126results about How to "Common material" patented technology

The invention discloses a three-electrode integrated electrochemical sensor based on a microelectrode array. The sensor comprises the bismuth film modified microelectrode array (gold working electrode), a silver/silver chloride electrode (reference electrode) and a platinum electrode (counter electrode). The three electrodes are prepared through a standard MEMS technology, and multiple discs at equal intervals are evenly distributed on the gold electrode to serve as the microelectrode array. In the electrochemical detection process, heavy metal gathering and dissolving-out reacting occur on the microelectrode array, and the surface of the microelectrode array is modified with a bismuth film in order to increase the detection type of heavy metal and expand the detection range of the heavy metal. The surface of the silver electrode is electroplated with silver chloride to form the Ag/AgCl reference electrode. The platinum electrode serves as the counter electrode and forms an access with the working electrode. Difference pulse stripping voltammetry is utilized for determining the concentration of the heavy metal, and a result shows that the sensor is high in detection sensitivity, low in detection limit and high in signal-to-noise ratio; the sensor is easy and convenient to operate, needs a small quantity of samples, can be used for rapidly detection heavy metal on site and is capable of efficiently monitoring environmental pollution in real time.

The invention relates to a construction method for a hanging part of an anti-collision guardrail on an expressway. The construction method comprises the steps that (1) a total station is pre-used to accurately set out the inner side line of the hanging part of the anti-collision guardrail; (2) a ground anchor steel bar is buried on a top plate of a prefabricated box girder, and is fastened with a bottom reinforcing steel tube and an inclined strut steel tube by using a fastener connecting manner, so as to stabilize an inner side template; (3) an outer side template is taken in place by using auxiliary hoisting equipment; (4) a mortar band, which is 2.4cm in height and 5cm in width, is built on the inner side of the inner side template before the inner side template is mounted; and (5), after the templates of the anti-collision guardrail are mounted, a mixer truck is used to be matched with a gantry crane to hoist concrete into the templates, and an immersion vibrator is used to vibrate the concrete, so as to guarantee that the concrete is solid, the color and the lustre are uniform after the templates are detached, and the linearity is attractive. The templates of the anti-collision guardrail disclosed by the invention are simple in structures, materials are ordinary, the processing is convenient, and the cost is lower.

The invention discloses a multi-effect vertical plate falling film solar desalination unit and a method thereof. The device body consists of a seawater storage tank, metal clapboards, sealing rubber, a high concentration seawater storage tank, a fresh water storage tank, pulleys, a reflector, a glass plate and liquid absorbing cotton cloth. The direct radiation, scattering radiation and reflecting radiation of the sun are absorbed by a solar absorption surface and are converted into heat, the heat is absorbed by seawater uniformly distributed in the liquid absorbing cotton cloth for falling film evaporation, generated vapor is condensed into fresh water on a condensing surface, released latent heat is absorbed by the next effect of seawater, and the latent heat is repeatedly used to improve the fresh water yield in a unit daylighting area. Except solar energy, fuels and motors are not required, and the device is simple in structure, convenient to operate, high in start speed and high in water yield, and is particularly suitable for sea islands, deserts, ships and remote areas lacking electricity.

The invention relates to a multifunctional foamed concrete composite self-heat-preservation block and a forming method thereof. The center of a block body is provided with a middle cavity for filling or pouring foamed materials, and the hollow cavity is a through hole with openings located in end faces of double sides, or a blind hole with an opening located in the end face of one side or a blind hole with an opening located in the side wall of one side; the middle cavity is filled with the foamed materials to form a double-foamed block, or the middle cavity is filled with the foamed materials and naturally shrinks to form a double-foamed block with a hollow chamber. The forming method comprises the steps: firstly, making a die box of the block as required, then, sorting, stirring, foaming and pouring in the die box, and distilling by using an autoclave to obtain a hollow shell, wherein the hollow shell is solid outside and is provided with the middle cavity; and (2) pouring the foamed materials into the middle cavity of the hollow shell in a physical or chemical foaming way according to the ratio of less than 300kg/cubic capacity, and then, forming through natural curing or secondary distilling, wherein the hollow shell is prepared in the step (1). The inner hole of the block provided by the invention is subjected to hollow treatment, so that the heat self-preservation and energy saving effects are good.

