30results about How to "Guaranteed usage period" patented technology

The present invention is directed to methods and compositions that are useful in producing, feeding and growing animals. Compositions of the present invention comprise an extracted mineral element composition as disclosed herein. Animal lifespan and production is improved when provided with compositions comprising an extracted mineral element composition.

A mouse pen and a photoelectric control switch thereof are provided, the photoelectric control switch includes a control rod in a shell moving between on-position and off-position, an optical coupling sensor comprising a light emitter and light receiver disposed on an extension line of the control rod, and an elastic element for resetting the control rod. The control rod includes a first end near the optical coupling sensor and equipped with a reflection element, and a second end for driving the control rod towards the optical coupling sensor which protrudes an orifice of the shell; at the on-position, light emitting from the light emitter is received by the light receiver after being reflected by the reflection element, while at the off-position, light cannot be received. The photoelectric control switch implements non-contact on/off controlling with the optical coupling sensor and the control rod, responses sensitively, and has longer lifetime.

A chassis device of an electric wheelchair includes a frame unit, a linking unit, a wheel unit and a power unit. The frame unit is provided with a first arrangement of a bottom border which is provided with a first pin joint point, a second arrangement of a standing post which is provided with a second pin joint point and the second arrangement of the standing post of a third pin joint point. The linking unit is provided with two connecting rod groups, which are respectively arranged at two sides of the frame unit. The first connecting rod group is provided with an upper rocker which is articulated at the third pin joint point and extends forwards and backwards, a lower rocker which is articulated at the second pin joint point and extends forwards, a bottom rod which is articulated at the first pin joint point and extends backwards and a back rod which is articulated with the upper rocker and the bottom rod. The bottom rod and the back rod are used to absorb the oblique angle of the rod, which is caused by the up and down swing to bring comfort to the sitting person.

The invention relates to the technical field of flameproof surface treatment processes, and in particular relates to a flameproof surface phosphating process for electrical equipment. The process comprises the steps of preparing phosphating slurry: accommodating warm water with a plastic container, sequentially adding basic copper carbonate, nitric acid, phosphoric acid, zinc oxide, hexamethylene tetramine, sodium fluoride and zinc nitrate, and adding the prepared phosphating solution into talc powder to form paste; brushing the prepared phosphating solution slurry on a flameproof surface in a manner that the thickness of the slurry is not less than 2mm; ensuring the retention time of the phosphating solution slurry on the flameproof surface according to the ambient temperature and the following standards, and wiping the phosphating solution slurry on the flameproof surface, thus phosphating the flameproof surface, namely forming a layer of phosphating film on the flameproof surface. The flameproof surface treated through the phosphating process provided by the invention can not be rusted over more than two years, so that the use safety of underground equipment is greatly improved.

The invention relates to a battledore handle and a manufacturing method thereof, belongs to the athletic sports appliance industry, and in particular relates to a battledore handle of a novel structure and a manufacturing method of the battledore handle. The battledore handle comprises a front cone and a carbon fiber handle, wherein a center hole is formed in the middle of the front cone; and grooves are designed in the upper and lower surfaces of the front cone. The manufacturing method comprises the following steps: filling cut PU foam materials in the two sides and grooves of the front cone, coating carbon fiber composite material prepreg cloth coated with resins on the exterior, inserting a front cone positioning pin into the center hole of the front cone so as to complete front cone preforming; and coiling the carbon fiber handle by using the cut carbon fiber prepreg cloth, and coating the front cone and the carbon fiber handle layer by layer by using the carbon fiber prepreg cloth, so that the front cone and the carbon fiber handle are tightly connected together, and an integrated battledore handle is formed. According to the application of the manufactured battledore handle disclosed by the invention on the battledore, the shock absorption performance of the front cone part of the battledore handle is increased, the strength of the battledore handle is stable, the precision is high, the stability of the battledore frame is effectively improved after ball hitting, the shock reduction performance of the battledore is improved, and sports injuries are reduced.

An umbrella frame has a lower runner, a main shaft, an upper runner, and a plurality of stretching frames. Each stretching frame has a stretcher, a connection plate, an elastic rod, a connector, a distal rod, a long rib, and a short rib. The connection plate has a first end protrusion and a second end proton. The connector has an end notch, an end hole, and a lower protruded block having a circular hole. The long rib has an end protruded block inserted in the circular hole, an inner protruded bar having a first through aperture, and an outer protruded bar having a second through aperture. The elastic rod is inserted through a spacing defined by the upper pressing bar and the long rib The short rib has a distal protruded block, an upper protruded bar having a round aperture, and a lower lobe having a circular aperture. The elastic rod has two end hooks. The elastic rod is hooked in the end notch and the round aperture. The distal protruded block is inserted in the first through aperture. The second end protrusion is inserted in the second through aperture. The distal protrusion is inserted in the circular aperture.

The invention provides a geometrical structure of a trolling nylon braided line and a method for measuring the mechanical property thereof, and relates to the measurement of the trolling nylon braided line. The method comprises sampling, conditioning balance, geometrical structure and mechanical property test, and is characterized in that: the samples are selected from more than 6 cm away from the tail end of the line; the dry-state sample undergoes the conditioning balance for 5h at a temperature of between 16 and 20 DEG C and a humidity of between 57 and 63 percent, and the wet-state sample is soaked for 5h at a water temperature of between 16 and 20 DEG C; the nylon braided line sample is arranged on upper and lower pneumatic ring clamps of a strength tester, and stretched until broken under conditions of the test distance of 1.20 m and the stretching speed of 120 mm/min; the nylon single filament is arranged on upper and lower pneumatic flat-opening clamps, and stretched until broken under conditions of the test distance of 270 mm and the average broken time of 16 to 20s; and in the test, the effective measurement time is 30, and the average value, coefficient of mean deviation and coefficient of variation are worked out. The geometrical structure and the method are used for measuring the mechanical property of the geometrical structure of the trolling nylon braided line.

