755results about How to "Simple construction operation" patented technology

A surgical instrument comprising a tip end joint part having an openable and closeable gripper, an operating part including a hand grip and a plurality of operating dials, and an arm part that accommodates a wire for cooperation of actions of the operating part and the tip end joint part. A first operating dial is arranged above the hand grip and on an upper inclined surface of the operating part, second and third operating dials are arranged above the hand grip and on a front surface of the operating part, the first operating dial is operated by a thumb and the second operating dial is operated by a forefinger whereby the tip end joint part is operated vertically and operated laterally to perform a swinging action, and the third operating dial is operated by a forefinger whereby the tip end gripper is operated to open and close.

An apparatus and method for carrying out the affinity separation of a target substance from a liquid test medium by mixing magnetic particles having surface immobilized ligand or receptor within the test medium to promote an affinity binding reaction between the ligand and the target substance. The test medium with the magnetic particles in a suitable container is removably mounted in an apparatus that creates a magnetic field gradient in the test medium. This magnetic gradient is used to induce the magnetic particles to move, thereby effecting mixing. The mixing is achieved either by movement of a magnet relative to a stationary container or movement of the container relative to a stationary magnet. In either case, the magnetic particles experience a continuous angular position change with the magnet. Concurrently with the relative angular movement between the magnet and the magnetic particles, the magnet is also moved along the length of the container causing the magnetic field gradient to sweep the entire length of the container. After the desired time, sufficient for the affinity reaction to occur, movement of the magnetic gradient is ended, whereby the magnetic particles are immobilized on the inside wall of the container nearest to the magnetic source. The remaining test medium is removed while the magnetic particles are retained on the wall of the container. The test medium or the particles may then be subjected to further processing.

A versatile personal emergency, especially medical emergency, communication system includes a user-carried portable communication unit having a single button, which when depressed by the user, wirelessly sends a call request signal to a base unit. The base unit initiates a telephone call through a dial-up network to an emergency response center and places an operator at the emergency center in wireless voice communication with the portable unit when the call is connected. The telephone number of the emergency responder to be called is stored in the system. A program is used to set up the system to a selected one of a central monitoring station and a 911 operator. Voice messages are stored in the system and are used to advise the user of the status of the call, and to provide the user with verbal confirmation that functional systems of the base unit are operating properly. The units are programmable selectively by phone, voice or computer.

The invention discloses a special grouting agent for post-tensioned prestressed concrete beams of highway bridges and culverts and a preparation method thereof. The grouting agent comprises the ingredients of a water reducing agent, a plastic expanding agent, an expanding agent, a flowing deformation assistant, a water-retaining agent, a retarder, a defoamer, a superfine active mineral admixture and the like. Low ratio of water to glue (0.26-0.28), high fluidity (the initial fluidity being equal to or less than 17s), no bleeding (free bleeding rate in 24hours being 0%) and early expanding (free expanding rate in 3hours being 0-2%) of grouting materials are realized after the grouting agent is added, so that quality reliability and durability of post-tensioned prestressed duct grouting areimproved, the problems of non-full and incompact grouting in duct grouting are fundamentally solved and the service life of prestressed concrete structure bridges is prolonged to realize a qualitative leap of the grouting material performance.

The invention relates to a construction method for mounting an outdoor embedded high-density polyethylene double-wall corrugated drain pipe (CPP).The method is characterized by comprising the following processes of foundation trench digging, pipe mounting and backfilling, wherein the foundation trench digging technical process comprises measuring and setting out, mechanical grooving, levelling and tamping of a groove bottom, grit gravel cushioning and foundation sanding; the pipe mounting technical process comprises pipe mounting, well chamber building and rendering; and the backfilling technical process comprises soil filling for a chest, a water tight test, soil backfilling and tamping. The method solves the problems of discharge of rainwater and sewage of current municipal engineering, industrial wastewater discharge, subdistrict drain engineering, low speed for cement and metal pipe construction in the engineering of pipelines preburying and the like, heavy pipe weight, inconvenience for conveying and carrying, large labor intensity, high mounting cost and the like, and is applicable to the discharge of the rainwater and the sewage of the current municipal engineering, the industrial wastewater discharge, the subdistrict drain engineering, and the construction for mounting engineering drain pipes such as the pipelines preburying and the like.

