CN109999463B

CN109999463B - Tennis auxiliary teaching and practicing system

Info

Publication number: CN109999463B
Application number: CN201910320646.0A
Authority: CN
Inventors: 曹江; 曹海信; 王茹
Original assignee: Xian Shiyou University
Current assignee: Xian Shiyou University
Priority date: 2019-04-20
Filing date: 2019-04-20
Publication date: 2020-09-15
Anticipated expiration: 2039-04-20
Also published as: CN109999463A

Abstract

The invention belongs to the technical field of tennis teaching, in particular to a tennis auxiliary teaching and practicing system, wherein the upper surface of a support frame is fixedly connected with a service wall through bolts, the lower surface of the support frame is provided with universal wheels, two sides of the support frame are respectively provided with a movable upright post, the movable upright posts are connected with the support frame in a sliding way through slide bars, the service wall is internally provided with a ball storage bin and a service device, the service device comprises an impact block, a tennis slideway, a launching tube and a combined power structure, the impact block is positioned in the launching tube, the practicing system can assist a trainer to quickly extend and support a ball net rack when the trainer needs to do a match-up training, the movable upright posts on the two sides are pulled out from the side surfaces of the support frame to achieve enough width, an extending rod is pulled out from the movable upright posts to achieve enough height, and a movable hook on the side surface of the extending rod is popped out under the action of a pressure spring, the net can be hung at this time.

Description

Tennis auxiliary teaching and practicing system

Technical Field

The invention belongs to the field of tennis teaching, and particularly relates to a tennis auxiliary teaching and practicing system.

Background

Tennis beginners want to train tennis technique, inevitably need carry out a large amount of exercises, including training body adjustment repeatedly, batting posture, actual combat confrontation etc. wherein the step adjustment, the action of monotonous exercise such as batting posture needs the machine equipment cooperation trainer to practise alone, and the actual combat is the best way of promotion, in order to can better build the ball rack more fast, better for beginner trainer provides training help, provides a tennis auxiliary teaching exercise system.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a tennis auxiliary teaching and practicing system which has the characteristics that a tennis net rack can be quickly stretched and built when a trainer exercises, the requirement for playing fields is created, automatic serving can be realized, the trainer is helped to adjust the batting posture, and the actual combat experience is enhanced.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a tennis auxiliary teaching exercise system, the upper surface of support frame passes through bolt fixedly connected with service wall, the lower surface of support frame is provided with the universal wheel, the both sides setting of support frame all is provided with movable pole setting, the activity pole setting passes through slide bar and support frame sliding connection, service wall's inside is provided with stores up ball storehouse and service device, and the service device that sends includes striking piece, tennis slide, launching tube and combined power structure, the striking piece is in the inside of launching tube, logical groove has been seted up to one side of launching tube, the inside of activity pole setting is provided with the pull-up rod, a plurality of cavity is seted up to one side that the pull-up rod deviates from service wall, be provided with activity couple and compression spring in the cavity.

Further, the combined power structure includes first pivot, first crank, second pivot, second crank, power pivot and motor, logical groove and striking piece fixed connection are passed to first pivot one end, the other end and the first crank swivelling joint of first pivot, the both ends and the equal swivelling joint of first crank and second crank of second pivot, and first articulate length is greater than the articulate length of second, power pivot and the equal fixed connection of second crank and motor.

Furthermore, one end of the sliding rod is connected with the supporting frame in a sliding mode, and the other end of the sliding rod is fixedly connected with the movable vertical rod.

Furthermore, the upper end and the lower end of the pull rod are provided with through holes, and the movable vertical rod is provided with a bolt hole and a bolt and a pull ring at the position corresponding to the through hole at the upper end of the pull rod.

Furthermore, the side of the support frame is provided with an electric connector beside the movable vertical rod, and a cover plate is arranged above the service wall.

Further, the activity couple is through pivot and lift rod swivelling joint, compression spring one end and activity couple fixed connection, compression spring's the other end and the lift rod fixed connection, the activity couple passes through pressure spring elastic connection with the lift rod.

Furthermore, a cabinet door is arranged at the lower part of the back of the service wall, and a storage cabinet is arranged in the service wall corresponding to the cabinet door.

Compared with the prior art, the invention has the beneficial effects that:

1. this exercise system can assist the training person and need carry out when training, extends fast and props up the ball rack, pulls out from the side of support frame through the activity pole setting with both sides, reaches sufficient width, stretches out through pulling out the pull-up rod from the activity pole setting in, reaches sufficient height, and the activity couple of pulling out the pull-up rod side that stretches out pops out under the pressure spring effect, can hang the net this moment.

