JP3249676U - Self-training device for returning various hits in table tennis - Google Patents

Abstract

To provide a self-training device for returning various hits of table tennis balls, which has a simple structure, low cost, and is flexible to use.
[Solution] The device includes a rebound plate 1, a support plate 2, and a damping hinge 3. A first end plate of the damping hinge is fixedly connected to an end of the support plate, and a second end plate of the damping hinge is fixedly connected to an end of the rebound plate, and the angle θ between the rebound plate and the support plate can be set by the damping hinge at any angle. This provides a self-training device for rebounding various hits in table tennis, and solves the problems of existing table tennis training equipment, such as limited playing field, low flexibility of use, different training scenes, and high training costs.
[Selected Figure] Figure 1

Description

This utility model relates to the field of table tennis training equipment, specifically to a self-training device for returning various hits in table tennis.

Enthusiasts who want to learn and improve their table tennis skills can only learn and improve their table tennis skills by going to places like table tennis stadiums and hiring a coach. Table tennis training equipment currently on the market includes table tennis rebound boards, landing soft shaft swing table tennis trainers, table side bending spring table tennis trainers, and some table tennis enthusiasts stand next to the table tennis table and hold the ball to the left. After releasing the hand, the ping pong ball naturally falls vertically and bounces up vertically, and the right hand holds the racket to hit the ball. The "serve" methods of these methods are far from the real serve effect, too simple and simple, and the practice effect is greatly limited. In addition, table tennis enthusiasts pay a lot of money to hire trainers or buy serve machines. Due to the limitations of the stadium, only places like table tennis stadiums and training centers can be realized. There are also problems with the cost and time of transportation from home or office to table tennis halls and training centers.

In conclusion, existing table tennis training equipment is limited in terms of the playing field, has poor flexibility in use, and is difficult to apply to different training scenarios and has high training costs.

The purpose of this utility model is to provide a self-practice device for returning various hits in table tennis, and to solve at least one of the above problems that exist in the existing technology.

To achieve the above objectives, this utility model adopts the following technical solutions:
The self-training device for returning various hits in table tennis includes a rebound plate, a support plate and a damping hinge, a first end plate of the damping hinge is fixedly connected to one end of the support plate, a second end plate of the damping hinge is fixedly connected to one end of the rebound plate, and the damping hinge can be rebounded.
In this technical solution, the first end plate of the damping hinge is fixedly connected to one end of the support plate, the second end plate of the damping hinge is fixedly connected to the end of the rebound plate, the damping hinge is installed between the rebound plates, and the angle θ between the rebound plate and the support plate of the damping hinge is positioned at any angle, so that the self-training device can be placed at any height suitable for practice, and there are no restrictions on the usage scenario. This technical solution has a simple structure, low cost, easy portability, more flexible use, and strong practicality.

Furthermore, a left-right continuous position angle swing mechanism is included, which is installed on the support plate, the driven end of the left-right continuous position angle swing mechanism is fixedly connected to the first end plate of the damping hinge, and the left-right continuous position angle swing mechanism drives the rebound plate to swing at a continuous angle P in the left-right direction of the support plate. The left-right continuous position angle swing mechanism is designed to increase the randomness of the impact point after the ball is thrown, and the randomness of the impact point randomly generates hit balls of various courses, approximating the actual playing conditions of table tennis as much as possible.

The left-right continuous position angle swing mechanism drives the deflection plate continuously in the left-right direction of the support plate at angle P, and when it swings to the left, the maximum angle it swings to the right is 38 degrees. Taking a racket held in the right hand as an example, swinging it to the left will result in a backhand serve, a return ball, and a backhand shot, while swinging it to the right will result in a forehand serve, a return ball, and a forehand shot. When the left-right continuous position angle swings are performed continuously, the angle of the deflection plate surface swings continuously, allowing the left and right hands to serve and return balls from various position angles.

Furthermore, to provide a specific left and right continuous position angle swing mechanism, the left and right continuous position angle swing mechanism includes a DC motor, a rotating plate, an eccentric convex shaft, and a sliding vibration plate, the DC motor is installed on a support plate, the output shaft of the DC motor is connected to the rotating plate, the rotating plate is fixedly connected to the eccentric convex shaft, one end of the sliding pendulum plate is connected to the support plate at a rotation connection position, the other end of the sliding pendulum plate has a sliding groove, the eccentric convex shaft is in the sliding groove, and the end of the sliding pendulum plate close to the sliding groove is fixedly connected to the first end plate of the damping hinge.

