Multi-angle adjustable tennis training device

Abstract

The utility model provides a multi-angle adjusting tennis training device, and belongs to the technical field of sports equipment. Tennis balls sequentially enter the bottom ball conveying pipe through the inner ball conveying pipe, backflow of the tennis balls in the conveying process is effectively prevented through the retaining mechanism, and the ball conveying pipe is prevented from being blocked. The tennis ball can swing left and right in the horizontal direction through the left-right swing mechanism, and the flexibility and variability of serving are improved; serving angles are increased by controlling the angle change of the pitching mechanism, so that serving lines are diversified; the rotating mechanism is connected between the top ball conveying pipe and the ball serving mechanism, rotating power is provided for the balls, and 360-degree rotation is achieved. Through cooperation of the pitching mechanism, the left-right swinging mechanism and the rotating mechanism, the serving angle and the stress mode are changed, the contingency and the irregularity of a serving route are improved, the reactivity and the ball hitting level of a trainer are improved, and the problem of low-efficiency training caused by insufficient ability of a training partner is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sports equipment, specifically relates to a multi-angle adjusting tennis training device. BACKGROUND

[0002] Tennis is a ball sport originated from the old ball game, and its origin can be traced back to France in the 12th century. After several centuries of development and evolution, modern tennis was formed in the 19th century. With the evolution of the times, tennis has become a globally popular competitive sport with numerous international events such as the four majors and ATP global tour events, attracting millions of spectators and participants. With the great breakthroughs made by Chinese athletes in the tennis series at the Paris Olympics, tennis has sparked a new wave of development in China and is popular among many young people.

[0003] As one of the globally popular ball sports, tennis has various serving methods such as flat serve, side spin serve, and topspin serve, which positively influence the improvement of physical and psychological qualities.

[0004] Tennis players often face irregular serving routes from opponents and need to decide the best hitting route to score within a short time during the competition. Therefore, players need sparring partners to continuously change the serving type and route in daily training to improve their reaction ability. However, the effectiveness of this training method is often constrained by the level of sparring partners, and the training effect is uneven. At the same time, considering that human serving habits are difficult to change, it may not be possible to increase the randomness of serving, and existing tennis training devices have the problem of serving jamming during training, cannot perform multi-angle launching, and are difficult to meet the training requirements. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the problems of existing tennis training devices, such as serving jamming, inability to perform multi-angle launching, and difficulty in meeting training requirements, and provides a multi-angle tennis training device.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] A multi-angle adjusting tennis training device, comprising a ball storage mechanism, the ball storage mechanism is fixed on the top of the box body, the ball storage mechanism is connected with the bottom ball conveying pipe through the internal ball conveying pipe, the stop mechanism is installed on the bottom ball conveying pipe, the bottom ball conveying pipe is connected with the left and right swing mechanism, the left and right swing mechanism passes through the box body and is connected with the top ball conveying pipe, the top ball conveying pipe is connected with the rotating mechanism, the rotating mechanism is connected with the serving mechanism, and the top ball conveying pipe is provided with the pitch mechanism at the bending part.

[0008] The ball collecting mechanism comprises a ball collecting barrel, a perforated rotating disc arranged at the bottom of the ball collecting barrel, a fixed plate arranged at the bottom of the perforated rotating disc, a third driving motor fixed at the bottom of the fixed plate, a third driving motor output shaft connected with the perforated rotating disc, a through hole formed at one end of the fixed plate, an internal ball conveying pipe arranged at the through hole, and the through hole is consistent with the through hole on the perforated rotating disc.

[0009] The bottom of the box body is fixedly provided with a driving device, the driving device comprises a connecting rod, the connecting rod is connected with a crank wheel, the crank wheel is connected with a fourth driving motor, and the fourth driving motor drives the crank wheel to drive the connecting rod to move.