The invention discloses a composite biological rotary net device and a synchronous nitrification and denitrification method thereof. The method is characterized by comprising the following steps of: calculating the number of the composite biological rotary net devices to be arranged according to the quantity of waste water to be treated, CODCr (Chemical Oxygen Demand) and the concentration of NH3-N, and placing the composite biological rotary net devices in one same biological reaction tank; adding a microbial agent or introducing activated sludge to form a synchronous nitrification and denitrification period in a process system; starting a reduction box (9) to drive a chain gear (7) to drive an upper rotary frame (3), a lower rotary frame (4) and carriers (10, 11) to rotate, and opening an air pipe valve (8); introducing 1.5-2 mg/L of dissolved oxygen to a water area of the upper rotary frame (3) through a middle single-side aerator pipe (5) so that the dissolved oxygen is provided for a biological film on the biological carrier (10) for an aerobic nitrification reaction; and isolating the diffusion of dissolved oxygen through an oxygen diffusion isolating board (6) and the rotation direction adjustment of the carrier (10). The concentration of water dissolved oxygen on the lower rotary frame (4) is 0.2-1.0 mg/L, and a biological film on the biological carrier (11) performs a biological anaerobic denitrification reaction under anaerobic conditions.

The invention relates to a reflective big-pixel bistable-state color display module, which comprises a transparent panel, a backboard, a plurality of movable lenses, supporting pins and electric conductive elastic fixing pieces, wherein a layer of semipermeable reflective film is arranged on the back side of the transparent panel; a transparent layer covers the surface of the semipermeable reflective film; by virtue of the supporting pins, the transparent panel and the backboard are connected; the side, facing the transparent panel, of the backboard is provided with electrodes; the movable lenses are arranged between the transparent panel and the backboard; the side, facing the transparent panel, of each movable lens is provided with a reflective layer; the movable lenses are connected to the transparent layer or connected to the supporting pins by virtue of the elastic fixing piece; the movable lenses get into contact with the transparent layer or the backboard; and the elastic fixing pieces and the electrodes on the backboard are connected to a driving circuit. The display module provided by the invention is simple in structure, convenient to manufacture and relatively low in cost; the display module is low in energy consumption and excellent in performance under outdoor strong light, and the display module is lightly affected by climate and temperature; and two predetermined contrast colors can be implemented at each pixel, so that the combined display of words or patterns is achieved.

The invention relates to an asymmetric super capacitor with cobalt hydroxide and active carbon as the anode and the cathode respectively and a preparation method thereof. The anode adopts a carbon material/cobalt hydroxide electrode, the cathode adopts a carbon material or a foamed nickel/active carbon electrode, the anode and the cathode are separated by a diaphragm such as a polypropylene sulfonic acid membrane, an electrolyte is an alkaline aqueous solution, and a single super capacitor or super capacitor set is assembled. The cobalt hydroxide of the anode provides a pseudocapacitor and the active carbon of the cathode provides an electrical double-layer capacitor, so that the specific capacitance is effectively improved, and the electric potential working window of the capacitor is widened, thereby improving the energy density of the super capacitor. The cobalt hydroxide material of the anode takes quasi-reversible oxidation reduction reaction, and the active carbon of the cathode performs static physical absorption, so that the asymmetric super capacitor is good in cyclic stability and has a long service life. The super capacitor set adopts a flexible package form, so that the mass energy density of a super capacitor overall device is greatly improved.

The invention discloses a day-night type high-multiplying-power high-definition continuous zooming optical lens. The optical lens comprises a front fixation group G1 with the positive focal power, a zooming group G2 with the negative focal power, a compensation group G3 with the negative focal power, a diaphragm STO, a rear fixation group G4 with the positive focal power, a filter lens, and a camera target surface Simage, wherein the units are arranged coaxially and successively from an object side to an image side. The focal lengths of the front fixation group G1, the zooming group G2, and the compensation group G3 meet the following relational expressions: f1/ft is larger than or equal to 0.32 and is less than or equal to 0.36; f2/f3 is larger than or equal to 0.37 and is less than or equal to 0.41, wherein the f1 expresses the focal length value of the front fixation group G1, the f2 expresses the focal length value of the zooming group G2, the f3 expresses the focal length value of the compensation group G3, the ft expresses the longest focal length value of the optical lens. The optical lens has the high-multiplying-power continuous zooming function and is capable of realizing all-weather offset-focusing-free high-definition imaging.