The invention discloses a permeable crystalline waterproof coating, which is prepared from the following components in percentage by weight: 30 to 65 percent of portland cement, 24 to 36 percent of quartz sand, 5 to 16 percent of filler, 1 to 4 percent of calcium ion compound, 1.5 to 4 percent of crystal precipitator, 1.5 to 3 percent of complexing aid, 1 to 3 percent of film forming aid, 0.4 to 1.6 percent of complexing agent, 0.4 to 2 percent of polycarboxylic acid water reducer and 0.2 to 0.4 percent of methylcellulose. The permeable crystalline waterproof coating has good penetration, and can grow insoluble crystals in capillary pores and microcracks on the surface of the concrete to block the capillary pore channels and the microcracks so as to improve the permeability of the concrete and fulfill the aims of resisting water and blocking leakage. The permeable crystalline waterproof coating can be widely applied to anti-permeability and waterproof construction of cellars, tunnels, subways, swimming pools, roof squares, toilets and the like.

The invention relates to a bridge deck structure of a steel bridge, in particular to a steel and ultra-high performance concrete combined bridge deck structure, comprising a steel bridge deck, an ultra-high performance concrete layer is coated above the steel bridge deck, a bridge deck pavement layer is coated above the ultra-high performance concrete layer, and the ultra-high performance concrete layer is internally provided with reinforced bars. The steel and ultra-high performance concrete combined bridge deck structure has the advantages of small construction height, large stiffness, good binding performance between combined layers, good durability, good fatigue resistance, little vehicle impact and the like.

The invention discloses a subway station deep foundation pit excavation construction method, wherein the upper portion of an excavated foundation pit is a sandy gravel stratum, and the lower portion of the excavated foundation pit is a mud rock stratum. The method includes the steps of 1, precipitation construction, wherein precipitation construction is conducted on the sandy gravel stratum through a precipitation well and 2, foundation pit excavation, wherein the foundation pit excavation includes the following steps of foundation pit partition and foundation pit earthwork excavation; the excavated foundation pit is divided into a plurality of small foundation pit bodies to conduct excavation respectively; the small foundation pits comprise first foundation pit bodies and second foundation pit bodies; excavation is conducted on the divided small foundation pit bodies; an open-cut method is adopted for the first foundation pit bodies and the second foundation pit bodies; the first foundation pit bodies are supported by fender posts, reinforced concrete supports and steel pipe inner supports; the second foundation pit bodies are supported by the fender posts, pre-stressed anchor cables and the steel pipe inner supports. The subway station deep foundation pit excavation construction method is simple in step, reasonable in design, convenient to construct, faster in construction process, good in construction effect and capable of easily conveniently and fast to finish deep foundation pit excavation construction process, and the influences on the surrounding environment by the excavation construction process are smaller.

A wheeled vehicle, preferably a trailer, carries highway markers in a storage frame that is horizontally rotated to selectively align each of a plurality of parallel, circularly spaced, slide bearings, each configured to confine a linear array of highway markers against circumferential and radial movement, while allowing sliding along the length of the array. A powered abutment feeds the highway markers to a transfer station. A transfer mechanism picks up a highway marker by attraction and moves it between the transfer station and a highway station. A video camera records the highway station environment and wirelessly sends a video stream to a monitor plugged in the driver's cab. A releasable electrical connector between a tow vehicle and a trailer wheeled vehicle transmits a lights-on signal to control the operations. Power for the attraction, the transfer mechanism, the powered abutment, the camera, the retrieval attachment and a powered index mechanism for the storage frame are provided from a power supply on the trailer.

A tidal power apparatus comprises a moored pontoon (1) having a duct (2) therethrough opening at opposed ends of the pontoon. The duct has a vertical axis rotor (3) therein driving an electrical generator (6). A deflector vane (8) is located in the duct at each end thereof, each deflector vane being mounted to pivot about a vertical axis between an active position, in which the deflector vane deflects water flow to one side of the rotor axis to cause rotation of the rotor, and an inactive position substantially aligned with the water flow from the turbine.