[0010] The end of the connecting rod is connected with a piston rod, the piston rod is connected with a piston block which is slidingly arranged in the bottom ball conveying pipe.

[0011] The two sides of the internal ball conveying pipe are fixedly provided with half joint supports, the internal ball conveying pipe and the bottom ball conveying pipe are connected through the half joint supports, a retreat stopping mechanism is fixedly arranged on the bottom ball conveying pipe, the retreat stopping mechanism comprises a spring, a stop block is arranged at the bottom of the spring, and the stop block passes through the bottom ball conveying pipe.

[0012] The left-right swinging mechanism comprises a driven shaft and a fifth driving motor, the bottom of the driven shaft is connected with the top of the bottom ball conveying pipe, the driving shaft of the fifth driving motor is connected with a driving shaft, the driving shaft is fixedly arranged on the inner side of the box body through a support, a driving gear is arranged on the outer surface of the driving shaft, a driven gear is arranged on the outer surface of the driven shaft, and the driven gear is engaged with the driving gear.

[0013] The top of the driven shaft is hingedly connected with the top ball conveying pipe, and a flexible hose is arranged in the gap of the hinge.

[0014] The pitching mechanism comprises a pitching support, an electric push rod and a pin shaft, the pitching support is fixedly arranged on the driven shaft, one end of the electric push rod is connected with the pitching support, the other end of the electric push rod is fixedly connected with the top ball conveying pipe through the pin shaft, and the electric push rod is telescopic.

[0015] The rotating mechanism comprises a rotating frame, a second driving motor, a small gear, a large gear, a rotating disc and a rotating shaft, the second driving motor is arranged on the rotating frame, the output shaft of the second driving motor is connected with the small gear, the small gear is engaged with the large gear, the large gear is arranged on the outer side of the rotating shaft, and the rotating disc is connected with the end of the rotating shaft.

[0016] The ball launching mechanism comprises a ball launching pipe and a shell, the ball launching pipe is connected with the rotating disc, the shell is arranged around the ball launching pipe, the first driving motor is symmetrically arranged on the upper and lower sides of the shell, the driving shaft of each group of the first driving motor is connected with a corresponding friction wheel, a pair of open grooves are formed on the end surface of the ball launching pipe, and the friction wheels are arranged in the grooves of the ball launching pipe.

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] The utility model provides a multi -angle adjustment tennis training device, including ball storage mechanism, ball storage mechanism is fixed at the top of box, ball storage mechanism is connected bottom ball conveying pipe through inside ball conveying pipe, installs the retreat prevention mechanism on bottom ball conveying pipe, bottom ball conveying pipe connects left and right swing mechanism, left and right swing mechanism passes through the box and connects top ball conveying pipe, top ball conveying pipe connects rotating mechanism, rotating mechanism connects ball serving mechanism, and the top ball conveying pipe bending part is provided with the pitch mechanism. Tennis enters bottom ball conveying pipe in proper order through inside ball conveying pipe, and the backflow of tennis in the conveying process is effectively prevented through the retreat prevention mechanism, prevents ball conveying pipe from being blocked, left and right swing mechanism makes tennis can swing left and right in horizontal direction, increases the flexibility and variability of serving, increases the serving angle through the angle change of control pitch mechanism, makes the serving route diversification, rotating mechanism is connected between top ball conveying pipe and ball serving mechanism, provides the power of rotation for ball, realizes 360 degrees rotation. Through the cooperation of pitch mechanism, left and right swing mechanism, rotating mechanism, change serving angle and stress mode, increase the contingency, irregularity of serving route, improve the reaction force and the level of hitting ball of trainer, avoid the problem of low -efficiency training caused by the insufficient ability of accompanying trainer.

