CN212038908U

CN212038908U - Tennis ball hitting auxiliary device

Info

Publication number: CN212038908U
Application number: CN202020425622.XU
Authority: CN
Inventors: 欧佩; 吕海龙
Original assignee: Huaihua University
Current assignee: Huaihua University
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-12-01
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a tennis ball hitting auxiliary device, which belongs to the technical field of sports equipment and comprises a first support frame, wherein the top of the first support frame is fixedly connected with a second support frame, the inside of the second support frame is of a cavity structure, one end of the second support frame, which is close to the first support frame, is detachably connected with a spring, the other end of the spring is detachably connected with a pull rope, and the other end of the pull rope extends to the outside of the second support frame and is fixedly connected with a tennis ball; the utility model discloses to tennis batting action requirement, the training person is when carrying out the batting training, because the tennis is hung in the air by the stay cord, the available tennis of training person is patted and is beaten the tennis, practices repeatedly and thinks, and the tennis of being beaten out can slowly return to the original position under the effect of spring, and can not scatter in the court, has saved the time of batting training and picking up the ball, helps improving training efficiency.

Description

Tennis ball hitting auxiliary device

Technical Field

The utility model belongs to the technical field of sports equipment, concretely relates to tennis batting auxiliary device.

Background

In the process of tennis teaching and training, how to accurately hit balls plays a key role in improving tennis skills, particularly for beginners, basic actions such as positions of a racket and tennis balls at the moment of hitting the balls, hitting angles and the like need to be repeatedly learned and trained, and generally, when basic training such as hitting the balls is carried out, the basic training needs to be carried out in a tennis field, coaches or other personnel throw the balls to trainees, and the trainees hit the balls out.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tennis batting auxiliary device has solved above-mentioned problem.

The utility model discloses the technical scheme who adopts is, a tennis batting auxiliary device, including first support frame, first support frame top fixedly connected with second support frame, the inside cavity structure that is of second support frame, the one end that is close to first support frame in the second support frame can be dismantled and be connected with the spring, the spring other end can be dismantled and be connected with the stay cord, the stay cord other end extends to second support frame outside and fixedly connected with tennis.

Furthermore, a limiting pipe is fixedly connected to the inner wall of the second support frame, and one end, far away from the spring, of the pull rope penetrates through the limiting pipe and extends to the outside of the second support frame.

Furthermore, the outer diameter of the spring is larger than the inner diameter of the limiting pipe, and the distance between the limiting pipe and one end, close to the first support frame, of the second support frame is smaller than the maximum elastic stretching length of the spring.

Furthermore, a through hole is formed in one end, away from the first support frame, of the second support frame, a pulley support is fixedly connected into the through hole, a pulley is mounted on the pulley support, and two sides of the pulley are respectively and fixedly connected with limiting parts at the top of the through hole.

Furthermore, the two ends of the spring are respectively provided with a hook, one end of the second support frame, which is close to the first support frame, is fixedly connected with a first hanging ring, one end of the pull rope is provided with a second hanging ring, and the hooks at the two ends of the spring are respectively hooked with the first hanging ring and the second hanging ring.

Furthermore, an installation channel is formed in the pipe wall of the second support frame, corresponding to the spring, and a sealing plug is arranged in the installation channel.

Further, the bottom of the first support frame is fixedly connected with a base, and the bottom of the base is provided with a roller.

Furthermore, the first support frame comprises a telescopic support and a fixed support, the fixed support is fixedly connected to the surface of the base, the fixed support is a hollow tube, and the bottom of the telescopic support is sleeved in the fixed support and locked through a bolt.

The utility model has the advantages that:

the utility model is characterized in that the tennis ball hitting action training is suspended by the second support frame, when the trainer carries out the ball hitting training, as the tennis ball is suspended in the air by the pull rope, the trainer has sufficient time to understand and think about the position, the angle and other detailed points between the racket and the tennis ball when hitting the ball, the tennis ball can be hit by the racket, and the tennis ball can be repeatedly exercised and thought; because the spring is arranged in the second support frame and is connected with the pull rope, the shot tennis firstly moves outwards, the spring is stretched, and under the action of the spring, the tennis is slowly decelerated and returns to the original position, so that the damage to the tennis and the accidental injury to a trainer caused by the fact that the tennis is pulled back instantly after being shot are prevented; the utility model discloses simple structure can assist the training person to carry out the batting training, and need not pick up the ball, save time.

