CN115253252A - Tennis batting trainer - Google Patents

Tennis batting trainer Download PDF

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Publication number
CN115253252A
CN115253252A CN202211035991.8A CN202211035991A CN115253252A CN 115253252 A CN115253252 A CN 115253252A CN 202211035991 A CN202211035991 A CN 202211035991A CN 115253252 A CN115253252 A CN 115253252A
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CN
China
Prior art keywords
tennis
sliding
ball
rod
barrel
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Granted
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CN202211035991.8A
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Chinese (zh)
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CN115253252B (en
Inventor
余奂
蔡宗森
叶慧敏
徐军
张少坤
刘查鑫
章小凡
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Shangrao Normal University
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Shangrao Normal University
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Priority to CN202211035991.8A priority Critical patent/CN115253252B/en
Publication of CN115253252A publication Critical patent/CN115253252A/en
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Publication of CN115253252B publication Critical patent/CN115253252B/en
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00Training appliances or apparatus for special sports
    • A63B69/40Stationarily-arranged devices for projecting balls or other bodies
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00Training appliances or apparatus for special sports
    • A63B69/38Training appliances or apparatus for special sports for tennis

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Toys (AREA)

Abstract

The invention discloses a tennis hitting training device, which relates to the technical field of training equipment and comprises a base, wherein a fixed rod is arranged at the top of the base; the ball serving barrel is rotatably erected above one side of the base through a connecting rod, and one end of the ball serving barrel is provided with a ball serving pipeline; the tennis collecting hopper is erected at the top of the serving barrel, the top of the tennis collecting hopper is connected with the fixed rod, the bottom of the tennis collecting hopper is communicated with the serving pipeline, and tennis balls are collected by the tennis collecting hopper; the rotating rod is horizontally and rotatably sleeved on the connecting rod and drives the ball serving barrel to rotate; the ball hitting assembly comprises a push plate arranged in the ball serving pipeline in a sliding mode and a lower rack fixedly connected with the inner end of the push plate, and the push plate hits the tennis balls; the driving assembly is arranged on the other side of the top of the base and drives the lower rack to slide in the ball serving pipeline and the rotating rod to rotate. The invention ensures that each tennis ball has different emergent angles when emergent, and can adjust the range of the emergent angles of the tennis balls.

