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96 results about "Tensile structure" patented technology

A tensile structure is a construction of elements carrying only tension and no compression or bending. The term tensile should not be confused with tensegrity, which is a structural form with both tension and compression elements. Tensile structures are the most common type of thin-shell structures.

Tensile strength testing device for air spring production

The invention relates to the technical field of spring detection equipment, and discloses a tensile strength testing device for air spring production, the tensile strength testing device comprises a main body structure, a tensile structure is detachably mounted on the main body structure, and suspension structures are symmetrically arranged on the tensile structure. Detection accuracy, adaptation flexibility and operation safety are considered, high air leakage detection accuracy is achieved, different specification test requirements are met, personnel operation safety can be guaranteed, through a stretching structure, test scene suitability and data detection comprehensiveness are improved, multi-size and multi-type spring tests are adapted, and multi-working-condition mechanical data detection is achieved; through a suspension structure, adaptability and installation convenience of springs of different specifications are enhanced, installation tests of air springs and metal springs are compatible, and the comprehensive practical value of equipment is improved.
Owner:CHANGZHOU ZHUDIAN DONGHAI JINCHUANG SPECIAL RUBBER CO LTD

Angle-adjustable piano music stand

The utility model relates to the technical field of music instruments. The angle-adjustable piano music stand comprises supporting plates, the number of the supporting plates is two, the lower ends of the supporting plates are connected with supporting bases in a hinged mode, first sliding grooves are formed in the upper ends of the supporting plates, movable sliding blocks are connected into the first sliding grooves in a clamped mode, and one sides of the movable sliding blocks are connected with book ends in a hinged mode. Second sliding grooves are formed in the upper ends and the lower ends of the surfaces of the sides of the ends, close to each other, of the two supporting plates, sliding rods are connected into the second sliding grooves in a clamped mode, and the number of the sliding rods is two. According to the utility model, by moving the two groups of telescopic rods on the outer surfaces of the two ends of the connecting rod, the two groups of stretching structures can be driven to synchronously move outwards or inwards, so that the supporting plate and the supporting base can synchronously move outwards or inwards, and the device can be conveniently adjusted according to the actual length of a music score; the music score can be conveniently placed and supported by the equipment, and the applicability of the equipment is improved to a certain extent.
Owner:DEHONG VOCATIONAL COLLEGE (DEHONG SECONDARY VOCATIONAL SCHOOL DEHONG TECH SCHOOL)

Stretch-resistant cable

The utility model discloses a tensile cable which comprises an insulating layer and an outer sheath, the outer sheath is arranged on the outer side of the insulating layer, and a conductor is wrapped in the insulating layer; the cable further comprises a reinforcing layer, and the reinforcing layer is attached to the outer side of the insulating layer and is formed by weaving multiple layers of high-strength fibers. The cable further comprises an elastic buffer layer used for buffering the tensile force of the outside to the cable, the elastic buffer layer is composed of an inner sleeve and an outer sleeve which are respectively attached between the reinforcing layer and the outer sheath, and an anti-tensile structure located between the inner sleeve and the outer sleeve interlayer, and the anti-tensile structure is formed by X-shaped anti-tensile belts which are distributed around the circumference of the outer wall of the inner sleeve in an array mode. The two ends of the tensile belt are fixedly connected with the outer wall of the inner sleeve and the inner wall of the outer sleeve respectively, and the outer side of the outer sheath is also provided with a corrugated pipe. The utility model belongs to the technical field of cables, and particularly provides a cable for solving the problems of poor electrical performance and potential safety hazards caused by deformation and damage due to poor tensile property in the prior art.
Owner:GUANGDONG GUICHENG CABLE CO LTD

