25results about How to "Guaranteed bending performance" patented technology

The invention discloses a compression-resistant and torsion-resistant energy storage cable and a preparation method thereof, and relates to the technical field of energy storage cables. The compression-resistant and torsion-resistant energy storage cable sequentially comprises a cable core, an insulating layer, a lubricating shielding layer and a compression-resistant outer protective layer from inside to outside, wherein the compression-resistant outer protective layer at least comprises the following raw materials in parts by mass: 70-90 parts of high-density polyethylene; 10 to 20 parts of low density polyethylene; 20 to 30 parts of elastic particles; 30 to 40 parts of an ethylene-vinyl acetate copolymer; 30 to 40 parts of a flame retardant; 5 to 10 parts of maleic anhydride grafted poly ethylene propylene diene monomer; 0.1 to 1 part of an antioxidant; 1-2 parts of a lubricant; 0.1 to 1 part of a cross-linking agent; and 0.1-1 part of an assistant cross-linking agent. The anti-compression and anti-torsion energy storage cable prepared by the invention has excellent mechanical performance and electrical performance, and the anti-compression and anti-torsion performance of the energy storage cable is improved.

The invention provides a muscle elasticity modulus detection system and method based on a flexible wearable sensor. The muscle elasticity modulus detection system comprises a flexible wearable ultrasonic sensor array, an ultrasonic pulse generation receiver and a data acquisition system / PC terminal, receiving a pulse signal generated by the ultrasonic pulse generation receiver through the flexible wearable ultrasonic sensor, converting the pulse signal into an ultrasonic signal, transmitting the ultrasonic signal to a detected object, and feeding back an ultrasonic echo signal to the ultrasonic pulse generation receiver; and the ultrasonic pulse generation receiver sends the ultrasonic echo signal to the data acquisition system / PC terminal for analysis and processing to obtain the corresponding muscle elasticity modulus. The flexible wearable ultrasonic sensor has certain flexibility, and the sensors are connected through a snakelike circuit, so that the stretchable and bending performance of the flexible wearable ultrasonic sensor array is ensured, the sensor array is more closely connected with the human body, and the wearable purpose is achieved.

The invention discloses an automatic pipe bending machine which comprises a pipe bending operation table, a vertical supporting frame, a sleeve seat, an annular chuck and a rotating shaft table. In the using process of the automatic pipe bending machine, after one end of an aluminum pipe is bent, in order to ensure that the end point of the hollow aluminum pipe is locked and shaped, a first-stage lifting rod can be driven to drive an L-shaped seat to vertically ascend and descend; after the L-shaped seat is located at the bottom support position, a first-stage telescopic rod on the surface of the L-shaped seat can be driven to drive a pressure limiting block to support and abut against the bent end of the hollow aluminum pipe, so that multi-end-point supporting of the bent area of the hollow aluminum pipe is kept, the bending curvature of the hollow aluminum pipe is guaranteed, an operator can drive a booster pump, the booster pump can inject pressure into an oil storage pipe, and the oil storage pipe is bent. When the hollow aluminum pipe is bent, lubricating oil in the oil storage pipe can be injected into the oil spraying bin, the lubricating oil in the oil spraying bin can be evenly sprayed to the contact area of the arc-shaped die groove and the hollow aluminum pipe through the lubricating spraying head, and therefore bending abrasion caused when the hollow aluminum pipe makes contact with the pressed column is reduced, and the bending effect of the hollow aluminum pipe is guaranteed.

The utility model discloses a UHF flexible anti-metal tag, and relates to the technical field of RFID tags, the UHF flexible anti-metal tag comprises an antenna layer, the back side of the antenna layer is fixedly connected with a foam isolation layer, the back side of the foam isolation layer is fixedly connected with an elastic connection layer, the back side of the elastic connection layer is fixedly connected with a plurality of metal conductive sheets in an array manner, and the metal conductive sheets are connected with the antenna layer. The plurality of metal conducting strips are metal plates with chamfers cut on four sides of the rear sides, and adhesive layers are arranged on the rear sides of the metal conducting strips, the overturning angles of the adjacent metal conducting strips are limited through the elastic connecting layers and the metal conducting strips, the circuit in the antenna layer can be prevented from being bent and damaged, the normal use of the antenna layer is ensured, and the service life of the antenna layer is prolonged. Meanwhile, the bending performance of the label can be guaranteed through overturning of the adjacent metal conductive sheets, the label can be conveniently attached to the bent surface, and the label can be conveniently attached and fixed through the arranged adhesive layer.