Description

Tennis batting trainer
Technical Field
The invention relates to the technical field of training equipment, in particular to a tennis hitting training device.
Background
Tennis ball, one of ball games. The effective tennis court is a rectangle, the length of the tennis court is 23.77 meters, the width of the single play court is 8.23 meters, and the width of the double play court is 10.97 meters. The middle is separated by a net, both sides of the game respectively occupy one side of the court, and the players hit the ball with a tennis racket.
Tennis enthusiasts need to be trained for a period of time to be skilled in mastering various techniques of tennis, and people who want to further improve the tennis technique need to continuously experience and stabilize the hitting action in the hitting training. In tennis hitting training, at least one person serves to match with a trainer to train, and in order to liberate a ball dispenser, a tennis serving device is designed to assist the trainer to train.
The existing tennis ball serving device has a single serving direction, cannot randomly launch balls with different angles, cannot adjust the angle range of serving, and cannot perform ball hitting training on incoming balls in different directions, so that the training is incomplete, the training effect is poor, and the training requirements of common tennis lovers cannot be met.
Disclosure of Invention
The embodiment of the invention provides a tennis hitting training device, which can solve the problems in the prior art.
The invention provides a tennis hitting training device, which comprises:
the top of the base is provided with a fixed rod;
the ball serving barrel is rotatably erected above one side of the base through a connecting rod, and one end of the ball serving barrel is provided with a ball serving pipeline;
the tennis ball collecting hopper is erected at the top of the serving barrel, the top of the tennis ball collecting hopper is connected with the fixing rod, the bottom of the tennis ball collecting hopper is communicated with the serving pipeline, and tennis balls are collected by the tennis ball collecting hopper;
the rotating rod is horizontally and rotatably sleeved on the connecting rod and drives the ball serving barrel to rotate;
the ball hitting assembly comprises a push plate arranged in the ball serving pipeline in a sliding mode and a lower rack fixedly connected with the inner end of the ball serving pipeline, and the push plate hits tennis balls;
and the driving component is arranged on the other side of the top of the base and drives the lower rack to slide in the pitching pipeline and rotate with the rotating rod.
Preferably, a groove is formed in the other end of the ball barrel, and the ball hitting assembly includes:
the baffle is arranged on the inner upper wall of the serve pipeline in a sliding mode, and a through hole matched with the tennis ball is formed in the baffle;
the second gear is rotatably arranged in the groove through a rotating shaft, and the bottom of the second gear is meshed with the lower rack;
the upper rack is arranged at the top of the groove in a sliding manner, is meshed with the second gear, and one end of the upper rack extends into the ball serving pipeline and is fixedly connected with the baffle;
the connecting plate is arranged in the groove in a sliding mode, one side of the connecting plate is fixedly connected with the end portion of the lower rack, and the other side of the connecting plate is connected with the end portion of the groove through a plurality of springs;
and the stop block penetrates through one end of the lower rack close to the connecting plate in a sliding manner.
Preferably, the inner wall of the pitching barrel is provided with a first chute which is in sliding fit with the stop block and is obliquely arranged.
Preferably, the driving assembly includes:
the pushing block is arranged on the inner wall of the ball serving barrel in a sliding mode and is abutted against one side of the stop block;
the motor is arranged on the other side of the top of the base, and a first gear is arranged on an output shaft of the motor;
the sliding plate is arranged above the first gear in a sliding mode and is connected with the side wall of the fixed rod through a telescopic rod; the sliding plate is hinged with the push block through a rotating rod;
the third gear is rotatably arranged below the ball serving barrel and is meshed with the first gear;
the eccentric ring is rotationally arranged at the top of the third gear through a sliding assembly and is sleeved on the rotating rod; the side wall of the middle part of the rotating rod is hinged with the bottom of the ball serving barrel through a hinge rod.
Preferably, the inner wall of the pitching barrel is provided with a second sliding groove in sliding fit with the push block, the second sliding groove is communicated with the first sliding groove, and the diameter of the second sliding groove is smaller than that of the first sliding groove.
Preferably, the push block comprises an upper plate and a lower plate, the upper plate and the lower plate are connected through a torsion spring, guide rods are fixedly connected to two sides of the lower plate, and a guide groove in sliding fit with the guide rods is formed in the side wall of the second chute; the lower plate extends to the outside of the ball serving barrel, and the sliding plate is hinged with the lower plate through a rotating rod.
Preferably, an eccentric rod is arranged at the top of the first gear, and the eccentric rod extends into the sliding plate.
Preferably, a through groove is formed in the third gear, and the sliding assembly includes:
the sliding block is arranged in the through groove in a sliding mode, and the eccentric ring is rotatably connected with the top of the sliding block;
