54results about How to "Offset the shock" patented technology

The invention discloses a protection device for an out-of-control crash of a rotary-wing-type unmanned aerial vehicle. The protection device comprises a base plate and an ejection mechanism installed on the base plate. The ejection mechanism comprises a combustion chamber fixed to the base plate, at least two ejection guns with the bottoms communicated with the combustion chamber, parachutes installed in the ejection guns and an ignition device, wherein all the ejection guns are annularly and evenly distributed and incline and extend outwards. The invention further discloses the rotary-wing-type unmanned aerial vehicle and a protection method for the out-of-control crash of the unmanned aerial vehicle, wherein the protection device for the out-of-control crash of the rotary-wing-type unmanned aerial vehicle is adopted in the protection method. According to the protection device, due to the fact that the ejection guns are arranged and annularly and evenly distributed and incline and extend outwards, the amount of gunpowder is reduced, damage to the unmanned aerial vehicle during explosion is alleviated, impact of a part of reactive force on the unmanned aerial vehicle is offset, and damage, caused by ejection of the gunpowder, to the unmanned aerial vehicle is further alleviated.

The invention provides a platform with stability enhanced by using a catamaran. The platform comprises two hulls which respectively make free pitching, a stabilized platform body, a propeller and a suspension mechanism, wherein the suspension mechanism is connected with the hulls and the stabilized platform body; the propeller is used for providing power for the hulls. The platform on which an unmanned aerial vehicle can take off and land is provided for the unmanned aerial vehicle, and the influence caused by ship shaking when the unmanned aerial vehicle takes off and lands can be effectively reduced. The two hulls which respectively make free pitching can effectively buffer the shake caused by the impact of sea waves, and the fluctuation to the stabilized platform body transmitted from the hulls is further weakened by the suspension mechanism.

The invention relates to a 3D (Three-dimensional) printer capable of reducing noise and absorbing vibration. The 3D printer capable of reducing noise and absorbing vibration comprises a base and a connecting base. Rolling wheels are arranged on the bottom end of the base; a printing platform is fixed to the upper end of the base; a screw rod is arranged in the printing platform in a penetrating way; a screw cap is arranged above the screw rod; a spring is arranged at the lower end of the screw rod; a connecting block is connected to the lower end of the spring; a fixing seat is arranged at thelower end of the joining block; a middle connecting box is fixed to the upper end in the middle of the base; and a first stepping motor is arranged at the left end in the middle connecting box. The 3D printer capable of reducing noise and absorbing vibration provided by the invention has the beneficial effects that a main side arm and an auxiliary side arm are arranged, a main linkage device andan auxiliary linkage device can be well connected; through the main side arm and the auxiliary side arm symmetrical to each other, the main linkage device and the auxiliary linkage device can be usedfor printing same products at the same time, so that the printing efficiency is improved; and meanwhile, through installing a synchronous belt, a transmission process of the 3D printer is more accurate.

The invention relates to a detachable car roof for a railway gondola car. The detachable car roof is characterized in that the detachable car roof comprises two car roof side beams which are equal to upper side beams on the two side walls of the general gondola car in length and two car roof end beams which are equal to the two upper end beams on the two side walls of the general gondola car in length and are connected to the two ends of the two car roof side beams in a fastening mode, a plurality of arched car roof bent beams which are connected between the two car roof side beams in a fastening mode and parallel to each other, a car arched roof plate connected to the inner sides of the car roof bent beams on a fastening mode, two end wall plates connected to the car roof end beams and the car roof bent beams at the two ends in a fastening and a plurality of connecting bases connected to the upper end beams of the two end walls and the upper side beams of the two side walls of the general gondola car at equal intervals in a fastening mode. The detachable car roof has the advantages of being high in strength and rigidity and convenient and fast to use, capable of eliminating the impact on the car roof in the goods transporting process and replacing a boxcar to transport goods which should be protected against the rain water and achieving the functions of both the gondola car and the boxcar. The detachable car roof can be widely applied to general railway gondola cars.

The invention discloses a vehicle body floor system suitable for air drop, and the system comprises a doorsill beam, a floor, floor cross beams, floor longitudinal beams, an energy absorption component, a middle bulge, a power protection steel component and a mounting component; the two floor longitudinal beams form a left mounting area, a power mounting area and a right mounting area; a plurality of floor cross beams are arranged in the left mounting area, the power mounting area and the right mounting area; an opening of the floor longitudinal beam faces one side of the floor cross beam, and an opening of the floor cross beam faces upwards; the energy absorption components are square aluminum pieces and are arranged on the two floor cross beams; the energy absorption component and the platform longitudinal beam are oppositely arranged; the power protection steel member is packaged below the mounting member; the power protection steel member and the air bag are oppositely arranged; and the middle bulge, the floor longitudinal beam, the mounting component and the power protection steel component form a power mounting space for mounting a power assembly. The Z-direction impact-resistant vehicle body is high in structural strength and rigidity and has excellent Z-direction impact resistance, and repeated use of the vehicle body during air drop is achieved.

