Tennis service training device
By designing a tennis serve training device with controllable speed and direction, the problem of monotonous serves in traditional devices has been solved, achieving greater variability in serves and improving training effectiveness.
Patent Information
- Application Number
- CN202422637677.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Traditional tennis serve training devices have a single serve direction and fixed speed, which cannot realistically simulate a human serve, resulting in poor training effects.
A tennis serve training device was designed, comprising a base, a launcher, a swinging device, a power unit, and a direction-changing device. By adjusting the moving speed and direction of the launcher rod, combined with the rotation of the direction-changing plate, the serve speed and direction can be varied.
It achieves controllability in serve speed and direction, enhances the randomness and effectiveness of training, and improves the practicality of training.
Smart Images
Figure CN223601963U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of sports equipment, in particular to a tennis ball serving training device. BACKGROUND
[0002] In the process of tennis training, the trainer often exercises with the help of a serving device in the absence of the assistance of a third party. The traditional tennis ball serving training device lacks variation in serving direction and has fixed serving speed, and cannot truly simulate human serving, so the training effect is not good. A device is needed to solve the above problems. SUMMARY
[0003] The present application provides a tennis ball serving training device with controllable serving speed and variable serving direction to solve the above problems in the prior art.
[0004] The object of the present application is achieved by the following technical solutions:
[0005] A tennis ball serving training device, comprising a base, the base is hinged to a launching seat, a swing device is arranged between the base and the launching seat to swing the launching seat up and down, the launching seat is slidingly connected to a launching rod, a launching spring is arranged between the launching seat and the launching rod, a power device is arranged between the launching seat and the launching rod to adjust the serving speed, a direction changing device is arranged on the front side of the launching seat to adjust the serving direction; an arc-shaped seat on one side of the base is hinged to a launching seat hinge hole on one side of the launching seat, a base sliding groove on the other side of the base is slidingly connected to a launching seat hinge shaft on the other side of the launching seat, the swing device comprises a swing seat, a swing seat sliding block on the lower part of the swing seat is slidingly connected to a base sliding groove in the middle of the base, a cam intermediate shaft is rotationally connected to the swing seat, the cam intermediate shaft is connected to a No. 3 motor output shaft, a No. 3 motor is fixedly connected to a No. 3 motor plate on the side of the swing seat, a swing seat screw hole on the side of the swing seat is connected to a lock bolt, and the cam is slidingly connected to the bottom of the launching seat.
[0006] A vertical plate is arranged on the upper part of the launching seat, a vertical plate sliding groove on the upper part of the vertical plate is slidingly connected to the launching rod, the launching spring is sleeved outside the launching rod, the launching spring is respectively abutted against a baffle on one side of the launching rod and the outside of the vertical plate sliding groove, the power device comprises a gear holder, a gear holder shaft on the rear side of the gear holder is rotationally connected to a vertical plate hole on the side of the vertical plate, the gear holder shaft is connected to a No. 1 motor output shaft, a No. 1 motor is fixedly connected to the launching seat, a group of gear holder sliding grooves are uniformly arranged on the cylindrical surface of the gear holder, a single tooth sliding block on the lower part of a single tooth is slidingly connected to the gear holder sliding groove, a single tooth hole on one side of each single tooth penetrates through an adjusting bolt, each adjusting bolt is threadedly connected to a screw hole on the side of the gear holder, each adjusting bolt is sleeved into an adjusting spring on the outside, and each adjusting spring is abutted against the end face of the gear holder and the inside of the single tooth hole on both sides. Rotating the adjusting bolt to align the outside end face of the single tooth with the outside end face of the gear holder, at this time, the single tooth and the gear rack on the lower part of the launching rod are meshed with each other.
[0007] The ejection seat is provided with a material seat, the upper part of the material seat is provided with a hopper, the lower part of the hopper is provided with a blanking hole, the hopper and the blanking hole are filled with tennis balls, the bottom of the blanking hole is provided with a ball outlet, the left side of the ball outlet is provided with an ejection hole, and the ejection head on the right side of the ejection rod is inserted into the ejection hole in a static state. Beneficial effects
[0008] When the ejection rod moves to the left side, the tennis balls in the blanking hole fall into the lower ball outlet, when the single tooth and the ejection rod lose engagement, the ejection rod is quickly reset to eject the tennis balls in the ball outlet, the number of the single tooth aligned with the outer side end face of the gear seat is adjusted to adjust the distance of the ejection rod moving to the left side, the deformation amount of the ejection spring is changed, when the number of the single tooth aligned with the outer side end face of the gear seat increases, the deformation amount of the ejection spring increases, the speed of the ejection rod during resetting increases, the speed of the ejection rod ejecting the tennis balls increases, and the speed of the tennis balls increases.