The invention relates to a catalytic combustion device. The catalytic combustion device comprises a combustor, a heat exchanger, an exhaust gas filter, a fan and a chimney, wherein the exhaust gas filter is connected to an air inlet of the fan, an air outlet of the fan is connected to a gas inlet of the heat exchanger, a gas outlet of the heat exchanger is connected to a gas inlet of the combustor through a flue, a gas outlet of the combustor is connected to the chimney through the heat exchanger, flue gas from the combustor is connected to the chimney through a pipeline, the connecting pipeline passes through the heat exchanger, and a catalytic bed is mounted in the combustor. According to the catalytic combustion device provided by the invention, an exhaust gas filter sheet frame is mounted at the inlet of the exhaust gas filter. The exhaust gas filter sheet frame can fully filter liquid drops in gas and entrained solid small particles to guarantee that gas passing through an ionization chamber does not contain any liquids or particle dust, so that the degree of purification of gas is guaranteed and the service life of a purifier is guaranteed, too.

The invention discloses an outdoor prefabricated substation which comprises a frame, the frame is provided with an external support, a filter layer is arranged in the support, arc-shaped anti-collision beams are symmetrically arranged outside the support, anti-collision rods are connected between the anti-collision beams, the ends of the anti-collision beams are hinged to the rod ends of cylinderbodies, the cylinder bodies are fixedly connected to the frame, and baffles are arranged outside the anti-collision beams. Shielding plates are arranged at the upper parts and the lower parts of the baffles. A fan is arranged on the lower shielding plate in a penetrating mode through a cylinder frame, a folding plate is arranged between the anti-collision beams and the frame, preassembled supporting legs are arranged at the bottom of the frame, positioning bases are arranged on the inner sides of the supporting legs, four snow accumulation preventing roofs inclining downwards are arranged at the top of the frame, and a door plate and a back plate are movably arranged on the front side and the rear side of the frame respectively. Elements are convenient to install and overhaul through the back plate and the door plate, the anti-collision beams avoid frame deformation damage caused by external force collision, a filter layer reduces dust and water content of entering air, the fan ensuresair in the frame box body to be communicated with the outside, internal temperature is reduced, the supporting legs are used for pre-installation, and a positioning seat is convenient to position, install and fix.

A storage device for a small thermos bottle used in a kitchen includes a first square basket, one end of the first square basket is fixedly provided with a second square basket. The first square basket and the second square basket are connected through a fastening device. The fastening device comprises a semicircular lock body arranged on a top surface of first square basket, the top surface of the second square basket is provided with a semicircular fastener body which is coincident with the shape of the semicircular fastener body, the semicircular lock body is provided with a connecting piece slidably embedded into the semicircular buckle body, the connector is connected in the semicircular lock body through a connecting spring. A follow rod communicating with that outside through the circumferential wall of the semicircular lock body is fixed on the connector, the circumferential wall of the semicircular lock body is provided with an arc-shaped track groove through which the followrod slides, and a driving locking mechanism for driving the connector sliding into the semicircular buckle body is arranged on the second square basket. The storage device can store a plurality of thermos bottles, and can be arranged in a flat and folded state according to the shape of the kitchen space.

The invention belongs to the technical field of C09D coatings, and particularly relates to a thin, transparent and flash anti-shrinkage top-coat as well as a preparation method and a use method thereof. The invention relates to a thin, transparent and flash anti-shrinkage top-coat, which is prepared from the following raw materials: a component A and a component B, the weight ratio of the component A to the component B is 1: (0.1-0.5); in the preparation process of the thin, transparent and flash anti-shrinkage varnish prepared by the invention, through the mutual synergistic effect of the dispersing agent, the defoaming agent, the flatting agent and the hand feeling additive, the problem of bubbles possibly occurring in the preparation process can be solved, and the problems of construction difficulty and possible pinhole phenomenon on the surface of solid wood in the construction process are solved; the thin, transparent and flash-proof shrinkage varnish provided by the invention has excellent stability, especially has excellent transparency and gloss retention in the long-time placement and use process, and is suitable for industrial production.

The invention relates to a PVC (polyvinyl chloride) formula which is prepared from the following raw materials in parts by weight: 50-70 parts of high-polymerization-degree PVC resin, 30-50 parts of low-polymerization-degree PVC resin, 100 parts of high-polymerization-degree resin and low-polymerization-degree resin, 30-40 parts of a dioctyl phthalate (DOP) plasticizer, 1-3 parts of an organic tin heat stabilizer, 0.5-1.5 parts of a G70S lubricant, 1-2 parts of tetrakis [beta-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester, 1-2 parts of 2-hydroxy-4-N-octyloxybenzophenone, 0.1 part of octadecanamide, and 1-3 parts of a processing aid. The invention has the beneficial effects that the plasticizing temperature during PVC processing is reduced, the melt viscosity is reduced, the plasticizing processing performance of the material is improved, and the surface quality of the product is improved. moreover, the aging resistance and oxidation resistance of the PVC product are improved, the failure process of the PVC product is slowed down, the service life of the product is guaranteed, and the PVC product is low in cost and suitable for popularization and application.