the fixture block slides and is arranged inside the sliding block, a push rod is arranged at the bottom of the fixture block, the fixture block extends to the outside of the sliding block and is clamped with the side wall of the through groove, and the side wall of the through groove is provided with a plurality of clamping grooves clamped with the fixture block.
Preferably, a handle is arranged at the top of the fixing rod.
Preferably, the bottom of the base is provided with a plurality of universal wheels.
Compared with the prior art, the invention has the beneficial effects that:
(1) The rotating rod and the ball hitting component are driven to rotate by the motor, so that each tennis ball has different emergent angles when being emitted.
(2) The push rod is pulled by a hand, the clamping block can slide out from the inside of the clamping groove, the position of the clamping block is further adjusted, and the emitting angle range of the tennis ball is adjusted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a tennis ball hitting training device of the present invention;
FIG. 2 is a schematic cross-sectional view of the barrel of the present invention;
FIG. 3 is a side cross-sectional structural view of the barrel of the present invention;
FIG. 4 is a schematic structural diagram of a push block of the present invention;
FIG. 5 is a schematic top view of the first and third gears of the present invention;
FIG. 6 is a top cross-sectional structural view of a third gear of the present invention;
fig. 7 is a side cross-sectional structural view of the third gear of the present invention.
In the figure: 1-base, 2-ball serving barrel, 3-connecting rod, 4-ball serving pipe, 5-ball collecting hopper, 6-motor, 7-baffle, 8-push plate, 9-first gear, 10-groove, 11-second gear, 12-upper rack, 13-lower rack, 14-connecting plate, 15-spring, 16-stop block, 17-first chute, 18-second chute, 19-upper plate, 20-lower plate, 21-torsion spring, 22-guide rod, 23-guide groove, 24-eccentric rod, 25-sliding plate, 26-rotating rod, 27-third gear, 28-rotating rod, 29-hinged rod, 30-eccentric ring, 31-through groove, 32-sliding block, 33-clamping block, 34-clamping groove, 35-fixed rod, 36-telescopic rod, 37-handle and 38-universal wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the invention provides a tennis hitting training device, which comprises a base 1, wherein a ball serving barrel 2 is arranged on one side of the top of the base 1 through a connecting rod 3, and a ball serving pipeline 4 is arranged at one end of the ball serving barrel 2. A ball hitting component is arranged in the ball serving barrel 2 and comprises a push plate 8 which is arranged in the ball serving pipeline 4 in a sliding mode and a lower rack 13 fixedly connected with the inner end of the push plate 8, and the tennis ball is hit out by the push plate 8. The top of the pitching barrel 2 is provided with a ball collecting bucket 5, the bottom of the ball collecting bucket 5 is communicated with the pitching pipeline 4, and the ball collecting bucket 5 collects tennis balls. The connecting rod 3 is horizontally and rotatably sleeved with a rotating rod 28, and the rotating rod 28 drives the pitching barrel 2 to rotate. The other side of the top of the base 1 is provided with a driving component which simultaneously drives the lower rack 13 to slide in the ball serving pipe 4 and the rotating rod 3 to rotate.
Referring to fig. 2, a groove 10 is formed in the other end of the serving barrel 2, the hitting assembly comprises a baffle 7 which is slidably arranged on the inner upper wall of the serving pipe 4, and a through hole matched with a tennis ball is formed in the baffle 7. A push plate 8 is arranged inside the ball serving pipeline 4 in a sliding way. The inside second gear 11 that is equipped with through the pivot rotation of recess 10, the top of recess 10 slides and is equipped with rack 12, goes up rack 12 and the meshing of second gear 11, goes up 12 one ends of rack and extends to the pipeline of serving a ball 4 inside and baffle 7 tip fixed connection. The bottom of the groove 10 is provided with a lower rack 13 in a sliding manner, the lower rack 13 is meshed with the second gear 11, one end of the lower rack 13 extends into the ball serving pipeline 4 and is fixedly connected with the push plate 8, the other end of the lower rack is fixedly connected with one side of the connecting plate 14, and the other side of the connecting plate 14 is connected with the end part of the groove 10 through a plurality of springs 15. Referring to fig. 2 again, in the initial state, the through hole on the baffle 7 is located on the left side of the communication position of the ball collecting hopper 5 and the ball serving pipeline 4, and the push plate 8 is located on the right side of the communication position. The lower rack 13 slides towards the inner end of the groove 10 to drive the push plate 8 and the connecting plate 14 to slide towards the left side, the connecting plate 14 extrudes the plurality of springs 15, the push plate 8 drives the second gear 11 to rotate to drive the upper rack 12 to slide towards the right side, and the baffle 7 is driven to slide towards the right side. In the sliding process, the push plate 8 slides to the left side of the connecting part, the through hole is communicated with the communicating part, a tennis ball falls down from the through hole to the right side of the push plate 8, the baffle 7 continuously slides towards the right side, and only one tennis ball is ensured to fall down from the through hole at one time. When the lower rack 13 is loosened, the push plate 8 slides towards the right side under the action of the springs 15 to shoot out tennis balls, and the upper rack 12 slides towards the left side to drive the baffle 7 to slide to an initial state.
