50results about How to "Reduce structural stress" patented technology

The invention belongs to the field of geological research, and discloses a disintegration instrument capable of eliminating water turbidity in the loess disintegration process and a use method thereof, the disintegration instrument comprises a support, a transparent water tank, a camera and a data acquisition device; a water pump is arranged in the transparent water tank; a plurality of stacked filtering water tanks are arranged on the transparent water tank, a seepage hole-containing water pipe is arranged in the filtering water tank on the top layer, and one end of the seepage hole-containing water pipe is connected with a water outlet pipe arranged on a water outlet of the water pump; fully-paved filter cotton is arranged at the bottom of each filter water tank, every two adjacent layers of filter water tanks are connected through a bottom filter type drain pipe, a connected filter water return pipe is arranged on a water blowing port of the bottom filter type drain pipe of the filter water tank at the bottom layer, and the other end of the filter water return pipe is located in the transparent water tank; a tension sensor is arranged on the bracket, a connecting ring is arranged on the tension sensor, a filter screen for bearing a loess sample is arranged on the connecting ring, and the filter screen is positioned in the transparent water tank. And suspended sediment generated by the test can be effectively removed, and the accuracy of data is ensured.

The utility model provides a one-way valve which comprises a valve seat and a guide sleeve located at one end of the valve seat, the valve seat is provided with a valve seat through hole penetrating through the two ends of the valve seat in the axial direction of the valve seat, the guide sleeve is provided with a guide cavity, the cavity wall of the guide cavity is provided with a circulation structure, and the one-way valve further comprises a spherical valve element located in the guide cavity and provided with a conduction position and a cut-off position. When the spherical valve element is located at the conduction position, fluid can circulate between the valve seat through hole and the circulation structure, when the spherical valve element is located at the cut-off position, the spherical valve element blocks an opening of the valve seat through hole, the spherical valve element can move in the axial direction of the valve seat through hole under the action of the pressure difference between the two sides of the spherical valve element, and in the using process of the one-way valve, the fluid can flow through the circulation structure. The value of a gap between the spherical valve element and the guide cavity is A, and A is not smaller than 10% of the diameter of the spherical valve element. According to the utility model, the probability that the valve core is stuck due to the size deviation of the guide sleeve after expansion caused by heat and contraction caused by cold can be reduced.

The present invention belongs to the field of mechanical design technology, and particularly relates to an Ω-shaped metal ring for connecting composite thin-walled circular tubes, an Ω-shaped metal ring and a composite thin-walled circular tube assembly and a molding method thereof, the Ω-shaped metal ring comprising an Ω-shaped metal ring body, the Ω-shaped metal ring body comprising an Ω-shaped corrugated portion and a circular tube portion extending outward along the outer edge of the Ω-shaped corrugated portion, the wall thickness of the circular tube portion being greater than the wall thickness of the Ω-shaped corrugated portion, the connection between the circular tube portion and the Ω-shaped corrugated portion being formed with a chamfered portion forming a continuous arc transition, and the outer edge end of the circular tube portion being formed with a shoulder whose wall thickness is thicker than that of the circular tube portion. In the present invention, the Ω-shaped metal ring structure can reduce the problems of low strength and large deformation of traditional U-shaped or V-shaped metal ring structures, and provide a connection structure solution for multi-component modular mechanical equipment that simultaneously meets multi-dimensional requirements such as strength, vibration, deformation control, and connection sealing.

The invention discloses a snowmobile gear shifting structure, and belongs to the field of snowmobiles, the snowmobile gear shifting structure comprises a box body, a gear shifting support and a gear shifting assembly are mounted on the box body, a gear shifting limiting opening is formed in the gear shifting support, the gear shifting limiting opening comprises a gear shifting channel, a parking opening is connected to the gear shifting channel, and the parking opening intersects with the gear shifting channel; a gear entering opening and a gear reversing opening are formed in the two sides of the parking opening correspondingly, the gear entering opening and the gear reversing opening both intersect and communicate with the gear shifting channel, and due to the fact that the gear shifting assembly needs to move in the gear shifting channel during gear shifting, the gear shifting assembly does not stay in the gear shifting channel before and after gear shifting and is located in the gear entering opening or the gear reversing opening or the parking opening; therefore, mistaken gear shifting caused by mistaken touch is avoided, and the problem that in the prior art, mistaken touch or gear shifting failure is prone to occurring when the snowmobile shifts gears by shifting the gear shifting rod front and back is solved.

