CN112546596B

CN112546596B - Tennis player reaction force exercise equipment for physical training

Info

Publication number: CN112546596B
Application number: CN202011404380.7A
Authority: CN
Inventors: 刘旸; 肖晓娟; 单芳; 李晓晶
Original assignee: Yancheng Yanlong Culture And Sports Industry Investment Co ltd
Current assignee: Yancheng Yanlong Culture And Sports Industry Investment Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2022-04-26
Anticipated expiration: 2040-12-03
Also published as: CN112546596A

Abstract

The invention discloses tennis player reaction force exercise equipment for physical training, which comprises a base, wherein the top of the base is provided with a shell, the bottom of the base is symmetrically provided with rollers, one side of the base is provided with a ball outlet, the top of the shell is provided with a ball inlet, an automatic ball serving mechanism is arranged in the shell, an angle adjusting mechanism is arranged in the base, the automatic ball serving mechanism comprises storage pipelines symmetrically arranged at the bottom of the ball inlet, baffle columns are arranged between the storage pipelines, sliding pins are symmetrically arranged in the middles of the baffle columns, one side of each sliding pin is provided with a first spring, the top of the base is provided with a rotating disc fixedly connected with the shell, and the tops of the rotating discs are symmetrically provided with through holes. The tennis ball training device sets different ball discharging speeds, performs targeted training, improves the training effect, gives tennis balls a left-right swinging angle, enables the training quality to be higher, and increases the tension of the training.

Description

Tennis player reaction force exercise equipment for physical training

Technical Field

The invention relates to the technical field of physical training equipment, in particular to tennis player reaction force training equipment for physical training.

Background

The sport training refers to planned sports activities organized under the guidance of a coach for improving the competitive skill and sports scores of athletes, and is an important component of competitive sports. The main participants of the sports training are athletes and coaches, but not general sports participants, and the sports training is an organized and planned activity process, and aims to improve the training level and lay a foundation for obtaining the sports scores.

Tennis players generally train through the reaction speed who trains oneself with the service robot, however, general service robot launches the tennis only to the place in the place ahead, but can't control the service speed of tennis, the speed of control play ball can let the effect of training better, have different service speeds to different sportsman, accurate training, and when play ball, because the tennis only launches from the machine, be subject to the restriction of export, can not launch to the multi-angle, can't play profitable training effect.

Disclosure of Invention

The present invention is directed to a tennis player reaction force training device for sports training to solve the above problems of the related art.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a tennis player reaction force exercise equipment for sports training, includes the base, the base top is provided with the casing, base bottom symmetry is provided with the gyro wheel, base one side is provided with out the ball mouth, the casing top is provided with the goal mouth, the inside automatic service mechanism that is provided with of casing, the inside angle adjustment mechanism that is provided with of base.

Furthermore, the automatic ball serving mechanism comprises storage pipelines symmetrically arranged at the bottom of the ball inlet, baffle columns are arranged between the storage pipelines, sliding pins are symmetrically arranged in the middles of the baffle columns, springs I are arranged on one sides of the sliding pins, servo motors are arranged at the bottoms of the baffle columns, rotating shafts are arranged at the bottoms of the servo motors, rotating discs fixedly connected with the shell are arranged at the tops of the bases, through holes are symmetrically arranged at the tops of the rotating discs, baffles fixedly connected with the rotating shafts are symmetrically arranged inside the rotating discs, belt pulleys I are arranged at the bottoms of the rotating shafts, a belt I is in transmission connection with the outer sides of the belt pulleys, a belt pulley II is in transmission connection with the middle of the belt I, a bevel gear I is arranged at the top of the belt pulley II, a bevel gear II is meshed with the outer side of the bevel gear I, and a sector gear I is arranged on the coaxial side of the bevel gear II, a gear shaft is meshed with the outer side of the sector gear, a chain wheel is connected to the outer side of the gear shaft in a transmission mode, a rotating ring is arranged at the top of the chain wheel, and a pressing plate is fixedly connected to the outer side of the rotating ring.