Referring to fig. 2-4, a stopper 16 is slidably disposed through one end of the lower rack 13 close to the connecting plate 14, and a first sliding slot 17, which is slidably engaged with the stopper 16 and is disposed at an inner wall of the barrel 2 and is inclined, is provided. The inner wall of the ball serving barrel 2 is also provided with a push block in a sliding manner, the push block is abutted against one side of the stop block 16, the inner wall of the ball serving barrel 2 is provided with a second sliding groove 18 in sliding fit with the stop block 16, and the second sliding groove 18 is communicated with the first sliding groove 17 and has a diameter smaller than that of the first sliding groove 17. When dog 16 is in the rightmost end, dog 16 is the biggest with ejector pad area of contact, and the ejector pad slowly moves to the left side, drives dog 16 and moves to the left side, and under first spout 17's effect, dog 16 slowly moves upwards, and the area of contact of ejector pad and dog 16 is littleer and more, and when dog 16 slided to the leftmost side, the ejector pad broke away from with dog 16, under a plurality of springs 15's effect, and connecting plate 14 slided to the right side for lower rack 13 slided to the right side.
Referring to fig. 1, 4 and 5, in this example, the push block includes an upper plate 19 and a lower plate 20, the upper plate 19 and the lower plate 20 are connected by a torsion spring 21, and the lower plate 20 extends to the outside of the barrel 2. Both sides of the lower plate 20 are fixedly connected with guide rods 22, and the side wall of the second sliding groove 18 is provided with a guide groove 23 in sliding fit with the guide rods 22. The upper plate 19 interferes with the stopper 16. A first gear 9 is arranged on an output shaft of the motor 6, an eccentric rod 24 is arranged at the top of the first gear 9, a sliding plate 25 is arranged above the first gear 9 in a sliding mode, the sliding plate 25 is hinged with the lower plate 20 through a rotating rod 26, and the eccentric rod 24 extends into the sliding plate 25. The top of the base 1 is provided with a fixed rod 35, and the side wall of the fixed rod 35 is connected with the sliding plate 25 through a telescopic rod 36. The motor 6 is started to drive the first gear 9 to rotate, drive the eccentric rod 24 to rotate, drive the sliding plate 25 to slide left and right, drive the connecting rod 26 to operate, drive the lower plate 20 to slide, and finally drive the lower rack 13 to slide. One tennis ball is launched for each rotation of the first gear 9.
In this example, the base 1 is provided with a controller and a storage battery, the storage battery is electrically connected with the motor 6, and the motor 6 is electrically connected with the controller. The controller controls the opening and closing and the speed regulation of the motor 6.
Referring to fig. 1, 5-7, a third gear 27 is rotatably disposed above the base 1, the third gear 27 is connected to the top of the base 1 through a rotating shaft, and the third gear 27 is engaged with the first gear 9. The connecting rod 3 lateral wall level is rotated and is connected with bull stick 28, and 28 middle part bottoms of bull sticks pass through hinge bar 29 and are articulated with service barrel 2 bottom, and bull stick 28 sets up with connecting rod 3 is coaxial. The top of the third gear 27 is slidably provided with an eccentric ring 30 through a sliding component, and the eccentric ring 30 is sleeved on the rotating rod 28. The motor 6 drives the first gear 9 to rotate, drives the third gear 27 to rotate, drives the eccentric ring 30 to rotate, drives the rotating rod 28 to horizontally reciprocate and drives the hinge rod 29 to horizontally reciprocate and finally drives the ball-serving barrel 2 to reciprocate in a certain range.
In this example the radius of the first gear 9 is smaller than the radius of the third gear 27, ensuring that there will be different exit angles for each tennis ball.
A through groove 31 is formed on the third gear 27, the sliding assembly comprises a sliding block 32 which is arranged in the through groove 31 in a sliding manner, and the eccentric ring 30 is rotatably connected with the top of the sliding block 32. A clamping block 33 is arranged in the sliding block 32 in a sliding mode, a push rod is arranged at the bottom of the clamping block 33, the clamping block 33 extends to the outside of the sliding block 32 and is clamped with the side wall of the through groove 31, and a plurality of clamping grooves 34 clamped with the clamping block 33 are formed in the side wall of the through groove 31. The push rod is pushed by hand, so that the fixture block 33 can slide out from the inside of the fixture groove 34, the position of the fixture block 33 is further adjusted, and the emitting angle range of the tennis ball is adjusted.
The fixed rod 35 is fixedly connected with the top of the ball collecting hopper 5, and the top of the fixed rod 35 is provided with a handle 37. The base 1 is provided with a plurality of universal wheels 38 at the bottom. The whole device is pushed by the handle 37, so that the device is convenient to move.
When the tennis hitting training device is used, tennis balls are collected in the ball collecting hopper 5, the motor 6 is turned on through the controller, the rotating rod 28 is rotated, and the hitting and hitting component is operated, so that the tennis balls have different outgoing angles each time the tennis balls are hit.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A tennis ball hitting training device, comprising:
the top of the base (1) is provided with a fixed rod (35);
