18results about How to "Use less material" patented technology

The invention relates to a component and process for shot blasting the inner and outer walls of a steel pipe, which comprises a conveying flat car I, a driven roller frame, an outer wall shot blasting mechanism, an inner wall shot blasting mechanism and a dust removal system; the conveying flat car I is used to transport a workpiece to a shot blasting station; the workpiece is a sleeve body with both the inner and outer sides being in a rotating form; at the shot blasting station, the workpiece is driven to rotate by the roller frame and driven forward by the conveying flat car I; the dust removal system comprises a dust removal part I for the outer wall shot blasting mechanism and a dust removal part II for the inner wall shot blasting mechanism. The invention has reasonable design, compact structure and is easy to use.

The present invention belongs to the technical field of plasma torches, and relates to a cathode head for a plasma device, comprising a cathode head body, which comprises an arc-starting emitter, an intermediate cylinder, a tail cylinder and a connection part for abutting against a plasma torch water-cooling pipe connected in sequence from left to right; the arc-starting emitter is made of tungsten or a tungsten alloy, and is formed integrally by an arc-starting cylinder and an arc-starting spherical segment, and one end of the arc-starting cylinder is fixed to one end of the intermediate cylinder; a threaded hole is provided in the intermediate cylinder, and an angle γ exists between the straight line where the hole wall of the threaded hole is located and the vertical direction, and the degree of the angle γ is 90° to 120°; an inclination angle ε is set at the connection end of the plasma torch water-cooling pipe, and the inclined surface where the inclination angle ε is located abuts against the threaded hole, so as to realize the hard sealing between the cathode head body and the plasma torch water-cooling pipe. The present invention improves the cathode head structure, has a good water cooling effect while having a compression arc function, and prolongs the service life of the cathode head.

The present invention provides a single-transformer multi-channel output power supply based on a resonant architecture, comprising an AC input unit connected to an electromagnetic filtering unit, a rectifier unit connected to the electromagnetic filtering unit, a boost unit connected to the rectifier unit, a capacitor filtering unit connected to the boost unit, an adjustment feedback unit connected to the capacitor filtering unit, a resonance control IC unit connected to the adjustment feedback unit, the boost unit and a resonant frame main transformer respectively, a resonant frame main transformer connected to the resonance control IC unit, at least one output rectifier module is arranged on the resonant frame main transformer side, the output rectifier module is composed of two N-type field effect transistors and a synchronous rectifier controller, and the output rectifier module outputs a corresponding voltage according to a set voltage adjustment rate and efficiency.

The invention relates to a phosphorus-containing dihydric alcohol flame retardant as well as preparation and application thereof, and belongs to the field of organic compounds. The invention provides phosphorus-containing dihydric alcohol. The structure of the phosphorus-containing dihydric alcohol is shown as a formula I in the specification. Trihydroxymethyl phosphorus oxide and inorganic acid react to synthesize eight-membered ring-shaped phosphorus-containing dihydric alcohol (DTHPO for short), the eight-membered ring-shaped phosphorus-containing dihydric alcohol is applied to polyurethane foam preparation, flame-retardant intrinsic polyurethane foam is obtained, and the limit oxygen index of the obtained flame-retardant material can reach 27%. # imgabs0 #

The utility model discloses a field battlefield hospital floor unit and floor structure, including floor unit, a plurality of floor units are mutually spliced to form the floor structure, the floor unit includes the cylinder of hexagonal prism structure, the upper end of the cylinder is open, and the lower end of the cylinder is closed. A cover plate is detachably mounted at the upper end of the barrel to seal an opening in the upper end of the barrel, and a plurality of adjusting bolts are arranged at the lower end of the barrel; and at least one through hole is correspondingly formed in each of at least two opposite side surfaces of the cylinder body. The floor units of the hexagonal structure are adopted, the floor structure can be conveniently spliced, various medical equipment pipelines can be conveniently arranged in a penetrating mode through the detachable structure and the through holes formed in the cylinder body, the integration degree is high, the pipelines are located in the floor structure, the occupied space is small, higher safety is achieved, and meanwhile the floor units are convenient to assemble and disassemble. Adjusting bolts are arranged on the lower portions of the floor units, so that the levelness of the floor units is convenient to adjust, and better terrain adaptability is achieved.

The present invention relates to the technical field of high-speed maglev train bridge engineering, and provides a maglev track beam, including a plurality of main beam sections arranged in sequence along the driving direction, and also including a splicing structure for eliminating the misaligned load effect stress between the end faces of two adjacent main beam sections facing each other, the two adjacent main beam sections are connected by the splicing structure, and the upper surfaces of the two adjacent main beam sections after connection are in the same plane. It also includes a maglev track structure, including the above-mentioned maglev track beam and another track beam arranged above the maglev track beam, the beam seam of the other track beam is aligned with the beam seam between the two adjacent main beam sections of the maglev track beam. A maglev track structure of the present invention includes the above-mentioned maglev track beam and another track beam arranged above the maglev track beam, the beam seam of the other track beam is aligned with the beam seam between the two adjacent main beam sections of the maglev track beam.

