CN109939430A - A kind of badminton service robot - Google Patents
A kind of badminton service robot Download PDFInfo
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- CN109939430A CN109939430A CN201910193643.5A CN201910193643A CN109939430A CN 109939430 A CN109939430 A CN 109939430A CN 201910193643 A CN201910193643 A CN 201910193643A CN 109939430 A CN109939430 A CN 109939430A
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- 230000001939 inductive effect Effects 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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Abstract
The present invention relates to shuttlecock equipment technical fields, more particularly to a kind of badminton service robot, including shell, ball storage barrel, ball serving device and steering base, the ball storage barrel is arranged on shell, the ball serving device is arranged in shell, and the steering base is arranged in housing bottom;There is the emission port for accommodating ball serving device on the shell;The ball serving device includes adjusting component and emitting module, and the adjusting component includes adjustable plate and adjusts motor, and the adjusting motor drives the adjustable plate rotation to adjust launch angle, and the emitting module is arranged on adjustable plate;The steering base drives shell that horizontal direction rotation occurs;The present invention is by the way that emitting module to be set on adjustable plate, adjustable plate rotation is driven by adjusting motor, to realize the adjustability that badminton service robot goes out ball angle, fuselage rotary motion or swing are realized by steering base, to allow the drop point of service covered court ground any position.
Description
Technical field
The present invention relates to shuttlecock equipment technical fields, and in particular to a kind of badminton service robot.
Background technique
With the improvement of material living standards, people increasingly pay attention to the quality of life.Movement is as a kind of green according to investigations
Color consumption is shared that ratio is in continuous upward trend in people's current consumption.Nationwide fitness programs upsurge will grow in intensity,
The market demand of fitness equipment also can constantly expand.
In China, badminton is a very universal movement, deeper to be liked by teen-age.Shuttlecock is served a ball at present
The type of machine is also fewer, it should have very big development space.
At present there are three types of the already present service robot types in China: the first be with the special sending of flicking of motor whipping, this
A kind of batting principle with us, but angle is limited, and the course of action that can be imitated is few, is generally used for choosing for shuttlecock factory
The step of ball is fast, chooses flight;Second of impact bulb issues;The third is the mechanical arm folder bulb of current national team
High speed is thrown out, and machine is very heavy while volume is also very big.It needs three meters high of bracket to support, route of killing, valence can be imitated out
Lattice are also somewhat expensive;4th kind is emitted with high pressure gas blowout shuttlecock.Current these types of badminton service robot, second, third
Kind, the 4th kind of badminton service robot can only adjust course of action by adjusting serve speed and service mechanical force or air pressure, not do
Method realizes the multi-angle service without dead angle, and height adjustment is inconvenient, mobile inconvenient.
Summary of the invention
The technical problems to be solved by the present invention are: providing shuttlecock that is a kind of small in size and can be realized multi-angle service
Service robot.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of badminton service robot, including shell, ball storage barrel, ball serving device and steering base, the ball storage barrel are arranged in shell
On body, the ball serving device is arranged in shell, and the steering base is arranged in housing bottom;Have on the shell and accommodates service
The emission port of device;
Opening is provided with below the ball storage barrel, the ball serving device is located at below the opening of ball storage barrel;
The ball serving device includes adjusting component and emitting module, and the adjustings component includes adjustable plate and adjusting motor,
The adjusting motor drives the adjustable plate rotation to adjust launch angle, and the emitting module is arranged on adjustable plate;
The steering base drives shell that horizontal direction rotation occurs.
The beneficial effects of the present invention are: by the way that emitting module to be set on adjustable plate, tune is driven by adjusting motor
Plate rotation is saved, so that realizing badminton service robot goes out the adjustability of ball angle, to realize high clear, drive, kill
Different service modes realize fuselage rotary motion or swing by steering base, to allow the covered feather of the drop point of service
Court ground any position, while ball angle is single and cause the movement of trainer mechanical out when also avoiding training, and also avoids
Mechanical action causes to damage to muscle;Badminton service robot structure of the invention is simple, and amount of parts is few, so that cost drops
Low, volume is smaller, and weight is lower, while side also being facilitated to transport.
