A tennis training device for training tennis players' reactions

Abstract

The present invention belongs to the technical field of sports equipment, and is particularly a tennis training device for training tennis players' reactions, comprising a mobile base, a position adjustment mechanism, an angle adjustment mechanism, a tennis ball launching mechanism, a tennis ball adding mechanism, and a tennis ball collecting mechanism; the position adjustment mechanism is fixed on the top of the mobile base, and is used to drive the angle adjustment mechanism, the tennis ball launching mechanism, the tennis ball adding mechanism, and the tennis ball collecting mechanism to adjust their positions in the horizontal straight line direction. The present invention facilitates the movement of the position adjustment mechanism, the angle adjustment mechanism, the tennis ball launching mechanism, the tennis ball adding mechanism, and the tennis ball collecting mechanism through the mobile base, so the present invention is convenient to move indoors and outdoors, and can be moved indoors for storage when not in use; by setting the position adjustment mechanism, the lateral position of the angle adjustment mechanism, the tennis ball launching mechanism, the tennis ball adding mechanism, and the tennis ball collecting mechanism can be adjusted, so as to cooperate with the angle adjustment mechanism to move the ball.

Description

Technical Field

[0001] The invention relates to the technical field of sports equipment, in particular to a tennis training device for training tennis players' reactions. Background Art

[0002] Tennis is a beautiful and intense sport, known as the world's second largest ball sport. More and more people become tennis players because of their interest in tennis. Compared with ordinary tennis enthusiasts, tennis players need more training to improve their skills. Currently, there are two main ways to train tennis players: one is to train serving skills and techniques, and the other is to improve skills through two-way matches. Among them, two-way matches can only be trained between players and between players and coaches, but training serving skills can be achieved through mechanical equipment;

[0003] For example, patent publication number CN106730751B discloses an intelligent tennis serving device, which can realize the function of launching a tennis ball and can adjust the angle and horizontal direction of the tennis ball. However, when the athlete hits the tennis ball back, there is no device for collecting the tennis ball, so the tennis ball cannot be collected, resulting in a large number of tennis balls scattered throughout the court, which is inconvenient to clean up, causing inconvenience to the use of the device;

[0004] For example, patent publication number CN107899220B discloses an efficient serving device, which uses a projectile method to launch a tennis ball. Although this patent can achieve a training effect, the landing position of the tennis ball after each projectile is not much different, so the training effect for the trainer is low.

[0005] Therefore, the present invention proposes a tennis training device for training tennis players' reactions, which can automatically launch tennis balls, automatically add tennis balls, adjust the launch angle and position, and collect tennis balls hit back by athletes, which not only improves the training effect, but also facilitates the cleaning of the court after training. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the present invention provides a tennis training device for training tennis players' reactions, which solves the problems raised in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tennis training device for training tennis players' reactions, comprising a mobile base, a position adjustment mechanism, an angle adjustment mechanism, a tennis ball launching mechanism, a tennis ball adding mechanism and a tennis ball collecting mechanism; the position adjustment mechanism is fixed on the top of the mobile base, and is used to drive the angle adjustment mechanism, the tennis ball launching mechanism, the tennis ball adding mechanism and the tennis ball collecting mechanism to adjust the position in the horizontal straight line direction; the angle adjustment mechanism is fixed on the top of the position adjustment mechanism, and is used to drive the tennis ball launching mechanism and the tennis ball adding mechanism to adjust the inclination angle; the tennis ball launching mechanism is fixed on the angle adjustment mechanism, and is used to launch the tennis ball at a certain angle; the tennis ball adding mechanism is fixed on the tennis ball launching mechanism and is connected to the inside of the tennis ball launching mechanism, and is used to add the tennis ball into the inside of the tennis ball launching mechanism in sequence; the tennis ball collecting mechanism is fixed on the top of the position adjustment mechanism, and is used to collect the tennis ball hit back by the athlete.

[0010] As a preferred technical solution of the present invention, the position adjustment mechanism includes a servo motor, a screw and two slide rails, the servo motor and the two slide rails are fixed on the top of the mobile base, both ends of the screw rod are fixed on the top of the mobile base through bearing seats, the two slide rails are symmetrically distributed on the top of the mobile base with the screw rod as the symmetry axis, a drive block is threadedly connected to the screw rod, and two roller groups are rollingly connected to the two slide rails, a transmission assembly is arranged between the output shaft of the servo motor and one end of the screw rod and are connected through the transmission assembly, a support plate is fixedly installed on the top of the drive block and the four roller groups, and the angle adjustment mechanism and the tennis ball collection mechanism are fixed on the top of the support plate.

