16results about How to "High energy absorption efficiency" patented technology

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 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 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 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 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 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 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.