The utility model belongs to mechanical equipment field relates to a kind of thermal power plant slurry circulating pump impeller dismounting tool, including impeller locking nut, notched, dismounting tool, tooth head and outer convex nut, multiple notches are provided in the outer ring of impeller locking nut, dismounting tool is provided in the outer side of impeller locking nut, for the dismounting of the impeller locking nut, multiple tooth heads are provided in the top outer ring of dismounting tool, outer convex nut is fixedly installed in the bottom of dismounting tool.The utility model is made into slurry circulating pump impeller dismounting special tool by using the existing waste pump shaft design, processing and manufacturing, and through the practice research such as continuous reform, trial, optimization design, tool strength and use safety are improved, security risk is eliminated, to reach the purpose of improving the nature of maintenance personnel work safety and work efficiency.

This application discloses a split-type digital tube display structure, relating to the field of digital tube technology. It includes a display film, a housing, a perforated light guide plate, a circuit board, and a cover plate connected sequentially. The display film is attached to the outer side of the housing. The perforated light guide plate and the circuit board are both located inside the housing. The cover plate is fastened and sealed to the housing. A cable tray for the circuit board's wiring is provided on one side of the housing. The perforated light guide plate is integrally injection molded with the inner side of the housing. A housing clip extends from the side of the housing, and a cover plate slot is provided on the side of the cover plate. The housing clip and the cover plate slot are correspondingly fastened together. This application improves product usability and disassembly / repair efficiency.

The utility model discloses a pushing and bottom lifting mechanism suitable for a fully sealed hydraulic support base, and relates to the technical field of coal mine hydraulic supports, the pushing and bottom lifting mechanism comprises a pushing mechanism and a bottom lifting mechanism, the pushing mechanism comprises a connector, a push rod, a connecting seat, a pushing jack and a pushing seat, the push rod is composed of two parallel cross rods, and the connecting seat is connected with the pushing jack. One end of the push rod is connected with a scraper through the connector, the other end of the push rod is rotationally connected with a base of a hydraulic support through a pushing seat, and a pushing jack rotationally connected with the pushing seat is arranged between transverse rods of the push rod. One end, far away from the pushing seat, of the pushing jack is rotationally connected with a scraper through the connecting seat; the hydraulic support has the beneficial effects that the pushing mechanism and the bottom lifting mechanism are redesigned, the push rod is used as a bottom lifting fulcrum, the front foot of the base is lifted to move forwards by adjusting the bottom lifting jack, and the problem that a hydraulic support in a semi-sealed bottom or full-sealed bottom form does not have a bottom lifting function is solved.

The utility model discloses a beam bottom expanded section reinforcing structure in the technical field of building structure reinforcing, which comprises a closed stirrup welded along the periphery of the beam bottom of an original frame beam, the upper end of the closed stirrup is connected with the beam top of the frame beam, a U-shaped hoop is arranged in the closed stirrup, two ends of the bottom of the U-shaped hoop are welded with embedded ribs, and the upper end of the U-shaped hoop extends into the beam bottom of the original frame beam. Multiple sets of connecting ribs are welded to the two sides of the closed stirrup towards the interior of the beam bottom of the original frame beam, a notch is formed in the joint of the beam top of the frame beam and the beam bottom of the original frame beam, and widened beam edges on the two sides of the notch extend towards the interior of the beam top of the frame beam to form trapezoidal notches. The reinforcing structure reinforces the three faces of the beam bottom, increases the width and height of the beam bottom, improves the connecting strength of the beam bottom and the beam top, enables the beam structure to be more stable when bearing external force, the repaired beam bottom structure meets the bearing requirement, durability is improved, the service life of the whole structure is prolonged, and the service life of the whole structure is prolonged. And the device is suitable for building reinforcement engineering.

The invention discloses a preparation method of a flexible automatic temperature limiting conductive material, and belongs to the technical field of functional material preparation. The normal-temperature flexible thermal management material is prepared by using EVA as a supporting material, hexadecanoic acid and stearic acid as phase-change materials and graphite as a conductive filler and adjusting the use ratio of the materials, so that excellent temperature control performance and a relatively low conversion temperature point are achieved. Meanwhile, the material is combined with the interdigital electrode, so that the heat sensitivity of the device is improved, the resistance value of the composite material is reduced, and the use requirements under different powers are met by adjusting the pattern of the interdigital electrode, so that the response speed of the whole composite material to the temperature is improved; high PTC strength and good room temperature resistivity are achieved by changing the content of the conductive filler in the composite material. Under different proportions of components, the composite material has good electric heating performance, and meanwhile, under the conditions of different voltages, cyclic pressurization and further pressurization, the temperature control condition is good.

The utility model discloses a composite damping structure which comprises a connecting pipe, a connecting ring is connected to the surface of one end of the connecting pipe in a sleeved mode, vortex-shaped connecting bridges are evenly arranged in the connecting ring, and the vortex-shaped connecting bridges are fixedly connected with the surface of the connecting pipe. The damping device is simple in structure, simple in manufacturing process, few in used materials and low in manufacturing cost, and after the damping device is connected with an object needing damping, the connecting ring and the vortex-shaped connecting bridge can enable the connecting ring to deform to a certain degree during vibration, and the effective damping effect is achieved.

