38results about How to "Guaranteed structural reliability" patented technology

The utility model relates to the technical field of positioning electric cylinders, in particular to a miniature electric cylinder with a positioning function and suitable for high and low temperatures, which comprises a machine body, a speed reducer is mounted on the inner wall of a cavity, a driving gear is fixedly connected to the outer wall of the speed reducer, a driven gear is meshed with the outer wall of the driving gear, and a bearing is fixedly connected to the outer wall of the driven gear. The outer wall of the bearing is fixedly connected with a main shaft, the top end of the machine body is fixedly provided with a limiting switch, through the limiting switch at the top end of the machine body, the electric cylinder is provided with a positive limiting switch and a negative limiting switch, the movement range of the electric cylinder can be accurately controlled under the DC5V driving voltage, the rated thrust of the electric cylinder reaches 50N, and the thrust requirement in a common working scene can be met; the rated pushing speed of the electric cylinder is stable 4 mm / s, the stability of linear motion is ensured, the effective stroke is set to be 20 mm, displacement control is more accurate, in addition, the electric cylinder can bear radial force as high as 20 N, and therefore the structural stability and reliability in the running process are ensured.

This invention belongs to the field of optical component mounting technology, specifically a real-time coaxial optical coupling loss detection and alignment system for prisms and lens arrays. It includes an automatic loading and unloading module for automatically loading the substrate, prisms, and lens arrays, and automatically sorting and unloading qualified and unqualified products. By adopting a technical solution that uses the real-time coaxial optical coupling loss detection value as the sole criterion for final alignment of the lens array, combined with a graded alignment strategy of visual coarse alignment and coaxial optical fine alignment, it solves the common industry pain point of existing pure visual alignment and passive alignment technologies that separate physical dimensional accuracy from optical performance. This results in the inability to compensate for manufacturing errors such as uneven refractive index and surface flatness deviations within optical components, leading to substandard optical performance despite meeting physical accuracy standards and low yield rates in mass production. By using dimensional and angular tolerances only as auxiliary constraints, it directly locks the global minimum coupling loss point, improving the consistency and stability of the product's optical performance.

The application discloses a kind of gas diffusion layer and its preparation method and application, it is related to fuel cell technical field.The gas diffusion layer includes conductive substrate layer and hydrophobic filling layer, multiple channels are opened in conductive substrate layer and pass through its thickness, multiple channels include first channel and second channel different in aperture, and the pore wall surface of channel has hydrophilicity, hydrophobic filling layer is filled in channel and covers the surface of one side of conductive substrate layer, and hydrophobic filling layer has hydrophobicity, wherein, the inner wall surface of channel and the gap between hydrophobic filling layer filled in channel are formed.The present application utilizes the wettability gradient formed by hydrophilic pore wall and hydrophobic filling layer, combines interface gap and multi-level pore array structure, realizes the spatial complementation of liquid water directional discharge and reaction gas efficient permeation, can solve the performance attenuation problem caused by fuel cell cathode waterlogging under high current density, is conducive to improving water management capability and battery output performance.

This invention discloses an installation and construction method for a lattice-type frame structure of a 750kV substation, belonging to the field of substation civil construction technology. The method includes: assembling the frame columns on the ground with the ladder-like structure as the bottom surface to prevent misalignment; using a dual-crane system to flip the entire frame so that the ladder-like surface faces upwards; lifting using a main and auxiliary crane lifting method, with the main crane supporting multiple lifting points via a specially designed spreader beam for load-bearing distribution; after vertical lifting, the main crane guides the frame into the foundation socket, and fine-tunes the positioning using mechanical jacking tools and a three-dimensional orthogonal measurement and control system; finally, multi-stage grouting and anchoring are performed. This invention significantly reduces the risk of deformation during the lifting of ultra-large frames, eliminates the safety hazards of installing ladder bolts at heights, improves the accuracy of positioning and correction, and enhances construction efficiency. It is suitable for the safe and efficient assembly of various heavy-duty lattice frames.