[0011] As a preferred technical solution of the present invention, the angle adjustment mechanism includes an adjusting motor and two supports, the adjusting motor and the two supports are fixed on the top of the support plate, the interiors of the two supports are fixedly connected to the driving shafts through bearings, the output shaft of the adjusting motor is fixedly sleeved with a driving gear, one end of one of the driving shafts is fixedly sleeved with a driven gear, the driving gear and the driven gear are meshed with teeth, and the tennis ball launching mechanism is fixed between the opposite sides of the two driving shafts.

[0012] As a preferred technical solution of the present invention, the tennis ball launching mechanism includes a launching tube, the opposite ends of the two driving shafts are fixedly connected to the outer wall of the launching tube, one end of the launching tube is open and the other end is sealed, a partition is fixedly installed on the inner wall of the launching tube, a limit tube and two limit slide bars are fixedly installed on the bottom of the inner wall of the launching tube, an impact sleeve is movably sleeved on the outer surface of the limit tube, the impact sleeve is slidably connected to the two limit slide bars, an impact rod and two return springs are fixedly installed on the top of the impact sleeve, the two return springs are sleeved on the outer surfaces of their respective corresponding limit slide bars, one end of the two return springs is fixedly connected to the bottom of the partition, one end of the impact rod passes through the partition and is fixedly installed with an impact bump, an exhaust pipe connected to the interior of the launching tube is fixedly installed on the outer surface of the launching tube, a solenoid valve is arranged on the exhaust pipe, the interior of the limit tube is connected to a power mechanism through a pipeline, and the tennis ball adding mechanism is fixed on the outer surface of the launching tube and connected to the interior of the tube.

[0013] As a preferred technical solution of the present invention, the power mechanism is fixed on the top of the support plate, and the power mechanism is a high-pressure air pump.

[0014] As a preferred technical solution of the present invention, the tennis adding mechanism includes an adding tube, which is fixed on the outer surface of the launching tube and connected to the interior thereof, one end of the adding tube is fixedly installed with an adding box connected to the interior thereof, the top of the adding box is fixedly installed with a sorting tube connected to the interior thereof, the bottom of the adding box is fixedly installed with a pushing cylinder, the piston rod of the pushing cylinder passes through the adding box and is fixedly installed with a pushing block.

[0015] As a preferred technical solution of the present invention, the tennis collection mechanism includes a collection box and two support columns, the collection box and the two support columns are fixed on the top of the support plate, the top of the collection box is fixedly installed with a guide frame connected to the interior thereof, the tops of the two support columns are fixedly connected to the surface of the guide frame, the top of the guide frame is fixedly installed with a ball collecting frame connected to the interior thereof, and a goal notch is opened on the front of the ball collecting frame.

[0016] As a preferred technical solution of the present invention, a buffer rope net is arranged on the back of the ball receiving frame.

[0017] As a preferred technical solution of the present invention, a collection frame is placed inside the collection box.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides a tennis training device for training tennis players' reactions, which has the following beneficial effects:

[0020] 1. The tennis training device for training tennis players' reactions can conveniently drive the position adjustment mechanism, the angle adjustment mechanism, the tennis ball launching mechanism, the tennis ball adding mechanism and the tennis ball collecting mechanism to move through the mobile base. Therefore, the present invention is convenient to move indoors and outdoors, and can be moved indoors for storage when not in use.

[0021] 2. The tennis training device for training tennis players' reactions can adjust the lateral positions of the angle adjustment mechanism, the tennis ball launching mechanism, the tennis ball adding mechanism and the tennis ball collecting mechanism by setting a position adjustment mechanism, so that tennis balls at different positions and angles can be generated by the tennis ball generating mechanism in cooperation with the angle adjustment mechanism, thereby increasing the training difficulty for the athletes and improving the training effect.