The invention discloses an automatic transmission mechanism for cylindrical workpieces, and relates to the field of transmission mechanisms. The automatic transmission mechanism for the cylindrical workpieces comprises a first platform, a second platform, inclined plates, lifting plates and a driving mechanism; the first platform and the second platform are vertically arranged, the inclined plates are used for connecting the first platform with the second platform, the lifting plates can ascend and descend between the first platform and the second platform, and the driving mechanism pushes the lifting plates to vertically move; holes are formed in the corresponding positions of the first platform and the second platform, and the lifting plates are matched with the holes in shape; and the inclined plates are connected between two adjacent holes of the first platform and the second platform. The automatic transmission mechanism is simple in structure and high in transmission efficiency.

The invention discloses a quick wall whitewashing machine. The quick wall whitewashing machine comprises a handle and a roller, and further comprises a gear, a pin shaft, a fixing shaft, a fixing frame and a rack, wherein the fixing frame is connected with the roller; a fixing block and brake blocks are arranged on the fixing frame; the brake blocks are arranged on the periphery of the roller; the fixing block is connected with the gear through the fixing shaft; the gear rotates around the fixing shaft and is meshed with the rack; a support rod is arranged on the gear; a brush is arranged on the support rod; the handle is connected with the fixing frame through the pin shaft. According to the quick wall whitewashing machine, the gear is meshed with the rack and connected with the support rod, the support rod is connected with the brush, and the motion of the roller is conveniently and accurately transferred to the brush, so that the quick wall whitewashing machine can whitewash a wall with the roller as well as the brush, thereby speeding up the wall whitewashing progress and effectively saving time; the quick wall whitewashing machine is simple in structure, selects and uses common materials, and is convenient to popularize and apply.

The invention discloses a pedal type stain removing machine which is characterized by comprising a base (1), a plurality of water tanks (2) and a plurality of water absorbing devices (3). The water tanks (2) and the water absorbing devices (3) are arranged on the base (1). Water outlets of the water absorbing devices (3) are connected with water inlets of the water tanks (2). Water inlets of the water absorbing devices (3) are connected with water outlets of water absorbing devices (4) used for absorbing water stains on the ground. The top face of a front row water absorbing device set (5) and the top face of a rear row water absorbing device set (6) are connected with an elastic pressing device (7) capable of moving vertically. The elastic pressing device (7) is connected with a lever (9) through a connecting rod (8). The outer walls of the water absorbing devices (3) are of longitudinal telescopic structures. The water inlets and the water outlets of the water absorbing devices (3) are one-way water stopping valves. The pedal type stain removing machine is simple in structure, convenient to implement, environmentally friendly, low in manufacturing cost and suitable for being widely applied and popularized, labor is saved, and materials are common.

The invention discloses a plasma display screen with an interdigital electrode structure, which belongs to the technical field of flat plate display. A bus electrode of an X electrode on a front plate and a bus electrode of a Y electrode are arranged horizontally; and the X electrode and the Y electrode have interdigital structures, are arranged vertically and are connected with respective bus electrode vertically and crossly. Compared with the prior art, the plasma display screen has the advantages of simple structure, high luminous efficiency and the like.

The invention discloses a lightweight soundproof thermal insulation wall brick. The wall brick is prepared from, by weight, 170-190 parts of silica sand, 80-90 parts of cement, 35-45 parts of lime, 17-24 parts of ardealite, 25-35 parts of coal ash, 0.3-0.5 part of aluminum powder, mica powder and 320-360 parts of water, wherein the mica powder accounts for 7-9% of the total dry weight. Compared with an organic foaming method, an inorganic foaming method has advantages of high corrosion resistance, fireproof performance and environment friendliness. The wall brick prepared from the raw materials according to the method is about 0.34g/cm<3> in bulk density, 1.6Mpa in compressive strength, 0.07W/m.K in thermal conductivity and 40db in soundproof effect.

