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171 results about "Bend radius" patented technology

Bend radius, which is measured to the inside curvature, is the minimum radius one can bend a pipe, tube, sheet, cable or hose without kinking it, damaging it, or shortening its life. The smaller the bend radius, the greater is the material flexibility (as the radius of curvature decreases, the curvature increases). The diagram below illustrates a cable with a seven-centimeter bend radius.

A composite material fiber direction simulation modeling method and system

The application relates to the technical field of fiber direction simulation, in particular to a composite material fiber direction simulation modeling method and system. The method comprises the following steps: collecting a fiber laying track, correcting the bending radius and unit tangent direction of a path point, and obtaining a fiber laying corrected track; constructing a first direction distribution map according to the tangent direction of each path point in the fiber laying corrected track; analyzing the coverage range of each path in the first direction distribution map on a component curved surface, identifying a curved surface overlapping and crossing area, and calculating an included angle adjustment amount of a direction vector; dividing the first direction distribution map into finite volume units, so as to obtain a second direction distribution map; and performing fiber direction simulation verification according to the second direction distribution map and in combination with preset material anisotropy properties, so as to obtain a fiber direction simulation result. The application is helpful to improve the spatial accuracy of fiber direction modeling and the consistency of simulation prediction.
Owner:SHENZHEN DINGXINDE NEW MATERIAL TECHNOLOGY & INNOVATION CO LTD

Manufacturing method for press-formed product

To provide a manufacturing method for a press-formed product that is able to properly perform press forming while reducing a bending radius, and to provide the others.SOLUTION: A manufacturing method for a press-formed product P includes: an intermediate product preparing step (step S10) of preparing an intermediate product P1; a placing step (step S20) of placing the intermediate product P1 on a second lower die 21 in which a second shoulder portion 21c is formed with a curvature radius RC2 smaller than a bending radius RB1 of a first bent portion 80; a sandwiching step (step S30) of lowering an upper die 22 including an upper-die shoulder portion 22c with respect to the second lower die 21, sandwiching a side plate 82 of the intermediate product P1 between a side surface 21b and an upper-die recessed-portion side surface 22b, and restraining a bottom plate 81 in a direction along the bottom plate 81; and a press-forming step (step S40) of lowering the upper die 22 to press-form the intermediate product P1.SELECTED DRAWING: Figure 3
Owner:JMAX

A putty flexibility detection device

The utility model discloses a putty flexibility detection device, and the putty flexibility detection device is provided with a plurality of groups of support plates and shaft bodies, and the support plates and the shaft bodies are connected through folding assemblies, and the folding assemblies can drive the support plates to move along the radial direction of the shaft bodies, and the opening end of the U-shaped frame is rotatably arranged on the shaft body, and a roller is movably arranged in the U-shaped frame through a first displacement assembly, and the roller can move along the length direction of the U-shaped frame, and the clamping block is slidably arranged on the top of the pedestal and connected with the pedestal through a second displacement assembly. Through the above arrangement, the bending radius of the test plate can be adjusted, and the application scenarios of the device are widened.
Owner:CHONGQING ZHUODA TESTING TECH CO LTD

An adjustable bend sheath assembly

The present application relates to a kind of adjustable bending sheath tube assemblies, including adjustable bending pipe with adjustable bending pipe section and control structure, control structure includes adjusting pipe;Adjusting pipe includes a plurality of first circular arc segments that are connected head to tail and are distributed along the circumference of adjusting pipe, at least one first circular arc segment is different from the hardness of other first circular arc segment;Or, gap is extended along the axial direction on adjusting pipe, adjusting pipe includes at least one second circular arc segment, gap and second circular arc segment are distributed at different positions on the circumference of adjusting pipe;Adjusting pipe can rotate around the axis of adjustable bending pipe, to control the different positions on the circumference of adjusting pipe and the bending direction of adjustable bending pipe section are aligned, and adjustable bending pipe section and adjusting pipe can be bent synchronously, so that adjustable bending pipe can be bent with different bending radius.The above-mentioned adjustable bending sheath tube assembly is adjusted by adjusting the circumferential position of adjusting pipe, to adjust the bending radius and bending angle of adjustable bending pipe section, improve the applicability of the adjustable bending sheath tube assembly, facilitate to reach target position quickly.
Owner:SHENZHEN BETTERWAY MEDTECH CO LTD