The invention relates to the technical field of medical flexible lenses, and discloses a 360-degree bendable medical flexible lens cannula which comprises an insertion part and an operation part, a flaring ring is arranged on the side, away from the insertion part, of the operation part, two pull wires are arranged in the insertion part and the operation part, the pull wires are arranged in the insertion part and the operation part in a penetrating mode, and the flaring ring is arranged on the side, away from the operation part, of the operation part. The bending angle of the far end of the insertion part is changed under the driving of the operation part; the insertion part consists of a lining layer, a supporting layer and a coating layer, and is sequentially divided into a far-end insertion part, a middle-section insertion part and a near-end insertion part in the length direction; a wheel shaft used for pulling the pull wire and a hand wheel arranged outside the wheel shaft in a sleeving mode are arranged in the operation part. According to the medical flexible lens cannula, the hand wheel rotates and draws the two traction lines which are arranged in a penetrating mode, so that the far end of the insertion part is bent and deformed in at least two perpendicular directions, and the problem that the clinical operation flexibility is insufficient due to the fact that most traditional medical flexible lens cannulas adopt one-way traction is solved.

The invention discloses a UHPC bridge suitable for rural highways and a construction method thereof.The UHPC bridge comprises a main beam, a bridge deck slab and a pavement layer, and the main beam comprises two UHPC anti-collision guardrails located on the two sides of the bridge deck slab; prestressed steel beams, tensile steel bars, pre-buried sections of bridge deck transverse steel bars and a plurality of longitudinal structural bars are arranged in the UHPC anti-collision guardrail, the tensile steel bars are arranged on the collision face of the UHPC anti-collision guardrail, and the lower ends of the tensile steel bars are bound and fixed to the pre-buried sections of the bridge deck transverse steel bars. The tensile steel bars are further fixedly connected with the longitudinal constructional bars; the bridge deck slab transverse reinforcing steel bars are annular stirrups, and the bridge deck slab transverse reinforcing steel bars and the bridge deck slab longitudinal reinforcing steel bars in the bridge deck slab are welded and fixed. On the basis of meeting the flood control and navigation requirements of the river channel, the height of the bridge structure can be reduced, and the length of a bridgehead wiring road is reduced.

This utility model discloses a heat-insulating pre-embedded channel component. The heat-insulating pre-embedded channel component includes a channel steel and an anchor fixedly connected by welding. The anchor includes a sheet-like substrate with a rectangular notch on its front side for embedding into the channel steel. The front end face of the sheet-like substrate is flush with the front end face of the channel steel. The front end face of the channel steel is covered with a heat-insulating layer. A horizontally arranged strip-shaped protrusion is provided on the lower side of the sheet-like substrate, and a concave notch is provided on the upper side of the sheet-like substrate. The longitudinal length of the area of ​​the sheet-like substrate in front of the concave notch is greater than the longitudinal length of the area of ​​the sheet-like substrate in rear of the concave notch. This utility model optimizes the structure of the pre-embedded channel component by adding a heat-insulating layer, thereby integrating heat insulation into the pre-embedded channel component and achieving the effect of thermal break heat transfer. This utility model achieves pull-out resistance in the pre-embedded channel component and ensures bending resistance in the anchor.