Further, the angle adjusting mechanism comprises a third belt pulley arranged on one side of the first belt, a screw rod is coaxially arranged on the third belt pulley, a shaft sleeve is in threaded connection with the bottom of the screw rod, a fourth belt pulley is arranged on the outer side of the shaft sleeve, a second belt pulley is in transmission connection with the outer side of the fourth belt pulley, a symmetrical fifth belt pulley is in transmission connection with one side of the second belt pulley, a rotating rod is coaxially arranged on the fifth belt pulley, a second sector gear is arranged on the top of the rotating rod, racks are meshed with the outer sides of the sector gear, chassis is fixedly connected with the two sides of the racks, a switch is arranged on the top of the chassis, stop blocks are arranged on the two sides of the top of the chassis, an electromagnet is arranged on the bottom of the chassis, a second spring is arranged on one side of the electromagnet, an iron push plate is arranged on one side of the second spring, a chute is arranged at the connection part between the chassis and the bottom of the electromagnet, a third spring is symmetrically arranged inside the chute, and a sliding block in sliding connection with the sliding groove is arranged on one side of the base plate.

Furthermore, the rotating shaft penetrates through the bottom of the blocking column to be connected to the middle of the rotating disc, the diameter of the storage pipeline is matched with that of the tennis ball, the bottom of the tennis inlet at the top of the shell is divided into two parts by the blocking column, the rotating shaft is driven to rotate through the servo motor, the baffles at two sides of the rotating shaft and the through holes are driven to rotate in a staggered mode, the speed of the tennis ball discharged from the through holes is controlled by controlling the rotating speed of the servo motor, and therefore the speed of the tennis ball discharged from the through holes is controlled to be the same as the pressing speed of the tennis ball at the top, the whole mechanism can be controlled in the ball serving speed of a sportsman, and the targeted training is facilitated.

Furthermore, the inside telescopic link that is provided with of clamp plate, the clamp plate is provided with logical groove with depositing the pipeline junction, clamp plate and rotating ring fixed connection, rotate the ring and encircle the clamp plate and rotate the time, the clamp plate will deposit the tennis in the pipeline and push down, and when the clamp plate rotated the opposite side of casing, the telescopic link in the middle of the clamp plate was extruded with the shells inner wall for the clamp plate shrink, when rotating once more and returning because expanding spring gets back to the original state.

Furthermore, the diameter of the through hole is matched with that of the tennis ball, the baffle is disc-shaped, the baffle and the through hole rotate in a staggered mode, support rings sliding with the rotating disc are arranged on two sides of the baffle, the rotating shaft drives the baffle to be staggered with the through hole when rotating, the tennis ball is discharged from the through hole, and the rotating speed is controlled through the servo motor to keep the tennis ball stable.

Furthermore, the first sector gear and the gear shaft are located on the same vertical surface, the second bevel gear and the second sector gear are coaxially and rotatably connected, the chain wheel is in transmission connection with the coaxial axes of the gear shaft and the rotating ring, when the first sector gear and the gear shaft rotate, the gear shaft can be driven to rotate only when the gear on the first sector gear is meshed with the gear on the gear shaft, and otherwise, no meshing relation exists.

Furthermore, the top of the screw rod is rotatably connected with a bearing, and the screw rod is fixedly rotated between the bearing and the shaft sleeve. The second belt penetrates through the bottom of the electromagnet and is divided into two parts, the belt pulley is driven to rotate through the second belt, the screw rod is driven to rotate at a fixed position, and therefore the parts at the bottom are driven to perform a transmission effect.

Further, the notch has been seted up to the chassis bottom, the rack sets up in the notch both sides, sliding connection between chassis and the electro-magnet, the notch of chassis bottom makes things convenient for dwang and rack to mesh, and the notch only has the mid portion, does not run through the chassis, and the chassis is connected through sector gear two at dwang top with the notch.

