CN210963845U - Tennis training device capable of rotating tennis balls - Google Patents

Abstract

The utility model provides a tennis training device capable of rotating tennis balls, comprising a support frame, a goal cylinder is arranged above the support frame, a serving channel is fixed at the non-goal end of the goal cylinder, and one end of the service channel is fixed with a ball for pushing the tennis ball. The other end of the ball channel is sleeved with a sleeve that can rotate around it, and the outer side wall of the sleeve is sleeved with a driven pulley that is fixed to it. The driven pulley and the driving pulley are connected by a synchronous belt. The motor is connected with the output shaft of the motor, and the motor is fixed on the side wall of the ball barrel; the service channel is connected with the support frame through a connecting piece; the utility model provides a ball-bearing device that can adjust the angle of the ball and can simulate the firing side. Spin Ball, a tennis trainer that can rotate tennis balls specially for training the trainer's side spin catch technique.

Description

A tennis trainer capable of rotating tennis balls

technical field

The utility model belongs to the technical field of sports training equipment, in particular to a tennis training device capable of rotating tennis balls.

Background technique

Tennis is a ball game, usually played between two singles players or two pairs of combined players. The players hit the tennis ball with a tennis racket across the net. Tennis is currently popular all over the world and is known as the second in the world. Big ball games; and the improvement of tennis skills requires repeated training of serving skills, catching skills, and pace to achieve the effect of improving tennis skills; one of the ways of hitting the ball in tennis is side-spin, side-spin When the ball hits the ball, the racket swings in parallel from the back to the inside, causing the ball to spin from the outside to the inside, so it is called side spin. In practice, the spin of the ball is usually a mixed performance. Strength and rotation speed are related to factors such as the swing route when hitting the ball, the angle of the racket surface when hitting the ball, and how to catch the opponent's side spin requires a long time of training, but the existing technology is specifically aimed at side spin. training device.

Utility model content

The purpose of this utility model is to overcome the above-mentioned problems in the prior art, and to provide a rotatable tennis ball that can simulate the launch of side spin and adjust the angle of serving at the same time, and is specially used for exercising the trainer's side spin catching technique. Tennis trainer.

The technical scheme of the utility model is as follows: it comprises a support frame, a goal cylinder is arranged above the support frame, a serving channel is fixed at the non-goal end of the goal cylinder, a pusher for pushing the tennis ball is fixed at one end of the service channel, and the other end of the service channel is fixed. One end is sleeved with a sleeve that can rotate around it, and the outer side wall of the sleeve is sleeved with a driven pulley fixed to it. The driven pulley and the driving pulley are connected by a synchronous belt, and the driving pulley is connected with the output shaft of the motor. The motor is fixed on the side wall of the ball barrel; the ball launching channel is connected with the support frame through a connecting piece.

The above-mentioned connecting piece is a U-shaped connecting piece. The U-shaped connecting piece is formed by connecting a horizontal plate and two vertical plates. The horizontal plate is fixed on the side wall of the teeing channel by screws, and the side surfaces of the two vertical plates are respectively fixed with a a slider; the support frame is provided with an arc-shaped chute matched with each slider, and the slider is slidably connected with the arc-shaped chute; the end of the slider is provided with a block for locking the slider in the arc-shaped chute Locking components at specific locations inside.

A convex ring is fixed at one end of the above-mentioned ball launching channel connected to the sleeve, a groove is correspondingly formed on the sleeve, the convex ring is clamped in the groove, and the end of the groove is detachably connected with an end cover through a bolt.

The above locking assembly includes a plate body, a locking bolt and a locking nut. The plate body is fixed on the end of the slider and slides along the arc-shaped chute along with the slider; the plate body is also provided with threaded holes , the support frame is provided with a plurality of through holes matched with the threaded holes; the locking bolts are sequentially connected with the threaded holes and one through hole and are threadedly connected with the locking nut.

The above-mentioned support frame is fixed on the base.

When the above-mentioned propulsion member is an electric push rod, the fixed end of the electric push rod is fixed on one end of the ball launching channel, and the telescopic end of the electric push rod is used to push the tennis ball; when the propulsion member is a cylinder, the fixed end of the cylinder is fixed at the At one end of the teeing channel, the telescopic end of the cylinder is used to push the tennis ball.