The utility model discloses an adjustable spectacle frame bending device which comprises a device body, a workbench is installed in the device body, two sets of symmetrically-distributed supporting columns are fixedly installed at the four corners of the bottom end of the workbench, symmetrically-distributed installation grooves are formed in the right side of the top end of the workbench, and rotating motors are fixedly installed in the installation grooves. The working table is installed in the glasses frame bending device, the sliding groove is formed in the top of the working table, the rotating motor in the mounting groove in the top end of the working table drives the second screw rod to rotate, the mounting shell can effectively move front and back along the sliding groove, and the bending assembly can comprehensively bend glasses legs of a glasses frame; the glasses legs can better reach the corresponding amplitude; meanwhile, the clamping assemblies are installed, when the spectacle frame is placed on the bearing rods, the inner ends of the spectacle legs of the spectacle frame can be clamped and fixed through the clamping assemblies, so that when the spectacle legs are bent, the spectacle frame cannot move along with the spectacle legs, and the bending effect of the spectacle frame can be guaranteed.

The utility model relates to the technical field of chemical equipment, in particular to a corrugated pipe compensator with vibration and noise reduction effects, which comprises a middle limiting sleeve, a plurality of vibration reduction springs are fixedly connected to the upper end and the lower end of the middle limiting sleeve, and a fixing frame is fixedly connected to the tail ends of the vibration reduction springs. The lower end of the middle limiting sleeve is fixedly connected with a plurality of buffer noise reduction devices; the utility model has the beneficial effects that by arranging the buffer noise reduction device, when the compensator is used, the compensator is flexibly fixed and is connected with one another through the four damper springs, so that the bending performance of the corrugated pipe is ensured, meanwhile, as the damper springs can absorb more vibration, the propagation of noise can be greatly reduced when the corrugated pipe is subjected to vibration reduction, and the service life of the compensator is prolonged. And the vacuum sound insulation cavity is arranged, so that sound transmission caused by vibration of the device is greatly reduced.

The invention discloses a dark-excavated large-span column-free underground structure and a construction method for rock-soil strata, and relates to the field of underground engineering technology. The method comprises the following steps: step S1, constructing a plurality of upper transverse guide holes longitudinally above a tunnel vault, using the upper transverse guide holes to preliminarily perform vertical or oblique reinforcement treatment on the rock-soil within the tunnel vault and side wall range, and after the reinforcement range reaches the strength requirement, constructing transverse connecting beams inside all the upper transverse guide holes, and reserving oblique holes in all the transverse connecting beams and all the upper transverse guide hole side walls; using the upper transverse guide holes, transverse connecting beams, transverse frame beams and two obliquely tensioned prestressed anchor cables, etc., the transverse guide holes and the structural members and rock-soil within the tunnel vault range are formed into a whole, the upper load is resisted, and the bending resistance of the overall force system is ensured, and the cohesion and internal friction angle of the rock-soil between the upper transverse guide holes and the transverse frames ensure the shear resistance of the overall force system.

The utility model belongs to the technical field of FPC bending, and particularly relates to an FPC bending device which comprises a base. A supporting frame is fixedly connected to the base, a pneumatic cylinder is installed on the supporting frame, a pneumatic rod is assembled at the acting end of the pneumatic cylinder, a bending die is fixedly connected to the bottom end of the pneumatic rod, first fixing bases are fixedly connected to the two sides of the bending die, sleeves are hinged to the interiors of the two first fixing bases, telescopic rods are movably installed in the two sleeves, and the telescopic rods are fixedly connected to the base. The other end of the telescopic rod is fixedly connected with a mounting frame, a pressing wheel is rotatably mounted in the mounting frame, and the bottom end of the telescopic rod is sleeved with a fixed circular plate; in the downward pressing and bending process, through cooperation of the second spring, the sleeve, the telescopic rod and the first spring, the pressing wheel can effectively press and limit the two ends of the circuit board all the time, the phenomenon that the circuit board slides or tilts in the bending process is avoided, and therefore the bending effect of the circuit board is guaranteed.