Detailed description of the invention
Fig. 1 is a kind of side view of badminton service robot of the specific embodiment of the invention;
Fig. 2 is a kind of ball storage barrel of badminton service robot of the specific embodiment of the invention and the solid of ball cylinder base portion
View;
Fig. 3 is a kind of structural schematic diagram for taking ball device of badminton service robot of the specific embodiment of the invention;
Fig. 4 is a kind of structural schematic diagram of the ball serving device of badminton service robot of the specific embodiment of the invention;
Label declaration: 1, shell;2, ball storage barrel;3, ball serving device;31, adjustable plate;311, adjustable side;312, connecting pin;
313, fulcrum;32, motor is adjusted;33, serving wheel;34, adjusting gear rack;35, gear;4, steering base;5, support base;6, ball
Cylinder pedestal;61, extensional pipeline;7, ball device is taken;71, vertical motion assemblies;711, screw rod;712, fixed column;713, platform;
72, component is moved horizontally;73, clamp assemblies;731, clamping part.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
Please refer to Fig. 1 to Fig. 4, a kind of badminton service robot, including shell 1, ball storage barrel 2, ball serving device 3 and steering base 4
The ball storage barrel 2 is arranged on shell 1, and the ball serving device 3 is arranged in shell 1, and the steering base is arranged at 1 bottom of shell
Portion;There is the emission port for accommodating ball serving device 3 on the shell 1;
Opening is provided with below the ball storage barrel 2, the ball serving device 3 is located at below the opening of ball storage barrel 2;
The ball serving device 3 includes adjusting component and emitting module, and the adjusting component includes adjustable plate 31 and adjusts electric
Machine 32, the adjusting motor 32 drive the rotation of adjustable plate 31 to adjust launch angle, and the emitting module is arranged in adjustable plate
On 31;
The steering base 4 drives shell 1 that horizontal direction rotation occurs.
As can be seen from the above description, the beneficial effects of the present invention are: by the way that emitting module is set on adjustable plate 31,
Adjustable plate 31 is driven to rotate by adjusting motor 32, so that the adjustability that badminton service robot goes out ball angle is realized, thus real
Existing high clear, drive, the different service modes such as kill, realize fuselage rotary motion or swing by steering base 4, thus
Ball angle is single and cause to instruct out when allowing the drop point of service covered court ground any position, while also avoiding training
The movement for practicing personnel is mechanical, also mechanical action is avoided to cause to damage to muscle;Badminton service robot structure of the invention is simple, and zero
Number of components is few, so that cost reduces, volume is smaller, and weight is lower, while side also being facilitated to transport.
Further, the badminton service robot further includes being arranged in shell 1 to take ball device 7,
It is described that ball device 7 is taken to include vertical motion assemblies 71, move horizontally component 72 and clamp assemblies 73, the vertical shifting
Dynamic component 71 drives clamp assemblies 73 to move vertically, and the clamp assemblies 73 are located at below the opening of ball storage barrel 2, the level
Moving assembly 72 is located at the lower section of clamp assemblies 73;
The emitting module be located at move horizontally component 72 it is mobile when end.
Further, the vertical motion assemblies are 711 component of ball screw, and 711 component of ball screw includes silk
Bar 711, fixed column 712 and platform 713, the screw rod 711 are arranged in parallel with fixed column 712;The platform 713 is movably connected in
It screw rod 711 and fixes, the rotation of the screw rod 711 band moving platform 713 vertically moves.
As can be seen from the above description, passing through the use of 711 component of ball screw, there is positioning accuracy height, high life, low pollution
The characteristics such as the transmission and transformation transmission just reverse with that can do high speed, promote service precision.
Further, the clamp assemblies 73 are located on platform 713, and the clamp assemblies 73 include clamping motor and two
The clamping part 731 of mirror settings, the clamping motor drive clamping part 731 to move, and the clamping part 731 includes towards another folder
The clamping face in portion 731 is held, is arranged fluted on the clamping face, multiple latches are provided in the groove.
As can be seen from the above description, can be realized the clamping to shuttlecock by the effect of latch, conveniently taking ball.
