44results about How to "Avoid extensive damage" patented technology

The invention relates to a LD pumping high-power 2Mum wavelength medical Tm LASER, consisting of a LD pumping system, a laser crystal rod, an optical resonant cavity, a water-cooling system, a drying system, a focusing mirror and an optical fiber. The LD pumping system takes GaAlAs semiconductor laser array as a pumping source, comprising 3 groups of LD array modules in total; the laser crystal rod adopts a Tm-doped bonding crystal rod; the optical resonant cavity is a planoconcave cavity; the water cooling system can make the laser crystal rod operate under low temperature; the drying system is a nitrogen-filled drying box in which the complete laser optical path is arranged; the laser is coupled to the optical-fiber output by the focusing mirror. The invention has the advantages that 2Mum wavelength laser can be exported high efficiently, vaporized incision of prostate and other soft tissues can be conducted under water environment efficiently, the operation is rapid, and the manipulation is easy, and damages are avoided; the invention can be extensively applied to the clinic fields of urinary surgery, orthopaedics, gynecopathy, dyspepsia and various minimally invasive operations, etc.. Therefore, the invention is an ideal medical LASER.

The invention discloses a copper-core armored power cable with a fire extinguishing function, the cable includes an armored cable body, the inside of the armored cable body is fixedly connected with afixing device, a cable core is fixedly connected to the inside of the fixing device, the outer side of the cable core is fixedly connected with an insulating layer, the outer side of the insulating layer is fixedly connected with a shielding layer, the outside of the fixing device is filled with a filling layer, and a first protective layer is fixedly connected to the outer side of the filling layer. The fixing device is arranged to fix the cable core and a fixing baffle plate is arranged as a member made of heat dissipating silicone rubber which has good elasticity and extensibility and playing a fixing role, so that the stability of the cable core is improved, and the cable core damage phenomenon is prevented;, at the same time, heat dissipation silicone rubber has good heat dissipationperformance, dissipates the heat generated by the cable core in time, avoids the high temperature of the armored cable body, and prolongs the service life of the armored cable body.

The invention discloses a vapour diffusion coefficient testing method and a vapour diffusion coefficient testing device. An experimental sample is processed and fixed through processing on a fixing table according to a predetermined method, at least two humidity parameters corresponding to at least two different moments one by one of a testing point in each of at least two testing holes is acquired through a temperature tester when the temperature of the experimental sample meets the preset condition; furthermore, the vapour diffusion coefficient of the experimental sample is determined through distance between the testing point of each of at least two testing holes and a first humidity face, at least two different moments, and at least two humidity parameters of the testing hole in every testing hole. All testing results in the technical scheme of the application are transient state result, the method and the device are few in testing time and can avoid interference factors; therefore, the method and the device can improve the testing efficiency as well as the testing result accuracy.

The invention provides a paint prefabricated film, a protection structure and a preparation method of the protection structure. The surface, deviated from a back glue layer, of a substrate base material layer is a smooth plane, the smooth plane has the relatively low surface tension, and a paint coating formed on the surface of the smooth plane can be more uniform in thickness and fewer in insidedefects, so that the quality is higher; a plurality of bulge parts are arranged on the surface, facing the back glue layer, of the substrate base material layer, so that the binding force of the substrate base material layer and the paint coating is smaller than that of the substrate base material layer and the back glue layer, separation of the paint coating from a paint prefabricated film base body can be realized by the aid of the external force, and the paint coating is used for protecting the outer surface of a wind turbine blade base body. The paint prefabricated film is applied to preparation of the wind turbine blade protection structure, and the large-area damage to the paint coating due to sand erosion and rain erosion of the area having the low thickness of the paint coating dueto the non-uniform thickness of the paint coating can be avoided, so that the protection effect of the protection structure can be improved.