Building Electrical Construction Safety Monitoring System and Method Based on Internet of Things Technology

This invention proposes a building electrical construction safety monitoring system and method based on Internet of Things (IoT) technology. Through image acquisition, modeling, data analysis, and calculation, it accurately identifies potential problems during construction, such as insufficient bending radius and space constraints. Compared to traditional manual inspection methods, this system can assess risks in real time and quantitatively, avoiding the oversights and delays of manual inspections. It can promptly identify potential cable bending risks during the construction phase, providing timely risk warnings to the construction team and helping them take appropriate adjustment measures to avoid serious electrical faults and fire hazards later. It enables optimization of pipeline layout and cable configuration in the early stages of construction, reducing electrical accidents caused by improper bending and ensuring the stability and safety of the building electrical system during long-term operation.
Owner:SHENZHEN SHENHANG SCIENCE & TECHNOLOGY CO LTD

Polymorphic DC resistance testing device

The invention relates to the technical field of cable direct-current resistance testing, and provides a polymorphic direct-current resistance testing device which comprises a main frame, a to-be-tested cable is arranged above the main frame, a spring clamp is arranged on the side face of the to-be-tested cable, and an electric lifting table is fixedly connected to the side face of the spring clamp. The side surface of the electric lifting platform is slidably connected with a vertical guide rail, and one end of the to-be-tested cable is provided with a test frame. Through arrangement of a cooperative structure of the spiral frame, the adjusting column, the quantitative sliding rail and the electric sliding table, the contact point of the spiral frame and the to-be-tested cable rotates along with sliding of the adjusting column, continuous adjustment of the bending radius is achieved, the problem that in the prior art, the bending form is single due to the fact that the radius of a bending wheel is fixed is solved, and the bending accuracy is improved. Various bending radius requirements in actual working conditions can be simulated, and the authenticity and comprehensiveness of bending testing are improved.
Owner:JINHUA POWER TRANSMISSION & DISTRIBUTION ENG +1

A method for controlling bending radius of tube spinning bending incremental forming

ActiveCN117505622BGeometric controlManufacturing technology
This application relates to the field of metal bending component manufacturing technology, and discloses a method for controlling the bending radius in progressive forming of tubular materials by spinning and bending. The method includes the following steps: S1, obtaining an optimal combination of loading parameters affecting the forming quality indicators of the tubular material through orthogonal experiments; S2, establishing a regression function between the bending radius and the spinning and bending deformation parameters based on the optimal combination and the Maximin Latin square test results through stepwise regression analysis; S3, testing the regression function; if the test passes, obtaining the regression model of the bending radius; if the test fails, returning to step S2; S4, controlling the bending radius under the optimal loading parameter conditions using the regression model. This application incorporates a diameter reduction parameter into the control method, significantly improving the accuracy of bending radius control compared to existing geometric control models. It reduces the average error between tubular bending radius prediction and control from 10.28% to 5.2%, offering advantages such as high forming accuracy, wide applicability, and higher reliability.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

A kind of aluminum veneer multi-axis linkage numerical control bending method based on springback compensation

PendingCN122142146ANumerical controlGrating
The present application belongs to the technical field of metal sheet plastic forming and digital control cross, and discloses a kind of aluminum veneer multi-axis linkage numerical control bending method based on springback compensation.The method collects historical bending process data, with sheet thickness, bending radius, die slot width and feed speed as input features to divide process feature subspace, and establishes a bending angle springback amount mapping matrix in each subspace to obtain initial down pressure depth compensation value for performing feedforward control.In the multi-axis linkage bending stage, real-time servo motor torque feedback signal and grating displacement signal are collected, and the real-time plastic deformation resistance of the current bending zone is calculated, and the online compensation correction amount is solved using the dynamic differential equation of deformation resistance and springback angle, and the correction amount is added to the remaining trajectory planning of multi-axis interpolation algorithm.The present application makes the down pressure trajectory self-adaptive correction according to real-time resistance, eliminates the fixed compensation deviation, and improves the compliance of bending angle to target value.
Owner:XINJIANG ZHONGMING XIXIANG NEW MATERIALS CO LTD

