54results about How to "Good protective structure" patented technology

The invention provides an electric lift type storage device, in order to solve the problem of poor safety of an electric lift type device when being applied to civil environment. The electric lift type storage device comprises a top bin (1), a rope belt (8) retracted by a motor, a lifting bin (2) hung in the top bin (1), and a sensor and a bearing plate arranged at the bottom of the lifting bin (2), wherein, the bearing plate (3) is supported or drawn to trigger the sensor and interrupt the operation of the lifting bin, and the articulation position between the rope belt and the lifting bin is provided with a damper used for quickly eliminating the swinging of the box body. When a plurality of devices are arranged in parallel, a driving rod can be utilized to share one motor with an electromagnetic clutch.

The present invention discloses a fiber type osmotic pressure sensor with a fine-tuning device and automatic temperature compensation. The device comprises a protection shell and a permeable stone housing. The protection shell is equipped with a fiber fixed substrate. One end of the fiber fixed substrate is a rigid structure, and the other end of the fiber fixed substrate is an elastic structure. A temperature optical fiber is fixed at one end of the rigid structure, a pressure fiber grating is fixed at one end of the elastic structure, the connection part of the fiber fixed substrate and the pressure fiber grating is equipped with an elastic adjustment device, and the external part of the pressure fiber grating is the elastic film of the tail end of the fiber fixed substrate. The fiber type osmotic pressure sensor has the advantages of strong anti-interference ability, high sensitivity, high precision and stable performance, the automatic temperature compensation can be achieved, and the temperature and liquid pressure can be measured at the same time. The linear performance of the elastic film is good, good deformation can be generated under small pressure, and the sensitivity is excellent. The fiber type osmotic pressure sensor has a good protection structure and good waterproof and moisture-proof performance and can be applied to a harsh environment.

The embodiment of the invention provides a dangerous rock mass composite protection structure and relates to the field of dangerous rock mass protection. The dangerous rock mass composite protection structure comprises a rock mass assembly and a protection net assembly. After a steel wire rope on the winch part is tightened and a first steel rope is stressed and tensioned, a second rope buckle at a second lantern ring is gradually unfastened till the second rope buckle relieves pressing of the first steel rope, then the steel wire rope on the winch part is tightened to drive the first steel rope to be tightened, meanwhile, after the tensioning force of the first steel rope is gradually increased and the first steel rope drives the protective net to be tensioned, the second rope buckle is screwed, a purpose of tensioning the tensioning steel rope with the smaller tensioning force is achieved, in the process, the first steel rope is in the tensioning state, the situation that all the tensioning force of the tensioning steel rope needs to be relieved firstly is reduced, the dangerous rock body protection structure in the related technology is effectively improved, and the tensioning force of the tensioning steel cable is inconvenient to increase under the condition that the tensioning force of the tensioning steel cable is not relieved.

The invention provides hyperelastic silk fibroin micro-nano hybrid fiber aerogel and a preparation method and application thereof.The preparation method includes the steps that stable silk fibroin micro-nano hybrid fiber dispersion liquid is obtained through non-alkali degumming, deep-eutectic solvent multi-scale stripping, suction filtration washing and ultrasonic dispersion; a faintly acid eutectic solvent system-urea/guanidine hydrochloride and choline chloride/lactic acid system is adopted in stripping; the method is beneficial to protecting the long chain and protein aggregation state structure of the silk, meanwhile, the weak acid system is closer to the isoelectric point of the silk, the silk has the charge neutralization characteristic, the contact area with the deep eutectic solvent system is increased, and the swelling degree is increased. The silk fibroin micro-nano hybrid fiber dispersion liquid is poured into a customized mold and then subjected to freeze-induced self-assembly and freeze-drying, and the silk fibroin micro-nano hybrid fiber aerogel is obtained and has excellent heat insulation and particle filtering performance.

The invention relates to a method for detecting and distinguishing preignition and carbon deposition of an engine based on ionic current. The method comprises the following steps that S1, an ionic current signal and a cylinder pressure signal of the engine under each working condition are collected; S2, a carbon deposition cycle and a preignition cycle of the engine are screened out by utilizing the ionic current signals, and the preignition cycle and a preignition moment are marked for the ionic current signals by utilizing the cylinder pressure signals; S3, a training data set is constructedby using the marked ionic current signals, and a recurrent neural network model is trained; and S4, the trained recurrent neural network model is transplanted to an engine ECU for real-time detectionof preignition and carbon deposition of the engine. Compared with the prior art, the method has the advantages of being higher in detection success rate, lower in misjudgment probability and the like.

