156results about How to "Reasonable function" patented technology

The invention is an apparatus used for measuring flexible material flexural fatigue, with property of being consisted of crank block rack mechanism, force and displacement sensor, upper and lower cartridge, optical plummet centering system, up-and-down and rotation driving system and control circuit, program and signal collection system, finishing measurement of fixed point flexural fatigue and relaxation creep behaviour of flexible material with stationary load and stretch effectively and accurately. The index property measured are endurance failure time, endurance limit strength and limiting strain, relaxation time, sample thickness or diameter. The apparatus has simple but practical structure, convenient installation and replacement, many tunable parameters containing sample length, fixed points position and their distance, bending rotational angle and angular frequency, original load and stretch, accurate measurement, and can avoid influence of move of application point in bending, offset of sample and vibration.

The invention discloses a multi-channel parallel near infrared spectrum imaging system. A multi-wavelength light emitting diode (LED) is applied to finishing emission of near-infrared light. An avalanche photodiode is used for detecting a weak optical signal, the simulating lock-in amplifier technology is used for achieving amplification of the signal, and a near infrared spectrum cerebral function imaging helmet disclosed in Chinese patent application CN200520002784.8 can be used for improving the partial unreasonable design of a self-adaptation head portion. The multi-channel parallel near infrared spectrum imaging system can achieve continuous rapid accurate detection and collection of cerebral blood oxygen signals, overcomes the defect of an existing functional near infrared system, and brings superiority of the near infrared spectrum imaging technology compared with other cerebral function imaging technologies into full play.

This invention relates to a preparation method of wet-penetrating polymer laminate film. The steps includes: (1) physical mixing: dry poly- ( N - isopropyl acrylamide) systematic hydrogel, add to aquosity form memory polyurethane system, magnetic stirring (3) copolymerization: TDI (MDI), polyester (ether) soft piece, dihydroxy methylmalonic acid DMPA and catalyzer takes polycondensation reaction to generate prepolymer with NCO end. Add N - isopropyl acrylamide water solution, initiator, cross-linking agent and accelerator, carry out copolymerization reaction; (3) graft: put film at middle of radio frequency coupler electrode, and put the polyurethane film hand led by plasms body in air for 1 to 2 hours, immerge film in 5 to 10 wt percent monomer water solution. Inlet nitrogen, UV-irradiation for 15 to 30 min at low temperature, closeness place, obtain polyurethane film of graft ( N - isopropyl acrylamide) hydrogel.

The present invention relates to the composite fabric structure with one side capable of bearing high temperature, low temperature or composite effect of high temperature and low temperature, and the other side maintained at room temperature state of 5-35 deg.c. The fabric structure has heat and cold resisting high performance coated fabric in one side; soft, comfortable, antifrosting and condensation-preventing fabric in the other side; and composite fabric of heat insulating polymer and compounded metal film as the middle layer, which may have also net lining fabric with stable thickness and size. The composite fabric has natural thickness of 3-12 mm, practical densified thickness of 1-3 mm and unit area weight of 150-550 g/sq m, may be adhered and sawn, and is completely sealed suitable for use as heat insulating protecting material in the environment condition from -130 deg.c to 120 deg.c.

The invention is a torsion property measuring method and apparatus for flexible material. The method is that upper end of simple holds to measure torsion moment and lower end hangs a weight to be revolved to a certain torsion moment or torsion angle then released to rotate back and reciprocate naturally, measuring autooscillation property and torsion modulus of the sample; or lower end is holded to have forced rotation or positive and negative, measuring once of the sample. The apparatus is consisted of moving beam, force, displacement sensor, torsion moment measuring mechanism, upper and lower holder, rotation mechanism, micro polarized light optical circuit and camera mechanism, moving and focusing mechanism, temperature cap, driving system and control circuit, program control and signal processing system, finishing measurement of self excited vibration, torsional fatigue and relaxation performance of flexible material with stationary load or stretch and observing degree of twist transfer of sample in and property change under different temperature, having simple but practical structure, convenient installation, many measurable parameters and accurate measurement.

The present invention relates to one kind of heat isolating composite film and its preparation process and use. Structurally, the heat isolating composite film consists of compounded base polymer film of high strength and low heat conducting coefficient, metal layer with high reflecting performance, metal oxide layer with high heat isolating performance and outer polymer film with low heat conducting coefficient and high hot adhering strength. The composite film may have thickness of 12-1000 micron. The heat isolating composite film is prepared through evaporation plating one very thin compact metal layer and one very thin loose metal layer successively onto rolled polymer film and then oxidizing, or evaporation plating metal oxide layer directly; and final rolling or curtain coating one other polymer film layer. The heat isolating composite film has excellent heat insulating performance, is light, thin and soft, and may be used in various flexible heat insulating material.