The invention discloses a mushroom pickup trolley used in a factory. The trolley comprises a supporting device, handrails, idler wheels, a winding stair and a lifting device, wherein the supporting device comprises supporting pillars, a supporting frame and a supporting plate, the supporting frame and the supporting plate are perpendicularly connected with the supporting pillars, the supporting frame is a square frame used for fixing the winding stair, the supporting pillars are located at the center of the supporting frame, the supporting plate is arranged on the bottom surface of the supporting frame, and the bottom end of the supporting plate is connected with the idler wheels; the winding stair is arranged on the supporting plate, the inner side of the winding stair is fixedly connected with the supporting pillars, the outer side of the winding stair is fixedly connected with the supporting frame, the winding stair is arranged around the supporting pillars in a rotary mode, the lifting device comprises a pulley arranged at the top end of the supporting frame, a rope penetrating through the pulley and a hanging basket connected to the rope, and the handrails are arranged at one end of the supporting plate. Due to the adoption of the winding stair, space is saved, the problem that mushrooms at different altitudes can not be picked up at a time from the same position is effectively solved, and the trouble that only mushrooms at a fixed altitude can be picked up at a time is avoided.

The invention relates to a gearbox rework support frame and an assembling and disassembling method thereof. The support frame comprises a support mechanism, a workbench, a sliding wheel and a liftingmechanism; the workbench is arranged on the top of the support mechanism and can slide along the horizontal direction; the lifting mechanism is arranged on the support mechanism and can drive the workbench to move up and down along the vertical direction; and by the scheme, the assembling and disassembling maintenance efficiency of an existing automobile gearbox can be improved, and the maintenance cost and difficulty are reduced; and the structure is simple and practical, and the material cost is low.

The invention relates to a preparation method of phosphoric acid activated eucalyptus charcoal and application thereof in adsorbing Cr (VI) in water. The preparation method includes: cutting the dried eucalyptus into slices, soaking and washing the slices for three times, drying the slices in a drying oven at the temperature of 60-80 DEG C for 48 hours, crushing the slices, and sieving the crushed slices with a 30-mesh sieve to obtain eucalyptus powder; and putting the obtained eucalyptus powder into a muffle furnace, heating to 500 DEG C at a heating rate of 10 DEG C/min, pyrolyzing for 1 hour, washing with deionized water for three times, and drying in a drying oven at 60 DEG C for 24 hours to obtain the eucalyptus charcoal. soaking 8-10 g of eucalyptus charcoal in 40-50 mL of a 40% phosphoric acid solution for 10 h at the room temperature, placing the soaked eucalyptus charcoal in a 200 ml crucible, and performing pyrolysis in a muffle furnace at 450-550 DEG C for 1 h at the heating rate of 10 DEG C/min, washing the eucalyptus activated charcoal for three times in deionized water, and drying the eucalyptus activated charcoal at 55-60 DEG C for 24 h, and packaging the driedeucalyptus activated charcoal in plastic sealed bags and perserving the eucalyptus activated charcoal in a drying condition. The method disclosed by the invention is simple, common in medicament, easily available in raw materials and available in actual running operation. Based on the local eucalyptus in Guangxi, the raw material cost is saved.

The invention discloses an aluminum-made vertical heat sink device with high temperature distribution uniformity. The heat sink device consists of fin tube array sides, a metal corrugated soft pipe, a plurality of thermal insulating material layers and a temperature acquisition system, wherein an eight-prism-shaped side surface is formed by eight fin tube array sides being 460mm*1160mm; two fin tube array sides being 1120mm*1200mm are respectively used as the top surface and the bottom surface of the heat sink device; the metal corrugated soft pipe is connected with the surfaces so as to integrate an inner cavity of the whole heat sink device; thermistors in the temperature acquisition system are adhered to the outer surface of the heat sink device; and the plurality of thermal insulating material layers are wrapped at the outermost surface of the device. The aluminum-made vertical heat sink device has the advantages of good temperature distribution uniformity, good cooling effect, rapid cooling speed, small size, convenience in operation and maintenance, and the like, and has a good practical value and an application prospect in the field of space technologies.