Automatic aligning and correcting device for bubble bag processing

The utility model discloses an automatic aligning and correcting device for bubble bag processing, which relates to the technical field of bubble bag processing and comprises an equipment frame, a stretching structure is arranged in the equipment frame, the tail end of the stretching structure is rotatably connected with an abutting shaft, and a limiting plate frame is arranged on one side close to the abutting shaft. Steering shafts are arranged on the sides, away from the abutting shafts, of the limiting plate frames, limiting shafts are arranged on the sides, located between the steering shafts and the abutting shafts, of the limiting plate frames, the abutting shafts are driven to be away from each other through a stretching structure in the equipment frame, and the abutting shafts push the air bubble film to generate tension in the away process; after the air bubble film generates tension, the air bubble film slides along the inclined face of the abutting shaft under the action of the tension and moves to the center position of the abutting shaft, then the air bubble film moves to the steering shaft and is bent through the steering shaft, it can be guaranteed that the air bubble films are mutually aligned, and the aligned air bubble films are folded back in the moving direction and do not need to continue to move forwards; and the field required by follow-up installation of auxiliary equipment can be reduced.
Owner:ANHUI HUIZHONG PACKAGING TECH CO LTD

Underwater pneumatic robot based on tensile structure

ActiveCN118952307BManipulatorGlass fiberFiber
The application discloses an underwater pneumatic robot based on a tension structure and relates to the field of six-pole tension whole robots. In order to solve the problems that the existing six-pole tension whole robots have low movement speed, are prone to slipping on smooth ground due to small friction force between the driving end and the ground, have low movement efficiency, have low movement stability and have high maintenance cost, the application adopts an X-axis bidirectional driving assembly, a Y-axis bidirectional driving assembly, a Z-axis bidirectional driving assembly and twenty-four ropes to form a fourteen-face frame, controls the driving expansion and contraction amount of a cylinder to achieve the purpose of tensioning or relaxing the ropes, adopts a rope connecting disc made of glass fiber material to connect the ropes, solves the plastic deformation problem of the mechanism caused by the fact that the traction rope is subjected to large external force due to the terrain and other factors, and the output end of the cylinder is provided with a buffer ball to increase the friction force with the ground and improve the movement efficiency and stability of the mechanism. The application is suitable for the field of underwater robots.
Owner:HARBIN INST OF TECH

Composite adhesive tape film easy to stretch

The utility model discloses an easy-to-stretch composite adhesive tape film which comprises an adhesive tape film core layer, an adhesive layer is arranged below the adhesive tape film core layer, the adhesive layer and the adhesive tape film core layer are bonded into a whole, a composite stretching layer is arranged above the adhesive tape film core layer, and the composite stretching layer and the adhesive tape film core layer are connected in an attached mode. A composite function layer is arranged on the composite stretching layer, the composite function layer is connected with the composite stretching layer in an attached mode, a surface layer is arranged on the composite function layer, a hydrosol layer is arranged between the surface layer and the composite function layer, and the surface layer and the composite function layer are bonded into a whole through the hydrosol layer. The inner layer of the composite adhesive tape film is provided with the stretching structure, so that the stretching performance of the composite adhesive tape film is improved, the composite adhesive tape film can be conveniently stretched and used, and the using effect of the composite adhesive tape film is improved.
Owner:KINWIN PLASTIC IND

Chromium-nickel alloy steel wire

ActiveCN224391275UAffect cutting efficiencyAffect cutting accuracyMetal working apparatusNickel alloyTensile structure
The utility model relates to alloy steel wire technical field, and disclose a kind of chromium-nickel alloy steel wire, including steel wire main part and the setting in the shaping structure and tensile structure of steel wire main part, steel wire main part side wall is provided with auxiliary cutting structure, when using the alloy steel wire to cut material, material is cut by repeatedly pulling and pulling main steel wire back and forth quickly, in the cutting process, the high hardness alloy ring of main steel wire side wall protrusion carries out high-speed effective cutting to material, the cutting generated swarf is discharged from the side of main steel wire by chip groove, avoid the swarf accumulation between main steel wire and high hardness alloy ring to influence cutting efficiency and accuracy, in some cases where steel wire needs to be bent, by the shaping of certain degree of metal wire being set in main steel wire, excessive rebound is avoided, four buffer holes being set on main steel wire save material while also bring some ductility to main steel wire, so that bending is more convenient.
Owner:TIANCHANG RUNYUAN METAL PROD CO LTD