The invention discloses a weldable metal ceramic composite pipe and a preparation process thereof, and relates to the technical field of pipelines, the weldable metal ceramic composite pipe comprises a steel pipe main body, the pipe wall of the steel pipe main body is axially provided with a through seam, and the seam is formed by welding after cutting; the ceramic lining layers are coaxially arranged in the steel pipe body, and each ceramic lining layer is of a cylindrical structure formed by splicing a plurality of ceramic pieces through a daub layer in an adhesive mode; the flat steel is welded to the outer pipe wall of the steel pipe body and covers the joint in the axial direction; and the hoop is arranged between the two steel pipe main bodies, and the hoop is welded to the outer pipe walls of the two steel pipe main bodies correspondingly. According to the invention, the impact resistance and thermal shock resistance of the ceramic lining are obviously improved through the design of the prestressed structure, and the problem that a traditional ceramic layer is easy to crack and peel off is effectively solved; and meanwhile, field direct fusion welding connection of the composite pipe is achieved, tedious flange installation is replaced, and the construction efficiency and the connection reliability are greatly improved.

The invention discloses an elastomer structure for a high-rotating-speed flange type torque sensor rotor and a design method. The elastomer structure comprises a left flange plate, a right flange plate and a middle main body section, wherein the left flange plate and the right flange plate are integrally formed; the middle main body section is located between the two flange plates; the middle main body section is sequentially provided with a strain measuring area, an induction clamping ring mounting area and a rotating speed measuring area along the axial direction; a circle of annular groove is formed in the induction clamping ring installation area, a non-metal induction clamping ring with the inverted-T-shaped section is installed in the annular groove in a matched mode, a concave aluminum alloy pressing ring is arranged on the left side of the induction clamping ring, and the pressing ring and the elastic body are fastened through a bolt to form a concave-convex-concave embedded type fixing structure. Through the structural design of the groove, the contact area of the clamping ring and the elastic body is increased, the limit stress of the clamping ring is effectively reduced, and the clamping ring adapts to the high-rotating-speed working condition.

The utility model relates to tractor accessory technical field, especially a tractor suspension limiting device, solved the problem that the prior art device exists angle adjustment is restricted, the difficult problem of installation, including two hinge folders, two hinge folders are connected through interval adjusting assembly, hinge folder includes first hinging seat and second hinging seat, first hinging seat is hinged and is connected with second hinging seat, and the fixedly connected with mounting panel on first hinging seat, second hinging seat is connected with interval adjusting assembly, first hinging seat is rotatably connected with first locking piece, and second hinging seat is rotatably connected with second locking piece, and first locking piece and second locking piece are connected through locking bolt. Advantageous effects are: through setting first hinging seat and the hinged connection of second hinging seat, make interval adjusting assembly swing relative to mounting panel, realized the flexible adjustment of angle, effectively solved the difficult problem of installation that the adjusting screw cannot swing relative to regulator in prior art.

This utility model belongs to the field of automotive filter technology, and in particular to an easy-to-replace automotive filter assembly. A sealing plate for supporting and sealing the lower part of the filter element is bonded to the lower inner surface of the filter housing. An elastic sealing element for elastic sealing the upper part of the filter element is bonded to the upper inner surface of the filter housing. An integrally formed mounting ring is formed at the open end of the filter housing. Iron pieces are bonded to the four corners of the mounting ring, and a sealing cover is provided on the surface of the mounting ring. By providing a sealing plate on the lower inner surface of the filter housing, a stable lower support is provided for the filter element, while simultaneously achieving a tight seal between the bottom of the filter element and the housing. The elastic sealing element on the upper inner surface of the housing forms an elastic pressure-limiting seal on the upper part of the filter element. This coordinated sealing structure effectively compensates for assembly dimensional deviations and avoids the sealing problems that easily occur in traditional single-seal methods.

This utility model discloses a sound absorption and noise reduction structure for a vacuum cleaner, including an airflow channel pipe. One end of the airflow channel pipe is snapped into a vacuum cleaner connector. Dust chamber shell one and dust chamber shell two are respectively attached to both sides of the airflow channel pipe. The mating surfaces of dust chamber shell one and dust chamber shell two are snapped into each other, and a handle ring is snapped into the outer side of the dust chamber shell one near the vacuum cleaner connector end, and a limit ring is snapped into the outer side of the dust chamber shell one away from the handle ring end. A dust chamber shell cover is snapped into the top of dust chamber shell one and dust chamber shell two. Heat dissipation holes are opened on the bottom side of each dust chamber shell one and dust chamber shell two, and a motor assembly is fixedly connected inside the corresponding heat dissipation holes. Through the integrated design of airflow channel optimization, vibration isolation, composite noise reduction and efficient heat dissipation, the acoustic performance of the vacuum cleaner is improved while ensuring heat dissipation efficiency and structural reliability, achieving a comprehensive technical effect of low noise and high stability.