The invention discloses a high-strength concrete-filled steel tube pile, which specifically relates to the technical field of concrete-filled steel tubes. A first anode ring is fixedly connected in the fixing ring, a second anode ring is fixedly connected in the second fixing ring, both the first anode ring and the second anode ring are attached to the steel pipe, and the inner cavity of the steel pipe is The sides are fixedly connected with a card seat, and the bottom of the inner cavity of the card seat is fixedly connected with a positioning column. By arranging the pipe body, the first fixing ring and the second fixing ring, the present invention exhibits good seismic performance, and the first anode ring and the second anode ring are used as protective electrodes to delay the corrosion rate of the whole steel pipe, which is different from the prior art. Compared with the overall extension of the corrosion resistance and seismic resistance of the concrete filled steel tube of the building foundation, the overall strength of the steel tube is improved, and the safety performance of the building is greatly improved.

The invention discloses a wind energy / wave energy integrated power generation device and a power generation method thereof. The wind energy / wave energy integrated power generation device comprises a hollow pile; the bottom of the hollow pile is inserted into the bottom of the sea, and the top of the hollow pile extends out of the surface of the sea; wind driven generator blades are installed on the top of a tower; electricity generated by a wind driven generator is transmitted to a controller in the tower; the controller supplies power to various components in the wind driven generator; the controller is also electrically connected with an external grid through a cable; the hollow pile is sleeved with a water storage pool; the top of the water storage pool is located above the surface of the sea; a rising slope is arranged between the surface of the sea and the top of the water storage pool; the bottom of the water storage pool is below the surface of the sea; a descending slope is arranged between the surface of the sea and the bottom of the water storage pool; the rising slope and the descending slope are in butt joint with each other so as to form an ice-resisting cone; the upper part of the water storage pool is open; two or more water-discharging holes are formed in the bottom of the water storage pool; and water turbines are installed in the water-discharging holes respectively. According to the power generation device of the invention, a relatively mature offshore wind power technology and a wave energy power generation technology with a great development potential are combined together so as to form a complementary power generation system, and therefore, grid-connected power generation can be realized with high possibility; offshore wind energy foundation pilesare effectively utilized; and a wave energy generation device and a wind energy power generation device share one set of power transmission system, and therefore, the power generation cost of the waveenergy power generation device can be decreased.

The invention provides a micro-polluted water source biological treatment device, which belongs to the field of sewage treatment and comprises a reactor body, wherein the reactor body comprises a pre-treatment unit and a post-treatment unit, the pre-treatment unit is internally provided with a suspension filler layer, a modified zeolite layer, a cobble layer and a water-permeable supporting plate;the post-treatment unit is internally provided with a cobble layer, a modified zeolite layer, a quartz sand layer and a water-permeable supporting plate; the bottoms of the pre-treatment unit and thepost-treatment unit are both provided with a bottom water outlet chamber; a downflow weir and a water outlet pipe are arranged at the right side of the post-treatment unit and a backwash pipe is alsoarranged inside the reactor. The device has the advantages of capability of effectively improving the diversity of microbial living environment, strengthening the attachment of microorganisms and increasing the diversity of system biological species so as to strengthen the removal of nitrogen and organic matters in a micro-polluted water source, capability of effectively reducing system blockage,reducing system aeration and backwash energy consumption, easy management and the like, and can greatly reduce system operating cost.

The invention provides a supporting structure for a trawl net boom and belongs to the technical field of ships. The supporting structure comprises a frame body, wherein a supporting structure body isarranged at the free end of the frame body and comprises a supporting box and a floating body; the supporting box is arranged at the top of the trawl net boom; a storage battery is arranged in the supporting box; a hydraulic lifting platform is arranged on the lower side surface of the supporting box; a lifting plate is arranged at the lower end of the hydraulic lifting platform; piston cylindersare respectively arranged at the periphery of the upper side surface of the floating body; each piston cylinder comprises a cylinder body and a piston rod; the bottom of each cylinder body is hinged to the upper side surface of the floating body; a piston is arranged at the lower end of each piston rod and is arranged in the corresponding cylinder body in a sliding manner; the upper end of each piston rod is hinged to the lower side surface of a lifting plate; when the floating body vertically swings, each piston has at least one position, so that the hydraulic lifting platform is kept relatively stable. The supporting structure provided by the invention realizes a better supporting effect on the trawl net boom, can utilize wave energy for generating power, and is green and environmentallyfriendly.