the protective plate. The groove is filled with buffer rubber. A hydraulic damper is fixedly mounted between the connecting ear plates and the protective plate. A license plate frame is fixedly mounted at the middle of the front side of the protective plate. The end of the license plate frame is U-shaped, protruding to the front side of the protective plate, and the width of the front side of the license plate frame is greater than the width of the rear side. This utility model, through the bent structure of the fixed bracket, the buffer rubber in the groove, and the hydraulic damper, forms a multi-stage energy-absorbing system, effectively absorbing collision energy, improving safety, adapting to collision loads at different angles, and improving energy absorption efficiency.

This invention belongs to the technical field of aero-engine experimental equipment, and discloses a high-speed rotating test chamber protection system, including a canopy, an upper protective plate, a radial buffer layer, a radial containment layer, and a base plate. The radial containment layer is cylindrical, and the canopy, radial containment layer, and base plate form the test chamber. The upper protective plate is detachably connected to the canopy. The radial buffer layer is cylindrical and located below the upper protective plate, with its bottom contacting the base plate. The radial buffer layer is used for energy absorption, debris retention, and preserving the debris ejection path. This invention achieves the functions of energy absorption, debris retention, and preserving the debris ejection path by setting a radial buffer layer inside the test chamber, facilitating the replacement and removal of retained debris. When the radial buffer layer is penetrated by debris, the radial containment layer can further reduce the kinetic energy of the debris while resisting the radial ejection of high-speed debris, protecting the safety of test personnel. Furthermore, each protective cylinder can be directly replaced if damaged.

The invention provides an efficient prediction method for collision performance of an electric vehicle power battery pack stiffening beam structure, which comprises the following steps of: establishing a basic closed beam structure model with four section configurations by adopting a typical working condition of quasi-static compression, carrying out preliminary sampling through a simulation analysis method, and collecting a collision performance model of the stiffening beam structure under the conditions of different sizes and wall thicknesses of different configurations; and collision safety key indexes such as peak cross-section force and specific energy absorption under a quasi-static compression working condition. Data obtained through simulation analysis is trained and optimized through an MR-LVGP model, and then indexes such as peak cross section force and specific energy absorption of the four configurations under different height-width ratios and thicknesses are obtained. Compared with a traditional simulation analysis method, the method for predicting the corresponding indexes through MR-LVGP model fitting has the advantages of being high in precision and short in consumed time, the efficiency of vehicle collision performance design can be improved, and repeated analysis work can be reduced.

The utility model discloses a bridge anti -collision device based on the coupling of shear hardening and negative poisson's ratio effect, including a plurality of energy -absorbing box and a plurality of fixed ring, a plurality of energy -absorbing box evenly is placed in the outside of pier and is closely spliced between adjacent energy -absorbing box, a plurality of fixed ring is evenly placed on the outer ring surface of pier and is in the embrace shape, and the fixed ring between adjacent is closely connected to be connected into a whole around pier, and the energy -absorbing box is buckled on the outside of fixed ring, and the bolt for fixing energy -absorbing box and fixed ring is inserted between energy -absorbing box and fixed ring from top to bottom, the utility model relates to building safety protection technical field, through the collaborative energy -absorbing mechanism of the introduction of negative poisson's ratio effect and shear hardening effect, the bridge anti -collision device of structure stable, energy -absorbing efficient has been constructed, and simultaneously through the modularization and the bolt type design, the quick dismounting and partial replacement function of device have been realized, and maintenance difficulty and cost have been reduced, have good engineering applicability and popularization prospect.

The application discloses a guardrail plate mounting support structure and relates to the technical field of highway protection facilities. The guardrail plate mounting support structure comprises a top plate, side plates, mounting plates and energy-absorbing pieces. The top plate is fixedly arranged at the top end of a stand column. Two side plates are symmetrically arranged along the top plate. Each side plate is fixedly connected with the bottom end of the top plate. Each side plate is fixedly provided with a mounting hole. The mounting plates are correspondingly arranged with the side plates. Each mounting plate is fixedly arranged on the corresponding side plate. Each mounting plate is fixedly provided with a connecting hole. The energy-absorbing pieces are fixedly arranged between the two side plates. The energy-absorbing pieces can absorb the impact force generated when a vehicle collides with the guardrail. The application has the energy-absorbing effect of the highway guardrail.