The invention pertains to the technical field of composite material science and environmental protection and relates to opening coal dust polluting inhibitor and the preparation method thereof. The inhibitor is the hydrophilic material compounded by a plurality of compounds, and every compound and the weight percentage thereof is that: 15-20 percent main film forming resin, 25-30 percent auxiliary film forming resin,1-2 percent thickening agent, 15-20 percent dispersant, 2-3 percent mould inhibiting antiseptic agent, 1-2 percent anti-sedimentation agent, 2 percent defoamer, 15-20 percent powder and 3-5 percent color paste. The invention adopts the theory of gravity flow mat gloss solidification, which effectively overcomes the disadvantages of uneven film forming thickness, long film forming time, poor stability of film layer, etc of original self-solidification inhibition materials. The invention has low price, and production thereof is simple and practical; in addition, the invention has remarkable economic, environmental and social benefits, and is applicable to treat raised dust pollution in the fields of shipping, power, mine, road, metallurgy, etc.

A method for preparing steel-bonding structural adhesive curable in low-temperature and humid environment comprises the following steps: preparing a component A; preparing a component B; and mixing the component A with the component B at a weight ratio of 1:(0.3 to 0.5) to obtain the steel-bonding structural adhesive curable in low-temperature and wet environment. The steel-bonding structural adhesive can fully meet the requirement for steel-bonding construction in the environment with a temperature of subzero 10 to 0 DEG C and a relative humidity larger than 65 percent. A test shows that, 168 hours after the curing, the compressive strength of the adhesive is equal to or larger than 65 MPa, steel-steel tensile shear strength is equal to or larger than 15 MPa, steel-steel adhesion tensile strength is equal to or larger than 33 MPa, and the normal tensile bonding strength with concrete is equal to or larger than 2.5 MPa.

The present invention provides a cement light mortar which is the thermal insulating material at the exterior wall surface of the building, the cement is taken as the base material, the mortar comprises a light weight aggregate, a polymer modified additive and a re-dispersible emulsion powder, the light weight aggregate is expanded perlite and lime dust, the polymeric additive is the combination of cellulose ether, lignocellulose, starch ether and the polypropylene short fiber, wherein, the expanded perlite is the organosilicon-modified expanded perlite. The invention has the following advantages: the thermal conducting coefficient of the invention is reduced greatly, the material has excellent heat preserving and heat insulating property, each strength index is increased greatly comparing with the conventional heat insulating mortar, has higher crushing strength for securing the safe using; the weight is light and the sole weight of the building and the burden to the base load are effectively reduced; the construction technique is same to the conventional coating mortar and the operation is rather simple; the physical property is stable and no empty projection or cracking will occur after construction. The activity is rather low. The mortar has a broad application field and has excellent compatibility and stick force to various wall bases, the product of the invention is nontoxic and smellless, inorganic and noncombustible.

A buoyancy engine is mounted on the sea floor above a natural gas vent. The engine captures emitted gas in a ring containing gas holding spaces. The gas imparts buoyant energy which is converted into rotational force as the gas ascends thru the apparatus, and the ring rotates. The ring is attached to a driveshaft mounted on bearings in the walls of the apparatus, and turns an electric generator.

A locking mechanism for a support leg hingedly attached to a support surface includes a base, attached to the support surface, with a plurality of angularly spaced, radial teeth, and a coupler, attached to the support leg, having a plurality of angularly spaced, radial teeth configured to mate with the teeth of the base. A selectively releasable engagement mechanism is configured to engage and disengage the teeth of the base with the teeth of the coupler, to allow selective rotation of the support leg between an extended position and a folded position, and to lock the leg in the extended or folded position.