The inner wall of the above-mentioned teeing channel is provided with a sponge cushion for preventing the tennis ball from slipping out.

The end of the sleeve is fixed with a ball outlet.

The beneficial effects of the present utility model:

1. The utility model utilizes the service channel to cooperate with the rotating sleeve for launching the rotating ball, which can simulate the opponent launching the rotating ball to exercise the trainer's catching speed and skill. Moving along the serving channel, the tennis ball will pass through the sleeve while giving a fast forward force to the tennis ball. At this time, the sleeve will drive it to rotate at a high speed through the rotating mechanism, so the tennis ball will be subjected to side shearing force after passing through the sleeve. After the ball outlet fixed at the end of the cylinder is launched, it will rotate and move in an arc at the same time, so as to achieve the purpose of launching a spinning ball.

2. The utility model can also change the angle of the ball at will. When it is necessary to adjust the angle of the ball, it is only necessary to push the ball channel to make the slider fixed on the side wall slide along the arc-shaped chute opened on the support frame. The locking bolts of the locking assembly are passed through the plate body and the support frame in turn, and the locking bolts and the locking nut are threadedly connected to lock the slider at a specific position in the arc-shaped chute.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

FIG. 2 is a schematic structural diagram of the connection between the connector of the present invention and the support frame;

FIG. 3 is a schematic structural diagram of the present utility model for the cooperation between the convex ring and the groove.

Description of reference numbers:

1. Support frame; 2. Goal barrel; 3. Service channel; 4. Propulsion piece; 5. Sleeve; 6. Connecting piece; 7. Slider; 8. Arc-shaped chute; 9. Convex ring; 10. groove; 11, end cover; 12, driven pulley; 13, driving pulley; 14, timing belt; 15, motor; 16, base; 17, horizontal plate; 18, vertical plate; 19, plate body; 20 , locking bolts; 21, locking nuts.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

Example 1:

This embodiment provides a tennis trainer that can rotate tennis balls, including a support frame 1, a goal barrel 2 is arranged above the support frame 1, and a serving channel 3 is fixed at the non-goal end of the goal barrel 2. The serving channel 3 One end is fixed with a propelling member 4 for pushing the tennis ball, the other end of the ball service channel 3 is sleeved with a sleeve 5 that can rotate around it, the outer side wall of the sleeve 5 is sleeved with a driven pulley 12 fixed to it, It is connected with the driving pulley 13 through the synchronous belt 14, the driving pulley 13 is connected with the output shaft of the motor 15, and the motor 15 is fixed on the side wall of the ball barrel 2; Support frame 1 connection;

A convex ring 9 is fixed at one end of the ball launching channel 3 connected with the sleeve 5 , a groove 10 is correspondingly formed on the sleeve 5 , the convex ring 9 is clamped in the groove 10 , and the end of the groove 10 is bolted. The end cover 11 is detachably connected;

The tennis trainer for rotatable tennis provided by the present application utilizes the service channel 3 to cooperate with the rotating sleeve 5 to launch the rotating ball, which can simulate the opponent's launching of the rotating ball to exercise the trainer's ball-catching speed and skills. When in use, use the propelling member 4 to push the tennis ball to move along the serving channel 3, while giving the tennis ball a fast forward force, the tennis ball will pass through the sleeve 5, and the sleeve 5 will drive it to rotate at a high speed through the rotating mechanism, so the tennis ball passes through The sleeve 5 will be subjected to side shearing force. At this time, the tennis ball will rotate after being launched from the ball outlet fixed at the end of the sleeve 5, and will also perform arc motion while rotating, so as to achieve the purpose of launching a spinning ball; at the same time, this application The teeing channel 3 and the sleeve 5 cooperate with the groove 10 through the convex ring 9 to ensure that the sleeve 5 can rotate at a high speed around the teeing channel 3 under the driving of the rotating mechanism to ensure the rotation speed of the tennis ball in the sleeve; at the same time, the application uses a motor 15 drives the driving pulley 13 to rotate, the driving pulley 13 drives the driven pulley 12 to rotate, the driven pulley 12 is sleeved and fixed on the outer side wall of the sleeve 5, when the motor 15 rotates at a high speed, it will drive the sleeve 5 to rotate at a high speed , to give a side shear force to the tennis ball passing through the sleeve 5 to achieve the purpose of launching a spin ball.

