557results about How to "No secondary damage" patented technology

The invention relates to a method and a device for restraining and preventing thermal runaway of a lithium ion battery. According to the method, a liquid inert gas is utilized to perform spraying refrigeration and fire fighting on a faulted lithium ion battery. The method comprises the following steps: A, selecting spraying time; B, determining the spraying quantity of a sprayed gas; C, determining a spraying mode, wherein the spraying mode refers to continuous spraying or interrupted spraying. The device comprises a control cabinet, a storage tank, a main control valve, a secondary control valve, a nozzle, a detector and a safety valve, wherein the control cabinet is a manual button control cabinet or an automatic control cabinet provided with a PLC (Programmable Logic Controller); the detector comprises a temperature sensor used for monitoring the temperature of one or more battery monomers. The method and the device have the advantages that dual effects of refrigeration and fire fighting are achieved, a security mode is complete in functions, stable, safe, reliable and efficient, a vaporization product of the liquid inert gas is nontoxic, environmentally friendly and clean as well as free from secondary damages on battery equipment.

The invention discloses a patient ferry bed which comprises a vehicle body, wherein the vehicle body is provided with a lifting mechanism and universal casters. The ferry bed that can move horizontally is installed on the vehicle body. The ferry bed comprises a bed board mechanism, a bed head and a bed tail beam mechanism. The patient ferry bed is of a single-layer mobile bed board structure and is simple in structure, needed parts are less, and the patient ferry bed is low in production cost and failure rate and convenient to maintain; the friction force caused by the single-layer mobile bed board structure is very small, a belt does not generate kinetic friction with the bed surface and the body of a patient, a bed sheet cannot be wound up, the safe transfer of the patient is achieved, and secondary injury is avoided; operators almost do not need to be in contact with the patient in the process, and the propagation of infecting bacteria is effectively avoided.

The invention discloses a friction damper for ancient timber structure tenon-mortise joints, comprising a first steel plate portion (1) connected with a column, a second steel plate portion (2) connected with a beam, an inter-plate friction lining (3), a tightening bolt and washer (4), a first hoop (5) for connecting the first steel plate portion (1) with the column, a second hoop (6) for connecting the steel plate portion (2) and the beam, and a bolt hole (10). After assembly, the first steel plate portion (1) and second steel plate portion 92) connected with the beam and column can rotate relative to each other, coefficients of friction between all contact faces are equal, and a certain precompression is applied to a tightening bolt to control frictional amplitude. By making use the feature of a tenon-mortise joint dissipating energy by friction, the damper enables improved the ability of the tenon-mortise joint to dissipate energy and reduced secondary damage to an original structure and is small in size, easy to mount, maintain and replace and especially suitable for wide application in ancient timber structures.

The present invention provides an eluent for repairing contaminated soil. The eluent comprises, by weight, 50-70 parts of a nonionic biosurfactant and 5-30 parts of an anionic surfactant. The compounding synergism of the nonionic biosurfactant and the anionic surfactant enhances the solubilizing effect of the eluent on organic pollutants in soil, especially polycyclic aromatic hydrocarbons, so theelution efficiency of the eluent is significantly improved; and the components of the elutent are biodegradable, so the eluent does not cause secondary damage to the environment in the use process, and is an efficient, clean and environmentally-friendly in situ eluent for repairing contaminated soil. The eluent provided by the invention is firstly foamed in the use process, so the spreading efficiency of an eluent solution in the soil medium is increased, the migration of the eluent in the horizontal direction is enhanced, and the uniformity and the repairing efficiency of the eluent in the soil are further improved.

The invention discloses pH-responsive bi-crosslinked mussel bionic adhesive intelligent drug-loading hydrogel as well as a preparation method and application thereof, and belongs to the technical field of medical materials. The preparation method of the pH-responsive adhesive intelligent drug-loading hydrogel comprises the following steps: oxidizing a polymer containing ortho-hydroxyl into a polymer containing an aldehyde group; carrying out a Schiff base reaction with molecules containing amino groups and catechol structures to prepare a functional polymer of which the side chain contains catechol structure micromolecules; a solution of the functional polymer and the antibacterial nano material is mixed with a solution of a polymer containing amino groups and a proper amount of an oxidizing agent, so that the double-crosslinking adhesive drug-loaded hydrogel can be rapidly prepared. By adding hydrophilic drugs or drug-loaded nano particles and the like, application of the drug-loaded nano particles in biomedicine is endowed. The drug-loaded hydrogel is simple in preparation process, has good adhesion performance, can quickly release drugs through pH response, can be naturally dissociated after pH response, does not cause damage to tissues, and has the advantage of good biocompatibility.