Further, the badminton service robot further includes height-adjustable support base 5, and the support base, which is located at, to be turned to
4 bottoms of seat, the steering base include steering motor and worm and gear component, and the steering motor drives the worm and gear component
It moves and then drives shell that horizontal direction rotation occurs.
As can be seen from the above description, can be realized badminton service robot different height by height-adjustable support base 5
Service;Transmission is realized by the kind of drive of worm and gear, can be turned to and be realized certainly when doing no motion of by worm and gear
Lock, prevents service robot from swinging at work, and badminton service robot is caused also to be followed swing by inertia or so, is promoted steady
It is qualitative.
Further, the adjustable plate 31 includes the fulcrum of adjustable side 311, connecting pin 312 and adjustable side 311 and end
313, the fulcrum 313 is rotatably connected in shell 1, has adjusting gear rack 34, the adjusting motor on the adjustable side 311
There is gear 35, the gear 35 drives adjustable plate 31 to rotate around fulcrum 313 with rack gear cooperation on 32 output shaft.
Further, the emitting module is connected on connecting pin 312, and the emitting module includes two by transmitting motor
The serving wheel 33 of driving, two serving wheels 33 are arranged in parallel, and have on the connecting pin 312 and are located at two serving wheels
33 opening.
Further, the serving wheel 33 with a thickness of 15mm~30mm;The external diametrical extent of the serving wheel 33 is 76mm
~78mm;The serving wheel 33 has the inner hole connecting with transmitting motor, and the inner hole aperture is 8mm~10mm;The service
The hardness of wheel 33 is shore hardness 45~85;The center of two serving wheels 33 is away from for 92mm~100mm.
As can be seen from the above description, the range for passing through thickness is the drop point that 15mm~30mm will lead to service lower than this numerical value
Accuracy is not high, this numerical value of height will lead to that motor load is overweight, thus cannot the different drop point of free switching;Outer diameter model
It is insufficient to enclose that be 76mm~78mm lower than this numerical value will lead to service dynamics, will lead to service robot card ball etc. higher than this numerical value therefore
Barrier.Internal orifice dimension range is 8mm~10mm, insufficient lower than the rotational stability that this numerical value will lead to serving wheel 33.Highly this
Vibration when numerical value will lead to motor high-speed rotation is excessive.The range of hardness is shore hardness 45~85, is lower than this numerical value meeting
Cause service placement deviation larger, it is larger to the damage of shuttlecock to will lead to service robot higher than this numerical value.33 center of serving wheel
It needs away from range in 92mm~100mm;It will lead to the failures such as service robot card ball lower than this numerical value, will lead to higher than this numerical value
Service placement deviation is big.
Further, the badminton service robot further includes ball cylinder pedestal 6;The ball cylinder pedestal 6 include rotary components and
Inductive component, the rotary components include rotating seat and rotating electric machine, and multiple opening with ball storage barrel 2 are offered on the rotating seat
The utensil receiving opening that mouth is connected, the rotating electric machine drive the rotating seat rotation, are provided with ball mouth below the rotating seat;
The inductive component includes inductor and controller, whether has shuttlecock, institute in the inductor induction ball mouth
It states controller and obtains sensor data to control the rotation of rotating electric machine.
As can be seen from the above description, whether having shuttlecock in the inductor induction ball mouth, if so, rotating electric machine can stop
Rotation stop is dynamic, so that badminton service robot be allowed persistently to serve a ball, when the ball of a ball storage barrel 2 is all using completion, inductor be will do it
Then judgement controls rotating electric machine rotation, drive rotating seat rotation, and then replace different ball storage barrels 2, thus switch to next
A ball storage barrel 2 for having ball, thereby realizes the purpose continued to serve;By the setting of rotary components, it can be realized multiple storages
Ball cylinder 2 is applied in combination, and is used to store shuttlecock, and 2 quantity of ball storage barrel is adjustable, can store the shuttlecock of different number.