Pipe bending device with adjustable bending radius

The utility model discloses a pipe bending device with an adjustable bending radius, which relates to the technical field of pipeline construction, and comprises a base, a mounting plate arranged on the base, an annular fixed steel wheel arranged on the mounting plate, a first bolt arranged at the central position of the mounting plate, and a movable steel wheel arranged on the same horizontal plane with the fixed steel wheel, the second plug pin is arranged in the center of the movable steel wheel, the two ends of the connecting rod penetrate through the first plug pin and the second plug pin correspondingly, and the pipeline fixing clamp is used for fixing one end of a to-be-bent pipeline. An adjusting groove capable of adjusting the position of the second bolt is formed in the connecting rod; a plurality of adjusting holes which are annularly distributed are formed in the mounting plate, supporting rods corresponding to the adjusting holes in position are arranged at the lower end of the fixed steel wheel, and the supporting rods are matched with the adjusting holes. The pipe bending device provided by the utility model is adjustable in pipe bending radius, can meet the requirements of construction with different bending radiuses, is small in occupied area, and can be used in a small construction site.
Owner:CHENGDU IND EQUIP INSTALLATION

Anti-cracking test device

The anti-cracking test device comprises a bottom plate, a vertical frame, a lifting mechanism, two sets of clamps, a cylinder, an adjusting sleeve and a limiting ring, the vertical frame is vertically arranged on the bottom plate, the two sets of clamps are oppositely arranged on the two sides of the inner wall of the vertical frame, the lifting mechanism is connected with the clamps and controls the two sets of clamps to ascend and descend synchronously, and the cylinder is fixedly installed on the surface of the inner wall of the vertical frame. The adjusting sleeve is sleeved on the cylinder; the two ends of the cooled cable are installed in the corresponding clamps respectively, then the clamps are matched with the lifting mechanism to drive the clamps to move downwards, the cable is made to make contact with the cylinder, the cable is bent under the action of the cylinder, and therefore the cable low-temperature bending anti-cracking test is achieved, and when the bending radius needs to be adjusted, the adjusting sleeve with the corresponding radius is arranged on the cylinder in a sleeving mode. And then the limiting ring is screwed, and the installed adjusting sleeve is fixed, so that the test requirements of different bending radiuses are met, and the device is simple in structure, flexible and convenient to use and suitable for large-scale popularization and application.
Owner:FUJIAN QUAN TESTING CO LTD

Multi-functional cutting and forming machine for sheet metal

This application discloses a multi-functional sheet metal composite cutting and planing machine, comprising: a first frame; a cutting mechanism disposed on the first frame for cutting metal sheets; a first conveying structure for conveying metal sheets; a rotating structure for rotating metal sheets; a grooving mechanism disposed on the first frame for planing bending grooves on the metal sheets, solving the bending radius (R-angle) bending process; a second conveying structure for conveying metal sheets; a second frame; and a bending mechanism disposed on the second frame for bending the sheet metal. Through the above structure, this application allows for the direct processing of the required workpiece from metal sheets on a single machine, saving two-thirds of the machine's floor space, increasing processing speed by approximately 3 to 4 times compared to the original step-by-step processing, significantly improving the yield rate, refining the process, and saving approximately 5-6 workers, thus facilitating management.
Owner:JIANGXI KEYIDA INTELLIGENT TECH CO LTD

Active non-uniform loading pipe push-bending forming device

ActiveCN223819409UHeater RodPipe
The utility model relates to the technical field of metal pipe bending forming, in particular to an active non-uniform loading pipe push-bending forming device. The device comprises a bending die with a heating rod inserting opening and a cooling groove, an inner side punch and an outer side punch which can be controlled to move respectively, and a pipe blank to be bent, wherein an inner cavity of the pipe blank to be bent is provided with filler, and the two sides of a bending section of the pipe blank to be bent are coated with the same type or different types of lubricating liquid. According to the utility model, two or three differential loads of differential temperature, differential thrust and differential lubrication are compounded, and the deformation uniformity of the inner side and the outer side of a bent pipe is improved by actively and selectively applying various non-uniform boundary conditions to the inner side and the outer side of the pipe in the push-bending process, so that defect suppression is realized. In principle, the flow of materials of the pipe in the push-bending process can be changed through a composite loading boundary, the stress-strain state of the bent pipe is influenced, and the positive influence of each difference condition on the wrinkling and wall thickness reduction inhibition of the bent pipe is synthesized, so that the light-weight and high-reliability integral forming of the thin-wall small-bending-radius bent pipe can be realized.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Polyethylene profile bending device

