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91results about How to "Improve jumping ability" patented technology

Environmental thermoplastic PVC table tennis material and its preparation method of table tennis

An environmental thermoplastic PVC table tennis material comprises the following materials, by weight, 100 parts of polyvinyl chloride, 3-8 parts of a heat stabilizer, 1-5 parts of a lubricant, 10-30 parts of a reinforcing flexibilizer, 5-10 parts of a filling material, 0.1-0.2 part of a toner, 0.1-0.5 part of an anti-oxidant and 0.1-2 parts of an ultraviolet ray absorber. The preparation method of the environmental thermoplastic PVC table tennis comprises the following steps: firstly carrying out injection moulding to form two hemispheres, splicing the two hemispheres by the use of an adhesive to form a complete sphere, polishing, swelling in a die cavity to form a uniform table tennis, and carrying out aftertreatment to prepare a finished product ball. Thickness of the hemispheres, from top to bottom, is divided into five stages. The environmental thermoplastic PVC table tennis material has advantages of low cost, high hardness, excellent elastic modulus, good eccentricity and good environmental protection property, and can meet requirements of a game ball.
Owner:JIANGNAN UNIV +1

Motor drive-based robot vertical bounce mechanism

The invention relates to a motor drive-based robot vertical bounce mechanism and belongs to the technical field of bounce robots. The mechanism is characterized by comprising a base (8), an upper cover plate (2), a central motor (1), a central guide pillar (9), a central cylindrical cam (3), two ridge rods and two folding mechanisms, wherein the central cylindrical cam (3) is fixedly connected to an output shaft at the lower end of the central motor (1) and is matched with the central guide pillar (9) through a central blind hole; the two ridge rods are symmetrically fixed on corresponding side guide pillars (5) and are matched with a groove of the central cylindrical cam (3); and the folding mechanisms are hinged between the upper cover plate (2) and the base (8). A spiral groove on the outer surface of the central cylindrical cam is moved downwards under the exogenic action when the central cylindrical cam is rotated, a six-bar mechanism is driven to deform, the gravity of the mechanism is moved downwards, and an extension spring generates internal stress, so that the motor drive-based robot vertical bounce mechanism makes a robot bounced, and has a compact structure design and high movement reliability.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1

Hopping robot with wheel movement function

The invention discloses a hopping robot with a wheel movement function. The hopping robot with the wheel movement function comprises a robot body which is horizontally arranged, a wheel movement mechanism and a hopping mechanism, wherein the wheel movement mechanism is mounted in the robot body, and the hopping mechanism is mounted at an opening end of the robot body. A design of a front-back symmetric structure is used, and thus the fact that after the robot is landed, no matter the front face or the back face touches the ground, the robot can hop again is benefited, and the influence of landing turning to secondary hop is reduced; through the arc-shaped through hole structure design of protrusions with arc-shaped supporting holes arranged on the horizontal edges of the robot body, synchronous movement and asynchronous movement of two rolling wheels under the drive of a single electric motor are achieved; and by using wheel-type movement and the hopping function, the robot has multiple kinds of movement modes, by using the structure that a teeth-missing gear is meshed with a gear, instant unconstrained release of an energy storage component is achieved, and thus improvement of the hopping performance of the energy storage component is benefited. The hopping robot with the wheel movement function is taken as a moving carrier of an airborne instrument, after an airborne sensor is added to the hopping robot with the wheel movement function, the hopping robot with the wheel movement function can be used in the fields of environmental monitoring, urban counterterrorism, military reconnaissance, earthquake relief, science adventure and the like.
Owner:ZHEJIANG UNIV