In addition, to facilitate training and use without a platform support, a ground support rack is also included, and the support plate is placed on the ground support rack, or the support plate and the top end of the ground support rack are magnetically attracted to each other.

In addition, the ground support includes a manual lift bar to adjust the ground support to the appropriate height.

Furthermore, to facilitate stable and detachable installation of the support plate and the ground support frame, a second suction device is provided at the bottom of the support plate, and a first suction device is provided at the top end of the ground support frame, and the first and second suction devices are attached to each other.

Furthermore, in order to maximize the variety of serves and types of rebounds, the rebound plate is a flat plate, a round-bottomed spherical panel or a square-bottomed arc-shaped plate, the round-bottomed spherical panel including a circular base plate and a spherical surface integrally molded with the circular base plate, and the square-bottomed arc-shaped plate including a square base plate and an arc-shaped surface of the square base plate integrally molded with the square base plate.

In addition, to integrate various training modes, the bounce board includes two panels, including a left panel and a right panel, and the angle between the left panel and the right panel is obtuse.

In addition, to integrate more training modes, the bounce board contains three panels, the three panels include a middle board and two side boards, and the angle between the two side boards and the middle board is obtuse.

In addition, the two side boards and the middle board are molded as one piece, so that the connection method between the two side boards and the middle board can be freely selected according to needs. Or a removable button is installed between the left and right sides of the two side boards and the middle board, which can manually adjust the angle between the middle board and the support board, and at the same time, the angle between the two side boards, the middle board and the support board can change the inclination angle of the counterattack board surface of the two side boards and the middle board for the bounce shot. During training, the position of the self-training device can be manually changed to form the counterattack training effect of forehand serve and counterattack and backhand serve and counterattack. This self-training device is only used for the table.

The beneficial effect of this utility model is that the first end plate of the damping hinge and the end of the support plate are fixed, the second end plate of the damping hinge and the end of the rebound plate are fixedly connected, and the damping hinge is installed between the rebound plate and the support plate, and the damping hinge can be rebounded. The angle θ between the rebound plate and the support plate can be positioned at any angle to change the inclination of the rebound plate surface, and the inclination of the rebound plate surface generally varies between 22 degrees and 40 degrees, realizing the change in the height and speed of the rebound against the serve, thereby achieving the purpose of achieving any training mode for the serve and rebound of various courses. By placing this self-practice device at any height suitable for practice, training is possible, and there are no restrictions on the use scene. This technical solution has a simple structure, low cost, easy portability, more flexible use, and strong practicality.

Figure 1 is a structural diagram of a tabletop device in this utility model in which the deflection plate is a flat plate. Figure 2 is a side view of the structure of a platform-type device in this utility model, in which the deflection plate is a flat plate and equipped with a left and right continuous position angle swing mechanism. Figure 3 is a structural diagram of the first angle position of a tabletop device having a left and right continuous position angle swing mechanism in this utility model, viewed from above. FIG. 4 is a structural diagram of the tabletop device having the left and right continuous position angle swing mechanism in this utility model in the second angle position when viewed from above. Figure 5 is a structural diagram of the third angle position of a tabletop device having a left and right continuous position angle swing mechanism in this utility model, seen from above. FIG. 6 is a structural diagram of the fourth angle position of the tabletop device having the left and right continuous position angle swing mechanism of this utility model when viewed from above. Figure 7 is a side view of the structure of a tabletop device that integrates the damping hinge and support plate in this utility model. FIG. 8 is a schematic diagram of an overhead view of the structure in which the damping hinge and the support plate are integrated in this utility model. FIG. 9 is a structural diagram of the landing type device in this utility model. Figure 10 is a structural diagram of a landing-type device equipped with a left and right continuous position angle swing mechanism in this utility model. Figure 11 is a structural diagram of the tabletop device in this utility model, in which the rebound plate for the bounce serve is a round-bottomed ball panel. Figure 12 is a structural diagram of the platform device in this utility model, in which the deflection plate is a square bottom arc plate. Figure 13 is a structural diagram of a platform-type device in this utility model, which has a three-panel deflection board and a removable sideboard. Figure 14 is a structural diagram of a tabletop device in this utility model, in which the deflection plate is made up of three panels and the side and middle plates are of an integrated structure. Figure 15 is a structural diagram of the panel with two deflection plates in this utility model. Figure 16 is a structural drawing of the main ball stand of this utility model looking down on the in-use position. Figure 17 shows the distribution of ball path types that occur when a ball falls on our table. Figure 18 is a structural diagram of the first usage scene of this utility model. Figure 19 is a structural diagram of the second usage scene of this utility model. Figure 20 is a structural diagram of the third usage scene of this utility model. Figure 21 is a structural diagram of the fourth usage scene of this utility model. Figure 22 shows the layout and structure of this utility model for forehand and backhand shots.

