62results about How to "Dissipate impact energy" patented technology

A shock absorbing device for protecting a hard disk drive housing found primarily in portable electronic devices. The shock absorbers include protuberances that emanate from the body of the shock absorber and that extend through apertures provided in the enclosure. Thus, the physical shock is taken up by the body of the shock absorber as well as the protuberances, which increase the compression height of the shock absorber and increase the shock damping characteristics of the shock absorber. This permits decreasing the size of the enclosure, which is often desirable to consumers.

In accordance with a particular embodiment of the present invention, an end treatment of a guardrail safety system includes a terminal portion of a guardrail beam that has a downstream end and an upstream end. The terminal portion of the guardrail beam slopes from a first vertical height appropriate for redirecting an errant vehicle to a second vertical height proximate the surface of the ground at an upstream end of the terminal portion of the guardrail beam. A flattening portion forms a channel through which the terminal portion of the guardrail beam is disposed. A vertical dimension of the channel is greater at a downstream end of the flattening portion than at an upstream end of the flattening portion. An impact plate is connected to the flattening portion for engaging an impacting vehicle at an end of said guardrail beam. During an end-on impact, the impact plate and the flattening portion are advanced longitudinally along the guardrail in a downstream direction by the vehicle. The advancement of the impact plate and flattening portion dissipate energy to decelerate the impacting vehicle. As downstream portions of the guardrail beam are forced into the flattening portion, the guardrail is flattened vertically.

A method for protecting an object from kinetic threats using a glass-ceramic is disclosed. The energy of impact is dissipated as a localized pulverization of the glass-ceramic without extensive shattering of the glass-ceramic. Further, a specific Anorthite glass-ceramic is provided and demonstrated to provide effective protection from multiple kinetic threats.

The invention relates to MC nylon engineering plastics and production process thereof. The MC nylon engineering plastics include 100 parts of masterbatch caprolactam, 1-2 parts of nanometer samarium oxide, 0.15-0.25 part of an accelerant sodium hydroxide, 0.5-1 liter of a curing agent TDI, 3-4 parts of a solid lubricant MoS2, 0.8-1.5 parts of graphite and 0.5-0.8 part of boron nitride. The production process comprises the specific steps of mould heating, feeding, curing molding, stress treatment and machining. The product of the invention can effectively transfer the external stress, and can lead to matrix yielding and consume a large amount of impact energy, so as to enhance the toughness and strength of the product. The production process of the invention employs a centrifugal casting technology, eliminates the inner pores of the product, overcomes the product quality problems of steel slider caused by internal pores and inclusion.

A foundation shock eliminator has an upper base, a lower base, at least one roller, a damping device and a static supporting device. The upper base has a top, a bottom and at least one concave inner surface defined in the bottom. The lower base has a top, a bottom and a concave inner surface defined in the top and facing the at least one concave inner surface in the upper base. The least one roller is movably mounted between the concave inner surfaces in the upper base and the lower base. The damping device is mounted on at least one of the upper base, the lower base and the at least one roller to dissipate shock energy. The static supporting device is mounted between the upper base and the lower base.

A shock for a lacrosse head comprising an energy absorbing element for use with a lacrosse head.

In accordance with a particular embodiment of the present invention, a terminal portion of a guardrail safety system includes a terminal portion of a guardrail beam having a downstream end and upstream end. The terminal portion of the guardrail beam slopes from a height appropriate for redirecting an errant vehicle to a height proximate the surface of the ground at an upstream end of the terminal portion. Support posts are installed adjacent a roadway in spaced apart relation to one another and are coupled to the terminal portion of the guardrail beam. A terminal support post is installed adjacent the roadway at an upstream end of the end terminal. The terminal support post couples to an upstream end of the terminal portion of the guardrail beam by a resistive, tensile coupling that maintains tension in the terminal portion of the guardrail beam. The resistive, tensile coupling is maintained between the terminal support post and the guardrail beam during an end-on or re-directive impact by a vehicle. However, the resistive, tensile coupling between the terminal support post and the guardrail beam is released during a reverse-direction impact.