Sole Structure With Magnetic Cushion

A sole structure with magnetic cushion includes an outsole; a midsole main body located on a top of the outsole and having a recess formed at a heel portion thereof; a magnetic cushion positioned in the recess of the midsole main body; a foam rubber layer located on a top of the midsole main body to sandwich the magnetic cushion between the foam rubber layer and the midsole main body; and an insole located on a top of the foam rubber layer for directly contacting with a user's foot. The magnetic cushion includes sequentially laminated first magnetic element, foam rubber spacer, and second magnetic element, and the first magnetic element and the second magnetic element are arranged with their poles of the same polarity facing toward each other, so that a magnetic repulsion is existed between the first and second magnetic elements to provide good buffering and cushioning effect.
Owner:CHANG KAI YU

Pneumatic muscle driving bionic frog bouncing leg mechanism employing dual-joint mechanism form

ActiveCN103241302ASolve the contradiction of large output force and short contraction strokeImprove jumping abilityVehiclesThighKnee Joint
The invention discloses a pneumatic muscle driving bionic frog bouncing leg mechanism employing a dual-joint mechanism form, and relates to a pneumatic muscle driving bionic frog bouncing leg mechanism. The bionic frog bouncing leg mechanism solves the problems that a bouncing leg of the existing bionic frog bouncing robot does not move flexibly, and is complicated in structure and poor in bouncing ability. The bionic frog bouncing leg mechanism is characterized in that a trunk body (1), a thigh body (2) and a crus body (3) adopt pneumatic muscles as drivers for stretching joints; the trunk body (1), the thigh body (2), the crus body (3) and a foot part (4) are rotationally connected by a hip joint (5), a knee joint (6) and an ankle joint (7); structures of the trunk body (1), the thigh body (2) and the crus body (3) are the same; and structures of the hip joint (5) and the knee joint (6) are the same. The bionic frog bouncing leg mechanism is applied to the bouncing robot.
Owner:HARBIN INST OF TECH

Dielectric electroactive polymer (EAP) driver-based vertical jumping mechanism of robot

The invention discloses a dielectric electroactive polymer (EAP) driver-based vertical jumping mechanism of a robot, which belongs to the technical field of jumping robots. The mechanism comprises a base (13), an upper cover plate (1), an EAP driver assembly, a central guide pillar (14), a central cylindrical cam (24), two bulged rods and two rod folding mechanisms, wherein the central cylindrical cam (24) is provided with a ratchet structure and a groove structure; the ratchet structure is matched with a pawl in the EAP driver assembly; the two bulged rods are symmetrically fixed on guide pillars (15) on corresponding sides and are matched with grooves of the central cylindrical cam (24); and the two rod folding mechanisms are hinged between the upper cover plate (1) and the base (13). In the mechanism, a dielectric EAP driver drives the central cylindrical cam to rotate unidirectionally through pawl and ratchet mechanisms, and the spiral grooves on the outer surface of the central cylindrical cam can simultaneously move downwards under the action of external force during the rotation of the central cylindrical cam, so that a six-rod mechanism is driven to deform and the center of gravity of the mechanism moves down; simultaneously, a spring is stretched to produce internal stress, so that the robot jumps; and the vertical jumping mechanism has a simple structural design and high movement reliability.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1

Quiet Bumper Plate

A disk shaped quiet bumper plate for a barbell has a rim of elastomeric material with a shock absorber region. The shock absorber region has a circumferential row of evenly spaced transverse holes. The material between the holes forms radial walls which act as shock absorbers when the bumper plate is dropped. This reduces noise without unduly increasing bounce.
Owner:SOUND SHORE INNOVATIONS L L C

Manufacturing technology of basketball

The invention relates to a manufacturing technology of a basketball. The manufacturing technology comprises the steps that firstly, a layer of yarn is wound on a basketball liner, then, the basketballliner is wrapped with rubber, a basketball liner workblank is formed, and vulcanization is not carried out; basketball skin pieces are bonded on the basketball liner workblank through heating and compression; and finally, vulcanization is carried out, so that the basketball skin pieces and the basketball liner workblank are bonded more firmly. The manufacturing technology has the beneficial effects that design of the basketball is reasonable, glue is not utilized, and the technology is more environmentally-friendly; vacuum package and transportation can be adopted, and transportation efficiency is improved; the basketball bounces higher, and rebound is more powerful; and bonding is firmer, and degumming and skin wrapping problems are avoided.
Owner:王冠华