Specific embodiment of the invention

Specific Implementation Methods In order to more clearly explain the embodiments of this utility model and the technical solutions in the existing technology, the following briefly introduces this utility model by combining the attached drawings with the embodiments or the description of the existing technology. Obviously, the structural explanations in the following attached drawings are only some embodiments of this utility model. For those of ordinary skill in the art, other appended drawings can be obtained based on these attached drawings without creative work. It should be noted here that the description of these implementation methods is helpful for understanding this utility model, but is not a limitation on this utility model.

As shown in Figures 1 to 22, this embodiment provides a self-training device for returning various hits in table tennis. It consists of a rebound plate 1, a support plate 2 and a damping hinge 3. A first end plate of the damping hinge 3 is fixedly connected to one end of the support plate 2, and a second end plate of the damping hinge 3 is fixedly connected to one end of the rebound plate 1, and the damping hinge 3 can be rebounded.

In this technical solution, the first end plate of the damping hinge 3 is fixedly connected to the end of the support plate 2, and the second end plate of the damping hinge 3 is fixedly connected to one end of the backboard 1. The damping hinge 3 is installed between the rebound plate 1 and the support plate 2. The damping hinge 3 can be placed between the rebound plate 1 and the support plate 2 at any height suitable for practice, allowing training and no restrictions on usage scenarios. This technical solution has a simple structure, low cost, is easy to carry, is more flexible to use, and is highly practical.

The deflection plate 1 and the support plate 2 are connected by a damping hinge 3, which provides sufficient damping force to maintain a sufficiently strong fixed angle between the deflection plate 1 and the support plate 2. If the manual striking force is greater than the damping force, the included angle θ between the deflection plate 1 and the support plate 2 will fluctuate.

Preferably, the inclination angle of the deflection plate 1 is fixed, and the damping hinge 3 is selected to have a damping torque of 1.0-1.8N.m and weight so that the magnitude of the inclination angle can be easily adjusted, and can be operated by an appropriate person. As shown in Figures 7 and 8, in the case of a tabletop type, when the left and right continuous position angle swing mechanism 6 is not adopted, the second end plate of the damping hinge 3 and the end of the deflection plate 1 are fixedly connected, and the first end plate of the damping hinge 3 and the support plate 2 are manufactured as an integrated unit, simplifying the manufacturing procedure and costs without compromising the performance of use. It also reduces the volume (thickness) of the product.

Example 2:
This embodiment is optimized based on the above embodiment 1.
As shown in Figures 2 and 4, a left-right continuous position angle swing mechanism 6 is also included, which is installed on a support plate 2, and a driven end of the left-right continuous position angle swing mechanism 6 is fixedly connected to a first end plate of a damping hinge 3, and the left-right continuous position angle swing mechanism 6 drives the rebound plate 1. A continuous swing angle P is provided in the left-right direction from the rebound plate 1 to the support plate 2. The left-right continuous position angle swing mechanism 6 is designed to increase the randomness of the return after hitting, and the randomness of the return randomly generates serves and counterattacks of various courses, maximally approaching the actual state of table tennis.

The left-right continuous position angle swing mechanism 6 drives the continuous swing angle P of the deflection plate 1 and support plate 2 in the left-right direction, and the maximum angle (swing angle P) for swinging to the left and right is 38 degrees. As shown in Figure 22, taking the right-handed grip as an example, swinging to the left will result in a backhand serve, return, and backhand shot, while swinging to the right will result in a forehand serve, return, and forehand shot. When the continuous swing action of the left-right continuous position angle swing mechanism 6 occurs, the surface of the deflection plate 1 swings continuously at different angles, allowing serves and return shots from both the left and right hands to be made from a variety of position angles.

It should be noted that if there is no left/right continuous position angle swing mechanism 6, you can manually swing the device to the left or right side to place it in the appropriate position. As shown above, swinging to the left side will generate backhand serves, counters and backhand shots, and swinging to the right side will generate forehand serves, counters and forehand shots. The forehand and backhand training effects can be achieved in the same way.

