CN110302517A - A tennis ball serving device for sports training - Google Patents

Abstract

The invention discloses a tennis ball serving device for sports training, which comprises a base, an armrest is arranged at one end of the top of the base, a bracket is arranged at the front end of the armrest, a sleeve is fixed on the top of the bracket, and a sleeve rod is slidably connected to the inner side of the sleeve. One end of the rod protrudes out of the sleeve and is connected with a baffle plate, one end of the sleeve rod protruding from the sleeve is sleeved with a first spring, the bottom of the baffle plate is fixedly installed with a rack, the front end of the bracket is provided with a protective shell, and the inner side of the protective shell is provided with a protective shell. The bottom is provided with a motor, the inner upper end of the protective shell is provided with a fixed shaft, the fixed shaft is connected with an incomplete gear, and the incomplete gear is meshed with the rack. The top of the duct is connected with a duct, the top of the duct is connected with a conical bucket, and the front end of the duct is connected with a serving tube. Tennis improves the efficiency of serving and has positive significance for tennis training.

Description

A tennis ball serving device for sports training

technical field

The invention relates to the field of sports training equipment, in particular to a tennis ball serving device for sports training.

Background technique

Tennis is a beautiful and intense sport, and it is usually played between two singles players or a combination of two players hitting a tennis ball with a tennis racket across a net on a tennis court. Tennis is a beautiful and intense sport. The origin and development of tennis can be summed up in four sentences: it was conceived in France, born in England, began to popularize and form a climax in the United States, and is now popular all over the world, known as the world. The second largest ball game.

The tennis ball machine is a machine that automatically serves the ball when playing tennis. The most mainstream tennis ball machine relies on the relative rotation of the two wheels to squeeze the tennis ball to hit the tennis ball. Tennis is the second largest ball game in the world. Tennis is played in many sports fields. Because tennis is often served when playing tennis, there are various tennis ball machines on the market. As one of sports, tennis is popular among the masses. In the process of tennis training, the coaches need to throw the tennis ball by hand, and then the players hold the racket to practice hitting the ball, so as to achieve the training purpose of hitting the tennis ball, but the traditional way of throwing the ball requires the assistance of others to practice. It consumes a lot of energy and time, and it is inconvenient for athletes to conduct independent hitting training.

However, the existing tennis ball machine has a single launching angle, which often gets stuck when serving, and the serving efficiency is low. Therefore, it is urgent to develop a tennis ball that can adjust the launching angle of the tennis ball, will not be stuck when serving, and can also adjust the serving direction. Tennis serving device for sports training.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the existing defects and provide a tennis ball serving device for sports training, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: a tennis ball serving device for sports training, comprising a base, one end of the top of the base is provided with a handrail, the front end of the handrail is provided with a bracket, and the top of the bracket is fixed with a A sleeve, the inner side of the sleeve is slidably connected with a sleeve rod, one end of the sleeve rod protrudes from the sleeve and is connected with a baffle plate, and one end of the sleeve rod protrudes from the sleeve is sleeved with a first spring, the bottom of the baffle is fixedly installed with a rack, the front end of the bracket is provided with a protective shell, the inner bottom of the protective shell is provided with a motor, and the output shaft of the motor is respectively connected with a first pulley and a second pulley Pulley, the inner upper end of the protective shell is provided with a fixed shaft, the fixed shaft is connected with an incomplete gear, the incomplete gear is meshed with the rack, and one side of the incomplete gear is connected with a third a pulley, the first pulley and the third pulley are sleeved with a first belt, the front end of the protective shell is provided with a conical bucket support frame, the top of the conical bucket support frame is connected with a conduit, the conduit The top of the rack is connected with a conical bucket, the bottom of the conical bucket is communicated with the top center of the conduit, the front end of the rack is connected with a connecting rod, and the end of the connecting rod extends into the conduit for connection There is a hammer, the front end of the guide tube is connected with a ball-bearing tube, a bar-shaped opening is formed at the bottom of the ball-shaped opening, and a ball-bearing mechanism is arranged below the bar-shaped opening. The top of the rotating wheel support frame is rotatably connected with a rotating wheel, the surface of the rotating wheel is sequentially installed with a plurality of teeing plates, one side of the rotating wheel is connected with a fourth pulley, the fourth pulley and the second pulley A second belt is sleeved, a direction adjusting plate is hinged on the front end of the ball tube, a cushion block is arranged on the top of the front end of the base, and a second spring is connected between the cushion block and the bottom of the direction adjustment plate.

