48results about How to "Reduce chance of repair" patented technology

The invention relates to an LED (Light Emitting Diode) illumination intelligent control system which comprises a synchronous rectification unit used for providing direct-current power for at least two intelligent power control units, wherein the output end of each intelligent power control unit is connected with a corresponding LED light group unit via an electric wire; and the synchronous rectification unit is connected with each intelligent power control unit by a high-voltage direct-current bus. In the intelligent control system, stable constant-voltage direct current is provided for an LED illumination system by the synchronous rectification unit, so that the whole illumination system can operate under high power factor with less harmonic wave. the corresponding LED light group units are dynamically and precisely dimmed by the intelligent power control units, and the LED operation situation is detected in real time and communication with an external control center is carried out. The intelligent control system has the characteristic of reasonable structure, and is convenient to control, the working environment temperature of an LED light group can be improved, and the reliability and the service life of an LED illumination light can be improved.

The invention relates to a self-generating type streetlamp for generating power by utilizing the pressure difference and a use method thereof. The self-generating type streetlamp and the use method are characterized in that a vertical column of the streetlamp is internally provided with a plurality of wind-driven generators; the upper part of the vertical column is provided with an arc-surface wind cap; the vertical column is internally provided with a storage battery and an electric connection circuit; the vertical column is made of transparent material; and the northward part of the vertical column is provided with a salt layer. The use method comprises the following steps that airflow flows through the arc-shaped wind cap, the flowing speed is accelerated, the pressure is reduced, and the airflow with high pressure flows from bottom to top to form a gust of strong rising airflow; on the other side, the black salt layer in the vertical column absorbs heat of the sunlight, the heated air flows up to form another gust of strong rising airflow; the two gusts of strong rising airflow pushes the wind-driven generators in the vertical column to rotate and generate power for illumination of the streetlamp. The self-generating type streetlamp and the use method have the beneficial effects that since all the power generating facilities are arranged in the vertical column of the streetlamp, the maintenance probability is lower, so that the use cost is lower. The self-generating type streetlamp utilizes the black salt layer as a solar power generating facility, and has the advantages of low cost and long service life compared with a solar battery panel.

The invention discloses a bi-directional rotary grinding head of a retreading machine; the bi-directional rotary grinding head comprises a fixed plate, an outer rotary millstone, an inner rotary millstone and a middle shaft which is connected with a power unit; the inner rotary millstone is arranged on the middle shaft; a transmission device is connected between the middle shaft and the outer rotary millstone; the transmission device is a planetary gear train; the planetary gear train comprises a first sun gear, a first planetary gear and a first inner gear ring; the first sun gear is arranged on the middle shaft; the first planetary gear is arranged on the fixed plate; the first inner gear ring is fixedly connected with the outer rotary millstone; after the structure is improved, the inner rotary millstone is directly arranged on the middle shaft; and the outer rotary millstone acquires power through two stages of transmission, so that the structure is greatly simplified, and the manufacturing cost and the maintenance probability are reduced.

The invention discloses a structure capable of avoiding cold solder joint of elements. The structure comprises a printed circuit broad (PCB) used for being pasted with the elements. The PCB comprises a solder resisting layer, a copper foil layer and welding pads arranged on the copper foil layer. Welding feet of the elements are aligned to the lower ends of element bodies or higher than the lower ends of the element bodies. A sunken notch is formed in a position, corresponding to the lower portions of the element bodies, of the PCB. The sunken notch is provided with no solder resisting layer or the copper foil layer inside, or the sunken notch is provided with no solder resisting layer and the thickness of the copper foil layer in the sunken notch is smaller than that of the copper foil layer on the periphery of sunken notch. The invention also discloses a corresponding method for avoiding cold solder joint of the elements. The problem that void-welding of the elements is easy to occur due to the fact that the welding feet of the elements are higher than the element bodies is effectively solved.

