20results about How to "Large section" patented technology

The invention discloses an application for reducing a conductor skin effect based on an electron deep protective agent, and relates to the technical field of current distribution regulation. Through real-time monitoring and self-adaptive regulation, current density is transited to a deep position layer by layer, a surface layer concentration phenomenon is remarkably reduced, dynamic response can be realized in a frequency change environment, and the current density is reduced. Meanwhile, an electron deep protection layer is introduced, current distribution can be stabilized and direct impact of frequency fluctuation can be relieved in a high-frequency environment, the anti-loss capability of the surface layer of the conductor is improved, the overall stability of the conductor is enhanced, the service life of equipment is prolonged, in addition, a closed-loop feedback control mechanism is adopted, and the service life of the equipment is prolonged. The adaptive filter monitors the current concentration condition in real time and automatically adjusts the current distribution, so that the current density always tends to a uniform and smooth transition state, the smoothness and stability of the current distribution are improved, and transient loss caused by current concentration under frequency fluctuation can be reduced.

The utility model discloses an opposite-pulling asymmetric double-arch large-span stadium roof structure which comprises a front inclined giant arch and a rear inclined giant arch, and the front inclined giant arch and the rear inclined giant arch are connected through a plurality of opposite-pulling trusses to form a self-balancing system. The two ends of the rear inclined huge arch are supported by crotch-shaped arch foot columns, and the part between the two ends is supported by a plurality of V-shaped inclined columns arranged on the stand structure; only the two ends of the front inclined huge arch are connected with the crotch-shaped arch foot columns, and the front inclined huge arch is not connected with the stand structure. The large-span stadium roof overcomes the defects of an existing large-span stadium roof, and solves the problems that an existing stadium roof structural component is large in size, a building is heavy, the space sense and the light sense of the building cannot be highlighted, natural lighting cannot be achieved, and energy consumption is high.

The utility model discloses a ventilation structure and an electronic atomization device thereof. The ventilation structure comprises an air inlet channel formed in a support assembly and a self-closing ventilation valve set arranged in the air inlet channel. The two ends of the air inlet channel are communicated with the atomization cavity and the liquid storage cup respectively, the self-closing ventilation valve set is arranged in the air inlet channel, the self-closing ventilation valve set can open the air inlet channel when the negative pressure in the liquid storage cup is smaller than a preset value, and during ventilation, consumption of atomized liquid in the liquid storage cup is reduced due to work, so that the pressure in the liquid storage cup is reduced, and the atomization effect is improved. The self-closing scavenging air valve group is pushed open by atmospheric pressure, so that air enters the liquid storage cup, the self-closing scavenging air valve group is closed when the pressure reaches balance after the air enters the liquid storage cup, the scavenging air channel achieves scavenging in the shortest distance, the section of the scavenging air channel can be made to be large, the scavenging sensitivity is high, and timely scavenging is guaranteed. Therefore, the defects of drying or pasting of the ceramic core and the like are avoided.

The present invention provides an LED light strip and a lamp, wherein the LED light strip comprises a widthwise extension portion, wherein two end faces of the widthwise extension portion along the thickness extension direction respectively form a first end face and a second end face; a fin structure is arranged on the first end face, wherein the fin structure is integrally formed or fastened to the widthwise extension portion; a plurality of fin structures are arranged along the width extension direction of the widthwise extension portion; the plurality of fin structures comprise at least two mounting fins, wherein the space between two adjacent mounting fins constitutes a first mounting space; a mounting groove is arranged on the second end face, wherein the inner space of the mounting groove forms a second mounting space. The heat generated by the LED lamp will be thermally conducted to the LED light strip, and the present invention increases the heat dissipation area between the LED light strip and the air by arranging the fin structure on the LED light strip, thereby improving the heat dissipation efficiency of the LED lamp in the heat conduction mode and increasing the service life of the lamp.

