CN110721453A - Multifunctional tennis training device - Google Patents

Abstract

The multifunctional tennis trainer includes an installation bracket, two uprights are fixedly arranged on the inner side of the baffle plate, a connecting rod is arranged between the two uprights, a hinge shaft is pierced through the upright column, the hinged shaft passes through the upright column and the connecting rod, and the connecting rod can be Rotating around the hinge axis, the tail end of the connecting rod is arranged above the baffle, the end of the connecting rod is fixedly connected with the tennis ball, and the outer side of the baffle is also provided with an elastic rope, and the elastic rope passes through the limit hole at both ends and is fixed to the installation bracket The connecting rod is also provided with a hinge hole, the hinge hole is elongated, the hinge shaft can move back and forth in the hinge hole, the front and rear ends of the hinge hole are connected with pressure sensors, and the pressure sensors are connected with sound alarms. The invention has the following beneficial effects: it can orientately practice the forehand and backhand swing movements, and during the practice process, the swing movements are corrected to make the swing out of a regular parabola, and if the swing is wrong, the beat will not move. , or an alarm will sound to prompt.

Description

Multifunctional tennis trainer

technical field

The invention belongs to the field of tennis trainers, in particular to a multifunctional tennis trainer.

Background technique

Searching for proper terms such as tennis trainers and auxiliary equipment through the Internet and CNKI and other tools, we found that there are roughly two types of trainers in China, which are: (1) Rod and tube tennis trainers (2) Rope-type tennis trainers Tennis trainer.

The first type is a repeatable hitting device with a solid base and a tube on the upper end, which has many varieties and occupies a small area; And it's not flexible, and it still needs to pick up the ball after hitting.

Judging from the actual effect of tennis practitioners' practice, the first device is equivalent to hitting a ball at a fixed position. The efficiency of practice is to increase the combination of swinging and hitting the ball. The disadvantage is that because the hitting point is fixed and the choice of hitting point is single, it can only be used as a freehand technique practice. He doesn't know how to swing the racket and hit the ball so that he can hit the correct parabola, so every swing of his racket is random and cannot play a very good role in teaching and adjustment. It can only be practiced at the beginner stage.

The second device is more inconvenient than the first device. It needs to constantly pick up the ball, and the position of the shot cannot be determined.

The existing technical auxiliary products have a single function, which interrupts the generalization and differentiation process of tennis technology learning, which is not conducive to the finalization of the action, the improvement of the level, and restricts the use of the crowd. From the perspective of "rotation" and "overall force", there is a lack of auxiliary exercise products that focus on technical details, which is not conducive to the use of technical improvement people. Generally, tennis must play a parabola according to a position before it can cross the net, so practice freely. Many of them are useless, and the practitioner must constantly correct their swing position during the practice process, so that they can play the parabola of tennis in order to play an effective role in teaching correction.

There is no similar product on the market.

SUMMARY OF THE INVENTION

Aiming at the deficiencies in the prior art, the present invention provides a multifunctional tennis training device, which can solve the problem that the existing tennis training device cannot correct the position of the swing force, resulting in useless exercise.

In order to solve the above-mentioned technical problems, the present invention is solved by the following technical solutions: a multifunctional tennis trainer, including an installation bracket, the installation bracket is composed of a quadrilateral fence, and the quadrilateral fence includes an inclined baffle, so Two uprights are fixed on the inner side of the baffle, and a connecting rod is arranged between the two uprights. It can be rotated around the hinge shaft, the tail end of the connecting rod is arranged above the baffle, the end of the connecting rod is fixedly connected with the tennis ball, and the outer side of the baffle is also provided with an elastic rope. The tail end of the connecting rod is provided with a limit hole, the elastic rope is fixed on the installation bracket through the two ends of the limit hole, and the connecting rod is also provided with a hinge hole, and the hinge hole is in the shape of a long strip. The hinge shaft can move back and forth in the hinge hole, the rear end of the hinge hole is connected with a pressure sensor, and the pressure sensor is connected with a sound alarm. The traditional device for practicing tennis is changed. In order to better correct the posture of practicing tennis, only a blow within a range is effective, thus playing a correcting role.

Preferably, the pressure sensor is in the shape of a semi-circular arc and is arranged at the end of the hinge hole, the alarm is arranged in the connecting rod, and the side wall of the connecting rod is provided with a sound outlet. When the hitting position is wrong, an alarm sound will sound, which means that the swing hitting position is wrong and the swing position needs to be adjusted.

Preferably, the baffle is inclined, and the inclined surface is in close contact with the connecting rod. The baffle can limit the position of the connecting rod, so that it always maintains an included angle of 45 degrees with the horizontal plane in the initial state.

