62results about How to "Effectively absorb impact energy" patented technology

An energy absorbing tubular structure is formed of a molded or extruded polymer. The tube has a quadrangular cross-section with rounded corners. The walls of tube are corrugated with alternating convex and concave corrugations surfaces having a continuous constant radius, preferably with no flat spots. The corrugated walls have a constant thickness. The corrugations progressively deform during impact thereby providing a near perfect square wave force vs. deflection energy absorption curve at any predetermined nearly constant force level. The tube may be filled with polymer foam to vary the impact performance of the structure.

A protective member primarily for use as an energy absorbing pad for incorporation into garments to protect the wearer against accidental impacts. The member comprises a putty-like energy absorbing material (2) encapsulated in a flexible envelope (3, 4). The energy absorbing material is normally soft and flexible but changes to become temporarily rigid when an impact force is applied thereto, thereby absorbing the impact energy, the material returning to its normal flexible condition after the impact. The energy absorbing member preferably comprises a series of connected corrugations to increase its energy absorbing properties.

An impact energy absorbing knee bolster system is basically provided with a lateral offset input restriction structure and a vertical offset input absorption structure. The lateral offset input restriction structure restricts a lateral offset input component of an impact load imparted by a passenger's knee against the knee bolster to lateral direction and promotes deformation of the knee bolster during a collision. The vertical offset input absorption structure absorbs a vertical offset input component of the impact load imparted by the passenger's knee against the knee bolster and to promote deformation of the knee bolster during the collision.

The present invention relate to an impact-resistant lightweight density gradient composite material, a fan containment casing, a preparation method and an application thereof. The impact-resistant lightweight density gradient composite material, the structure form of the composite material fan containment casing, and material delamination are creatively designed, the designs of composite structurelayers of a carbon fiber reinforced resin matrix composite layer, a carbon fiber/aramid fiber reinforced resin matrix composite layer and an aramid fiber reinforced resin matrix composite layer are adopted, the thickness of each structural layer is optimized, and the carbon fiber reinforced resin matrix composite layer resists shear failure, the carbon fiber/aramid fiber reinforced resin matrix composite layer resists delamination failure, the aramid fiber reinforced resin matrix composite layer resists tensile fracture failure. The structural design significantly reduces the structural weight and improves the impact resistance of materials.

The invention discloses an HDPE (high-density polyethylene) double-wall corrugated pipe. The pipe comprises the following raw materials in parts by weight: 15-55 parts of HDPE, 3-18 parts of LDPE (low-density polyethylene), 6-24 parts of LLDPE (linear low-density polyethylene), 2-20 parts of EVA (ethylene vinyl acetate), 4-18 parts of drawing grade polypropylene, 5-10 parts of attapulgite powder, 1-10 parts of white carbon black, 1-10 parts of zirconium sulfate, 10-20 parts of graphite, 5-15 parts of nano-carbon, 8-20 parts of polyimide fiber, 0.5-4 parts of a silane coupling agent KH151, 1-2 parts of diphenyl ketone, 1-10 parts of a composite lubricating agent, 0.01-0.2 part of nano-silver, 0.5-5 parts of flavonols, 0.5-5 parts of zinc stearate, 1-5 parts of polyacrylamide, 5-10 parts of methyl methacrylate, 1-5 parts of 2, 4-dichlorobenzoyl peroxide and 10-20 parts of 6-ethoxy-2, 2, 4-trimethyl-1, 2-dihydroquinoline. According to the pipe prepared from the raw materials disclosed by the invention, mechanical properties, impact resistance, deformability, anti-aging performance and anti-fouling performance are obviously and greatly upgraded.

An integrated side member having an impact absorbing structure may include a side member upper part connected to a front coupling end portion to be connected to a crash box, the side member upper part being formed in a ‘U’ shape by connecting its left and right members to each other, side member lower parts fastened to the side member upper part, and a dash cross member coupled to a lower portion of the side member upper part and between both side member lower parts.