Example 3:
This embodiment is optimized based on the above embodiment 2.
As shown in Figures 3-6, in order to make it easier to see the specific structure of the left and right continuous position angle swing mechanism 6, the bounce plate 1 is adjusted to a vertical state, and the bounce plate 1 can be adjusted to an inclined state during use, without affecting the understanding. To provide a specific left and right continuous position angle swing mechanism 6, the left and right continuous position angle swing mechanism 6 includes a DC motor 7, a rotating plate 8, an eccentric convex shaft 9 and a sliding swing plate 10, the DC motor 7 is mounted on the support plate 2, the output shaft of the DC motor 7 is connected to the rotating plate 8, and the rotating plate 8 is fixed to the eccentric convex shaft 9. One end of the sliding swing plate 10 and the support plate 2 are connected to the rotating connection position 23, the other side of the sliding swing plate 10 has a sliding slot 24, the eccentric convex shaft 9 is in the sliding slot 24, and the end of the sliding swing plate 10 close to the sliding slot 24 is fixedly connected to the first end plate of the damping hinge 3.

After the DC motor 7 is energized, it drives the turntable 8, which rotates the eccentric convex shaft 9, which continuously swings the sliding swing board 10 at the rotation connection position 23, and the sliding swing board 10 continuously swings the bounce board 1 at a fixed angle with the damping hinge 3, realizing the left and right connection. This is the effect of the angle of the continuous position swinging.

Example 4:
This embodiment is optimized based on the above embodiment 1 or 2.
As shown in Figures 9 and 10, in order to facilitate training and use without tabletop support, the ground support frame 11 and the support plate 2 are placed on the ground support frame 11, or the upper ends of the support plate 2 and the ground support frame 11 are also magnetically attracted to each other.

Example 5:
This embodiment is optimized based on the above embodiment 4.
In order to facilitate adjusting the ground support frame 11 to an appropriate height position, the ground support frame 11 includes a manual lifting rod, which is a variety of manually driven lifting structures, all of which are existing technologies and will not be limited here.

Example 6:
This embodiment is optimized based on the above embodiment 4.
In order to facilitate the stable and detachable installation of the support plate 2 and the ground support frame 11, the second suction device 13 is installed at the bottom of the support plate 2, the first suction device 12 is installed at the top end of the ground support frame 11, and the first suction device 12 and the second suction device 13 are installed at the top end of the ground support frame 11. The first suction device 12 and the second suction device 13 are both magnets.

This self-practice device can be selected from two types: a table-type device (without ground support frame 11) or a ground-based device (with ground support frame 11). Switching between the table-type device and the ground-based device is accomplished by attaching and detaching the first suction device 12 and the second suction device 13, which are respectively provided on the top of the ground support frame 11 and the bottom of the support plate 2. The table-type can be easily switched to the ground-based type, and the ground-based type can also be easily switched to the table-top type, making manual separation and installation convenient and convenient.

Example 7:
This example is optimized based on Example 1 above.
In order to produce various types of serves and returns, the bounce board 1 can be a flat plate, a round-bottomed spherical panel 15 or a square-bottomed arc-shaped plate 16, the round-bottomed spherical panel 15 includes a circular base plate and a spherical surface integrally formed with the circular base plate, and the square-bottomed arc-shaped plate 16 is a square plate. The flat plate is a flat rectangular plate or a flat circular or elliptical plate.

The size of a good flat square board or square bottom board is width 100-180mm, optimal 150mm, length 150-250mm, optimal 200mm, and the diameter of the circular bottom board of a good round bottom ball panel 15 is 150-250mm, optimal 180mm. The optimal size should not affect the normal running line of the ball after hitting, and should not affect the ball falling well on the impact surface to form the serve and return path after being thrown with the left hand, and at the same time should take into consideration the convenience of carrying and storing the tabletop device.

Example 8:
This example is optimized based on Example 1 above.
As shown in Figure 15, in order to integrate various training modes, the bounce board 1 has two panels 17, the two panels 17 are the left panel 17.1 and the right panel 17.2, and the angle between the left panel 17.1 and the right panel 17.2 is obtuse. The two panels 17 have two board surfaces for forehand and backhand serves and rebatting, which realizes the training effects of forehand and backhand serves and rebatting, and rebatting and shots.

Example 9:
This embodiment is optimized based on the above embodiment 1.
As shown in Figures 13 and 14, in order to integrate more training modes, the bounce board 1 has three panels 18, which include a middle board 18.1 and two side boards 18.2, and the angles between the two side boards 18.2 and the middle board 18.1 are obtuse angles.

