195results about How to "Light weight" patented technology

The utility model discloses a combined photovoltaic support which comprises a first base which is driven into the ground below the head of a bearing plate, the upper surface of the first base is provided with a first supporting pipe, the top of the first supporting pipe is provided with a first hinged support, and the lower surface of the head of the bearing plate is provided with a hinged shaft hinged to the first hinged support; the second base is driven into the ground below the head of the bearing plate, a second supporting pipe is arranged on the upper surface, and an outer sleeve slidably sleeves the outer side of the top of the second supporting pipe; a first opposite-pull hole is formed in the pipe wall of the second supporting pipe, and a second opposite-pull hole is formed in the wall of the outer sleeve; the supporting rod is arranged at the top of the second supporting pipe, a second hinge support is arranged at the top of the supporting rod, a rotating block is hinged into the second hinge support, a sliding groove is formed in the rotating block, and a sliding rod is arranged on the bearing plate. The height of the tail part of the bearing plate is adjusted by matching the outer sleeve with the second base, so that the angle of the bearing plate is adjusted, the structure of the tracking type photovoltaic bracket can be effectively simplified, the overall dead weight of the device is reduced, and the requirement on the ground bearing capacity is reduced.

A heat-resistant insulated PVC material for communication cables comprises the following components and parts by weight: polyvinyl chloride 45-55; stabilizer 5-10; plasticizer 15-25; nitrile oxide 3-8; aluminum hydroxide 10-15; magnesium hydroxide 20-30; smoke suppressant 1-5; skin coupling agent 1-3; IPPP 10-20. The product obtained by this invention is lightweight, has good physical and mechanical properties, excellent mechanical balance, superior flame retardancy, good thermal stability, and no dripping.

The application provides an integrated aircraft refueling lamp, and belongs to the technical field of illumination design of an aircraft in-flight refueling system, and specifically comprises a shell assembly, a light source assembly, a driving assembly and a light source regulator, the shell assembly comprises a shell and first and second cavities arranged in the shell, the light source assembly is arranged in the first cavity, the driving assembly and the light source regulator are arranged in the second cavity, the light source assembly, the driving assembly and the light source regulator are sequentially connected, the light source assembly is provided with a refueling probe illumination mode and a conical sleeve floodlight illumination mode, the driving assembly is used for dividing voltage and controlling constant current, and the light source assembly is used for stabilizing input voltage when light intensity is changed. Through the processing scheme, the airborne equipment has the advantages of light weight, integration, low cost and simple control.

The application belongs to the technical field of positioning tooling, and discloses a cup-shaped basic steel structure column installation positioning device arranged at the elevation of a steel structure column and comprising a fixing plate and a positioning plate, wherein the fixing plate is welded with the steel structure column; the positioning plate is arranged perpendicularly to the fixing plate, and a scale is arranged on the positioning plate. The fixing plate is welded to increase the firmness of the fixing plate, and the problem that the steel structure column is heavy, the auxiliary positioning device is detachable, the steel structure column is in contact with the concrete foundation during installation, and the auxiliary positioning device is easily displaced to lose the positioning function is solved. The scale arranged on the positioning plate solves the problem that the distance parameter and direction to be moved cannot be obviously observed when the steel structure column is moved.

The utility model relates to the technical field of door products, in particular to a sliding door which comprises a door frame, a hanger rail mechanism installed through the door frame, a door leaf installed through the hanger rail mechanism and a ground guide mechanism, the ground guide mechanism comprises at least two horizontal guide wheels, and wheel shafts of the horizontal guide wheels are fixed to the ground; a guide groove is formed in the bottom face of a lower stile of the door leaf, the guide groove has a certain length in the moving direction of the door leaf, and the inner wall faces of the two side walls of the guide groove abut against the two horizontal guide wheels respectively. According to the sliding door adopting the technical scheme, on the premise that the advantages of the hanger rail type sliding door are not affected, the problem that the door leaf is prone to shaking in the moving process of the hanger rail type sliding door is solved, the hanger rail mechanism keeps working smoothly, the problems of jamming, noise, loosening and the like are solved, and the hanger rail mechanism is simple in structure, light in self weight, convenient to use and high in practicability. And the sinking problem is avoided.

