838 results about "Shock resistance" patented technology

The invention relates to the technical field of electric equipment cooling, and particularly discloses a micro-channel liquid cooling circulation system heat dissipation device with impact resistance. A transition bin; the plurality of groups of micro-channel units are distributed in the bracket at equal intervals; the heat conduction units are embedded between the adjacent micro-channel units; and the circulating adjusting unit is arranged in the transition bin. The circulation adjusting unit can be switched among three states according to heat dissipation requirements, so that the functions of mixed temperature equalization, partitioned heat dissipation and intermittent slow flow of cooling liquid are achieved; in the first state, thermal stress impact and fluid pulsation caused by local temperature difference are effectively reduced, and the thermal stability and thermal impact resistance of the system during continuous high-load operation are enhanced; in the second state, the peripheral flow path can be suspended, and the cooling liquid is concentrated in the central core area to enhance heat dissipation; and in the third state, the cooling liquid is temporarily detained in the micro-channel unit, the heat exchange time is prolonged, and the mutability of fluid flowing is slowed down.

The invention provides a light and heat-dissipating aerospace small-sized calibration lamp mounting seat, which relates to the technical field of aerospace optical small-sized calibration lamp structure fixation, and comprises a substrate mounting seat module, a conductive module, an insulating module and a heat conduction module. The conductive module comprises two chamfered semi-cylindrical conductive copper blocks and two wires with soldering lugs; the insulating module comprises an insulating polyimide isolating layer; the heat conduction module comprises a heat conduction insulation pad which is installed above two copper blocks, the positive electrode and the negative electrode of the two copper blocks are separated through an insulation polytetrafluoroethylene isolation layer, and the semi-cylindrical conductive copper blocks, the polytetrafluoroethylene isolation layer and the substrate installation base are positioned through pin holes. The soldering lug wire is installed on the left semi-cylindrical conductive copper block and the right semi-cylindrical conductive copper block in a pressing mode through top screws. The structure distribution is friendly, the anti-seismic performance is good, a good heat dissipation way is provided for the calibration lamp, and an effective and feasible implementation scheme is provided for fixing the small aerospace calibration lamp.

The invention relates to a self-adaptive force output and energy consumption bridge vibration and vibration control inerter tuning device, and belongs to the technical field of vibration control. Comprising a roll shaft support, a spring rod, a main inerter element, a box chamber main body, a secondary inertia flywheel, a flow guide pipe, a transmission connecting rod and a flow baffle, the main inerter element penetrates through and is arranged in the box chamber main body, the outer end of the main inerter element is connected with the spring rod, the spring rod is connected with the roll shaft support, and the roll shaft support is respectively fixed with the bottom surface of a main beam and the top of a bridge pier; in addition, the flow guide pipe is arranged in the box chamber body, a flow baffle and a transmission connecting rod are further arranged in the flow guide pipe, and the transmission connecting rod is further connected with a secondary inertia flywheel. The damping device is achieved through a hydraulic mechanism, and the damping device with the self-adaptive inerter coefficient is formed through linkage of the inerter devices in the main box chamber and the auxiliary box chamber, so that the purposes of changing the inerter coefficient in real time and damping are achieved. The shock resistance, the transmission efficiency, the energy consumption effect, the structural rigidity and the stability of a vibration reduction system can be improved.

The invention provides a time domain and frequency domain combined impact resistance analysis method and device for a ship stern tube, and the method comprises the steps: building geometric models of all parts in the stern tube through three-dimensional modeling software according to an actual engineering drawing of the stern tube, carrying out virtual assembly on the geometric model of each component according to the actual assembly relation of each component to obtain a geometric model of the tail shaft tube; importing the geometric model of the tail shaft tube into finite element software, endowing each component with material attributes, and carrying out grid division on the geometric model by adopting an overall network size control method; and performing static analysis on the geometric model after grid division to obtain static working stress, performing dynamic analysis on the geometric model after grid division to obtain dynamic impact stress, and synthesizing the static working stress and the dynamic impact stress into total stress. According to the method, time domain and frequency domain combined shock resistance response calculation is carried out for the tail shaft tube as a core component of the ship propulsion system, and the accuracy of shock resistance response calculation is improved.