Sewn ball and making process thereof

InactiveCN105797328AHigh strengthGuaranteed bounceHollow inflatable ballsYarnRaw rubber
The invention discloses a sewn ball which comprises an inner tube and an outer shell. The inner tube comprises an inner tube body, a yarn layer and a rubber layer. The yarn layer is attached to the outer surface of the inner tube body. The rubber layer is attached to the outer surface of the yarn layer. Then sulfidizing is carried out, raw rubber materials of the rubber layer permeate to yarn clearances of the yarn layer, the inner tube body, the yarn layer and the rubber layer are integrated, and the outer shell wraps and is attached to the inner tube. The sewn ball is good in leaping ability, high in strength, durable, small in circumference error, good in balance and stable in flying.
Owner:TONGCHENG HUILONG SPORTS PROD

LDMOS device capable of improving rebound performance and manufacturing method thereof

InactiveCN101819997AImprove bounce performanceImproved bounce performanceSemiconductor/solid-state device manufacturingSemiconductor devicesLDMOSEngineering
The invention discloses an LDMOS device capable of improving rebound performance and a manufacturing method thereof. In the prior art, the LDMOS device has poor rebound performance because a low doping concentration of a high-voltage trap needs to be maintained to ensure that the LDMOS device has a high breakdown voltage. The LDMOS device capable of improving the rebound performance of the invention comprises a silicon substrate, a high-voltage trap, a source, a source drift region, a drain, a drain drift region, a gate and a side wall thereof; the LDMOS device also comprises a relieving block which is arranged in the high-voltage trap and is adjacent to the source drift region; and the relieving block has the same doping type as the high-voltage trap and has a higher impurity concentration than the high-voltage trap. Due to the arrangement of the relieving block, the LDMOS device can effectively reduce the base resistance of a parasitic BJT in the LDMOS device without changing the impurity concentration of the high-voltage trap, thereby effectively improving the maximum working voltage of the LDMOS device and improving the rebound performance of the LDMOS device.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

Movement posture adjusting device for hopping robots

The invention discloses a movement posture adjusting device for hopping robots. The movement posture adjusting device comprises a thigh, a thigh assistance leg and a shank, the thigh is hinged to a first position of the shank, and the thigh assistance leg is hinged to a second position of the shank. The movement posture adjusting device is characterized by further comprising a lead screw driving mechanism and a rod leg, wherein the lead screw driving mechanism is used for adjusting the included angle between the thigh and the thigh assistance leg or adjusting the first position and the second position on the shank synchronously, and the rod leg is connected to the second position of the shank, swings in the plane perpendicular to the plane where the thigh and the thigh assistance leg are located and is used for resetting. The movement posture adjusting device comprises an expanded self-resetting and continuous course adjusting mechanism and a hopping height and distance adjusting mechanism based on structure parameters. Through cooperation of the mechanisms, the practicality of the micro hopping robots can be remarkably improved.
Owner:SOUTHEAST UNIV

Shoe pad capable of balancing pressure of sole

ActiveCN101849727APressure Protection and BalanceIncrease elasticityInsolesSurface layerEngineering
The invention discloses a shoe pad capable of balancing the pressure of a sole, which comprises a shoe pad surface layer, a shoe pad main body and a function layer, wherein the shoe pad surface layer is pasted at the upper surface of the shoe pad main body; the function layer comprises a front sole energy feedback elastic block, an arch half moon-shaped supporting block and a heel cushioning block which are arranged at the lower surface of the shoe pad main body; the front sole energy feedback elastic block is pasted at the front sole of the shoe pad; the arch half moon-shaped supporting block is pasted at the arch; and the heel cushioning block is pasted at the heel. As the lower surface of the shoe pad main body is provided with the front sole energy feedback elastic block, the arch half moon-shaped supporting block and the heel cushioning block of the function layer, wherein the front sole energy feedback elastic block has a better elastic restoring force to be capable of assisting to enhance the springing ability of a user, the arch half moon-shaped supporting block can effectively increase the contact area between the shoe pad and the sole, and the heel cushioning block has the function of cushioning to be capable of protecting the heel and leading the heel to be hardly damaged, so that shoe pad synthesizes the structure to be capable of protecting the sole and balancing the pressure of the sole.
Owner:ZHEJIANG RED DRAGONFLY FOOTWEAR