The invention relates to the technical field of cables, in particular to a large-section low-loss molded wire aluminum split conductor which comprises four fan-shaped strand blocks and a center line. According to the large-section low-loss molded wire aluminum split conductor, the four-split design is adopted, the production efficiency is greatly improved, each strand block adopts the aluminum molded wires, the filling coefficient is higher, the conductor with the larger section can be obtained by increasing the sector width and the sector height of each trapezoidal monofilament, the conductor is not limited by the number of the monofilaments, and the production efficiency is improved. The situation that more strand blocks are needed to obtain a larger cross section like a compact circular shape, and a single strand block is limited by the number of monofilaments is avoided; the filling coefficient of the compressed molded line is far larger than that of a compressed circular molded line, the water blocking performance of the molded line is higher, strand blocks are separated by the insulating water blocking strips, the effects of water blocking and eddy current segmentation can be achieved, the skin effect and proximity effect loss can be reduced, and optical fibers in the insulating water blocking strips can monitor the operating temperature of a conductor and improve the operating safety.

The invention provides a stepped descending plate connecting structure and a manufacturing method, and belongs to the technical field of drainage structures in buildings. A structural main beam and a structural secondary beam are arranged below a peripheral wall body of the toilet, a PEC beam is arranged below the structural main beam, and the surfaces, facing the inner side of the toilet, of the structural main beam and the structural secondary beam are each provided with a step-shaped descending plate connecting structure which comprises a first step surface, a second step surface and a third step surface which are integrally formed. The structural bottom plate is connected between the structural main beam and the structural secondary beam to form a first step surface; a second step face is arranged between the first step face and the outer closed wall body, and a third step face is formed by the portion, over the PEC beam, of the structural main beam.

The utility model relates to a kind of energy dissipation reinforcing assembly for RC frame column, comprising: prefabricated ECC plate, for being attached to the surface of structural column and being fixed with structural column;Energy dissipation piece, for being fixed on floor and being resisted with prefabricated ECC plate, suitable for when structural column vibration makes prefabricated ECC plate and energy dissipation piece relative movement, and make prefabricated ECC plate deformation, by the friction between prefabricated ECC plate and energy dissipation piece and the deformation energy dissipation of prefabricated ECC plate.This application plays the role of increasing the section of column by prefabricated ECC plate, realizes the reinforcement of structural column, and it is convenient to construct and low in cost;When structural column is vibrated, it drives prefabricated ECC plate to move relative to energy dissipation piece, utilizes the friction energy dissipation between prefabricated ECC plate and energy dissipation piece, structural column deformation makes prefabricated ECC plate itself deform, by the deformation energy dissipation of prefabricated ECC plate, the function of two-stage energy dissipation is realized, to effectively improve structural damping energy dissipation performance, improve structural seismic bearing capacity.

The utility model relates to an automobile rear floor boundary beam assembly and an automobile, the overall structure is large in the middle and small in two ends, and the automobile rear floor boundary beam assembly comprises a rear floor boundary beam rear section, a rear shock absorber buffer bracket mounting plate, a rear shock absorber buffer bracket reinforcing piece, a rear floor boundary beam front section and a rear shock absorber buffer bracket reinforcing plate; the front end part of the rear floor edge beam rear section and the rear end part of the rear floor edge beam front section are fixedly connected together through a rear shock absorber buffer bracket mounting plate, a rear shock absorber buffer bracket reinforcing piece, the rear floor edge beam front section and a rear shock absorber buffer bracket reinforcing plate; and the rear shock absorber buffer bracket mounting plate, the rear shock absorber buffer bracket reinforcing piece and the rear shock absorber buffer bracket reinforcing plate form a rear shock absorber buffer bracket structure. According to the utility model, the section of the cavity can be enlarged to the maximum extent, and meanwhile, the occupation of the chassis space is reduced.