Further, extensional pipeline 61, the radius of the internal diameter of the extensional pipeline 61 are provided with below the ball mouth
For 73mm~76mm, the end of the extensional pipeline 61 is provided with snap ring, the minimum position internal diameter of the snap ring be 47mm~
49mm。
As can be seen from the above description, being 73mm~76mm by the radius of the internal diameter of extensional pipeline 61, it is lower than this numerical value meeting
Cause shuttlecock that cannot smoothly fall, it is larger to will lead to the left and right offset amplitude that shuttlecock is fallen higher than this numerical value;Pass through
The snap ring can prevent shuttlecock from falling down, and the minimum position internal diameter of snap ring needs to control in 47mm~49mm.More than this
A numerical value will lead to multiple shuttlecocks while fall, and will lead to service robot fuselage lower than this numerical value and takes ball difficult.
Embodiment one
A kind of badminton service robot, including shell, ball storage barrel, ball serving device and steering base, the ball storage barrel are arranged in shell
On body, the ball serving device is arranged in shell, and the steering base is arranged in housing bottom;Have on the shell and accommodates service
The emission port of device;
Opening is provided with below the ball storage barrel, the ball serving device is located at below the opening of ball storage barrel;
The ball serving device includes adjusting component and emitting module, and the adjustings component includes adjustable plate and adjusting motor,
The adjusting motor drives the adjustable plate rotation to adjust launch angle, and the emitting module is arranged on adjustable plate;
The steering base drives shell that horizontal direction rotation occurs.
The utility model has the advantages that adjustable plate rotation is driven by adjusting motor by the way that emitting module to be set on adjustable plate, thus
It realizes badminton service robot and goes out the adjustability of ball angle, thus the different service modes such as realize high clear, drive, kill,
Fuselage rotary motion or swing are realized by steering base, to allow the covered court of the drop point of service any position on the ground
Ball angle is single and cause the movement of trainer mechanical out when setting, while also avoiding training, and also avoids mechanical action to muscle
It causes to damage;Badminton service robot structure of the invention is simple, and amount of parts is few, so that cost reduces, volume is smaller, weight
It is lower, while side also being facilitated to transport.
The badminton service robot further includes that setting takes ball device shell is intracorporal,
It is described that ball device is taken to include vertical motion assemblies, move horizontally component and clamp assemblies, the vertical motion assemblies
Clamp assemblies vertical movement is driven, the clamp assemblies are located at below the opening of ball storage barrel, and the component that moves horizontally is located at folder
Hold the lower section of component;
The emitting module be located at move horizontally component it is mobile when end.
The vertical motion assemblies are ball screw component, and the ball screw component includes screw rod, fixed column and platform,
The screw rod is arranged in parallel with fixed column;The platform activity is connected to screw rod and fixes, and the screw rod rotation drives flat
Platform vertically moves.The clamp assemblies are located on platform, and the clamp assemblies include the folder for clamping motor and two mirror settings
Portion is held, the clamping motor drives clamping part movement, and the clamping part includes towards the clamping face of another clamping part, the clamping
It is arranged fluted on face, multiple latches is provided in the groove.
The badminton service robot further includes height-adjustable support base, and the support base is located at steering base bottom, institute
Stating steering base includes steering motor and worm and gear component, and the steering motor drives the worm and gear component movement and then band
Horizontal direction rotation occurs for dynamic shell.
The adjustable plate includes the fulcrum at adjustable side, connecting pin and adjustable side and end, and the fulcrum is rotatably connected on
In shell, there is adjusting gear rack on the adjustable side, there is gear, the wheel and rack on the output shaft for adjusting motor
Cooperation drives adjustable plate to rotate around fulcrum.
The emitting module is connected on connecting pin, and the emitting module includes two by emitting motor-driven service
Wheel, two serving wheels are arranged in parallel, and have the opening positioned at two serving wheels on the connecting pin.The serving wheel
With a thickness of 25mm;The external diametrical extent of the serving wheel is 77mm;The serving wheel has the inner hole connecting with transmitting motor, institute
Stating inner hole aperture is 9mm;The hardness of the serving wheel is shore hardness 65;The center of two serving wheels is away from for 96mm.
The badminton service robot further includes ball cylinder pedestal;The ball cylinder pedestal includes rotary components and inductive component, institute
Stating rotary components includes rotating seat and rotating electric machine, and multiple appearances being connected with the opening of ball storage barrel are offered on the rotating seat
Na Kou, the rotating electric machine drive the rotating seat rotation, are provided with ball mouth below the rotating seat;
The inductive component includes inductor and controller, whether has shuttlecock, institute in the inductor induction ball mouth
It states controller and obtains sensor data to control the rotation of rotating electric machine.