The invention relates to construction equipment for the inverted arch of a two-track tunnel of a high-speed railway, belonging to the technical field of tunnel construction equipment. In the invention, the construction equipment for the inverted arch of the two-track tunnel of the high-speed railway comprises a trestle, an inverted arch mould frame and a terminal beam, wherein the terminal beam is connected with the inverted arch mould frame to form into a whole; the terminal beam and / or the inverted arch mould frame are / is connected to the trestle; and the terminal beam and the inverted archmould frame autonomously move on the trestle. In the invention, the construction equipment for the inverted arch of the two-track tunnel of the high-speed railway can position accurately, move in place fast and convenient, and has the advantages of high mechanization level, low article labor intensity and low construction cost; the construction equipment can complete the inverted arch through one-time monolithic casting with high construction efficiency and high construction quality, and can provide guarantee for quick tunneling; construction organization and work procedure partition in the tunnel are optimized, thereby being beneficial to standardized operation and safe and civil construction; and the construction operation is convenient and fast, breaks through the traditional inverted arch construction technology and ensures the continuous construction quality of the inverted arch, thus being in favor of popularization and application.

The invention relates to a colourful environmental-friendly synthesized polymer waterproof paint which comprises the following components in parts by weight: 3-7 parts of petroleum resin, 5-15 parts of styrene-ethylene-butylene-styrene (SEBS), 5-15 parts of styrene-butylene-styrene (SBS), 5-10 parts of thermoplastic polyurethane elastomer, 4-8 parts of terpene resin, 4-8 parts of poly-alpha-methyl styrene, 2-5 parts of tung oil, 10-15 parts of mica powder, 0.2-0.5 part of antiager D, 0.2-0.5 part of antioxidant 264, 0.2-0.5 part of defoaming agent, 0.3-0.5 part of ultraviolet absorber, 35-45 parts of 120 # solvent, 5-15 parts of butyl acetate and 1-3 parts of color paste. The paint has the characteristics of unique waterproof property, acid-base resistance, ultraviolet irradiation resistance, heat insulation, anti-aging property, high adhesion strength, water repellent, good leakage-resisting effect, heat resistance, frost resistance and good elongation; and the paint also has the advantages of wide application range, moderate price, environmental friendliness, durability and the like, and is convenient to use, thereby meeting the demand of people in a real life.

The invention belongs to the technical field of preparation of insulators for the construction of asphalt pavement road rollers and relates to an insulator for the low-temperature construction of road rollers and a method for preparing the same. The insulator is mainly prepared by mixing silicone oil, compound emulsifier, glycerin, pH regulator, preserving agent and water. The insulator has the advantages of high chemical stability, high high-low temperature resistance, no corrosion to steel wheels, small amount of coating, lasting insulating effect, environment friendliness and the like. By using the insulator, the asphalt mixture pavement is guaranteed to be constructed at the ultralow temperature (15 DEG C below zero), so that the working season is greatly prolonged; and during normal-temperature construction, by using the insulator, the mixing temperature of the asphalt mixture is reduced to 15 to 20 DEG C under the condition of unchanging the compaction degree and the emitted greenhouse gases are reduced in the mixing process and the environment-friendly and energy saving requirements are met.

The invention relates to a chemical apparatus that produces solid-state polymerization, with heat exchanger for reaction chamber or reactants located therein. The apparatus recycles waste PET bottles and produce high quality PET pellets essentially free of contamination. The apparatus comprises an insulated housing or frame to receive small amounts of empty single serve plastic water bottles, with a movable lid to allow insertion of the bottles. The bottles are heated to the melting point, and a slow velocity fan on top of the lid to distribute heat inside the reactor. The tray inside the lower housing has cavities to hold the bottles, and several oval shaped molds at a lower level to receive the melt by gravity. These molds allow stationary cooling of the melted polymer, where it solidifies forming robust crystallized pellets. The apparatus relates to a countertop appliance intended for domestic use.