This utility model discloses an integrated transition yaw connection system for wind turbines, belonging to the technical field of wind power generation equipment. The system includes a wind turbine tower, a slewing bearing, a short-section cylinder, and a lower platform. The wind turbine tower has a truss-type hollow structure. The short-section cylinder is vertically arranged and its top is welded to the lower platform as a whole. Its bottom is connected to the top of the tower through the slewing bearing. This utility model uses a hierarchical structure of truss tower-slewing bearing-short-section cylinder-platform. It utilizes the short-section cylinder to distribute the nacelle load and compensate for installation errors. Combined with the slewing bearing, it achieves low-friction and stable yaw. This structure effectively solves the problems of heavy self-weight, obvious yaw vibration, complex assembly, and easy wear of connection parts of traditional wind turbine towers. It has the advantages of lightweight, stable yaw, convenient installation, and long service life.

A kind of truck wheel structure of rolling steel, including hub (1), spoke (2) and rim (3), it is characterized in that, wheel diameter is 840mm, the thickness of rim (3) is 60mm, the inner diameter of rim (3) is 720mm, the aperture of hub (1) is 210mm, overall weight is 314kg.The application increases the thickness of rim from 50mm of HESA wheel to 60mm under the premise of ensuring that the mass of wheel does not increase, which will not increase the unsprung mass, suitable for both 70t level truck, also can be used for 60t level truck.The relative HESA wheel of existing 70t level truck has the technical characteristics of high safety factor, light wheel weight, wide application range, and good application prospect.

The invention belongs to the technical field of freight unmanned aerial vehicle delivery, and relates to an intelligent cabin door system for an unmanned aerial vehicle and a cabin door structure design method. The system comprises a driving system, a reel system, a curtain plate system, a sliding rail unit and a control unit. The control unit is electrically connected with the driving system; the driving system is arranged on the unmanned aerial vehicle body; the curtain plate system is connected with an unmanned aerial vehicle body through the sliding rail unit, the curtain plate system is connected with the reel system, the driving system is in transmission connection with the reel system through a chain wheel transmission structure, and the driving system drives the reel system to rotate so as to drive the curtain plate system to stretch or retract along the sliding rail unit. Opening and closing of the cabin door are realized. According to the invention, the number of moving parts is greatly reduced, the probability of clamping stagnation and wear failure of a mechanical transmission mechanism is fundamentally reduced, and the operation reliability of a cabin door system in harsh operation scenes such as emergency logistics and disaster rescue is remarkably improved.

The utility model discloses a novel basket type grinding machine, including by draw bar, main shaft, grinding basket and dispersion disc component grinding unit, and the utility model discloses innovative design is in by upper grinding disc, lower grinding disc, mesh board, basket gland, shaft sleeve, moving ring subassembly, static ring subassembly and the basket component grinding basket, the utility model discloses adopt novel material suction grinding structure, and the upper grinding disc rotates and participates in grinding work simultaneously, and material suction grinding is carried out simultaneously, and the grinding efficiency is greatly improved, and the direction of the upper oblique round hole of the upper grinding disc is opposite with the lower oblique round hole of lower grinding disc, when working, grinding beads are not easy to accumulate in the vicinity of grinding disc, reduce the probability of broken pearl, and material can carry out more sufficient grinding, and the design of double -deck grinding disc, reduce the self weight of material suction impeller and grinding disc, improve the working efficiency of motor, and the production efficiency is greatly improved.

The invention discloses a lifting hook control method and a lifting device. Before a lifting hook is lowered, whether the pulling force of the lifting hook on a pull rope is larger than the self weight of the pull rope or not is judged; when the pulling force of the lifting hook to the pull rope is not greater than the self weight of the pull rope, the lifting hook cannot be lowered by virtue of the self weight, and at the moment, the friction wheel winch is controlled to drive the friction wheel group to release the pull rope and the winch is controlled to release the pull rope, so that the load of the pull rope between the winch and the friction wheel winch can act on the friction wheel winch; the load transmitted to the rope outlet end of the friction wheel set after the pull rope passes through the friction wheel set is attenuated, so that the dead weight of the pull rope between the friction wheel set and the lifting hook is smaller than the pulling force of the lifting hook on the pull rope, the lifting hook can pull the pull rope through the dead weight, the winch releases the pull rope according to the preset speed, and then the lifting hook is lowered.