Extensional pipeline is provided with below the ball mouth, the radius of the internal diameter of the extensional pipeline is 75mm, described to prolong
The end for stretching pipeline is provided with snap ring, and the minimum position internal diameter of the snap ring is 48mm.
In conclusion a kind of badminton service robot provided by the invention is led to by the way that emitting module to be set on adjustable plate
It overregulates motor and drives adjustable plate rotation, so that realizing badminton service robot goes out the adjustability of ball angle, to realize farsighted
Ball, drive, the different service modes such as kill, realize fuselage rotary motion or swing by steering base, to allow service
Drop point covered court ground any position, while ball angle is single and cause trainer's out when also avoiding training
Movement is mechanical, also mechanical action is avoided to cause to damage to muscle;Badminton service robot structure of the invention is simple, amount of parts
Few, so that cost reduces, volume is smaller, and weight is lower, while side also being facilitated to transport.
By the use of ball screw component, there is positioning accuracy height, high life, low pollution and can do just reverse at a high speed
The characteristics such as transmission and transformation transmission, promote service precision.
By the effect of latch, it can be realized the clamping to shuttlecock, conveniently take ball.
It can be realized the service of badminton service robot different height by height-adjustable support base;Pass through worm and gear
The kind of drive realize transmission, can turn to when doing no motion of and to be realized by worm and gear self-locking, prevent service robot in work
As when swing, cause badminton service robot also to be followed swing, improving stability by inertia or so.
Range by thickness is 15mm~30mm not high lower than the accuracy in placement exactness that this numerical value will lead to service, height
This numerical value will lead to that motor load is overweight, thus cannot the different drop point of free switching;External diametrical extent is 76mm~78mm
It will lead to service dynamics deficiency lower than this numerical value, will lead to the failures such as service robot card ball higher than this numerical value.Internal orifice dimension range
It is 8mm~10mm, it is insufficient lower than the rotational stability that this numerical value will lead to serving wheel.Highly this numerical value will lead to motor height
Vibration when speed rotation is excessive.The range of hardness is shore hardness 45~85, will lead to service placement deviation lower than this numerical value
It is larger, it is larger to the damage of shuttlecock to will lead to service robot higher than this numerical value.Serving wheel center away from range need 92mm~
100mm;It will lead to the failures such as service robot card ball lower than this numerical value, it is big to will lead to service placement deviation higher than this numerical value.
Whether there is shuttlecock in inductor induction ball mouth, if so, rotating electric machine can stop operating, to allow plumage
Ball top service robot is persistently served a ball, and when the ball of a ball storage barrel is all using completion, inductor will do it judgement, then control rotation
Motor rotation drives rotating seat rotation, and then replaces different ball storage barrels, thus switches to next ball storage barrel for having ball, this
Sample is achieved that the purpose continued to serve;By the setting of rotary components, it can be realized being applied in combination for multiple ball storage barrels, be used to
Shuttlecock is stored, ball storage barrel quantity is adjustable, can store the shuttlecock of different number.
Radius by the internal diameter of extensional pipeline is 73mm~76mm, and will lead to shuttlecock lower than this numerical value cannot be smooth
Fall, it is larger to will lead to the left and right offset amplitude that shuttlecock is fallen higher than this numerical value;By the snap ring, plumage can be prevented
Ball top is fallen down, and the minimum position internal diameter of snap ring needs to control in 47mm~49mm.It will lead to multiple plumages more than this numerical value
Ball top is fallen simultaneously, be will lead to service robot fuselage lower than this numerical value and is taken ball difficult.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (10)
1. a kind of badminton service robot, which is characterized in that including shell, ball storage barrel, ball serving device and steering base, the ball storage barrel
It is arranged on shell, the ball serving device is arranged in shell, and the steering base is arranged in housing bottom;Have on the shell
Accommodate the emission port of ball serving device;
Opening is provided with below the ball storage barrel, the ball serving device is located at below the opening of ball storage barrel;
The ball serving device includes adjusting component and emitting module, and the adjusting component includes adjustable plate and adjusts motor, described
Adjusting motor drives the adjustable plate rotation to adjust launch angle, and the emitting module is arranged on adjustable plate;
The steering base drives shell that horizontal direction rotation occurs.