The invention relates to the technical field of power transmission line structures, in particular to a hoop type connection power transmission tower angle steel reinforcing device which comprises a mounting component, a main material, a reinforcing assembly arranged on the main material, a connecting assembly arranged on the reinforcing assembly and an inserting assembly arranged on a connecting piece. The fixing assembly is arranged on the inserting assembly; the CPRP connection power transmission tower angle steel reinforcing structure is provided in a targeted mode from the angle of a wind load factor borne by a tower and the angle of stress, the super-strong tensile elasticity and fatigue resistance of a CFRP material are utilized, the strength of the tower is improved, the strength of the tower is improved, and the strength of the tower is improved. And meanwhile, due to the hoop type, the reinforcing material and the main material are synergistically and integrally stressed, the stress is uniform and continuous, the wind resistance of the tower is enhanced, the overall strength of the tower is effectively improved, and instability and deformation are avoided.

The application discloses a wet oxidation catalyst, which comprises the following raw materials in percentage by weight: 0.1-2% noble metal, 1-10% graphene-based material, and the rest is a carrier, wherein the carrier is modified titanium dioxide, specifically, a rare earth-transition metal-oxygen vacancy-mesoporous three-dimensional gradient titanium dioxide carrier. The application aims at solving the technical problem of poor stability of the catalyst.

The invention relates to the technical field of underwater structures, in particular to a large-dip-angle bare rock cofferdam based on a deepwater area and a construction method.The large-dip-angle bare rock cofferdam comprises a cofferdam body, in the construction process, the face, facing the upstream direction, of the cofferdam body serves as the upstream face, and the face, back to the shore side, of the cofferdam body serves as the back-to-shore face; the face, facing the shoreside direction, of the cofferdam body serves as a shoreside face, a water flow guiding structure is arranged on the upstream face of the cofferdam body, and the water flow guiding structure guides water flow to the side, facing the shoreside, of the cofferdam body. According to the large-dip-angle bare rock cofferdam based on the deepwater area and the construction method, water flow flowing to the upstream face of the cofferdam body can be guided to the bank face, so that lateral pressure caused by an inclined riverbed is relieved, the bearing capacity needed by the bank face of the cofferdam body is reduced, and the situation that the cofferdam is prone to deformation or displacement is avoided.

The utility model discloses a river-crossing pipeline structure which comprises a foundation, two buttresses are poured on the foundation, the two buttresses are arranged on two banks of a river channel, and a pipeline main body structure is fixedly connected between the two buttresses. According to the river-crossing pipeline structure, the rigidity and the stability of the river-crossing pipeline are improved, the application range of the river-crossing pipeline is expanded, the overall sectional area of the structure is increased by utilizing the strength of the river-crossing steel pipe and adding the reinforced profile steel at the bottom, the structural stress in the middle of a large bending moment is reduced, and therefore when the span is large, the rigidity and the stability of the river-crossing pipeline are improved. Structures such as pipe bridges and trusses can be prevented from being used, the steel pipe can still be used for directly crossing the river channel, the application range of the river-crossing pipe bridge is widened, and remarkable economic benefits are achieved.

The utility model provides a kind of rhythmic vibration machine, it is related to fitness equipment technical field, including base, lower support, upper support and pedal, lower support is fixed with base, upper support is fixed with pedal, and lower support is equipped with rhythmic module, including drive motor, pivot and the cam connected with pivot by eccentric bearing, drive motor drives pivot by transmission mechanism, drives cam to make upper support rhythmic up and down;Meanwhile, vibration module is equipped on the side of upper support away from drive motor, for generating high-frequency vibration. By efficiently integrating rhythmic and vibration function in one, compact structure, and the stability of both simultaneous operation is improved by effectively avoiding motion interference with the layout of the two, so that users can simultaneously obtain the dual effect of full-body rhythmic exercise and local muscle deep relaxation.