the ball serving barrel (2) is rotatably erected above one side of the base (1) through a connecting rod (3), and one end of the ball serving barrel is provided with a ball serving pipeline (4);
the tennis ball collecting hopper (5) is erected at the top of the tennis serving barrel (2), the top of the tennis ball collecting hopper (5) is connected with a fixing rod (35), the bottom of the tennis ball collecting hopper is communicated with the tennis serving pipeline (4), and tennis balls are collected by the tennis ball collecting hopper (5);
the rotating rod (28) is horizontally sleeved on the connecting rod (3) in a rotating way and drives the pitching barrel (2) to rotate;
the ball hitting assembly comprises a push plate (8) arranged in the ball serving pipeline (4) in a sliding mode and a lower rack (13) fixedly connected with the inner end of the push plate, and the tennis ball is hit out by the push plate (8);
the driving assembly is arranged on the other side of the top of the base (1) and drives the lower rack (13) to slide in the ball serving pipeline (4) and rotate with the rotating rod (3) simultaneously.
2. A tennis hitting training device as set forth in claim 1, wherein a recess (10) is provided in the other end of the barrel (2), and wherein the hitting assembly comprises:
the baffle (7) is arranged on the inner upper wall of the serve pipeline (4) in a sliding mode, and through holes matched with tennis balls are formed in the baffle (7);
the second gear (11) is rotationally arranged in the groove (10) through a rotating shaft, and the bottom of the second gear (11) is meshed with the lower rack (13);
the upper rack (12) is arranged at the top of the groove (10) in a sliding manner, the upper rack (12) is meshed with the second gear (11), and one end of the upper rack extends into the ball serving pipeline (4) and is fixedly connected with the baffle (7);
the connecting plate (14) is arranged in the groove (10) in a sliding mode, one side of the connecting plate (14) is fixedly connected with the end portion of the lower rack (13), and the other side of the connecting plate is connected with the end portion of the groove (10) through a plurality of springs (15);
and the stop block (16) is arranged at one end of the lower rack (13) close to the connecting plate (14) in a penetrating and sliding manner.
3. A training device for tennis hitting according to claim 2, wherein the inner wall of the barrel (2) is provided with a first inclined chute (17) which is in sliding fit with the stopper (16).
4. A tennis ball hitting training device as claimed in claim 3 wherein said drive assembly comprises:
the push block is arranged on the inner wall of the pitching barrel (2) in a sliding mode and is abutted against one side of the stop block (16);
the motor (6) is arranged on the other side of the top of the base (1), and a first gear (9) is arranged on an output shaft of the motor (6);
the sliding plate (25) is arranged above the first gear (9) in a sliding mode and is connected with the side wall of the fixing rod (35) through an expansion rod (36); the sliding plate (25) is hinged with the push block through a rotating rod (26);
the third gear (27) is rotatably arranged below the ball serving barrel (2) and is meshed with the first gear (9);
the eccentric ring (30) is rotatably arranged at the top of the third gear (27) through a sliding assembly, and the eccentric ring (30) is sleeved on the rotating rod (28); the side wall of the middle part of the rotating rod (28) is hinged with the bottom of the ball serving barrel (2) through a hinge rod (29).
5. The tennis ball hitting training device as claimed in claim 4, wherein the inner wall of the pitching barrel (2) is provided with a second sliding groove (18) in sliding fit with the pushing block, and the second sliding groove (18) is communicated with the first sliding groove (17) and has a smaller diameter than the first sliding groove (17).
6. The tennis ball hitting training device of claim 5, wherein the pushing block comprises an upper plate (19) and a lower plate (20), the upper plate (19) and the lower plate (20) are connected through a torsion spring (21), guide rods (22) are fixedly connected to both sides of the lower plate (20), and guide grooves (23) in which the guide rods (22) are slidably matched are formed in the side walls of the second sliding grooves (18); the lower plate (20) extends to the outside of the ball barrel (2), and the sliding plate (25) is hinged with the lower plate (20) through a rotating rod (26).
7. A tennis ball hitting training device as claimed in claim 4 wherein the first gear (9) is provided with an eccentric rod (24) on top of it, said eccentric rod (24) extending inside the sliding plate (25).
8. A tennis ball hitting training device as claimed in claim 4 wherein said third gear (27) has a through slot (31) formed therein, and wherein said sliding assembly comprises:
the sliding block (32) is arranged in the through groove (31) in a sliding mode, and the eccentric ring (30) is rotatably connected with the top of the sliding block (32);
the clamping block (33) is arranged inside the sliding block (32) in a sliding mode, a push rod is arranged at the bottom of the clamping block (33), the clamping block (33) extends to the outside of the sliding block (32) and is clamped with the side wall of the through groove (31), and a plurality of clamping grooves (34) clamped with the clamping block (33) are formed in the side wall of the through groove (31).
9. A training device for tennis hitting according to claim 1, wherein a handle (37) is provided on top of the fixing rod (35).
10. A tennis ball hitting training device as claimed in claim 1 wherein the base (1) is provided with a plurality of casters (38) at the bottom.
CN202211035991.8A 2022-08-27 2022-08-27 Tennis ball hitting training device Active CN115253252B (en)