Coaxial cable with coating structure

The utility model discloses a coaxial cable with a coating structure, which comprises an elastic middle shaft sleeve, the side end of the elastic middle shaft sleeve is fixedly connected with first mounting rings, the first mounting rings are symmetrically distributed at the left end and the right end of the elastic middle shaft sleeve, a spring conductor is arranged in the elastic middle shaft sleeve, and the first mounting rings are fixedly connected with the spring conductor. The left end and the right end of the spring conductor are fixedly connected with butt joint conductors. The butt joint sleeves are connected with the elastic middle shaft sleeve in a sleeving mode, the butt joint sleeves are fixedly connected with the first mounting ring through bolts, and the butt joint sleeves are symmetrically distributed at the left end and the right end of the elastic middle shaft sleeve; according to the coaxial cable, the elastic middle shaft sleeve, the spring conductor, the butt joint sleeve, the insulated cable pipe and the bolt form an elastic tensile structure, so that the coaxial cable can cope with high-strength tensile force in the use process, the tensile capacity of the coaxial cable is enhanced, and the durability of the coaxial cable is ensured.
Owner:商丘祈硕电子科技有限公司

Stretching structure for polyethylene film processing

The utility model relates to the technical field of stretching and winding mechanisms, and discloses a stretching structure for polyethylene film processing, which comprises a winding vehicle, a rotatable mounting connecting frame is arranged in the winding vehicle, and two groups of movable connecting frames are arranged on the upper side wall surface of the mounting connecting frame. And a winding roller capable of rotating is arranged between the close wall surfaces of the two groups of movable connecting frames. When a winding roller is fully wound with a polyethylene film, an installation connecting frame rotates anticlockwise, the upper side ends of two sets of movable connecting frames are turned leftwards, two sets of supporting sliding rods can drive sliding rolling balls to rotate, and the two sets of sliding rolling balls can move along the wall faces making contact with limiting connecting plates on the same side till the sliding rolling balls move to the inclined faces of the limiting connecting plates; and when the sliding rolling balls rotate downwards along the inclined faces of the limiting connecting plates, first springs start to extend, the two movable connecting frames move away from each other, and the two connecting clamping columns start to be away from the interiors of the connecting clamping grooves in the same side till the two connecting clamping columns are separated from the connecting clamping grooves in the same side, so that disassembly of the winding roller is achieved.
Owner:CHENGDU DONGHANG PLASTIC

Composite hose and method of manufacture and use thereof

The application relates to the technical field of fluid conveying pipes, in particular to a composite hose and a preparation method and application thereof. The preparation method comprises the following steps: cleaning a core rod and pipe manufacturing equipment and coating silicon oil, and pre-winding woven cloth; cleaning an inner steel wire and winding to form a skeleton with outward tension; winding a first film, a woven fabric and a second film to form a contact structure layer, a tensile structure layer and a sealing structure layer; winding an outer steel wire to provide inward constraint; dismounting the pipe and performing endoscopic detection and cleaning; performing passivation treatment on the inside of the pipe body; vertically connecting the pipe and vertically placing the pipe; and finally cleaning to reach a predetermined standard. Through systematic cleanliness control, passivation treatment and vertical pipe connecting process, the cleanliness, sealing reliability and anti-corrosion performance of the composite hose are improved, so that the high cleanliness, high sealing reliability and anti-corrosion requirements of spaceflight fuel filling are met, and the safety and reliability of the hose in spaceflight application are remarkably improved.
Owner:XIAMEN ZHUOLI PETROCHEMICAL EQUIP CO LTD

