38results about How to "Avoid elastic failure" patented technology

The invention relates to a wear-resisting small eccentric V-ball regulating valve special for salt chemical engineering. The wear-resisting small eccentric V-ball regulating valve comprises a valve body, a packing box is machined on the valve body, a packing seal assembly, a packing gland and a packing pressing plate are sequentially arranged in the packing box and connected with the valve body in a fastening mode; a small eccentric valve ball is concentric with a transmission shaft and a driven shaft, the small eccentric valve ball is connected with the transmission shaft and the driven shaft and arranged in the valve body, an upper bush and the transmission shaft are arranged in the valve body from the top, a lower bush and the driven shaft are arranged in the valve body from the bottom, and a valve seat and a pressing ring are arranged in the valve body from the side face; a first distance adjustment pad and a second distance adjustment pad are arranged on the upper end face and the lower end face of the small eccentric valve ball; a first C-shaped seal ring is arranged in a clamping groove between the valve body and the first distance adjustment pad; a first supporting ring is arranged between the upper bush and the lower bush, and a second supporting ring is arranged between the first C-shaped seal ring and a second C-shaped seal ring. According to the wear-resisting small eccentric V-ball regulating valve, blocking of a flow channel of the valve body can be effectively prevented, corrosion of a cavity by crystals can be effectively prevented; the adjustment accuracy of the valve can be improved; scouring and corrosion of media on the valve body and components in the valve can be reduced; particle media can be prevented from entering valve shaft gaps, the adjustment accuracy of the valve can be greatly improved, and the service life of the valve can be greatly prolonged.

The invention discloses a slope reinforcing device for construction municipal civil engineering. The slope reinforcing device for construction municipal civil engineering comprises a hollow, long and straight barrel body, wherein external threads are formed in the outer wall of the barrel body, a bearing is fixed to the upper portion of the inner wall of the barrel body, a guide rod is installed on the inner ring of the bearing in an interference manner, the guide rod and the barrel body are located on the same axis, a screw portion and a thread portion are arranged on the lower portion of the guide rod from top to bottom in sequence, gear insertion rods are installed on the two sides of the barrel body, each gear insertion rod comprises a gear end and an insertion rod end which are connected, each gear end is rotationally installed on the barrel body through a rotary shaft, and part of each gear end is located inside the barrel body and is meshed with the screw portion of the guide rod. The slope reinforcing device for construction municipal civil engineering is reasonable in structural design, and because the foldable gear insertion rods are combined with the concrete mortar in drill holes, stability is improved.

The invention discloses a float tube type wave-activated generator, which comprises a sealed metal tube, as well as a rotor system, a stator system, a hanger spring and a slide rail all arranged in the sealed metal tube, wherein the stator system is arranged on an inner tube wall of the sealed metal tube; the rotor system is arranged on the slide rail positioned in a cavity formed by the stator system in an enclosing manner; the upper end of the slide rail is hung at the hanger spring arranged at the lower end of a sealing cover plate; the whole slide rail-rotor system is hung at the middle of the stator system; a slide rail balance weight arranged at the lower end of the slide rail enables the hanger spring to realize most active elasticity, and the slide rail-rotor system is enabled to reciprocate up and down in case of any slight wave fluctuation. According to the wave-activated generator disclosed by the invention, a linear electric generator, the hanger spring, the slide rail, a protection magnet and the balance weight are arranged in the sealed metal tube; through arrangement of the balance weight for a float tube, the float tube can always keep the upright state and suspends at a fluctuation layer with most active wave fluctuation; when multiple float tube type wave-activated generators are mounted in parallel, rigid supports are used for mutual supporting, so that distances between the wave-activated generators can be kept, collision can be avoided and large-scaled electricity generation can be formed.

The invention relates to a modified asphalt composition which comprises the following components in percentage by weight: 1-6% of a styrene-butadiene-styrene block copolymer, 0.1-0.4% of an ethylene-vinyl acetate copolymer, 1-3% of polystyrene, 1-2% of a melamine resin, 10-15% of a terpene resin, 1-5% of a transition metal oxide, 1-2% of calcium carbonate and the balance of matrix asphalt. According to the used addition modifier, structural chain fracture of a copolymer modifier under a rut load is avoided, and the dispersion morphology of a non-polymerized modifier in the asphalt body is promoted. The modified asphalt composition can maintain high strength and fatigue resistance while maintaining high elasticity of the asphalt.

The invention discloses an environment-friendly slope strengthening device for municipal construction, which comprises a hollow, long and straight barrel body, wherein an external thread is arranged on the outer wall of the barrel body; a bearing is fixed at the upper part of the inner wall of the barrel body; a guide rod is mounted on the inner ring of the bearing in an interference way; the guide rod and the barrel body are located on the same axis; a spiral part and a threaded part are arranged at the lower part of the guide rod from top to bottom in sequence; gear inserted rods are mounted on two sides of the barrel body; each gear inserted rod comprises a gear end and an inserted rod end, which are connected with each other; the gear ends are rotationally mounted on the barrel body through rotating shaft; and part of each gear end is located in the barrel body and engaged with the spiral part of the guide rod. The slope strengthening device is reasonable in structural design, and can improve the stability through combination of the gear inserted rods capable of being unfolded and concrete in a dilled hole.

The invention discloses a magnetic control valve. An air inlet valve element framework, a check valve element framework and an exhaust valve element framework of the magnetic control valve form an integrated valve element set with an air inlet valve element magnetic ring, a check valve element magnetic ring, an exhaust valve element magnetic ring, an air inlet valve magnetic sealing gasket, a check valve magnetic sealing gasket and an exhaust valve magnetic sealing gasket, the magnetic control valve uses magnetic attraction and repulsive force, the problem of spring elasticity failure is avoided, the sealing effect is kept, the service life of the product is prolonged, the magnetic control valve uses the magnetic sealing gasket, sealing pressure is increased, air pressure leakage is prevented, meanwhile, the low temperature resistance is improved, and extremely good sealing performance is still achieved at the extremely low temperature.

The invention discloses a pressure spring manufacturing aid. The pressure spring manufacturing aid comprises a support and an extrusion plate, wherein the extrusion plate is slidably connected with the support; the support comprises a supporting plate and supporting legs; the supporting legs are positioned on the bottom of the supporting plate; a fixing plate is arranged at the left end of the supporting plate; a supporting rod and a guiding rod are arranged on the fixing plate; the guiding rod is positioned above the supporting rod; an arc-shaped groove is formed in the fixing plate; a chute is formed in the supporting plate; the extrusion plate is provided with a guiding hole which is matched with the guiding rod and a through hole which is matched with the supporting rod; the extrusion plate is also provided with an arc-shaped groove; a hydraulic cylinder is arranged at the right end of the supporting plate and is provided with a piston rod, a pressure gauge, an oil inlet tube and an oil outlet tube; the piston rod is detachably connected with the extrusion plate; and the length of the supporting rod is smaller than that of the guiding rod. By the pressure spring manufacturing aid, the shortcomings that two ends of a pressure spring which is machined by the existing small equipment are straight ends and are required to be machined by an auxiliary device further, but equipment for machining hooks in markets is high in cost, complex in structure and low in safety factor are overcome.