128results about How to "Small rebound" patented technology

The invention discloses a method for manufacturing a heat-resistant aluminum alloy wire for a power cable, and belongs to the technical field of design and manufacture of power transmission lines. The aluminum alloy wire uses magnesium, copper, iron, silicon, boron, cerium-rich rare earth, zirconium, yttrium, cobalt and the like as alloying elements. The manufacturing process for the aluminum alloy wire comprises the following steps: adding the alloying elements into fused aluminum of a shaft furnace, casting the mixture after smelting into a cast strip and thermally rolling the cast strip, then performing cold-drawing processing, annealing in the cold-drawing process, adopting recrystallization and thermal treatment before final cold-drawing, and later performing trace cold-drawing processing. The aluminum alloy wire not only has good bending resistant performance and forming performance, but also has high conductivity and good heat resistance (comprising high-temperature creep resistance), and can ensure the stability of electrical connection under both normal temperature and high temperature.

The invention discloses an LCP (Liquid Crystal Polymer) or fluoride polymer high-frequency high-transmission double-sided copper clad laminate which comprises a first copper foil layer, a second copper foil layer, a first very low dielectric glue layer and at least one insulating polymer layer, wherein the first very low dielectric glue layer is positioned between the first and second copper foillayers; the Rz value of the inner surfaces of the first and second copper foil layers is 0.1-1.0 micron; the insulating polymer is at least one of a first LCP polymer layer or a first fluoride polymerlayer; the first very low dielectric glue layer is a glue layer with a Dk value of 2.0-3.5 and a Df value of 0.002-0.010; the first polyimide layer is an insulating polymer layer with a Dk value of 2.20-3.50 and a Df value of 0.002-0.010. The double-sided copper clad laminate and the FPC disclosed by the invention have excellent electrical properties and also have cost advantages, short manufacture procedure processes, low thermal expansion coefficients, stable dk/df performances in high-temperature and humidity environments, ultra-low water absorption rate, excellent UV laser drilling abilities, low rebound, suitableness for high-density assembly and excellent mechanical properties.

An efficient wall drilling machine comprises a base, a first cylinder is arranged on the base, and a piston rod of the first air cylinder is fixedly connected to the lower side of a rotating device; fixing frames are arranged on the two sides of the rotating device, and a telescopic scale rod is fixedly connected between each fixing frame and the base; the upper end of the rotating device is connected with a fixing base, and a sliding groove is formed in the horizontal direction of the fixing base; a drilling device is slidably connected with the interior of the sliding groove, and a damping device is connected to the vertical direction of the fixing base; the damping device is connected with a second cylinder, and a piston rod of the second cylinder is connected with the drilling device;a hollow connecting pipe is fixedly connected to the upper end of the fixing base, and a scale rod is inserted into the front end of the connecting pipe; the scale rod is fixed into the connecting pipe through a locking bolt, and a vacuum suction cup is arranged at the front end of the scale rod. The drilling machine is reasonable in design, the working efficiency can be effectively improved, thedrilling positioning precision and quality are improved, and the flexibility and the safety are achieved.

The invention relates to an in-ear angle adaptive earphone. The in-ear angle adaptive earphone includes an earphone shell, a sound guide unit and an adaptive adjustment part; one end of the sound guide unit is a connecting end and is rotatably arranged on the earphone shell; the other end of the sound guide unit is an in-ear free end; a sound guide channel which passes through the connecting end and the free end of the sound guide unit is arranged in the sound guide unit; the adaptive adjustment part is arranged between the earphone shell and the connecting end of the sound guide unit; when the sound guide unit is externally stressed and rotates relative to the earphone shell, the adaptive adjustment part abuts against the connecting end of the sound guide unit and is deformed, so that the sound guide unit can be maintained in a rotation position; and after an external force disappears, the adaptive adjustment part is rehabilitated, so that the sound guide unit can be reset to an original position. When the in-ear angle adaptive earphone of the invention is used, the sound guide tube and the earphone shell of the earphone can rotate relatively, and the sound guide tube can be automatically maintained at a certain rotation angle through the adaptive adjustment part, and therefore, the ear canal of a user will not be stressed, and the earphone can be tightly combined with the ear canal, so that a sound insulation effect can be enhanced.

The invention relates to the technical field of elevator equipment, in particular to a buffer device of an elevator lift car. The problem that an existing elevator is poor in buffering effect is solved. The device comprises an elevator pit body, an elevator lift car, a split type buffer and a buffer base, wherein the buffer base is provided with a plurality of arc-shaped sliding blocks through a sliding guide structure, and the arc-shaped sliding blocks are distributed in the circumferential direction to surround a conical channel; the circumferential outer sides of the arc-shaped sliding blocks and the buffer base are connected through a horizontal buffering structure, a buffer circular table is inserted into the conical channel, an arc-shaped groove is formed in the center of the upper end of the buffer circular table, and a safety air bag corresponding to the arc-shaped groove is arranged at the bottom of the elevator lift car; and the safety air bag is connected with an air inflation structure, a speed sensing module is arranged in the elevator lift car, the speed sensing module is connected with a MCU module, and the MCU module is connected with the inflating structure. The device has the advantages of being good in buffering and vibration reduction effects, small in rebound force, simple in structure, and easy to maintain.