The utility model discloses an air supply structure and an electronic atomization device thereof, and the air supply structure is characterized in that two ends of an air supply channel are respectively communicated with an atomization cavity and a liquid storage cup, a plugging structure extending into the air supply channel is arranged on a base, and a one-way circulation channel is formed between the air supply channel and the plugging structure; the two ends of the one-way circulation channel are connected with the atomization cavity and the part, located on the side, away from the base, of the blocking structure, of the air supply channel correspondingly, and the flowing direction of air flow in the one-way circulation channel faces the support assembly from the base. The consumption of atomized liquid in the liquid storage cup is reduced due to work, the pressure in the liquid storage cup is reduced, the one-way circulation channel enables air to enter the liquid storage cup, and the one-way circulation channel closes the air supplementing channel when the pressure reaches balance after air enters the liquid storage cup. The air supply structure is more reliable, the air exchange effect is better, and the problem of liquid leakage caused by deformation is avoided.

This invention relates to a new energy battery cooler, belonging to the field of new energy vehicle battery cooling technology. The new energy battery cooler includes a battery base, a controller, a protective shell, and a battery pack. The controller and protective shell are fixedly installed on the top of the battery base, and the battery pack is disposed inside the protective shell. A cooling flow guiding mechanism is included, comprising a contact shell, a cooling component, and a heat-conducting component. The contact shell is fixedly installed on the outside of the battery pack. By setting a cooling flow guiding mechanism on the outside of the battery pack, a passive adaptive flow guiding function not found in traditional liquid cooling structures is achieved. A composite layer of shape memory alloy memory valves and phase change microgrids is introduced into the cooling channel. When the battery pack locally heats up, the phase change layer absorbs and diffuses heat, while the memory valves deform to expand the channel cross-section, causing the coolant to automatically increase flow to the hot spot area to enhance heat transfer. This dynamically adjusts the local cooling capacity and significantly improves temperature uniformity.

The invention discloses a construction method for lengthening and transforming a bridge body, and belongs to the technical field of civil construction. The construction method for lengthening and transforming the bridge body is used for lengthening and transforming a main beam between an original bridge pier and an original bridge abutment, and comprises the following steps: chiseling off part of concrete protection layers on a top plate and a bottom plate, close to the end part of a newly-added bridge pier, of the main beam until main reinforcements on the top plate and the bottom plate are exposed; and the longitudinal main reinforcements in the length direction of the main beam are reserved, the longitudinal main reinforcements are lengthened, the prestressed steel strands are arranged, concrete is poured, and the beam body lengthening work is completed. According to the construction method for lengthening and transforming the bridge body, the span of an existing bridge is increased, the extension requirement of an underneath pass road is met, compared with dismantling and reconstruction, the construction period is short, cost can be saved, resource waste is reduced, and great social benefits are achieved.

The utility model discloses a ventilation structure and an electronic atomization device thereof. The ventilation structure comprises an air inlet channel formed in a support assembly and a ventilation valve arranged at the opening, facing a liquid storage cup, of the air inlet channel. The two ends of the air inlet channel are communicated with the atomization cavity and the liquid storage cup respectively, the scavenging air valve is arranged at the opening, facing the liquid storage cup, of the air inlet channel, when air exchange is not conducted, the gravity of atomized liquid in the liquid storage cup presses the scavenging air valve to close the scavenging air valve, and when air exchange is conducted, consumption of the atomized liquid in the liquid storage cup is reduced due to work; the pressure in the liquid storage cup is reduced, the atmospheric pressure pushes the scavenging air valve open, air enters the liquid storage cup, the scavenging air valve is closed when the pressure reaches balance after the air enters the liquid storage cup, the scavenging air channel achieves scavenging in the shortest distance, the section of the scavenging air channel can be made to be large, the scavenging sensitivity is high, and the air supplementing effect is good. And timely ventilation is ensured, so that the defects of drying or pasting of the ceramic core and the like are avoided.