The invention is a process method for unblocking water and oil wells in an oil field by biological acid, characterized by mixing biological acid and water as well as assistant into unblocking agent, squeezing the unblocking agent into oil or water well at normal temperature, so that the unblocking agent gradually seeps into strata, the biological acid seeps into throats to enter in micro-scopical holes and are absorbed on the surface layers of cores, where the squeezing radius is 1-15 m, pressure is stabilized for 0-1.5 h, and 4-18 h later, opening the well,and not discharging fluid, thus improving core property, recovering stratum permeability, stopping stains redeposition, reducing oil and water interface tension and raising crude oil recovery.

The invention relates to an external spray type antibacterial liquid dressing, and particularly relates to chitosan biological film-forming glue and a preparation method thereof. The chitosan biological film-forming glue comprises the following raw materials in percentage by weight: 0.5%-6% of modified chitosan, 0.01%-0.15% of mint, 0.01%-0.15% of acidifying agents, 0.2%-0.4% of radix scutellariae, 0.1%-0.3% of phellodendron and the balance of deionized water. The chitosan biological film-forming glue disclosed by the invention is prepared into a solution by adopting the modified chitosan, thereby keeping the self physicochemical characteristics and function roles of the chitosan and achieving good solubility property. The chitosan biological film-forming glue disclosed by the invention has good biocompatibility, multiple unique functions, namely higher solubility, easiness for organism absorption, and the like which do not exist in general chitosan, and well utilizes the biological activity of the chitosan.

The invention discloses a finger exercise recovery instrument which comprises a wrist fixing portion, a pull rope portion and a damping cylinder portion. The pull rope portion and the damping cylinder portion are fixedly mounted on the wrist fixing portion and connected with each other, the wrist fixing portion is fixed onto a wrist, and five fingers are fixed onto the pull rope portion and pull the pull rope portion to take exercises under the damping action of the damping cylinder portion. Initial finger exercise effects are obvious under the damping action of the damping cylinder portion, resistance is low, finger movement travel is large, the movement range of the fingers is widened, the fingers are protected from secondary injury by the damping effect of holes, potential danger is avoided, and use requirements of different rehabilitation periods can be met by adjusting different resistance requirements.

The invention provides an overwater emergency rescue device of an unmanned aerial vehicle. The device includes a putting control mechanism, a putting bracket, dehooking devices, life buoys, ropes andan LED searchlight; the putting control mechanism comprises a remote control receiver, a steering engine, a camera and a wireless image sending system; the remote control receiver and the camera are arranged on the putting bracket, the camera is linked with the wireless image sending system, and the remote control receiver is linked with the input end of the steering engine and controls the dehooking devices to be opened through the steering engine to put down the life buoys; the putting bracket is installed on the bottom of the unmanned aerial vehicle and consists of a bracket cross girder and a bracket vertical girder, the dehooking devices are arranged on the bracket cross girder and connected with the life buoys through the ropes, and the life buoys sleeve the bracket vertical girder.By loading the device on the unmanned aerial vehicle, fast arrival to a rescue scene can be achieved, rescue workers can accurately put down the life buoys according to images photographed by the camera, the accuracy of putting the life buoys is high, and timely rescue is achieved.

The invention discloses an automatic control method for surface defect shaping of strip steel. The automatic control method for surface defect shaping of the strip steel comprises the steps of feeding, rough rolling, detecting, material supplementing, polishing, washing, knocking and winding, wherein rough rolling is conducted on the planar strip steel, the surface of the planar strip steel is detected, the defect type is judged according to a detection signal, and at least one of material supplementing, polishing and knocking is conducted on the portion, with a shape defect, of the surface of the strip steel according to the defect type and the position. According to the automatic control method for surface defect shaping of the strip steel, the defect on the surface of the strip steel can be detected automatically, the defect type is judged according to the detection signal, at least one of material supplementing, polishing and knocking is adopted for conducting corresponding shaping on different shape defects on the surface of the planar strip steel according to the defect type, in this way, fine shaping of tiny shape defects on the surface of the strip steel is achieved, working efficiency is high, the shaping effect is good, secondary damage is avoided during shaping, and the smoothness of the surface of the shaped strip steel is high.