The utility model relates to the technical field of steel bar bending machines, and discloses an angle-adjustable steel bar bending device for buildings, which comprises a seat body, the top end face of the seat body is fixedly connected with a limiting column, the top end face of the limiting column is fixedly connected with a rotating shaft, and the outer wall of the rotating shaft is provided with a bending component. According to the angle-adjustable reinforcing steel bar bending device for the building, a rubber block abuts against a reinforcing steel bar, the friction force between an extending block and the reinforcing steel bar is increased, enough fixing force is provided for a bending assembly to resist the stress of the reinforcing steel bar, the reinforcing steel bar is prevented from being bent and deviated uncontrollably, the bending effect is guaranteed, meanwhile, an indicating strip is rotated to a scale strip with the needed angle, and the angle-adjustable reinforcing steel bar bending device is convenient to use. And by arranging a cleaning brush, after bending is completed, the reinforcing steel bars are taken out from bottom to top, the reinforcing steel bars pass through the cleaning brush, the cleaning brush cleans the surfaces of the reinforcing steel bars, and the situation that the hands of people taking the reinforcing steel bars are scratched by residual metal chippings is avoided.

The stent comprises a proximal section stent, a middle section stent and a telecentric section stent which are distributed in the axial direction, and the middle section stent comprises a plurality of stent rings; the fixed connecting pipe is fixedly connected with the bracket ring; the first axial connecting piece penetrates through the fixed connecting pipe and is fixedly connected with the fixed connecting pipe; the movable connecting pipe is movably connected with the bracket ring; and the second axial connecting piece penetrates through the movable connecting pipe and is movably connected with the movable connecting pipe. When the stent is implanted into a narrow true lumen, connecting lines or other structures protruding towards the interior of the lumen do not exist, use of other interventional instruments is not affected, follow-up interventional operations are not affected, the axial connecting piece is subjected to bending shaping treatment, the natural form is a bent shape attached to the blood vessel form, the whole stent is in a bent shape, and the stent is not prone to deformation. Therefore, the acting force on the blood vessel is small, and the damage to the blood vessel after implantation is reduced.

The invention provides a track body capable of ensuring the flexibility of the track body and preventing the up-and-down vibration of the rollers as much as possible when the rollers cross the protruding portions of the core bones. The track body is provided with core bones (10) embedded at substantially equal intervals in the track body (9) and rolling paths (12, 13) for the rollers arranged on both sides in the track width direction of the track body (9) on the side opposite the ground contact surface. The track body is provided with protruding portions (24-27) protruding from each core bone (10) to both sides in the track rotation direction and supporting each rolling path (12, 13) on both sides in the track rotation direction of each core bone (10). At least the tip end portions of each protruding portion (24-27) of each core bone (10) corresponding to each rolling path (12, 13) are arranged offset from each other in the track width direction within the width of each rolling path (12, 13). The tip end of the protruding portion (25) of one core bone (10) and the tip end of the protruding portion (26) of the other core bone (10) are arranged close to or overlapping each other in the track rotation direction.

A variable-cross-section automobile door anti-collision beam relates to the technical field of automobile door manufacturing, is an integrally formed cavity structural member with a variable cross section, and is provided with a left end part, a middle part, a right end part and a transition area; and transition areas are arranged between the left end part and the middle part and between the right end part and the middle part. Compared with a traditional sheet type thermal forming anti-collision beam, the anti-collision beam with the variable cross section has higher strength and bending resistance, compared with a tubular anti-collision beam with the same material thickness, the anti-collision beam with the variable cross section has the advantages that the bending resistance of the anti-collision beam can be guaranteed through variable cross section, variable material thickness and variable strength, meanwhile, the product weight can be effectively reduced, and due to the arrangement of a transition area, the product quality is improved. And the collision energy absorption effect is achieved, and the harm of rigid collision to the human body during vehicle collision is reduced.

The present invention provides a test device for an anti-corrosion layer of an isolation fence, which relates to the technical field of anti-corrosion layer testing of isolation fences, and comprises: a supporting frame and an anti-corrosion layer test unit B; a mounting unit is installed on the top of the supporting frame, and a row of isolation fence steel wires to be tested is arranged on the mounting unit; an anti-corrosion layer test unit A is installed on the supporting frame; a linkage unit is installed on the top of the mounting unit; two groups of anti-corrosion layer test units B are provided, and two groups of anti-corrosion layer test units B are installed on the supporting frame; two circular mounting shafts are provided, and the two circular mounting shafts are rotatably installed on four rectangular mounting blocks; according to the present invention, the two rows of rectangular fixed blocks can slightly rotate a certain angle under the force after the isolation fence steel wire is bent, thereby ensuring the bending effect of the isolation fence steel wire after the test; the problem that the isolation fence steel wire usually does not have a rotation function after being fixed, resulting in inaccurate bending test of the isolation fence steel wire is solved.