The application provides a charging socket, and relates to the technical field of charging accessories. The charging socket comprises at least two power terminals, the power terminals are provided with connecting end faces, at least two connecting assemblies, the two connecting assemblies are connected with the connecting end faces of the two power terminals in one-to-one correspondence, and at least four conductive pieces, at least one power terminal is connected with at least two conductive pieces through the connecting assembly. The application connects a single power terminal with multiple conductive pieces (such as at least two conductive pieces) through the connecting assembly, so that the charging power is increased. Compared with the method of increasing the charging power by using a single large-section wire, since the increased power and total current-carrying capacity remain unchanged, the single large-section wire is replaced by multiple conductive pieces, so that the cross-sectional area of each conductive piece is smaller than that of the single wire, the conductive piece with a small cross section is easier to prepare, and the cross section is smaller, so the conductive piece is easier to bend and wire, and assembly is facilitated.

The invention discloses a suspended butterfly-shaped building structure and a construction method of the suspended butterfly-shaped building structure, relates to the technical field of buildings, and aims to solve the problems that an overhanging platform frame column does not fall to the ground and measures need to be taken to bear a load transmitted by an upper floor plane after a lower floor plane and the frame column of the building structure are retracted. The suspended butterfly-shaped building structure comprises a main body structure and a frame structure, wherein the frame structure comprises a plurality of inclined columns; the frame structure and the main body structure are arranged in the first horizontal direction, the inclined columns are located on the lower side of the frame structure, and the multiple inclined columns are arranged at intervals in the second horizontal direction; the frame structure comprises a plurality of overhanging platforms, a plurality of frame columns and at least one truss assembly, one ends of the overhanging platforms are connected with the main body structure, and the other opposite ends of the overhanging platforms are connected with the frame columns; the multiple frame columns are arranged in the second horizontal direction. The second horizontal direction is perpendicular to the first horizontal direction; the truss assembly is connected between at least one pair of two adjacent overhanging platforms.

The utility model discloses a high-flexibility reel cable, which relates to the field of cables and comprises conductors, conductor reinforcing layers are fixedly mounted on the conductors, insulating layers are fixedly mounted on the conductor reinforcing layers, insulating reinforcing layers are fixedly mounted on the insulating layers, and three groups of conductors, the conductor reinforcing layers, the insulating layers and the insulating reinforcing layers form a cable core. A tensile reinforcing layer is fixedly arranged outside the cable core, a high-elasticity fixed filling layer is fixedly arranged between the cable core and the tensile reinforcing layer, and an outer protective layer is fixedly arranged on the tensile reinforcing layer. The tensile property of the cable can be improved, in the frequent moving or bending process of the cable, the conductor and the insulating layer can be effectively protected, the situation that the conductor is snapped or the insulating layer is damaged in the dragging process of the cable is prevented, the service life of the cable is prolonged, the cross section of the conductor can be increased, the conductive performance of the conductor is improved, and the bearing capacity of the cable is improved.

The utility model discloses a kind of polyethylene cables, it is related to cable technical field, including cable core, the cable core is made of four annular distribution wire core stranding, the wire core is made of conductor and the insulating layer being set in the conductor outside, the interstice of the cable core is filled with epoxy resin glue, overlapping wrapping iron fluorine long composite fireproof belt outside cable core, iron fluorine long composite fireproof belt is extruded and covered with thermoplastic silicone rubber inner protective layer, the outside braiding of thermoplastic silicone rubber inner protective layer is by tinned copper braid, the outside wrapping of tinned copper braid is glass fibre rubber coated cloth, the outside of glass fibre rubber coated cloth is covered with high temperature resistant aluminium plastic composite belt, the outside overlapping wrapping of high temperature resistant aluminium plastic composite belt is high silica fibre fireproof belt, the extruded and covered with thermoplastic halogen-free low smoke flame-retardant polyolefin outer sheath of high silica fibre fireproof belt, the scheme solves the problem that polyolefin sheath power cable exists in high temperature resistance and flame retardant performance aspect deficiency, cannot work stably under high temperature environment.