[0019] Further, the ball serving mechanism is provided with a friction wheel, the ball is rotated and emitted by changing the position of the friction wheel. By controlling the rotation speed of one side friction wheel to be higher than that of the opposite side friction wheel, left-handed and right-handed serving switching is realized, and the serving diversity is increased. During the serving process, the friction wheel rotates at high speed, the tennis ball is squeezed and emitted under the action of friction, and the serving speed is controllable. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the first perspective solid drawing of the utility model;

[0021] Figure 2 It is the schematic diagram of removing the box of the utility model.

[0022] Figure 3 It is the schematic diagram of removing the box cover of the utility model

[0023] Figure 4 It is the sectional schematic diagram of the utility model.

[0024] Explanation of the reference numerals in the figure: 1. ball-serving mechanism; 2. rotating mechanism; 3. top ball-transmitting tube; 4. telescopic hose; 5. ball-storing mechanism; 6. box; 7. pitching mechanism; 8. left-right swinging mechanism; 9. anti-retraction mechanism; 11. housing; 12. friction wheel; 13. ball-serving tube; 14. first drive motor; 21. rotating frame; 22. second drive motor; 23. small gear; 24. large gear; 25. turntable; 26. rotating shaft; 51. ball-collecting bucket; 52. porous turntable; 53. fixed Fixed plate; 54, third drive motor; 55, internal ball transfer tube; 61, drive device; 611, connecting rod; 612, crank pulley; 613, fourth drive motor; 62, piston rod; 63, bottom ball transfer tube; 64, piston block; 81, fifth drive motor; 82, driving shaft; 83, driving gear; 84, driven gear; 85, driven shaft; 86, bracket; 71, pitch bracket; 72, electric push rod; 73, pin shaft; 91, spring; 92, stop block; 93, half joint bracket. DETAILED DESCRIPTION

[0025] In order to further understand the content of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the embodiments are merely for explanation of the present invention and are not intended to limit the present invention.

[0026] like Figures 1-4 As shown, a multi-angle adjustable tennis training device has the following structure:

[0027] A multi-angle adjustable tennis training device includes a ball storage mechanism 5, which is fixed to the top of a box body 6. The ball storage mechanism 5 is connected to a bottom ball delivery tube 63 via an internal ball delivery tube 55. A backstop mechanism 9 is installed on the bottom ball delivery tube 63. The bottom ball delivery tube 63 is connected to a left-right swing mechanism 8. The left-right swing mechanism 8 passes through the box body 6 and is connected to a top ball delivery tube 3. The top ball delivery tube 3 is connected to a rotating mechanism 2. The rotating mechanism 2 is connected to a serving mechanism 1. A pitching mechanism 7 is provided at the bend of the top ball delivery tube 3.

[0028] Specifically, the ball storage mechanism 5 is fixed above the box body 6, including a ball collecting bucket 51, a porous turntable 52 is arranged at the bottom of the ball collecting bucket 51, a fixing plate 53 is installed at the bottom of the porous turntable 52, and a third drive motor 54 is fixed at the bottom of the fixing plate 53. The output shaft of the third drive motor 54 is connected to the porous turntable 52, and a through hole is provided at one end of the fixing plate 53. The internal ball delivery pipe 55 is installed at the through hole. The through hole is consistent in size with the through hole on the porous turntable 52; the output shaft of the third drive motor 54 is matched with the porous turntable 52 through a flat key, and a bolt is installed at the end of the output shaft for fixing.

[0029] Specifically, the bottom of the box 6 is fixedly provided with a driving device 61, the driving device 61 comprises a connecting rod 611, the connecting rod 611 is connected with a crank wheel 612, the crank wheel 612 is connected with a fourth driving motor 613, the fourth driving motor 613 drives the crank wheel 612 to drive the connecting rod 611 to move; the end of the connecting rod 611 is connected with a piston rod 62, the piston rod 62 is connected with a piston block 64 which is slidingly installed in a bottom ball conveying pipe 63. By using the mechanical principle of crank connecting rod, the fourth driving motor 613 drives the crank wheel 612 to move in the circumferential direction, the rotation of the crank wheel 612 is converted into reciprocating motion through the crank, and the reciprocating motion further drives the piston rod 62 to move linearly continuously, so that the tennis balls are continuously fed.