The workbench for the bending machine comprises an operation table, a bending assembly is arranged at the top of the operation table, grooves are formed in the two sides of the operation table, sliding blocks are slidably connected into the grooves, the sliding blocks are elastically connected with the inner walls of the grooves through first springs, and fixing plates are rotatably connected to the tops of the sliding blocks; a clamping assembly is arranged at the top of the fixing plate, the bending assembly comprises a mounting groove formed in the top of the operation table, a first threaded rod is rotationally connected to the interior of the mounting groove, a moving block attached to the inner wall of the mounting groove is in threaded connection to the first threaded rod, and two bending columns are fixedly connected to the top of the moving block; one side of the operating table is fixedly connected with a driving motor, one end of the first threaded rod rotationally penetrates through the operating table, and the extending end is fixedly connected with the output end of the driving motor through a coupler; according to the scheme, the connecting position of the pipe and the clamping assembly is prevented from being bent, and the bending effect of the pipe is guaranteed.

The invention belongs to the field of pipe bending machines, and particularly relates to a numerical control pipe bending machine for pipes. A contact plate is arranged at the top of the fixing plate, the top of the fixing plate is fixedly connected with the bottom of the contact plate, a pipe bending mechanism is arranged at the bottom of the fixing plate, the outer surface of the pipe bending mechanism is fixedly connected with the bottom of the fixing plate, a positioning block is arranged at the right end of the pipe bending mechanism, and the left end of the positioning block is fixedly connected with the right end of the pipe bending mechanism. A mounting plate is arranged at the top of the positioning block, the bottom of the mounting plate is fixedly connected with the top of the positioning block, sliding rails are symmetrically arranged in the mounting plate, the two ends of each sliding rail are fixedly connected with the inner wall of the mounting plate, supporting mechanisms are arranged on the outer surfaces of the sliding rails, and the inner walls of the supporting mechanisms make contact with the outer surfaces of the sliding rails. A positioning mechanism is arranged at the top of the right end of the mounting plate, the top of the mounting plate is fixedly connected with the bottom of the positioning mechanism, and a guide mechanism is arranged in the positioning mechanism.

The present invention relates to the field of transportation technology, specifically to a scraper conveyor with a tail coal cleaning structure, including a frame and a coal cleaning component, a transport trough is fixedly provided on the top of the frame, a bearing plate is fixedly installed between the front wall and the rear wall of the transport trough, and a discharge port is penetrated and opened at the bottom of one end of the transport trough away from the coal cleaning component. The gravity of the coal acts on the material-moving component along the oblique downward component of the bearing plate, causing multiple material-moving blocks of the material-moving component to bend, and the bending of the multiple material-moving blocks causes multiple tension springs to be elastically deformed, and the front and rear two torsion blocks are twisted along the right-angled bent rod under the pulling force of the multiple material-moving blocks, so that the two torsion blocks and the multiple material-moving blocks are similar to circular arcs, so that the coal is pulled toward the middle, so as to reduce the amount of coal leaking to the tail of the transport trough through the gap between the torsion blocks and the inner wall of the transport trough during the transmission process, thereby improving the efficiency of coal transportation.

The ablation device and tube assembly comprises an inner tube and a sheath tube arranged outside the inner tube in a sleeving mode, the inner tube communicates with a liquid supply device, and the liquid supply device is used for providing cooling liquid for the inner tube; the ablation unit is arranged on the far-end side of the inner tube in a sleeving mode, ablation electrodes distributed annularly are arranged at the far end of the ablation unit, and the ablation electrodes are used for being attached to the inner wall of the targeted tissue and releasing ablation energy; the collecting unit is connected with the far end of the inner tube and axially spaced on the far end side of the ablation unit, spraying holes used for spraying cooling liquid to the ablation electrode are formed in the portion, between the ablation unit and the collecting unit, of the inner tube, and the collecting unit is used for collecting the sprayed cooling liquid. In the ablation process, the cooling liquid is recycled while the ablation electrode is cooled, and the possibility of other diseases caused by the fact that the cooling liquid enters human body targeted tissue is reduced.