Drawings

Fig. 1 is a schematic structural view of a tennis ball hitting assisting device provided by the present invention;

FIG. 2 is a schematic view of the internal structure of the second support frame of FIG. 1;

FIG. 3 is a schematic view of the pulley and through hole of FIG. 2;

fig. 4 is a specific structural schematic diagram of the first support frame in fig. 1.

Description of reference numerals:

1. the tennis ball mounting device comprises a base, 2, a first support frame, 21, a fixing support frame, 22, a telescopic support frame, 23, a bolt, 3, a second support frame, 31, a spring, 32, a through hole, 33, a limiting pipe, 34, a pulley, 341, a limiting part, 35, a pulley support frame, 36, a mounting channel, 37, a sealing plug, 4, a pull rope, 5 and a tennis ball.

Detailed Description

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

A tennis ball hitting auxiliary device is shown in figures 1 and 2 and comprises a first support frame 2, wherein the top of the first support frame 2 is fixedly connected with a second support frame 3, the inside of the second support frame 3 is of a cavity structure, a spring 31 is arranged in the second support frame 3, the other end of the spring 31 is connected with a pull rope 4, two ends of the spring 31 are respectively provided with a hook, one end, close to the first support frame 2, in the second support frame 3 is fixedly connected with a first hanging ring, one end of the pull rope is provided with a second hanging ring, the hooks at two ends of the spring 31 are respectively hooked with the first hanging ring and the second hanging ring, the spring 31 and the pull rope 4 are convenient to replace, and the other end of the pull rope 4 extends to the outside of the second support frame 3 and is fixedly connected with; when a trainer practices the hitting action of tennis, the tennis can be hit by the racket, and the key points of the position, the angle and the like of the tennis and the racket during hitting can be analyzed and understood, after the tennis is hit out, the tennis is moved outwards firstly, the spring 31 is stretched and is gradually slowed down under the action of the resilience force of the spring 31 and finally returns to the original position, the spring 5 can ensure that the tennis is slowly returned, and the phenomenon that the tennis is quickly rebounded after being hit out, the tennis is damaged or the trainer is accidentally injured is avoided.

In order to prevent the pull rope 4 from infinitely stretching the spring 31 and further damaging the spring 31, the inner wall of the second support frame 3 is fixedly connected with a limiting tube 33, one end, far away from the spring 31, of the pull rope 4 penetrates through the limiting tube 33 and extends to the outside of the second support frame 3, the outer diameter of the spring 31 is larger than the inner diameter of the limiting tube 33, the distance between the limiting tube 33 and one end, close to the first support frame 2, of the second support frame 3 is smaller than the maximum elastic stretching length of the spring 31, and the limiting tube 33 can prevent the spring 31 from continuously stretching to protect the spring 31.

As shown in fig. 2 and 3, a through hole 32 is formed in one end of the second support frame 3, which is far away from the first support frame 2, the pull rope 4 penetrates through the through hole 32 to be connected with the tennis ball 5, and the through hole 32 can prevent the pull rope 4 from swinging back and forth in the second support frame 3, so that a certain limiting effect is achieved; in order to prevent the rope 4 from being worn, a pulley bracket 35 is fixedly connected in the through hole 32, a pulley 34 is mounted on the pulley bracket 35, the pulley 34 is a commonly-used pulley with a groove on the side surface, the mounting mode is also a conventional mode, the rope 4 is placed in the groove of the pulley 34, and in order to prevent the rope 4 from being separated from the pulley 34 at the moment when a tennis ball is hit out, a limiting part 341 is respectively fixedly connected to the top of the through hole 32 on both sides of the pulley 34, and the limiting part 341 can ensure that the rope 4 is stabilized on the pulley 34 and cannot be separated.

As shown in fig. 2, a mounting passage 36 is formed in a wall of the second support frame 3 at a position corresponding to the spring 31, a sealing plug 37 is disposed in the mounting passage 36, the mounting passage 36 is used for facilitating replacement of the spring 31, and when replacement is required, the sealing plug 37 is opened to see the inner spring 31, so that replacement can be performed.