The utility model relates to the field of agricultural cultivator spare and accessory parts, in particular to a hydraulic shaft of an agricultural subsoiler, which comprises a middle section and a connecting section, one end of the connecting section is coaxially connected to one end of the middle section, the connecting section is used for connecting required parts, and the cross-sectional area of the middle section is larger than that of the connecting section. External force borne by the hydraulic shaft in the working process is mainly tensile force or pressure, and at the moment, tensile and compressive stress borne by all sections, perpendicular to the axis of the hydraulic shaft, of the hydraulic shaft is inversely proportional to the area of the sections. The larger the cross section area of the middle section is, the smaller the tensile and compressive stress is. The larger the cross section area of the middle section made of the same material is, the larger the tensile force or pressure can be borne, the structural strength of the middle section can be improved, the service life of the middle section is prolonged, and then the service life of the whole hydraulic shaft is prolonged.

The invention discloses a trench isolation structure, a preparation method thereof and a semiconductor device, and the preparation method comprises the steps: providing a semiconductor substrate which comprises a trench; at least the interior of the groove is filled with a sacrificial layer, and the filled sacrificial layer exposes a part of height of the side wall of the groove in the depth direction from the port of the groove to the interior of the groove. A first oxidation film layer is at least formed on the side wall of the groove and above the sacrificial layer in the groove, a first part of the first oxidation film layer is formed on the side wall of the groove, and a gap is formed in the first part; the second portion is formed at the bottom of the gap and on the sacrificial layer. Forming a window on the second part, wherein the window exposes part of the sacrificial layer; and removing the sacrificial layer in the groove based on the window. And filling the gap in the first part with a second oxide film layer until the gap is completely filled with the second oxide film layer. Therefore, the preparation process of the trench isolation structure can be simplified, the preparation difficulty and cost can be reduced, and the performance of the semiconductor device can be improved.

The invention discloses a high-temperature and high-pressure floating air-entraining sealing structure, and belongs to the technical field of aero-engine air systems. The structure comprises a combustion chamber casing, an outer culvert casing, an adapter pipe and a bent pipe with a seat, the combustion chamber casing is provided with an air-tight seal floating mechanism, the outer culvert casing is provided with an air exhaust mounting seat, one end of the adapter pipe is in clearance fit with the air-tight seal floating mechanism and is communicated with the interior of a combustion chamber through the air-tight seal floating mechanism, and the other end of the adapter pipe is provided with an air exhaust mounting seat. The other end of the adapter pipe and one end of the bent pipe with the base are jointly installed and fixed to the air exhaust installation base through a plurality of connecting assemblies, and the end, away from the combustion chamber case, of the adapter pipe communicates with the outside through the bent pipe with the base. Sealing is achieved through the internal and external air pressure difference of the combustion chamber cavity and matching of all parts, the sealing performance is good, the service life is prolonged, meanwhile, the structure of the adapter pipe is simplified, and the manufacturing cost of the adapter pipe is reduced. And the adapter pipe is not fixedly connected with the combustion chamber casing, so that the influence of vibration stress on the adapter pipe is reduced.

The present invention discloses a dynamic heat source type omnidirectional micromechanical angular velocity sensor and a processing method thereof. The gyroscope includes a substrate layer, an upper sensitive layer, a lower sensitive layer and a cover plate; an omnidirectional vibrator heater (dynamic heat source) is arranged at the center of the upper sensitive layer, and is suspended at the center of the sensitive layer by eight completely symmetrical semicircular support beams, and a circular intermediate heating cavity is located below; the lower sensitive layer contains eight thermistors distributed in a regular octagon, and a rectangular intermediate detection cavity is located below; the upper sensitive layer and the lower sensitive layer are bonded to form a sensitive layer; the heater is powered by periodic alternating current; a groove is etched on the cover plate, and is sealed and connected to the upper surface of the sensitive layer. The present invention can realize omnidirectional measurement of angular velocity, is not limited by the azimuth angle, has a large range, a small measurement error, a high detection accuracy, and has the characteristics of compact structure, easy intelligence and integration. At the same time, it has extremely low cost, high reliability, and excellent anti-vibration and anti-impact performance.