Preferably, the end of the connecting rod and the tennis ball are fixedly connected by a spring, a part of the spring is clipped into the tennis ball, and the other part is welded with the connecting rod. The tennis ball and the connecting rod are softly connected, making it more comfortable to hit.

Preferably, an elastic sponge pad is arranged between the column and the connecting rod. Reduce noise generation and damage to the device.

Preferably, a mounting block is further provided on the mounting bracket, an adjusting bolt is passed through the mounting block, and the mounting position of the mounting block is perpendicular to the linear position of the connecting rod. Further savings in floor space.

Compared with the prior art: the forehand and backhand swing movements can be practiced in a directional manner. During the practice, the swing movements are corrected to make them swing out of a normal parabola. If the swing is wrong, the beat will not move. , or an alarm will sound to prompt.

Description of drawings

FIG. 1 is a schematic perspective view of the present invention.

2 is a cross-sectional view of a connecting rod of the present invention.

Figure 3 is one of the enlarged views of the hinge hole of the present invention.

FIG. 4 is the second enlarged view of the hinge hole of the present invention.

FIG. 5 is a schematic diagram of the force of the side swing of the present invention.

FIG. 6 is a schematic diagram of the force of an effective shot of the present invention.

FIG. 7 is a schematic diagram of the force of the null shot of the present invention.

Detailed ways

The present invention will be described in further detail below with reference to the specific embodiments and accompanying drawings.

The multifunctional tennis training device includes an installation bracket 1, the installation bracket 1 is composed of a quadrilateral fence, the quadrilateral fence includes an inclined baffle 13, and two uprights 2 are fixedly arranged on the inner side of the baffle 13 , a connecting rod 3 is arranged between the two uprights 2, the upright post 2 is provided with a hinge shaft 9, the hinged shaft 9 passes through the upright post 2 and the connecting rod 3, and the connecting rod 3 can be wound around The hinge shaft 9 rotates, the tail end of the connecting rod 3 is arranged above the baffle 13, the end of the connecting rod 3 is fixedly connected with the tennis ball 4, and the outer side of the baffle 13 is also provided with an elastic rope 6 , the tail end of the connecting rod 3 is provided with a limit hole 8, the elastic rope 6 is fixed on the mounting bracket 1 through the two ends of the limit hole 8, and the connecting rod 3 is also provided with a hinge hole 7 , the hinge hole 7 is elongated, the hinge shaft 9 can move back and forth in the hinge hole 7, the rear end of the hinge hole 7 is connected with a pressure sensor 10, and the pressure sensor 10 is connected to the sound The alarm 11, the pressure sensor 10 is in the shape of a semi-circular arc, and is arranged at the tail of the hinge hole 7, the alarm 11 is arranged in the connecting rod 3, and the side wall of the connecting rod 3 is provided with a sound outlet, the The baffle 13 is inclined, and the inclined surface is in close contact with the connecting rod 3. The end of the connecting rod 3 and the tennis ball 4 are fixedly connected by a spring, a part of the spring is clipped into the tennis ball 4, and the other part is connected with the connecting rod 3. For welding, an elastic sponge pad is provided between the column 2 and the connecting rod 3, and a mounting block 5 is also provided on the mounting bracket 1. The mounting block 5 is provided with an adjustment bolt. The installation position of the block 5 is perpendicular to the linear position of the connecting rod 3 .

During use, the product is first installed according to the height of the user. The installation block 5 is arranged on a railing of the quadrilateral fence and is perpendicular to the baffle 13 .

The mounting block 5 is provided with adjustment bolts. The adjustment bolts are aligned with the holes on the wall. The adjustment bolts are screwed into the holes on the wall and screwed together. After screwing, the docking is completed. The height is divided, so the mounting bracket 1 can be fixed at a suitable height.

Moreover, the mounting block 5 and the baffle 13 are vertically arranged, which greatly reduces the footprint of the mounting bracket 1. During the hitting process, the tennis ball 4 can be hit, and the end of the connecting rod 3 and the tennis ball 4 are fixedly connected by springs. A part of the spring is snapped into the tennis ball 4 , and the other part is welded with the connecting rod 3 .

The tennis ball 4 receives the correct force, as shown in Figure 6, the swing direction is between 0 degrees and 45 degrees, in order to hit a parabola, which is the force that can make the connecting rod 3 rotate counterclockwise around the hinge axis 9, this is the normal strike of tennis angle, at this time, the hinge shaft 9 is located just above the hinge hole 7, and only rotates and cannot move.

However, many people in the practice process, because they are still novice, if they do not hit a parabola when hitting the tennis ball 4, then the connecting rod 3 will not rotate around the hinge axis 9.