[0022] 3. The tennis training device for training tennis players' reactions can adjust the inclination angle of the tennis launching mechanism and the tennis adding mechanism by setting an angle adjustment mechanism, and can adjust the angle of the tennis ball to produce different launching parabolas, so that the final landing point is changed, thereby improving the training effect on the athletes, and then through cooperation with the position adjustment mechanism, the athletes can run to hit the ball back, further improving the training effect.

[0023] 4. The tennis training device for training tennis players' reactions is provided with a tennis adding mechanism. After each tennis ball is launched, the next tennis ball can be automatically added to ensure that the training work will not be interrupted. When the tennis balls in the tennis adding mechanism are used up, one stage of training is completed, thus realizing a scientific and orderly training method.

[0024] 5. The tennis training device for training tennis players' reactions can provide athletes with a position for hitting the ball back by setting a tennis collecting mechanism. When the athlete hits the ball back after receiving it, the angle and strength of the return ball can be controlled so that the ball just enters the tennis collecting mechanism, thereby training the athlete. At the same time, the tennis balls after being launched can be collected to avoid the tennis balls being scattered on the court, which is conducive to cleaning the court after the training.

[0025] 6. The tennis training device for training tennis players' reactions only needs to be filled with tennis balls in the tennis adding mechanism during training, so it is easy to use and easy to move, so it is suitable for indoor and outdoor use and can meet the training needs of athletes for tennis serve. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a right front view of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a right side view of the structure of the present invention;

[0028] Figure 3 It is a left front view of the three-dimensional structure of the present invention;

[0029] Figure 4 It is a left rear view of the three-dimensional structure of the present invention;

[0030] Figure 5 A three-dimensional diagram of the internal structure of the launch tube of the present invention;

[0031] Figure 6 A cross-sectional view of the tennis ball of the present invention is added with a mechanism structure.

[0032] In the figure: 1. mobile base; 2. position adjustment mechanism; 201. servo motor; 202. lead screw; 203. slide rail; 204. drive block; 205. roller group; 206. transmission assembly; 207. support plate; 3. angle adjustment mechanism; 301. adjustment motor; 302. support; 303. drive shaft; 304. drive gear; 305. driven gear; 4. tennis ball launching mechanism; 401. launching tube; 402. partition; 403. limit tube; 404. limit slide rod; 4 05. Impact sleeve; 406. Return spring; 407. Impact rod; 408. Impact bump; 409. Exhaust pipe; 4010. Solenoid valve; 4011. Power mechanism; 5. Tennis ball adding mechanism; 501. Adding pipe; 502. Adding box; 503. Sorting pipe; 504. Pushing cylinder; 505. Pushing block; 6. Tennis ball collecting mechanism; 601. Collecting box; 602. Support column; 603. Guide frame; 604. Ball collecting frame; 605. Buffer rope net; 606. Collecting frame. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0034] Embodiment 1

[0035] See also Figure 1-6The present invention provides the following technical solutions: A tennis training device for training tennis players' reactions, comprising a mobile base 1, a position adjustment mechanism 2, an angle adjustment mechanism 3, a tennis ball launching mechanism 4, a tennis ball adding mechanism 5 and a tennis ball collecting mechanism 6; the position adjustment mechanism 2 is fixed on the top of the mobile base 1, and is used to drive the angle adjustment mechanism 3, the tennis ball launching mechanism 4, the tennis ball adding mechanism 5 and the tennis ball collecting mechanism 6 to adjust the positions in the horizontal straight line direction; the angle adjustment mechanism 3 is fixed on the top of the position adjustment mechanism 2, and is used to drive the tennis ball launching mechanism 4 and the tennis ball adding mechanism 5 to adjust the inclination angle; the tennis ball launching mechanism 4 is fixed on the angle adjustment mechanism 3, and is used to launch the tennis ball at a certain angle; the tennis ball adding mechanism 5 is fixed on the tennis ball launching mechanism 4 and is connected to the inside of the tennis ball launching mechanism 4, and is used to add the tennis ball into the inside of the tennis ball launching mechanism 4 in sequence; the tennis ball collecting mechanism 6 is fixed on the top of the position adjustment mechanism 2, and is used to collect the tennis balls hit back by the athletes.