The utility model belongs to the technical field of polyethylene profile production, and particularly relates to a polyethylene profile bending device which comprises a workbench, a lifting table is slidably connected to one side of the top of the workbench, limiting frames are symmetrically and fixedly connected to one side of the top of the lifting table, and clamping plates are slidably connected to the inner sides of the limiting frames. A fixing frame is fixedly connected to one side of the exterior of the workbench, arc-shaped plates are slidably connected to the exterior of the fixing frame at equal intervals, and rotating frames are rotatably connected to the two sides of the exterior of the fixing frame; the utility model provides a polyethylene profile bending device which solves the problems that in the prior art, when a polyethylene profile is bent, operation is carried out through manual cooperation with a bending device, however, an existing bending device is simple in function, only can achieve a single bending radius and lacks the bending radius adjusting function, and the bending efficiency is high. The problems that bending devices of other models need to be replaced when bending of different radiuses needs to be carried out, using is troublesome, and the machining efficiency cannot be improved easily are solved.
Owner:NINGDE FUTURE BOAT DEVELOPMENT CO LTD

Reels suitable for anchoring cables to frames

The present invention relates to a reel (1) suitable for anchoring a cable (3) to a frame (2), the reel (1) being adapted to be rotatably mounted on the frame (2) about a rotation axis (X), the reel (1) having a side surface (S) about an axis (Y) parallel to the rotation axis (X), the reel (1) being characterized in that the side surface (S) includes a first portion having at least a first bending radius measured in a plane (P) perpendicular to the rotation axis (X), the first bending radius being substantially greater than at least a second bending radius of a second portion of the side surface measured in the plane (P), the reel (1) being adapted to allow the cable (3) to travel by winding and / or unwinding the cable (3) along the first portion about the side surface (S) and by rotating the reel (1) about the rotation axis (X) between a first stop position and a second stop position.
Owner:CONDUCTIX WAMPFLER FRANCE

Forming method of large-diameter small-radius thin-wall bent pipe

PendingCN121589182AStraight tubePipe
The invention provides a forming method of a large-diameter small-radius thin-wall bent pipe, and relates to the technical field of bent pipe formation.The forming method of the large-diameter small-radius thin-wall bent pipe comprises the steps that S1, a to-be-bent area of a straight pipe blank is locally flattened, and a flattened pipe blank is obtained; s2, the flattened pipe blank is bent, and a preformed bent pipe is obtained; and S3, internal high-pressure bulging is conducted on the pre-formed bent pipe, and a final bent pipe forming piece is obtained. When the large-diameter ultra-thin-wall pipe is formed into the bent pipe with the small bending radius through the method, the risk that the outer side of the pipe is thinned and even broken can be reduced, the possibility that the inner side of the pipe is wrinkled can be reduced, and the overall wall thickness uniformity of the manufactured bent pipe is improved.
Owner:HARBIN INST OF TECH

Pipe bending forming method based on multi-dimensional gradient distribution magnetorheological elastomer

PendingCN121339257AElastomerAxial pressure
The invention belongs to the field of advanced pipe plastic processing and intelligent material application, discloses a pipe bending forming method based on a multi-dimensional gradient distribution magneto-rheological elastomer, and aims to solve the problems that an existing single-dimensional MRE cannot adapt to the pipe bending multi-area rigidity requirement, and the inner side wrinkles, the outer side wall thickness is reduced and the like due to the fact that a device is not provided with a special regulation and control module. The method comprises the following steps: preparing an axial (transition section-bending section magnetic particle gradual increase) and radial (center-circumference magnetic particle gradual change) multi-dimensional gradient MRE core mold, filling a pipe, and cooperatively optimizing a magnetic field and pressure through a fuzzy-PID (Proportion Integration Differentiation) algorithm by using a device comprising a non-magnetic component and a peripheral electromagnetic coil in combination with axial pressure, magneto-rheological rigidity and centrifugal force formula control parameters; the method can efficiently restrain forming defects, is suitable for high-strength, thin-wall and small-bending-radius pipes, and improves the forming quality and efficiency.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1