The application provides a new type of gasket material for intelligent self-lubricating joint bearings and a preparation method and application thereof, and belongs to the technical field of composite materials, self-lubrication and intelligent monitoring, in particular, the preparation method of the new type of gasket material for intelligent self-lubricating joint bearings comprises the following steps: S1: preparing a conductive synergistic material; S2: preparing a modified performance reinforcing material; S3: preparing a phenolic resin diluent; S4: preparing a conductive modified phenolic resin adhesive film; S5: preparing an insulating modified phenolic resin adhesive film; S6: preparing a pretreated fabric; and S7: preparing a new type of gasket material. The new type of gasket material for intelligent self-lubricating joint bearings prepared by the above method can realize the integration of "material-function", intelligently monitor the wear state of the bearing according to the step change of the electrical conductivity, has the advantages of excellent friction-reducing and wear-resistant performance and high sensitivity, can significantly simplify the structure of the bearing system and reduce the maintenance cost, and is suitable for the fields of aerospace and the like.

The utility model belongs to sludge dewatering technical field, concretely relates to a filter plate for diaphragm filter press, including board body, graphene heating piece, heat conduction cover plate and annular frame board, the utility model discloses a graphene heating piece is integrated to the filter plate inside, can utilize its planar heating, high thermal efficiency, the excellent characteristic of rapid and uniform heating, can efficiently and stably pass through heat conduction cover plate and transmit heat to entire filter chamber, and the filter cake is heated quickly and uniformly, thereby the stable structure of bound water in sludge is efficiently destroyed, and the dewatering efficiency and dryness are improved significantly, still through multistage embedded design, while realizing efficient hot-pressing synergic dewatering, the stable sealing of heating system and the structural reliability of filter plate whole are ensured.

The utility model discloses an assembled power distribution room flood prevention baffle belongs to flood prevention baffle technical field. This kind of assembled power distribution room flood prevention baffle, including flood control mechanism, flood control mechanism includes bottom plate, a plurality of connecting plates and top plate, the upper end of bottom plate and the top end of a plurality of connecting plate all are established with dovetail groove, the bottom of a plurality of connecting plate and top plate all are installed with dovetail block, the sliding insertion between dovetail block and dovetail groove, the both sides of dovetail groove all are embedded and install sealing strip, the both sides of dovetail block all are established with sealing groove, sealing groove and sealing strip joint, the bottom of dovetail groove is established with a plurality of movable cavities at equal intervals, the inside of movable cavity all slides and inserts and is equipped with the resistance rod, the top of resistance rod all is installed with rubber pad, the bottom of rubber pad and the bottom of dovetail block abut, the utility model discloses can effectively improve the practicality of assembled power distribution room flood prevention baffle, has higher practical value.

This application discloses a pair of pliers that is easy to assemble and disassemble, including a left and a right pair of pliers arranged in a cross configuration. The left pliers have a left plier shaft portion, and the right pliers have a right plier shaft portion. The left plier shaft portion includes a left connecting seat with a connecting groove. A connecting sleeve with internal threads is concentrically arranged in the connecting groove. The right plier shaft portion includes a right connecting seat with a gasket mounting groove and a connecting sleeve on opposite sides. A connecting hole is formed at the bottom of the gasket mounting groove. During assembly, the connecting sleeve is inserted into the annular mounting groove outside the connecting sleeve, and the bolt passes through the gasket and the connecting hole and is screwed into the internal thread of the connecting sleeve. Therefore, the pliers provided by this application can be assembled and disassembled using only a screwdriver. Its double-sleeve structure allows for both sliding rotation and adjustment of tightness at any time by tightening the bolt. The two pliers can be separated by removing the bolt, making it convenient to clean the dirt inside the pliers. The assembly and maintenance are simple, and the gasket forms an end face seal to prevent lubricating oil from seeping out, thus avoiding dirty hands and clothes.