[0036] In this embodiment, the mobile base 1 is composed of a bottom plate and mobile wheels installed under the bottom plate, wherein the mobile base 1 also includes basic structures such as a push handle and a wheel brake (not shown in the figure). The mobile base 1 can drive the position adjustment mechanism 2, the angle adjustment mechanism 3, the tennis ball launching mechanism 4, the tennis ball adding mechanism 5 and the tennis ball collecting mechanism 6 to move, so the present invention can be used indoors and outdoors, and it is convenient to push and store after use. During use, the position adjustment mechanism 2, the angle adjustment mechanism 3, the tennis ball launching mechanism 4, the tennis ball adding mechanism 5 and the tennis ball collecting mechanism 6 cooperate with each other, so as to realize the training of the athlete's serving technique.

[0037] Embodiment 2

[0038] See also Figure 1-4 The present invention is further optimized on the basis of the first embodiment. Specifically, the position adjustment mechanism 2 includes a servo motor 201, a screw rod 202 and two slide rails 203. The servo motor 201 and the two slide rails 203 are fixed on the top of the mobile base 1. Both ends of the screw rod 202 are fixed on the top of the mobile base 1 through bearing seats. The two slide rails 203 are symmetrically distributed on the top of the mobile base 1 with the screw rod 202 as the symmetry axis. A driving block 204 is threadedly connected to the screw rod 202. Two roller groups 205 are rollingly connected to the two slide rails 203. A transmission assembly 206 is arranged between the output shaft of the servo motor 201 and one end of the screw rod 202 and is connected through the transmission assembly 206. A support plate 207 is fixedly installed on the top of the driving block 204 and the four roller groups 205. The angle adjustment mechanism 3 and the tennis ball collecting mechanism 6 are fixed on the top of the support plate 207.

[0039] In this embodiment, the angle adjustment mechanism 3, the tennis ball launching mechanism 4, the tennis ball adding mechanism 5 and the tennis ball collecting mechanism 6 are all directly or indirectly fixed on the top of the support plate 207, so the support plate 207 can be directly driven to move; wherein the support plate 207 maintains the stability of the structure through the driving block 204 and the four roller groups 205, and the structural design of the roller group 205 is adapted to the structural design of the slide rail 203, as shown in the attached manual Figure 2 As shown, the roller group 205 consists of a wheel frame, a top wheel and two side wheels, wherein the top wheel plays a supporting role and the two side wheels play a limiting role, thereby ensuring that the roller group 205 can roll smoothly and stably on the slide rail 203, wherein the movement of the support plate 207 needs to be powered by the drive block 204; the drive block 204 and the screw rod 202 are threaded connection structures, when the servo motor 201 drives the screw rod 202 to rotate forward or reverse through the transmission component 206, the screw rod 202 can also rotate forward or reverse, so that the support plate 207 will move left and right in the lateral direction along the direction of the screw rod 202, thereby realizing the position adjustment of the angle adjustment mechanism 3, the tennis ball launching mechanism 4, the tennis ball adding mechanism 5 and the tennis ball collecting mechanism 6; wherein the transmission component 206 is a pulley and a belt, both of which are common transmission structures.

[0040] Embodiment 3

[0041] Please refer to 1-4. The present invention is further optimized on the basis of Example 1 and Example 2. Specifically, the angle adjustment mechanism 3 includes an adjustment motor 301 and two supports 302. The adjustment motor 301 and the two supports 302 are fixed on the top of the support plate 207. The interiors of the two supports 302 are fixedly connected with a driving shaft 303 through bearings. The output shaft of the adjustment motor 301 is fixedly sleeved with a driving gear 304. One end of one of the driving shafts 303 is fixedly sleeved with a driven gear 305. The driving gear 304 and the driven gear 305 are meshed with teeth. The tennis ball launching mechanism 4 is fixed between the opposite sides of the two driving shafts 303.