2. badminton service robot according to claim 1, which is characterized in that the badminton service robot further includes that setting exists
Shell is intracorporal to take ball device,
Described that ball device is taken to include vertical motion assemblies, move horizontally component and clamp assemblies, the vertical motion assemblies drive
Clamp assemblies vertical movement, the clamp assemblies are located at below the opening of ball storage barrel, and the component that moves horizontally is located at clamping group
The lower section of part;
The emitting module be located at move horizontally component it is mobile when end.
3. badminton service robot according to claim 2, which is characterized in that the vertical motion assemblies are ball screw group
Part, the ball screw component include screw rod, fixed column and platform, and the screw rod is arranged in parallel with fixed column;The platform is living
Dynamic to be connected to screw rod and fix, the screw rod rotation band moving platform vertically moves.
4. badminton service robot according to claim 3, which is characterized in that the clamp assemblies are located on platform, described
Clamp assemblies include the clamping part for clamping motor and two mirror settings, and the clamping motor drives clamping part movement, the folder
The portion of holding includes being arranged fluted on the clamping face towards the clamping face of another clamping part, and multiple cards are provided in the groove
Tooth.
5. badminton service robot according to claim 1, which is characterized in that the badminton service robot further includes height can
The support base of adjusting, the support base are located at steering base bottom, and the steering base includes steering motor and worm and gear component, institute
Steering motor is stated to drive the worm and gear component movement and then drive shell that horizontal direction rotation occurs.
6. badminton service robot described in -5 any one according to claim 1, which is characterized in that the adjustable plate includes adjusting
The fulcrum at end, connecting pin and adjustable side and end, the fulcrum are rotatably connected in shell, are had on the adjustable side and are adjusted
Rack gear has gear on the output shaft for adjusting motor, and wheel and rack cooperation drives adjustable plate to turn around fulcrum
It is dynamic.
7. badminton service robot according to claim 6, which is characterized in that the emitting module is connected on connecting pin,
The emitting module includes two by emitting motor-driven serving wheel, and two serving wheels are arranged in parallel, the connecting pin
The upper opening with positioned at two serving wheels.
8. badminton service robot according to claim 7, which is characterized in that the serving wheel with a thickness of 15mm ~ 30mm;
The external diametrical extent of the serving wheel is 76mm ~ 78mm;The serving wheel has the inner hole connecting with transmitting motor, the inner hole hole
Diameter is 8mm ~ 10mm;The hardness of the serving wheel is shore hardness 45 ~ 85;The center of two serving wheels away from for 92mm ~
100mm。
9. badminton service robot described in -5 any one according to claim 1, which is characterized in that the badminton service robot is also
Including ball cylinder pedestal;The ball cylinder pedestal includes rotary components and inductive component, and the rotary components include rotating seat and rotation
Motor offers multiple utensil receiving openings being connected with the opening of ball storage barrel on the rotating seat, described in the rotating electric machine drives
Rotating seat rotates, and is provided with ball mouth below the rotating seat;
The inductive component includes inductor and controller, whether has shuttlecock, the control in the inductor induction ball mouth
Device processed obtains sensor data to control the rotation of rotating electric machine.
10. badminton service robot according to claim 9, which is characterized in that be provided with extension below the ball mouth
The radius of pipeline, the internal diameter of the extensional pipeline is 73mm ~ 76mm, and the end of the extensional pipeline is provided with snap ring, the card
The minimum position internal diameter of ring is 47mm ~ 49mm.
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CN110772777A (en) * | 2019-11-12 | 2020-02-11 | 山东科技大学 | Automatic service robot for badminton training |
CN111530055A (en) * | 2020-06-05 | 2020-08-14 | 峰才运动科技(广州)有限公司 | Badminton pitching machine |
CN114100098A (en) * | 2021-11-01 | 2022-03-01 | 安徽华羽体育用品有限公司 | Badminton launching device for high-strength training of badminton and use method of badminton launching device |
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