The invention discloses a fragment-free metal arched rupture disk with a crossed slot, a production device and a manufacturing method thereof. The production device comprises a slot pressing clamping fixture, a pre-arching clamping fixture and a pressure testing machine, wherein a slot pressing cutter is arranged in the slot pressing clamping fixture; and the pre-arching clamping fixture is arranged in the pressure testing machine. The manufacturing method comprises the following steps of: pressing the crossed slot of a blank of the rupture disk in the slot pressing clamping fixture, arching the blank subjected to slot pressing in the pre-arching clamping fixture by utilizing pressure fluid, and performing low-temperature annealing, complete annealing or secondary pre-arching and secondary annealing to manufacture the rupture disk. The production device can produce a right-arched or counter-arched rupture disk and is easy to operate; and the produced rupture disk has the advantages of fatigue resistance, corrosion resistance, no fragments after rupture and the like.

The invention discloses a telegraph pole conveying device. The telegraph pole conveying device comprises roller supports, a rotating disc, supporting legs and at least two roller structures in bilateral symmetry. Each roller structure comprises a main shaft and a roller. The rollers are in a V shape, the rollers are arranged on the main shafts in a sleeving manner to rotate, the main shafts are erected on the rotating disc through the roller supports, and the rotating disc is arranged on the supporting legs. A telegraph pole is erected between the rollers and is conveyed by means of rotating of the rollers. The telegraph pole conveying device has the advantages that the traditional manner that the telegraph pole is carried manually or bundled by a steel wire rope and then is pulled throughmechanical winching and traction is replaced, the input of a large number of carrying personnel is reduced, hurt to the carrying personnel and large-area damage of crops are avoided, the labor intensity of the carrying personnel is reduced, and the carrying efficiency of the telegraph pole is improved.

The invention belongs to the technical field of tunneling blasting, and particularly relates to an excavation method based on local section blasting and heading machine excavation. The method comprises the following steps of 1, measuring an excavation tunnel face; 2, determining a free operation area of a blast hole drilling tool and blast hole blasting parameters; 3, setting blasting parameters;4, performing blasting; and 5, loosening and pre-cracking rock mass, and excavating the rock mass by a heading machine. According to the excavation method, the advantages that a drilling machine can be freely implemented in a local area of a cutterhead and a cutter body of the heading machine for drilling can be utilized so that drilling equipment can be conveniently arranged and controlled in thelocal area to be not limited by a device position of an existing cutterhead module; and a manual drilling type common pneumatic drill or a mechanical drilling type hydraulic drilling rig or other equipment can be used for operation, so that the effects of being simple and convenient, high in tunneling efficiency and good in chamber forming are achieved.

The invention discloses an accidental water inlet monitoring device for an outdoor electric power box facility. The structure of the accidental water inlet monitoring device for an outdoor electric power box facility includes a monitoring device, a house, and drain pipes, wherein the monitoring device is arranged in the housing; the monitoring device is attached to the inner wall of the house; andtwo drain pipes are arranged at the bottom of the housing in a symmetrical structure, and penetrate through the bottom panel of the house. Under the common effect of an alarm device, a linkage mechanism and a drainage device, the accidental water inlet monitoring device for an outdoor electric power box facility can realize detection work of accidental water inlet of the box of the electric powerequipment; the drainage device can drain away water out from the box at the first time to avoid influencing normal operation of the internal electric power equipment; and the alarm device 101 can feed back the water inlet information to a work terminal, and then the work staff can know the situation at the first time and take measures to reduce the loss.

The invention belongs to the field of bridges, and particularly provides a bridge anti-collision barrier. The barrier comprises longitudinal barriers and transverse barriers. The longitudinal barriersare cylindrical, and comprise stainless steel steel cylinder vertical columns, stainless steel energy absorption components and energy absorption rubber protective sleeves, wherein the stainless steel steel cylinder vertical columns, the stainless steel energy absorption components and the energy absorption rubber protective sleeves are sequentially arranged from inside to outside, the steel cylinder vertical columns are connected with the energy absorption components through bearings, and the longitudinal barriers are connected together through the transverse barriers. The transverse barriers comprise top rectangular steel pipes for connecting the tops of the longitudinal steel pipes, and middle rectangular steel pipes for connecting the middles of the longitudinal barriers. The different top rectangular steel pipes and the different middle rectangular steel pipes are in lap joint through small-section rectangular steel pipes respectively. According to the bridge anti-collision barrier, the longitudinal barriers are provided with the steel cylinder vertical columns, the bearings, the energy absorption components and the rubber protective sleeves from inside to outside, multi-layer deformation is achieved due to impact loads, the energy absorption effect is good, the bearings are driven to rotate through load collisions to well evacuate and conduct energy, and energy is absorbed in disguise.