Composite hose as well as preparation method and application thereof

The invention relates to the technical field of fluid conveying pipe fittings, in particular to a composite hose and a preparation method and application thereof. The preparation method comprises the steps that a core rod and pipe manufacturing equipment are cleaned, silicone oil is coated, and woven cloth is pre-wound; cleaning the inner steel wire and winding to form a framework with outward tension; winding the first film, the braided fabric and the second film at a large angle to form a contact structure layer, a tensile structure layer and a sealing structure layer; winding an outer steel wire to provide inward constraint; the tube is detached, and the endoscope is detected and cleaned; passivating the interior of the pipe body; the vertical connecting pipe is vertically arranged; and finally cleaning to reach a preset standard. Through systematic cleanliness control, passivation treatment and vertical pipe connecting processes, the cleanliness, the sealing reliability and the anti-corrosion performance of the composite hose are improved, so that the requirements of spaceflight fuel filling for high cleanliness, high sealing reliability and anti-corrosion performance are met, and the safety and reliability of the hose in spaceflight application are remarkably improved.
Owner:XIAMEN ZHUOLI PETROCHEMICAL EQUIP CO LTD

Aluminum profile transfer device

The utility model discloses an aluminum profile transfer device, and relates to the technical field of aluminum profile production. The device comprises a main U-shaped support, auxiliary U-shaped supports, a base and buffering assemblies, the auxiliary U-shaped supports are arranged on the two sides of the main U-shaped support, the lower portions of the two auxiliary U-shaped supports and the lower portion of the main U-shaped support are connected with the base through the buffering assemblies, one auxiliary U-shaped support and one side of the base below the auxiliary U-shaped support are fixed to the same arch-shaped piece, and a pull rod is hinged to the upper end of the arch-shaped piece; the two auxiliary U-shaped supports and the side portions, below the two auxiliary U-shaped supports, of the base are provided with receding grooves for the extending strips to penetrate through. According to the utility model, a stretching structure composed of the extending strips, the receding grooves and the limiting bolts is adopted between the main U-shaped support and the two auxiliary U-shaped supports; according to the device, the stretching length of the two auxiliary U-shaped supports on the two sides of the main U-shaped support can be adjusted according to the length of a transferred aluminum profile, then the auxiliary U-shaped supports are matched with the transferred aluminum profile, and after stretching, the position after stretching adjustment can be fixed by tightening the limiting bolts.
Owner:FOSHAN KAILUNXUAN ALUMINUM CO LTD

MPO optical cable structure

The utility model discloses an MPO optical cable structure, which belongs to the technical field of optical cables, and comprises an MPO inner shell and a lining, the lining comprises a cylinder and a guide section, at least one blade plate is arranged on the outer peripheral surface of the lining along the axial direction of the lining, a cutting blade of the blade plate comprises a parallel section and a connecting section, the parallel section is arranged in the connecting area of the cylinder and the guide section, and the connecting section is arranged in the connecting area of the cylinder and the guide section. The cutting blade is arranged on the lining, when the lining and the MPO inner shell are installed in place, the end of the outer skin can be cut and opened by a section through the blade plate, the part between the wire core and the outer skin can be communicated with an external glue injection space, then glue injection is conducted through the glue injection hole, and therefore glue injection is conducted through the glue injection hole, and the service life of the MPO inner shell is prolonged. At the moment, the glue solution can enter the space between the outer skin and the wire core, so that the fixing strength of the outer skin can be improved, compared with the prior art, the tensile strength of the formed tensile structure is higher, and the tensile performance of the optical cable structure is improved.
Owner:SHANGHAI KEGUANG COMM TECH CO LTD

Air cooling tube bundle hoisting device

The utility model discloses a lifting device for an air cooling tube bundle. The lifting device comprises an air cooling tube bundle body and a tube bundle lifting beam, the adjusting mechanism is arranged at the joint of the air cooling tube bundle body and the tube bundle hoisting beam; the limiting mechanism is arranged at the joint of the air cooling tube bundle body and the tube bundle hoisting beam; and the positioning mechanism is arranged at the joint of the lifting beam and the tube bundle lifting beam. According to the air cooling tube bundle hoisting device, the air cooling tube bundle body and the tube bundle hoisting beam are connected through the adjusting mechanism, the tension structure of the tube bundle hoisting beam on the air cooling tube bundle body can be changed, the inclination angle of the air cooling tube bundle body is changed, and the installation requirement is met; through the limiting mechanism arranged between the air cooling tube bundle body and the tube bundle hoisting beam and the positioning mechanism arranged between the hoisting beam and the tube bundle hoisting beam, the control of the tube bundle hoisting beam on the air cooling tube bundle body is improved, so that the inclination angle of the air cooling tube bundle body is stabilized.
Owner:WUXI ARK FLUID TECH