The invention discloses a municipal bridge anti-seismic reinforcing structure and a construction method, and relates to the technical field of municipal engineering.The municipal bridge anti-seismic reinforcing structure comprises a base fixed to the top of a pier, a top plate fixed to the bottom of a bridge and a supporting column located between the base and the top plate, and the bottom of the supporting column is fixed to the base through a shearing bolt; the shear bolts are fractured, so that the supporting columns slide on the base, and shock isolation is carried out between the pier and the bridge; the bottom of the arc-shaped seat is in contact with the top of the supporting column and is an arc-shaped contact surface, and vibration force acting on the bridge drives the arc-shaped seat to swing at the top of the supporting column, so that the vibration force is counteracted by utilizing gravitational potential energy of the arc-shaped seat and friction force between the arc-shaped contact surfaces. Through arrangement of the memory alloy, the arc-shaped seats, the copper plates and the supporting columns, the shock resistance of the structure is effectively improved.

The utility model provides a flexible photovoltaic support structure with wind resistance and shock resistance, which relates to the technical field of photovoltaic supports and comprises a bottom plate, a support body is arranged at the upper end of the bottom plate, a plurality of mounting plates are arranged at the upper end of the support body, shock absorbers are arranged at the bottom of the bottom plate, and a reinforcing device is arranged on one side of the bottom of each shock absorber. The reinforcing device comprises a containing plate, one side of the containing plate is fixedly connected with the shock absorber, expansion bolts are inserted into the two sides of the containing plate in a threaded mode, reinforcing plates are fixedly connected to the two sides of the containing plate, and fixing bolts are inserted into one sides of the reinforcing plates in a threaded mode. According to the photovoltaic support structure, the mounting plate fixed to the photovoltaic panel can be supported and reinforced, the situation that the wind resistance of the upper end, connected with the photovoltaic panel, of the support is large in windy weather, and then the connecting position of the support body and the photovoltaic panel is blown by strong wind to deform is avoided, and therefore the using effect of the photovoltaic support structure can be improved.

The invention discloses an unmanned aerial vehicle with an anti-impact function, and relates to the technical field of unmanned aerial vehicles, the unmanned aerial vehicle comprises an unmanned aerial vehicle body, anti-impact mechanisms, a fixing rod, a detection mechanism and an adjusting mechanism, the anti-impact mechanisms are fixedly connected to the periphery of the outer wall of the unmanned aerial vehicle body, and the fixing rod is fixedly connected to the center of the top of the unmanned aerial vehicle body; a detection mechanism is fixedly connected to the top of the fixing rod, two adjusting mechanisms are fixedly connected to the bottom of the unmanned aerial vehicle body, an anti-impact mechanism is arranged, the shock resistance and impact resistance of a fuselage and propellers of the unmanned aerial vehicle body are improved, the influence of shock on internal precise elements is reduced, and stable operation of equipment is guaranteed; meanwhile, damage to the machine body and parts is reduced through deformation buffering and energy absorption, and the safety and survivability of the equipment are improved; the detection mechanism is arranged, the obstacles are detected in multiple directions through rotation of the four laser range finders, distance information is transmitted to an external display screen, data support is provided for obstacle avoidance decision making, and collision accidents are avoided.

The invention relates to a low-cost parachute landing recovery system for a microgravity load return capsule, and aims to realize an efficient, reliable and economical recovery scheme through modular design, all modules are connected through standard interfaces, and assembly, maintenance and upgrading are facilitated. The structure module is used for assembling the parachute module and providing necessary shock resistance; the parachute module is used for pneumatic deceleration and attitude stabilization of the system and adopts a multi-stage unfolding structure; and the initiating explosive device module is used for bouncing the brake parachute, releasing the brake parachute and releasing a parachute closing opening. According to the system, the production and maintenance cost is remarkably reduced through modular design, meanwhile, the reliability and adaptability of the system are improved, and the system is suitable for various microgravity load return scenes and has wide market application prospects.