The Three Panel 18 also has two board surfaces for forehand and backhand serves and returns, which realizes the ball training effect of forehand and backhand serves, returns and shots. The Three Panel 18's middle board 18.1 also allows for mid-ball training. In summary, the Three Panel 18 allows for the continuous training of forehand balls, mid-balls and backhand balls, or the continuous training of any combination of three-way balls, bringing the training extremely close to the climax of a real game.

Example 10:
This embodiment is optimized based on the above-mentioned embodiment 9.

In order to arbitrarily select the connection method between the two side boards 18.2 and the middle board 18.1 as needed, the two side boards 18.2 and the middle board 18.1 are integrally molded as shown in Figure 14. Alternatively, as shown in Figure 13, a removable button 19 is installed between the left and right sides of the two side boards 18.2 and the middle board 18.1, which can manually adjust the angle between the middle board 18.1 and the support board 2, and simultaneously change the clip angle between the two side boards 18.2, the middle board 18.1 and the support board 2, and change the inclination angle of the rebound board surface of the two side boards 18.2 and the middle board 18.1. When training, the position of the self-training device can be manually changed (as shown in Figure 22), which can form the training effect of forehand serve and rebound and backhand serve and rebound serve and rebound. This multi-board rebound board is only used in table style.

This technical solution designs two panels 17, three panels 18 or left and right continuous position angle swing mechanism 6 to generate trajectories and rebounds when hitting the ball with the left and right hands, and the swing angle (swing angle P) ranges from 0 to 38 degrees (generating a backhand ball) and 0 to -38 degrees (generating a forehand ball). In addition, if the rebound plate 1 is a flat plate and there is no left and right continuous position angle swing mechanism 6, the position of the rebound plate 1 can be moved manually to adjust the swing angle P.

The aforementioned forehand and backhand hitting training is an example of holding the racket in the right hand. Swinging the table-type device in the left hand shifts the position to the left, resulting in a backhand serve, return hit, and backhand shot, and swinging it in the right hand shifts it to the right, resulting in a forehand serve, return hit, and forehand shot.

As shown in Figure 16, the position of the table-type device on the table tennis table 20 can be changed, and one table-type device can be installed on the table tennis table 20, or multiple table-type devices can be installed to perform different training modes consecutively.

As shown in Figure 16, the table-top device and the ground-top device are positioned during the training of long ball serves and counterattacks. When there is a table tennis table and no table, the ground-top device can realize the long ball serves and the return effect for the forehand and backhand. When there is no table, the table-top device can also realize the long ball serves and the return effect and the long ball hit effect. Simply place the return board 1 on the table at the same height as the table tennis table.

When the swing angle is set at a fixed point in front or behind the table or at a fixed point in a far or near position on the ground, the manual or electric swing angle can be in the range of 0 to 38 degrees (a backhand ball occurs), or 0 to -38 degrees (a forehand ball occurs). The serve occurs when the swing angle is close to 0 degrees, and the ball is closer to the middle ball. The larger the swing angle of the rebound plate 1, the more difficult the forehand or backhand posture for the serve and rebound becomes. The hitting motion is most standardized so that the hitter moves sideways or left and right, and the hitting effect is the best.

In the above embodiment, the material of the deflection plate 1 can be selected from hard materials that are non-toxic, non-corrosive, non-irritating, and safe for users. The material can be hard wood, acrylic, electric wood or metal aluminum, and the surface of the deflection plate 1 is flat and finely bristled.

Specific usage example: Take the example of holding a ball in your left hand, throwing it back onto the board, and holding the racket in your right hand to hit the ball. According to the conventions of daily table tennis, after the opponent serves, the ball falls on your own side of the table 20, resulting in the following ball path type. See Figure 17. The specific ball path type in the figure is as follows:
Table 1

Training method 1:
Using the table-type device of the first embodiment (without the left-right continuous position angle swing mechanism, table-type manual device), for example, taking a backhand ball as an example, the inclination (angle O) of the bounce plate 1 plate surface is manually adjusted to an appropriate angle, and the table-type manual device is manually placed on the table tennis table at positions 13, 14 or 15 in FIG. 17. To receive a forehand ball sent by the "opponent", the player manually moves the table-type manual device on the table tennis table to swing it to the right and swings the bounce plate 1 plate surface at an appropriate angle (swing angle P), stands at an appropriate position on the hitting side of the opponent's table 20, holds a ball in the left hand, and throws the ball at the bounce plate 1. The table tennis ball is ejected to the left hand side by the surface of the bounce plate 1, completing a backhand serve and return from the opponent, and the opponent holding a racket in the right hand hits the ball with a backhand push block, backhand twist pull, etc. To receive a forehand ball from the "opponent", all one needs to do is manually move the table-type manual device on the table and swing it to the right hand side. To take the forehand ball from the "opponent," the player manually moves the table-type manual device on the table, swings the ball to the right side of the board of the rebound board 1 at an appropriate angle (swing angle P), and, keeping the body in place, holds the ball in the left hand and throws the ball at the rebound board 1. The table tennis ball is shot back to the right side of the board, which corresponds to the "opponent" completing a serve and return to the opponent's forehand, and the opponent holds the racket in his right hand and hits the shot ball into the opponent's table 22 with a forehand cross push or forehand pull.