A motor vehicle rear (10) has left and right longitudinal members (12) forming a supporting structure of the motor vehicle. A receiving housing (18) is arranged between the longitudinal members (12) for receiving a traction battery. The receiving housing (18) has a left and right side walls (22, 24) running in the forward direction of travel. A back wall (20) is connected to the left and right side walls (22) and running transverse to the forward direction of travel. An impact profile (26) is connected to the left and right longitudinal members (12, 14) and absorbs impact energy in the event of a rear crash. Left and right reinforcing elements (32 34) connect the impact profile (26) to the respective left and right side walls (22, 24) for reinforcing the impact profile (26) and conducting away some of the impact energy into the left and right side walls (22, 24).

Various embodiments of a spiral shaped element and embedded wavy materials are disclosed for use in a shock mitigating material to dissipate the energy associated with the impact of an object. The shock mitigating material can be used in helmets, bumpers, bullet proof vests, military armor, and other applications. One embodiment, among others, is a shock mitigating material having a plurality of spiral shaped elements, each having a circular cross section, and each being tapered from a large outside end to a small inside end but also having an embedded wavy material that can induce shear waves to mitigate the shock pressure and impulse.

The invention relates to a nano samarium oxide-modified monomer casting (MC) nylon sliding block and a production process thereof. The nano samarium oxide modified MC nylon sliding block comprises the following materials: 100 parts by weight of master batch hexanolactam, 0.5-1.0 part by weight of nano samarium oxide, 0.12-0.2 part by weight of accelerator sodium hydroxide, 0.3-0.7 liter of curingagent TDI (toluene diisocynate), 2-3 parts by weight of solid lubricant molybdenum disulfide, 0.5-0.8 part by weight of graphite, and 0.3-0.5 part by weight of boron nitride. The production process comprises the specific production steps of: heating up a die, feeding the materials, solidifying for molding, processing internal stress, and machining. The product disclosed by the invention can transfer the born external stress well, as well as can bend a matrix to consume a lot of impact energy, so that an effect for simultaneously increasing the toughness and strength of the product is obtained. According to the production process of the product, disclosed by the invention, a centrifugal casting technology is adopted, so that internal air holes of the product are eliminated, and product quality problems of steel casting sliding blocks caused by defects such as internal air holes, inclusion and the like are solved.

The invention discloses an anti-collision device which is used for being arranged on the anti-collision face of an anti-collision object. The anti-collision device comprises anti-collision end sockets. Each anti-collision end socket comprises a head and a first elastic piece, wherein the head is connected with one end of the first elastic piece, and the other end of the first elastic piece is used for being connected with the anti-collision face. In the collision process of the object and the anti-collision face, the anti-collision end sockets can consume the collision energy and weaken the collision force before the object makes contact with the collision face, and then the object makes contact with the collision face; compared with the prior art, when the object makes contact with the anti-collision face, the collision energy is consumed, the anti-collision face is protected, the object is also protected, and the harmonious anti-collision effect can be obtained. The invention further discloses an anti-collision buoyancy box.

The invention discloses an elastic buffering device of an anti-collision guardrail for a bridge and an implementation method of the elastic buffering device. The elastic buffering device comprises a stand column [-shaped cover plate, a sliding rod, a check block and a buffering device body. The two sliding rods penetrate through the stand column in the height direction, one ends of the sliding rods are fixedly connected with the [-shaped cover plate, the other ends of the sliding rods are fixedly connected with the check blocks, and the buffering device is arranged between the stand column andthe [-shaped cover plate. The vertical buffer device comprises a first hinge block, a connecting rod, a second hinge block, a vertical spring, a fixing block, a T-shaped sliding groove and a T-shapedsliding block. The horizontal springs and the vertical buffer devices are good in buffer effect and high in energy consumption, all the components can be conveniently connected together through the hinge rods, and construction is convenient, rapid and efficient.