The invention discloses a translation telescopic roadblock machine. The translation telescopic roadblock machine comprises a pre-buried guide rail, the two ends of the pre-buried guide rail are connected with fixing frames, the interiors of the fixing frames are connected with movable frames, the bottoms of the movable frames are slidably connected to the pre-buried guide rail, two maintenance adjustment panels are symmetrically arranged on the top of each movable frame, the interior of each movable frame is connected with a plurality of reinforcing frames, the back surfaces of the movable frames are connected with racks, the surfaces of the fixing frames are connected with driving pieces, and the racks are connected with the driving pieces. According to the translation telescopic roadblock machine, by laying the pre-buried guide rail on the ground, when the guide rail is pre-buried, size measurement on the ground is not needed, and meanwhile, a foundation pit does not need to be excavated for installation, so that large-area damage of the ground is avoided; meanwhile, the fixing frames are fixedly connected with the top of the pre-buried guide rail through bolts, so that the installation step is simplified, the movable frames of the roadblock machine can conveniently move, and the movable frames can be conveniently and fast closed; and meanwhile, the movable frames are of frame structures, and the overall strength of the movable frames is increased through the reinforcing frames.

The invention discloses a grain seedling intelligent management and culture method and system. The method comprises the steps that data, collected by a soil moisture content monitor in real time, of different soil depths are collected; Real-time meteorological data including air temperature, relative humidity, wind speed, wind direction, rainfall, solar radiation and atmospheric pressure change data collected by the meteorological station in real time are received and corrected; the obtained data is compressed through linear fitting, and comparative analysis processing is carried out on the data and original data in a background big database; And the data subjected to the comparative analysis processing is provided to a background big database, one or more schedule tables are returned by the background big database according to the automatically generated retrieval type, and the one or more schedule tables are sent to the APP software of the user terminal. The method has the main beneficial effects that the corresponding management cultivation can be carried out on the grain seedlings in time, the normal growth of the grain seedlings is ensured, and the effective coverage and dynamic management of greening management are effectively realized. And meanwhile, large-area damage and necrosis of the seedlings under extreme weather conditions are avoided.

The invention discloses an intelligent maintenance system for a big data server, and relates to the field of server maintenance, and the system comprises a shell, a plurality of first motors, a plurality of propellers, and a controller. A plurality of servers are stored in the shell, the shell is fixed to the seabed, the plurality of first motors are evenly distributed on the surface of the shell,the first motors correspond to the propellers in a one-to-one mode, the output ends of the first motors are fixedly connected with the mounting ends of the propellers, and the controller is used forcontrolling starting and stopping of the first motors. And a power supply for supplying power to the first motor is arranged in the shell. The system can reduce the influence of seabed storage of theserver on marine organisms.

The invention provides a ship fender structure. The ship fender structure comprises a main body, an inner groove, an inserting hole, a mounting groove, an inner piece, an auxiliary piece and an outerpiece. The main body is of a rectangular plate-shaped structure and is made of a spring steel material; the inner groove is formed in the middle of the rear end of the main body; the inner groove comprises a side piece; the inner groove is of an arc-shaped structure; the side piece is made of rubber, and a plurality of circular holes are formed in the side piece; a plurality of contact pieces withconical structures are arranged in the circular holes of the side piece; the main body is used for being directly contacted with a ship body; the main body can drive the device to be mounted on two sides of a ship body, so that the ship body is protected. When main bodies are used, the multiple main bodies can be spliced and fixed to the outer side of the ship body, so that comprehensive protection is conducted, the ship fender structure can be used on different ship bodies and can be freely spliced according to needs when used, and if one single main body is damaged, the single main body canbe taken down to be maintained through manpower.