Further, push pedal and chassis sliding connection are made of iron, dog chassis fixed connection, chassis bottom sliding connection is at the dwang top, the electro-magnet is fixed in the base bottom, and the bottom of electro-magnet is the fixing base, and two belts pass the fixing base, and two divisions of belt are two parts, but all carry out the same transmission.

Compared with the prior art, the invention has the following beneficial effects:

1. the tennis ball is put in from the ball inlet, the tennis ball is stored in the storage pipeline, then the servo motor is controlled to have a required stroke, the motor drives the rotating shaft to rotate the baffle plate in the rotating disc in a staggered manner with the through hole, the tennis ball in the storage pipeline is discharged when the baffle plate leaves the through hole, the rotating shaft drives the bevel gear I and the bevel gear II through the belt pulley I and the belt, so that the sector gear I is meshed with the gear shaft in a spaced manner, a staggered interval is set for the dropping speed of the tennis ball, then the gear shaft drives the rotating ring to rotate the pressing plate, the pressing plate presses the tennis ball in the storage pipeline, the lowermost tennis ball pressing sliding pin is contracted inwards, the tennis ball is regularly controlled, the dropping speed of the tennis ball can be changed by adjusting the rotating speed of the motor, different ball discharging speeds are set, and targeted training is carried out, the training effect is improved.

2. When the rotating shaft rotates, the first belt drives the third belt pulley, so that the screw rod and the fourth belt pulley are driven, the second belt on the fourth belt pulley is connected to the fifth belt pulley in a transmission manner, the rotating rod is driven to rotate, the second sector gear on the top of the rotating rod is meshed with the rack, the rack is arranged at the bottom of the chassis, so that the chassis base is driven to reciprocate back and forth, tennis balls falling from the top of the base enter the top of the chassis, the electromagnet is turned off by the trigger switch, the iron push rod is rapidly opened outwards by the spring after losing magnetic force, the iron push plate pushes the tennis balls out of the tennis outlet, and through moving the chassis back and forth, when the tennis balls are ejected outwards, the tennis balls are given with a left-right swinging angle, so that the training quality is higher, and the training tension is increased.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a side view of the housing of the present invention;

FIG. 3 is an enlarged schematic view of FIG. 1 at A according to the present invention;

FIG. 4 is a schematic top view of the rotatable disk of the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 2B of the present invention;

FIG. 6 is a schematic top view of the base pan of the present invention;

FIG. 7 is a schematic view of a rotating lever configuration of the present invention;

FIG. 8 is a schematic top view of the connection between the base and the electromagnet of the present invention;

fig. 9 is a schematic top view of the sector gear of the present invention.

In the figure: 1, a base; 2, a shell; 3, rolling wheels; 4, a ball outlet; 5, a ball inlet; 6, storing the pipeline; 7, a stop post; 8 a slide pin; 9, a first spring; 10 a servo motor; 11 a rotating shaft; 12 rotating the disc; 13 through holes; 14 baffle plates; 15 a belt pulley I; 16 a first belt; 17 a second belt pulley; 18, a first bevel gear; 19 bevel gear two; 20, a sector gear I; 21 a gear shaft; 22 a sprocket wheel; 23 rotating the ring; 24, pressing a plate; 25, a third belt pulley; 26 screw rods; 27 shaft sleeves; 28 a belt pulley IV; 29 a second belt; 30 belt pulley five; 31 rotating the rod; 32 sector gear two; 33 rack bars; 34 a chassis; 35 a switch; 36 stop blocks; 37 an electromagnet; 38, a second spring; 39 a push plate made of iron; 40 chutes; 41, a third spring; 42 slide block.