The application belongs to the technical field of advanced manufacturing and mine machinery equipment, and discloses a preparation method of a full-negative Poisson ratio energy-absorbing component, which solves the problem that the existing energy-absorbing component design cannot meet the high energy-absorbing demand under extreme impact working conditions. The method comprises the following steps: (1) full-parameterization design of a macro-negative Poisson ratio structure based on multi-target Bayesian optimization; (2) preparation and process parameter simulation optimization of a micro-negative Poisson ratio steel forming powder; (3) laser additive-warm subtractive composite preparation of a full-negative Poisson ratio porous structure component; and (4) post-heat treatment of the full-negative Poisson ratio porous structure component and macroscopic and microscopic toughening regulation. The application greatly improves the energy-absorbing efficiency, breaks through the bottleneck of high-precision preparation of a complex interconnected porous structure, and realizes the optimal balance of full-parameterization design and multi-target performance.

The application discloses a preparation method of a foam calcium phosphate-based energy-absorbing coating for extreme dynamic load protection, and belongs to the technical field of energy-absorbing coatings. The method comprises the following steps: S1, polyurethane sponge is respectively immersed in anhydrous ethanol, a NaOH solution and a dopamine solution for treatment, and then freeze-drying is performed; S2, the prepared polyurethane sponge is immersed in a sodium alginate gel solution to construct a dried gradient gel coating precursor; S3, the dried gradient gel coating precursor is immersed in a calcium phosphate deposition slurry to obtain a foam calcium phosphate coating precursor through an electric field orientation deposition method; and S4, a foam calcium phosphate-based energy-absorbing coating is prepared through a gradient sintering method. The application further provides the foam calcium phosphate-based coating prepared by using the above preparation method and application thereof. The preparation method of the foam calcium phosphate-based energy-absorbing coating for extreme dynamic load protection solves the problems of weak interfacial bonding strength, poor energy-absorbing and shock-absorbing effect and inability to resist explosion shock waves of existing explosion-proof coating materials and aerogel materials in an extreme dynamic load environment.

The invention relates to a bumper assembly and a vehicle. The bumper assembly comprises a bumper skin, a bumper framework and a skin reinforcing piece arranged between the bumper skin and the bumper framework, the bumper framework comprises a framework body and a first buffering part protruding out of the framework body in the direction away from the bumper skin, and the first buffering part is provided with a first cavity with an opening; the skin reinforcer comprises a reinforcer body and a second buffer part protruding out of the reinforcer body, the second buffer part at least partially extends into the first cavity through the opening and comprises an abutting part abutting against the inner wall of the first cavity and capable of moving relative to the inner wall, the second buffer part is provided with a second cavity, and the second cavity is provided with an opening. And a weakening hole is formed in the wall of the second cavity. According to the bumper assembly, the strength of the bumper can be weakened, energy generated during collision is effectively absorbed, the timely buffering effect is achieved, and therefore the safety performance of a vehicle is improved.

The invention discloses a heavy anti-collision early warning vehicle which comprises an elastic energy absorption anti-collision panel, a compartment type energy absorption box, a friction energy dissipation bottom plate, a mode conversion driving assembly and an early warning mechanism. The elastic energy absorption anti-collision panel is assembled at the front end of the compartment type energy absorption box, and the compartment type energy absorption box comprises liquid compartments and cavity compartments which are arranged in a staggered mode. The friction energy dissipation bottom plate is fixed to the bottom of the compartment type energy absorption box. The mode conversion driving assembly is assembled in a fixing cavity formed in the bottom of the compartment type energy absorption box and can be used for supporting in the anti-collision working state and lifting the compartment type energy absorption box to be hauled in the hauled state. The early warning mechanism is assembled at the top of the compartment type energy absorption box; through the combined design of the elastic energy absorption anti-collision panel, the compartment type energy absorption box and the friction energy dissipation bottom plate, multi-stage collision buffering is achieved, and vehicle intrusions of different speeds and weights can be coped with; the early warning mechanism is arranged, so that an early warning signal can be sent out in time to remind a driver to pay attention, and the accident risk is further reduced.