The invention provides an overpressure-resisting pressure instrument which comprises an instrument main body, wherein a protecting shell made from stainless steel is detachably connected on the outer side of the instrument main body; the instrument main body comprises an instrument plate, an inner shell and a base in turn from top to bottom; a moveable pressure-resisting net is arranged at the upper end of the base; a sensor is arranged above the pressure-resisting net; the powder metallurgy is arranged above the sensor; the powder metallurgy is fixedly mounted on a powder metallurgy mounting body; the upper end of the powder metallurgy is fixedly connected with a copper tube through a damp bolt; a connecting loop sleeves the outer side of the copper tube; a terminal is arranged at the upper end of the connecting loop; under the shaking of the copper tube, the connecting loop is in contact with the terminal; the terminal also is connected with an intelligent meter for showing a measuring result. The overpressure-resisting pressure instrument has the beneficial effects that the instrument main body has two protecting wires in an overpressure measuring process due to the design of the protecting shell and the pressure-resisting net, so that the overpressure resistance of the instrument main body is promoted and the service life of the instrument main body is prolonged.

The invention discloses a corrosion-resistant and waterproof material which comprises a styrene-acrylic emulsion, bitumen, neoprene, butyl rubber, EPDM rubber, polyvinyl chloride, polyisobutene and polyurethane. All the components are mixed according to a ratio to obtain a mixture, and a construction position is coated with the mixture, so that the corrosion-resistant and waterproof effects are exerted. Compared with the prior art, the corrosion-resistant and waterproof material can not only have a waterproof effect, but also resist corrosion and strong acid, and can adapt to severe environments, and besides, the service life is prolonged, the maintaining probability is reduced, and the corrosion-resistant and waterproof material has popularization and application values.

The invention discloses an anti-settlement intelligent pipeline system. The anti-settlement intelligent pipeline system comprises a pipeline device, pipeline brackets used for supporting the pipelinedevice, a plurality of monitoring terminals used for sensing displacement deviation of the pipeline device and displacement compensation devices used for compensating displacement deviation of the pipeline device, wherein the pipeline device comprises at least one manhole and a plurality of drain lines, and each manhole is connected with the corresponding drain line; the monitoring terminals are used for sensing displacement deviation of the drain lines in a set direction and feeding back information to the displacement compensation devices; the displacement compensation devices are used for compensating displacement deviation of the corresponding drain lines in the set direction. According to the anti-settlement intelligent pipeline system, posture information of the brackets below pipelines can be obtained in real time, relevant conditions of underground pipelines are known conveniently, and produced position deviation can be compensated according to position information of the pipelines. The pipelines can be located in the optimal positions, the pipeline system works normally for a long time, and maintenance probability and cost are reduced.

The invention provides a household electrical appliance, an operation method thereof and an intelligent control method. The household electrical appliance comprises a case, a display panel, a light source module, a control unit, an operating state switching unit, a control switch and at least one action element in the household electrical appliance, wherein the display panel is arranged on the case and has a display area, the display area has at least two layers of superposed display interfaces, a plurality of display marks, which are different in both dimension and/or quantity, are arranged on different display interfaces, and the display marks on the different display interfaces are separately displayed under the irradiation of light of different wavelengths; the light source module is used for irradiating the display panel; the control switch is connected with the control unit; the control unit is connected with the action elements so as to control the action elements to perform corresponding operations through a control program when the control switch is triggered. The household electrical appliance provided by the invention has the characteristics that the interface is attractive, and the requirements on miniaturization can be met.

A carriage with an inner container comprises carriage stand columns, an upper edge beam, a lower edge beam and frame cross beams, the front ends and the rear ends of the upper edge beam and the lower edge beam are fixed to the upper ends and the lower ends of the carriage stand columns at the front end and the rear end of the carriage respectively, and the frame cross beams are fixed between the lower ends of the carriage stand columns at the left end and the right end of the carriage respectively. Outer box plates are fixed to the outer portions between the upper edge beam and the lower edge beam on the left side and the right side respectively. The carriage is characterized in that an inner smooth board is fixed to the inner side of the outer box plate, and a middle transition steel plate is fixed to the outer box plate at the lower end of the inner smooth board; a plurality of slope supporting plates are evenly arranged between the lower end of the middle transition steel plate and a bottom plate of the carriage at certain intervals, and smooth slope flat plates are fixed to the slope supporting plates. The interior of the carriage is smooth and not prone to bonding, the service life of the carriage plate of the vehicle is prolonged, use is convenient, unloading is easier, cost is lower, and popularization is easier.