[0009] The tennis balls ejected from the ball outlet collide with the rubber surface of the deflection plate, the tennis balls are ejected under the driving of the rubber, the angle between the deflection plate and the axis of the ball outlet is adjusted to change the angle of the tennis balls, the second motor is started, the second motor drives the first gear to rotate through the second gear, the first gear drives the deflection plate to rotate, the rotation of the deflection plate changes the direction of the tennis balls ejected from the ball outlet, and the randomness is great, when the deflection plate rotates to the lower part, the direction of the tennis balls ejected from the ball outlet is towards the upper part, and the training effect is enhanced. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 The figure is a structural schematic view of the tennis ball serving training device.
[0011] Figure 2 The figure is a structural schematic view of the base.
[0012] Figure 3 The figure is a structural schematic view of the ejection seat.
[0013] Figure 4 The figure is a structural schematic view of the ejection rod.
[0014] Figure 5 The figure is a structural schematic view of the power device.
[0015] Figure 6 The figure is a structural schematic view of the gear seat.
[0016] Figure 7 The figure is a structural schematic view of the single tooth.
[0017] Figure 8 Structure diagram of the direction changing device according to the present application.
[0018] Figure 9 Structure diagram of the first gear according to the present application.
[0019] Figure 10 Structure diagram of the swing device according to the present application.
[0020] Figure 11 Structure diagram of the swing seat according to the present application. DETAILED DESCRIPTION
[0021] The present application will be further described in detail below with reference to the accompanying drawings and embodiments:
[0022] Reference Figure 1 A tennis ball serving training device, comprising a base 110, the base 110 is hinged with a shooting seat 120, a swing device 400 is arranged between the base 110 and the shooting seat 120 to swing the shooting seat 120 up and down, the shooting seat 120 is slidingly connected with a shooting rod 140, a shooting spring 150 is arranged between the shooting seat 120 and the shooting rod 140, a power device 200 is arranged between the shooting seat 120 and the shooting rod 140 to adjust the serving speed, and a direction changing device 300 is arranged on the front side of the shooting seat 120 to adjust the serving direction.
[0023] Reference Figure 2 , 3, 10, 11, the base 110 one side of the arc-shaped seat 112 hinge ejector seat 120 one side of the ejector seat hinge hole 131, the base 110 the other side of the base sliding groove 113 sliding connection ejector seat 120 the other side of the ejector seat hinge shaft 132, the swing device 400 includes swing seat 410, the swing seat 410 lower swing seat sliding block 411 sliding connection base 110 middle base sliding groove 113, the swing seat 410 rotationally connected cam 420 middle shaft, the cam 420 middle shaft connecting the third motor 430 output shaft, the third motor 430 fixedly connected to the swing seat 410 side of the third motor plate 413, the swing seat 410 side of the swing seat screw hole 412 connected with the stud, the cam 420 sliding connection ejector seat 120 bottom. Start the third motor 430, the third motor 430 driven cam 420 rotation, cam 420 rotation driven ejector seat 120 around the base bearing seat 111 up and down swing, the ball drop point before and after the change, loosen the swing device 400 screw, push the swing device 400, can make the swing device 400 in the base 110 position changes, the inclination of the ejector seat 120 relative to the base 110 changes, the overall landing point of the ball relative to the trainer changes, change the swing device 400 position change the overall landing point of the ball, ejector seat 120 swing makes the landing point changes each time, greatly increases the randomness of the training, ensures the training effect.
[0024] Reference Figure 3 , 4 , 5, 6, 7, the ejector seat 120 upper portion is provided with a vertical plate 121, the vertical plate 121 upper vertical plate sliding groove 123 sliding connection ejector lever 140, the ejector spring 150 is sleeved on the outer side of the ejector lever 140, the ejector spring 150 both sides are respectively against the baffle 143 and the vertical plate sliding groove 123 outside one side of the ejector lever 140, the power device 200 includes a gear seat 210, the gear seat 210 rear side of the gear seat shaft 213 rotationally connected to the vertical plate 121 side of the vertical plate hole 122, the gear seat shaft 213 connecting the output shaft of the first motor 160, the first motor 160 fixedly connected to the ejector seat 120, the gear seat 210 cylindrical surface is uniformly provided with a group of gear seat sliding groove 212, the gear seat sliding groove 212 sliding connection single tooth 220 lower single tooth sliding block 221, each single tooth 220 one side of the single tooth hole 222 through the adjusting bolt 230, each adjusting bolt 230 threadedly connected to the screw hole 211 side of the gear seat 210, each adjusting bolt 230 outside the sleeve into the adjusting spring 240, each adjusting spring 240 both sides against the gear seat 210 end face and single tooth hole 222 inside, rotate the adjusting bolt 230, let the single tooth 220 outside end face and the gear seat 210 outside end face alignment, at this time the single tooth 220 and the ejector lever 140 lower rack 141 mesh with each other.