The invention relates to the technical field of impact resistance evaluation of underwater vehicles, in particular to an impact resistance evaluation method for internal equipment of an underwater vehicle. The method comprises the following steps: setting a flow field size of an underwater test environment and carrying out flow field modeling; based on the modeled flow field, performing numerical simulation on the dynamic response of the underwater vehicle under the impact load, obtaining the dynamic response value of internal equipment in each key cabin section of the underwater vehicle, and performing low-pass filtering processing; fourier transform is carried out on the dynamic response value of the internal equipment in each key cabin section after low-pass filtering processing, and an impact spectrum of the underwater vehicle is constructed; and converting the impact spectrum into a design spectrum for impact resistance evaluation, and comparing the design spectrum with an impact resistance standard system to judge the impact resistance of the internal equipment of the underwater vehicle. According to the method, the influence of the impact environment on the underwater vehicle can be intuitively and accurately quantified, so that the structural design of an internal cabin section of the vehicle is helped to be optimized.

The invention discloses a high-temperature-impact-resistant electric heating sheet for a spacecraft, and relates to the technical field of electric heating elements, and the electric heating sheet is of a three-layer composite structure. The composite film (heat preservation and insulation layer) is formed by aerogel and polyimide (PI) in an in-situ chemical bonding mode, and the polyimide composite film (heat conduction and insulation layer) is formed by Fe-Cr-Al / Ni-Cr double-layer alloy and carboxyl functionalized carbon nano tubes in a vertical orientation arrangement mode. The material has the characteristics of high thermal conductivity, wide temperature range stability, rapid thermal response and high temperature impact resistance. The preparation method comprises the steps of preparation of the heat preservation insulating layer, integration of the alloy heating layer and the heat conduction insulating layer, imidization reaction strengthening and plasma auxiliary heat treatment. The electric heating sheet can be used for thermal management of a spacecraft propulsion system or precision electronic equipment and other extreme temperature environments, the problems of high-temperature layering, response delay and the like of a traditional electric heating sheet are solved, and the thermal control reliability is improved.

The invention discloses a foamed aluminum multi-stage shock absorption and energy absorption device, and relates to the technical field of foamed aluminum shock absorption and energy absorption devices, the foamed aluminum multi-stage shock absorption and energy absorption device comprises an outer layer aluminum plate, a first foamed aluminum body, a base plate, a spring and an energy absorption unit, and the energy absorption unit comprises a moving block, a rubber body, a second foamed aluminum body and an energy absorption box; the outer-layer aluminum plate and the first foamed aluminum body form a rigid supporting and primary energy absorption layer, and the foamed aluminum porous structure is used for absorbing initial impact. The energy absorption units connected through the springs form secondary elastic buffering, progressive resistance is generated by pressing the circular-truncated-cone-shaped rubber body through the moving blocks, and stress is evenly dispersed in cooperation with the cellular board. A second foamed aluminum body and a rubber body combination are arranged in the energy absorption box, the second foamed aluminum body absorbs residual energy through plastic deformation, and the rubber body elastically deforms to achieve energy conversion. The shock absorption and energy absorption device has high energy absorption efficiency and structural stability, is suitable for a high-strength repeated impact environment, and remarkably improves the shock resistance and durability.

The invention discloses an anti-impact compliance control method, device and system for a robot tail end and a storage medium. The force information of the robot tail end is estimated based on the position, speed and joint motor torque information of a robot; and the abrupt change torque of the end effector is compensated through the trained network system, and the anti-impact performance and the contact flexibility performance of the robot end effector are improved.

The application relates to the field of heat exchangers, and discloses an energy-saving marine plate heat exchanger which comprises a shock resistance assembly, an adjusting assembly, a toughness assembly, a heat exchange assembly, heat exchange plates and a dehumidification assembly. When the ship shakes, the track can slightly shift along with the rubber pad through the installation of the adjusting assembly and the toughness assembly; when the electric motor inside the runner starts, the twisted rope is wound or released under the rotating action of the runner, the elastic rod is deformed, the bending curvature of the elastic rod is changed, the compression amount of the spring is changed, the overall rigidity of the toughness assembly is adjusted, when the moving block moves along the track, the punching block is synchronously displaced through the rigid connection, the X-shaped intersection angle of the two elastic rods is changed, the pre-tightening force of the spring is adjusted, a soft-hard adjustable shock resistance support structure is realized, and the problems of damage and reduced heat exchange efficiency of the heat exchanger caused by shaking are solved.