The invention relates to the technical field of artificially synthesized mordenite, and provides high-crystallinity high-silicon mordenite as well as a preparation method and application thereof. Si / Al in the high-crystallinity high-silicon mordenite is greater than 15, and the relative crystallinity is greater than 75%. Aiming at the technical difficulty that the mordenite is difficult to form a high-silicon framework, after the second silicon source, the structure-directing agent and the solvent are added, the secondary crystallization is performed, so that the framework composition control of the mordenite is realized, and the precise construction of the high-crystallinity high-silicon mordenite is realized; the technical bottleneck that high-silicon mordenite is difficult to directly synthesize by single one-time gel-forming crystallization and the problems of low crystallization activity, poor uniformity and the like under the condition that the alkalinity is too high or too low are solved, the upper limit of a Si / Al specific phase region of artificial in-situ synthesis of mordenite is broken through, crystal parameters are effectively controlled, and the product yield is improved; therefore, the microporous crystallinity of the zeolite is enhanced, the metastable state surface active acid center distribution of the zeolite is greatly optimized, and the zeolite has good aromatic hydrocarbon conversion performance.

The invention relates to the technical field of relays, and particularly discloses a high-load movable contact spring and a push rod type relay comprising the movable contact spring. Wherein the movable contact spring is provided with a contact spring body, and the contact spring body is of an overlapped structure of at least two contact springs in the thickness direction; in the overlapping structure, the springback side reed and the pushing side reed which are adjacently arranged are provided with an elastic gap which is located between the pin connecting position and the pushing connecting position and is of a triangular structure. The pushing side reed forms a bottom edge of the elastic gap; the springback side reeds form two waist edges of the elastic gap; the length of the bottom edge is larger than that of the two waist edges. According to the invention, the formed push rod type relay can realize high current-carrying performance by basically keeping the original electromagnetic attraction design, the formed push rod type relay can form dimension reduction competition in the market, and the market prospect is good.

The application relates to the technical field of communication equipment installation, and provides a device fixing support and communication equipment, wherein the device fixing support comprises a main fastener, an adapter and a fastener, the main fastener is suitable for being connected with a fixed object, one side of the main fastener is formed with a protruding part along a first direction; the adapter is suitable for being connected with a communication device, one side of the adapter is formed with a recessed part matched with the protruding part; one of the side surfaces of the protruding part and the side surface of the recessed part is provided with a groove, and the other is provided with a boss matched with the groove; the groove is provided with a first penetrating hole, and the boss is provided with a second penetrating hole; and the fastener is penetrated in the first penetrating hole and the second penetrating hole to fix the main fastener and the adapter. The protruding part of the main fastener is tightly matched with the recessed part of the adapter, the connection rigidity is enhanced, the structural stress of the connection position is reduced, the boss and the groove provided on the side matching surface of the main fastener and the adapter are limited and matched, the fastener is matched with the main fastener and the adapter, and the installation is convenient.

The utility model discloses a semiconductor packaging structure, which comprises a horizontally arranged diode chip, an upper electrode electrically connected with the upper surface of the diode chip, a lower electrode electrically connected with the lower surface of the diode chip, and an epoxy packaging body coated on the outer side of the diode chip, the end, connected with the diode chip, of the upper electrode is provided with an upper connecting part horizontally arranged above the diode chip, an upper thinning area is formed below the upper connecting part, and the end, connected with the diode chip, of the lower electrode is provided with a lower connecting part horizontally arranged below the diode chip. A lower thinning area is formed above the lower connecting portion, and the diode chips located in the upper thinning area and the lower thinning area are respectively connected with the upper connecting portion of the upper electrode and the lower connecting portion of the lower electrode in a welding mode through a welding layer. According to the utility model, the packaging volume of the epoxy packaging body can be reduced, the heat dissipation efficiency and the heat dissipation uniformity are improved, and the stability of the performance in the use process can be improved.