There are the following two situations: 1. As shown in Figure 5, if the tennis ball 4 is hit from the side, the tennis ball 4 will be deflected with the connecting rod 3, and the deflected connecting rod 3 will abut on the column 2, and the connecting rod will be deflected. An elastic sponge pad is arranged between 3 and the column 2 to reduce looseness and noise. At this time, since the connecting rod 3 cannot be rotated, it means that the user does not play the parabola that needs to be practiced.

2. The angle of hitting the tennis ball is between -45 degrees and 0 degrees. Due to the swing in this range, an upward and leftward force, an upward force, will be generated. Then the tennis ball 4 with the connecting rod 3 cannot move because the connecting rod 3 cannot be moved. The rod 3 is already at the top of the hinge hole 7, and the leftward force is not strong enough, so the connecting rod 3 cannot rotate counterclockwise; when the strike angle is between 45 degrees and 135 degrees, a downward force will be generated. When enough downward force is generated, the connecting rod 3 will move downward, and the connecting rod 3 will reach the bottom of the hinge hole 7. At this time, the gravity of the connecting rod 3 acts on the pressure sensor 10, and the pressure sensor 10 is connected to the sound Once the alarm 11 is pressed, the alarm 11 will sound immediately to remind the practitioner that the swinging posture is incorrect.

In each striking process, there is no need to manually restore the position of the connecting rod 3, because the end of the connecting rod 3 is provided with a limit hole 8, and the elastic rope 6 passes through the limit hole 8 and is fixed to the mounting bracket at both ends. 1, the elastic rope 6 has a restoring force, and whether the connecting rod 3 rotates or the connecting rod 3 descends, it can be restored to its original state under the action of the elastic rope 6.

Therefore, the device can effectively reduce the floor space, and can be installed flexibly with the change of height. After installation, in the swing process, the parabola of tennis ball 4 can only be played between 0 degrees and 45 degrees in Figure 6, and the posture It is correct, other postures are either throwing the ball too high or pressing the ball, which is not conducive to the novice's learning of the overall force posture.

The protection scope of the present invention includes but is not limited to the above embodiments, the protection scope of the present invention is subject to the claims, and any replacement, deformation, and improvement that are easily thought of by those skilled in the art made by the present technology all fall within the scope of the present invention. protected range.

Claims (6)

1. A multifunctional tennis trainer, characterized in that it comprises an installation bracket (1), the installation bracket (1) is composed of a quadrilateral fence, and the quadrilateral fence includes an inclined baffle (13), the Two uprights (2) are fixedly arranged on the inner side of the baffle (13), a connecting rod (3) is arranged between the two uprights (2), and a hinge shaft (9) is pierced through the upright (2), so The hinge shaft (9) passes through the column (2) and the connecting rod (3), and the connecting rod (3) can rotate around the hinge shaft (9). The tail end of the connecting rod (3) It is arranged above the baffle (13), the end of the connecting rod (3) is fixedly connected with the tennis ball (4), and the outer side of the baffle (13) is also provided with an elastic rope (6). The tail end of the connecting rod (3) is provided with a limiting hole (8), the elastic rope (6) is fixed on the mounting bracket (1) through the two ends of the limiting hole (8), and the connecting rod (3) ) is also provided with a hinge hole (7), the hinge hole (7) is elongated, the hinge shaft (9) can move back and forth in the hinge hole (7), the hinge hole (7) ) is connected with a pressure sensor (10) at the rear end, and the pressure sensor (10) is connected with a sound alarm (11). 2 . The multifunctional tennis training device according to claim 1 , wherein the pressure sensor ( 10 ) is in the shape of a semi-circle and is arranged at the tail of the hinge hole ( 7 ), and the alarm ( 11 ) It is arranged in the connecting rod (3), and the side wall of the connecting rod (3) is provided with a sound outlet. 3 . The multifunctional tennis training device according to claim 1 , wherein the baffle plate ( 13 ) is inclined, and the inclined surface is in close contact with the connecting rod ( 3 ). 4 . 4. The multifunctional tennis trainer according to claim 1, wherein the end of the connecting rod (3) and the tennis ball (4) are fixedly connected by a spring, and a part of the spring is clipped into the tennis ball (4) Inside, the other part is welded with the connecting rod (3). 5 . The multifunctional tennis training device according to claim 1 , wherein an elastic sponge pad is arranged between the upright column ( 2 ) and the connecting rod ( 3 ). 6 . 6 . The multifunctional tennis training device according to claim 1 , wherein a mounting block ( 5 ) is further provided on the mounting bracket ( 1 ), and an adjusting bolt is pierced in the mounting block ( 5 ). 7 . , the installation position of the installation block (5) is perpendicular to the linear position of the connecting rod (3).

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