The invention provides an auxiliary installation control method for a building light-transmitting plate, and relates to the field of mounting racks. The auxiliary installation method is realized based on an auxiliary rack body, the auxiliary rack body comprises a base, the four corners of the top end face of the base are each fixedly connected with a sliding retractable rod through bolts; each sliding rod is sleeved with an elastic piece, and a tooth row is welded to each clamping base. The tooth rows and clamping teeth are clamped with each other, the tooth rows and the clamping teeth are right-angle teeth, the tooth rows and the clamping teeth jointly form a clamping locking structure, and the tooth rows and the clamping teeth are clamped with each other under the action of elastic stretching force of the elastic piece, so that automatic locking of a frame body can be prevented.

The invention discloses a preparation method and application of marine fish oligopeptide capable of resisting fatigue and reducing uric acid. The preparation method of the marine fish oligopeptide provided by the invention comprises the following steps: (1) mincing pretreated marine fish meat into fish paste, adding distilled water into the fish paste, homogenizing, adjusting the pH value, carrying out autolysis enzymolysis, and adding exogenous protease to carry out synergistic enzymolysis, so as to obtain a zymolyte; and (2) carrying out enzyme deactivation and centrifugation on the zymolyte, taking supernate, decoloring the supernate, filtering through a ceramic membrane and an ultrafiltration membrane, concentrating and drying to obtain the marine fish oligopeptide. The marine fish peptide with the dual effects of resisting fatigue and reducing uric acid has the functions of improving the fatigue state and resisting hyperuricemia, and a new thought is provided for high-valued utilization of marine fishes and development of novel peptide products.

The invention provides dismantling and hoisting integrated equipment for piers and bearing platforms at the lower part of a bridge, relates to the field of bridge construction, and solves the problemsthat organic combination of pier dismantling and hoisting cannot be achieved at the same time, only the hoisting effect can be achieved usually, and explosives need to be thrown into manually drilledholes to burst the piers during dismantling; and after the piers are drilled and exploded into large stones, a grabbing structure of a hoisting device is poor in slip resistance, and the phenomenon that the stones fall off easily in the hoisting process. The dismantling and hoisting integrated equipment for the piers and the bearing platforms at the lower part of the bridge comprises a body seatand a rectangular plate, wherein a clamp plate is welded to the body seat. The head ends of two fixing rods are both of a conical structure, and the tail ends of the two fixing rods are both of a spherical structure; the tail ends of the fixing rods are contact with a cam; when the cam rotates along with a rotating shaft A, the fixing rods are in a reciprocating state, so that the vibration drilling of the fixing rods is achieved, and thus the vertical tension of the rotating shaft A can be reduced through the fixing rods.

The invention belongs to the technical field of submerged arc furnaces, and particularly relates to an automatic pressure relief system for a furnace cover of a submerged arc furnace. The automatic pressure relief system for the furnace cover of the submerged arc furnace aims at the problems that the function of an existing furnace cover pressure relief device is single and the protection effect is poor, the following scheme is provided at present. The automatic pressure relief system comprises a furnace cover body, wherein a sealing plate is fixedly connected to the upper surface of the furnace cover body, the upper surface of the sealing plate is provided with a protective cover, the inner surface of the sealing plate is movably connected to a pressure relief cover through a hinge, the upper surface of the pressure release cover is fixedly connected to a weight gain box, a pressure release cavity is formed inside the furnace cover body, and a locking plate is arranged at one end, away from the hinge, of the pressure release cover. The pressure relief system has the functions of automatic pressure relief and the automatic reset of the pressure relief cover, the trouble of manual shutdown operation is avoided, the working efficiency is improved, a multi-point temperature monitoring structure is added, so that people can know the temperature condition of furnace steam in the furnace cover in real time, meanwhile, the protective effect is good, and the safety of people can be guaranteed to the largest extent when needed.

The invention relates to a methane alarm apparatus protection structure which comprises a protection cover shell, a filling air bag piece and an alarm apparatus body so as to avoid sparks in the opening and closing process of the protection cover shell. The protective cover shell comprises a bearing box body, an observation door and a blade piece, the bearing box body is arranged on the outer side of the alarm instrument body, the blade piece is arranged on the inner side of the observation door and is rotationally connected with the observation door, and the observation door is rotationally connected with the bearing box body and is arranged on one side of the bearing box body. The blade piece is additionally arranged to be matched with the observation door, so that even if the alarm instrument is used underground, the situation that impurities in air are attached to the alarm instrument body and consequently the methane content cannot be checked can be effectively avoided, meanwhile, protection on the alarm instrument body is improved, and the service life of the alarm instrument body is effectively prolonged.