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. 1-5, the present invention provides the following technical solutions: tennis player reaction force exercise equipment for physical training comprises a base 1, wherein a shell 2 is arranged at the top of the base 1, rollers 3 are symmetrically arranged at the bottom of the base 1, a ball outlet 4 is arranged at one side of the base 1, a ball inlet 5 is arranged at the top of the shell 2, an automatic ball serving mechanism is arranged inside the shell 2, an angle adjusting mechanism is arranged inside the base 1, the automatic ball serving mechanism comprises storage pipelines 6 symmetrically arranged at the bottom of the ball inlet 5, baffle columns 7 are arranged between the storage pipelines 6, sliding pins 8 are symmetrically arranged in the middles of the baffle columns 7, one sides of the sliding pins 8 are provided with springs 9, a servo motor 10 is arranged at the bottom of the baffle columns 7, a rotating shaft 11 is arranged at the bottom of the servo motor 10, a rotating disc 12 fixedly connected with the shell 2 is arranged at the top of the base 1, through holes 13 are symmetrically arranged at the top of the rotating disc 12, the inside symmetry of rolling disc 12 is provided with baffle 14 with pivot 11 fixed connection, pivot 11 bottom is provided with belt pulley 15, belt pulley 15 outside transmission is connected with belt 16, belt 16 middle transmission is connected with belt pulley 17, belt pulley 17 top is provided with bevel gear 18, bevel gear 18 outside meshing has bevel gear 19, the coaxial one side of bevel gear 19 is provided with sector gear 20, sector gear 20 outside meshing has gear shaft 21, gear shaft 21 outside transmission is connected with sprocket 22, sprocket 22 top is provided with swivel 23, swivel 23 outside fixedly connected with clamp plate 24.

In a preferred embodiment, the rotating shaft 11 passes through the bottom of the blocking column 7 and is connected to the middle of the rotating disc 12, the diameter of the storage pipe 6 is matched with that of a tennis ball, the bottom of the ball inlet 5 at the top of the housing 2 is divided into two parts by the blocking column 7, the rotating shaft 11 is driven by the servo motor 10 to rotate, the baffles 14 at two sides of the rotating shaft 11 and the through holes 13 are driven to rotate in a staggered manner, the speed of the tennis ball discharged from the through holes 13 is controlled by controlling the rotating speed of the servo motor 10, and therefore the speed is controlled to be the same as the speed of the tennis ball pressed down from the top, so that the whole mechanism can be controlled in the ball serving speed desired by a player, and the targeted training is convenient to be carried out.

In a preferred embodiment, an expansion link is disposed inside the pressing plate 24, a through slot is disposed at a connection position of the pressing plate 24 and the storage duct 6, the pressing plate 24 is fixedly connected to the rotating ring 23, when the rotating ring 23 drives the pressing plate 24 to rotate, the pressing plate 24 presses down tennis balls stored in the storage duct 6, and when the pressing plate 24 rotates to the other side of the housing 2, the expansion link in the middle of the pressing plate 24 is pressed against the inner wall of the housing 2, so that the pressing plate 24 contracts, and returns to the original state again due to the expansion spring when rotating back again.

In a preferred embodiment, the diameter of the through hole 13 matches the diameter of a tennis ball, the baffle 14 is in the shape of a disk, the baffle 14 rotates with the through hole 13 in a staggered manner, support rings sliding with the rotating disk 12 are arranged on both sides of the baffle 14, the baffle 14 is driven to rotate by the rotation of the rotating shaft 11 to be staggered with the through hole 13, the tennis ball is released from the through hole 13, and the rotation speed is controlled by the servo motor 10 to keep the tennis ball stable.

In a preferred embodiment, the first sector gear 20 and the gear shaft 21 are in the same vertical plane, the second bevel gear 19 and the first sector gear 20 are coaxially and rotatably connected, the chain wheel 22 is in transmission connection with coaxial axes of the gear shaft 21 and the rotating ring 23, the first sector gear 20 and the gear shaft 21 rotate, the gear on the first sector gear 20 is meshed with the gear on the gear shaft 21 only when the gear on the first sector gear 20 is meshed with the gear on the gear shaft 21, and the gear on the second sector gear 20 is not meshed with the gear on the gear shaft 21.