The invention discloses a novel dry fully-prefabricated assembled concrete frame connecting system, including beam-column dry ductile connections and inter-column dry connections. Each beam-column dryductile connection is mainly composed of a prefabricated concrete column, prefabricated concrete beams, connecting bolts, section steel connecting end plates, embedded steel liner plates, prefabricated concrete beam end anchor plates and embedded steel liner plate anchor bars. Each inter-column dry connection is mainly composed of an upper prefabricated concrete column and a lower prefabricated concrete column, upper high-grade concrete reinforcement blocks and lower high-grade concrete reinforcement blocks, and an upper column end steel plate and a lower column end steel plate used togetherwith the columns and reinforcement blocks. The frame connecting system of the invention has the advantages of simple structure, reasonable structure and common materials. Meanwhile, by using the mature concrete structure and steel structure engineering technology, the frame connecting system has reliable performance, works stably, and can be widely used in various structural engineering.

The invention relates to a northern lawn maintenance method comprising the following steps: (1) watering: a watering amount is 2-5cm every week during drought growing seasons; the watering amount should reach 6-8cm every week during hot and drought periods; and sprinkle-watering is carried out 1-3 times every day when the lawn is just withered; (2) fertilizing: fertilizing is carried out 1-3 times respectively in springs and in autumns; fertilizing should be comprehensive and uniform; and irrigation is carried out instantly after fertilizing, for enhancing the fertilizer effect; (3) trimming: a 1/3 principle is followed, and trimming amount and trimming frequency can be increased during springs and autumns; a trimming trend should be crossed by at least 30-40 DEG with the trend of the last trimming; trimming speed is not too fast or too slow, and trimming path is straight; cutting surfaces of each trimming reciprocation should be overlapped by 8-12cm; and (4) weeding: a herbicide should be sprayed 1-3 times every spring and autumn. The steps are clear and simple; materials are common; and cost is low. The method is suitable to be used by or used as a reference by professional or non-professional growers. The operation method is simple and convenient.

The invention relates to an assistive device for covering residual liquid during automobile coating. The assistive device is characterized by comprising a covering plate (5); a fixed rod (1) is arranged at one end of the covering plate (5); two positioning columns are further arranged on the lower surface of the covering plate (5); the covering plate (5) is fixed above an automobile body front fender through the cooperation of the fixed rod (1), the two positioning columns and technological holes in the automobile body front fender; the two positioning columns comprise the long positioning column (3) and the short positioning column (4) and are used for supporting the covering plate (5), so that a certain gap is formed between the covering plate (5) and the automobile body front fender; an anti-disconnection foot (41) is arranged at the tail end of the short positioning column (4); the assistive device further comprises an auxiliary fixed rod (2); and the auxiliary fixed rod (2) and the fixed rod (1) are arranged in parallel and connected with the covering plate (5) through a connecting rod (6). The assistive device is convenient to mount and dismount, operation of staff is facilitated, and the production efficiency is improved.

The invention relates to a tertiary buffering device for mitigation of automobile collision. The tertiary buffering device comprises a rubber layer, an airbag layer and a spring layer and can be mounted at one part, easy to have a collision, of an automobile, such as an automobile head, an automobile tail and side positions of the automobile. The rubber layer, the airbag layer and the spring layerare arranged in sequence from right to left; the rubber layer is bonded with the airbag layer through sticky connection; the airbag layer is fixedly connected with the spring layer through a bolt; the spring layer is fixed at one part easy to have a collision, such as the automobile head, the automobile tail and an automobile door, through a bolt; two pressure limiting holes are formed in the airbag layer and controlled by a pressure limiting opening mechanism; and when the pressure in the airbag layer reaches a preset value, the pressure limiting mechanism is started so that the air in an airbag enters into the pressure limiting holes via air holes in the two sides of the pressure limiting mechanism and are exhausted via air exhaust holes in the two sides of the spring layer. According to the tertiary buffering device, the impact force generated in the automobile collision process can be effectively neutralized, the damage degree of the automobile can be reduced, the passenger safetycan be protected, the manufacturing cost is low, and the device is effective and practical.