The invention discloses an impact resistance detection device based on a sports protector. The impact resistance detection device is characterized by comprising a detection mold table, a multidirectional deflection structure arranged around the detection mold table, and an impact structure arranged on the multidirectional deflection platform, wherein the impact structure comprises a guide cylinder facing the detection die table and a piston plate connected in the guide cylinder in an elastic guiding manner, the center of the piston plate is connected with an impact shaft, the impact shaft extends out of the guide cylinder, the tail end of the impact shaft is connected with an impact hammer, the guide cylinder is provided with a winch, and the winch is connected with the impact hammer. The winch is connected with an impact motor through a clutch and connected with the piston plate through a movable pulley. The invention aims to provide an anti-impact detection device based on a sports protector. The device is provided with a multi-directional deflection structure, so that the deflection movement of the sports protector in a plurality of planes can be simulated. Meanwhile, in combination with an impact structure, impact testing is carried out on the to-be-tested protector installed on the detection mold table.

The utility model relates to a composite photovoltaic inhaul cable, which comprises a composite anti-corrosion cable body, two ends of the composite anti-corrosion cable body are respectively wrapped in a variable cross-section extrusion sleeve of an inner cavity structure, one end of the variable cross-section extrusion sleeve is open, and the opening is sealed by an arc-shaped gland. The variable cross-section extrusion sleeve is divided into a guide arc-shaped conical surface, a first extrusion surface, an excessive pressure relief section, a second extrusion surface and a non-extrusion surface which are sequentially arranged backwards from an opening, the composite anti-corrosion cable body comprises a zinc-aluminum alloy steel strand or an epoxy coating steel strand, and the surface of the steel strand is wrapped with an extrusion bond-wrapping type polyurea layer. Due to the design of a brand-new anchoring mode and the improvement of anti-corrosion measures, the corrosion resistance of the inhaul cable is achieved, and the inhaul cable has the advantages of being high in stress fatigue resistance, good in shock resistance, reliable in anchoring performance, compact in anchorage device structure, convenient to manufacture, install and replace and the like.

The utility model discloses a multi-rib steel wire winding structure wall pipe, which comprises a pipe body and a rib pipe, the rib pipe is spirally wound on the outer wall of the pipe body along the length direction of the pipe body, the inner side pipe wall of the rib pipe and the outer wall of the pipe body are welded together, the interior of the rib pipe is hollow, and the multi-rib steel wire winding structure wall pipe is characterized by further comprising a plurality of steel wires and at least one rib, each steel wire is arranged on the outer wall of the pipe body and the outer wall of the rib pipe in a penetrating manner, and each steel wire is arranged in the winding direction of the rib pipe; the rib strips are spirally wound on the outer wall of the pipe body in the length direction of the pipe body and located in the spiral grooves of the ribbed pipe, the inner side pipe walls of the rib strips and the outer wall of the pipe body are welded together, the ribbed pipe and the rib strips jointly cover the outer wall of the pipe body, and the size of the rib strips is smaller than that of the ribbed pipe. The wall pipe with the multi-rib steel wire winding structure has better compression resistance and shock resistance, is not easy to deform after being embedded, and is not easy to break due to shock.

The invention discloses an anti-fatigue reinforcing device for a prestressed concrete electric pole, which belongs to the technical field of electric pole reinforcement and comprises two symmetrically arranged upper half rings, and a plurality of connecting plates are connected to the bottoms of the upper half rings. According to the electric pole supporting device, the upper half ring and the lower half ring can be tightly attached to the outer surface of an electric pole through mechanical transmission of a limiting and stabilizing assembly, a rotating rod, a first bevel gear, a second bevel gear and a movable lead screw, the supporting uniformity and firmness are ensured, and through the synergistic effect of a movable rod, a sleeve and a strong spring, lateral supporting is provided; shaking energy of the electric pole can be absorbed, long-term damage of vibration to the structure is reduced, the reinforcing effect on the electric pole is improved, auxiliary barbed nails can automatically go deep into soil through cooperation of a driving lead screw and a pushing block, the wind resistance and shock resistance of the whole device are further improved, the main barbed nails and the auxiliary barbed nails go deep into the ground for fixation, and the practicability is high. Inclination or displacement caused by external force is effectively resisted, and the stability and the anti-toppling capacity of the concrete pole are remarkably enhanced.