The working principle of the invention is as follows: tennis balls are put in through the ball inlet 5, the tennis balls fall in the storage pipeline 6 to be stacked, then a set servo motor 10 can be started, the servo motor 10 controls the rotating shaft 11 to rotate, the baffle plate 14 in the middle of the rotating shaft 11 is driven to rotate in the middle of the rotating disc 12, the through holes 13 and the baffle plates 14 on the shell of the rotating disc 12 rotate in a staggered mode, the through holes 13 are closed when the baffle plates 14 and the through holes 13 are overlapped, the tennis balls cannot fall, only after the rotating shaft 11 starts to rotate, the baffle plates 14 and the through holes 13 are staggered, the belt pulley 15 at the bottom of the rotating shaft 11 drives the belt pulley 16 to transmit, the belt pulley 17 in the middle of the belt 16 drives the bevel gear 18 at the top to rotate the bevel gear 19, the sector gear 20 coaxial with the bevel gear 19 rotates along with the sector gear 20, meanwhile, part of gears outside the sector gear 20 are meshed with the gear shaft 21, and when the part of the gears in the sector gear 20 are not meshed with the gear shaft 21, the gear shaft 21 cannot be driven to rotate, when the gear shaft 21 rotates, the chain wheel 22 is driven to drive the rotating ring 23, the pressing plate 24 rotates to press the tennis balls down in the storage pipeline 6, the tennis balls are extruded from the top and then downwards extrude the sliding pin 8, the sliding pin 8 extrudes the first spring 9 to shrink, the sliding pin 8 does not clamp the tennis balls, the tennis balls fall, the baffle 14 is staggered with the through hole 13, the tennis balls fall into the base 1, the operation is repeated, the extrusion speed of the pressing plate 24 on the tennis balls can be controlled by adjusting the speed of the servo motor 10, the interval time is shortened, the amplitude can be gradually increased during training, and the training effect is improved.

Referring to fig. 1 and fig. 6 to 9, the present invention provides the following technical solutions: the utility model provides a tennis player reaction power exercise equipment for sports training, angle adjustment mechanism include the belt pulley three 25 that sets up in belt one 15 one side, belt pulley three 25 is coaxial to be provided with screw rod 26, screw rod 26 bottom threaded connection has axle sleeve 27, the axle sleeve 27 outside is provided with belt pulley four 28, belt pulley four 28 outside transmission is connected with belt two 29, belt two 29 one side transmission is connected with symmetrical belt pulley five 30, belt pulley five 30 is coaxial to be provided with dwang 31, the dwang 31 top is provided with sector gear two 32, sector gear two 32 outside meshing has rack 33, rack 33 both sides fixedly connected with chassis 34, chassis 34 top is provided with switch 35, chassis 34 top both sides are provided with dog 36, base 1 bottom is provided with electro-magnet 37, electro-magnet 37 one side is provided with spring two 38, an iron push plate 39 is arranged on one side of the second spring 38, a sliding groove 40 is arranged at the connecting position of the bottom plate 34 and the bottom of the electromagnet 37, a third spring 41 is symmetrically arranged inside the sliding groove 40, and a sliding block 42 in sliding connection with the sliding groove 40 is arranged on one side of the bottom plate 34.

In a preferred embodiment, a bearing is rotatably connected to the top of the screw 26, and the screw 26 is fixed for rotation between the bearing and the sleeve 27. The second belt 29 penetrates through the bottom of the electromagnet 37 and is divided into two parts, the belt pulley three 25 is driven to rotate through the first belt 16, the screw 26 is driven to rotate at a fixed position, and therefore the parts at the bottom are driven to perform transmission action.