This utility model relates to a precast concrete curb, belonging to the technical field of concrete curbs. It includes a precast body made of poured concrete, and a lightweight transport component within the precast body. The lightweight transport component includes a PVC inner tube embedded inside the precast body, with both ends of the PVC inner tube sealed by plugs. Separating blocks are cast at both ends of the PVC inner tube, and internally threaded pipes are embedded inside the separating blocks. Lifting rings are connected to the internal threads of the internally threaded pipes. This precast concrete curb, by embedding the PVC inner tube during the casting process, creates a hollow structure in the precast body, reducing its weight. The internally threaded pipe is embedded at the top of the precast body, and lifting rings are threaded into the internally threaded pipes during transportation and hoisting. This solves the problem of common precast concrete curbs being too heavy, making transportation to the site difficult and requiring excessive manpower and resources, as well as on-site handling challenges.

The utility model relates to the technical field of photovoltaic assemblies, in particular to a roof photovoltaic support and a photovoltaic building with the same, and the roof photovoltaic support comprises a plurality of groups of supporting stand columns arranged at intervals; the supporting main beam is fixedly installed at the top of the supporting stand column, a photovoltaic module is suitable for being installed on the supporting main beam, and the end of the supporting main beam extends to one side of the supporting stand column to form an overhanging part; one end of the main beam inclined strut is fixedly installed on the supporting stand column, and the other end of the main beam inclined strut is installed on the overhanging part of the supporting main beam. The cantilever part of the main beam is supported through the main beam inclined strut, an additional reinforcing structure between the supporting stand column in the middle and the supporting main beam is omitted, and the situation that the mounting position of the photovoltaic module is limited by the additional reinforcing structure in the photovoltaic module mounting process can be avoided; the installation of the photovoltaic assembly on the top of the roof photovoltaic support can be effectively simplified.

The present application relates to the technical field of fertilizer, in particular to an organic leaf fertilizer and a production method thereof.The present application solves the problems of poor fertilizer efficiency and easy damage to soil structure.The present application improves the soil organic matter content of the organic leaf fertilizer by changing the dosage of kelp, the temperature and time of ultrasonic and the dosage of kelp extract; improves the relative content of plant chlorophyll of the organic leaf fertilizer by changing the dosage of earthworms, trypsin and amino acid extract; improves the soil porosity of the organic leaf fertilizer and reduces the soil bulk density by changing the dosage of shrimp shells, the temperature of removing protein and the dosage of chitosan extract; increases the plant leaf thickness of the organic leaf fertilizer by changing the dosage of straw and the dosage of cellulose extract; and improves the fertilizer utilization rate of the organic leaf fertilizer by changing the temperature and time of stirring and the time of emulsification and grinding.

The utility model discloses a kind of non-submerged ferry modules, it is related to military water boat and boat bridge technical field, non-submerged ferry module includes capsule clothing and support framework, capsule clothing is provided with the accommodation cavity and filling port being communicated, support framework is located in the cavity wall of accommodation cavity;Polyurethane filler is located in accommodation cavity, support framework is coated in polyurethane filler along the outer wall of polyurethane filler. The filling port that capsule clothing has can be used for polyurethane raw material filling into accommodation cavity, after polyurethane raw material reaction expansion and hardening, capsule clothing can be supported, and the polyurethane filler density low specific gravity small, buoyancy in water is larger, even in sea combat encounter cannonball perforation, it also does not enter water and lead to sinking. In addition, the support framework in the inside of capsule clothing is coated polyurethane filler, so that polyurethane filler does not break apart and tear apart after being hit.