The invention relates to a photovoltaic panel erecting structure used on a road, and belongs to the field of photovoltaic panel installation technology, the photovoltaic panel erecting structure comprises a base part, a photovoltaic panel part movably connected to the base part and a panel body orientation adjusting part connected to the photovoltaic panel part, the photovoltaic panel part can be adjusted at the top of the base part in a steering mode, and the panel body orientation adjusting part is connected to the photovoltaic panel part. The panel body orientation adjusting part is connected with the base part and is used for controlling the rotation orientation of the photovoltaic panel part; the foundation part comprises a plurality of supporting columns arranged on the edge of a road, a truss structure connected between the supporting columns and a sunshade plate connected to the truss structure, and the photovoltaic panel parts are connected to the truss structure at intervals. According to the photovoltaic panel erecting structure, a wide and flat road environment can be fully utilized to serve as an installation space of the photovoltaic panel, the structure for installing the photovoltaic panel is convenient to adjust, and the solar energy obtaining efficiency of the photovoltaic panel is improved.

The invention discloses a substrate structure and a substrate surface treatment method and device.The method comprises the steps that a transparent inorganic substrate is provided, and the roughness Ra of the to-be-treated surface of the substrate ranges from 0.1 micrometer to 20 micrometers; an energy absorption layer is at least formed on the to-be-treated surface of the substrate, the energy absorption layer completely covers the micro protrusions and the micro pits on the to-be-treated surface of the substrate, and the energy absorption coefficient of the energy absorption layer is larger than that of the substrate; ultra-short pulse laser is adopted to irradiate the substrate, so that phase explosion happens to the energy absorption layer, multi-photon absorption happens to the micro-protrusion area, and under the action of phase explosion and multi-photon absorption, the laser conducts cold cutting on the micro-protrusions; wherein the wavelength lambda of the ultrashort pulse laser ranges from n * Ra / 10 to n * Ra, and n is the refractive index of the substrate. According to the method, under the combined action of phase explosion and multi-photon absorption, the micro-protrusions are subjected to cold cutting through laser, so that the micro-protrusions on the surface to be treated are stripped, and the substrate structure is not damaged.

The present invention belongs to the field of passenger car protection structures, and specifically is a passenger car driver collision protection structure. The structure includes a cab structure, a frontal collision driver protection structure, a left-side collision driver protection structure, and a right-side collision driver protection structure, and each structure and each component are connected by welding. Each component includes a plurality of dispersed anti-collision beams and energy absorption box structures, wherein the anti-collision beams are made of thin-walled steel pipes with corrugated cross-sections, and the energy absorption box is made of thin-walled steel pipes with variable cross-sections, and the energy absorption characteristics are improved by reasonably setting arc-shaped induction grooves and "V-shaped" energy absorption grooves. By dispersing and arranging the driver protection structure in multiple directions, reasonably matching the structural stiffness, and optimizing the energy absorption box structure, the energy absorption rate and energy absorption efficiency are synchronously controlled to minimize the transmission of collision energy into the cab, thereby achieving comprehensive protection of the driver's safety.

A dynamic vibration absorber for a rail and a preparation method thereof, the vibration absorber comprising dynamic vibration absorbers arranged on both sides of the rail, the dynamic vibration absorber comprising a first mass unit, a second mass unit and a third mass unit, the first mass unit and the second mass unit being located above the third mass unit, the first mass unit being located on a side away from the rail waist, the second mass unit being located on a side close to the rail waist, the third mass unit being located on a side close to the rail bottom, the first mass unit, the second mass unit and the third mass unit being vulcanized into one through a viscoelastic unit; therefore, the present invention optimizes the resonance frequency, improves the transfer rate of vibration energy from the rail to the dynamic vibration absorber, and enhances the energy dissipation capacity through the structural setting and parameter optimization design between each mass unit and the viscoelastic unit, and also has the advantages of simple preparation and installation process.

The utility model relates to an energy absorption stand column and an airplane, and the energy absorption stand column comprises a base plate and two side plates which are oppositely arranged. The substrate extends along a first direction. The two opposite side plates are connected with the two sides, in the second direction, of the base plate respectively, the side plates extend in the first direction, and the first direction intersects with the second direction. The side plate is provided with an energy absorption notch penetrating through the thickness of the side plate. According to the energy-absorbing stand column, the energy-absorbing notches penetrating through the thickness of the side plates are formed in the side plates, and when the energy-absorbing stand column is subjected to impact loads during falling and collision, the energy-absorbing notches of the side plates can be deformed or damaged firstly, and part of impact energy is consumed. Afterwards, deformation expands to other areas, so that the whole energy absorption stand column deforms step by step, impact energy is absorbed in a staged mode, and the energy absorption efficiency is improved.

