88results about How to "Guaranteed structural reliability" patented technology

The invention discloses a basement outer wall post-cast strip structure and a construction method, and relates to the technical field of constructional engineering.The basement outer wall post-cast strip structure comprises a post-cast strip body arranged on a building outer wall and two pre-embedded steel plates laid on the side wall of the post-cast strip body, and the two pre-embedded steel plates are arranged on the two sides of the post-cast strip body respectively; a rubber waterstop is arranged at the joint position of the two embedded steel plates, and the rubber waterstop is fixedly connected with the embedded steel plates on the two sides respectively. On the premise of meeting the basic functions of the post-cast strip main body, the anti-seepage performance of the post-cast strip main body part is enhanced, the water seepage risk is effectively reduced, the service life of a building is prolonged, and the safety of the building is improved.

The invention belongs to the technical field of steelmaking equipment, and discloses a novel steel wire rope self-lubricating device, a using method and application. The centering device can be coaxially and detachably connected with a water outlet of a continuous casting tundish and a water inlet of a crystallizer, and the device can be detachably connected with a steel wire rope. The device can be detachably connected with the steel wire rope, is convenient to mount and dismount, and is suitable for different working environments and steel wire rope specifications. Due to the detachable connection design of the supporting frame and the mandrel and the coaxial connection of the steel wire rope frame and the mandrel, the structural stability and reliability of the device are guaranteed. According to the method, the flow speed of the oil dripping needle tube and the falling position of oil drops can be controlled by adjusting the oil pressure and the maximum diameter between the oil leakage nozzle and the steel wire rope, and waste and pollution are avoided while the lubricating effect is ensured.

The utility model provides a battery cell cover plate assembly, a battery cell, a battery pack and a vehicle, and relates to the technical field of power batteries. The battery cell cover plate assembly comprises a cover plate body, a fixing piece, a first insulating piece and a first heat insulation piece, the first insulating piece is arranged between the cover plate body and the fixing piece, and the first heat insulation piece is arranged between the fixing piece and the first insulating piece. Due to the existence of the first heat insulation part, heat generated by the fixing part due to welding is almost not transferred to the first insulation part through the first heat insulation part, so that the condition that the first insulation part is not subjected to hot melting, deformation and the like can be ensured, and the structural reliability of the battery cell cover plate assembly and even the battery cell is ensured; and the insulation effectiveness of the first insulating part is also ensured, and the qualified rate of battery cell products and even modules is finally improved.

The invention belongs to the technical field of design of flame stabilizers in aero-engines, and particularly relates to a double-baffling premixing and pre-evaporation type flame stabilizer which is cooled through outer culvert airflow and premixed and pre-evaporated with fuel oil, the fuel oil and outer culvert airflow can be premixed and pre-evaporated, the oil-gas ratio of the tail edge of the stabilizer can be increased, and the service life of the stabilizer is prolonged. And therefore, the ignition cross flame and stable combustion capacity at the left boundary of the aero-engine can be improved, air film cooling can be formed on the tail plate through the two rows of cooling holes, and the structural reliability at the right boundary of the aero-engine and under the condition that the air inlet temperature is high is guaranteed.

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 utility model discloses a novel bumper structure for a light truck, which comprises a bumper main body, a bumper decorating part, a towing hook cover plate and a mounting point cover plate, matrix type mounting structures are arranged on the lower side, the left side and the right side of the bumper main body, the bumper decorating part is mounted on the lower side of the bumper main body through the matrix type mounting structures, and the towing hook cover plate is mounted on the mounting point cover plate. And the towing hook cover plate and the mounting point cover plate are assembled in the middle of the bumper main body in a clamping manner. According to the bumper installation support, the flexibility of modeling color expression and the reliability of the structure are guaranteed, meanwhile, the use amount of materials can be greatly reduced, the purpose of reducing weight and cost is achieved, meanwhile, the radar cover plate and the installation point cover plate are designed from the aspect of the structure, and the attractiveness of the bumper installation support and the radar is guaranteed.