The utility model discloses a hollow arch board for building construction, including board main body, and board main body is integrally extruded by light material, the board main body is as a whole arch structure, and is equipped with arch toe on both sides, the board main body is hollow structure, and is equipped with a plurality of webs inside, and the web divides the board main body inside into multiple continuous rectangular, triangle or trapezoidal hollow cavities, the utility model discloses integrally extruded by light material such as PVC or aluminum alloy, has reduced the dead weight of board significantly, and the board is as a whole arch structure, and then combines the web set up inside, has formed the stable mechanical structure, can effectively disperse pressure, has avoided the problem that the bending stiffness of flat plate structure is low and can not satisfy the bearing demand.

This invention relates to an integrated variable camber wing based on a piezoelectric-driven torsional cubic superstructure, comprising a wing skeleton and a skin. The wing skeleton includes multiple torsional cubic superstructures arrayed along the wing chord direction. Each torsional cubic superstructure is a cube formed by an array of multiple unit-cell torsional superstructures. Adjacent unit-cell torsional superstructures in the wing length and thickness directions share a straight rod, while adjacent unit-cell torsional superstructures in the wing width direction share four Z-shaped piezoelectric rods. Each unit-cell torsional superstructure is a cube formed by an array of four cell units, with adjacent cell units sharing a straight rod. Each cell unit includes Z-shaped piezoelectric rods and straight rods. Two Z-shaped piezoelectric rods are connected to the two ends of two straight rods. Each Z-shaped piezoelectric rod at both ends of the torsional cubic superstructure is connected to the skin. When all the Z-shaped piezoelectric rods of the unit-cell torsional superstructure undergo compressive deformation in the height direction, the unit-cell torsional superstructure undergoes torsional deformation, thus causing the torsional cubic superstructure to undergo torsional deformation. By converting the compressive deformation of the cellular unit into the torsional deformation of the compressive-torsional cubic superstructure, the wing camber is changed, and the drive components are eliminated, thus realizing the lightweight design of the morphing wing.

The application provides a phosphogypsum-based light high-strength steel pipe concrete and a preparation method thereof, and relates to the technical field of the steel pipe concrete.The steel pipe concrete comprises the following raw materials in parts by weight: 450-500 parts of a hydraulic cementitious material, 255-272 parts of phosphogypsum light aggregate, 480-610 parts of gravel with a particle size of 4.75-19.0 mm, 708-743 parts of medium-coarse sand, 3.24-5.85 parts of a water reducing agent and 150-156 parts of water; the hydraulic cementitious material is a gypsum-slag cement containing modified phosphogypsum.The application realizes the lightness, controllable micro-expansion property and good corrosion resistance of the steel pipe concrete on the basis of ensuring the strength of the steel pipe concrete, and controls the manufacturing cost of the steel pipe concrete.

This utility model discloses a sunshade awning, belonging to the technical field of sunshade awnings. It includes a bottom frame, a roof frame, and sheet metal components installed on the roof frame. The bottom frame comprises at least four support pillars, each pillar including aluminum columns and first and second column I-shaped connectors mounted on the aluminum columns. The bottom frame also includes a first and second crossbeam components fixed to the aluminum columns via the first column I-shaped connectors, and diagonal bracing components connecting the aluminum columns to the first and second crossbeam components. This utility model provides a sunshade awning with a stable and reliable structure, and convenient and efficient installation.

The invention belongs to the technical field of road engineering, and discloses a concrete bridge deck pavement structure and a construction method.The concrete bridge deck pavement structure comprises a concrete base layer, the top of the concrete base layer is covered with a waterproof binder, and the top of the waterproof binder is covered with an asphalt concrete mixture; the top of the asphalt concrete mixture is covered with a stone mastic asphalt mixture; the waterproof binder adopts an asphalt binder or an epoxy resin binder; the paving thickness of the asphalt concrete mixture is 4.5 cm, and the paving thickness of the stone mastic asphalt mixture is 4 cm. By optimizing the thickness combination of the upper surface layer and the lower surface layer and improving a waterproof binder material and a forming process, light weight, durability and economization of bridge deck pavement are achieved, and the bridge deck pavement structure can be suitable for bridge engineering in high-temperature and rainy areas.