2. The practice system can automatically serve balls through the matching of the impact block, the motor and the combined power structure, assists a trainer to carry out man-machine sparring and adjust the batting posture, and avoids frequent ball picking and milling training interests without wasting time on picking up the balls.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a side sectional view of the present invention;

FIG. 4 is an enlarged view of the structure at A in the present invention;

FIG. 5 is a perspective view of the ball serving device of the present invention;

FIG. 6 is a rear view of the present invention;

in the figure: 1. a support frame; 2. a slide bar; 3. a service wall; 4. an impact block; 41. a first rotating shaft; 42. a first crank; 43. a second rotating shaft; 44. a second crank; 45. a power shaft; 5. a motor; 6. a tennis ball slideway; 61. a launch canister; 62. a through groove; 7. a ball storage bin; 8. pulling a lifting rod; 9. perforating; 91. a bolt; 92. a pull ring; 10. a movable upright stanchion; 11. a universal wheel; 12. a cavity; 13. a movable hook; 14. a pressure spring; 15. a cabinet door.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-6, the present invention provides the following technical solutions: a tennis auxiliary teaching and practicing system comprises a support frame 1, the upper surface of the support frame 1 is fixedly connected with a service wall 3 through bolts, the lower surface of the support frame 1 is provided with universal wheels 11, both sides of the support frame 1 are provided with movable upright posts 10, the movable upright posts 10 are connected with the support frame 1 through slide bars 2 in a sliding manner, a ball storage bin 7 and a service device are arranged inside the service wall 3, the service device comprises an impact block 4, a tennis slideway 6, a launching tube 61 and a combined power structure, the impact block 4 is positioned inside the launching tube 61, the impact block 4 can slide inside the launching tube 61, one side of the launching tube 61 is provided with a through groove 62, a first rotating shaft 41 is connected with the impact block 4 and the first rotating shaft 41 through the through groove 62, the inside of the movable upright posts 10 is provided with a pull-up rod 8, one side of the pull-up rod 8, which is far away from the service wall 3, is provided with a plurality of cavities 12, in this embodiment, through the characteristics that serve device and training system extend fast and build the net rack of playing the ball, upgrade the training and experience, help the training person to adjust the batting posture and strengthen the actual combat experience, improve the tennis level step by step.

Specifically, the combined power structure includes a first rotating shaft 41, a first crank 42, a second rotating shaft 43, a second crank 44, a power rotating shaft 45 and a motor 5, one end of the first rotating shaft 41 passes through the through slot 62 to be fixedly connected with the striking block 4, the other end of the first rotating shaft 41 is rotatably connected with the first crank 42, two ends of the second rotating shaft 43 are rotatably connected with the first crank 42 and the second crank 44, the length of the first crank 42 is greater than that of the second crank 44, the power rotating shaft 45 is fixedly connected with the second crank 44 and the motor 5, in this embodiment, the power rotating shaft 45 is fixedly connected with an output end of the motor 5 in a clamping manner, when the power rotating shaft rotates, the position is not moved, the second crank 44 is driven to rotate around the power rotating shaft 45, and the second crank 44 drives the first crank 42 to move when rotating, as shown in fig. 5, when the first crank 42 and the second crank 44 are located at an overlapping position, the striking block 4 moves to the rightmost end, when the first and

second cranks

42, 44 are in non-overlapping collinear positions, the impact block 4 moves to the far left.

Specifically, 2 one ends of the slide bars are slidably connected with the support frame 1, the other ends of the slide bars 2 are fixedly connected with the movable vertical rods 10, the slide bars 2 can slide in the support frame 1 in the embodiment, and each movable vertical rod 10 is connected with four slide bars 2, so that the movable vertical rods 10 are more stably connected with the support frame 1. .

Specifically, the upper end and the lower end of the lifting rod 8 are both provided with through holes 9, the movable vertical rod 10 is provided with a bolt hole corresponding to the through hole 9 at the upper end of the lifting rod 8 and is provided with a bolt 91 and a pull ring 92, in the embodiment, the bolt 91 penetrates through the bolt hole and the through holes 9 at the upper end and the lower end simultaneously, the lifting rod 8 is fixed in the movable vertical rod 10, when the lifting rod 8 needs to be pulled, the through hole 9 at the lower end is pulled to the through hole 9 at the upper end, and the bolt 91 is inserted for fixing.

Specifically, the side of support frame 1 is located one side of activity pole setting 10 and is provided with the electric connector, and the top of service wall 3 is provided with the apron, and motor 5 passes through the electric connector and is connected with external power supply in this embodiment, and then drives the service device through motor 5. A cover plate above the support frame 1 is opened, and a large number of tennis balls can be placed in the ball storage bin 7.

Concretely, activity couple 13 is through pivot and 8 swivelling joints of lift rod, 14 one end of compression spring and 13 fixed connection of activity couple, 14 other end of compression spring and 8 fixed connection of lift rod, activity couple 13 and lift rod 8 pass through 14 elastic connection of compression spring in this embodiment, like this when lift rod 8 receives in activity pole setting 10, activity couple 13 is compressed into in the cavity 12 of 8 one sides of lift rod, when lift rod 8 pulls out from activity pole setting 10, directly pop out in cavity 12, and is simple and convenient.

Specifically, a cabinet door 15 is arranged at the lower part of the back of the service wall 3, a storage cabinet is arranged in the service wall 3 corresponding to the cabinet door 15, a space is left in the service wall 3 except for the launching device and the ball storage bin 7, a cabinet door 15 is arranged at the lower part of the service wall, and a storage cabinet is arranged corresponding to the cabinet door 15 and can be used for placing training articles such as a net.