The present invention provides a collision energy absorbing box, comprising an upper flange, a composite energy absorber and a lower flange arranged in sequence from top to bottom; the composite energy absorber comprises a mixed cross-section corrugated pipe and a three-level honeycomb core arranged inside the mixed cross-section corrugated pipe; the three-level honeycomb core is sequentially provided with a first-level honeycomb core, a second-level honeycomb core and a third-level honeycomb core from top to bottom; the first-level honeycomb core, the second-level honeycomb core and the third-level honeycomb core are coaxially arranged; the first-level honeycomb core and the second-level honeycomb core are formed by honeycomb units spliced ​​together; the honeycomb unit comprises a plurality of origami units from top to bottom, and the origami units are sequentially stacked from top to bottom to form the honeycomb unit; the honeycomb unit has six side portions, and the honeycomb units are spliced ​​together by overlapping the side portions. The application of this technical solution can realize a collision energy absorbing box with a simple structure that can adapt to multi-angle impacts.

The application discloses a protection plate assembly, a battery assembly and a vehicle. The protection plate assembly is arranged at the bottom of a battery pack. The protection plate assembly comprises at least one of a scale protection layer, a sandwich metal layer, a honeycomb structure layer and a composite material layer. The scale protection layer, the sandwich metal layer, the honeycomb structure layer and the composite material layer are sequentially connected. The honeycomb structure layer comprises a plurality of unit cells. The plurality of unit cells are arranged in an array in the width direction, the thickness direction and the length direction of the protection plate assembly. The hierarchical energy absorption structure of the protection plate assembly can effectively expand the conduction area of impact energy and realize continuous dissipation of energy, significantly improve the energy absorption efficiency of the protection plate assembly under impact, avoid a concentrated impact path, enhance the protection of the battery pack, and the structure of the honeycomb structure layer is better in compression resistance and rebound characteristics, the density of the honeycomb layer is increased, and lateral deformation is inhibited.

The utility model relates to the field of structural design of rotating platforms, in particular to a single-shaft non-magnetic table anti-impact device which comprises a base, a connecting table, a shell, a sliding block, a first spring, an electric push rod and a rotating frame. Symmetrical sliding blocks are slidably connected to the two sides of the top of the connecting table in an embedded mode, first springs are symmetrically connected to the sliding joints of the two sides of the sliding blocks and the connecting table, an electric push rod is installed in the middle of the top of the connecting table, and rotating frames are rotatably connected to the tops of the sliding blocks on the two sides. First-stage damping is formed through the balls and the second springs between the base and the connecting table, second-stage transverse buffering is formed through the sliding blocks and the first springs, and a three-dimensional anti-impact system is formed. The motor drives the gear to perform meshing transmission to drive the rotating shaft to rotate stably, the rigid connection between the expansion disc and the workbench ensures the angle adjustment precision, and the non-magnetic environment requirement of the magnetic sensitive equipment is met.

This utility model discloses a modular precast concrete wall-type guardrail, comprising a guardrail body with a combined buffer structure. The guardrail body, from the outside to the inside, is sequentially composed of a high-strength concrete protective layer, a porous concrete buffer layer with varying porosity, a closed-cell foam metal energy-absorbing core layer, and their symmetrical structure. The bottom of the guardrail body has a wedge-shaped chamfered base with a self-draining system and pre-embedded bolt mounting holes. The top two sides of the guardrail body have mortise and tenon joint structures, including mating tenons and mortises. A symmetrically arranged embedded lifting structure is located at the center of the top of the guardrail body, comprising a reinforced steel frame precast integrally with the guardrail body and detachable lifting rings. This utility model combines high-strength impact resistance with buffer energy absorption characteristics, enabling rapid construction through standardized precast components. It also possesses good drainage and structural stability, making it suitable for engineering fields requiring high-level protection, such as highways and bridges.