The invention discloses a sling-type transporting sickbed, and relates to a transferring device for a patient or a disabled person. The sling-type transporting sickbed comprises a carriage frame, a supporting plate, a supporting plate regulating mechanism arranged at the bottom of the carriage frame, and a transferring mechanism arranged at the top of the carriage frame, wherein the supporting plate regulating mechanism comprises a supporting plate lifting device, a bearing frame mounted on the supporting plate lifting device, and a supporting plate laterally-moving device capable of transversely moving the supporting plate; the supporting plate is mounted on the bearing frame in a transversely movable way; the transferring mechanism comprises an upper frame body, a hoisting device, a laterally moving device capable of transversely moving the upper frame body, and a hoisting assembly; the hoisting device is connected with the hoisting assembly; the upper frame body is mounted at the top of the carriage frame in a transversely movable way. The moving parts of the sling-type transporting sickbed provided by the invention are electrically controlled, so that semiautomatism is achieved and the sling-type transporting sickbed is convenient to use; before a patient is hoisted, the supporting plate can be regulated to press the side of the sickbed so as to provide a support for hoisting of the patient, so that lateral overturning is prevented, the transferring process is steady and reliable and the safety coefficient is high.

The invention discloses a method for relieving water blocking at a high temperature in the oil and gas exploitation process. According to the method, an electrical heating rod is lowered into a reservoir stratum segment and is heated to a certain temperature, heat is transferred into a formation water blocking area through a casing pipe and a cement sheath, formation fluid in gaps is heated to evaporate and flow into a shaft, and then damages caused by water blocking can be avoided. The diameter of the electrical heating rod is 4/5 the inner diameter of the casing pipe of the reservoir stratum segment; the length of the electrical heating rod should be equal to the thickness of the reservoir stratum segment, and the electrical heating rod can be formed by connecting a plurality of fixed-length heating rods in series; the electrical heating rod should be parallel to the reservoir stratum segment when lowered into the reservoir stratum segment; the heating temperature of the electrical heating rod ranges from 300 DEG C to 600 DEG C, and the heating time is estimated. Principles are reliable, and the method is easy and convenient to implement, capable of effectively solving the problem of formation water blocking and suitable for barefoot well completion as well as cased hole completion and has broad application prospects.

The invention relates to a medicinal composition for treating skin wounds. The medicinal composition is a medicament prepared from nakedflower beautyberry leaf and blumea balsamifera. The invention also provides a preparation method for the medicinal composition. The medicinal composition has a remarkable effect of treating skin wounds, has the effects of eliminating inflammation, relieving pain, promoting tissue regeneration and dispelling scar, ensures that a patient is scarless after being healed, does not have toxic or side effect, and is nonirritant. Chinese herbal medicines used by the medicinal composition are low in price, the medicine source is wide, and the medicinal composition is an ideal medicine for treating skin wounds.

The invention relates to a telescopic flexible driving rescue robot. The telescopic flexible driving rescue robot comprises a flange plate, an upper platform and working arms, the flange plate is fixedly arranged at the central position of the first end surface of the upper platform, the working arms are symmetrically arranged on the first end surface of a second side plate and the first end surface of a third side plate of the upper platform, each working arm comprises a flange connecting plate, an outer sleeve shell, an inner sleeve shell, a sliding rail, a sliding block, a driving airbag and a bearing airbag, the bearing airbag is arranged on the inner side of the inner sleeve shell, the first end of the bearing airbag is fixedly connected with the second end of the inner sleeve shell,the second end the bearing airbag is fixedly connected with the inner side first end surface of the inner sleeve shell, the driving airbag is arranged on the inner side of the outer sleeve shell, thefirst end of the driving airbag is fixedly connected with the first end surface of the inner side of the outer sleeve shell, the second end of the driving airbag is fixedly connected with the first end of the bearing airbag, and the telescopic movement of the working arm can be realized under the driving of the driving airbag to completer the rescue task. The integral framework of the robot is made of rigid material, so that the load requirement can be met, and the flexible driving of the driving airbag is adopted to effectively ensure the personal safety of a rescued object.