[0030] Specifically, the internal ball conveying pipe 55 is fixedly provided with a knuckle bracket 93 on both sides, the internal ball conveying pipe 55 and the bottom ball conveying pipe 63 are connected through the knuckle bracket 93, a retreat prevention mechanism 9 is fixed at the corner connecting portion of the bottom ball conveying pipe 63 and the internal ball conveying pipe 55, the retreat prevention mechanism 9 comprises a spring 91, the bottom of the spring 91 is connected with a stop block 92, the stop block 92 passes through the bottom ball conveying pipe 63 and is arranged at the bottom of the bottom ball conveying pipe 63, the bottom of the stop block 92 extends into the internal ball conveying pipe 63, when the piston rod 62 moves forward, the stop block 92 is compressed and moves upward under the thrust, and when the piston rod 62 moves away, the stop block 92 is reset under the spring force.

[0031] Specifically, the end of the bottom ball conveying pipe 63 is connected with a driven shaft 85, the left and right swing mechanism 8 comprises a fifth driving motor 81, the driving shaft of the fifth driving motor 81 is connected with a driving shaft 82, the driving shaft 82 is fixed to the inner side of the box 6 through a bracket 86, the outer surface of the driving shaft 82 is provided with a driving gear 83, the outer surface of the driven shaft 85 is provided with a driven gear 84, the driven gear 84 is engaged with the driving gear 83; the fifth driving motor 81 drives the driving shaft 82, the driving gear 83 on the driving shaft 82 drives the driven gear 84 to rotate, so as to drive the driven shaft 85 to rotate.

[0032] Specifically, the top ball conveying pipe 3 is hingedly connected to the top of the driven shaft 85, a flexible hose 4 is installed in the gap of the hinged portion, the pitching bracket 71 of the pitching mechanism 7 is fixed to the inner side of the driven shaft 85, one end of the electric push rod 72 is connected with the pitching bracket 71, the other end of the electric push rod 72 is fixedly connected with the top ball conveying pipe 3 through the pin shaft 73, and the electric push rod 72 is telescopic.

[0033] Specifically, the end of the top ball conveying pipe 3 is connected with the rotating mechanism 2, the rotating mechanism 2 comprises a rotating frame 21, a second driving motor 22 is installed on the rotating frame 21, the output shaft of the second driving motor 22 is connected with a pinion 23 at the end, the pinion 23 is engaged with a large gear 24, the large gear 24 is sleeved on the outer side of a rotating shaft 26, the end of the rotating shaft 26 is connected with a rotating disc 25, a recess is machined near the port of the rotating disc 25, a locking check ring is installed, and the locking check ring clamps the rotating disc 25.

[0034] Specifically, the ball launching mechanism 1 comprises a ball launching tube 13 and a casing 11, the ball launching tube 13 is connected to the rotating disc 25, the casing 11 is in the shape of "Ω" and is installed around the ball launching tube 13, the first driving motor 14 is symmetrically arranged on the upper and lower sides of the casing 11, the driving shaft of each group of the first driving motor 14 is connected to the corresponding friction wheel 12, a pair of open grooves are processed on the end face of the ball launching tube 13, and the friction wheel 12 is installed at the groove of the ball launching tube 13.