The invention provides a resin composition and an application thereof. The resin composition comprises the following components in parts by weight: 100 parts of alkali-soluble resin, 5-30 parts of acrylate monomer, 0.1-10 parts of photoinitiator, 10-30 parts of first epoxy resin and 0-15 parts of second epoxy resin, wherein the first epoxy resin is low-dielectric epoxy resin with a dielectric constant less than 3.5, and the second epoxy resin is different from the first epoxy resin. By adding the low-dielectric epoxy resin with the dielectric constant less than 3.5 and adjusting the ratio of all the components, the dielectric constant and the dielectric loss are remarkably reduced, the dielectric constant is reduced to 3.0 or below, and the dielectric loss is reduced to 0.008 or below. Inaddition, the resin composition has the advantages of good heat resistance, good resolution, small rebound force, and relatively good flexibility and bending resistance. Meanwhile, the resin composition is a photosensitive resin composition, and can realize image transfer through photosensitive development.

The invention discloses a stainless steel television frame forming process. The stainless steel television frame forming process comprises the following steps of 1, conducting blanking; 2, forming a groove in a to-be-bent position of a material through planing; 3, bending the material along the groove planed in step 2; 4, conducting cutting, wherein the boundary dimensions of each frame are made to reach the design requirement; and 5, welding structural components. By means of the stainless steel television frame forming process, location and connection of all the frames can be conducted conveniently; after being formed, a product is great in stability; and the produced frames are good in straightness and attractive in appearance.

The invention relates to the technical field of arrangement of spraying nozzles during cleaning, in particular to a spraying nozzle for rotating to clean deep holes and a cleaning method for a high pressure cleaner. The spraying nozzle comprises a spraying nozzle head body, the spraying nozzle head body is provided with two spraying holes and two fan-shaped flow guiding grooves, the cross sectional area of a single fan-shaped flow guiding groove is roughly a half of that of a gun body flow guiding hole, high pressure water flowing to the fan-shaped flow guiding grooves from a high pressure spraying nozzle gun body is contracted so as to reduce bounce of the high pressure water, the spraying holes are vertical to the flow guiding grooves, each spraying hole corresponds to one flow guiding groove, and the depth of the spraying holes is increased so that the amplitude angles of the sprayed flow from the spraying holes are smaller than 5 degrees. The sprayed flow angles from the spraying holes are small, so that the stress is centralized, large impact forces can be generated, good cleaning effects are achieved, when deep holes and blind holes are cleaned, one rotating period, same position and two-time cleaning are achieved, and the cleaning efficiency is increased.

The invention discloses white ink with high reflectivity. The white ink is prepared from the following raw materials in parts by weight: 3 to 8 parts of polyester resin, 1 to 6 parts of organic silicon resin, 10 to 30 parts of titanium dioxide, 2 to 4 parts of ultraviolet absorbent, 2 parts of accelerant, 10 parts of tripolymer curing agent, 0.5 part of gaseous silicon dioxide, 0.05 part of fluorine surfactant, and 30 parts of solvent. The invention also discloses a preparation method of the white ink with the high reflectivity and application in a flexible copper-coated plate. By adopting thewhite ink with the high reflectivity produced in the invention, the white ink with high performance can be directly smeared on a single-surface FCCL base material to form a special base material foran LED, so that the downstream process can be saved, the efficiency can be improved, and the commercial value is relatively high.

This invention relates to a heat-isolating Aluminum curtain wall profile including an Al alloy curtain wall profile and a heat-isolating profile which is set at both sides of the Al curtain wall adjacent to a curtain wall glass, top press plates are set in the insides of the airproof inlaid groove, incline or an incline slot is set at either end of the heat-isolating profile and matched to the convex of the top press plate, and the two ends of the heat-isolating profile are inlaid in the groove of the top press plate, which presses on the incline or the incline slot at the end of the heat-isolating profile to connect the curtain profile with the heat-isolating profile.