The utility model discloses a plate spring support which comprises a support body used for connecting a girder and a plate spring body and a limiting assembly, the support body is provided with a side extending plate capable of supporting the bottom wall of the girder, the support body is provided with a first wall and a second wall which are arranged in parallel, and the first wall is perpendicular to the side extending plate and attached to the side wall of the girder. The limiting assembly is installed on the frame body and connected with the girder and the plate spring body. The weight of the support can be reduced while the structural strength is guaranteed, and the dead weight of the whole vehicle is reduced.

The utility model provides an integrated honeycomb type aluminum gusset plate which comprises a gusset plate body and a connecting assembly arranged on the periphery of the gusset plate body, and the connecting assembly comprises a first connecting set arranged in the length direction of the gusset plate body and a second connecting set arranged in the width direction of the gusset plate body. The buckle plate bodies can be connected in a buckled mode in the width direction of the buckle plate bodies by arranging the first connecting set, the buckle plate bodies can be connected in a buckled mode in the length direction of the buckle plate bodies by arranging the second connecting set, and in the construction process of the integrated ceiling, every two adjacent buckle plate bodies can be rapidly and detachably connected directly through cooperation of the buckle plates and the buckle grooves. And the splicing process is not limited by the assembly space, the splicing efficiency of the multiple buckle plate bodies can be effectively improved, the use experience of a user is improved, and the buckle plate has the advantages of being stable in structure, low in self weight, simple in structure and convenient to assemble, popularize and implement.

The utility model relates to a skeleton partition wall board and a partition wall, the skeleton partition wall board comprises a partition wall board body, the partition wall board body comprises a filling board and skeletons, the skeletons are arranged on the front surface and the rear surface of the filling board, and the filling board is clamped and fixed between the two skeletons; pipeline grooves for accommodating pipelines are formed in the left side and the right side or the left side, the right side, the upper end and the lower end of the filling plate; at least one of the front surface and the rear surface of the filling plate is provided with a bottom box reserved block, the framework is provided with a bottom box reserved frame used for containing the bottom box reserved block, and after the framework clamps the filling plate, the bottom box reserved block is contained in the bottom box reserved frame. According to the framework partition wall board and the partition wall, the overall thickness and self weight of the partition wall board and the partition wall can be reduced, and the use amount of keel steel can be reduced.

The utility model provides a kind of underwater high-precision servo self-stabilizing motion device, including outer orientation rotating assembly, inner orientation rotating assembly, inner pitch rotating assembly, servo control driving assembly and base cylinder, wherein outer orientation rotating assembly is mainly used to isolate the influence of external environment to inner frame system and load, ensure the accurate control of stable loop;Inner orientation rotating assembly drives instrument to realize inner orientation rotation in limited angle range, and inner pitch rotating assembly drives instrument to realize pitch rotation in limited angle range;Device adopts two-axis three-frame structure, designs stable transmission mechanism and high-precision control system, and has good stability, high control precision, strong load and adaptability, solves the technical problems such as structure insensitivity, insufficient stability and poor adaptability, and realizes underwater high-precision coordinated motion, fast and accurate aiming and tracking target, obtains stable, clear target image and video information, and can be widely applied in optoelectronic stable platform, underwater robot, underwater exploration operation and other fields.

The invention relates to the technical field of automobile outdoor rescue, and discloses a wheel ditch escape device and a using method thereof.The wheel ditch escape device comprises a base plate serving as a basic bearing component of the device; at least two groups of multi-section telescopic rods are arranged, and the bottom ends of the multi-section telescopic rods are vertically and fixedly connected to the base plate; the clamping device is fixedly mounted at the top end of the multi-section telescopic rod; the top panel is arranged above the multi-section telescopic rod and is used for providing a horizontal supporting surface after the wheels drive out of the ditch; and the underpinning type linear sliding rail is fixedly arranged on the bottom surface of the top panel and is in sliding fit with the clamping device. The bottom supporting type linear sliding rail is arranged at the bottom of the top panel, sliding locking is achieved in cooperation with the clamping device at the top end of the multi-section telescopic rod, longitudinal displacement of the top panel can be flexibly adjusted, and horizontal endpoint position changes, caused by inclination angle adjustment, of the inclined panel are effectively compensated.