[0025] Reference Figure 1, the right side of the ejection seat 120 is provided with a material seat 124, the upper part of the material seat 124 is provided with a hopper 125, the lower part of the hopper 125 is provided with a blanking hole 126, the hopper 125 and the blanking hole 126 are filled with tennis balls, the bottom of the blanking hole 126 is provided with a ball outlet hole 127, the left side of the ball outlet hole 127 is provided with an ejection hole 128, and the ejection head 142 on the right side of the ejection rod 140 is inserted into the ejection hole 128 in static state. Turn the adjusting bolt 230, so that the outer side end surface of the continuous single tooth 220 and the outer side end surface of the gear seat 210 are aligned, start the first motor 160, the first motor 160 drives the gear seat 210 to rotate, the gear seat 210 rotates, the single tooth 220 whose outer side end surface and the outer side end surface of the gear seat 210 are aligned rotates to drive the ejection rod 140 to slide to the left side, the ejection spring 150 is compressed, when the continuous single tooth 220 rotates through the rack 141, the rack 141 loses engagement, the ejection rod 140 quickly resets to the right side under the elastic force of the ejection spring 150, when the single tooth 220 and the ejection rod 140 lose engagement, the ejection rod 140 quickly resets to make the tennis ball in the ball outlet hole 127 fly out, adjust the number of single teeth 220 whose outer side end surface and the outer side end surface of the gear seat 210 are aligned, the distance of the ejection rod 140 moving to the left side can be adjusted, the deformation amount of the ejection spring 150 changes, when the number of single teeth 220 whose outer side end surface and the outer side end surface of the gear seat 210 are aligned increases, the deformation amount of the ejection spring 150 increases, the speed of the ejection rod 140 resetting increases, the speed of the ejection rod 140 ejecting the tennis ball increases, the speed of the tennis ball increases, when the number of single teeth 220 whose outer side end surface and the outer side end surface of the gear seat 210 are aligned decreases, the speed of the tennis ball decreases.
[0026] Reference Figure 8 , 9The deflection device 300 comprises a first gear 310 rotatably connected outside the ball outlet hole 127, a first gear bearing seat 311 on the end face of the first gear 310 hingedly connected with a deflection plate 320, the surface of the deflection plate 320 being pasted with rubber, the deflection plate 320 being fixedly connected with a worm wheel 330 through a hole in the middle shaft, the worm wheel 330 and a worm 340 being in mesh with each other, the worm 340 being rotatably connected with a side bearing seat 312 on the side of the first gear bearing seat 311, the first gear 310 and a second gear 360 being in mesh with each other, the middle shaft of the second gear 360 being rotatably connected with a side hole 129 on the upper part of the ball outlet hole 127, the middle shaft outside the second gear 360 being connected with an output shaft of a second motor 350, and the second motor 350 being fixedly connected with a second motor plate 130 outside the side hole 129. Rotating the worm 340 drives the worm wheel 330 and the deflection plate 320 to rotate. When the deflection plate 320 rotates, the inclination angle of the deflection plate 320 and the first gear 310 changes. The tennis ball ejected from the ball outlet hole 127 collides with the rubber on the surface of the deflection plate 320, and the tennis ball rotates under the action of the rubber and is ejected. Adjusting the angle of the deflection plate 320 and the ball outlet hole 127 can change the angle of the tennis ball ejected from the ball outlet hole 127. Starting the second motor 350 drives the first gear 310 to rotate through the second gear 360. The first gear 310 drives the deflection plate 320 to rotate. The rotation of the deflection plate 320 changes the direction of the tennis ball ejected from the ball outlet hole 127, which has great randomness. When the deflection plate 320 rotates to the lower part, the direction of the tennis ball ejected from the ball outlet hole 127 changes to the upper part, which enhances the training effect.
[0027] When the device is used, the tennis ball is turned into the hopper 125 and the feeding hole 126. The adjusting bolt 230 is rotated, the first motor 160 and the second motor 350 are started, and the third motor 430 starts the training. The first motor 160 drives the ejection rod 140 to move left and right in a cycle through the power device 200. The ejection rod 140 continuously ejects the tennis ball falling into the ball outlet hole 127. The ejected tennis ball changes the direction of ejection under the action of the deflection plate 320. The rubber on the deflection plate 320 drives the tennis ball to rotate. The second motor 350 drives the deflection plate 320 to rotate. The direction of the tennis ball ejected from the ball outlet hole 127 changes when the deflection plate 320 rotates, which greatly increases the randomness of the landing point of the tennis ball and enhances the training effect. When the third motor 430 rotates, the ejection seat 120 swings up and down continuously, and the landing point of the tennis ball changes. The above makes the landing point of the tennis ball change in the front and back and left and right directions of the trainer at the same time. The rubber on the deflection plate 320 drives the tennis ball to rotate, and the landing point of the tennis ball has great randomness, which enhances the training effect.