The utility model provides an anti-hail net supporting structure, which combines independent supporting units into a whole through structural design, so that the stability and durability of an anti-hail net are effectively improved, and meanwhile, a user can maintain, assemble and disassemble the anti-hail net by himself / herself without the need of a professional to go to the door, and belongs to the technical field of agricultural protection facilities. Comprising a supporting frame and a ground anchor fastening structure, the supporting frame comprises a transverse pull rod and a plurality of center rods, and the center rods are arranged at equal intervals in the length direction of the transverse pull rod; a connecting pipe is arranged between every two adjacent center rods. A fixing block is pre-embedded in the bottom end of the center rod; the ground anchor fastening structure comprises a vertical rotating rod, and a first connecting block and a second connecting block are arranged on the rotating rod; the lower end of the expansion anchor is hinged to the second connecting block, a connecting rod is arranged between the expansion anchor and the first connecting block, one end of the connecting rod is hinged to the first connecting block, and the other end of the connecting rod is hinged to the expansion anchor; the ground anchor fastening structure is connected with the supporting frame through a tensioning rope.

The utility model discloses a kind of adjustable multifunctional indoor partition devices, including two groups of box, two groups of box are attached, and two groups of box one end are attached and placed with shell.The utility model is slid with slide rail one, is slid and is connected with wheel body and slide rail two, realize the movement of box and shell.In combined state, it can be used as indoor partition to divide space, after separation, box top surface can act as bar counter, shell is removed, does not occupy extra space, to a certain extent, it is adapted to guest bedroom separation, temporary bar counter and a variety of use scenarios, to a certain extent, it improves space utilization rate.Shell is opened and placed groove can be used as display area to display ornaments or books, and multiple groups of drawers equipped with box are suitable for storing small articles, and special cavity can accommodate larger articles.Diversified storage design makes partition device have practical storage function, avoids space messy, and to a certain extent, it is widely applicable.

The utility model discloses a new energy battery cover plate riveting die, including upper mounting panel and lower mounting panel, the lower mounting panel top is provided with the lower form plate, and the lower form plate top is provided with the carrier, and the carrier top is provided with the recess, is used for placing the cover plate body of corresponding shape specification, the upper mounting panel bottom is provided with the upper backing pad, and the upper backing pad bottom is provided with the upper clamping plate, and the both ends of upper clamping plate are slidably connected with the stop plate through the equal -height sleeve assembly component. The utility model discloses riveting process connection fixed cover plate body, pole, sealing element, metal fixed block, plastic fixed part, lower plastic support, guaranteeing the structure reliability, simplifying new energy battery cover plate assembly process flow, reducing assembly process difficulty, reducing the amount of use of key material, help to improve the assembly efficiency of top cap and reduce production cost, improve new energy battery energy density and safety, compared with general riveting technology, riveting precision is higher, and product yield is higher.

This utility model relates to the field of structural modification of buildings, and discloses a modification structure based on the removal of side columns at the side span of a steel structure platform. The structure includes a side steel column to be demolished, a new steel column, a new crossbeam, a first diagonal brace, a second diagonal brace, and multiple tie rods. The new steel column is positioned opposite the side steel column to be demolished, with its bottom fixed to the ground and its top extending to the platform layer above the side steel column to be demolished. The new steel column is fixedly connected to each platform layer via a new crossbeam. A first diagonal brace is installed between the existing side steel column on the layer above the side steel column to be demolished and the two new crossbeams of the new steel column. Two second diagonal braces in a figure-eight shape are also installed on the right side of the existing side steel column connected to the first diagonal brace and between it and the adjacent existing steel column. Multiple tie rods are installed between the new steel column and the existing side steel columns between each platform layer. This utility model's modification method is simple to construct, does not affect normal production, and does not require complex stress analysis.