Method suitable for determining minimum bending radius of high-voltage cable with adhesive sheath structure

The invention relates to a method suitable for determining the minimum bending radius of a high-voltage cable with a bonding type protective layer structure. The method comprises the following steps: S1, acquiring material mechanical parameters of an adhesive used by the high-voltage cable with the bonding type protective layer structure; s2, constructing a finite element bending test model of the high-voltage cable with the adhesive sheath structure; s3, applying a pressing effect on the model to perform a bending test, judging whether the bonding layer is damaged or not based on material mechanical parameters and real-time monitoring data, stopping the bending test when the bonding layer is damaged, obtaining the bending deformation position of the cable at the moment, executing S4, and otherwise, strengthening the pressing effect and repeating S3; and S4, calculating the minimum bending radius corresponding to the cable according to the bending deformation position. Compared with the prior art, the method has the advantages of providing accurate data support for laying construction of the novel high-voltage cable with the adhesive sheath structure and the like.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO

Thermoplastic composite and method for producing thereof for reinforcing structure

The invention relates to a thermoplastic composite comprising:at least one straight portion having a circular section with an external diameter, and a longitudinal axis,at least one bent portion,at least one bending radius, of the at least one bent portion the bending radius being at most a factor f equal to 5 with respect to the external diameter of the at least one straight portion, anda thermoplastic matrix and a fiber reinforcement.The invention also relates to a structure to be reinforced comprising at least one thermoplastic, uses of a thermoplastic composite and a method for producing a thermoplastic composite.
Owner:ARKEMA FRANCE SA

A flexible board testing device

This application relates to the field of flexible plate testing technology, and in particular to a flexible plate testing device, including a fixed plate, a sliding plate, a follower plate, and a driving mechanism. The top surface of the fixed plate is suitable for connection to one end of the flexible plate. The top surface of the follower plate, at the end away from the sliding plate, is suitable for connection to the other end of the flexible plate. The driving mechanism is connected to the sliding plate and is used to drive the sliding plate to perform linear reciprocating motion, thereby driving the follower plate to perform linear reciprocating motion. During this process, the position of the crease in the middle of the flexible plate continuously changes. The fixed plate, sliding plate, and follower plate cooperate with each other to realistically simulate the bending and stretching states of the flexible plate in actual use. The gap between the top surface of the fixed plate and the bottom surface of the follower plate can be adjusted according to the thickness and bending radius of the flexible plate being measured to meet the testing requirements of various working conditions, greatly improving versatility.
Owner:SONGYANG ELECTRONICS MATERIAL KUSN

Reinforcing rib material and preparation method and application thereof

The invention relates to the technical field of hoses, in particular to a reinforcing rib material and a preparation method and application thereof. The material comprises the following components in parts by weight: at least one thermoplastic polyolefin, 80-120 parts of thermoplastic polyolefin, 15-20 parts of fiber and a grafting material, pins are arranged on a compression section and a mixing section of a screw for mixing the components, and the screw is integrally provided with a spiral groove. According to the invention, the relation between the fiber content in the reinforcing rib material component with the fiber reinforced phase and the bending radius and strength of the hose product is firstly found, and the hose product with the reinforced structure obtains higher strength by optimizing the preparation method while the fiber content is properly increased; and meanwhile, the bending radius is still maintained near the lowest level, so that an effective material formula and a preparation method are provided for a reinforced hose product.
Owner:ZHONG YU HOSES TECH CO LTD

A torsional compensation method for deformation sensing of ultra-weak grating optical cables