Foam basketball production method and foam basketball

The invention discloses a foam basketball production method and a foam basketball thereof. The method includes the steps of producing an inner tube, producing a wrap yarn layer and producing an outer skin layer. The produced foam basketball comprises the inner spherical tube, the wrap yarn layer and the outer skin layer which are laminated in sequence from inside to outside, delaminating liquid is brushed on the outer surface of the inner tube, and the wrap yarn layer is connected with the outer surface, brushed with the delaminating liquid, of the inner tube in a wrapped manner. Air tightness, bounce and strength of the foam basketball are all higher than those of similar products.
Owner:NANJING QUNLI SPORTS EQUIP

Quiet bumper plate

A disk shaped quiet bumper plate for a barbell has a rim of elastomeric material with a shock absorber region. The shock absorber region has a circumferential row of evenly spaced transverse holes. The material between the holes forms radial walls which act as shock absorbers when the bumper plate is dropped. This reduces noise without unduly increasing bounce.
Owner:SOUND SHORE INNOVATIONS L L C

Bounce shoe

The invention relates to the field of sports goods, in particular to a bounce shoe. The bounce shoe is characterized in that when the gravity center of a supporting foot falls onto the bounce shoe, a heel plastic steel plate 1 buffers impulse of human gravity to the ground and produces elastic deformation, the acting force is transferred to an S-shaped plastic steel plate arch part 2 connected with the heel plastic steel plate 1, the S-shaped plastic steel plate arch part 2 produces maximum elastic deformation together with gradual forward shift of the human gravity center, the acting force is transferred to a front sole plastic steel plate 3, the front sole plastic steel plate 3 produces elastic deformation, and the reacting force is transferred to a non-slip plastic wrapped steel plate 4 to push the supporting foot of human body to quickly bounce away the ground, so that the bounce shoe increases the bounce force.
Owner:苟小平

Foaming basketball inner tube

The invention discloses a foaming basketball inner tube. The inner tube is prepared by a colloid which is subjected to mixing, discharging sheet, splicing molding, and shaping by vulcanization processing. The colloid accounts for 0.35 of the outer skin, wherein the colloid comprises 25-40 phr of smoked offset print, 75-80 phr of a butyl rubber, 30-40 phr of carbon black, 22-28 phr of light calcium, 40-45 phr of activated calcium, 15-20 phr of a talcum powder, 8-10 phr of oil, 5-7 phr of zinc oxide, 0.8-1.1 phr of stearic acid, 1-2 phr of an antioxidant, 1-1.3 phr of wax, 2.4-2.6 phr of sulphur and 4-5 phr of an accelerant. The foaming basketball inner tube provided by the invention is better than the same kind products in gas tightness, bounce performance and intensity.
Owner:NANJING QUNLI SPORTS EQUIP

Frogging mechanical exoskeleton system with energy recycling function and frogging method thereof

The invention provides a frogging mechanical exoskeleton system with an energy recycling function and a frogging method of the frogging mechanical exoskeleton system. The problems that few exoskeletons for improving unilateralathletic ability are provided and existing mechanical exoskeletons are large in energy consumption, high in weight and poor in stability and flexibility exist in the prior art. The frogging mechanical exoskeleton system with the energy recycling function comprises a first fixing portion, a second fixing portion and a third fixing portion, wherein a user wears the first fixing portion, the second fixing portion and the third fixing portion from the thigh to the foot sole. The first fixing portion and the second fixing portion are integrally formed. The frogging mechanical exoskeleton system further comprises a gas pump, a gas storage bottle, a pneumatic muscle, a foot sole gas recycling gas bag, a first gas conveying pipe, a first one-way valve, a second gas conveying pipe, a second one-way valve, a third gas conveying pipe, an electromagnetic valve, a first pressure sensor, an attitude sensor and a controller. The frogging mechanical exoskeleton system is simple in structure and convenient to use, has the energy recycling function, and is small in energy consumption, safe, environmentally friendly and good in stability and flexibility.
Owner:HANGZHOU ROBOCT TECH DEV CO LTD