According to the point constraint automatic assembly mold for the nuclear fuel assembly grillwork, a stable installation foundation is provided for a clamp body through a first space in a mold frame, and the clamp body is provided with a plurality of first channels and second channels which are arranged in the first horizontal direction and the second horizontal direction in a crossed mode; the first strip and the second strip are contained in the first strip and the second strip respectively; a plurality of mounting cavities are formed in one side of each first channel, pressing structures are arranged in the mounting cavities in a one-to-one correspondence manner, and uniform pressing force can be applied to the first strip from the side direction under the synergistic effect of a driving structure; the structure fully adapts to the material characteristics of thin wall and weak rigidity of the nuclear fuel grillwork strip, not only effectively avoids the problems of strip indentation, scratch and deformation easily caused by a traditional rigid clamp, but also remarkably reduces the introduction of additional stress in the assembly process, thereby preventing the structure instability of the grillwork caused by stress release in the follow-up use, and improving the service life of the nuclear fuel grillwork. And the assembly quality, the structural integrity and the long-term service reliability of the nuclear fuel grillwork are comprehensively guaranteed.

This utility model relates to the field of conference table technology. It discloses a paperless conference table, comprising a table body, a tabletop on top of the table body, a through-hole for cable management below the tabletop, a hollow cavity below the tabletop, at least four through-holes in the tabletop, and at least four table legs below the table body; a secondary table, positioned above the table body, comprising a secondary tabletop and at least four lifting rods positioned below the secondary tabletop, the lifting rods extending through the through-holes into the cavity of the table body; and a drive assembly, comprising a drive component and drive rods, with an abutment plate at one end of each lifting rod connected to the at least four lifting rods. This utility model conference table offers multiple advantages: the secondary table achieves flexible height adjustment through the drive assembly and lifting rods, and after being embedded in the fixing groove, it forms a uniform plane with the main tabletop, balancing flexibility and stability; the secondary table features a sliding groove with detachable storage components, achieving concealed storage through T-slots, and integrating cables to keep the desktop tidy.

The utility model discloses a kind of scooters equipped with light strip, including the slide of below and the vertical rod of the front side of the slide, the slide downside and the vertical rod downside are equipped with driving wheel, the vertical rod is equipped with the light emitting component along its length direction and the vertical rod axial direction same direction, the light emitting component includes the front baffle of by light strip cover composition, light emitting light strip and back baffle, the vertical rod is in and is equipped with the waist type hole for being embedded with the light strip cover, the back baffle is along radial convex and is in close contact with the vertical rod inner wall and the light emitting component is tightly supported in the vertical rod in.The utility model has the advantages that the structural reliability and maintainability of light emitting light strip can be guaranteed.

This utility model relates to the field of lower chord pipe technology and discloses a lower chord pipe fixing device, including a lower chord pipe fixing frame. The top of the lower chord pipe fixing frame is fixedly connected to a first steel cable ring, and a fixing steel wire is movably sleeved inside the first steel cable ring. A drainage slot is opened at the top of the lower chord pipe fixing frame, and a lower chord pipe fixing ring is fixedly connected to the bottom of the drainage slot. The lower chord pipe is movably sleeved inside the lower chord pipe fixing ring, and a fixing connecting frame is fixedly connected to the top of the lower chord pipe fixing frame. This utility model uses a drainage slot opened on the outside of the fixing frame at an inclined angle of 15° to quickly drain rainwater or condensate accumulated at the top, preventing water stains from forming liquid at the connection between the fixing frame and the lower chord pipe. This reduces the corrosion rate of metal parts, ensures the long-term stable fitting accuracy of the lower chord pipe fixing ring and the lower chord pipe, avoids loosening or jamming caused by corrosion, and further ensures the structural reliability of the equipment.

The utility model belongs to the technical field of coupling connecting structure, concretely relates to a connecting structure of coupling, including connecting axle and connecting sleeve axle, connecting axle and connecting sleeve axle are connected through the connecting assembly, the connecting assembly includes the locating axle, the outer wall of locating axle is rotatably connected with the rotating part, the outer wall of rotating part is fixedly connected with the screw rod. The connecting structure of coupling through the use of connecting assembly, the cooperation of locating axle, rotating part and screw rod, realize the quick butt joint of coupling and universal shaft, when installing, the accurate occlusion of positioning convex and positioning groove ensures that the connecting axle and connecting sleeve axle are primarily positioned, the screw rod can rotate around the locating axle, smoothly passes through the straight slot of connecting sleeve axle, need not multiple step-by-step tightening, only need to rotate the screw rod 90 degrees and remove the straight slot, and then rotate the nut to lock, which saves the cumbersome steps of traditional circle-by-circle adhesion, greatly shortens the replacement time and reduces the labor intensity.