The present invention discloses a polyurethane composite material for multi-use comfort footwear and a preparation method thereof, and belongs to the technical field of polyurethane composite materials. The present invention adopts solid ball shear thickening liquid capsules and hollow ball expandable beads to perform virtual and real two-phase reinforcement of polyurethane foam. Under the premise of ensuring that the density of the foam material remains basically unchanged, it can not only improve the mechanical properties of the foam composite material but also enhance its energy absorption efficiency, and improve the stress sensitivity, and have a certain damping effect on the external load. At the same time, the reaction occurs at room temperature and can be cured at room temperature, which reduces energy consumption and is conducive to large-area application. The two-phase reinforced polyurethane foam composite material of the present invention has an energy absorption efficiency several times higher than that of conventional polyurethane foam, and the energy absorption can reach 57.2162KJ / m 3 , compression strength reaches 3.0888MPa, maintaining apparent density of 0.311g / cm 3 ‑0.351g / cm 3 .

This invention relates to the field of unmanned aerial vehicle (UAV) technology, specifically to an omnidirectional crash-resistant UAV with a series multi-level composite buffer structure. The UAV includes a flight control platform with a cargo box connected to its bottom. Support frames are connected to both sides of the cargo box, and rotors are mounted on the top of each support frame. Each support frame includes an X-shaped mounting bracket with two upper extensions and two lower extensions, the upper extensions being located above the lower extensions. The rotors are connected to each upper extension, and ground-contact pads are connected to each lower extension. An upper shock-absorbing buffer device is positioned between the upper extensions and the rotors. This invention utilizes the upper shock-absorbing buffer device on the upper extensions to absorb and buffer the powerful impact energy from the ground when the UAV contacts the ground, thereby protecting valuable onboard equipment and cargo.

The invention belongs to the technical field of sighting telescope, and particularly relates to a thermal imaging sighting telescope and firearm, the thermal imaging sighting telescope comprises an objective lens assembly and a machine body assembly, the machine body assembly comprises a shell and a machine core arranged in the shell, the objective lens assembly comprises an objective lens barrel and an infrared lens arranged in the objective lens barrel, the objective lens barrel is arranged in the shell, and the infrared lens is arranged in the shell. One end of the objective lens barrel is rigidly connected with the movement, and the other end of the objective lens barrel is connected with the shell through an elastic damping device. One end of the objective lens barrel is rigidly connected with the movement to ensure that the objective lens barrel and the movement do not move relatively, so that the integrity of an optical system and the imaging stability are ensured, and image blurring caused by optical axis deviation is avoided; the other end of the objective lens barrel is connected with the shell through the elastic damping device, elastic deformation can occur and energy can be dissipated when impact loads generated by falling or recoil force and the like are borne, and therefore loads transmitted to a machine core and an infrared lens are greatly attenuated, and the impact resistance reliability of a product is improved.

The present invention discloses a car rear seat frame capable of collapsing and absorbing energy. By setting at least one of a backrest frame and a cushion frame as a collapsing and absorbing energy frame with a collapsing and absorbing energy structure, the frame can absorb collision energy by deformation in a stowed state, so that the rotating shaft will not be deformed and broken due to excessive impact force in a rear collision of the car, thereby solving the rear collision safety hazard of the car rear seat frame; and because the rear collision energy can be absorbed, the strength requirement for the car rear seat frame is reduced, so the present invention can also have both low gravity and cost. In addition, the present invention adopts a transverse member, two longitudinal members, a force-conducting protrusion and a structural weakening point to form a collapsing and absorbing energy structure of the collapsing and absorbing energy frame, so that the car rear seat frame absorbs collision energy by deformation in a stowed state.

The utility model discloses a solar drying machine which comprises a box body, a base is arranged on the top of the box body, the base is rotatably installed on the top of the box body, the base is of a disc-shaped structure, an inner base is arranged on the base, the inner base is of a disc-shaped structure, and the inner base is rotatably installed on the base in an embedded mode. The base is an electric rotating disc, the inner seat is an electric rotating disc, the base and the inner seat rotate independently, and the base and the inner seat can rotate in the same direction or in the same direction so as to adapt to the change of the angle of the sun, and therefore corresponding angle adjustment can be conducted. According to the utility model, through the arrangement of the light-gathering plate, the light-gathering plate can gather light in a direction with relatively high illumination intensity in an environment, so that the local light intensity is improved, and the solar panel obtains stable conversion efficiency; and meanwhile, when the angle of the sun changes, the base and the inner seat can perform appropriate angle adjustment, so that the situation that the solar panel needs to be manually and synchronously adjusted in the prior art is avoided, and the energy absorption efficiency of the solar panel is improved.