[0042] In this embodiment, by adjusting the angle of the tennis ball launching mechanism 4, the parabola generated after the tennis ball is launched changes, affecting the landing point of the tennis ball, and improving the athlete's reaction ability, thereby improving the training effect. At the same time, through the cooperation of the position adjustment structure 2, the training difficulty can be further increased, thereby ensuring that the present invention can help athletes in training; the two drive shafts 303 have different functions. The drive shaft 303 without the driven gear 305 installed acts as a driven shaft, and its main function is to improve the stability of the tennis ball launching mechanism 3. When the tennis ball launching mechanism 3 stops rotating or is rotating, the cooperation of the drive shaft 303 is required, so that In order to ensure the stability of the tennis ball launching mechanism 3, the function of another driving shaft 303 is to drive the tennis ball launching mechanism 3 to rotate, so that the angle of the tennis ball launching mechanism 3 can be adjusted, wherein the adjustment power comes from the adjusting motor 301, and the adjusting motor 301 drives the driving gear 304 to rotate, and then the driven gear 305 rotates, so the position of the tennis ball launching mechanism 3 can be adjusted; and the angle adjustment mechanism 3 also includes a telescopic sleeve rod (not shown in the figure), wherein one end of the telescopic sleeve rod is hinged to the tennis ball launching mechanism 3, and the other end of the telescopic sleeve rod is fixed to the mobile base 1, so the stability of the tennis ball launching mechanism 3 can be further improved.

[0043] Embodiment 4

[0044] Please refer to 1-6. The present invention is further optimized on the basis of the first, second and third embodiments. Specifically, the tennis ball launching mechanism 4 includes a launching tube 401. The opposite ends of the two driving shafts 303 are fixedly connected to the outer wall of the launching tube 401. One end of the launching tube 401 is open and the other end is sealed. A partition plate 402 is fixedly installed on the inner wall of the launching tube 401. A limiting tube 403 and two limiting slide bars 404 are fixedly installed on the bottom of the inner wall of the launching tube 401. An impact sleeve 405 is movably sleeved on the outer surface of the limiting tube 403. The impact sleeve 405 is slidably connected to the two limiting slide bars 404. The impact sleeve 405 An impact rod 407 and two return springs 406 are fixedly installed on the top, and the two return springs 406 are both sleeved on the outer surface of their respective corresponding limiting slide bars 404. One end of the two return springs 406 is fixedly connected to the bottom of the partition 402. One end of the impact rod 407 penetrates the partition 402 and is fixedly installed with an impact bump 408. An exhaust pipe 409 connected to the interior of the launch tube 401 is fixedly installed on the outer surface of the launch tube 401, and an electromagnetic valve 4010 is provided on the exhaust pipe 409. The interior of the limiting tube 403 is connected to a power mechanism 4011 through a pipeline. The tennis ball adding mechanism 5 is fixed on the outer surface of the launch tube 401 and is connected to the interior of the launch tube.

[0045] The power mechanism 4011 is fixed on the top of the support plate 207, and the power mechanism 4011 is a high-pressure air pump.

[0046] The tennis adding mechanism 5 includes an adding tube 501, which is fixed on the outer surface of the launching tube 401 and is connected to the interior thereof. An adding box 502 connected to the interior thereof is fixedly installed at one end of the adding tube 501, a sorting tube 503 connected to the interior thereof is fixedly installed at the top of the adding box 502, and a pushing cylinder 504 is fixedly installed at the bottom of the adding box 502. The piston rod of the pushing cylinder 504 penetrates the adding box 502 and is fixedly installed with a pushing block 505.

[0047] In this embodiment, the tennis ball launching mechanism 4 and the tennis ball adding mechanism 5 cooperate with each other to realize the automatic adding and launching of tennis balls.

[0048] The inside of the sorting tube 503 is filled with tennis balls. The diameter of the sorting tube 503 is equal to the diameter of the tennis balls. Since the launching tube 401 needs to accurately launch the tennis balls, the opening of the launching tube 401 needs to be tilted upward all the time. Therefore, the tennis balls at the bottom of the sorting tube 503 will be located inside the adding box 502, and will be offset downward under the influence of gravity, which will conflict with the pushing block 505 and will not move without the action of external force. At the same time, the remaining tennis balls are blocked inside the sorting tube 503. When the pushing cylinder 504 works, the piston rod drives the pushing block 505 to move. According to the instructions attached Figure 6 As shown, the pushing block 505 is just in contact with the inner wall of the adding box 502. When the pushing block 505 moves, the tennis ball already in the adding box 502 can be pushed into the adding tube 501, and then the tennis ball falls into the launching tube 401, and the pushing block 505 will block the part where the sorting tube 503 is connected to the adding box 502, so as to prevent the next tennis ball from falling into the adding box 502. When the pushing block 505 is reset, the tennis ball at the bottom will fall into the adding box 502, and will be affected by the internal size and gravity of the adding box 502 and will collide with the pushing block 505 again. Therefore, the operation of adding tennis balls is simple and convenient, and the orderly addition of tennis balls can be ensured.