This invention relates to the field of smoothie machines and discloses an evaporator with a high-efficiency refrigeration chamber inside the smoothie machine. The evaporator includes an inner liner and a heat-conducting cylinder. The cylinder is fitted onto the outer surface of the inner liner. The outer surface of the inner liner has a threaded groove surrounding it, and the bottom center of the threaded groove is raised, dividing the groove into two interconnected recesses. One recess is filled with a thermoplastic welded body, which connects the inner liner and the cylinder. The welded body, in conjunction with the inner liner and the cylinder, encloses the other recess to form a channel for filling refrigerant. Since the refrigerant channel is directly formed by the recesses of the inner liner and the cylinder, the smaller recess restricts the flow range of the solder wire, preventing overflow and contamination of the refrigerant channel. The larger recess increases the contact area between the refrigerant and the cylinder, eliminating the gap problem of traditional flat pipes and improving heat exchange efficiency.

The application discloses a boehmite-coated diaphragm and a preparation process thereof in the field of lithium ion battery diaphragms, and the diaphragm raw materials comprise ultrapure water, a dispersing agent, boehmite, a thickening agent, butadiene styrene rubber, lithium acrylate, a wetting agent, a fluorine-siloxane-sulfonic acid group copolymer and a five-arm polyamide-polyphosphate star copolymer. The fluorine-siloxane-sulfonic acid group copolymer is prepared by polymerization of multi-monomers such as trifluoroethyl methacrylate, gamma-(methacryloyloxy) propyl trimethoxysilane and 2-acrylamido-2-methylpropane sulfonic acid. During preparation, the boehmite is mixed and ground with the dispersing agent, the thickening agent and the like to form a slurry, two kinds of modified copolymers and other functional components are added to adjust the performance, and after coating, drying and rolling, the coated diaphragm is formed. The synergistic effect of the two kinds of copolymers significantly improves the thermal stability, electrolyte wettability and interface bonding force of the diaphragm with the base film, effectively solves the comprehensive performance bottleneck of the traditional diaphragm, and is suitable for the field of high-performance lithium ion batteries.

The invention relates to the technical field of aerospace transportation, in particular to a vertical take-off and landing single-stage injection repeatable heaven and earth back-and-forth carrying method which comprises the following steps: preparing for vertical boosting launching, and simultaneously finishing all preparations before rocket launching; the vertical boosting launching device releases stored energy and boosts the rocket to accelerate; after boosting launching is completed, the rocket engine is ignited to take off and leave the boosting device; the rocket continuously accelerates to the orbit injection speed and then enters a preset orbit; the rocket is adjusted to be in a tail windward configuration needed by reentry, and the rocket is decelerated to enter a reentry window; a rocket enters the atmosphere with the tail nozzle taper plug outsole as a windward side, and the thermal protection capacity of the taper plug outsole is enhanced through a regeneration cooling structure in the taper plug outsole structure. And the rocket vertically lands to the original boosting launching rack and waits for a re-launching task at the original position. According to the invention, by constructing an integrated vertical take-off and landing, single-stage orbit injection, orbit reentry and in-situ recovery process, high-frequency, low-cost and flight-based operation of a sky-ground back-and-forth carrying task is realized.

The application relates to the technical field of radio frequency microwave transmission lines, in particular to a radio frequency coaxial cable with high temperature phase stability and low loss and a preparation method thereof, which comprises an inner conductor, a dielectric body, an outer conductor, an intermediate body, an outer shielding body and a sheath; the cross section of the dielectric body is in lotus core structure, the lotus core structure comprises an inner conductor wrapping layer, an outer conductor supporting layer concentrically arranged outside the inner conductor wrapping layer, and a plurality of reinforcing ribs are arranged at equal angles along the center of the inner conductor wrapping layer and the outer conductor supporting layer; and the reinforcing ribs, the inner conductor wrapping layer and the outer conductor supporting layer form fan-shaped through holes therebetween. The application solves the problem that the phase stability, transmission loss and mechanical phase of the radio frequency cable in the prior art cannot be considered simultaneously.