The central station pipeline installation support comprises pipeline bodies, aluminum profile transverse rods and aluminum profile vertical rods, the pipeline bodies are evenly arranged on the aluminum profile transverse rods, the pipeline bodies are fixed to the aluminum profile transverse rods in a limited mode through fixing pieces, the aluminum profile vertical rods are symmetrically arranged below the two ends of each aluminum profile transverse rod, and bottom supporting feet are arranged at the bottoms of the aluminum profile vertical rods. And fixing holes are formed in the bottom supporting legs. The aluminum profile is adopted as a basic frame of the support, the modularization degree is high, assembling and splicing are convenient, the structural stability and reliability of the whole support are guaranteed, the whole support is balanced and stable in structure, the pipeline bodies are evenly arranged on the support, and therefore the stability and safety of the whole structure are improved, and the service life of the support is prolonged. The design of the bottom supporting legs can also enlarge the contact area between the support and the placing face, the support can be placed more stably and reliably, then the support and the placing face are installed and fixed through the fixing holes, the installation firmness of the support is effectively guaranteed, installation and disassembly are easy and convenient, and actual operation is convenient.

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 belongs to the field of launch boxes, and discloses a reusable launch box fragile cover, a launch box and a method, the reusable launch box fragile cover comprises a cover frame, a fragile cover body and a pressing plate, the fragile cover body is composed of a plurality of springback petal bodies, and the springback petal bodies comprise elastic bodies, skin and light filler, so that the fragile cover can be opened and folded outwards under the action of external force, and the pressing plate is arranged on the fragile cover body. Meanwhile, the springback petal bodies can be recovered, so that the fragile cover can be repeatedly used, and the maintenance cost is greatly reduced; in addition, due to the adoption of the design of the springback petal bodies, the damage to operators, peripheral equipment and the environment caused by splinters generated by opening the cover in a traditional explosion mode is avoided, and the safety is improved. By the adoption of the fragile cover, the problems that an existing fragile cover of the launching box is disposable, maintenance cost is high, and potential safety hazards exist are effectively solved; the fragile cover has the advantages of light weight, water resistance, dust resistance, corrosion resistance and the like; and the strength is high, the response is fast, rebounding can be achieved, and an internal missile can be effectively isolated from the outside when not in use.

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 present invention discloses a medical patch fixing nail that automatically bends and fixes, and belongs to the field of medical devices. The medical patch fixing nail of the present invention comprises an implantation part and a bending part, wherein the bending part is arranged at the tail of the implantation part, and the bending part has at least two bending arms, and the circumferentially adjacent bending arms are connected together toward the center through a connecting structure, and the bending arms have a bending stress that automatically opens and bends outward after the connecting structure is disconnected or detached. With the medical patch fixing nail, during the firing process of the fixing nail, the connecting structure between the adjacent bending arms is disconnected or peeled off by an instrument, so that the bending arms are bent and tightened to tighten the medical patch, so that the medical patch is stably fixed to the human tissue, and the fixing nail of the structure is easy to be fired continuously by an instrument, which solves the problem that the existing medical patch fixing nail is difficult to fire continuously, further facilitates the surgical operation, shortens the surgical time, and breaks the long-term monopoly of foreign countries on medical patch fixing nails.

The sealing structure comprises a movable window frame, the movable window frame is rotationally installed on a window frame on the wall face of a train body through a rotating structure, sealing strips are embedded in the movable window frame in the circumferential direction, the sealing strips located outside the movable window frame extend to form an extrusion part, and the cross section of the extrusion part is of an annular structure. When the movable window frame rotates towards the window frame to a closed state, the annular structure deforms and is pressed between the movable window frame and the window frame; the extrusion part of the sealing strip is arranged to be of the annular structure, the annular structure is not affected by the installation part at the embedded position when being stressed and deformed, and the annular structure is prone to deformation in the stressed state, so that the smoothness when the movable window is closed is effectively guaranteed, the stable and reliable sealing performance after the movable window is closed is effectively guaranteed, and practicability is good.