The utility model provides a composite bridging flexible cable for a motor train unit, which belongs to the technical field of high-voltage cables and comprises a cable body, the cable body comprises a wire core structure, the wire core structure is provided with a compression-resistant composite layer, and the compression-resistant composite layer comprises a first elastic layer and a second elastic layer. A corrugated elastic structure layer is arranged between the first elastic layer and the second elastic layer, the corrugated elastic structure layer comprises a first contact part, a second contact part, a connecting part and edge sealing parts, the edge sealing parts are located at the two ends of the corrugated elastic structure layer, and the connecting part is located between the first contact part and the second contact part. On the premise of improving the overall compression resistance of the cable, weakening of the overall flexibility of the cable is avoided to a great extent, the toughness and bending performance of the cable are ensured, wiring and winding in a bridging area of the motor train unit are facilitated, the working difficulty is greatly reduced, and the working efficiency is improved.

The present invention discloses a 10kV high-performance cable for coal mining machines, comprising an internal wire core assembly and a sheath assembly coated on the outside of the internal wire core assembly, wherein the sheath assembly comprises an inner sheath, a braided layer and an outer sheath sequentially arranged from the inside to the outside; the internal wire core assembly comprises a plurality of power wire core units, a plurality of control wire core units and an optical fiber. The present invention provides a 10kV high-performance cable for coal mining machines, which is suitable for use in coal mining machines and has the characteristics of being not easy to be punctured, having strong anti-aging performance and having a long service life.

This utility model relates to the field of oilfield surface gathering and transportation pipelines, and particularly to a heated flexible composite pipe for oilfield gathering and transportation. It includes a composite flexible pipe, an installation box, and a joint insulation sleeve. A photovoltaic panel is fixedly installed at the front end of the installation box. An energy storage module is fixedly installed on the left side inside the installation box, and an intelligent control module is fixedly installed on the right side inside the installation box. A heating module and a monitoring module are fixedly installed inside the installation box next to the intelligent control module. A connecting ring is fixedly installed on the surface of the composite flexible pipe. This utility model significantly improves the comprehensive performance of the intelligent fiber-reinforced insulated heated flexible composite pipe through an innovative multi-layer composite structure design and an intelligent temperature control and heating monitoring system. The integrated intelligent system monitors the pipeline status in real time and provides timely warnings of potential problems, achieving efficient, safe, and reliable pipeline operation. It integrates high performance, efficient heating, excellent insulation, and intelligent management.

The invention discloses low-iron-loss non-oriented electrical steel for an electric vehicle motor and a processing method thereof, and relates to the technical field of non-oriented electrical steel, and the low-iron-loss non-oriented electrical steel comprises the following components in percentage by weight: 3.0-3.8% of Si, 0.25-0.35% of Als (% of Si), 0.40-0.55% of Mn (% of Si), less than or equal to 0.1% of P, less than or equal to 0.2% of N, less than or equal to 0.003% of C, less than or equal to 0.004% of C + Ti, less than or equal to 0.02% of S, and the balance of Fe and inevitable impurity elements. Through the gradient structure design of fine equiaxed grains on the surface layer and thick equiaxed grains on the core part, the high and low frequency working conditions of the electric vehicle driving motor are accurately matched. Under low frequency, the magnetic hysteresis loss is obviously reduced by coarse grains at the core part; under high frequency, surface layer fine grains improve resistivity by utilizing skin effect, eddy current loss is effectively inhibited, iron loss P1.5 / 50 is less than or equal to 2.35 W / kg, P1.0 / 400 is less than or equal to 14.00 W / kg, and P1.0 / 1000 is less than or equal to 38.0 W / kg, a cold rolling process adopts different-diameter rolling core design, and a gradient energy storage and grain structure can be formed through dynamic matching of the roller diameter of an upper working roller and the reduction rate of the current pass without additional nitriding and other complex processes.