The invention discloses a kind of polyphenylene ether composite material and preparation method thereof, the polyphenylene ether composite material is prepared by weight by the following components:1000 parts of polyphenylene ether, 100 200 parts of high-impact polystyrene, 60 100 parts of polytetrafluoroethylene wax, 200 800 parts of soda lime borosilicate hollow glass microspheres, 2 10 parts of antioxidants.The present invention, by adding polytetrafluoroethylene wax in polyphenylene ether composite material, can not only enhance composition fluidity and plasticizing effect, improve its processing and mechanical property, the dielectric constant of composite material can also be further reduced.Compared with talcum powder, calcium carbonate, borosilicate hollow glass microspheres, soda lime borosilicate hollow glass microspheres are added in the present invention, the tensile strength, shock resistance of composite material can be further improved, the dielectric constant of composite material can also be significantly reduced.

According to the straight and inclined pile combined railroad bridge pile group structure and the construction method thereof, three rows of piles are transversely arranged on a line, two rows of inclined piles are arranged on the two sides of the line respectively, the vertical inclination angle of the inclined piles ranges from 10 degrees to 30 degrees, the inclined piles lean against the direction of a bearing platform to improve the overall stability of the pile group, two rows of vertical piles are arranged in the middle, and the pile group structure is provided with two rows of piles in the longitudinal direction of the line. Three piles are arranged in each row, two inclined piles and one straight pile are arranged, and six piles, two vertical piles and four inclined piles are arranged in total; the pile top and the bearing platform are connected in a semi-rigid connection mode that the bent anchoring steel bars and the rubber layer are arranged around the pile top, and the deformation capacity and the ductility capacity of the joint are improved. Compared with a vertical pile group pile foundation, the straight-inclined combined pile group foundation can reduce shearing force and bending moment caused by the horizontal load effect, the horizontal bearing capacity is fully played, the horizontal displacement is reduced to a certain extent, meanwhile, a load transmission path can be optimized through the angle of the inclined piles, and therefore the shock resistance, integrity and stability of the whole structure are improved.

The invention discloses a modular energy dissipation and seismic mitigation unit and a frame structure reinforcing and toughness improving system and method. The modular energy dissipation and seismic mitigation unit comprises a core conduction rod, a self-resetting energy dissipation assembly, a viscoelastic energy dissipation assembly and a shell force transmission module. The system realizes the combination of a plurality of modular energy dissipation and shock absorption units in a series or parallel connection mode, and adapts to different positions and use environments. The modularized energy dissipation and shock absorption unit and system are specially designed for dealing with the damage characteristic of an RC frame structure needing to be reinforced under the action of strong dynamic loads such as earthquakes, the shock resistance of the structure is enhanced through energy consumption, and meanwhile rapid resetting and repairing are achieved. And an efficient and flexible solution is provided for improving the anti-seismic toughness of the reinforced RC frame structure.

The invention discloses an impact resistance method and device for a stabilized platform based on a micromechanical gyroscope, and the method comprises the steps: recording the angle amount of the stabilized platform which is not operated due to a control bandwidth when the stabilized platform is subjected to impact or high-frequency vibration by adopting a gyroscope integration method, and continuously compensating the angle amount to a control system. The problem of pointing angle deviation caused by transient impact or high-frequency vibration can be effectively solved. The invention relates to the technical field of platform design. According to the impact resistance method and device for the stabilized platform based on the micromechanical gyroscope, the acceleration of the environment where the stabilized platform is located is calculated through a gyroscope differential method, and the acceleration is used for judging the stability of the platform environment and serves as a threshold value for starting integration of gyroscope data; a solution is given under the condition that the stable holder in a continuous tracking state is subjected to external impact, the pointing of a system can be kept stable for small-order impact, and the stable holder can still point to a target after being impacted for large-order impact.

An impact and vibration resistant aperture structure comprises an aperture supporting seat, an aperture blade and an adjusting structure, and the aperture supporting seat is provided with a light through hole, a first rotating shaft and a second rotating shaft; the adjusting structure comprises an adjusting rocking handle, a driving structure and a rotating limiting groove; wherein the adjusting rocking handle is rotationally connected to the first rotating shaft, and the adjusting rocking handle is provided with a blade driving shaft for driving the aperture blade to rotate; one end of the aperture blade is connected to the blade driving shaft, the other end is connected to the second rotating shaft, and the driving structure drives the aperture blade to rotate around the second rotating shaft; the blade driving shaft is connected into the rotation limiting groove, the axis connecting line of the first rotating shaft and the blade driving shaft forms a first connecting line L1, the axis connecting line of the second rotating shaft and the blade driving shaft forms a second connecting line L2, the first connecting line L1 and the second connecting line L2 form an included angle alpha, and the included angle alpha is smaller than 90 degrees. And the adjusting rocking handle enters a self-locking state when the driving structure is not electrified, so that the impact resistance and the vibration resistance of the aperture structure are effectively enhanced.