The application relates to the technical field of admixtures for building materials, in particular to a special polycarboxylic water reducing agent for gypsum boards, which comprises the following steps: S1, preparing a multifunctional monomer mixed solution; S2, preparing an initiation system: dissolving polyether macromonomer and a chain transfer agent in part of water, placing the water in a reactor, heating to a preset temperature and keeping constant; S3, performing a gradient copolymerization reaction: under the constant temperature condition, synchronously and slowly adding the multifunctional monomer mixed solution and an oxidant aqueous solution into the initiation system; S4, performing aging and post-treatment: after the addition is completed, keeping constant temperature aging at the preset temperature, then reducing the temperature, and neutralizing with lye until the pH value is 6-7, so that the special polycarboxylic water reducing agent is obtained. The whole process does not need toxic and harmful raw materials such as formaldehyde and naphthalene, and conforms to the green chemistry direction. The problems of demolding difficulty and production line congestion caused by retardation are solved, and the mold turnover rate and the production line efficiency are significantly improved. Under a higher water reducing rate, lower porosity (non-bubble pore) and higher compactness can be obtained.

The utility model discloses a kind of lightweight high-strength cabinet main body support section bar, belong to cabinet section bar technical field, its technical scheme main point includes crossbeam, column and steel tee, the steel tee is set in the connecting place of crossbeam and column, by the first section bar main plate of crossbeam and column, second section bar main plate adopts W shape outer contour, by bending process forms wave shape cross section, when bearing perpendicular load, W shape structure will force be dispersed to each bending part, reduce single-point stress concentration, steel tee is welded after inserting with crossbeam, column by connecting protrusion, the elastic deformation ability of W shape outer contour and bending part relieves welding thermal stress, improve the fatigue resistance of connecting position, compared with traditional solid rectangular steel pipe, so that the weight of cabinet section bar can be reduced, while the bending strength is greatly improved, meet the urgent needs of industrial electrical integration to cabinet lightweight, improve protection level and multi-cabinet combination and other aspects.

The utility model relates to a kind of portal frame and machine tool, comprising: first crossbeam and reinforcing square tube, the cavity is formed in the first crossbeam inside, the first crossbeam extends horizontally, the reinforcing square tube extends longitudinally, the reinforcing square tube is inserted into first crossbeam longitudinally and is fixedly connected with first crossbeam.The first crossbeam of the utility model is divided into multiple segments by reinforcing square tube, the first crossbeam part of the lateral two sides of reinforcing square tube is different segment, the lateral two ends of segment are supported by support structure, and the lateral length of segment is shorter than first crossbeam, so the middle part of segment is more difficult to produce bending deformation due to external force or dead weight, the first crossbeam of multiple segments is also more difficult to produce deformation, and the movement accuracy of the drive mechanism installed on the first crossbeam is improved, and the machining accuracy of workpiece is finally improved.

The utility model discloses a floor system core mold structure convenient to pour, which relates to the field of floor system plate construction, and adopts the technical scheme that the floor system core mold structure comprises a plurality of groups of hollow mold boxes, each group of hollow mold boxes comprises two cuboid mold boxes which are independently distributed in parallel and a plurality of connecting pieces, and two cushion columns are respectively arranged at the bottom of each cuboid mold box; a gap is reserved between the opposite inner side walls of the two cuboid mold boxes, the opposite inner sides of the two cuboid mold boxes are provided with an isolation column and a positioning groove respectively, and the end of the isolation column of one cuboid mold box is matched with the positioning groove of the other cuboid mold box; a plurality of clamping grooves are formed in the tops or the side portions of the two cuboid mold boxes respectively, hooks hung in the clamping grooves are arranged at the two ends of the connecting pieces respectively, and the cuboid mold boxes in the same group are tensioned together through the connecting pieces. Due to the fact that the gap is reserved in the middle, air can be exhausted smoothly, hollowing in the middle is avoided, the construction quality is improved, the gap between the two cuboid mold boxes can form a rib supporting structure, and the supporting strength is improved.