A size-adaptive folding structure

The utility model provides a size self -adaptation folding structure belongs to paperboard folding device field. It includes frame, the bottom of frame is equipped with bottom plate, the top of bottom plate has the pressing plate that can along vertical direction lift, the side of bottom plate is equipped with paperboard alignment tensile structure, paperboard alignment tensile structure can remove setting on frame, the top of bottom plate still is equipped with the folding pressure equipment structure that can along vertical direction lift and can carry out transverse extension, through paperboard alignment tensile structure adaptation different cross paperboard needs folding part's width and length, through the extension of folding pressure equipment structure adaptation different folding line's length.
Owner:HANGZHOU TIANSHI PRINTING CO LTD

Arthroscopic device

The application discloses a kind of arthroscope devices, it is related to arthroscope technical field, including mirror sheath body, arthroscope body and guide sealing structure;Wherein guide sealing structure includes the sealing portion that is axially arranged along the heteromorphic cavity, guide portion, boost portion and self-locking portion, sealing portion includes sealing structure, support structure and tensile structure, the folding avoidance of sealing structure is realized when mirror tube insertion by the sealing portion of guide sealing structure and tensile structure cooperation, avoid the continuous friction and abrasion of traditional sealing ring, significantly improve sealing and service life, reduce the risk of liquid leakage;The adjusting structure of its guide portion drives guide structure to form self-adapting inverted taper channel in conical cavity, combined with self-locking portion to realize the radial locking of mirror tube, realize fast and accurate insertion, reduce the difficulty and risk of operator operation arthroscope body insertion.
Owner:XIAN NEW HOPE MEDICAL EQUIP CO LTD

Stretching equipment for composite fiber sound absorbing cotton production

ActiveCN224408459UFiberStructural engineering
The utility model provides a kind of composite fiber sound-absorbing cotton production tensile equipment, it is related to sound-absorbing cotton tensile equipment technical field including left clamping tensile structure, stretching platform and right clamping tensile structure, the left and right two sides of left clamping tensile structure are all fixed with first connecting plate, and the outer end of first connecting plate is fixed with linear guide rail, the rear end of first connecting plate is fixed with second connecting plate, the first stroke limit telescopic cylinder is placed in the rear fixed sleeve, and the front end of first stroke limit telescopic cylinder is fixed with rear fixed frame, the front end of rear fixed frame on the left side of stretching platform is fixed with left clamping tensile structure, and the front end of rear fixed frame on the right side of stretching platform is fixed with right clamping tensile structure. The utility model is suitable for the tensile of different sizes of composite fiber sound-absorbing cotton, and clamping is safe, stable and skidproof, which helps to ensure the neatness and stability of composite fiber sound-absorbing cotton during the stretching process, and is more efficient, stable and practical.
Owner:SAILEFU (LIANYUNGANG) COMPOSITE MATERIAL CO LTD

Composite submarine cable for offshore new energy

The invention relates to the technical field of cables, in particular to a composite submarine cable for offshore new energy. The plurality of inner sheath bodies are sequentially connected along the axial direction of the cable to form an inner sheath layer, and the plurality of groups of cable cores are arranged in the inner sheath bodies along the circumferential direction; the plurality of groups of connecting structures are clamped and embedded between two adjacent inner sheath bodies and are in axial limiting connection with the cable core, the stainless steel wire braid layer is arranged outside the inner sheath layer, and the outer sheath is arranged outside the stainless steel wire braid layer. The cable core and the inner sheath layer form an anti-torsion whole body in the circumferential direction, so that the anti-torsion performance of the cable is improved; the cable core, the inner sheath layer and the connecting structure are axially limited and connected to form a first layer of tensile structure, the tensile wire core located in the center of the cable is arranged to form a second layer of tensile structure, the stainless steel wire braided layer is arranged to form a third layer of tensile structure, and the tensile performance of the cable is greatly improved through the three layers of tensile structures.
Owner:ANHUI HUAJIN CABLE GROUP