The invention relates to a shock-absorption buffer shaft. The shock-absorption buffer shaft comprises an input shaft, an input end cover, a force transfer pin, an input toothed sleeve, an input toothed wheel, a double toothed wheel, a spring, an output toothed sleeve, an output toothed wheel, an output shaft, an output end cover, a limiting bolt, a fastening bolt and an external sleeve. Force is transferred to the input toothed sleeve by virtue of the teeth of the first internal toothed ring of the input toothed sleeve in a manner of compressing a spring through the teeth of an external toothed ring on the input toothed wheel, later the force is transferred to the double toothed wheel by virtue of the teeth of the first external toothed ring of the double toothed wheel in a manner of compressing the spring through the teeth of the second internal toothed ring of the input toothed sleeve, then the force is transferred to the output toothed sleeve by virtue of the teeth of the first internal toothed ring of the output toothed ring in a manner of compressing the spring through the teeth of the second external toothed ring of the double toothed wheel, and then the force is transferred to the output toothed wheel by virtue of the teeth of the external toothed ring of the output toothed wheel in a manner of compressing the spring through the teeth of the second internal toothed ring of the output toothed sleeve, and finally, the output toothed wheel is used for transmitting the torque by virtue of the force transfer pin through the output shaft.

The invention discloses steel wire mesh skeleton composite tube. The tube is prepared from the following raw materials in parts by mass: 15-55 parts of HDPE, 3-18 parts of LDPE, 6-24 parts of LLDPE, 2-20 parts of EVA, 4-18 parts of drawing-grade polypropylene, 5-10 parts of montmorillonite, 10 parts of white carbon black, 1-10 parts of barium sulfate, 10-20 parts of graphite, 5-15 parts of carbon nanotube, 8-20 parts of polyimide fibers, 0.5-4 parts of a silane coupling agent KH151, 1-2 parts of diphenyl ketone, 1-10 parts of a composite lubricant, 0.01-0.2 part of nano-silver, 0.5-5 parts of flavonol, 0.5-5 parts of zinc stearate, 1-5 parts of polyacrylamide, 5-10 parts of methyl methacrylate, 1-5 parts of 2,4-dichlorobenzoyl peroxide and 10-20 parts of 6-ethoxy-2,2,4-trimethyl-1,2-dihydro-quinoline. The mechanical properties, impact property, deformation degree, aging resistance and stain resistance of the tube prepared from the raw materials are significantly and greatly increased.

A seat buffering device and a vehicle safety seat including the seat buffering device are provided. The seat buffering device is disposed on a base of the vehicle safety seat. The seat buffering device includes a reinforcing component and at least one concave structure. The reinforcing component is disposed inside the base, and the reinforcing component has a plurality of lateral surfaces. The at least one concave structure is formed on one of the plurality of lateral surfaces. The reinforcing component is adapted to be bent via the at least one concave structure when the base is impacted, so as to reduce impact force applied to the base. Buffering efficiency of the reinforcing component corresponds to the amount, the arrangement, and the angle of the concave structure. The plurality of concave structures is disposed on the same or different lateral surfaces of the reinforcing component in the interlaced arrangement.

The invention discloses a three-directional composite self-lubricating sliding bearing for a main shaft of a wind turbine set, which has simple structure, convenient installation and disassembly and low cost, can avoid eccentric loading, can bear larger and multi-directional loads, is safe and reliable, has long service life and is provided with an outer ring (1) and an inner ring (2). A plurality of uniformly-distributed radial pads (3) are arranged between the outer ring (1) and the inner ring (2), an inward left thrust ring (4) is connected with the axial left side of the outer ring (1), an inward right thrust ring (5) is connected with the axial right side of the outer ring (1), a plurality of uniformly-distributed axial thrust pads (6) are respectively arranged between the left thrust ring (4) and the inner ring (2) and between the right thrust ring (5) and the inner ring (2), the radial pads (3) and the axial thrust pads (6) are provided with communicated lubricating passages (7), and the lubricating passages (7) are communicated with an oil filling hole (8).

An air bag device of the present invention includes an bag member formed by a circular front-side cloth and a circular reverse-side cloth which are sewn together at their outer peripheral edge portions. The air bag device is provided with an annular lid member for closing a plurality of gas discharge portions formed in the reverse-side cloth. Therefore, in this air bag device, the bag member can be instantaneously inflated and expanded to effectively restrain the passenger arid also to effectively absorb an impact energy acting on the passenger.

The invention belongs to the technical field of processing of heat-resisting phenolic resin and specifically relates to a method for improving the toughness of the heat-resisting phenolic resin. The method comprises the following steps: preparation for raw materials, processing of modified sepiolite fibers, preparation of pre-mixed solution and preparation of the heat-resisting phenolic resin. Compared with the prior art, the method has the following advantages: the sepiolite fibers are processed by butyl titanate-ethanol mixed solution, and the processed sepiolite fibers are matched with (methyl) acrylate-hydroxy ester, so that the internal binding force of a composite material can be enhanced, and the impact energy can be effectively absorbed; through reasonable match of the raw materials, the mechanical strength, fire resistance and aging resistance of the material are enhanced, the heat fading is obviously improved; therefore, the heat-resisting phenolic resin can be used for the fields of fireproof interior and exterior wallboards, equipment materials suffering from high impact, base materials of brake pads and clutch plates, aerospace and the like.