Training method 2:
In the table-type device of the second embodiment (the left-right continuous position angle swing mechanism 6, abbreviated as the table-type electric device), for example, the inclination (angle θ) of the plate surface of the bounce plate 1 of the table-type electric device is adjusted manually to an appropriate angle, and then the table-type electric device is manually placed at positions 9, 10 or 11 on the table in Fig. 17, and the table-top electric unit is energized, and the bounce plate 1 starts to swing back and forth at a uniformly slow and continuous speed from left to right or right to left within the range of +38 degrees to -38 degrees in position angle, and the player stands alone at an appropriate position on the hitting side of the table tennis table 20. Holding a ball in the left hand, the player throws the ball onto the surface of the bounce plate 1, and the table tennis ball is returned to the left or right side of the teammate or the center of the court and shot out depending on the surface of the bounce plate 1 at the position angle at this moment, and a forehand, backhand or center is formed randomly depending on the position angle of the bounce plate 1, completing the "opponent". The "opponent" completes an unknown serve and return based on his/her own observation and judgment, i.e., staring at the ball, and with his/her right hand racket hits the ball discharged onto the opponent's table 22 with his/her backhand, forehand or center.

Training method 3:
Example 4 uses an optimized device based on Example 1 (without left and right continuous position angle swing mechanism, ground support platform 11, hereinafter referred to as the landing type manual device) and takes a long-handed ball as an example. Manually adjust the plate surface inclination (including angle θ) of the bounce plate 1 of the landing type manual device to an appropriate angle. Then, manually place the landing type manual device at position 8, 12 or 16 on the floor of the opponent's side, manually swing the plate surface of the bounce plate 1 to the right at an appropriate angle (corresponding to the swing angle P). Stand alone at an appropriate position on the hitting side of the opponent's table 20, hold a ball in your left hand, throw the ball to the bounce plate 1, and the ball will be shot to the forehand side by the bounce plate 1. The "opponent" will complete the serve and return of the opponent's forehand long ball, hold a racket in his right hand, and hit the shot ball with a forehand push block or a forehand pull against the opponent's forehand long ball. The "opponent" completes the serve and return of the forehand long ball to the opponent's side, and the "opponent" holds the racket in his right hand and hits the ball into the opponent's table with a forehand push block or forehand pull, or changes the position angle of the surface of the rebound board 1 (corresponding to the angle of swing P) to the left, at which point the direction of the bounce changes, but he can move his body to form a backhand stroke. He can move his body to form a backhand shot and pull it.

Training method 4:
Example 4 is an optimized device based on Example 2 (left and right continuous position angle swing mechanism 6, ground support frame 11, hereinafter referred to as the ground-based electric device), which is similar to training method 2, but in this training method, the rebound plate 1 is supported on the ground, and the "opponent" randomly emits and hits back various long balls.

Training method 5:
You will practice serving with a ball collecting net and hitting the ball back with your forehand after serving.
Two table-type devices (table-type manual devices or table-type electric devices) are placed at the forehand ball and backhand ball positions (starting table surface space in the middle), and three balls are held in the left hand. First, one ball is thrown to train the player's serve, and the first ball is collected by the ball collecting net. Then, the second ball is hit from the left hand, bounced and hit the bounce board 1, the ball is bounced back to the forehand position, and the player continues to hit the forehand, then the third ball is hit and bounced and hit the backhand position of the bounce board 1, the ball is bounced back to the backhand position, and the player continues to hit the backhand, completing the simultaneous training of serve, forehand and backhand in sequence. After the multi-ball practice, that is, it improves the level of the serve, and also improves the responsiveness of the play in the first three ball handling, and it is very easy to find and master the practical ball sense. Practicing with multiple balls can help improve your serve level and your responsiveness when returning the ball, as well as your technical level in handling three balls. It also makes it easier to find, improve, and master the feeling of hitting the ball in a real game.