Sole and shoe made by same

The invention relates to a sole and a shoe made by the same, relating to the technical field of shoe products. The sole comprises a sole main body, the toe part of the front end of the sole main body is provided with five toe grooves matched with toes in shape; and a partition board is arranged between two adjacent toe grooves, extends from a toe puff part positioned between the two adjacent toe grooves to the toe part and is closely connected with the two adjacent toe grooves. The shoe made by the sole is characterized in that the toe part of the front end of the sole main body is provided with a vamp; a cavity formed by the sole main body and the vamp is internally provided with five toe grooves matched with the toes; fillers are arranged between the toe grooves and the vamp; and the peripheral side of the sole main body is provided with a shoe stretcher. The invention can be adapted to the structures of the toes, plays a role of correcting five toe deformation and promotes the healthy growth of human bodies.
Owner:罗金林

Multifunctional insole

ActiveCN103876391AImprove breathabilityNot prone to odorInsolesCold airEngineering
A multifunctional insole is mainly provided with an insole body for the human foot to tread on, a hollow upheaval part integrally heaving up to the top face of the insole body from the bottom face of the insole body is formed on the insole body, and an air chamber is formed below the hollow upheaval part. Because the air chamber of the hollow upheaval part can deform between the stressed state and the relaxed state, hot air in the air chamber can be discharged, cold air can be sucked into the air chamber, and thus air convection in a shoe can be improved; the human foot and the shoe can be tightly attached to each other through the hollow upheaval part of the insole body, and thus the slip stopping function can be achieved.
Owner:郑贤雄

Hopping robot hopping mechanism based on energy meshing conversion

ActiveCN110304166AImprove energy conversion efficiencySolve the low energy conversion efficiencyVehiclesElectric machineryDrive motor
The invention discloses a hopping robot hopping mechanism based on energy meshing conversion. The hopping robot hopping mechanism based on energy meshing conversion comprises a main body bracket and an energy conversion mechanism; the energy conversion mechanism comprises a driving motor, a transmission unit and two groups of energy conversion hopping units; the two energy conversion hopping unitsare correspondingly positioned on the two sides of the exterior of the main body bracket; each energy conversion hopping unit comprises a driving non-circular gear, a driven non-circular gear, a circular gear, a rack, an elastic component and a sole; the driven non-circular gears are meshed with the driving non-circular gears; the circular gears and the driven non-circular gears are coaxially arranged; the lower ends of the racks are fixed on the soles; the circular gears are meshed with the racks; the lower ends of the elastic components are arranged on the soles; and the elastic componentscomprise springs. The hopping robot hopping mechanism based on energy meshing conversion has the advantages of high energy conversion efficiency, high motor utilization rate, high hopping performanceand the like.
Owner:NANJING INST OF TECH

Soft bouncing robot capable of rapidly releasing and recovering energy, and method thereof

The invention discloses a soft bouncing robot capable of rapidly releasing and recovering energy, and a method thereof. A main body is arranged in a shell, an energy storage part is arranged at one end of the main body, the energy storage part is used for converting input mechanical energy into elastic energy to be stored so as to realize bouncing of the bouncing robot, and a foot part is arrangedat the other end of the energy storage part; a gravity center control part is arranged at the other end of the main body, and the gravity center of the gravity center control part coincides with thegravity center of the energy storage part in the vertical direction and used for controlling the bouncing robot to incline in the fixed direction to generate a fixed bouncing angle; an energy collection part and an energy release part are arranged outside the energy storage part, and the energy collection part is used for controlling the main body and the feet to move oppositely; and the energy release part is used for releasing the constraint between the main body and the foot part and releasing the elastic energy stored in the energy storage part. The bouncing robot is compact in structure,easy to control, stable and reliable.
Owner:XI AN JIAOTONG UNIV