The invention discloses a circular saw web cutting machine. The circular saw web cutting machine comprises a fixed workbench, a rotary workbench, a positioning backup plate, a swing bearing mechanism and a power assembly, wherein the rotary workbench is arranged in the middle of the fixed workbench in a rotatable mode through a rolling and rotating device; an angle positioning device is further arranged between the fixed workbench and the rotary workbench; a saw blade, a power transmission device, a saw blade retaining device and a saw blade protecting device are arranged inside a power assembly shell; the positioning backup plate is arranged on the fixed workbench; the swing bearing mechanism is arranged on the rotary workbench behind the positioning backup plate; the power assembly is arranged on the swing bearing mechanism. The mechanisms and techniques of the multiple devices are adopted, the structures and functions of the multiple parts are provided, and therefore the circular saw web cutting machine is more reasonable in structure, safer to use, and better in cutting effect and achieves complete functions.

The invention discloses a switch door mechanism of an air conditioner. The switch door mechanism is arranged in an air outlet frame of a shell and comprises a switch door, a curve rack, a driving gearshaft, a curve guiding groove and a rotating shaft, wherein one side of a switch door body of the switch door is connected with a door panel; and the other adjacent side is connected with an air deflector; the curve rack and the curve guiding groove are fixed on the switch door body; the driving gear shaft can rotate relative to the shell and is mutually engaged with the curve rack, and a shaft pin of the driving gear shaft is inserted in the curve guiding groove; one end of the rotating shaft is fixed on the switch door body, and the other end is inserted in a limit groove of the shell. Theswitch door mechanism of an air conditioner enables the switch door to correspondingly swing or linearly move by the engagement of the rotating driving gear shaft and the curve rack, realizes the twofunctions of closing or opening the air outlet frame and enabling the air deflector to swing and supply air only by arranging two grooves with guiding action without additionally arranging guide railsor occupying the internal space of the air conditioner shell, thereby being extremely convenient and attractive.

The invention discloses a public information platform of a smart city. The public information platform of the smart city comprises a portal system, a data service system, a spatial-temporal information bearing service system, a thematic data mining service system, a catalogue management and service system, a data supporting system and an operation maintenance and management system, wherein the portal system is used for a platform to carry out portal management; the data service system is used for managing the data of the platform; the spatial-temporal information bearing service system is used for realizing the spatial-temporal property of the data of an urban public database; the thematic data mining service system is used for mining corresponding thematic data from platform data; the catalogue management and service system is used for managing a platform catalogue to realize resource sharing; the data supporting system is used for providing data supporting for the platform; and the operation maintenance and management system is used for maintaining and managing the operation of the platform. The public information platform has the technical effects of being reasonable in platform design, diversified in platform functions, rich in data and convenient for users to use and fuses multiple pieces of urban platform data to carry out interactive and smart processing.

The invention relates to the technical field of engineering construction, in particular to a tower crane construction technology used for a super high-rise building steel structure. The tower crane construction technology used for the super high-rise building steel structure comprises the following steps: a) carrying out tower crane model selection and tower crane plane arrangement; b) carrying out tower crane climbing analysis which comprises the structure setting of a tower crane climbing system and climbing elevation determination; c) carrying out tower crane climbing; d) calculating the internal force and the displacement of a core tube shear wall structure which bears tower crane load and creeping formwork load. Compared with the prior art, the tower crane construction technology has the advantages of reasonable process design and high actionability; according to repeated experiments, the tower crane construction technology is strictly executed according to a working condition set in a scheme, and the deformation of the core tube shear wall is within an allowable range of a standard through multiple times of practical observation. Practice proves that the function configuration and the plane arrangement of the construction engineering of a high-rise steel structure and a large tower crane are reasonable; the design of a climbing system and a climbing technology are advanced and proper; calculation relevant to the tower crane load is correct, and the whole working state of the tower crane is safe and reliable.

The invention discloses a self-adaptive grinding tool for a vertical crankshaft and relates to the technical field of engine part grinding tools. The grinding tool comprises a positioning device for vertically clamping the crankshaft and a grinding device located on one side of the positioning device and used for self-adapting to the outline of the crankshaft. The crankshaft grinding tool solves the problems that in order to ensure the fastening of a crankshaft, the stress influence on the crankshaft is ignored in the grinding tool in the prior art; in order to achieve the purpose that when the crankshaft face is ground, the same grinding amount of the crankshaft face cannot be guaranteed; when parts with different widths of the crankshaft are ground, the displacement amount needs to be frequently adjusted; and due to limitation of a grinding wheel, the side wall of the crankshaft can be ground in an auxiliary mode manually with the help of an auxiliary tool.