Training Method 6:
Non-table tennis field practice and table tennis shooting game. As shown in Figure 18, you can practice various serves, hits and shots by using a dining table or desk in the living room (the height is the same as the table tennis table) and a landing device.

As shown in Figure 19, you can practice various serves, returns, and shots by using a combination of a headboard (folding screen) and cardboard (high mat) along with a table-type device (a table-type manual device or a table-type electric device).

As shown in Figure 20, you can practice various serves, returns, and shots by using a combination of a headboard (folding screen) and cardboard (high mat) and a landing device (manual landing device or electric landing device).

As shown in Figure 21, training can also be performed by directly connecting to an outdoor ball collection network.

In summary, this device is convenient for beginners to freely choose the appropriate training mode. Enthusiasts who want to learn and improve their table tennis skills do not need to go to a place like a stadium or hire a coach, but can use this utility model alone at home or in a free ball room to meet the needs of learning and improving table tennis skills. Through this utility model, you can practice the currently popular forehand ball, backhand ball, backhand ball, quick push, rubbing, rotating ball, near and far billiards, etc., which is a very suitable tool for the basic practice of table tennis sports. It helps you quickly find various correct hitting feel. For example, pulling the ball with the front and back hands, pushing quickly, rubbing and rotating the ball, pulling the ball at a close distance, etc.

This utility model allows for various training modes, and is very close to the various skilled serves that table tennis enthusiasts use in their daily lives. It is not limited by the location (living room, at home, hotel room on a business trip, in the park, in the suburbs), and it is not limited by the presence or absence of a table tennis table. This utility model is simple, concise, and easy, and allows one person to practice complex serves and hitting the ball at the same time. The motion speed and motion inertia of the serve are very close to the motion state of the ball when hitting it in daily life. This utility model is easy to train, convenient to operate, and has low cost (price), which stimulates interest in table tennis training and makes people into table tennis lovers. Furthermore, since it is very close to the daily hitting movements of table tennis enthusiasts, the hitting movements of table tennis enthusiasts who use this utility model can be quickly standardized, and their table tennis skills will also improve rapidly.

When used with the ball collecting net, you can practice serving and hitting very efficiently. If you need to start playing singles or doubles immediately after practice, the ball collecting net can be instantly stored under the table, taking up no space and wasting almost no time. The ball collecting net allows you to switch between one-sided serves and hitting and double hitting in seconds, which is very convenient, easy and time-saving.

Buying a decent serving device is dozens of times more expensive than a utility model. Ball failure sometimes occurs (affecting the mood of practice and sometimes giving up). It is not portable and takes up a lot of space. It is not easy to hire a one-on-one table tennis coach. Among these utility models, the most commonly used desktop device has a volume of 200*150*38mm (smaller than half the size of an A4 sheet of paper) and weighs 600 grams. It is very convenient and easy to carry a set of such table tennis luck practice tools. As long as time allows, you can flexibly arrange training.

In table tennis, the falling point, rotation, and trajectory of the game's luck are ever-changing and countlessly diverse, allowing fans to feel different changes at every moment of playing table tennis. This is the mystery, fun, and charm of table tennis. Enthusiasts are deeply fascinated. The changes in position point, position angle, and board surface inclination described in the description of this utility model are crude examples, and the results of combining these three changes are infinite.

This utility model unveils a new table tennis training device and combines entertainment use. One of the key features is that the user can complete various changes of serves and counterattacks other than the spin ball, net touch, and edge ball made by the other player on the table tennis table of the user's side by himself. The "serve, counterattack" and the hit of the user are very close to the daily table tennis state, so the user can easily get a feel for the ball. The second key feature is that it is inexpensive and not limited by the court. The user manually places this utility model at different positions on the table tennis table or the ground of the table tennis table, throws the ball to the ball and counterattack board 1 with the left hand, and swings the racket normally with the right hand to hit the ball, which is an action that both can complete to complete daily table tennis exercise by one person. By combining the ball collecting net, the messy scattering of multiple balls can be eliminated, and one person can practice improving continuous table tennis skills.

This utility model is a skill-improvement exercise for beginner and intermediate level table tennis players, which allows players to complete all movements except for opponent's non-spinning balls, net touches and edge balls. It includes various serves and returns using left and right grips, such as close ball, no placed ball (forehand and backhand fast pick), placed ball, placed ball, long ball, backhand ball (backhand pull, backhand twist, backhand tear), forehand ball, forehand and backhand pull, etc., as shown in Figure 16.
This utility model is inexpensive, small in volume, very easy to use, store and carry. In this utility model, a single person serves and hits the ball using a table-type device or a landing-type device outside the edge line of the player's side of the table, and collects each hit with a ball collection net (not shown in the figure) installed on the edge line 21 of the opponent's side. Throwing the ball at the ball-tossing board 1 with one hand is the same as throwing the ball to the best space position when serving, and the hand also makes the same movement as the toss.