[0049] When the tennis ball enters the launch tube 401, it will roll inside the launch tube 401 and move to the position of the impact bump 408. At this time, the power mechanism 4011 works, that is, the high-pressure air pump inflates the interior of the limit tube 403 through the pipeline, and the high-pressure gas drives the impact sleeve 405 to move, wherein the impact sleeve 405 slides on the two limit slide bars 404 to maintain the stability of the movement of the impact sleeve 405, and at the same time squeezes the two return springs 406, and then the impact rod 407 drives the impact bump 408 to move quickly, so that When the impact bump 408 contacts the tennis ball, the tennis ball can be launched through the launch tube 401, and then the power mechanism 4011 stops working, and the solenoid valve 4010 on the exhaust pipe 409 starts to discharge the gas inside the inner cavity formed by the partition 402 and the launch tube 401, and at the same time, the two reset springs 406 drive the impact sleeve 405 to reset. Due to the action of the limiting slide bar 404, it can be ensured that the impact sleeve 405 is in contact with the limiting tube 403 and is sleeved on the surface of the limiting tube 403, thereby completing the launch of a tennis ball.

[0050] Embodiment 5

[0051] Please refer to 1-4. The present invention is further optimized on the basis of Example 1, Example 2, Example 3 and Example 4. Specifically, the tennis collecting mechanism 6 includes a collecting box 601 and two supporting columns 602. The collecting box 601 and the two supporting columns 602 are fixed on the top of the supporting plate 207. A guide frame 603 connected to the interior of the collecting box 601 is fixedly installed on the top. The tops of the two supporting columns 602 are fixedly connected to the surface of the guide frame 603. A ball collecting frame 604 connected to the interior of the guide frame 603 is fixedly installed on the top of the guide frame 603. A goal notch is provided on the front of the ball collecting frame 604.

[0052] A buffer rope net 605 is provided on the back of the ball receiving frame 604 .

[0053] A collection frame 606 is placed inside the collection box 601 .

[0054] In this embodiment, after the athlete hits the launched tennis ball back, the return point can be aligned with the goal notch of the ball receiving frame 604, which can train the athlete's return accuracy and collect the hit tennis balls at the same time. When the ball enters the interior of the ball receiving frame 604 through the goal notch, the tennis ball will fall into the interior of the collection box 601 through the guide frame 603, thereby completing the collection of the tennis balls. The design of the buffer rope net 605 is added. When the tennis ball enters the interior of the ball receiving frame 604, it will contact the buffer rope net 605, and then after the force of the tennis ball is buffered, the tennis ball will directly fall into the interior of the guide frame 603, which can prevent the tennis ball from bouncing out of the ball receiving frame 604. Through the design of the collection frame 406, the collection frame 606 is placed inside the collection box 601, and the tennis balls can be directly collected. After the collection is completed, the collection frame 606 can be directly taken out.