Stretching equipment suitable for biodegradable film

The utility model discloses stretching equipment suitable for a biodegradable film. The stretching equipment comprises a fixed frame, a stretching structure and a transmission mechanism, the stretching structure is installed on the fixing frame and comprises a pair of transmission shafts, pulling idler wheels are fixed to the transmission shafts, a pair of rotating rods are rotationally connected to the fixing frame, and rotating idler wheels are fixed to the rotating rods; the transmission mechanism is installed on one side of the fixing frame and comprises a driving belt wheel, a fixing sleeve is fixed to one end of the rotating rod, a supporting wheel is installed on the fixing sleeve, a baffle is arranged on one side of the supporting wheel, a fixing bolt is installed between the baffle and the rotating rod, and the driving belt wheel and the supporting wheel are sleeved with a synchronous belt. Compared with the prior art, the biodegradable film stretching equipment disclosed by the utility model has the advantages that the rotating speed of the roller is changed by quickly replacing the transmission wheels with different sizes, so that the stretching strength of the stretching equipment on a biodegradable film can be changed, the time required by the stretching equipment for production is reduced, and the production efficiency of the biodegradable film is improved.
Owner:CHENGDU HUASHU YUNLIAN INFORMATION TECH CO LTD

Cable aging performance testing device and application method thereof

The invention discloses a cable aging performance test device and a use method thereof, and relates to the field of cable test.The cable aging performance test device comprises a test platform, a test box, a control screen, an industrial personal computer, a mounting structure, a rotating structure, a stretching structure and a limiting structure, the mounting structure is fixedly mounted on the upper surface of the test platform, and the mounting structure is arranged in the test box; the rotating structure is arranged on the mounting structure and is used for driving the mounting structure to rotate; the stretching structure is arranged on the mounting structure and is used for carrying out deformation stretching on the cable; the limiting structure is arranged on the rotating structure and used for limiting and fixing the rotating structure. A rotating block and a convex block rotate clockwise to push a rotating disc to rotate together, a cable is arranged on a mounting column in a surrounding mode, when the rotating block and the convex block rotate anticlockwise, a movable ring drives a connecting rod to rotate anticlockwise, a movable disc is pushed to rotate, a second movable groove extrudes and pushes a fixed column, and the cable is stretched and deformed.
Owner:NINGBO RIYUE ELECTRIC WIRE & CABLES MFG CO LTD

A high flame retardant jacketed cable

The utility model relates to cable technical field discloses a kind of high flame-retardant sheath cables, including cable main body, the tensile structure is arranged on the cable main body, the auxiliary mechanism is arranged on the tensile structure, the tensile structure includes insulating layer, the insulating layer is attached and connected in the side surface outer wall of cable main body, the insulating layer is attached and connected with tensile layer on the side outer wall of one side away from cable main body, the inner circle inner wall of tensile layer is fixedly connected with reinforcing steel wire, the side surface outer wall of tensile layer is attached and connected with reinforcing steel wire, the side surface outer wall of tensile layer is attached and connected with composite fiber yarn layer, the side outer wall of composite fiber yarn layer away from tensile layer is attached and connected with flame-retardant layer.In the utility model, the material of reinforcing steel wire is galvanized steel wire, which has high tensile strength, so that the flame-retardant layer continues to support and resist tension after burning and dissolving, preventing the cable from being easily damaged by its own tension.
Owner:DONGGUAN YUEMING WIRE & CABLE CO LTD