The present invention relates to a pipeline crossing drilling while drilling gyro shock absorbing device and drilling equipment, and relates to the field of oil drilling. The two ends of the gyro barrel of the pipeline crossing drilling while drilling gyro shock absorbing device are respectively slidably arranged in a main shock absorbing sleeve and an auxiliary shock absorbing sleeve, a first damping group is arranged in the main shock absorbing sleeve, and the two ends are respectively fixedly connected to the main shock absorbing sleeve and the gyro barrel, a second damping group is arranged in the auxiliary shock absorbing sleeve, and the two ends are respectively fixedly connected to the auxiliary shock absorbing sleeve and the gyro barrel, a gyroscope body is fixed in the gyroscope barrel, and the two ends of the sliding limit mechanism are respectively fixedly connected to the outer walls of the main shock absorbing sleeve and the auxiliary shock absorbing sleeve. The drilling equipment comprises a pipeline crossing drilling while drilling gyro shock absorbing device. The main shock absorbing sleeve and the auxiliary shock absorbing sleeve slide in cooperation with the gyro barrel, and the extension and contraction of the damping column consume the energy of vibration, and reduce the up and down vibration of the gyroscope barrel. The sliding limit mechanism ensures the structural reliability, and the sliding limit mechanism can slide synchronously without affecting the shock absorbing effect.

The utility model relates to the field of scooters, in particular to a locking structure for a folding scooter, which comprises a fixed rod and a folding rod, one end of the fixed rod is hinged with one end of the folding rod, the side wall of one end of the fixed rod is provided with a thread locking part, and the side wall of one end of the folding rod is provided with a thread mounting part; the locking device further comprises a locking sleeve, the locking sleeve is arranged on the folding rod in a sleeving mode, and the locking sleeve is connected with the threaded locking part and the threaded mounting part. Compared with a traditional folding locking structure, the locking structure for the folding scooter has the advantages that the number of parts is reduced, operation steps are simplified, and cost is saved while structural reliability is guaranteed.

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.

The invention relates to the technical field of automobile seats, and discloses a quickly resettable automobile seat, comprising: a seat part comprising a base cushion; the backrest is rotatably arranged on the seat part; the connecting rod mechanism is arranged between the base and the cushion and comprises a spring energy storage module, a first connecting rod, a second connecting rod and a third connecting rod; the spring energy storage module comprises an energy storage spring, a mounting bracket, an inner sliding sleeve, a lock catch and a screw rod motor; the energy storage spring is arranged between the mounting bracket and the inner sliding sleeve; when the cushion is in a zero-gravity position state, the energy storage spring is compressed, and the lock catch locks the inner sliding sleeve; when the lock catch is unlocked, the elastic potential energy of the energy storage spring bounces off the inner sliding sleeve and the lead screw motor, so that the seat cushion is quickly reset. The quick resetting device has the advantages that the quick resetting of the automobile seat can be realized without developing a large motor and a small motor, the power supply requirement on the whole automobile is low, the cost can be effectively reduced, and the product upgrading is convenient; and any part is not damaged in the resetting process, and the process is reversible.

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.

The present invention discloses a safety fastener device suitable for fixing an unmanned helicopter cabin, comprising an upper fastener and a lower fastener, an annular locking buckle and a quick-release pin; the upper fastener is fixedly connected to an upper cabin cover, and the lower fastener is fixedly connected to a main cabin; through the combined assembly of several key structures such as the upper fastener and the lower fastener, the annular locking buckle and the quick-release pin, the circumference of the connecting piece and multiple directions can be fastened simultaneously, thereby ensuring the reliability and stability of the connecting piece structure and meeting the design requirements for fixing the unmanned helicopter cabin.