The application provides a two-component polyurethane sealant suitable for automobile headlight structure bonding and a preparation method thereof, and relates to the technical field of polyurethane sealants. The two-component polyurethane sealant comprises component A and component B, and the mixing mass ratio of the component A and the component B is 1:1 to 1:5. The component A comprises the following raw materials: isocyanate group terminated organic silicon modified polyurethane prepolymer 80-120 parts, powder filler 15-40 parts, and auxiliary agent 0.5-2 parts. The component B comprises the following raw materials: polyol 100-160 parts, powder filler 50-200 parts, catalyst 0.01-0.1 parts, and auxiliary agent 0.1-20 parts. The polyurethane sealant prepared by using single-end double-hydroxyl alkyl polydimethylsiloxane composite polyol for the first time has better water resistance, better bonding force on low surface energy material (PP), better cold and hot impact resistance, better ultraviolet aging resistance, better elongation at break, and better shock resistance.

The utility model relates to a sampling device for highway engineering test detection, and belongs to the technical field of highway engineering. The sampling device for highway engineering test detection comprises a bottom plate and a sampling piece arranged above the bottom plate, the anti-seismic assembly is arranged on the surface of the sampling barrel of the sampling piece; wherein the anti-seismic assembly comprises an anti-seismic cover arranged on the surface of a sampling barrel in the sampling piece, and a fulcrum is arranged below the anti-seismic cover; by arranging the anti-seismic assembly on the surface of the sleeve, when the sampling barrel descends and samples, the anti-seismic cover and a plurality of fulcrums are utilized, so that the sampling barrel can be supported and kept stable, and meanwhile, vibration force generated when the sampling barrel and a road surface rotate at a high speed can be counteracted in a multi-point manner; the problem that the tightness of a sample in the sampling barrel is influenced by resonance between the sampling barrel and other structures due to vibration generated by the sampling barrel during sampling can be effectively prevented.

The invention belongs to the field of building components, and particularly relates to a prefabricated lattice wall. According to the technical scheme, the structure is formed by splicing a plurality of aerated concrete reinforced plates, a plurality of transverse penetrating type circular-section grouting holes are formed in the aerated concrete reinforced plates, transverse penetrating type semicircular-section grouting holes are formed in the short edges of the aerated concrete reinforced plates, and vertical penetrating type semicircular-section grouting holes are formed in the long edges of the aerated concrete reinforced plates; the two vertical penetrating type semicircular section grouting holes in the splicing position of every two adjacent aerated concrete reinforced plates are spliced to form a vertical circular section grouting hole, and criss-cross hollow grids are formed. Transverse steel bars and vertical steel bars are respectively inserted into the hollow grids to form a criss-cross steel bar net, grouting materials are poured into the hollow grids, and the steel bar net and the grouting materials form a lattice-shaped connecting structure together. According to the prefabricated lattice type wall body, the heat preservation performance, the shock resistance and the construction precision of the wall body can be effectively improved.

The utility model relates to the technical field of prefabricated stairs, in particular to a prefabricated stair anti-seismic buffering structure which comprises an anti-seismic buffering assembly, a prefabricated stair body is arranged on the outer side of the anti-seismic buffering assembly, a protective fence is fixedly connected to the upper end face of the prefabricated stair body, and the anti-seismic buffering assembly comprises a supporting box. Supporting seats are fixedly connected to the two sides of the inner wall of the supporting box, a positioning rod is fixedly connected between the two supporting seats, an adjusting seat is slidably arranged on the surface of the positioning rod, reset springs are fixedly connected between the adjusting seat and the supporting seats, a first connecting seat is fixedly connected to the bottom end of the adjusting seat, and a second connecting seat is fixedly connected to the outer side of the supporting seat; according to the prefabricated staircase, the horizontal thrust of the prefabricated staircase body can be weakened or counteracted, the service life of the prefabricated staircase body is prolonged, and the safety and reliability of a building are ensured.