The invention discloses a lightweight flexible LSOH (Low Smoke Zero Halogen) fire-resistant low-voltage marine cable and a process flow thereof. The lightweight flexible LSOH fire-resistant low-voltage marine cable comprises a tin-plated flexible conductor, a ceramic silicone rubber insulating layer, an LSOH flame-retardant filling material, an LSOH wrapping tape layer, an LSOH flame-retardant isolating sleeve, a metal braid armor shielding layer and an LSOH flame-retardant protection sleeve. The cable disclosed by the invention has the advantages of heat insulation, fire insulation, waterproofness, shock resistance, low thermal weight loss, low smoke, zero halogen, flame retardance and the like. In case of a fire, a hard shell formed by the insulating layer can take good effects of flame retardance, fire resistance, fire prevention and fire insulation and effectively ensures smoothness of a line. The cable has the advantages of being flexible, small in size, light in weight and excellent in mechanical property and electrical property, meets the requirement of a complex laying environment in a ship, can effectively save a ship space and reduce a light ship weight of the ship and improves a cargo dead weight of the ship.

The invention relates to the field of medicinal dressings and in particular relates to a multifunctional liquid dressing and a preparation method thereof. The multifunctional liquid dressing comprises the following components in parts by mass: 2-8 parts of polyvinyl butyral, 0.5-0.8 part of sodium alginate-polyvinylpyrrolidone, 0.2-0.6 part of nano-silver-chitosan, 0.1-0.4 part of sodium carboxymethylcellulose, 0.1-0.4 part of carrageenan, 0.1-0.4 part of menthol and 91-97 parts of absolute ethyl alcohol. The multifunctional liquid dressing disclosed by the invention is waterproof, breathable and visible in wound, can prevent infection and contributes to wound healing.

The invention relates to a preparation method of a bacteriostatic softening agent for aged hard and dry leather. The preparation method specifically comprises the following steps: adding phosphorus pentoxide into wool fat, and heating and stirring to modify; then, titrating to neutral by sodium hydroxide liquor and drying to obtain phosphorylated modified wool fat; and finally compounding wool fat with tween-80, 2-octyl-4-isothiazolin-3-one, tea saponins, ethanol and deionized water to prepare a bacteriostatic softening agent product. The preparation method provided by the invention has the advantages of multiple functions, remarkable effect, harmlessness and the like.

The invention provides a pneumatic joint-type rehabilitation manipulator. A pneumatic joint (2) is of a retractable pleated airbag structure; a wrist air inflation and deflation part (11) is communicated with the airbag structure of the pneumatic joint (2); a finger part (13) is matched with a connection structure of the hand bone, and a plurality of knuckle parts (131) on the finger part (13) aresequentially and rotatably connected and rotatably connected to a palm part (12) separately; the knuckle parts (131) are driven to rotate through the extension and retraction of the pneumatic joint (2) and provided with a wearing structure (3) for fixing the human hand. The pneumatic joint-type rehabilitation manipulator is suitable for training of patients with hand diseases in various occasionsespecially at home, helps the patients with the hand diseases to carry out correction rehabilitation training and is suitable for not only rehabilitation persons who cannot conduct active training with the hands and but also users who can carry out active training to a certain degree. The manipulator is simple in structure, convenient to manufacture and carry, easy to operate, economical and practical and has good market prospects.

The invention discloses a whole bridge synchronized jacking support replacing system and a construction method. By adopting a PLC (Programmable Logic Controller) hydraulic synchronized jacking system,synchronization and accuracy of a jacking process can be accurately ensured, destruction caused by uneven stress of a bridge can be avoided, various parameters of a control system can be set and controlled on a touch screen, and unification of operation is ensured due to centralized operation; all data such as displacement, pressure, jacking height and error during running of the system can be displayed in real time, an abnormal situation during the running of the system can be subjected to automatic treatment and alarm displaying, the operation of the system becomes simpler and safer, and real-time monitoring of a whole process of support jacking and replacing is realized. The invention aims to provide the whole bridge synchronized jacking support replacing system which utilizes top space of a cover beam as counterforce support and realizes support replacement of the whole bridge in a synchronized and simultaneous jacking way, and the construction method.

The invention relates to a preparation method of an antibacterial and antifungal fat-liquoring agent suitable for aged leather. The preparation method comprises the following specific steps: adding lactic acid and hydrogen peroxide into soybean oil, heating and mixing to carry out modification, then carrying out titration on a modified mixture by virtue of a sodium hydroxide solution until the mixture is neutral, and drying the mixture to obtain lactated modified soybean oil; compounding the lactated modified soybean oil, span-80, 2-octyl-4-isothiazoline-3-ketone, sodium sulfite, ethanol, acetic acid and deionized water to prepare an antifungal fat-liquoring agent finally. The preparation method has the advantages of versatility, obvious effect, harmlessness and the like.