[0035] A multi-angle adjusting tennis training device, and the working method thereof is as follows:

[0036] Turn on the power supply, and ensure that all the driving motors (the first driving motor 14, the second driving motor 22, the third driving motor 54, the fourth driving motor 613, the fifth driving motor 81 and the power supply of the electric push rod 72) are in the working state. Put the tennis balls into the ball collecting barrel 51, and prepare to start the training;

[0037] The third driving motor 54 is started to drive the multi-hole rotating disc 52 to rotate, when the through hole on the multi-hole rotating disc 52 is aligned with the tennis ball at the bottom of the ball collecting barrel 51, the tennis ball falls into the internal ball conveying pipe 55, and the tennis ball enters the bottom ball conveying pipe 63 through the internal ball conveying pipe 55; when the piston rod 62 advances, the stop block 92 is compressed by the pushing force of the spring 91 and moves upward, so that the tennis ball is allowed to pass through; when the piston rod 62 retreats, the spring 91 is reset, and the stop block 92 blocks the tennis ball from retreating, so that the tennis ball is continuously conveyed forward;

[0038] The fifth driving motor 81 is started to drive the driving shaft 82 to rotate, the driving gear 83 on the driving shaft 82 drives the driven gear 84 to rotate, so as to drive the driven shaft 85 and the top ball conveying pipe 3 to swing left and right, and the electric push rod 72 is extended and retracted to drive the top ball conveying pipe 3 to perform the pitch adjustment on the pitch support 71;

[0039] The second driving motor 22 is started to drive the pinion gear 23 to rotate, the pinion gear 23 is engaged with the gear wheel 24 to drive the rotating shaft 26 and the rotating disc 25 to rotate, so as to change the direction of the ball launching.

[0040] The first drive motor 14 starts, driving the friction wheels 12 to rotate. The friction wheels 12 contact the tennis ball at the notch of the ball launching tube 13, generating friction force to shoot the tennis ball out of the ball launching tube 13. By adjusting the rotation speed and position of the friction wheels 12, the speed and angle of the shot can be controlled. When the friction wheels 12 rotate clockwise (or counterclockwise, depending on the specific design of the ball launching mechanism) at a certain speed and contact the bottom of the ball, an upward rotational force will be imparted to the ball, achieving a topspin shot. Conversely, when the friction wheels rotate in the opposite direction and contact the bottom of the ball, a downward rotational force will be imparted to the ball, achieving an underspin shot. When the friction wheels 12 are placed horizontally, they can achieve left and right spin shots by changing the contact position and rotation direction of the ball. If the friction wheels 12 are designed to rotate to the right at a certain speed in the horizontal plane and contact the side of the ball (usually the right side), they will impart a left rotational force to the ball, achieving a left spin shot. If the friction wheels 12 contact the side of the ball (usually the left side) in the opposite direction (rotate to the left), they will impart a right rotational force to the ball, achieving a right spin shot.

[0041] When a tennis ball is shot out, the ball storage mechanism 5 continues to work to send the next tennis ball into the conveying system. The entire system continues to work until the training is completed or the tennis balls are used up.

[0042] Finally, it should be noted that the above examples are used to illustrate the technical solutions of the present application and are not limited thereto. Although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that the specific embodiments of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application. Any modification or equivalent replacement that does not depart from the spirit and scope of the present application should be covered within the protection scope of the claims of the present application.

Claims

1. A multi-angle adjustable tennis training device, characterized in that: The ball storage mechanism (5) is fixed on the top of the box (6), the ball storage mechanism (5) is connected with the bottom ball conveying pipe (63) through the internal ball conveying pipe (55), the bottom ball conveying pipe (63) is provided with the retreat stop mechanism (9), the bottom ball conveying pipe (63) is connected with the left and right swing mechanism (8), the left and right swing mechanism (8) penetrates through the box (6) and is connected with the top ball conveying pipe (3), the top ball conveying pipe (3) is connected with the rotating mechanism (2), the rotating mechanism (2) is connected with the ball launching mechanism (1), and the top ball conveying pipe (3) is provided with the pitching mechanism (7) at the bending portion.