The utility model relates to the technical field of loudspeakers, and particularly discloses an invisible sound reinforcement plate which comprises a middle core layer which is a composite base material formed by interweaving carbon fibers and aramid fibers. The supporting layer is arranged at the upper end of the middle core layer, and the supporting layer is composed of a plurality of frameworks with the sections of regular hexagon structures and is of a honeycomb structure as a whole; the sound reinforcement plate has the advantages of high strength, good tensile effect, support of ultrahigh-frequency sound wave conduction, light weight and reduction of the overall weight of the sound reinforcement plate; the supporting layer is composed of a plurality of frameworks with the sections of regular hexagon structures, the whole supporting layer is of a honeycomb structure, rigidity is good, bending resistance is high, deformation is not prone to being caused in the assembling and using process, and therefore the using performance of the sound reinforcement plate is improved. The supporting ribs form a continuous force transmission path and disperse local stress, the trapezoid cross section reduces the stress concentration coefficient, and the buffering wrapping edge is made of silica gel materials, prevents external dust from invading the sound reinforcement plate interlayer and meanwhile plays a role in buffering and shock resistance.

The invention discloses a pipe bracket convenient to install, stable and firm for a pipeline, and particularly relates to the technical field of pipe brackets. The pipe bracket comprises a lower pipe clamp, an upper pipe clamp, an iron clamp and a connecting mechanism; the lower pipe clamp and the upper pipe clamp are symmetrically arranged, the iron clamps are arranged on the outer sides of the lower pipe clamp and the upper pipe clamp, protruding strips are arranged on the outer side faces of the iron clamps, threaded holes are formed in the side portions of the iron clamps, and bolts penetrate through the threaded holes and are fastened through fixing nuts. Through a double-locking connecting mechanism, a traditional single fastening mode is abandoned, vibration and loosening are prevented through double fixing of mechanical clamping and elastic pre-tightening, an automatic clamping and convenient unlocking structure is matched, and double positioning of a carbon steel positioning rod and magnetic attraction is adopted, so that the problem of high-altitude and narrow space installation and positioning is solved, the assembly precision and efficiency are improved, and the labor intensity of workers is reduced. The three-layer composite pipe clamp and the iron clamp protruding strips achieve the synergistic effect, the limitation of buffering and stabilizing unbalance is broken through, shock resistance, adaptation to thermal expansion and cold contraction and continuous stabilizing integration are achieved, and the service life under the complex working condition is greatly prolonged.

The utility model provides a battery and an electric device. The battery comprises a shell, a battery cell and a structural adhesive, the shell is provided with a containing cavity. The containing cavity is filled with electrolyte. And the battery cell is arranged in the accommodating cavity. And moreover, the battery cell is infiltrated in the electrolyte, so that a gap is formed between the outer surface of the battery cell and the inner surface of the shell. The structural adhesive is dispersedly coated on the outer surface of the battery cell and is used for adhering the battery cell to the inner surface of the shell. The structural adhesive is arranged between the battery cell and the shell, so that the battery cell is adhered to the inner surface of the shell through the structural adhesive, displacement or shaking of the battery cell in the accommodating cavity is avoided, and the probability that the battery cell is collided and damaged due to vibration is reduced. Moreover, the structural adhesive also has good shock resistance, can buffer part of shock generated by impact force, and further reduces the probability that the battery cell is collided and damaged due to shock, so that the service life of the battery is prolonged, and the use cost is reduced.

The utility model discloses a glass anti-impact experiment device for glass bottle processing, which comprises a mounting frame, a support frame and a mounting frame, a connecting plate is arranged at the center of the support frame, an electric slide rail is arranged on the inner wall of the opposite side of the mounting frame, the inner wall of the electric slide rail is connected with a steel ball emitter in a sliding manner, and the steel ball emitter is connected with the mounting frame in a sliding manner. The first limiting mechanisms are located on the inner walls of the two sides of the supporting frame; the second limiting mechanisms are located on the inner walls of the two sides of the supporting frame; and the fixing mechanism is located above the second limiting mechanism and comprises four threaded rods. The glass shock resistance experiment device for glass bottle processing disclosed by the utility model has the effects that glass with different sizes and thicknesses can be flexibly limited and fixed, the practicability of the device is enhanced, the test cost is reduced, and the accuracy of shock resistance experiment data results is improved.