PendingCN122305957AGratingWavelength
A torsional compensation method for deformation sensing of ultra-weak grating optical cables is disclosed. First, the initial parameters of the ultra-weak grating composite optical cable are recorded. Then, the ultra-weak grating composite optical cable is straightened, and the wavelengths of all gratings in the cable are recorded as the initial wavelength matrix. When the cable undergoes deformation and bending, the wavelengths of all gratings are recorded as the deformation wavelength matrix. Next, the bending radius, the angle between the helical fiber ① and the bending direction, and the temperature change are calculated. Then, the torsion rate is calculated, and corrected according to the bending radius influence factor. The compensated bending direction angle is calculated. Finally, the bending radius and direction angle of all ultra-weak gratings are interpolated to reconstruct the deformation curve. This invention provides a torsional compensation method for deformation sensing of ultra-weak grating optical cables, offering a theoretical basis and specific implementation approach for correcting bending characteristic information during deformation measurement of composite optical cables.
Owner:CHINA THREE GORGES UNIV

Steel sheet, member, and method for producing same

The steel sheet has a TS of 1180 MPa or more and less than 1470 MPa, and has high YS, excellent ductility, excellent press formability of the inside and the ends of the steel sheet, and high crack propagation resistance. A base steel sheet has a predetermined component composition, the Vickers hardness of the base steel sheet is 84% or less with respect to a position 1 / 4 of the sheet thickness from the surface of the base steel sheet, the base steel sheet has a surface soft layer satisfying the following formula (1), the structure in the surface soft layer is within a specific range, and the structure in the position 1 / 4 of the sheet thickness of the base steel sheet is within a specific range. In a 90-degree V bending test having a bending radius of 0.5 mm, the length of a crack progressing in the ridge direction from the end of a bent ridge is 200 [mu] m or less, the El when subjected to a notch tensile test after being subjected to a heat treatment at 170 DEG C for 20 minutes is 6.0% or more, and the El when subjected to a notch tensile test after being subjected to a heat treatment at 170 DEG C for 20 minutes by introducing a 2% tensile nominal strain and then being subjected to a heat treatment at 170 DEG C is 5.0% or more. (1) 20 < = X < = 120-3800 * [Sb]-1900 * [Sn].
Owner:JFE STEEL CORP

Insulation busbar automatic bending device based on dynamic compensation

The invention relates to the technical field of busbar bending, in particular to an insulating busbar automatic bending device based on dynamic compensation, which comprises a fixing seat, and a fixing assembly which is arranged at the top of the fixing seat and is used for carrying out surface type contact on an insulating busbar and carrying out displacement compensation during bending. The top of the fixing seat is provided with a bending assembly which is matched with the fixing assembly to vertically bend or flatly bend the insulating busbar, and the fixing assembly comprises an adjusting plate which is linked with the bending assembly and is used for adjusting the bending radian; according to the invention, diversified bending processing of vertical bending or flat bending of different radians is realized for the insulating busbar, and during bending, surface type support is adopted for a non-bending area so as to avoid secondary bending deformation of the non-bending area, and following type dynamic displacement compensation is realized for bending movement of the insulating busbar, so that pulling of an insulating layer is avoided, and the bending quality of the insulating busbar is improved. And the accuracy of the overall shape of the insulated busbar and the insulativity of the bent insulated busbar are ensured.
Owner:ANHUI YUANZHENG CABLE TECH

Method and apparatus for testing the limit bending radius and fatigue strength of flexible sheet material

The application discloses a kind of limit bending radius and fatigue strength test method and device for flexible plate, including first support plate, second support plate and rotating mechanism;Wherein, the rotating mechanism includes horizontally arranged positive rotation shaft, and first rotating arm assembly is installed on the positive rotation shaft;The first support plate and the second support plate are adjacently arranged below the positive rotation shaft;The first rotating arm assembly connects the first support plate, so that the first support plate can be rotated relative to the positive rotation shaft, so that the included angle between first support plate and second support plate changes.The device is simple in structure, and is convenient to adjust;Different glass specifications can be quickly adjusted and test results are quickly obtained, and the repeatability is high;The method is simple to operate, and measurement data is accurate, and data repeatability and reliability are high.
Owner:HEBEI GUANGXING SEMICON TECH CO LTD +2

Broken contact prevention HDMI (High Definition Multimedia Interface) optical fiber