[0055] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tennis training device for training tennis players' reactions, characterized in that: It comprises a mobile base (1), a position adjustment mechanism (2), an angle adjustment mechanism (3), a tennis ball launching mechanism (4), a tennis ball adding mechanism (5) and a tennis ball collecting mechanism (6); The position adjustment mechanism (2) is fixed on the top of the mobile base (1), and is used to drive the angle adjustment mechanism (3), the tennis ball launching mechanism (4), the tennis ball adding mechanism (5) and the tennis ball collecting mechanism (6) to adjust their positions in a transverse linear direction; The angle adjustment mechanism (3) is fixed on the top of the position adjustment mechanism (2), and is used to drive the tennis ball launching mechanism (4) and the tennis ball adding mechanism (5) to adjust the tilt angle; The tennis ball launching mechanism (4) is fixed on the angle adjustment mechanism (3) and is used to launch the tennis ball at a certain angle; The tennis ball adding mechanism (5) is fixed on the tennis ball launching mechanism (4) and is connected to the inside of the tennis ball launching mechanism (4), and is used to add tennis balls into the inside of the tennis ball launching mechanism (4) in sequence; The tennis ball collecting mechanism (6) is fixed on the top of the position adjustment mechanism (2) and is used to collect the tennis balls hit back by the athletes; The position adjustment mechanism (2) comprises a servo motor (201), a screw rod (202) and two slide rails (203); the servo motor (201) and the two slide rails (203) are fixed on the top of the mobile base (1); both ends of the screw rod (202) are fixed on the top of the mobile base (1) via bearing seats; the two slide rails (203) are symmetrically distributed on the top of the mobile base (1) with the screw rod (202) as a symmetry axis; a drive block is threadedly connected to the screw rod (202); (204), two roller groups (205) are rollingly connected on the two slide rails (203), a transmission assembly (206) is arranged between the output shaft of the servo motor (201) and one end of the screw rod (202), and the transmission is connected through the transmission assembly (206), a support plate (207) is fixedly installed on the top of the driving block (204) and the four roller groups (205), and the angle adjustment mechanism (3) and the tennis ball collection mechanism (6) are both fixed on the top of the support plate (207); The angle adjustment mechanism (3) comprises an adjustment motor (301) and two supports (302), the adjustment motor (301) and the two supports (302) are both fixed on the top of the support plate (207), the interiors of the two supports (302) are both fixedly connected with a driving shaft (303) via bearings, the output shaft of the adjustment motor (301) is fixedly sleeved with a driving gear (304), one end of one of the driving shafts (303) is fixedly sleeved with a driven gear (305), the driving gear (304) and the driven gear (305) are meshed with each other via teeth, and the tennis ball launching mechanism (4) is fixed between opposite sides of the two driving shafts (303); The tennis ball launching mechanism (4) comprises a launching tube (401), the opposite ends of the two driving shafts (303) are fixedly connected to the outer wall of the launching tube (401), one end of the launching tube (401) is open and the other end is sealed, a partition (402) is fixedly installed on the inner wall of the launching tube (401), a limiting tube (403) and two limiting slide bars (404) are fixedly installed on the bottom of the inner wall of the launching tube (401), an impact sleeve (405) is movably sleeved on the outer surface of the limiting tube (403), the impact sleeve (405) is slidably connected to the two limiting slide bars (404), and an impact rod is fixedly installed on the top of the impact sleeve (405). (407) and two return springs (406), the two return springs (406) are sleeved on the outer surface of the corresponding limiting slide rod (404), one end of the two return springs (406) is fixedly connected to the bottom of the partition (402), one end of the impact rod (407) passes through the partition (402) and is fixedly installed with an impact bump (408), the outer surface of the launch tube (401) is fixedly installed with an exhaust pipe (409) connected to the inside thereof, and the exhaust pipe (409) is provided with a solenoid valve (4010), the inside of the limiting tube (403) is connected to a power mechanism (4011) through a pipeline, and the tennis ball adding mechanism (5) is fixedly installed. The tennis ball adding mechanism (5) comprises an adding tube (501), the adding tube (501) is fixed on the outer surface of the launching tube (401) and is connected to the interior thereof, the power mechanism (4011) is fixed on the top of the supporting plate (207), the power mechanism (4011) is a high-pressure air pump, the tennis ball adding mechanism (5) comprises an adding tube (501), the adding tube (501) is fixed on the outer surface of the launching tube (401) and is connected to the interior thereof, one end of the adding tube (501) is fixedly mounted with an adding box (502) connected to the interior thereof, the top of the adding box (502) is fixedly mounted with a sorting tube (503) connected to the interior thereof, the bottom of the adding box (502) is fixedly mounted with a pushing cylinder (504), the pushing cylinder (504) The piston rod of the cylinder (504) penetrates the adding box (502) and is fixedly installed with a pushing block (505). The tennis ball collecting mechanism (6) comprises a collecting box (601) and two supporting columns (602). The collecting box (601) and the two supporting columns (602) are both fixed on the top of the supporting plate (207). A guide frame (603) connected to the inside of the collecting box (601) is fixedly installed on the top of the collecting box (601). The tops of the two supporting columns (602) are fixedly connected to the surface of the guide frame (603). A ball collecting frame (604) connected to the inside of the guide frame (603) is fixedly installed on the top of the guide frame (603). A ball notch is provided on the front of the ball collecting frame (604).

2. A tennis training device for training tennis players' reactions according to claim 1, characterized in that: A buffer rope net (605) is arranged on the back of the ball receiving frame (604).

3. A tennis training device for training tennis players' reactions according to claim 2, characterized in that: A collection frame (606) is placed inside the collection box (601).

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