Tennis training device
Through the combination of a cam-driven ball-swinging device and an elastic rod and steel wire, the random movement in a tennis game is simulated, solving the problem that traditional training devices cannot simulate the real environment and improving the effect of tennis pace training.
Patent Information
- Application Number
- CN202422630738.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Traditional tennis pace training devices cannot simulate the real game environment and the training effect is not obvious.
The ball-swinging device is driven by a cam, and the irregular shaking of the tennis ball is driven by an elastic rod and a steel wire to simulate the random movement of the tennis ball in the game. The combined movement of the cam and the pendulum rod is used to realistically simulate the movement of the tennis ball.
The authenticity of tennis pace training is achieved, the training effect is improved, and the spatial perception ability of the trainees is enhanced.
Smart Images
Figure CN223416697U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of sports equipment, in particular to a tennis training device. Background Art
[0002] Tennis footwork is a very important basic tennis technique. Without fast, accurate and precise footwork, the completion of various hitting techniques will inevitably be affected. Tennis footwork is a skill that can improve spatial perception. Therefore, targeted tennis footwork training is very important. Traditional footwork training cannot simulate the real game environment and the training effect is not obvious. A device is needed to solve the above problems. Summary of the Invention
[0003] In response to the above-mentioned deficiencies in the prior art, the present invention provides a tennis training device that uses a swing rod to drive tennis balls that move randomly in space to appear in front of the trainee, truly simulating the movement of tennis balls in a game and simulating the real environment of a tennis game to perform tennis pace training.
[0004] The purpose of the present invention is to be achieved through the following technical solutions:
[0005] A tennis training device includes a base, which is rotatably connected to a set of cams. The cams drive a set of ball-swinging devices to flip up and down. The ball-swinging devices rotate the tennis balls up and down via elastic rods and steel wires. The base is provided with a set of curved grooves on its upper portion to allow the elastic rods to swing left and right. A frame bearing seat at the rear of the base is rotatably connected to a shaft. One side of the shaft is connected to the output shaft of a motor. The motor is fixedly connected to a motor plate outside the frame bearing seat. The shaft is fixedly connected to a set of cams. The cams are divided into two parts: a lower surface and an upper surface. The cams are designated, from left to right, as the first cam, the second cam, the third cam, and the fourth cam. The lower surfaces of the first, third, second, and fourth cams are phase-shifted by 90 degrees.
[0006] The ball-swinging device includes a slide seat, a slide groove in the middle of the slide seat is slidably connected to a slider at the bottom of the movable seat, a spring is connected between the movable seat and the spring plate at the bottom of the slide seat, a connecting plate is provided on one side of the movable seat, the connecting plate axis on the side of the connecting plate is hinged to the first hole of the rocker at the bottom of the rocker, the second hole of the rocker above the first hole of the rocker is hinged to one side of the connecting rod, and the other side of the connecting rod is hinged to the slide hinge seat on the side of the slide seat.
[0007] A group of ball-throwing devices corresponding to each cam is fixedly connected to the side surface of the machine base, and each cam is slidably connected to a cam rod at the lower part of the moving base.
[0008] An elastic rod is provided on the outside of the swing rod, a steel wire is connected to the outside of the elastic rod, a tennis ball is connected to the outside of the steel wire, the elastic rod is made of rubber, a driving plate corresponding to each swing rod is provided on the rear side of the machine base, a wavy curved groove is provided in the middle of each driving plate, and a trumpet is provided on the front side of the driving plate. When the swing rod is erected, the elastic rod swings irregularly along the curved groove under the guidance of the trumpet.
[0009] Beneficial effects:
[0010] When the cam of the present invention rotates, when the high surface contacts the cam rod, the high surface lifts the moving seat, the moving seat is in a high position, and the spring is stretched. At this time, the rocker arm is in a rear horizontal position under the action of the moving seat and the connecting rod. When the cam rod slides from the high surface to the bottom of the low surface, the rocker arm is in a vertical upward position under the action of the moving seat, the connecting rod and the spring. The phases of the low surfaces of the first cam, the third cam, the second cam and the fourth cam are ninety degrees apart in sequence. When the shaft drives the cam to rotate, the low surfaces of the first cam, the third cam, the second cam and the fourth cam rotate to the upper part in sequence, and the moving seats corresponding to the first cam, the third cam, the second cam and the fourth cam drive their respective rocker arms to stand up in sequence.