As shown in fig. 1 and 4, the bottom of the first support frame 2 is fixedly connected with the base 1, the bottom of the base 1 is provided with the roller, the roller is in a conventional arrangement and has a locking function, so that the utility model can be conveniently moved to a proper position, and a proper occasion can be conveniently selected for tennis hitting training, not only in a tennis court; in addition, in order to adjust the height conveniently, the first support frame 2 is set to be a telescopic support, the first support frame 2 comprises a telescopic support 22 and a fixed support 21, the fixed support 21 is fixedly connected to the surface of the base 1, the fixed support 21 is a hollow pipe, and the bottom of the telescopic support 22 is sleeved in the fixed support 21 and locked through a bolt 23.

When a trainer carries out tennis hitting training, the utility model is moved to any suitable training occasion, the telescopic support 22 is pulled out by a proper height from the fixed support 21 according to training needs and is fixed by the bolt 23, so that the tennis is at the height required by the training, during the training, the trainer can match the suspended tennis with the racket to carry out knowledge explanation related to the hitting, such as the hitting position of the racket, the hitting angle and the like, according to theoretical knowledge, the trainer repeatedly hits the tennis with the racket to practice, when the racket hits the tennis, the tennis moves outwards, the pull rope 4 further stretches the spring 31, the resilience force of the spring 31 is increased, the speed of the tennis is gradually reduced under the action of the resilience force, and the tennis returns to the original position slowly; prevent the damage of tennis ball and accidental injury of trainers caused by the instant pull-back of the tennis ball after being hit out; the utility model discloses simple structure can assist the training person to carry out the batting training, and need not pick up the ball, save time.

The above disclosure is only for the specific embodiments of the present invention, however, the embodiments of the present invention are not limited thereto, and any changes that can be considered by those skilled in the art should fall into the protection scope of the present invention.

Claims

1. The utility model provides a tennis ball hitting auxiliary device, its characterized in that includes first support frame (2), first support frame (2) top fixedly connected with second support frame (3), the inside cavity structure that is of second support frame (3), the one end that is close to first support frame (2) in second support frame (3) can be dismantled and be connected with spring (31), spring (31) other end can be dismantled and be connected with stay cord (4), stay cord (4) other end extends to second support frame (3) outside and fixedly connected with tennis (5).

2. The tennis ball hitting aid device according to claim 1, wherein a limiting pipe (33) is fixedly connected to an inner wall of the second support frame (3), and one end of the pulling rope (4) far away from the spring (31) penetrates through the limiting pipe (33) and extends to the outside of the second support frame (3).

3. A tennis ball striking aid according to claim 2, wherein said spring (31) has an outer diameter greater than the inner diameter of the restraining tube (33), and the restraining tube (33) is spaced from the end of the second support (3) adjacent the first support (2) by a distance less than the maximum elastic extension of the spring (31).

4. The tennis ball hitting aid device according to claim 1, wherein a through hole (32) is formed in one end of the second support frame (3) away from the first support frame (2), a pulley bracket (35) is fixedly connected in the through hole (32), a pulley (34) is mounted on the pulley bracket (35), and a limiting member (341) is fixedly connected to the top of the through hole (32) on each of two sides of the pulley (34).

5. The tennis ball hitting aid device according to claim 1, wherein hooks are provided at two ends of the spring (31), a first hanging ring is fixedly connected to one end of the second support frame (3) close to the first support frame (2), a second hanging ring is provided at one end of the pulling rope, and the hooks at two ends of the spring (31) are respectively hooked with the first hanging ring and the second hanging ring.

6. The tennis ball hitting aid of claim 5, wherein the wall of the second support (3) is provided with a mounting channel (36) at a position corresponding to the spring (31), and a sealing plug (37) is arranged in the mounting channel (36).

7. The tennis ball hitting aid of claim 1, wherein a base (1) is fixedly connected to the bottom of the first support frame (2), and rollers are mounted on the bottom of the base (1).

8. The tennis ball hitting aid device according to claim 7, wherein the first support frame (2) comprises a telescopic bracket (22) and a fixed bracket (21), the fixed bracket (21) is fixedly connected to the surface of the base (1), the fixed bracket (21) is a hollow tube, and the bottom of the telescopic bracket (22) is sleeved in the fixed bracket (21) and locked by a bolt (23).