The invention discloses a synchronous playing method and system of playing content of multiple playing terminals. The method comprises the following steps: a user terminal establishes connection witha server, a user sets master/slave attribute of multiple playing terminals through the user terminal; the server performs time data extraction on the to-be-synchronized playing content so as to obtainthe corresponding time data; the server sends the master-slave attribute information of multiple playing terminals and the time data of the to-be-synchronized playing content to multiple playing terminals; a master playing terminal enters a host mode to send the synchronous playing information to the slave playing terminals; each slave playing terminal disables the audio module thereof, and controls the playing content and playing progress according to the received synchronous playing information, thereby enabling the playing content and the playing progress to synchronize with the playing content and playing progress of the master playing terminal. Through the synchronous playing method of playing content of multiple playing terminals disclosed by the invention, the dependence on the server and the requirement to the network environment can be reduced, and the good synchronous playing effect and application effect can be acquired.

The invention relates to an enhanced heat-insulation composite film spaced by a metal wire grating and application thereof. The enhanced heat-insulation composite film consists of 3-20 layers of sandwich metal-plated high-polymer composite films which are spaced by parallel or orthorhombic metal wire gratings on fiber meshes. The enhanced heat-insulation composite film is characterized in that one side of the enhanced heat-insulation composite film can bear the effect of high temperature and low temperature within negative 250DEG C to 250DEG C, the other side of the enhanced heat-insulation composite film is kept to be at 5-40DEG C normal temperature, the enhanced heat-insulation composite film is a multilayer composite material which can realize rapid and even heat distribution, heat insulation and warmth keeping, the natural thickness is 4-20mm, the actual compact thickness is 1-8mm, the weight per square meter is 40-800g/m<2>, and the enhanced heat-insulation composite film is a fully-closed bonded or sewn heat-insulation, warmth-keeping soft enhanced heat-insulation composite film. The enhanced heat-insulation composite film can be solely used or can be combined with other materials and be used for human body protection and environmental heat insulation of high-temperature and low-temperature occasions such as firefighting, military, exploration and industry.

The invention relates to a function-shared three-composite-layer laminated flameproof fabric, a preparation technology and application. The flameproof fabric consists of a reflection heat-insulation layer which faces to a flame and is mainly formed by a high-reflectivity metal foil, a heat-consumption temperature limiting layer which is intermediately arranged and is mainly formed by a high-heat-absorptivity energy-transduction phase-change material, and a heat-insulation comfortable layer which touches a human body and is mainly formed by a high-heat-insulation and high-heat-reflectivity composite film. The reflection heat-insulation layer can reflect and insulate most heat radiated by an open-fire strong heat flow environment; the heat-consumption temperature limiting layer cuts off temperature, absorbs heat and consumes energy through the phase change of a phase-change material; and the heat-insulation comfortable layer realizes heat insulation and comfort effects through heat insulation and reflection of a multilayer composite film and a lining flameproof comfortable base fabric. The reflection heat-insulation layer, the heat-consumption temperature limiting layer and the heat-insulation comfortable layer are composite layers and are sewn and bonded in a fully-closed manner to form the composite flameproof fabric. The natural thickness of the flameproof fabric is 5-15mm, the compact thickness of the flameproof fabric is 3-10mm and the weight per square meter of the flameproof fabric is 450-1500g/m<2>. The flameproof fabric can be used for human body protection and environmental heat insulation of high-radiated-heat special occasions such as firefighting, military, exploration and industry.

The invention belongs to the technical field of downhole digging working face conveying equipment, particularly relates to a belt loader telescopic nose for coal mines, and solves the problems that the existing belt loaders for coal mines are in sufficient in rubber belt tensioning travel and difficult in belt deviation adjusting. The belt loader telescopic nose comprises a fixing frame on the rear portion. A slide frame is disposed in front of the fixing frame. A front guide rail and a rear slide groove are respectively arranged on at the front and the rear of the fixing frame. The slide frame is supported on the front guide rail through a front slider and in the rear slide groove through a rear slider. A drive rotary drum and a belt pressing rotary drum are mounted between the two lateral plates of the slide frame. Tensioning oil cylinders are respectively mounted on two sides of the fixing frame and the slide frame. The belt loader telescopic nose is compact in structure, good in rubber belt telescoping and tensioning effects by using the hydraulic cylinders, fast, safe, stable, reliable, and convenient to mount and use, and successful application of a belt loader with large transport volume and large span to coal mine downhole digging working face conveying equipment is achieved.