As a preferred technical solution of the present invention, the four corners of the bottom of the base are provided with moving wheels.

As a preferred technical solution of the present invention, a ball outlet tube is connected between the bottom of the conical bucket and the conduit, and the inner diameter of the ball outlet tube is slightly larger than the diameter of the tennis ball.

As a preferred technical solution of the present invention, the motor is a servo motor.

As a preferred technical solution of the present invention, the number of the tee shots is three, and the included angles between the three tee boards are all 120°, and the surfaces of the tee boards are curved.

As a preferred technical solution of the present invention, the hammer is cylindrical, and the front end of the hammer is provided with a rubber buffer layer.

As a preferred technical solution of the present invention, the materials of the conduit and the ball tube are both Q235 steel.

As a preferred technical solution of the present invention, the included angle between the direction adjusting plate and the horizontal plane is an acute angle.

Compared with the prior art, the beneficial effects of the present invention are:

In the present invention, a cylinder, a first compression cylinder, a first rack, a second rack, a second compression cylinder and a water storage tank are arranged. When in use, the tennis ball is put into the conical bucket, and the tennis ball falls into the conduit through the ball outlet pipe. , and then start the motor, the motor drives the first pulley and the second pulley to rotate, the first pulley drives the third pulley to rotate through the first belt, the third pulley then drives the incomplete gear to rotate clockwise, and the incomplete gear is driven by meshing with the rack. The rack moves forward, the rack drives the hammer to move forward through the connecting rod, and the hammer restores the rack to its original position under the action of the sleeve, the sleeve rod, the baffle and the first spring, so that the hammer is in the guide tube. The reciprocating motion pushes the tennis ball into the teeing tube continuously, and at the same time, the second pulley drives the fourth pulley to rotate through the second belt, and the fourth pulley then drives the rotating wheel to rotate, and the rotating wheel rotates through the teeing board connected to the surface, and the teeing board will enter the teeing tube. At the same time, the second spring can exert a rebound force on the direction adjustment plate, so as to increase the strength of the tennis ball when it is sent out, and at the same time add the friction force of the rotating wheel to the tennis ball, so that the tennis ball can be sent out in a rotating manner. It can adjust the launch angle of the tennis ball, so that the ball will not be stuck when serving, and a large number of tennis balls can be sent out at one time, which improves the serving efficiency, saves the training time, and can enhance the player's catching intensity and difficulty, which is of positive significance for tennis training. .

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is a sectional view of the present invention;

FIG. 3 is a bottom view of the teeing tube of the present invention.