In a preferred embodiment, a notch is formed in the bottom of the bottom plate 34, the rack 33 is arranged on two sides of the notch, the bottom plate 34 is slidably connected with the electromagnet 37, the notch in the bottom of the bottom plate 34 facilitates the rotating rod 31 to be meshed with the rack 33, only the middle part of the notch is provided, the notch does not penetrate through the bottom plate 34, and the bottom plate 34 and the notch are connected through the second sector gear 32 on the top of the rotating rod 31.

In a preferred embodiment, the push plate 39 made of iron is slidably connected with the base plate 34, the stopper 36 is fixedly connected with the base plate 34, the bottom of the base plate 34 is slidably connected with the top of the rotating rod 31, the electromagnet 37 is fixed at the bottom of the base 1, the bottom of the electromagnet 37 is a fixed seat, the second belt 29 passes through the fixed seat, and the second belt 29 is divided into two parts but performs the same transmission function.

The working principle of the invention is as follows: when the servo motor 10 drives the rotating shaft 11 to rotate, the belt 16 drives the belt pulley three 25 to rotate, the belt pulley three 25 drives the screw 26 to rotate, the screw 26 drives the belt pulley four 28 to rotate by the shaft sleeve 27 at the bottom, the belt two 29 outside the belt pulley four 28 drives the belt pulley five 30 to transmit, when the rotating rod 31 in the middle of the belt pulley five 30 rotates, the sector gear two 32 at the top of the rotating rod 31 is meshed with the rack 33 at the bottom of the chassis 34, the sector gear two 32 rotates to enable the chassis 34 to reciprocate on the horizontal plane due to the meshed relation, the sliding block 42 at one side of the chassis 34 slides in the sliding groove 40 at the bottom of the electromagnet 37, when the chassis 34 reciprocates, the spring three 41 at the two sides of the sliding block 42 plays a stabilizing role on the chassis 34 to prevent the chassis 34 from reciprocating too fast, because tennis balls fall from the through holes 13 of the rotating disc 12 and fall onto the chassis 34 to trigger the switch 35, the switch 35 cuts off the power of the electromagnet 37, the electromagnet 37 is in a power-on state at the beginning, the iron push plate 38 is attracted, when the electromagnet 37 is cut off, the iron push plate 39 is rapidly ejected outwards under the action of the elastic force of the second spring 38, the iron push plate 39 slides on the chassis 34 to rapidly launch the dropped tennis, and the chassis 34 reciprocates, so that the ejected tennis has an angle of left-right swing, the trajectory of the launched tennis is more variable, the tension of the athlete during training is increased, the attention of the athlete is improved, and the reality of the training is enhanced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a tennis player reaction force exercise equipment for sports training, includes base (1), its characterized in that: a shell (2) is arranged at the top of the base (1), rollers (3) are symmetrically arranged at the bottom of the base (1), a ball outlet (4) is arranged at one side of the base (1), a ball inlet (5) is arranged at the top of the shell (2), an automatic ball serving mechanism is arranged in the shell (2), and an angle adjusting mechanism is arranged in the base (1); the automatic ball serving mechanism comprises storage pipelines (6) symmetrically arranged at the bottom of a ball inlet (5), a blocking column (7) is arranged between the storage pipelines (6), sliding pins (8) are symmetrically arranged in the middle of the blocking column (7), a first spring (9) is arranged on one side of each sliding pin (8), a servo motor (10) is arranged at the bottom of the blocking column (7), a rotating shaft (11) is arranged at the bottom of the servo motor (10), a rotating disc (12) fixedly connected with a shell (2) is arranged at the top of a base (1), through holes (13) are symmetrically arranged at the top of the rotating disc (12), baffles (14) fixedly connected with the rotating shaft (11) are symmetrically arranged inside the rotating disc (12), a first belt pulley (15) is arranged at the bottom of the rotating shaft (11), and a first belt (16) is in transmission connection with the outer side of the first belt pulley (15), the middle of the first belt (16) is in transmission connection with a second belt pulley (17), a first bevel gear (18) is arranged at the top of the second belt pulley (17), a second bevel gear (19) is meshed with the outer side of the first bevel gear (18), a first sector gear (20) is arranged on one coaxial side of the second bevel gear (19), a first gear shaft (21) is meshed with the outer side of the first sector gear (20), a chain wheel (22) is in transmission connection with the outer side of the gear shaft (21), a rotating ring (23) is arranged at the top of the chain wheel (22), and a pressing plate (24) is fixedly connected to the outer side of the rotating ring (23); the rotating shaft (11) penetrates through the bottom of the retaining column (7) and is connected to the middle of the rotating disc (12), the diameter of the storage pipeline (6) is matched with that of a tennis ball, and the bottom of the ball inlet (5) at the top of the shell (2) is divided into two parts by the retaining column (7); the angle adjusting mechanism comprises a belt pulley III (25) arranged on one side of a belt I (16), the belt pulley III (25) is coaxially provided with a screw rod (26), the bottom of the screw rod (26) is in threaded connection with a shaft sleeve (27), the outer side of the shaft sleeve (27) is provided with a belt pulley IV (28), the outer side of the belt pulley IV (28) is in transmission connection with a belt II (29), one side of the belt II (29) is in transmission connection with a symmetrical belt pulley V (30), the belt pulley V (30) is coaxially provided with a rotating rod (31), the top of the rotating rod (31) is provided with a sector gear II (32), the outer side of the sector gear II (32) is meshed with a rack (33), the two sides of the rack (33) are fixedly connected with a chassis (34), the top of the chassis (34) is provided with a switch (35), and two sides of the top of the chassis (34) are provided with a stop block (36), an electromagnet (37) is arranged at the bottom of the base (1), a second spring (38) is arranged on one side of the electromagnet (37), an iron push plate (39) is arranged on one side of the second spring (38), a sliding groove (40) is arranged at the joint of the chassis (34) and the bottom of the electromagnet (37), a third spring (41) is symmetrically arranged in the sliding groove (40), and a sliding block (42) which is in sliding connection with the sliding groove (40) is arranged on one side of the chassis (34); the bottom of the chassis (34) is provided with a notch, the racks (33) are arranged on two sides of the notch, and the chassis (34) is connected with the electromagnet (37) in a sliding mode.