High-strength tensile galvanized steel strand

The utility model discloses a high-strength tensile galvanized steel strand which comprises a fixing sleeve, a steel strand is installed in an inner cavity of the fixing sleeve in a penetrating mode, a reinforcing core is arranged in the steel strand in a penetrating mode, a tensile composite layer is installed on the outer surface of the fixing sleeve in a sleeved mode, and the tensile composite layer comprises a tensile inner layer and a tensile outer layer. The outer surface of the tensile outer layer is sleeved with a protective layer, and the outer surface of the fixing sleeve is fixedly sleeved with the tensile inner layer. By using the fixing sleeve, the steel strand, the reinforcing core, the tensile composite layer and the protective layer and utilizing a multi-layer tensile structure, tensile protection can be effectively performed on the steel strand, so that the service life of the steel strand can be prolonged, normal use of the steel strand is ensured, flame-retardant, corrosion-resistant and wear-resistant protection can be performed on the steel strand, and the service life of the steel strand is prolonged. The steel strand cannot be completely combusted when encountering a fire disaster, cannot be corroded when encountering a corrosive environment, and cannot be abraded on the surface after being used for a long time.
Owner:DALIAN DISHENG TECHNOLOGY DEVELOPMENT CO LTD

A stent with auxetic structure

This invention discloses a thrombectomy stent with a tensile structure. The stent includes a self-expanding cut segment and a braided segment connected to the cut segment. The cut segment includes a tensile structure, which, when subjected to tension, causes the cut segment to expand radially. This invention solves the problem that existing thrombectomy stents, when subjected to tension and shrinkage, cannot completely remove thrombi from blood vessels.
Owner:SHANGHAI ENDOVAS MEDICAL TECH CO LTD

Composite steel belt splitting machine

The utility model provides a composite steel belt splitting machine which comprises a composite steel belt stretching structure, the composite steel belt stretching structure comprises a first lifting plate and a lifting frame, two ends of the lifting frame are provided with mounting holes, mounting strips are arranged in the mounting holes, and the mounting holes are connected with the mounting strips through bolts. The device is reasonable in design, and the composite steel strip stretching structure and the composite steel strip pressing and slitting structure which can synchronously and relatively move are matched with each other, so that the composite steel strip stretching structure can push the composite steel strip to move upwards to be in contact with the composite steel strip pressing and slitting structure; meanwhile, an arranged flat spiral spring drives a rotating strip to rotate, so that the rotating strip can push the loose composite steel strip, the composite steel strip can be stretched at the top of a rotating wheel, and the composite steel strip can be conveniently tensioned by a subsequent composite steel strip pressing and slitting structure; and the defects of burrs, wave-shaped notches or section layering and the like of the composite steel strip in the slitting process are avoided.
Owner:GUANGZHOU SHENLONG HEAVY IND MACHINERY

Sound energy collecting device by coupling nonlinear Helmholtz resonator and stretching structure

The invention relates to the technical field of sound energy collection, in particular to a sound energy collection device by coupling a nonlinear Helmholtz resonator and a stretching structure. According to the device, input sound pressure is amplified through the Helmholtz resonator, and the energy collection efficiency is improved by integrating the piezoelectric beam and the stretching structure. External noise is introduced into the noise input module of the acoustic barrier. The module is a cuboid, and a circular truncated cone cavity is dug in the cuboid. And then the incident sound wave enters the Helmholtz resonator, and the device amplifies the sound pressure through the acoustic resonance principle. The amplified sound pressure drives a piezoelectric beam with a stretching structure in the base structure to vibrate, and then kinetic energy is converted into electric energy through a direct piezoelectric effect (mechanical energy to electric energy). And then the electric energy is stored in a capacitor forming an energy storage module, so that power generation is realized.
Owner:SOUTHEAST UNIV

Stretcher

The utility model provides a stretcher, which relates to the technical field of sports equipment and comprises a support frame, a group of mounting holes are arranged at the bottom of the support frame, the mounting holes are of cylindrical structures, two sides of the support frame are respectively provided with a stabilizing frame, and a group of positioning structures are respectively arranged above each stabilizing frame. Each positioning structure is composed of a positioning rod, a positioning shell and a cover plate, and a stretching structure is installed between the two positioning structures. The stretcher combines multiple exercise modes of arm strength training, independent leg pressing and tendon stretching and passive leg stretching, different exercise requirements are met, the physical quality is comprehensively improved, for example, a user can enhance the upper limb strength through arm strength training, and the leg flexibility can be improved by means of leg pressing and tendon stretching actions.
Owner:Chaoyang Normal University