The invention relates to a warp knitting machine. The warp knitting machine is provided with a full-width weft insertion mechanism and a jacquard mechanism at the same time. The full-width weft insertion mechanism comprises a weft pushing device, and the weft pushing device comprises a plurality of weft pushing rods which are arranged perpendicular to a needle bed of the warp knitting machine in the length direction of the warp knitting machine; a weft pushing needle is arranged at the front end of each weft pushing rod; a long-strip-shaped through groove is formed in the side face, close to the front end, of each weft push rod in the length direction. A horizontally-fixed pin shaft penetrates through each long-strip-shaped through groove so as to guide and limit movement of the corresponding weft push rod. The rear parts of the weft push rods rotate around circle centers in the vertical direction, so that the weft pushing needles have composite motion of moving back and forth and swinging up and down for pushing wefts above the front end of the weft pushing needles into crochet hooks. According to the warp knitting machine, the advantages of full-width weft insertion and jacquardare combined, a knitted fabric is high in pattern stereoscopic impression, soft and firm, and a brand-new warp knitting machine category is developed.

The invention discloses an air bag type wind power blade structure. The structure comprises a structural skeleton and blade airbags, the structural skeleton comprises a blade tip segment shell, a blade root segment shell, a box web, a main beam (a windward surface and a leeward surface) and an airbag installing flange, the box web and the main beam (the windward surface and the leeward surface) are respectively formed with the windward and leeward surfaces of the blade tip and root segment shells, a main beam section is reserved between the blade tip and root segment shells, the airbag installing flange is distributed on the main beam section, bolt holes are formed in both sides of each airbag installing flange, bolt holes are formed in the sides, facing the airbag installing flange, of the blade tip and root segment shells, and a set of the blade airbags are respectively installed between the adjacent airbag installing flanges and between the blade tip and root segment shells and theadjacent airbag installing flange by screws. The structure uses an inflatable airbag to replace a blade body structure of a blade, the whole installation and disassembly process is convenient, and more convenience is brought for the subsequent maintenance of the blade.

The invention discloses an assembled cable wall penetrating device which is used for a cable channel firewall and comprises a loose-leaf pipe body. A plurality of telescopic foot stands are divided into two groups and are linearly arranged and uniformly mounted along the side wall of the loose-leaf pipe body respectively, and the arrangement planes of the two groups of telescopic foot stands are vertical to each other; each group of telescopic foot stands at least comprises two telescopic foot stands, the telescopic foot stands are detachably mounted on the loose-leaf pipe body, and the loose-leaf pipe body indicates that the side wall of the pipe body can be opened and closed. According to the present invention, the cable is isolated from the firewall through the loose-leaf pipe body, theinfluence of free wall penetration on the firewall is reduced to the maximum extent, and in addition, longitudinal and transverse external force generated in cable releasing is dispersed to the innerwall of a cable trench through the telescopic foot stand groups on the loose-leaf pipe body, so that damage of external force of the cable to a fragile fireproof flame-retardant baffle is reduced oreven eliminated, the damage area of the firewall is only the diameter of the loose-leaf pipe body, and large-area damage of the firewall is avoided. According to the assembled cable wall penetrating device, the structure is simple, the assembling and disassembling are convenient, and the occupied space during storage is reduced through the detachable assembling structure.

The invention discloses an electric power automation equipment case with a protection function, and relates to the technical field of electric power automation equipment. The electric power automation equipment case comprises a case body, a movable base is fixedly mounted at the bottom of the case body, a buffer assembly is fixedly mounted at the bottom in the case body, and a mounting box is fixedly mounted at the top of the buffer assembly; heat dissipation mechanisms are fixedly mounted on the inner walls, located on the two sides of the mounting box, of the lower end in the case body, a fireproof mechanism is fixedly mounted at the top in the case body, heat dissipation openings are formed in the inner walls, located on the two sides of the buffer assembly, of the lower end in the case body, and dustproof nets are arranged in the heat dissipation openings; and an opening and closing door is hinged to the front surface of the case body. The case has a relatively strong protection capability, can effectively prolong the service life of internal electric power automation equipment, has mobile fireproof performance, is relatively convenient to install and maintain, has relatively strong practicability and a relatively wide application prospect, and is worthy of popularization and application.