The invention discloses a mechanical pile-clamping case, and relates to a main component of a static pile press. The mechanical pile-clamping case comprises a pile-clamping case main body the upper end of which is connected with a main press cylinder, a round wokpiece pile hole is formed at the center of the pile-clamping case main body, two pairs of movable integrated jaws which are connected with the main press cylinder are arranged in the pile-clamping case main body symmetrically, and movable blocks are arranged on the movable integrated jaws, one end of each movable block is in rotary connection with one movable integrated jaw, and the other end of each movable block is provided with a spring. The mechanical pile-clamping case provided by the invention has the advantages of simple manufacture process, low cost, stable performance, convenience in maintenance, long service life, and low cost which is reduced by 40% as compared with that of the traditional pile-clamping case, completely eliminates the problems of pile breakage and slippage, has low maintenance probability, has prolonged service life, is in no need of jaw replacement when applied to piles in various specifications, and is simple and convenient to operate, and the jaw service life is also prolonged.

The invention discloses a single hydraulic prop for mines. The single hydraulic prop for mines include an oil cylinder, movable rods, sleeves, a top cover, a base, a three-use valve and handles, wherein movable rods are sleeved in the sleeves, the base is arranged at the one end of the oil cylinder and handles are arranged on the other end of the oil cylinder, the movable rods are provided with installation portions. Connection portions which match with installation portions in an embedded mode are arranged on sleeves. Sleeves are sleeved outside the movable rods of the single hydraulic prop for mines by connection portions so that the movable rods are protected effectively, damages to the single hydraulic prop due to firecracker are avoided, sleeves have corrosion resistance, the service life of the single hydraulic prop can be extended greatly and environmental pollution is avoided during manufacturing.

The invention discloses a quantitative open hydraulic drive system of an off-road scissors fork high-altitude operation platform, which comprises a front drive, a rear drive, two quantitative pumps and a hydraulic control system. Each of the front and rear drives is provided with two hydraulic driving wheels, comprising a front left wheel, a front right wheel, a rear left wheel and a rear right wheel; four drive modes of disposable control in the hydraulic control system are I-gear forward/reverse drive mode, II-gear forward/reverse drive mode, III-gear forward/reverse drive mode and differential forward/reverse drive mode. The quantitative open hydraulic drive system of an off-road scissors fork high-altitude operation platform realizes the four-wheel differential lock function rarely available in the existing market, including the central differential, the front axle differential, and the rear axle differential function, which greatly reduces the equipment manufacturing cost.

The invention discloses waterproof building material composition. The building material composition is prepared from the following components in parts by mass: 30-40 parts of ordinary Portland cement,10-20 parts of acrylate, 10-20 parts of modified diatomite, 5-10 parts of polyurethane, 5-10 parts of calcium lignosulphonate, 5-10 parts of chlorinated polyethylene resin, 2-5 parts of diatomite, 2-5 parts of nano-silica, 2-5 parts of fly ash, 2-5 parts of quartz sand, 2-5 parts of desulfurized rubber powder, 2-5 parts of latex powder, 2-5 parts of sodium methylenebisnaphthalenesulphonate, 1-3 parts of rubber oil, 1-3 parts of hydroxypropylmethyl cellulose, 1-3 parts of nano antimony tin oxide and 1-3 parts of a stabilizer. The composition has the benefits that a better waterproof effect canbe achieved, the service life can be prolonged and the maintenance probability can be reduced, so that the composition has popularization and application value. Meanwhile, the composition adopts a simple formula, and is low in cost, excellent in performance and suitable for large-scale production.

The invention discloses an improved gas furnace manhole plug and a gas furnace adopting the improved gas furnace manhole plug. The improved gas furnace manhole plug has low operation weight, reduces maintenance probability and does not influence working of the gas furnace. The improved gas furnace manhole plug comprises a manhole plug body. The manhole plug body has a hollow structure. Walls of the manhole plug body are made of steel plates. The manhole plug body is provided with connection pipes. The connection pipes are communicated with an inner cavity of the manhole plug body.

A motor device for fixing a driving magnet is used in a motor of a pump device, and a position, near to an outer side of an inner peripheral edge in a radius direction, on an end surface (422) of the other side of the driving magnet (42) and a protruding groove are embedded to form fixing.