In the picture: 1. Base; 2. Armrest; 3. Bracket; 4. Sleeve; 5. Sleeve rod; 6. Outlet tube; 7. Baffle plate; 8. First spring; 9. Gear rack; 10. Protection Shell; 11, motor; 12, first pulley; 13, second pulley; 14, fixed shaft; 15, incomplete gear; 16, third pulley; 17, first belt; 18, cone bucket support frame; 19 , conduit; 20, cone bucket; 21, connecting rod; 22, hammer; 23, teeing tube; 24, bar opening; 25, teeing mechanism; 26, rotating wheel support frame; 27, rotating wheel; 28, teeing off plate; 29, the fourth pulley; 30, the second belt; 31, the direction adjustment plate; 32, the pad; 33, the second spring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-3, the present invention provides a technical solution: a tennis ball serving device for sports training, comprising a base 1, a handrail 2 is provided at one end of the top of the base 1, and a bracket 3 is provided at the front end of the handrail 2 , the top of the bracket 3 is fixed with a sleeve 4, the inner side of the sleeve 4 is slidably connected with a sleeve rod 5, one end of the sleeve rod 5 extends out of the sleeve 4 and is connected with a baffle 7, the One end of the sleeve rod 5 extending out of the sleeve 4 is sleeved with a first spring 8, the bottom of the baffle plate 7 is fixedly installed with a rack 9, and the front end of the bracket 3 is provided with a protective shell 10. The protective shell The inner bottom of 10 is provided with a motor 11, the output shaft of the motor 11 is respectively connected with a first pulley 12 and a second pulley 13, the inner upper end of the protective shell 10 is provided with a fixed shaft 14, which is connected to the fixed shaft 14. There is an incomplete gear 15, the incomplete gear 15 is meshed with the rack 9, a third pulley 16 is connected to one side of the incomplete gear 15, the first pulley 12 and the third pulley 16 The first belt 17 is sleeved, the front end of the protective shell 10 is provided with a conical bucket support frame 18, the top of the conical bucket support frame 18 is connected with a conduit 19, and the top of the conduit 19 is connected with a conical bucket 20. The bottom of the conical bucket 20 communicates with the top center of the conduit 19, the front end of the rack 9 is connected with a connecting rod 21, and the end of the connecting rod 21 extends into the conduit 19 for connection There is a hammer 22, and the front end of the conduit 19 is connected with a firing tube 23. The bottom of the firing tube 23 is provided with a bar-shaped opening 24, and a firing mechanism 25 is provided below the bar-shaped opening 24. The firing mechanism 25 Including a rotating wheel support frame 26, the top of the rotating wheel support frame 26 is rotatably connected with a rotating wheel 27, the surface of the rotating wheel 27 is sequentially installed with a plurality of tee shots 28, and one side of the rotating wheel 27 is connected with the first tee. Four pulleys 29, the fourth pulley 29 and the second pulley 13 are sleeved with a second belt 30, the front end of the ball tube 23 is hinged with a direction adjustment plate 31, and the top of the front end of the base 1 is provided with a pad block 32 , a second spring 33 is connected between the cushion block 32 and the bottom of the direction adjusting plate 31 .

In this embodiment, preferably, the bottom four corners of the base 1 are provided with moving wheels.

In this embodiment, preferably, a ball outlet tube 6 is connected between the bottom of the conical bucket 20 and the conduit 19 , and the inner diameter of the ball outlet tube 6 is slightly larger than the diameter of the tennis ball.

In this embodiment, preferably, the motor 11 is a servo motor.

In this embodiment, preferably, the number of the tee shots 28 is three, and the included angles between the three tee boards 28 are all 120°, and the surface of the tee boards 28 is arc-shaped.

In this embodiment, preferably, the hammer 22 is cylindrical, and the front end of the hammer 22 is provided with a rubber buffer layer.

In this embodiment, preferably, the material of the conduit 19 and the ball tube 23 is Q235 steel.

In this embodiment, preferably, the included angle between the direction adjusting plate 31 and the horizontal plane is an acute angle.