The invention provides an exposure method and device for a liquid crystal computer-generated hologram, which can avoid a problem of a mask exposure method adopted for manufacturing the liquid crystalcomputer-generated hologram at present, simplify the manufacturing process, reduce manufacturing cost, shorten a distance between a mask and a substrate to be exposed, and reduce damage to a photosensitive material on the surface of the substrate. The method comprises steps of (1) constructing a liquid crystal computer-generated hologram exposure device without adding a plane mirror and a spatiallight modulator; (2) putting the to-be-exposed substrate coated with a photosensitive material and adjusting parameters; (3) carrying out first exposure; (4) adding the plane mirror and the spatial light modulator into an exposure device, performing parameter adjustment of the plane mirror, the spatial light modulator and the to-be-exposed substrate, and adjusting input parameters of the spatial light modulator to enable the spatial light modulator to modulate incident plane light waves into light waves with expected wavefront; and (5) carrying out secondary exposure.

The invention relates to the technical field of sand-fixing soil-repairing agents, in particular to a wind erosion-resistant modified polyurethane sand-fixing soil-repairing agent and a preparation method. The sand-fixing soil-repairing agent is composed of a component A comprising diatomite modified lignin nitrate and a component B comprising a linear polyurethane pre-polymer. The component A isprepared by taking water and polyethylene glycol according to the weight percentage, adding polyethylene glycol into water, performing even stirring to obtain a lignin derivative solvent, dispersing diatomite into the lignin derivative solvent, adding lignin nitrate, and performing stirring at room temperature for 1-2 h. The component B is prepared by adding an oligomer diol into diisocyanate, performing even stirring and mixing, introducing an inert gas, and adding a hydrophilic chain extender and a non-hydrophilic chain extender for carrying out a reaction. When the sand-fixing soil-repairing agent is used, the two components A and B are thoroughly mixed and sprayed onto a flowing sand surface to carry out a reaction, and thus a polyurethane material for sand-fixing and repairing with high strength and high toughness is formed.

The invention discloses a household photovoltaic power station with a protection structure and a protection method thereof, relates to the technical field of household photovoltaic power stations, and aims to solve the problems that most of existing household photovoltaic power stations are exposed outside, lack of protection and are easy to damage in severe weather, so that the safety is low. A roof is arranged at the upper end of the house body, the house body is fixedly connected with the roof, a photovoltaic module is arranged at the upper end of the roof, a second stabilizing plate is arranged on one side of the photovoltaic module, a first stabilizing plate is arranged on one side of the second stabilizing plate, and a protection frame is arranged at the upper end of the second stabilizing plate. A first glass frame is arranged on one side of the protection frame, a second glass frame is arranged at the lower end of the protection frame, vacuum glass is arranged on one side of the first glass frame and one side of the second glass frame, a hydraulic mechanism is arranged on the other side of the protection frame, and an anti-falling plate is arranged on one side of the house body.

The invention provides an armored concrete wire pole breakage repair processing method. A lifting mechanism, a base surface derusting mechanism and a repair mechanism are included, the repair mechanism is installed on the lifting mechanism, the position located over the repair mechanism is provided with the base surface derusting mechanism, and the base surface derusting mechanism is installed onthe lifting mechanism. The problems that breakage repair of an existing wire pole is mostly conducted in the mode that a worker wears a climbing device to climb to the to-be-repaired breakage positionto conduct manual repair operation, and the mode has the defects of being long in construction time, high in labor intensity of workers, small in operation range, low in efficiency, poor in repair quality and high in self risk are solved.

The invention provides an exposure method and device for a liquid crystal computer-generated hologram, which can avoid a problem of a mask exposure method adopted for manufacturing the liquid crystalcomputer-generated hologram at present, simplify the manufacturing process, reduce manufacturing cost, shorten a distance between a mask and a substrate to be exposed, and reduce damage to a photosensitive material on the surface of the substrate. The method comprises steps of (1) constructing a liquid crystal computer-generated hologram exposure device without adding a plane mirror and a spatiallight modulator; (2) putting the to-be-exposed substrate coated with a photosensitive material and adjusting parameters; (3) carrying out first exposure; (4) adding the plane mirror and the spatial light modulator into an exposure device, performing parameter adjustment of the plane mirror, the spatial light modulator and the to-be-exposed substrate, and adjusting input parameters of the spatial light modulator to enable the spatial light modulator to modulate incident plane light waves into light waves with expected wavefront; and (5) carrying out secondary exposure.