The invention relates to the cross technical field of sodium-ion batteries and glass preparation, in particular to a sodium-ion battery negative electrode material and a preparation method thereof, and the sodium-ion battery negative electrode material comprises a current collector and a composite active coating attached to the current collector; the composite active coating is formed by coating and drying slurry, and the slurry comprises a glass material, a conductive material and a binder. According to the invention, the glass material is introduced into the composite active coating, so that the structural stress in the sodion deintercalation process is effectively buffered, and the phase change and structural collapse of the electrode material are inhibited, thereby remarkably improving the cycling stability; meanwhile, the ion diffusion rate and the electron conduction efficiency are enhanced and the rate capability and the capacity performance are improved by a three-dimensional conductive network formed by the glass material, the conductive material and the binder in a synergistic manner, the overall preparation process is simple, the cost is relatively low, and a feasible material solution is provided for high-performance application of the sodium-ion battery in the field of large-scale energy storage.

The buckling beam comprises a buckling beam body, and deformation release areas are arranged at the two ends of the buckling beam body, so that after the buckling beam is fixedly installed on the quasi-zero-stiffness vibration isolator in a connected mode, when a load block is subjected to downward acting force, deformation of the load block is released, and then the load block is released. The buckling beam can be flexibly bent to form an S shape at the positions of the two deformation release areas, so that the structural stress of the buckling beam is small, and the sensitivity of the load block is better when the load block vibrates up and down.

The present invention relates to the technical field of underwater structures, and more specifically, it relates to a deep-water large-angle bare rock cofferdam and a construction method, comprising a cofferdam body. During the construction process, the side of the cofferdam body facing upstream is the upstream side, the side of the cofferdam body facing away from the shore is the back shore side, and the side of the cofferdam body facing the shore is the shore side. A water flow guiding structure is arranged on the upstream side of the cofferdam body, and the water flow guiding structure guides the water flow to the side of the cofferdam body facing the shore. The deep-water large-angle bare rock cofferdam and the construction method of the present invention can guide the water flow flowing to the upstream side of the cofferdam body to the shore side, thereby alleviating the lateral pressure caused by the inclined riverbed, reducing the bearing capacity required for the shore side of the cofferdam body, and avoiding the cofferdam from being easily deformed or displaced.

The invention relates to a method for controlling the integrity of a single crystal of a quadruple guide blade, and belongs to the technical field of precision casting of aviation turbine blades. The casting method of the quadruple single crystal guide blade comprises the processes of ceramic mold core preparation, wax mold module pressing and combination, shell mold preparation, directional solidification, depoling, stress relief annealing, vacuum heat treatment, single crystal integrity detection and the like. The wax mold module comprises a pouring system wax mold, a blade wax mold, a transition section and a spiral crystal selector; the blade wax mold is provided with a blind riser which is arranged on the large margin plate and is flush with the end face of the exhaust edge of the blade body extension section on the outer side of the large margin plate; one end of the blade wax mold is connected with the plate-shaped ingate, the other end is connected with the transition section, and the transition section is connected with the bottom plate through the spiral crystal selector. According to the method for controlling the integrity of the casting blade single crystals, the metallurgical defects of mixed crystals, recrystallization and the like of the quadruple integral casting single crystal turbine guide blade can be effectively reduced, the problem of the integrity of the blade single crystals is solved, and the qualified rate of the quadruple single crystal guide blade is increased.

The present application belongs to the technical field of planetary gear transmission mechanism parts, and particularly relates to a planetary gear carrier, which comprises a front planetary carrier body and a rear planetary carrier body arranged in two parts, and a connecting column is arranged on the front planetary carrier body, the coaxial bidirectional transmission structure effectively increases the meshing length and the bearing area, the load is uniformly distributed, and the transmission stiffness and stability are significantly improved; the radial inner and outer double-side island-shaped reinforcing structure is adopted on the two sides of the groove in the circumferential direction, the stress concentration area is precisely reinforced, and the connection strength and the fatigue resistance of the brazing position are greatly improved; the through dynamic balance hole group realizes overall double-face dynamic balance, overcomes the technical prejudice in the industry that low speed does not need dynamic balance, and obviously reduces the vibration, noise and gear impact; the flow guide structure and the labyrinth type fitting structure improve the flow and filling effect of the brazing filler metal, and improve the uniformity and reliability of the weld; the heat dissipation gap improves the heat dissipation capacity, reduces the structural stress under high temperature working conditions, and prolongs the overall service life.