[0011] The elastic rod made of elastic material of the present invention enters the curved groove under the guidance of the trumpet mouth, and the wavy curved groove drives the elastic rod to swing irregularly. The upper steel wire further produces the effect of irregular swinging under the drive of the elastic rod, so that the trajectory of the tennis ball on the upper part of the steel wire appears to be very random in space. When the cam rotates, the first cam, the third cam, the second cam, and the fourth cam drive the corresponding swing rods to stand up in turn. The swing rods that move left and right drive their respective tennis balls that move randomly in space to appear in front of the trainee, which truly simulates the movement of the tennis ball in the game, and the trainee's steps can achieve the best training effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic structural diagram of the tennis training device of the present invention.
[0013] Figure 2 This is a schematic diagram of the base structure of the present invention.
[0014] Figure 3 This is a schematic diagram of the cam structure of the present invention.
[0015] Figure 4 This is a structural schematic diagram of the ball-swinging device of the present invention.
[0016] Figure 5 This is a schematic diagram of the slide structure of the present invention.
[0017] Figure 6 This is a structural schematic diagram of the mobile seat described in the present invention.
[0018] Figure 7 Schematic diagram of the swing arm structure of the present invention. DETAILED DESCRIPTION
[0019] The present invention will be further described in detail below with reference to the accompanying drawings and examples:
[0020] refer to Figure 1 A tennis training device includes a base 110, which is rotatably connected to a group of cams 120. The cams 120 drive a group of ball-swinging devices 200 to flip up and down. The ball-swinging devices 200 drive the tennis balls to flip up and down through elastic rods and steel wires. A group of curved grooves are provided on the upper part of the base 110 to allow the elastic rods to swing left and right.
[0021] refer to Figure 2 、 3 The frame bearing seat 111 on the rear side of the machine base 110 rotates to connect the shaft 130, one side of the shaft 130 is connected to the output shaft of the motor 140, and the motor 140 is fixedly connected to the motor plate 112 on the outside of the frame bearing seat 111. The shaft 130 is fixedly connected to a group of cams 120, and the cam 120 is divided into two parts: a low surface 125 and a high surface 126. The cams 120 are called the first cam 121, the second cam 122, the third cam 123, and the fourth cam 124 from left to right. The phases of the low surfaces 125 of the first cam 121, the third cam 123, the second cam 122, and the fourth cam 124 are ninety degrees apart.
[0022] refer to Figure 4 、 5 , 6, 7, the ball-swinging device 200 includes a slide 210, a slide groove 211 in the middle of the slide 210 is slidably connected to the slider 221 at the bottom of the movable seat 220, a spring 250 is connected between the movable seat 220 and the spring plate 212 at the bottom of the slide 210, a connecting plate 223 is provided on one side of the movable seat 220, a connecting plate shaft 224 on the side of the connecting plate 223 is hinged to the rocker rod one hole 231 at the bottom of the rocker rod 230, a rocker rod two hole 232 above the rocker rod one hole 231 is hinged to one side of the connecting rod 240, and the other side of the connecting rod 240 is hinged to the slide hinge 213 on the side of the slide 210.
[0023] refer to Figure 1The machine base 110 is fixedly connected with a set of ball throwing devices 200 corresponding to each cam 120 on the side, and each cam 120 is slidably connected with a cam rod 222 at the lower part of a moving seat 220. When the cam 120 rotates, the high position surface 126 will lift the moving seat 220 when the high position surface 126 contacts the cam rod 222, and the moving seat 220 is at the high position, and the spring 250 is stretched, and at this time, the swing rod 230 is at the rear horizontal position under the action of the moving seat 220 and the connecting rod 240, and when the cam rod 222 slides from the high position surface 126 to the bottom of the low position surface 125, the swing rod 230 is at the vertical upward position under the action of the moving seat 220, the connecting rod 240 and the spring 250, and the low position surfaces 125 of the first cam 121, the third cam 123, the second cam 122 and the fourth cam 124 are sequentially different by ninety degrees, and when the shaft 130 drives the cam 120 to rotate, the low position surfaces 125 of the first cam 121, the third cam 123, the second cam 122 and the fourth cam 124 are sequentially rotated to the upper part, and the moving seats 220 corresponding to the first cam 121, the third cam 123, the second cam 122 and the fourth cam 124 sequentially drive the respective swing rods 230 to stand up.