Example 2:

The only difference between this embodiment and Embodiment 1 is that the connecting member 6 is a U-shaped connecting member, and the U-shaped connecting member is formed by connecting a horizontal plate 17 and two vertical plates 18, and the horizontal plate 17 is fixed on the On the side wall of the teeing channel 3, a sliding block 7 is respectively fixed on the side surfaces of the two vertical plates 18; The sliding slot 8 is slidably connected; the end of the slider 7 is provided with a locking assembly for locking the slider 7 in a specific position in the arc slot 8;

The locking assembly includes a plate body 19, a locking bolt 20 and a locking nut 21. The plate body 19 is fixed on the end of the slider 7 and slides along the arc-shaped chute 8 together with the slider 7; the The plate body 19 is also provided with threaded holes, and the support frame 1 is provided with a plurality of through holes matched with the threaded holes; the locking bolts 20 are threadedly connected with the threaded holes and a through hole in sequence with the locking nut 21;

A tennis training device that can rotate tennis balls provided by the present application can also change the angle of serving at will. When the angle of serving needs to be adjusted, it is only necessary to manually push the serving channel 3 to drive the slider 7 fixed on the side wall along the support frame 1. The arc-shaped chute 8 opened on the upper slides, and after the angle is adjusted, the locking bolts 20 of the locking assembly are passed through the plate body 19 and the support frame 1 in turn. It is locked in a specific position in the arc-shaped chute 8; the support frame 1 of the present application is an inverted U-shaped support frame, and both sides of the U-shaped support frame of the inverted U-shaped support frame are provided with an arc-shaped chute 8, and the two vertical plates 18 are located in the U-shaped support frame. Between the support frame 1, and the sliding blocks 7 fixed on the sides of the two vertical plates 18 are respectively slidably connected with the arc-shaped sliding grooves 8, the cooperation between the two sliding blocks 7 and the arc-shaped sliding grooves 8 is used to ensure the sliding stability. After sliding to a proper position, the sliding block 7 is locked in a specific position in the arc-shaped chute 8 by the locking assembly.

Example 3:

The only difference between this embodiment and Embodiment 1 is that,

The support frame 1 is fixed on the base 16; when the pusher 4 is an electric push rod, the fixed end of the electric push rod is fixed at one end of the ball launch channel 3, and the telescopic end of the electric push rod is used to push the tennis ball; When the propelling member 4 is an air cylinder, the fixed end of the air cylinder is fixed at one end of the ball serving passage 3, and the telescopic end of the air cylinder is used to push the tennis ball; the inner wall of the ball ball passage 3 is provided with a sponge cushion for preventing the tennis ball from sliding out; the The end of the sleeve 5 is fixed with a ball outlet.

The working principle of the utility model:

When using the tennis trainer with rotatable tennis balls, first put a plurality of tennis balls into the goal barrel 2 in turn, then the tennis balls at the bottom will fall into the serving channel 3 under the action of gravity, and the serving channel 3 The inner wall is provided with a sponge cushion to prevent the tennis ball from slipping out, and at the same time, by adjusting the inclination angle of the ball outlet of the service channel 3, the tennis ball will not slip out of the service channel 3 and the sleeve 5;

After the tennis ball is placed, adjust the angle of serving first. When it is necessary to adjust the angle of serving, it is only necessary to push the serving channel 3 by hand to make the slider 7 fixed on the side wall slide along the arc-shaped chute 8 opened on the support frame 1. After the angle is adjusted, the locking bolts 20 of the locking assembly pass through the plate body 19 and the support frame 1 in turn. The locking bolts 20 and the locking nut 21 are threadedly connected to lock the slider 7 in a specific position in the arc-shaped chute 8. When the serve angle is determined;