The invention belongs to the technical field of buoyancy material manufacturing, and particularly relates to a low-stress bonding method for light-weight solid buoyancy material components, which comprises the following steps: preparing blocky solid buoyancy materials with the same height; splicing and bonding the block-shaped solid buoyancy material along a straight line to prepare a strip-shaped solid buoyancy material; splicing and bonding the strip-shaped solid buoyancy material along a plane to prepare a layered solid buoyancy material; bonding belts are arranged at the two ends of the layered solid buoyancy material in the length direction or the two ends of the layered solid buoyancy material in the width direction correspondingly, the layered solid buoyancy material is spliced and bonded up and down, and a lightweight solid buoyancy material component blank is prepared; the bonding length of the bonding belt is equal to the length or width of the layered solid buoyancy material, and the bonding width is equal to the height of the blocky solid buoyancy material. According to the low-stress bonding method, the process is improved by changing the bonding mode, reducing the bonding area and the like, and the problem that a lightweight solid buoyancy material component cracks in a high-water-pressure testing environment is effectively solved.

The utility model relates to a floating type offshore photovoltaic power generation platform which comprises a photovoltaic panel and further comprises an upper layer frame, a plurality of upper layer supporting rods, a plurality of main stand columns, a plurality of secondary stand columns, a plurality of inclined supporting rods and a plurality of lower layer supporting rods. A part of the upper-layer supporting rods are connected end to end to form a first polygonal structure in a surrounding mode, one end of each upper-layer supporting rod in the other upper-layer supporting rods is connected to one corner of the first polygonal structure, and the other ends of all the upper-layer supporting rods in the other upper-layer supporting rods are connected together and located in the center of the first polygonal structure. The second polygonal structures and the first polygonal structures are correspondingly arranged at intervals in the vertical direction, one end of each inclined supporting rod in the multiple inclined supporting rods is connected to the end of one main stand column, and the other end of each inclined supporting rod in the multiple inclined supporting rods is connected to the end, diagonally arranged with the end of the main stand column, of the corresponding auxiliary stand column. The problems that in the prior art, the structural strength and stability are difficult to maintain when sea surface stormy waves are faced, and the movement performance is poor are solved.

This invention provides a hydrothermal-synthesized, long-term, anti-degradation, low-density cementing material for ultra-high temperature environments and its preparation method. This cementing material incorporates calcium oxide, silicon oxide, and various calcium aluminates into its formulation. The hydration reaction of these raw materials at high temperatures generates a substance with a certain strength. Simultaneously, under high-temperature conditions, the three types of calcium aluminates in a specific ratio can react with calcium oxide and silicon oxide to form hydrated calcium aluminosilicate (C-A-S-H), which exhibits long-term high-temperature resistance, thus ensuring the long-term high-temperature performance of the cementing material. Through this method, a cementing material that does not experience strength degradation under long-term high-temperature conditions (90 days of curing at 240℃) is obtained, effectively solving the problem of strength degradation at high temperatures in existing cement slurries used in deep wells.

The invention discloses a high-nickel ternary positive electrode material and a preparation method and application thereof, and belongs to the technical field of batteries and battery materials, a coating layer is formed on the surface of the high-nickel ternary positive electrode material through silicon dioxide, direct contact between an electrode material and an electrolyte is effectively isolated, and then through a thiol-ene click reaction, the high-nickel ternary positive electrode material is obtained. The graphene / titanium dioxide core-shell whisker is used as a reinforcing phase to coat the surface of the silicon dioxide coating layer again, so that the interface bonding force between the two coating layers is increased, the volume change caused by lithium ion intercalation and deintercalation can be coped, the structural stability of the material is kept, and the specific discharge capacity, the capacity retention rate and the cycling stability are favorably improved; according to the graphene / titanium dioxide core-shell whisker, titanium dioxide containing whiskers is synthesized on the surface of graphene containing a lamellar structure through microwave heating and serves as a core layer, then a shell-structure lanthanum metal framework is synthesized in a hydro-thermal mode, and the interface bonding force can be further improved through the mechanical interlocking effect.