The utility model provides a reinforced sealing strip, and belongs to the technical field of sealing strip production. Comprising an inserting section, the top of the inserting section is fixedly connected with a sealing head, the inner side of the inserting section is fixedly connected with a supporting assembly, the supporting assembly comprises edge pieces fixedly connected to the two ends of the inner side of the inserting section, a plurality of supporting elastic pieces are sequentially and fixedly connected between the two edge pieces from top to bottom, and a plurality of inner holes are formed in the inner sides of the supporting elastic pieces; the inner side of the sealing head is fixedly connected with a reinforcing assembly; according to the sealing strip, by arranging the extrusion ring and the supporting assembly, the two ends of the inserting section can be supported through cooperation of the multiple supporting elastic pieces, the stability of the inserting section clamped to the installation portion is improved, and the installation stability of the sealing strip is further improved through extrusion supporting of the extrusion ring; the width reduction design of the inserting section is matched with the arc shape of the bottom of the inserting section, so that the sealing strip is convenient to mount, and the practicability of the device is improved.

The utility model provides a roof upright lock seam structure, and belongs to the technical field of roof waterproof. The vertical lock stitch structure solves the problem of how to improve the waterproof performance of an existing vertical lock stitch structure on the basis of reducing the cost. A roof is provided with an expansion joint, roof panels which are separated from each other are arranged on the roof on the two sides of the expansion joint, the vertical lock seam structure comprises a roof plate, the roof plate is located above the expansion joint, the two sides of the roof plate are each provided with a bent part which is lifted upwards, and the bent parts on the two sides and the outer edges of the roof panels on the two sides are bent and sealed to form lock seam parts. The height of the lock seam part in the vertical direction is larger than the height of the top of the roof plate. The lock seam part is located at the highest position of the whole roof plate after being lifted, rainwater cannot enter the roof plate through the lock seam part, and therefore the sealing waterproof performance is improved while used materials are greatly reduced through the design.

This invention provides a nano-light-purifying green intelligent aeroponic system and an integrated planting and breeding system, belonging to the field of aeroponic device technology. It includes a cultivation module, a nutrient solution circulation supply module, an ultrasonic atomization module, an AMF microbial agent processing module, an auxiliary adjustment module, a harvesting module, a control and monitoring module, and a solar power supply module. The cultivation module provides suitable growing space for crops; the nutrient solution circulation supply module circulates the nutrient solution needed for crop growth on the cultivation module. The nano-light-purifying green intelligent aeroponic system of this invention features a cultivation rack with a sloping three-dimensional triangular or trapezoidal structure, which is simple to manufacture and has low labor and cost. The nutrient solution circulation supply module is installed under the cultivation rack to collect and recycle the nutrient solution after supply, achieving recycling and improving the utilization rate of the nutrient solution. Furthermore, the integrated planting and breeding system integrates planting, harvesting, and breeding, improving agricultural production efficiency.

The utility model discloses a special safety component for building first floor sewage pipe installation reinforcement, include: sewage pipe support piece (1), sewage pipe support piece (1) is used for supporting sewage pipe (4), sewage pipe limiting piece (2), sewage pipe limiting piece (2) is connected to the both sides of sewage pipe support piece (1) symmetry or asymmetry, wherein, one end of each sewage pipe limiting piece (2) is connected with the outer wall of sewage pipe support piece (1), and the other end of each sewage pipe limiting piece (2) is connected with the steel mesh (7) on reinforced terrace (6) through limiting rope (5) and is connected as a whole or is directly anchored into plain concrete terrace. The utility model simple structure, novel and reasonable design can effectively reduce the risk of sewage pipe settlement cracking or joint drop due to backfill soil settlement during the use of sewage pipe, and when installing, it is simple and quick, and can be directly installed on the construction site without the aid of other tools, saving time and being efficient.

The utility model provides an all-terrain ground anti-collision device. The all-terrain ground anti-collision device comprises an anti-collision column, a foundation and a reinforcing piece. The anti-collision column is provided with a cavity, and the cavity is filled with filler. The lower end of the anti-collision column extends into the foundation and is provided with a pouring hole, so that the foundation and the filler can be synchronously poured and connected into a whole; the anti-collision column comprises a column body, a cover plate and a bottom plate, and the bottom plate is provided with a connecting hole and a pouring hole. Part of the reinforcing piece is arranged in the cavity, and the other part of the reinforcing piece penetrates through the connecting hole, extends to the foundation and is fixed to the bottom plate through bolts; and at least three bending sheets are uniformly arranged on the outer side of the column body. The utility model has the advantages of ingenious structure, unique conception and fewer used materials; the installation of the bumper post can be rapidly completed, good integrity is achieved, meanwhile, the structure is stable, the installation quality is good, the installation speed is increased, and the construction period, the labor cost and the material cost are saved; and by arranging the bending piece, the operation difficulty and workload of workers are effectively reduced, and manpower resources are saved.