The invention discloses a smart agricultural monitoring management system based on ecological environmental protection, and relates to the technical field of agricultural monitoring management, and the technical scheme is that the smart agricultural monitoring management system comprises a mounting rack, the top of the mounting rack is provided with a solar panel shell, the upper part of the solar panel shell is fixedly connected with a solar panel, and the interior of the solar panel shell is fixedly connected with a transmission shell; a first motor is arranged on one side of the transmission shell, a threaded rod is arranged at the output end of the first motor, and a transmission block is in threaded connection with the threaded rod. The first gear rotates to drive a second transmission wheel to rotate, and the second transmission wheel rotates to drive an air blowing fan blade arranged in the cleaning shell to rotate, so that air flow is synchronously driven to blow to the surface of the solar panel in the moving process of the baffle, dust and small-size impurities on the surface of the solar panel are effectively cleaned, and a physical covering layer is removed.

This application discloses a flexible guardrail device for new energy vehicles, belonging to the field of flexible guardrails. It includes: a mounting frame with a rectangular frame structure; a crossbar fixed in the middle section of the mounting frame; a buffer plate installed below the mounting frame; a sealed cavity inside the buffer plate; an embedded plate protruding from the bottom of the mounting frame, embedded within the sealed cavity; a buffer spring installed within the sealed cavity; a flexible buffer air cushion installed at the bottom of the buffer plate; fixing components installed at the four corners of the top of the mounting frame; and fixing components symmetrically installed on the crossbar. The beneficial effect of this application is that it provides a flexible guardrail device for new energy vehicles, effectively preventing deformation or damage to the battery box due to localized stress, achieving multi-directional impact absorption, providing progressive buffering during collisions, reducing instantaneous impact on the bottom of the battery box, and protecting the delicate internal structure of the battery.

This utility model relates to the field of geotechnical engineering support technology, specifically to a multi-stage energy-absorbing anchor tray, comprising an anchor, a matrix layer, a perforated layer, a honeycomb layer, and a memory layer. The matrix layer, perforated layer, honeycomb layer, and memory layer are sequentially fitted onto the anchor from top to bottom along the anchor's extension direction and are mutually fixed. The matrix layer, perforated layer, and honeycomb layer sequentially absorb impact energy and then transfer it to the memory layer, which can recover its original shape after impact. The multi-stage energy-absorbing anchor tray provided by this utility model can achieve dynamic energy absorption through the synergistic effect of the four layers. Simultaneously, the memory layer can recover its original shape after impact to achieve structural self-recovery, improving overall durability and reliability. The synergistic energy absorption efficiency of the four layers is effectively improved, and it can also provide a continuous and variable support resistance, preventing ductile fracture of the anchor under high-cycle fatigue effects, while reducing the risk of anchor tray breakage during use.

The utility model discloses a robot collision protection device with buffering and energy absorbing functions, which relates to the technical field of robot collision protection devices and comprises a box body, and buffering plates are slidably connected to the front side and the rear side of the upper portion of the box body. According to the robot collision protection device with the buffering and energy absorbing functions, the supporting rod, the sliding block, the first connecting rod, the second connecting rod, the first compression spring, the air cylinder, the piston, the one-way air inlet valve, the one-way air outlet valve, the exhaust spring pipe, the connecting pipe and the silencer are matched; the supporting plate presses down the driving connecting rod to push the sliding block to slide reversely along the supporting rod, so that the first compression spring is compressed, and collision impact force is absorbed through elastic deformation. Meanwhile, the sliding block is in linkage with the piston to reciprocate in the air cylinder, gas flow is controlled through the one-way valve, mechanical energy is converted into gas pressure energy, the gas pressure energy is exhausted through the exhaust spring pipe and the silencer, a mechanical-gas double-channel energy dissipation mechanism is formed, and the energy absorption efficiency is remarkably improved.