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 present invention discloses a Mecanum wheel with synchronously adjustable angle and a conveying device composed of the same, which relates to the technical field of conveying wheels. A first mounting disk is provided at one end of a base shaft, and a mounting shaft is provided at the other end. A boss is provided at the connection between the mounting shaft and the base shaft; a second mounting disk, a second spring, and a fixing ring are sleeved on the mounting shaft; a strip groove is provided on the outer wall of the mounting shaft; a push rod is provided in the mounting hole of the second mounting disk; rollers are installed between the ball head rods on the mounting disk; an adjustment hole is provided on the second mounting disk; and an arc hole is provided on the first mounting disk. The conveying device includes a rotating shaft and an adjusting rod; the adjusting rod passes through the adjusting hole and the arc hole; the end of the adjusting rod is connected to an adjusting sleeve; the adjusting sleeve is sleeved on the rotating shaft; and the adjusting sleeve is connected to a driving mechanism. The present invention only needs to use one adjusting rod to simultaneously control multiple coaxially mounted Mecanum wheels to synchronously adjust the inclination angles of their rollers, thereby increasing its application range in automatic control of conveying direction platforms.

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 invention discloses a construction method of a large-span protective shed and application of the large-span protective shed in reinforcement cage machining. The construction method comprises the following steps that S10, the mounting positions of stand columns of the protective shed are cleaned and leveled in a construction site; s20, the installation position is positioned according to the snapping line, so that the stand column is accurately installed through the base; s30, a main beam is installed on each column of stand columns so that the main beams can be welded, assembled and arched according to the technological requirements; s40, a plurality of cross beams are welded between the main beams; and S50, color steel tiles are laid on the cross beams. When the large-span protective shed machined through the construction method is applied to machining of the reinforcement cage, the protective shed can be used for well protecting workers, equipment and materials, and meanwhile after the reinforcement cage is machined, the reinforcement cage can be conveniently transferred out of the protective shed through the inclined plates. Therefore, the construction method can adapt to construction of different types of large-span protective sheds, and the large-span protective sheds can achieve the effects of effective protection and convenient machining and transferring of the reinforcement cage.

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 invention provides a combined type brake beam, a bogie and a railway wagon, and the combined type brake beam comprises a supporting rod; one end of the supporting column is connected to the supporting rod, and the supporting column is located between the two ends of the supporting rod; the arch-shaped rod is connected between one end of the supporting rod and the other end of the supporting column, the arch-shaped rod is provided with a first rod section and a second rod section which are connected, the first rod section and the second rod section both extend between the supporting rod and the supporting column, and the first rod section is located between the second rod section and the supporting rod; one end of the connecting rod is arranged at the joint of the first rod section and the second rod section, and the other end of the connecting rod is connected to the supporting rod; the extending direction of the first rod section intersects with the extending direction of the second rod section. The combined brake beam has high deformation resistance under the condition that the overall weight is certain, the structural reliability of the combined brake beam can be guaranteed, meanwhile, the lightweight level of the combined brake beam is improved, and the overall weight and the operation load of a railway wagon are reduced.

The utility model discloses a sheath type low-smoke halogen-free flame-retardant cable, and relates to the technical field of cables. The sheath type low-smoke halogen-free flame-retardant cable comprises three groups of cable core conductors, a flame-retardant braided layer and a reinforcing structure, the three groups of cable core conductors are annularly distributed at equal intervals, protection structures are arranged on the outer walls of the cable core conductors, the flame-retardant braided layer is arranged on the outer walls of the three groups of protection structures, a steel wire rope is arranged in the flame-retardant braided layer, and the reinforcing structure is arranged in the steel wire rope. A low-smoke halogen-free flame retardant is filled between the flame-retardant braid layer and the steel wire rope, an outer sheath is arranged on the outer wall of the flame-retardant braid layer, and the reinforcing structure is arranged between the steel wire rope and the flame-retardant braid layer and is composed of a mounting gasket, a supporting column and a connecting gasket. The sheath type low-smoke halogen-free flame-retardant cable has a good flame-retardant effect, and also has a low-smoke halogen-free effect, so that the use environmental protection property of the cable is improved, the structural stability of the cable is relatively good, and the structural reliability of the cable in use is 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.