[0024] Reference Figure 7 The outer side of the swing rod 230 is provided with an elastic rod 233, the outer side of the elastic rod 233 is connected with a steel wire 234, the outer side of the steel wire 234 is connected with a tennis ball 235, the elastic rod 233 is made of elastic rubber material, the steel wire 234 is made of steel wire with good elasticity, the rear side of the machine base 110 is provided with a drive plate 113 corresponding to each swing rod 230, the middle of each drive plate 113 is provided with a wavy curved groove 114, and the front side of the drive plate 113 is provided with a horn 115, and when the swing rod 230 stands up, the elastic rod 233 irregularly swings along the curved groove 114 under the guidance of the horn 115. The elastic rod 233 made of elastic material enters the curved groove 114 under the guidance of the horn 115, the wavy curved groove 114 drives the elastic rod 233 to irregularly shake, and the upper part of the steel wire 234 further produces the effect of irregular shaking under the driving of the elastic rod 233, so that the tennis ball 235 at the upper part of the steel wire 234 has great randomness in the trajectory in space, and when the cam 120 rotates, the first cam 121, the third cam 123, the second cam 122 and the fourth cam 124 drive the corresponding swing rods 230 to stand up in turn, and the swing rods 230 that swing left and right drive the respective tennis balls that randomly move in space to appear in front of the trainer, and the movement of the tennis ball in the game is truly simulated, and the pace of the trainer can be best trained.
Claims
1. A tennis training device, characterized in that : It includes a machine base (110), the machine base (110) is rotatably connected to a group of cams (120), the cams (120) drive a group of ball-throwing devices (200) to flip up and down, and a curved groove (114) is provided on the upper part of the machine base (110); the frame bearing seat (111) on the rear side of the machine base (110) is rotatably connected to the shaft (130), one side of the shaft (130) is connected to the output shaft of the motor (140), the motor (140) is fixedly connected to the motor plate (112) outside the frame bearing seat (111), the shaft (130) is fixedly connected to a group of cams (120), the cams (120) are divided into a low surface (125) and a high surface (126), and the cams (120) are, from left to right, a first cam (121), a second cam (122), a third cam (123), and a fourth cam (124).
2. A tennis training device according to claim 1, characterized in that The ball-swinging device (200) includes a slide seat (210), a slide groove (211) in the middle of the slide seat (210) is slidably connected to a slider (221) at the bottom of a movable seat (220), a spring (250) is connected between the movable seat (220) and a spring plate (212) at the bottom of the slide seat (210), a connecting plate (223) is provided on one side of the movable seat (220), a connecting plate shaft (224) on the side of the connecting plate (223) is hinged to a first hole (231) of the lower part of the swing rod (230), a second hole (232) of the upper part of the first hole (231) of the swing rod is hinged to a connecting rod (240), and the other side of the connecting rod (240) is hinged to a slide hinge seat (213) on the side of the slide seat (210).
3. A tennis training device according to claim 2, characterized in that A set of ball-throwing devices (200) is fixedly connected to the side of the machine base (110), and each cam (120) is slidably connected to a cam rod (222) at the lower part of the movable base (220).
4. A tennis training device according to claim 1, characterized in that An elastic rod (233) is provided on the outside of the swing rod (230), a steel wire (234) is connected to the outside of the elastic rod (233), a tennis ball (235) is connected to the outside of the steel wire (234), and the elastic rod (233) is made of rubber. A driving plate (113) corresponding to each swing rod (230) is provided on the rear side of the machine base (110), a wave-shaped curved groove (114) is provided in the middle of each driving plate (113), and a bell mouth (115) is provided on the front side of the driving plate (113).