The invention discloses a wiping colorant for an aqueous wooden ware and a preparation method thereof. The colorant for the aqueous wooden ware is matched with aqueous wooden ware paint to be used during coating; the colorant totally uses water degradable raw materials, and does not need to use an organic solvent; the colorant can be coated with aqueous base paint and surface paint and also can be coated with oily base paint and surface paint; and the colorant can allow the wood texture to show more remarkable wiped color and layering feeling. After coloring, if the wood board has defect, no trace or connected trace is left after repair. The colorant is quite simple in field construction operation, is provided with a matched transparent main agent for adjusting drying speed and color concentration, is environment-friendly, has no public hazard and pollution, and can be widely applied to building decoration, household environment, restaurants, hospitals, schools, marketplaces and other various public places, government offices, recreation spots, office buildings, and the like.

A punch apparatus for cutting an opening in a sheet of material is disclosed. The punch apparatus includes a base plate, a measuring stick provided on the base plate and a punch assembly having multiple blades adjustably mounted on the measuring stick for cutting the material. The punch apparatus facilitates the expeditious measurement, marking and cutting of openings for electrical outlet boxes, switch boxes or other utility boxes in sheetrock or other material as well as precise replication of the openings in the sheetrock or other material.

The invention belongs to the technical field of bridge engineering, and in particular relates to a beam bottom overhaul platform capable of spanning bridge piers and obstacle pillars and a use method of the beam bottom overhaul platform. The beam bottom overhaul platform comprises pillar spanning truss trolleys, pier pillar spanning hanging racks, hoisting systems and connecting units, wherein the pillar spanning truss trolleys comprise two pairs of truss trolleys which are positioned on the inner sides of guardrails on two sides of a bridge, are capable of moving in the direction of the bridge and are arranged in symmetry; a plurality of detachable cantilever rods stretch outwards from one side adhering to the guardrails, of each truss trolley; the pier pillar spanning hanging racks are suspended on the cantilever rods on each pair of the truss trolleys through the hoisting systems; adjacent pier pillar spanning hanging racks are connected through the connecting units; the pier pillar spanning hanging racks comprise a plurality of truss units which are arranged in the direction of the bridge; adjacent truss units are in detachable fixed connection. The beam bottom overhaul platform has the advantages of high applicability, simple operation, good security, good economic property, good application prospect and the like.

The invention relates to a perfluoro alkyl ethyl acrylic ester-modified single-component acrylic resin and a preparation method as well as application thereof. The perfluoro alkyl ethyl acrylic ester-modified single-component acrylic resin has the structural formula which is shown in the specification, wherein n is equal to 4, 6 or 8; and the molecular weight is 40,000-55,000. The preparation method comprises the following steps of: adding a solvent into a reaction vessel and heating to 60-80 DEG C; uniformly mixing methyl methacrylate, acrylic acid, butyl acrylate, hydroxyethyl acrylate and perfluoro alkyl ethyl acrylic ester type monomer with an initiator and dropwise adding for 2-3 hours; preserving heat for 0.5-1 hour; and cooling to 40-70 DEG C and discharging. The resin prepared by the invention has high thermal stability and chemical resistance stability and low surface energy and is used as a main raw material of a paint; and a coating also has low surface energy, strong water-proof and oil-proof capacities and high weather resistance, corrosion resistance and aging resistance, has superior mechanical performance and high glossiness of an acrylic ester paint, can be cured at normal temperature and is easy and convenient to use.

A gypsum light mortar is a heat-insulating material of the inner wall of the building, the gypsum powder is taken as the gelled material which comprises light weight aggregate, polymeric additive and retarder, the light weight aggregate comprises expanded perlite, the polymeric additive is the combination of cellulose ether, lignocellulose, starch ether and polyvinyl alcohol, wherein, the expanded perlite is a silicon-processing modified expanded perlite. The mortar of the invention has the following advantages: the heat conducting coefficient of the mortar of the invention is greatly reduced, and the mortar has excellent heat preserving and insulating property, greatly-increased strength index comparing with the conventional heat-insulating mortar, excellent compression strength, securing the safety using, light weight, effectively reducing the sole weight of the building and the burden of the base load, same construction technique with the conventional coating mortar, simple operation; stable physical property, no hollow injection or cracking after construction, low activity, broad application field, and excellent compatibility and sticking force to various wall bases, the product of the invention in nontoxic, smell-less, inorganic and non-combustible.