The invention discloses a wharf protecting device comprising a plurality of buffer units, a buffer unit mounting base, a wharf foundation, a wharf protecting device mounting pit, an oil return headerpipe, an oil tank, an oil pump, a first check valve and a second check valve. In order to improve the technological level of a port and the wharf protecting device, the invention provides the wharf protecting device composed of the multiple buffer units, and impact energy generated by a ship in the process of making harbor can be absorbed effectively; a wharf and other infrastructures are protected fully; meanwhile, a hull is prevented from being damaged in the berthing process due to impact on the wharf, and the safety of the ship making harbor is improved greatly. According o the wharf protecting device provided by the invention, accident risks of the ship in the process of making harbor can be reduced, and the wharf protecting device has wide application prospects.

The invention relates to a bottom guard plate structure of a front bumper. The structure comprises a bottom protection plate body, the bottom protection plate body is installed between a front end frame and the front bumper, the front end of the bottom protection plate body is in lap joint with the front bumper, the rear end of the bottom protection plate body is fixedly connected with a lower cross beam of the front end frame, and a gap between the front bumper and the front end frame is sealed to achieve the effect of improving the whole vehicle wind resistance and the cabin heat dissipationperformance; and a shank supporting cross beam and transverse and vertical grid ribs are arranged on the bottom protection plate body, the transverse and vertical grid ribs are arranged in the lap joint area of the bottom protection plate body and the front bumper, and the shank supporting cross beam is arranged at the rear portions of the transverse and vertical grid ribs. When a pedestrian collides, the transverse and vertical grid ribs play a role in preliminary buffering and energy absorption, and the shank supporting cross beam behind the transverse and vertical grid ribs plays a role inmain energy absorption and supporting. In pedestrian protection leg type collision, the integrated shank supporting cross beam absorbs collision energy, so that light weight is achieved, and impact energy on the lower portion of the shank of a pedestrian can be effectively absorbed.

Hybrid energy absorbing assembly for attachment to a vehicle for a vehicle, comprising a bumper beam comprising a plastic material; and a towing assembly, wherein the towing assembly comprises a metal insert. The invention also relates to a metal insert for such a hybrid energy absorbing assembly. Moreover, the invention relates to a vehicle provided with such a hybrid towing bumper beam assembly, wherein the metal insert is connected to a body-in-white of the vehicle. Furthermore, the invention relates to a method for manufacturing such a hybrid towing bumper beam assembly for a vehicle, the method comprising placing the metal insert in a mold; introducing molten thermoplastic material, to a mold to in site form the energy absorbing assembly and thus overmolding the metal insert with the thermoplastic material, thereby embedding the metal insert in the bumper beam.

A solar energy racing car detachable body apparatus Using in field of car body manufacture technology. The invention comprises: machine head, aluminium alloy framework, solar cell panel with base plate, screw, cowling, chassis part, coverage, four dropper connecting equipment, The aluminium alloy framework connects with the rear portion of the machine head, the >solar cell panel with base plate fixed on the aluminium alloy framework with screw, the coverage covers on the side of the aluminium alloy framework with a screw, the cowling fixes on the aluminium alloy framework, the chassis connects with the aluminium alloy framework, the four dropper connecting equipment welds with the aluminium alloy framework and the left anterior, right anterior, front anterior, back anterior separately. The invention abolishes integral car body, avoids the expensive mold and the heavy mass of the integral car body, effectively saves energy and lifts the whole performance of the racing car.

A vehicular propeller shaft through which a rotary motion of a drive power source is transmitted to drive wheels and which includes a first tubular member and a second tubular member. The first tubular member has a large-diameter cylindrical section, a small-diameter cylindrical section having a smaller outside diameter than the large-diameter cylindrical section, and a tapered cylindrical section formed between one end of the large-diameter cylindrical section and the small-diameter cylindrical section. The large-diameter cylindrical section, the small-diameter cylindrical section and the tapered cylindrical section are formed integrally with each other. The second tubular member is coaxially joined to the first tubular member and formed of a material having a higher degree of strength than the first tubular member.