Intelligent massage sneakers with high-elasticity facades

The invention discloses intelligent massage sneakers with high-elasticity facades. Each sneaker comprises a sneaker body, a thickened heel is arranged on each sneaker body, and an inflatable massage cushion is arranged in each sneaker body; a notch is formed in the bottom of each thickened heel, and an embedded block is arranged in the corresponding notch; an intelligent inflating structure is arranged on the bottom of each embedded block; an air charging and discharging control valve is arranged at the rear end of each thickened heel; each air charging and discharging control valve and the corresponding intelligent inflating structure are connected through a pipeline; each inflatable massage cushion is connected with the corresponding air charging and discharging control valve. The invention aims to provide the intelligent massage sneakers with the high-elasticity facades. According to the sneakers, wearing is comfortable, and intelligent air charging can be achieved; meanwhile, the massage intensity can be adjusted, not only can massage be conducted, but the exercise requirements are met, and accordingly the sneakers greatly facilitate lives of people.
Owner:湖南生生健康科技发展有限公司

Multifunctional pneumatic device of air guiding-type automatic machine

The invention discloses a multifunctional pneumatic device of an air guiding-type automatic machine. The multifunctional pneumatic device of the air guiding-type automatic machine comprises a cylinder, a limiting pin, an air valve and a piston, wherein the air valve and the piston are both arranged in the cylinder; the air valve is located between the bottom of the cylinder and the piston and is used for partitioning the space between the piston and the bottom of the cylinder into two cavities; the limiting pin penetrates through the cylinder and the air valve in the radial direction and is used for limiting axial movement of the air valve; an air guiding hole is formed in the bottom of the cylinder and is used for enabling an air chamber in the cylinder to communicate with an air guidinghole in an acting object; when high-pressure air enters the bottom of the cylinder, the air valve is pushed to move towards the piston side and opens an air path to enable the cavity between the air valve and the piston to communicate with the air guiding hole; when the pressure of the acting object is decreased, the air valve moves towards the bottom of the cylinder under the effect of air in thecylinder to close the air path; and when the piston reversely moves to push the air valve, the air path is opened to enable the cavity between the air valve and the piston to communicate with the airguiding hole. The multifunctional pneumatic device of the air guiding-type automatic machine has a buffering function and a rebound reducing function.
Owner:NANJING UNIV OF SCI & TECH

A high-elastic intelligent inflatable breathing dynamic massage sports shoes

The invention discloses high-elasticity smart inflation breathable dynamic massage sneakers. Each sneaker includes a sneaker body, thickened heels are arranged on the sneaker bodies, and inflation massage mats are arranged in the sneaker bodies; notches are formed in the bottoms of the thickened heels, and embedded blocks are arranged in the notches; smart inflation structures are arranged at thebottom of the embedded blocks; inflation-deflation control valves are arranged at the rear ends of the thickened heels; the inflation-deflation control valves and smart inflation structures are connected through pipelines; the inflation massage mats are connected with the inflation-deflation control valves. The purpose of providing the high-elasticity smart inflation breathable dynamic massage sneakers is achieved; the high-elasticity smart inflation breathable dynamic massage sneakers are comfortable to wear, smart inflation can be achieved, and meanwhile, massage strength can be adjusted; when massage is carried out, the requirements of exercise are met, and therefore great convenience is brought to people's life.
Owner:湖南生生健康科技发展有限公司