After the angle of the ball is adjusted, the pusher 4 is activated, and the pusher 4 pushes the tennis ball to move along the service channel. After giving the tennis ball a fast forward force, the tennis ball will pop out from the ball outlet fixed at the end of the sleeve 5. At this time, the sleeve 5 is again The driving pulley 13 is driven to rotate by the motor 15, and the driving pulley 13 drives the driven pulley 12 to rotate. The driven pulley 12 is sleeved and fixed on the outer side wall of the sleeve 5, and the sleeve 5 is driven when the motor 15 rotates at a high speed. The high-speed rotation will give a side shear force to the tennis ball passing through the sleeve 5. After the tennis ball is subjected to the side shear force through the sleeve, at this time, the tennis ball will rotate and make an arc motion after being launched from the fixed ball outlet at the end of the sleeve to achieve the launch. The purpose of the side spin.

To sum up, the utility model provides a tennis training device capable of rotating tennis balls, which can simulate the launch of side spin and adjust the angle of serving, and is specially used for training the trainer's side spin catching technique.

The above disclosures are only a few specific embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims (8)

1. A tennis trainer capable of rotating tennis balls is characterized by comprising a support frame (1), wherein a ball inlet tube (2) is arranged above the support frame (1), a ball serving channel (3) is fixed at the non-ball inlet end of the ball inlet tube (2), a propelling part (4) for propelling the tennis balls is fixed at one end of the ball serving channel (3), a sleeve (5) capable of rotating around the ball serving channel is sleeved at the other end of the ball serving channel (3), a driven belt wheel (12) fixed with the sleeve is sleeved on the outer side wall of the sleeve (5), the driven belt wheel (12) is connected with a driving belt wheel (13) through a synchronous belt (14), the driving belt wheel (13) is connected with an output shaft of a motor (15), and the motor (15) is fixed on the side wall of the ball inlet tube (2); the serving channel (3) is connected with the support frame (1) through a connecting piece (6).

2. The tennis training aid for rotatable tennis balls according to claim 1, wherein the connecting member (6) is a U-shaped connecting member, the U-shaped connecting member is formed by connecting a transverse plate (17) and two vertical plates (18), the transverse plate (17) is fixed on the side wall of the serving channel (3) through screws, and the side surfaces of the two vertical plates (18) are respectively fixed with a sliding block (7); the support frame (1) is provided with an arc-shaped sliding chute (8) matched with each sliding block (7), and the sliding blocks (7) are connected with the arc-shaped sliding chutes (8) in a sliding manner; the end part of the sliding block (7) is provided with a locking component used for locking the sliding block (7) at a specific position in the arc-shaped sliding groove (8).

3. The tennis training aid for rotatable tennis balls according to claim 1, wherein a protruding ring (9) is fixed at one end of the service channel (3) connected with the sleeve (5), a groove (10) is correspondingly formed in the sleeve (5), the protruding ring (9) is clamped in the groove (10), and an end cover (11) is detachably connected to the end of the groove (10) through a bolt.

4. The tennis training aid for rotatable tennis balls according to claim 2, wherein said locking assembly comprises a plate (19), a locking bolt (20) and a locking nut (21), the plate (19) is fixed at the end of said slider (7) and slides along said arc-shaped sliding groove (8) along with the slider (7); the plate body (19) is also provided with a threaded hole, and the support frame (1) is provided with a plurality of through holes matched with the threaded hole; the locking bolt (20) is in threaded connection with the locking nut (21) through a threaded hole and a through hole in sequence.

5. A rotatable tennis training aid according to claim 4, wherein said support (1) is fixed to a base (16).

6. The tennis training aid for rotatable tennis as claimed in claim 1, wherein when said propelling member (4) is an electric putter, the fixed end of the electric putter is fixed at one end of said serving channel (3), and the telescopic end of the electric putter is used for propelling the tennis; when the propelling piece (4) is a cylinder, the fixed end of the cylinder is fixed at one end of the ball serving channel (3), and the telescopic end of the cylinder is used for pushing the tennis ball.

7. Tennis training aid for rotatable tennis as claimed in claim 1, characterized in that the inner wall of said ball serving channel (3) is provided with sponge cushions for preventing tennis from slipping out.

8. A rotatable tennis training aid according to claim 1, wherein said sleeve (5) is provided with a ball outlet at the end.

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