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CN202211035991.8A CN115253252B (en) 2022-08-27 2022-08-27 Tennis ball hitting training device

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Application Number Priority Date Filing Date Title
CN202211035991.8A CN115253252B (en) 2022-08-27 2022-08-27 Tennis ball hitting training device

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CN115253252A true CN115253252A (en) 2022-11-01
CN115253252B CN115253252B (en) 2024-06-14

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Publication number Priority date Publication date Assignee Title
US20110192384A1 (en) * 2010-02-11 2011-08-11 Hern Juie Co., Ltd. Baseball batting practice equipment
CN108654048A (en) * 2018-04-27 2018-10-16 傅源彬 A kind of tennis ball hitting training ball serving device
CN208710964U (en) * 2018-08-09 2019-04-09 上饶师范学院 A kind of badminton practice auxiliary device
CN212817998U (en) * 2020-08-17 2021-03-30 杨金凤 Tennis ball dispenser capable of preventing blocking of tennis balls
WO2021114006A1 (en) * 2019-12-08 2021-06-17 刘军 Automatic ball-retrieving/serving training device
CN113101626A (en) * 2021-05-24 2021-07-13 王翊超 Tennis serving device
CN214551052U (en) * 2021-03-03 2021-11-02 上饶师范学院 Volleyball pass and smash training device
CN113786594A (en) * 2021-08-27 2021-12-14 海南翔睿德科技有限公司 Automatic ball-serving speed detection system of table tennis service robot
CN114569996A (en) * 2022-04-01 2022-06-03 成都体育学院 Warm-up ball passing exercise device before football match

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110192384A1 (en) * 2010-02-11 2011-08-11 Hern Juie Co., Ltd. Baseball batting practice equipment
CN108654048A (en) * 2018-04-27 2018-10-16 傅源彬 A kind of tennis ball hitting training ball serving device
CN208710964U (en) * 2018-08-09 2019-04-09 上饶师范学院 A kind of badminton practice auxiliary device
WO2021114006A1 (en) * 2019-12-08 2021-06-17 刘军 Automatic ball-retrieving/serving training device
CN212817998U (en) * 2020-08-17 2021-03-30 杨金凤 Tennis ball dispenser capable of preventing blocking of tennis balls
CN214551052U (en) * 2021-03-03 2021-11-02 上饶师范学院 Volleyball pass and smash training device
CN113101626A (en) * 2021-05-24 2021-07-13 王翊超 Tennis serving device
CN113786594A (en) * 2021-08-27 2021-12-14 海南翔睿德科技有限公司 Automatic ball-serving speed detection system of table tennis service robot
CN114569996A (en) * 2022-04-01 2022-06-03 成都体育学院 Warm-up ball passing exercise device before football match

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