This utility model allows you to practice serving and countering on a table tennis table, which is close to the actual serving and countering. If you live at home or in an apartment complex (chair, bed, dining table, desk, vacant lot), you can achieve the same practice effect as in a ball court or training center, save time, transportation costs, and practice costs, and share the joy of table tennis with family and friends. For beginner and intermediate table tennis practice, you can easily serve and counter various balls other than spin balls, edge balls, and tennis balls without the court restrictions of personnel.

The outstanding comprehensive creative characteristics of this utility model make it easier to transform interest in table tennis from an idea to reality, and have the effect of making the sport of table tennis more widely popular, laying a very good material foundation for more people around the world to fall in love with table tennis.

Finally, it should be noted that the above is a preferred embodiment of this utility model, and is not used to limit the scope of protection of this utility model. Any modifications, equivalent replacements, improvements, etc. within the spirit and principles of this utility model are included in the scope of protection of this utility model.

1. Rebound plate, 2. Support plate, 3. Damping hinge, 6. Left and right continuous position angle swing mechanism, 7. DC motor, 8. Rotating plate, 9. Eccentric convex shaft, 10. Slide swing board, 11. Ground support frame, 12. First suction device, 13. Second suction device, 14. Flat plate, 15. Round bottom spherical panel, 16. Square bottom arc-shaped panel, 17. Both panels, 17.1. Left panel, 17.2. Right panel, 18.1. Third panel, 18.1. Middle plate, 18.2. Side board, 19. Removable button, 20. Table on your side, 21. End line of opponent's table, 22. Opponent's table, 23. Rotation connection position, 24. Slide groove

Claims (10)

The self-training device for returning various hits in table tennis includes a rebound plate, a support plate, and a damping hinge, a first end plate of the damping hinge is fixed to one end of the support plate, a second end plate of the damping hinge is fixed to one end of the rebound plate, and the angle θ between the rebound plate and the support plate is set to any angle by the damping hinge. The self-training device for returning various hits in table tennis described in claim 1 further includes a left and right continuous position angle swinger, which is installed on a support plate and whose driven end is fixed to a first end plate of the damping hinge, and which drives the return plate continuously to a vibration angle P in the left and right direction of the support plate. The self-training device for returning various hits in table tennis described in claim 2 includes a left-right continuous position angle swinger including a DC motor, a turntable, an eccentric convex shaft, and a sliding swing plate, the DC motor is attached to a support plate, its output shaft is connected to the turntable, the turntable is fixed to the eccentric convex shaft, one end of the sliding swing plate is rotatably connected to the support plate, and the other end is provided with a sliding groove, the eccentric convex shaft is located in the sliding groove, and one end of the sliding swing plate close to the sliding groove is fixed to the first end plate of the damping hinge. The self-training device for returning various hits in table tennis as described in claim 1 or 2 further includes a ground support frame, and the support plate is disposed on the ground support frame, or the upper ends of the support plate and the ground support frame are magnetically attracted to each other. The self-training device for returning various hits in table tennis described in claim 4 has a ground support frame that includes a manual lifting bar. The self-training device for returning various hits in table tennis described in claim 4 has a second suction device provided at the bottom of the support plate and a first suction device provided at the upper end of the ground support frame, and the first suction device is attached to the second suction device. The self-training device for returning various hits in table tennis described in claim 1 is characterized in that the return plate is a flat plate, a spherical circular base plate, or an arc-shaped square base plate. The spherical circular base plate includes a circular base plate and a spherical surface integrally molded thereon, and the square base plate includes a square base plate and an arc surface integrally molded thereon. The self-training device for returning various hits in table tennis described in claim 1 is characterized in that the return plate includes a left panel and a right panel, and the angle between the left panel and the right panel is an obtuse angle. The self-training device for returning various hits in table tennis described in claim 1 is characterized in that the hitting board and the hitting board include an intermediate board and two side boards, and the angle between the two side boards and the intermediate board is an obtuse angle. The self-training device for returning various hits in table tennis described in claim 9 is characterized in that the two side panels and the middle panel are integrally molded, or that removable buttons are provided on the left and right sides of the two side panels and the middle panel.

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