2. A multi-angle adjustable tennis training device according to claim 1, wherein, The ball storage mechanism (5) comprises a ball collecting barrel (51), the bottom of the ball collecting barrel (51) is provided with a perforated rotary disc (52), the bottom of the perforated rotary disc (52) is provided with a fixed plate (53), a third driving motor (54) is fixed on the bottom of the fixed plate (53), the output shaft of the third driving motor (54) is connected with the perforated rotary disc (52), one end of the fixed plate (53) is provided with a through hole, the internal ball conveying pipe (55) is arranged in the through hole, and the size of the through hole is consistent with that of the through hole in the perforated rotary disc (52).

3. The multi-angle adjustable tennis training device according to claim 1, wherein, The bottom of the box (6) is fixedly provided with a driving device (61), the driving device (61) comprises a connecting rod (611), the connecting rod (611) is connected with a crank wheel (612), the crank wheel (612) is connected with a fourth driving motor (613), and the fourth driving motor (613) drives the crank wheel (612) to drive the connecting rod (611) to move.

4. A multi-angle adjustable tennis training device as claimed in claim 3, wherein, The end of the connecting rod (611) is connected with a piston rod (62), the piston rod (62) is connected with a piston block (64) which is slidingly arranged in the bottom ball conveying pipe (63).

5. The multi-angle adjustable tennis training device according to claim 1, wherein, The both sides of the internal ball conveying pipe (55) are fixedly provided with half joint supports (93), the internal ball conveying pipe (55) and the bottom ball conveying pipe (63) are connected through the half joint supports (93), the retreat stop mechanism (9) is fixed on the bottom ball conveying pipe (63), and the retreat stop mechanism (9) comprises a spring (91) and a stop block (92) arranged at the bottom of the spring (91).

6. A multi-angle adjustable tennis training device as claimed in claim 5, wherein, The left and right swing mechanism (8) comprises a driven shaft (85) and a fifth driving motor (81), the bottom of the driven shaft (85) is connected with the top of the bottom ball conveying pipe (63), the driving shaft of the fifth driving motor (81) is connected with a driving shaft (82), the driving shaft (82) is fixed on the inner side of the box (6) through a support (86), the outer surface of the driving shaft (82) is provided with a driving gear (83), and the outer surface of the driven shaft (85) is provided with a driven gear (84).

7. A multi-angle adjustable tennis training device as claimed in claim 6, wherein, The top of the driven shaft (85) is hingedly connected with the top ball conveying pipe (3), and the gap of the hinge is provided with a telescopic hose (4).

8. The multi-angle adjustable tennis training device according to claim 1, wherein, The pitching mechanism (7) comprises a pitching support (71), an electric push rod (72) and a pin shaft (73), the pitching support (71) is fixed on the driven shaft (85), one end of the electric push rod (72) is connected with the pitching support (71), the other end of the electric push rod (72) is fixedly connected with the top ball conveying pipe (3) through the pin shaft (73), and the electric push rod (72) can be telescopic.

9. The multi-angle adjustable tennis training device according to claim 1, wherein, The rotating mechanism (2) comprises a rotating frame (21), a second driving motor (22), a pinion (23), a gear wheel (24), a rotating disc (25) and a rotating shaft (26), the second driving motor (22) is installed on the rotating frame (21), the output shaft end of the second driving motor (22) is connected with the pinion (23), the pinion (23) is meshed with the gear wheel (24), the gear wheel (24) is sleeved outside the rotating shaft (26), and the rotating shaft (26) is connected with the rotating disc (25) at the end.

10. A multi-angle adjusting tennis training device according to claim 9, wherein, The ball launching mechanism (1) comprises a ball launching pipe (13) and a machine shell (11), the ball launching pipe (13) is connected with the rotating disc (25), the machine shell (11) is installed around the ball launching pipe (13), the first driving motor (14) is symmetrically arranged on the upper and lower sides of the machine shell (11), the driving shaft of each group of the first driving motor (14) is connected with a corresponding friction wheel (12), a pair of open grooves are processed on the end face of the ball launching pipe (13), and the friction wheel (12) is installed at the groove opening of the ball launching pipe (13).

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