The invention provides a forging and stamping device for metallurgy casting of a textile equipment support frame, and relates to the technical field of metallurgy casting. The forging and stamping device comprises a base, the top of the base is welded to the bottom of a supporting column, a limiting plate is welded to the side wall of the supporting column, the top of the supporting column is welded to the bottom of a top plate, a motor and a fixing block are fixedly arranged at the top of the top plate, and a cutting board is welded to the top of the base and located at the bottom of the limiting plate. According to the forging and stamping device for metallurgy casting of the textile equipment support frame, two hammerheads are arranged, furthermore, a first rotating shaft and a second rotating shaft are correspondingly positioned at the positions, which are farthest away from each other, of the front surface of a first rotating plate and the front surface of a second rotating plate,when a first lifting rod moves downwards, a second lifting rod moves upwards, and the two hammerheads are alternately hammered an object to be forged and stamped, so that the hammering speed of the object to be formed and stamped is effectively improved, and the forging and stamping work efficiency is improved.

The invention provides a flexible circuit board and a liquid crystal display applying the same. The flexible circuit board comprises a main body circuit board, a light bar circuit board and a connecting circuit board. The light bar circuit board comprises a plurality of light-emitting elements. The connecting circuit board is connected with the main body circuit board and the light bar circuit board. The connecting circuit board comprises a plurality of penetrating holes, and vertical projection of each light-emitting element at the connecting position of the connecting circuit board and the light bar circuit board is overlapped with at least a part of vertical projection of at least one penetrating hole at the connecting position of the connecting circuit board and the light bar circuit board. By adopting the flexible circuit board and the liquid crystal display, the penetrating holes are arranged on the connecting circuit board to decrease elastic force produced by the flexible circuit board in bending. Furthermore, due to the fact that positions of the penetrating holes correspond to the positions of the light-emitting elements, the elastic force of a part of connecting circuit board corresponding to the light-emitting elements is not smaller than that produced by other portions even if the flexible circuit board produces the elastic force, and the light-emitting elements do not easily float from the liquid crystal display.

The invention discloses a subway rail damping device which comprises a rail. A bottom pad is arranged at the lower end of the rail, supporting plates are arranged at the lower end of the bottom pad, supporting rods are fixedly connected to the lower ends of the supporting plates, sleeves are arranged at the lower ends of the supporting rods, first grooves are formed in the sleeves, the supportingrods are slidably installed in the first grooves, and the supporting rods can slide up and down in the first grooves to drive the supporting plates to move up and down. The lower ends of the sleeves are integrally connected with bottom cylinders, second grooves are formed in the bottom cylinders, the lower ends of the supporting rods are integrally connected with bosses, the bosses are installed in the second grooves in a sliding mode, the diameter of the bosses is larger than that of the first grooves, first springs are arranged on the outer sides of the sleeves, one ends of the first springsare fixedly connected to the lower ends of the supporting plates, and the other ends of the first springs are fixedly connected to the bottom cylinders. Through the arrangement of the first springs,the downward moving speed of the supporting plates can be decreased through the first springs, the buffering effect on the rail is achieved, when a subway vehicle encounters an uneven road section, the first springs can further achieve the damping effect, and stable running of the subway vehicle is guaranteed.

The invention discloses waxy wheat dough balls and a preparation method thereof. Main materials of the waxy wheat dough balls are flour and water, and each 100 parts of flour contains 40-95 parts of waxy wheat flour, 5-60 parts of medium-gluten or high-gluten common wheat flour and 40-120 parts of water; the waxy wheat dough balls also comprise 0-10 parts of auxiliary materials, wherein the auxiliary materials are one or multiple of edible salt, edible oil, seasoning and animal protein. Through mixing medium-gluten or high-gluten common wheat flour and waxy wheat flour, the excellent protein quality of medium-gluten or high-gluten common wheat and the excellent starch quality of waxy wheat flour are combined, so that the excellent elasticity of medium-gluten or high-gluten common wheat and the outstanding characteristics of easiness in gelatinization, high transparency and small breakdown value of waxy wheat are combined, and the high-quality dough balls with transparent color and tough, chewy and smooth mouthfeel can be prepared.

The invention relates to a carbon fiber reinforced self-temperature-measurement composite cable with aluminum alloy conductors. An elastomer is arranged among a plurality of conductors coated with insulating layers, and the section of the elastomer is a quadrangle, four sides of which are concave to be cambered; a carbon fiber reinforced core is arranged at the inner side of the elastomer; a belting layer and a jacket layer coat the outer sides of the four conductors coated with the insulating layers in sequence, a plurality of through holes are annularly distributed on the inner edge of the jacket layer, and the sections of the through holes are elliptic; an optical unit is arranged in a gap between the conductors and the belting layer, and at least one optical fiber is a grating fiber marked with temperature-measuring grating. The carbon fiber reinforced self-temperature-measurement composite cable has the following beneficial effects that the carbon fiber reinforced self-temperature-measurement composite cable has larger intensity and can better replace a copper conductor cable; and communication and real-time cable temperature monitoring can be both realized.