The present invention discloses a floating seal and a main and final oil seal for a steering drive axle, comprising an annular base, wherein the annular base comprises: at least one inner circumferential ring located in the middle section of its inner annular wall and pointing radially inward, at least one outer circumferential ring located in the middle section of its outer annular wall and pointing radially outward, at least two inner sealing rings located on its inner annular wall, wherein the inner sealing rings are arranged on both sides of the inner circumferential ring; and at least two outer sealing rings located on its outer annular wall, wherein the outer sealing rings are arranged on both sides of the outer circumferential ring. The invention effectively solves the problem of oil leakage of the main and final oil seal in one paddy field operation season, and completes the user's desire and mission of not leaking oil in double-season rice for the main and final oil seal (floating seal). The structure can also be applied to similar structures of dynamic sealing of end faces on steering components and walking components of other machines.

The invention belongs to the technical field of environmental protection and dust removal, and particularly relates to a multi-stream stainless steel slab continuous casting machine under-machine dust removal purification system which comprises a continuous casting machine and a flame cutting machine, a plurality of sets of under-machine dust removal covers are arranged below the continuous casting machine and arranged on the side wall of a slag sluice in a staggered mode, and the flame cutting machine is arranged on the side wall of the slag sluice. And the under-machine dust removal cover is communicated with the dust removal flue. The dust removal pipeline is placed below the continuous casting machine, space is not occupied, and continuous casting equipment is convenient to overhaul and maintain; in addition, the dust removal cover is close to a smoke production point, the air suction effect is good, and the power of a motor to be used is small under the condition of achieving the same dust removal efficiency; meanwhile, flue gas containing iron powder does not pass through a flame cutting machine, and the service life of equipment is prolonged.

The utility model discloses a precast beam and a precast beam mounting system, and relates to the technical field of constructional engineering. Comprising a precast beam, the precast beam is arranged to be of a cuboid structure, precast beam frame vertical ribs are arranged at the four corners in the precast beam in the length direction respectively, and the precast beam frame vertical ribs are bound and connected through a plurality of precast beam stirrups; a plurality of groups of frame beam stirrups are pre-buried in the precast beam in the length direction of the precast beam, the frame beam stirrups extend to the position above the precast beam, and the precast beam parts located on the two sides of the frame beam stirrups form lug lifting parts. According to the prefabricated beam, the prefabricated part of the prefabricated beam is reduced, the beam section of the post-pouring part is increased, and the shear capacity under the earthquake action can be greatly improved by utilizing the bearing capacity of concrete of the post-pouring part in areas with heavy loads or high earthquake intensity; meanwhile, the prefabricated beam can reduce the weight of the prefabricated part, facilitates construction and hoisting, and reduces the manufacturing cost of the prefabricated part.

The utility model provides a stand column structure, a C column assembly structure and an automobile. The stand column structure comprises a stand column inner plate and a stand column reinforcing plate. The first end of the stand column inner plate is connected with the first end of the stand column reinforcing plate in the Y direction, and the second end of the stand column inner plate is connected with the second end of the stand column reinforcing plate in the Y direction. The stand column inner plate is matched with the stand column reinforcing plate to form a first cavity structure. The stand column inner plate and the stand column reinforcing plate are matched to form the first cavity structure, the section shape of the stand column structure is changed, the forming angle requirement under the conditions of the gap requirement a from the stand column structure to a tire envelope and the forming depth H can be met, the forming depth H is short, the section is enlarged, the X-direction space S can be fully utilized, the deformation resistance is enhanced, and the service life of the stand column structure is prolonged. The rigidity and modality of a vehicle body are guaranteed, the NVH performance of the whole vehicle is improved, and the side collision requirement of the vehicle is met.