The utility model relates to the field of optical fiber cables, in particular to an anti-broken contact HDMI (High Definition Multimedia Interface) optical fiber cable, which comprises a connector lug, a protection limiting assembly and an auxiliary assembly, the outer end of the connector lug is provided with a limiting assembly used for guiding straight transmission of a wire body, one end of the connector lug is provided with an auxiliary assembly used for assisting insertion, and the protection limiting assembly comprises a cable, a positioning block, a plug pin, a limiting plate, a filling plate, a ring sleeve and a pressing ring. The outer wall of the cable is provided with a plurality of groups of positioning blocks for guiding and fixing the optical fiber cable, and the lower ends of the positioning blocks are provided with limiting plates; according to the utility model, a plurality of groups of positioning blocks are adopted to linearly position the cable, so that the bending degree of the optical fiber cable is effectively limited, the cable can be ensured not to exceed the maximum bending radius when being bent when the cable moves frequently or is subjected to external force, and the stress concentration and fracture risk caused by excessive bending in the optical fiber can be avoided.
Owner:GUANGZHOU DTECH ELECTRONICS TECH CO LTD

Steel bar hook detection ruler and multi-model steel bar hook detection combined tool

The utility model belongs to the technical field of constructional engineering reinforcing steel bar processing, and particularly relates to a reinforcing steel bar hook detection ruler and a multi-model reinforcing steel bar hook detection combined tooling, the reinforcing steel bar hook detection ruler comprises a longitudinal straight line section part which is used for leaning against the inner side surface of the longitudinal part of a reinforcing steel bar hook and measuring the length parameter of the straight line section of the reinforcing steel bar hook; the transverse straight line section part is used for leaning against the inner side surface of the transverse part of the steel bar hook; the arc-shaped part is arranged between the outer side surfaces of the longitudinal straight line section part and the transverse straight line section part and is used for leaning against the inner side surface of the bending part of the steel bar hook to measure the bending radius of the steel bar hook; and the longitudinal straight line section part is perpendicular to the transverse straight line section part. The device has the advantages that the quality of the hook at the tail end of the reinforcing steel bar is checked and accepted more conveniently and quickly, the hook quality is effectively controlled, the processing quality of the reinforcing steel bar is ensured, and the engineering entity quality is further improved.
Owner:CHINA RAILWAY NO 3 GRP CO LTD +1

Manual tool for processing large bend radius of metal conduit

ActiveCN224406135UReduce contact areaIncrease the hollow designCircular discMachine
The utility model relates to a bending pipe auxiliary tool technical field especially relates to a manual tool for metal conduit big bending radius processing, the utility model discloses disc and rotary support structure are equipped with on the upper portion of bottom plate through shaft A, washer and gasket, and can rotate freely around shaft A, be provided with gyro wheel subassembly on rotary support structure, sliding support subassembly is assembled on the bottom plate, and is located disc one side, and the conduit passes through sliding support subassembly and is supported by sliding support subassembly, and the front end of conduit is placed between disc and gyro wheel subassembly and is clamped by both, and rotates rotary support structure and drives conduit to rotate with disc and completes bending work, the utility model discloses technical scheme solves the problem that the existing bending pipe machine in prior art cannot realize the conduit with too big bending radius, and the bending pipe machine manufacturing cost is high, and the bending pipe object is single.
Owner:DALIAN CANDL TECH DEV CO LTD

A seedling disc parameterization design method, design system and product special for a seedling throwing machine

The present application relates to the technical field of agricultural machinery design, and more particularly to a seedling disc parameterization design method and system for a seedling throwing machine and a product, the method defines the shape by adjusting the depth, contour, cross section and clamping point parameters through the establishment of a parameterized pot body geometric model; a multi-objective evaluation system covering bending performance, pulling performance, growth adaptability and manufacturing economy is constructed; the user input agronomic requirements and machine parameters are received, the target volume and bending radius are automatically derived, and the optimization algorithm is driven to search for the optimal pot body geometric parameters with the highest comprehensive score. The product is characterized by having a nonlinear power function contour, an intelligent response clamping point and an optimized non-circular cross section. The present application method realizes adaptive mapping from agronomic requirements to optimal design, solves the industry problems of strong dependence on traditional design experience, no matching disc machine and difficult performance balance, and significantly improves the design efficiency, seedling disc reliability and operation quality.
Owner:HUNAN UNIV