[0028] Loosen the screw of swing device 400, push swing device 400, change the position of swing device 400 to change the position of the overall landing point of the tennis ball, rotate the worm 340, change the inclination angle of the axis of the deflection plate 320 and the first gear 310, and can change the angle of the tennis ball, rotate the adjusting bolt 230, adjust the number of single teeth 220 aligned with the outer side surface of the gear seat 210, and can adjust the distance of the left side movement of the ejection rod 140, when the number of single teeth 220 aligned with the outer side surface of the gear seat 210 increases, the deformation of the ejection spring 150 increases, the speed of the ejection rod 140 when returning to the original position increases, the speed of the ejection rod 140 ejecting the tennis ball increases, and the speed of the tennis ball increases, when the number of single teeth 220 aligned with the outer side surface of the gear seat 210 decreases, the speed of the tennis ball decreases.
Claims
1. A tennis serve training device, characterized in that : The utility model provides a ball shooting device, including base (110), the base (110) hinged ejection seat (120), be equipped with swing device (400) between the base (110) and ejection seat (120), ejection seat (120) and ejection rod (140) are connected slidingly, be equipped with ejection spring (150) between ejection seat (120) and ejection rod (140), be equipped with power device (200) between ejection seat (120) and ejection rod (140), ejection seat (120) and be equipped with the direction changing device (300) of adjusting the direction of shooting in the front side, the arc -shaped seat (112) of base (110) one side hinged ejection seat (120) one side ejection seat hinge hole (131), the base sliding slot (113) of base (110) other side sliding connection ejection seat (120) other side ejection seat hinge shaft (132), swing device (400) includes swing seat (410), swing seat (410) lower swing seat sliding block (411) sliding connection base (110) middle base sliding slot (113), swing seat (410) rotationally connected cam (420) middle axle, cam (420) middle axle connects the output shaft of third motor (430), third motor (430) fixedly connected swing seat (410) side third motor plate (413), swing seat (410) side swing seat screw hole (412) connection lock bolt, cam (420) sliding connection ejection seat (120) bottom.
2. A tennis serve training device according to claim 1, wherein Ejection seat (120) upper portion is equipped with vertical plate (121), vertical plate (121) upper vertical plate sliding slot (123) sliding connection ejection rod (140), ejection spring (150) is sleeved on the outside of ejection rod (140), and ejection spring (150) both sides respectively resist baffle (143) and vertical plate sliding slot (123).
3. A tennis serve training device according to claim 2, wherein Power device (200) includes gear holder (210), gear holder shaft (213) rotationally connected vertical plate hole (122) of vertical plate (121) side of gear holder (210) rear side, gear holder shaft (213) connects the output shaft of first motor (160), first motor (160) fixedly connected ejection seat (120), gear holder (210) cylindrical surface is uniformly provided with a group of gear holder sliding slot (212), gear holder sliding slot (212) sliding connection single tooth sliding block (221) of single tooth (220) lower portion, every single tooth hole (222) of single tooth (220) one side passes through adjusting bolt (230), every adjusting bolt (230) is screwed into screw hole (211) of gear holder (210) side, every adjusting bolt (230) is sleeved into adjusting spring (240) outside, every adjusting spring (240) both sides resist gear holder (210) end face and single tooth hole (222) inside, single tooth (220) and rack (141) of ejection rod (140) lower portion are intermeshed.
4. A tennis serve training device as claimed in claim 1, wherein The ejection seat (120) right side is equipped with the material seat (124), the material seat (124) upper portion is equipped with the hopper (125), the hopper (125) lower portion is equipped with the blanking hole (126), the hopper (125) and blanking hole (126) are full of tennis, the blanking hole (126) bottom is equipped with the ball outlet (127), the ball outlet (127) left side is equipped with the ejection hole (128), the ejection rod (140) right side ejection head (142) inserts the ejection hole (128).
5. The tennis serve training device of claim 1, wherein The direction changing device (300) includes a gear (310), the gear (310) is rotatably connected outside the ball outlet (127), the gear (310) end surface gear bearing seat (311) articulates the direction changing plate (320), the direction changing plate (320) surface is pasted with rubber, the direction changing plate (320) hinge hole fixedly connected with the worm wheel (330) middle shaft, the worm wheel (330) and the worm (340) are engaged with each other.
6. A tennis serve training device as claimed in claim 5 wherein The worm (340) rotatably connects the side bearing seat (312) of the side of the gear bearing seat (311), the gear (310) and the gear (360) are engaged with each other, the gear (360) middle shaft rotatably connects the side hole (129) of the upper part of the ball outlet (127), the gear (360) middle shaft outside connects the output shaft of the second motor (350), the second motor (350) fixedly connects the second motor plate (130) outside the side hole (129).