The invention belongs to the safety technical field of geological disaster prevention and control, and relates to an especially-big high-altitude debris flow self-resetting energy-consuming blocking structure. The especially-big high-altitude debris flow self-resetting energy-consuming blocking structure is characterized by comprising first-row reinforced concrete separated pile structures on the debris flow upstream incidence and attack face, namely front end arc piles (1-1) and tail rectangular piles (1-2), second-row reinforced concrete rectangular piles (2) and a reinforced concrete raft foundation (4); the first-row rectangular piles (1-2) are connected through first connecting beams (3-1), the first-row rectangular piles (1-2) are connected to a maintain body through second connecting beams (3-2), in addition, the second connecting beams (3-2) need to be fixedly embedded into the maintain body by 1.5-2 m; the first-row rectangular piles (1-2) and the second-row rectangular piles (2) are connected through third connecting beams (3-3), and the second-row rectangular piles (2) are connected through fourth connecting beams. The energy consuming and vibration reducing capacity of the structure is improved, and the service life of the structure is prolonged. The anti-collision resetting capacity of the structure is improved so that deformation can be completely reset within the range of 20-30 cm.

The invention discloses a device capable of automatically adjusting the rigidity of a flexible blade of a wind turbine. The device aims at mainly solving the technical problems of easy fatigue and damage and the like in the existing flexible blade. The device is charachterized in that the two ends of an extension spring (8) and a compression spring (9) are respectively connected with a front-end fixed block (5) and a moving inertial block (4) embedded in a linear guide rail (10); one end of each steel wire rope (6) is connected with the inertial block (4); the steel wire rope (6) bypasses a fixed pulley (3) fixed on a supporting block (2), and then penetrates through the front-end fixed block (5) to be connected with a tail-end fixed block (7); two steel wire ropes (6) are symmetrically distributed at the two sides of the inertial block (4). The device disclosed by the invention has the advantages that the structure is simple, the manufacture and the maintenance are convenient, the rigidity of the flexible blade of the wind turbine can be automatically adjusted along with the change of wind speed. In addition, the device has the advantage of expanding the wind-speed range for operation of the wind turbine, and is mainly used for the field of blades of wind-power generation equipment.

The invention discloses an anti-collision facility for a bridge pier. The anti-collision facility for the bridge pier is characterized in that a plurality of anti-collision columns are distributed on the upper surface of a bearing platform by surrounding a pier stud, to serve as the main body structure for dissipating energy, and the adjacent anti-collision columns are connected by anti-collision systems. According to the invention, the work quantity of civil engineering is smaller, the implementation is not influenced by the geological conditions and the depth of river beds, and the to-be-protected bridge pier stud is not subjected to the impact force. In addition, ships can be protected, and the damage degree of the ships is lowered.

The invention relates to the technical field of bridge pier collision avoidance, and especially relates to a gravity type self-resetting pier anti-collision device structure. The anti-collision devicestructure comprises a bearing platform arranged outside a pier in a sleeving mode, a main body steel shell arranged on the edge of the top of the bearing platform, an anti-collision steel block, a supporting steel column and a weight block, the outer side wall and the upper surface of the main body steel shell are provided with a groove used for allowing the anti-collision steel block to be inserted in and an opening used for allowing the supporting steel column to be inserted in respectively, and the opening communicates with the groove; the top of the inner end of the anti-collision steel block is provided with a slope inclining downwards; the top of the supporting steel column is connected with the bottom of the weight block, and the bottom of the supporting steel column is provided with a first pulley which slides in cooperation with the slope; and at least one extension spring is arranged between the weight block and the upper surface of the main body steel shell. The device structure has the advantages of being low in material price, simple in structure, convenient to construct, suitable for old bridges and new bridges, capable of being repeatedly used, easy to detect and maintain, convenient to disassemble and the like.

