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A type of launch vehicle
ActiveCN116608736Breduce pulsating pressureLow structural strength requirementSustainable transportationSelf-propelled projectiles
This application relates to the field of rocket technology, and more particularly to a launch vehicle, comprising: a fairing, an inverted cone section, and a rocket body column section. The upper edge of the rocket body column section is fixed to the lower edge of the inverted cone section. The upper end of the inverted cone section is inserted into the interior of the fairing, and the upper edge of the inverted cone section is fixed to the inner wall of the fairing near the lower edge of the fairing. The portion of the fairing between the upper and lower edges of the inverted cone section serves as a shielding skirt to shield the inverted cone section from pulsating pressure. This application can reduce the pulsating pressure on the inverted cone section while ensuring the capacity of the fairing, reducing the structural strength requirements of the inverted cone section. In addition, this application also considers the fairing, inverted cone section, and rocket body column section, making the change of pulsating pressure more gradual and improving the noise environment inside the rocket's inverted cone section and instrument compartment.
Owner:BEIJING ZHONGKE AEROSPACE TECH CO LTD
Mounting structure of a comprehensive pole lamp arm
ActiveCN224364779UEasy to processLow structural strength requirementLighting support devicesOutdoor lighting
The utility model relates to road lighting technical field, concretely relates to a kind of installation structure of comprehensive pole lamp arm. Including comprehensive pole and single lamp arm, comprehensive pole is equipped with inner slide groove around, further including sliding block nut, first clamping slot includes connecting plate and side plate, wire hole is set in the middle part of connecting plate, hole is respectively set in upper and lower sides, connecting plate connects first sliding block nut, side plate one side is bevel, hole is all set in side plate, side plate connects second sliding block nut;Pear-shaped hoop formed by first hoop component and second hoop component, first hoop component can accommodate first clamping slot, and first hoop component is equipped with through-hole;First clamping slot inside is enclosed in the circumferential side of comprehensive pole, the outside of first clamping slot can be wrapped by pear-shaped hoop.The utility model makes pear-shaped hoop not under stress, installation reliable, not suitable for loosening, can install lamp arm on two sides;Clamping slot is simple to process, and the requirement of structural strength is low, keeps consistent with the appearance of original technical product, and material cost is reduced, can be matched with different inner slide groove pole.
Owner:SHANGHAI LIAOYANG STEEL POLE MFG CO LTD
Luggage rack and vehicle
ActiveCN117360399Breduce weightLow structural strength requirementMechanical engineeringEmbedded system
The application provides a luggage rack and a vehicle. The luggage rack is arranged on a vehicle body, and comprises a shell with a cavity and a bearing support arranged on the shell. The shell and the bearing support are used to connect a crossbar, so that the crossbar is fixed to the luggage rack. The thickness H1 of the shell satisfies the following condition: 1mm≤H1≤2mm. By enabling the crossbar to be connected to the shell and the bearing support, it can be understood that the bearing support and the shell are used together to support the crossbar, so that the requirement for the structural strength of the shell is reduced, the weight of the shell can be reduced, the overall weight of the luggage rack is reduced, the raw material cost and the production energy consumption are reduced, and the overall weight of the vehicle is reduced, so that the energy consumption of the vehicle is reduced.
Owner:FUYAO GLASS IND GROUP CO LTD
Gas stove and heating and ventilation equipment
Owner:GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
Internal and external pressure difference control system for underwater high-pressure dry type welding cabin
ActiveCN224197951UEnsure Structural IntegrityLow structural strength requirementWelding/cutting auxillary devicesAuxillary welding devicesExhaust valveControl system
The utility model discloses an underwater high-pressure dry-type welding cabin internal and external pressure difference control system, which belongs to the technical field of diving equipment, and comprises a dry-type welding cabin, a control module, an air source, a cabin internal air supply and exchange valve group and an exhaust valve group, the air source is arranged in the dry type welding cabin, the in-cabin air supply and exchange valve group and the exhaust valve group are both arranged in the dry type welding cabin, and the control module controls air inlet and exhaust of the in-cabin air supply and exchange valve group and the exhaust valve group through an umbilical cable. According to the system, the pressure difference inside and outside the welding cabin is monitored, adjusted and fed back, so that the pressure inside and outside the welding cabin is basically consistent, the underwater structural integrity of the welding cabin is ensured, the pressure difference control system can control the air humidity in the welding cabin through ventilation to meet the welding requirement, and the dry type welding cabin only bears small pressure difference and is convenient to operate. The requirement for the structural strength of the welding cabin is lowered, a high-strength pressure-resistant shell does not need to be designed, and the design and manufacturing cost is lowered.
Owner:Shanghai Salvage Bureau of the Ministry of Transport
Lifting equipment for electrical equipment installation
ActiveCN224185789UImprove stabilityLow structural strength requirementLifting framesElectric equipmentElectrical equipment
The utility model provides lifting equipment for electrical equipment installation, which comprises a base, a lifting seat is arranged on the upper side of the base, two first shear plates and two second shear plates are arranged between the lifting seat and the base, the two first shear plates are respectively and rotatably connected with the two second shear plates through rotating shafts, and the two second shear plates are respectively and rotatably connected with the lifting seat through rotating shafts. A transverse plate is installed between the two first shear plates, a jack is rotationally installed in the middle of the transverse plate, two supporting lugs are rotationally installed at the cylinder end of the jack through a shaft rod, a positioning lug is rotationally installed at the lower end of each first shear plate and fixedly connected with the base, and a reinforcing piece is installed between each shaft rod and the corresponding positioning lug. The lifting device has the advantages that counter-acting force borne by the jack is dispersed to multiple portions of the base, and the requirement for the structural strength of the connecting portion of the base and the jack is lowered.
Owner:CHINA CONSTR SECOND ENG BUREAU LTD