An external wall insulation system of a lightweight screed inside and outside combination is formed by smearing plaster lightweight screed and cement lightweight screed on the external wall of a building; wherein, the inner side of the external wall is coated with the plaster lightweight screed and the outer side of the external wall is coated with the cement lightweight screed, and both the plaster lightweight screed and the cement lightweight screed comprise lightweight aggregate which contains organosilicone modified expanded perlite. The external wall insulation system has the advantages that: aiming at the different requirements of the inner side and the outer side of the external wall of the building, the inner side of the external wall adopts the plaster lightweight screed and the outer side adopts the cement lightweight screed so as to form the novel insulation structure, thus exerting the function of the two insulation sand pulps and being beneficial to humidity control and fire prevention in the building; the external wall insulation system has the advantages of low coefficient of heat conductivity, excellent intensity index of each item, ensuing safe use, effectively reducing the deadweight of the building and the burden of basis load, extremely simple construction technique, stable physical property, existing no hollowing and crazing after construction, extremely low radioactivity, ensuring the inhabited environment to be healthy and safe as well as wide application scope.

The invention discloses a novel fabricated vehicle bearing pavement and a construction method thereof. The novel fabricated vehicle bearing pavement is formed by superposing, assembling and laying fabricated reinforced concrete plate members in double layers, wherein double-layer bidirectional steel reinforcement frameworks are uniformly distributed inside upper pavement slabs and lower pavement slabs; lifting rings are embedded on lower parts of the frameworks in advance; rubber films are laid between the upper pavement slabs and the lower pavement slabs; a wear-resistant steel fiber concrete layer is arranged on the upper parts of the upper pavement slabs. The construction method comprises the following steps: 1. fabricating reinforced concrete pavement members; 2. lifting and transporting the prefabricated pavement members; 3. flattening the roadbed, laying the lower pavement slabs, rubber films and upper pavement slabs sequentially, laying the pavement slabs in a manner of staggering from each other according to seams, namely the seams between the slabs are not communicated with one another. The construction quality is easily guaranteed, the prefabricated pavement member is light in structure, high in strength, and convenient to transport and construct, can be repeatedly used and is particularly suitable for laying temporary vehicle bearing roads on the construction site, the rubber films can achieve a buffer effect, the friction force between the pavement slabs can be increased, and the pavement slabs are prevented from slipping.

The invention discloses a composite rock wool reinforcement plate and a preparation method for the composite rock wool reinforcement plate. The composite rock wool reinforcement plate comprises a core plate; wherein the core plate is composed of at least two rock wool slivers which are arranged side by side; the arrangement direction of fiber yarns of the rock wool slivers is in parallel with the thickness direction of the composite rock wool reinforcement plate; the four surfaces of the core plate in the length direction are wrapped by a layer of reinforced fiber layer; and the outer surface of the reinforced fiber layer is coated by a layer of mortar protecting layer. According to the composite rock wool reinforcement plate and the preparation method, the shortcomings of low tensile strength and low compression strength of common rock wool plate are overcome, the weak link of stress is eliminated, and the safety of the system is improved; and the composite rock wool reinforcement plate has the advantages of good heat insulating effect, high intensity, good fire-proof and humidity resistant performances, simple construction and long service life, so that the composite rock wool reinforcement plate can be widely applied to the fields of outer wall constructions of buildings.

The invention relates to a multifunctional anti-leakage shrinkage type concrete surface layer reinforcer which is prepared from the following components in percentage by weight: 10-20 percent of high polymer, 1-7 percent of film forming aided compound, 5-10 percent of surface layer active agent compound, 1-4 percent of leakage aided compound, 1.5-4.5 percent of active compound and the balance of water. The invention has good concrete surface layer enhancement effect, can obviously reduce the shrinkage of surface layer concrete, obviously improves the carbonization resistance and the medium leakage resistance of surface layer concrete, has convenient construction and obvious economic benefit and can be widely applied to the strengthening treatment operations on the surface layers of cement and concrete pouring components, concrete components under corrosion environment conditions such as piers, dams, and the like and deformed concrete components difficult to be strengthened by adopting a conventional method.