An adjustable stand includes a stable base, an upright portion upending from the base, and a platform adjustably locked in the base. The platform height preferably may be adjusted continuously rather than incrementally for precise and accurate positioning of a horse hoof or other animate or inanimate object. One platform includes a diverging U-shaped cradle, with a firm but cushioning/shock-absorbing material on its top side for elevating the supported object and absorbing the concussion of the work being performed on the object. Preferably, the firm but cushioning material is a flexible strap slung across the cradle and spaced above the surface of the cradle at its center region. The preferred plastic base and continuous adjustability of the platform provide a quiet, substantially non-metallic, and non-intimidating stand that tends not to frighten horses or other animals. The preferred plastic base has a generally hollow interior and has a concave or otherwise recessed bottom surface, which features help dissipate shock from impacts or other work upon the hoof or other object supported in the stand.

The invention discloses a kinetic energy attenuation device, including a hollow shell with two closed ends, wherein a through hole through which a fence rope can pass is formed in the end face on each of two sides of the shell, and the two through holes are coaxial with the central axis of the shell; a movable damage device which is connected with the fence rope is arranged in the shell; a damage body is arranged between the damage device and each of the shell end cover, and a deformation body is arranged between the two damage device; when the fence rope is suddenly stressed, the damage device applies force to the damage bodies and the deformation body, the deformation body is stretched and the damage bodies are crushed, and thereby impact force suffered by the fence rope is converted into mechanical energy or thermal energy. Meanwhile, the invention also discloses a general classified highway fence using the kinetic energy attenuation device; through serially connecting kinetic energy attenuation devices applicable to low-frequency dynamic energy attenuation in the fence rope, the fence is good in energy attenuation effect; the parts are low in cost, so that the product cost is not increased by the promotion of the protection level; when in maintenance, the general classified highway fence only needs to replace the damage bodies simply, and is wider in adaptation and higher in reliability.

The invention discloses an ore pulp flow control and adjustment valve and a control method thereof. The ore pulp flow control and adjustment valve comprises an outer valve barrel, a valve cover plate, a cylinder bracket, a shaft sleeve, a valve seat, a valve shaft, a valve core, a cylinder and an inner valve barrel, wherein the inner valve barrel is arranged in the outer valve barrel, and is matched with the outer valve barrel through pressing bolts; an ore pulp overflow opening is formed in the upper end of the inner valve barrel. An ore pulp storage device, namely the inner valve barrel, is arranged in the outer valve barrel, so that ore pulp jetted from a gap between the valve core and the valve seat can only act on ore pulp stored in the inner valve barrel, and the stored ore pulp is used for counteracting the impact energy of sequentially jetted ore pulp; therefore, direct action of the impact energy generated by ore pulp jetting on a valve body is avoided, and the service life of the ore pulp flow control and adjustment valve is finally prolonged.

The invention discloses a protective shed of a construction site distribution box. The protective shed of the construction site distribution box comprises a concrete foundation fixedly provided with the distribution box and further comprises stand column rods, a canopy, a fence and a safety door. Wherein the stand column rods are vertically installed at the upper end of the concrete foundation andlocated on the periphery of the distribution box, the bottom ends of the stand column rods are fixedly provided with rubber support seats, the upper end of each stand column rod is provided with a buffering hole, buffering rods are connected into the buffering holes through energy dissipating structures, the canopy is in spherical hinge connection with the upper ends of the buffering rods on thestand column rods, the fence is formed by connection pieces and cross rods, the connection pieces are fixed at intervals in the length direction of the stand column poles, the two ends of each cross rod are in spherical hinge connection with the two connection pieces of the adjacent stand column poles, and the two sides of the safety door are in spherical hinge connection with the connection pieces on the two adjacent stand column poles. When the overall protective shed bears impact, impact energy can be eliminated through shaking, the rigidity and stability of the framework of the protectiveshed are good, and therefore under the condition that the protective shed is not prone to damage or deformation, the protective shed has better anti-collision capacity.