The motor 5 of the present embodiment is a known technique which has been disclosed to be widely used in daily life, and the motor 5 in the present system may be a motor of the YGRM series 190-225S-4 manufactured by the constant electro-mechanical manufacturing ltd.

The working principle and the using process of the invention are as follows: in the use process of the training system, firstly, the training system is moved to a training field through the universal wheel 11, then the cover plate above the support frame 1 is opened, the prepared tennis ball is placed in the tennis storage bin 7, the tennis ball placed in the tennis storage bin 7 enters the launching tube 61 through the tennis slideway 6, the power supply is switched on through the electric connector on the side surface of the support frame 1, the motor 5 works, the output end of the motor 5 is fixedly connected with the power rotating shaft 45, the power rotating shaft 45 is fixedly connected with the second crank 44, the motor 5 works to drive the second crank 44 to rotate around the power rotating shaft 45, the second crank 44 is connected with the first crank 42 through the second rotating shaft 43, the length of the first crank 42 is greater than that of the second crank 44, the connecting end of the first crank 42 and the first rotating shaft 41 is forced to slide back and forth along the through groove 62 in the rotation process of the second crank 44, and the impact block 4 is driven to slide back and forth in the launching tube 61, the process that the impact block 4 slides back and forth in the launching tube 61 can shoot tennis balls in the launching tube 61 out, and automatic serving is completed, when two people practice the tennis net together, the movable vertical rods 10 on two sides can be pulled out from the side faces of the support frame 1 to reach a sufficient width, then the pull ring 92 is grabbed, the bolt 91 is pulled out from the through hole 9, the pull rod 8 is pulled out from the movable vertical rods 10 until the through hole 9 at the lower end of the pull rod 8 is located at the position of the through hole 9 at the upper end of the original pull rod 8, the bolt 91 is inserted and fixed, so that the net rack reaches a sufficient height, the movable hook 13 on the side face of the pull rod 8 which is pulled out is not blocked by the movable vertical rods 10 and is popped out under the action of the pressure spring 14, at the moment, the tennis net can be hung on the movable hook 13, and the tennis net is formed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a tennis auxiliary teaching exercise system, includes support frame (1), its characterized in that: the upper surface of the support frame (1) is fixedly connected with a service wall (3) through bolts, the lower surface of the support frame (1) is provided with universal wheels (11), both sides of the support frame (1) are provided with movable vertical rods (10), the movable vertical rods (10) are connected with the support frame (1) in a sliding manner through slide rods (2), a ball storage bin (7) and a service device are arranged inside the service wall (3), the service device comprises an impact block (4), a tennis slideway (6), a launching tube (61) and a combined power structure, the impact block (4) is positioned inside the launching tube (61), one side of the launching tube (61) is provided with a through groove (62), the inside of the movable vertical rods (10) is provided with a pull rod (8), one side of the pull rod (8) departing from the service wall (3) is provided with a plurality of cavities (12), a movable hook (13) and a pressure spring (14) are arranged in the cavity (12).

2. The tennis auxiliary teaching practice system of claim 1, wherein: the combined power structure comprises a first rotating shaft (41), a first crank (42), a second rotating shaft (43), a second crank (44), a power rotating shaft (45) and a motor (5), wherein one end of the first rotating shaft (41) penetrates through a through groove (62) and an impact block (4) to be fixedly connected, the other end of the first rotating shaft (41) is rotatably connected with the first crank (42), the two ends of the second rotating shaft (43) are rotatably connected with the first crank (42) and the second crank (44) respectively, the length of the first crank (42) is greater than that of the second crank (44), and the power rotating shaft (45) is fixedly connected with the second crank (44) and the motor (5) respectively.

3. The tennis auxiliary teaching practice system of claim 1, wherein: one end of the sliding rod (2) is connected with the supporting frame (1) in a sliding mode, and the other end of the sliding rod (2) is fixedly connected with the movable upright rod (10).

4. The tennis auxiliary teaching practice system of claim 1, wherein: the upper end and the lower end of the pull-up rod (8) are both provided with through holes (9), and the movable upright stanchion (10) corresponding to the through holes (9) at the upper end of the pull-up rod (8) is provided with a bolt hole and is provided with a bolt (91) and a pull ring (92).

5. The tennis auxiliary teaching practice system of claim 1, wherein: the side of support frame (1) is located one side of activity pole setting (10) and is provided with the electric connector, the top of service wall (3) is provided with the apron.

6. The tennis auxiliary teaching practice system of claim 1, wherein: activity couple (13) are through pivot and pull rod (8) swivelling joint, pressure spring (14) one end and activity couple (13) fixed connection, the other end and the pull rod (8) fixed connection of pressure spring (14), activity couple (13) and pull rod (8) are through pressure spring (14) elastic connection.

7. The tennis auxiliary teaching practice system of claim 1, wherein: a cabinet door (15) is arranged at the lower part of the back of the pitching wall (3), and a storage cabinet is arranged in the pitching wall (3) corresponding to the cabinet door (15).