2. A tennis player response force training apparatus as claimed in claim 1, wherein: the pressing plate (24) is internally provided with a telescopic rod, a through groove is formed in the joint of the pressing plate (24) and the storage pipeline (6), and the pressing plate (24) is fixedly connected with the rotating ring (23).

3. A tennis player response force training apparatus as claimed in claim 1, wherein: the diameter of the through hole (13) is matched with that of a tennis ball, the baffle (14) is disc-shaped, the baffle (14) and the through hole (13) rotate in a staggered mode, and support rings sliding with the rotating disc (12) are arranged on two sides of the baffle (14).

4. A tennis player response force training apparatus as claimed in claim 1, wherein: the first sector gear (20) and the gear shaft (21) are located on the same vertical surface, the second bevel gear (19) is coaxially and rotatably connected with the first sector gear (20), and the chain wheel (22) is in transmission connection with the coaxial axes of the gear shaft (21) and the rotating ring (23).

5. A tennis player response force training apparatus as claimed in claim 1, wherein: the top of the screw rod (26) is rotatably connected with a bearing, and the screw rod (26) is fixedly rotated between the bearing and the shaft sleeve (27); the second belt (29) penetrates through the bottom of the electromagnet (37) and is divided into two parts.

6. A tennis player response force training apparatus as claimed in claim 1, wherein: push pedal (39) and chassis (34) sliding connection are made of iron, dog (36) chassis (34) fixed connection, chassis (34) bottom sliding connection is at dwang (31) top, electro-magnet (37) are fixed in base (1) bottom.