The invention discloses an accidental water inlet monitoring device for an outdoor electric power box facility. The structure of the accidental water inlet monitoring device for an outdoor electric power box facility includes a monitoring device, a house, and drain pipes, wherein the monitoring device is arranged in the housing; the monitoring device is attached to the inner wall of the house; andtwo drain pipes are arranged at the bottom of the housing in a symmetrical structure, and penetrate through the bottom panel of the house. Under the common effect of an alarm device, a linkage mechanism and a drainage device, the accidental water inlet monitoring device for an outdoor electric power box facility can realize detection work of accidental water inlet of the box of the electric powerequipment; the drainage device can drain away water out from the box at the first time to avoid influencing normal operation of the internal electric power equipment; and the alarm device 101 can feed back the water inlet information to a work terminal, and then the work staff can know the situation at the first time and take measures to reduce the loss.

The invention discloses a method for mechanical branch underground excavation construction of rectangular and quasi-rectangular cross-section underground engineering. A peripheral structure is divided into a plurality of branch structures through a section cutting plane perpendicular to the rectangular and quasi-rectangular cross-section; segmentation prefabrication is performed on each branch structure in the longitudinal direction perpendicular to the cross-section plane, and a plurality of segmentation prefabricated parts are obtained from each branch structure; the segmentation prefabricated parts are composed of permanent structural elements and temporary structural elements, the permanent structural elements are branch structure segmented blocks and are detachably connected with the temporary structural elements; guide rails and guide rail grooves are correspondingly positioned between the adjacent segmentation prefabricated parts, the guide rails are inserted into the guide rail grooves to perform adhesion of the adjacent segmentation prefabricated parts and guide positioning in the jacking process; an application tunneling device constructs a starting space and a receiving space; and jacking construction is performed on the segmentation prefabricated parts of each branch structure. According to the method, large rectangular and quasi-rectangular cross-section underground spatial engineering can be constructed safely efficiently, environmentally friendly and economically below roads and buildings.

The invention relates to the technical field of sand-fixing and repairing soil agents, in particular to a wind erosion-resistant modified polyurethane sand-fixing and repairing soil agent and a preparation method thereof. The sand-fixing and repairing soil agent is composed of A component of diatomite-modified lignin nitrate and B component composed of linear polyurethane prepolymer. Component A is: take water and polyethylene glycol according to the weight percentage, add polyethylene glycol into the water, and stir evenly to obtain a lignin derivative solvent; first disperse diatomaceous earth in the lignin derivative solvent, and then add Add lignin nitrate and stir at room temperature for 1-2 hours to obtain the product; component B is: add oligomer diol into diisocyanate, stir and mix well, then inject inert gas, add hydrophilic chain extender and Reaction with non-hydrophilic chain extender, that is. When in use, fully mix the two components of A and B and spray them on the surface of the mobile sand, and react to form a high-strength, high-toughness polyurethane material for sand-fixing and repairing.

A method for sampling root nodules of cherry blossoms by using a Luoyang shovel, the steps are: dig out the soil balls of the plants to be transplanted together with the roots, select a sampling point, and then use the prepared Luoyang shovel to carry out soil extraction, and the direction of soil extraction is towards the soil balls The center of the sphere, the soil depth is 1 / 2-3 / 5 of the radius of the soil ball; soil sample extraction and boxing; remaining soil backfill: put the remaining soil blocks in the Luoyang shovel head back into the pit for Backfill and compact; quickly detect sample disease. Through reasonable steps, the invention detects whether the tree has cherry root nodule disease without damaging the soil ball at the root of the tree in a large area, thereby ensuring the survival rate of transplanted plants in saline-alkali land.