The invention provides a phased-array antenna grating lobe suppression device and a use method thereof, and relates to the technical field of antennas. The phased-array antenna grating lobe suppression device provided by the invention comprises a grating lobe suppression body, and the grating lobe suppression body comprises a grid net which is used for covering gaps between antenna units of an added antenna array surface; the conductor circuit is arranged in the grid net, and the width of the conductor circuit is larger than the gap between the antenna units; and the plurality of avoiding holes are formed in the surface of the grid net in a penetrating manner and correspond to the positions of the radiation units. According to the invention, the grid net and the plurality of avoiding holes are respectively matched with the gaps in the periodically arranged added antenna array surface and the positions of the antenna units, and the conductor circuit and the grid net block the gaps between the antenna units, so that the suppression of parasitic radiation is realized, and the influence of the gaps between the antenna units on the radiation performance of the original radiation unit is reduced.

The invention relates to the technical field of optical cables, in particular to a water drop protection type anti-aging optical cable which improves the toughness of the optical cable, reduces the possibility that the optical cable is damaged by a sharp structure, reduces wind resistance and improves the tensile strength of the optical cable. Comprising a suspension wire, the bottom of the suspension wire is connected with an inverted-V-shaped outer sheath through a suspension neck, the outer sheath is provided with an electric unit, and the middle part of the outer sheath is provided with an optical unit.

The invention relates to an unmanned aerial vehicle route height adjusting method and device and electronic equipment, relates to the field of unmanned aerial vehicles, and solves the technical problem of flight danger caused by an unreasonable flight height planning value in an existing unmanned aerial vehicle route. The method comprises the following steps: determining whether to sample on a leg and the position of each sampling point on the leg according to latitude and longitude values of two end points of any leg in an unmanned aerial vehicle route; according to the latitude and longitude values of the two end points and the position of each sampling point, the elevation value is obtained; in response to the situation that the difference between the elevation value of any end point or any sampling point and the initial height value of the elevation value does not meet the safety threshold range, increasing the initial height value to enable the difference between the elevation value and the initial height value of the elevation value to meet the safety threshold range; and in response to the fact that the number of the sampling points with the increased initial height values is larger than or equal to a preset threshold value, the sampling points with the increased initial height values are numbered according to the flight direction of the unmanned aerial vehicle, and the current height is determined according to the numbers.

This utility model relates to the field of monitoring equipment, specifically disclosing an online monitoring and maintenance device. It includes a mounting base, a protective cover, a support plate, snap-fit ​​blocks, and a monitoring body. The monitoring body is rotatably mounted on the lower end of the mounting base via a rotating shaft and bearing, allowing for pitch rotation. The protective cover covers the monitoring body and is detachably connected to the mounting base via a snap-fit ​​structure. The protective cover has snap-fit ​​parts with snap-fit ​​grooves on both sides. Support plates are symmetrically arranged on both sides of the lower end of the mounting base. The snap-fit ​​blocks are slidably mounted on the mounting base's slide rails and snap-fit ​​into the snap-fit ​​grooves. The support plate has a snap-fit ​​mechanism for driving the snap-fit ​​blocks, and the mounting base has a linkage mechanism for driving the snap-fit ​​blocks. The snap-fit ​​mechanism includes a push plate, a sliding rod, and a pre-compressed elastic element. The linkage mechanism includes a rotating disk, a connecting rod, and a push rod, which can synchronously drive two snap-fit ​​blocks. This device is easy to assemble and disassemble, reliably connected, precisely adjustable, and offers excellent protection, making it suitable for complex environments.