The invention discloses a coaxial protection device for field measurement and a spanner thereof. The protection device comprises a protection cover arranged on a concrete observing pillar, wherein a coaxial bracket is arranged inside the protection cover; the protection cover and the center line of the coaxial bracket are overlapped; the coaxial bracket has a multilayer structure; a prism shaft is mounted on the center line of each layer of the coaxial bracket; a lower screw of the prism shaft is screwed into a bolt hole; an adjustment disc is correspondingly arranged above the prism shaft on the top of the coaxial bracket; a prism is mounted on each prism shaft; multiple pairs of fixing screws are arranged on the periphery of the bottom of the protection cover; each pair of the fixing screws are symmetrically distributed. The spanner is in a T shape; an opening is formed in the lower end of the spanner and the lower end is in an inverted U-shaped groove; the inverted U-shaped groove and the screw heads of the fixing screws are completely matched. By adopting the device, the prisms used when a total station performs automatic observation are coaxial, and the prisms can be effectively protected; the observation precision and the labor efficiency can be improved, the damage and the loss of the prisms are reduced, and the normal work of the total station is guaranteed.

The invention discloses a medical stair-climbing machine. The medical stair-climbing machine is mainly divided into three main parts including a leg mechanism, wheel mechanisms and a seat. Supporting legs in the leg mechanism are devices which conduct extension or shortening motion through a crank slide block mechanism, and when the medical stair-climbing machine walks on the flat ground, rollover can be prevented. In a stair climbing process, the security problem of a wheelchair needs to be comprehensively considered, it is guaranteed that the wheelchair is automatically stopped at the edge of the stairs, the device is prevented from slipping, and therefore a self-locking device is installed on vehicle wheels. To prevent the situation that the medical stair-climbing machine misses the step, a photoelectric sensor for measuring the distance is installed on a wheel supporting wheel, and the photoelectric sensor is used for measuring the distance between the supporting legs and the stairs. The seat is designed according to ergonomics, is safe and comfortable, and can reduce fatigue and pressure. Regarding the style, the wheelchair body is made from stainless steel and aluminum alloy, can be unfolded or folded, is light, easy to store and moderate in price, and is thus applicable to ordinary family.

The invention discloses a self-propelled cleaning method and a self-propelled cleaning device for manures in a dairy farm. The self-propelled cleaning method is characterized in that a motor is used as a power source, and is connected with a transmission assembly by belt pulleys, the transmission assembly provides power for wheels connected onto a support, accordingly, the support advances, and the manures in the dairy farm are shoveled by a shovel loader arranged at the front end of the support, and are cleaned in a self-propelled manner. The self-propelled cleaning method and the self-propelled cleaning device have the advantages that an advancing mode and an operation mode of a mini-tiller suitable for a site of the dairy farm are adopted, a manure cleaning machine is small in size and flexible in operation, and inconvenience in cleaning due to activity of cattle can be effectively prevented; the motor is used as the power source, so that working noise of the manure cleaning machine is reduced, and is prevented from injuring and scaring the cattle during operation; the motor is connected with the transmission assembly by the belt pulleys, and accordingly the problem of oil leakage when an existing motor is connected with an existing transmission assembly by splines is solved; various shortcomings such as large sizes, heavy weight and loud noise of an existing manure cleaning machine are overcome, and the self-propelled cleaning device is simple in structure, reasonable in function and flexible in operation.

The invention relates to the technical field of communication, and discloses a firearm safety management method and a firearm system which are used for achieving intelligent firearm management in a shooting range. The method comprises the steps that control equipment is started after passing management identity authentication, wherein the control equipment is hardware equipment capable of being fixedly mounted on a user body; location determination is conducted on the control equipment and a firearm to obtain a distance value between the control equipment and the firearm; and a safety prompt message is sent on the condition that it is determined that the distance value exceeds a preset threshold value. According to the firearm safety management method and the firearm system, on one hand, the safety of the firearm can be guaranteed, it is guaranteed that the firearm is in the control range of a firearm borrower, the safety of the firearm borrower is guaranteed, and meanwhile the use range of the firearm is controlled; and on the other hand, the good freedom degree is provided for the firearm borrower, the method is applied to management of target ranges and the shooting ranges for commercial operation, and the management efficiency is improved. In addition, an Internet-of-Things function module additionally arranged in the firearm system is reasonable in function and low in cost.