A cheerleading strength training device

The invention discloses a cheerleading strength training instrument, and relates to the field of athlete training devices. The cheerleading strength training instrument comprises a base. Support legsare arranged at the bottom of the base, a first fixing pipe is arranged on the rear side of the top of the base, a first slide rod is arranged in the first fixing pipe, a first adjusting bolt is arranged on a side of the first fixing pipe, an end of the first adjusting bolt penetrates the pipe wall of the first fixing pipe to be in contact with the first slide rod, first connecting plates are arranged on two sides of the first fixing pipe, first rolling wheels are arranged at the fronts of the first connecting plates and are fixedly connected with the base, grooves are formed in the base, arecommunicated with the front end of the base and are particularly formed in the fronts of the first rolling wheels, first elastic pull ropes are arranged on the first connecting plates, an end of eachsecond elastic pull rope is fixedly connected with a connecting block, and a pull ring is arranged at the end, which is close to an end of a fixing rod, of each second elastic pull rope. The cheerleading strength training instrument has the advantages that the leg strength and the arm strength of cheerleading athletes can be effectively enhanced by the cheerleading strength training instrument, and the training efficiency can be improved by the cheerleading strength training instrument.
Owner:XUCHANG UNIV

Bounce ability training method for physical training

The invention discloses a bounce ability training method for physical training. The bounce ability training method is realized based on a bounce ability training device. The bounce ability training device comprises a bottom plate, a fixed frame with the bottom fixed to the top of the bottom plate, and two pedal structures connected to the two sides of the front surface of the fixed frame in a sliding manner respectively, wherein each pedal structure comprises a moving plate; and the back surface of each moving plate penetrates through the fixed frame and extends to the back surface of the fixed frame. The invention relates to the technical field of physical training. According to the bounce ability training method for physical training, the explosive leg strength of training personnel canbe sufficiently trained, so that the explosive leg strength of the training personnel can be improved, and the bounce ability of the training personnel is improved; and the safety is high, so that thesafety during training is guaranteed while the bounce ability of the training personnel is trained, and the legs of the training personnel during training are prevented from being injured.
Owner:吴珠才

A kind of pulse tapping microball bouncing device

The invention provides an impulsive knock microsphere bouncing device for uniform coating treatment on the surfaces of microspheres. The device comprises an impulsive knock generator and a knocked screen disk assembly. The core part of the impulsive knock generator is an electromagnetic box consisting of electromagnetic assemblies, series impulsive knock with adjustable knock strength and frequency can be generated to act on the knocked screen disk assembly with the microspheres, and the microspheres periodically and instantly bounce between small grids of a screen disk because of the excitation of the series impulsive knock. According to the impulsive knock microsphere bouncing device, contact and collision between the microspheres and a disk body and between the microspheres are effectively reduced and avoided, the mechanical damage to the surfaces of the microspheres caused by movement is reduced to a low level, and the surface quality of microsphere coatings is greatly improved under the condition of no influence on coating uniformity.
Owner:LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS

Sewed type sport ball and manufacturing method for inner container thereof

The invention discloses a sewed type sport ball which is characterized in that an inner container which is made from polyvinyl chloride is adopted. The invention further discloses a manufacturing method of the inner container of the sewed type sport ball. The method includes in sequence the following steps: step1: mixing raw materials according to a formula and evenly stirring the raw materials in a high-speed stirring bucket; step 2: thoroughly removing bubbles inside the mixed materials through a vacuum defoaming machine; step 3: injecting the defoamed mixed materials into a ball-shaped die through a charging machine, then, conducting heating rolling solidification forming for 3 minutes to 10 minutes in a rotary furnace with a temperature of 200 DEG C to 300 DEG C; and step 4: drawing the inner container out of the die after the die is drawn out of the furnace and is cooled in warm water the temperature is below 100 DEG C, pressing the inner container into a valve core within one minute, then, naturally cooling the inner valve core to a normal temperature after aeration forming is conducted in a standard bladder die. The sewed type sport ball is not only good in air impermeability and bounce capability, but also low in recycle cost, causes no secondary pollution to the environment and is simple in manufacturing process and low in energy consumption.
Owner:许乃红
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