The working principle and use process of the present invention: when in use, put the tennis ball into the conical bucket 20, the tennis ball falls into the guide tube 19 through the ball outlet tube 6, and then start the motor 10, and the motor 10 drives the first pulley 12 and the second belt 13 The wheel rotates, the first pulley 12 drives the third pulley 16 to rotate through the first belt 17, the third pulley 16 further drives the incomplete gear 15 to rotate clockwise, and the incomplete gear 15 drives the rack 9 to move forward by meshing with the rack 9. , the rack 9 drives the hammer 22 to move forward through the connecting rod 21, and the hammer 22 restores the rack 9 to its original position under the action of the sleeve 4, the sleeve rod 5, the baffle 7 and the first spring 8, so that the The hammer 22 reciprocates in the guide tube 19 to push the tennis ball into the service tube 23 continuously. At the same time, the second pulley 13 drives the fourth pulley 29 to rotate through the second belt 30. The fourth pulley 29 then drives the rotating wheel 27 to rotate, and the rotating wheel 27 passes through. The serving plate 28 connected to the surface rotates, and the serving plate 28 pushes the tennis racket that enters the serving tube 23 into the direction adjusting plate 31, and at the same time the second spring 33 can exert a rebound force on the direction adjusting plate 31, thereby increasing the strength of the tennis ball. At the same time, the friction force of the rotating wheel 27 on the tennis ball can be added, and the tennis ball can be sent out in a rotating manner, which can adjust the launching angle of the tennis ball, so that the ball will not be stuck when serving, and a large number of tennis balls can be sent out at one time, which improves the serving efficiency. The training time is saved, the intensity and difficulty of catching the ball can be strengthened, and it has positive significance for tennis training.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. a kind of athletic training tennis service device, including pedestal (1), it is characterised in that: top one end of the pedestal (1) Equipped with handrail (2), the front end of the handrail (2) is equipped with bracket (3), is fixed with sleeve (4) at the top of the bracket (3), described It is slidably connected on the inside of sleeve (4) loop bar (5), one end of the loop bar (5) stretches out the sleeve (4) and is connected with baffle (7), one end that the loop bar (5) stretches out the sleeve (4) is arranged with the first spring (8), the fixed peace in the bottom of the baffle (7) Equipped with rack gear (9), the front end of the bracket (3) is equipped with protecting crust (10), and the inside bottom of the protecting crust (10) is equipped with motor (11), the output shaft of the motor (11) is connected separately with the first belt pulley (12) and the second belt pulley (13), the protecting crust (10) inner top side is equipped with fixing axle (14), is connected with partial gear (15) on the fixing axle (14), described incomplete Gear (15) engages connection with the rack gear (9), and the side of the partial gear (15) is connected with third belt pulley (16), institute It states the first belt pulley (12) and the third belt pulley (16) is arranged with the first belt (17), the front end of the protecting crust (10) is set Have the taper bucket support frame (18), is connected with conduit (19) at the top of the taper bucket support frame (18), the top of the conduit (19) Portion is connected with the taper bucket (20), and the bottom of the taper bucket (20) is connected with the center of top of the conduit (19), the tooth The front end of item (9) is connected with connecting rod (21), and the end of the connecting rod (21) extends in the conduit (19) to be connected with and hit It hammers into shape (22), the front end of the conduit (19) is connected with service pipe (23), and the bottom of the service pipe (23) offers strip gab (24), the lower section of the strip gab (24) is equipped with serving mechanism (25), and the serving mechanism (25) includes rotation wheeling supporting frame (26), it is rotatably connected to rotating wheel (27) at the top of the rotation wheeling supporting frame (26), the surface of the rotating wheel (27) is successively It is equipped with multiple targets (28), the side of the rotating wheel (27) is connected with the 4th belt pulley (29), the 4th belt pulley (29) it is arranged with the second belt (30) with second belt pulley (13), the front end of the service pipe (23) is hinged with direction adjusting The front top of plate (31), the pedestal (1) is equipped with cushion block (32), the bottom of the cushion block (32) and the direction adjustable plate (31) Second spring (33) are connected between portion.

2. a kind of athletic training tennis service device according to claim 1, it is characterised in that: the bottom of the pedestal (1) Portion quadrangle is equipped with movable pulley.

3. a kind of athletic training tennis service device according to claim 1, it is characterised in that: the taper bucket (20) It is connected with out between bottom and the conduit (19) bulb (6), the internal diameter of bulb (6) out is slightly larger than the diameter of tennis.

4. a kind of athletic training tennis service device according to claim 1, it is characterised in that: the motor (11) is to watch Take motor.

5. a kind of athletic training tennis service device according to claim 1, it is characterised in that: the target (28) There are three quantity is set, and the angle between three targets (28) is 120 °, and the surface of the target (28) is in arc Shape.

6. a kind of athletic training tennis service device according to claim 1, it is characterised in that: the hammer (22) is in circle Cylindricality, and the front end of the hammer (22) is equipped with cushion rubber layer.

7. a kind of athletic training tennis service device according to claim 1, it is characterised in that: the conduit (19) and institute The material for stating service pipe (23) is Q235 steel.

8. a kind of athletic training tennis service device according to claim 1, it is characterised in that: the direction adjustable plate (31) angle between horizontal plane is acute angle.