The invention discloses a high-bonding-strength LCP substrate, which comprises at least one copper foil layer, at least one low dielectric glue layer and an LCP layer, wherein the low dielectric gluelayer is located between the copper foil layer and the LCP layer and bonds the copper foil layer and the LCP layer; the low dielectric glue layer is a glue layer with a Dk value of 2.0-4.0 and a Df value of 0.001-0.010; the LCP layer refers to an LCP layer with a Dk value of 2.5 to 4.0 and a Df value of 0.001 to 0.010; the sum of the proportions of the component A is 0-50% (weight percentage) of the total solid content of the low dielectric glue layer; and the component B is 5-80% (weight percentage) of the total solid content of the low dielectric glue layer. According to the LCP substrate provided by the invention, the low dielectric glue layer is added between the copper foil layer and the LCP layer, and the formula and the performance of the LCP substrate are improved, so that the bonding strength between the LCP layer and the copper foil layer can be improved, the copper foil layer with a relatively low Rz value can be selected, and signal loss is not easily caused during high-frequency and high-speed transmission; in addition, the low dielectric glue layer has low dielectric constant and low dielectric loss, and is beneficial to high-frequency and high-speed transmission.

The invention relates to the technical field of door-closing buffering, in particular to a door-closing buffer assembly. According to the door-closing buffer assembly, a decoupling device is provided with a first clamping piece position and a second clamping piece position, the first clamping piece position is defined by an elastic baffle and three sides of a protrusive component, and the second clamping piece position is formed by the concave portion of the protrusive component; a shifting member moves along a groove opposite to the decoupling device, the decoupling device rotates, and the shifting member is disposed in the first clamping piece position or the second clamping piece position alternatively. According to the door-closing buffer assembly, a door can return after being opened or closed through tensile force provided by a spring, and the collision strength can be adjusted through coordination of a damping device and a limiting device when the door is opened and closed. The door-closing buffer assembly is further provided with the decoupling device, the decoupling device is provided with the first clamping piece position and the second clamping piece position, and the decoupling device can rotate, so that the limiting device is buckled with the first clamping piece position or the second clamping piece position alternatively, and mounting is convenient.

The invention provides an impact-resistant and anti-rebound sliding rail which comprises a static rail and a movable rail. The static rail comprises a top plate I, a base plate I and side plates I forming a sliding groove and is provided with a static rail first end and a static rail second end, and the static rail first end is used for installing a first pulley. The movable rail comprises a top plate II, a base plate II and side plates II, the top plate II downward extends to form an upturned edge. The movable rail is provided with a movable rail first end and a movable rail second end, the movable rail first end is used for installing a second pulley, at least two protrusions playing an impact-resistant buffering effect are formed on the inner wall of the top plate II and are of asymmetric structures, and the separation distance between the two adjacent protrusions is preset. A downward protruding stop portion I is formed on the inner wall of the top plate I, an upward protruding stop portion II is formed on the inner wall of the base plate II, the stop portion I and the stop portion II are located at the second end of the static rail, and a limiting portion for preventing the movable rail from rebounding and regressing is arranged on the inner wall of the top plate I in a protruding mode and is an elastomer of an asymmetric structure.

This is an intelligent toilet and its using method.

The invention discloses a folding supporting back plate, a display panel and electronic equipment, and mainly aims to improve fatigue resistance of the folding supporting back plate. The folding supporting back plate comprises a folding part, wherein a contact surface of the folding part is attached to a folding area of a display screen, the folding part comprises a plurality of supporting strips,the supporting strips are arranged in the bending direction of the display screen, every two adjacent supporting strips are connected, and a gap is formed between every two adjacent supporting strips. The folding supporting back plate is advantaged in that when the folding part is bent, the gap is formed between every two adjacent supporting strips, so the rebound force of the folding part can beeffectively reduced, folding is facilitated, direct folding of the rigid supporting strips is avoided, and the fatigue resistance of the folding supporting back plate is improved.

The invention discloses an ultrathin white covering film and an LED substrate using the white covering film, the ultrathin wite covering film comprises a white ink layer and an adhesive layer, whereinthe white ink layer is located on the upper surface of the adhesive layer; the total thickness of both the white ink layer and the adhesive layer is 4 to 50 [mu]m, wherein the thickness of the whiteink lay is 1. 25 [mu]m, and the thickness of the adhesive layer is 3 to 25 [mu]m; The white ink layer comprises a composition of an organic pigment and a white filler, at least one of an inorganic pigment and an organic pigment, the inorganic pigment being a white pigment or a grey pigment, the organic pigment being a highly transparent polymer, and the white filler being at least one of silicon dioxide, titanium dioxide, alumina and alumina. The ultrathin white coating film has extremely low dielectric constant and loss, extremely high ion purity, high reflectivity, high temperature yellowingresistance, low penetration rate, low gloss, high flexibility, low rebound force, high surface hardness and good weather resistance, and is particularly suitable for use in LED lighting with high performance of a soft-hard combined plate.