CN211215332U

CN211215332U - Portable tennis technique training wall

Info

Publication number: CN211215332U
Application number: CN201922042841.XU
Authority: CN
Inventors: 覃薛宇; 黎子琼; 苏伟英; 苏献伟; 钮德明
Original assignee: Guangxi Institute of Occupational
Current assignee: Guangxi Institute of Occupational
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-08-11
Anticipated expiration: 2029-11-22

Abstract

A movable tennis skill training wall comprises supporting legs, connecting bolts, a support, a net, a force measuring unit, an indicator light, a data recorder and a battery. Functional and operational instructions: the trainer strikes the tennis ball on the nth elastic plate according to the action required by the coach, so as to continuously practice the set striking technique and action. When a tennis ball is hit on the force measuring unit, the corresponding indicating lamp can be lightened to prompt a player about the hitting position in time, so that the player can adjust the hitting route; after the training unit is finished, reading a training result statistical table displayed by the data recorder, knowing the times of striking, the times of striking the target elastic plate and the strength value of the training, and counting and evaluating the training result to facilitate improvement; in training, the ball is hit on the net or is thrown to the side without hitting the elastic wall due to a mistake in the movement, and the ball is not successful. It has the advantages of complete functions, arbitrary migration, simple structure, low investment, etc.

Description

Portable tennis technique training wall

Technical Field

The utility model belongs to the technical field of tennis facility and specifically relates to a portable tennis technique training wall that is used for tennis technique and action training is related to.

Background

Tennis is an elegant and interesting antagonistic sport, the culture and quality are comprehensively embodied by the cultural connotation, and the tennis has the characteristics of being flexible in movement, entertaining, ornamental and strong in fitness, and is a modern emerging sport item developed in practical activities such as sports, fitness, leisure, social contact and the like. The tennis sport is strong in professional and prominent in technical difficulty, but is more and more popular with the public, and is particularly one of popular sports projects for college students. However, the tennis court construction investment is large, the occupied area is large, the requirements of enthusiasts cannot be met, particularly, the development of tennis teaching activities in colleges and universities is difficult to meet, the tennis court becomes a bottleneck restricting the healthy development of tennis sports, the tennis teaching court and equipment for tennis skill and action training can be solved according to local conditions, the requirements of more tennis teaching teams in colleges and universities and few coaches are met, and the key technology for breaking through the bottleneck restricting the development of tennis sports is achieved.

For a long time, objective evaluation on the technical level of tennis mastered by students in college tennis teaching classes has been a difficult problem, most of the evaluation methods adopted in the past are fixed-point hitting ball tests, the evaluation standards of the methods are too much more focused on hitting ball accuracy, and the hitting force is neglected, so that low-quality hitting balls are easier to obtain high scores than high-quality hitting balls, and the true level of testees is difficult to reflect. A test method for evaluating the level of non-professional tennis players (ITN for short) is provided by the International tennis Union, and three elements of the technical level of tennis are better utilized: the technical level of tennis mastered by students in college tennis teaching classes is stably, deeply and accurately comprehensively evaluated, and a tennis technique and action training appliance supporting ITN is very needed for effectively carrying out a test method for evaluating the level of non-professional tennis players in colleges and universities, wherein the test method is provided by the International tennis Association.

The relevant publications report fields and equipment related to tennis techniques and action training, such as: buttonhuang was proposed in the invention patent "mobile tennis training simulator": the training simulator can complete most of tennis hitting technology and action training, can also carry out statistics and evaluation on training results, has the functions of intercepting and collecting mis-hit flying balls, and the training results of the training simulator are only based on hitting accuracy. However, no research report on ITN tennis technical test and training movable tennis technical training wall in other published documents is found so far.

Disclosure of Invention

The utility model aims at providing a tennis technique and action training utensil that multiple functional, migration wantonly, simple structure, investment economize specifically are portable tennis technique training wall.

The utility model discloses a realize like this, a portable tennis technique training wall comprises landing leg, connecting bolt, support, net, force cell, pilot lamp, data recorder, battery, its characterized in that: the supporting legs are connected with the bracket by connecting bolts, so that the supporting legs are convenient to disassemble and carry during movement; a net is arranged at the bracket, so that a dropped tennis ball cannot bounce to a hitting position; the upper part of the bracket is provided with a force measuring unit, each force measuring unit consists of an elastic plate, a frame, a fixed shaft, a nut, a fixed shaft sleeve, a return spring and a linear displacement sensor, four corners of each force measuring unit are respectively provided with a set of fixing systems which can freely stretch and retract, the fixed shaft sleeve is connected with the frame, and the fixed shaft adopts the nut to concentrically lock the elastic plate and the return spring on the fixed shaft sleeve so as to ensure that the elastic plate does not deflect after being stressed and the linear displacement sensor is stressed axially; the linear displacement sensor is arranged on the frame, a probe of the linear displacement sensor touches the center of the elastic plate, the impact force of a tennis ball hitting the elastic plate can compress the return spring, so that the fixed shaft axially displaces in the fixed shaft sleeve, the axial displacement of the elastic plate is measured by the linear displacement sensor, the displacement data is transmitted to the data recorder arranged on the bracket through a wire, and after operation processing, the data of the force measuring unit number and the force value are stored, and after the training unit is finished, the training result is ready to be read; 6 indicator lights are arranged at the bracket and correspond to the 6 force measuring units, when tennis balls hit the elastic plates of the force measuring units, the corresponding indicator lights can flash, and the ball hitting position is prompted to a practicer in time; the battery is arranged on the bracket to supply power for the indicator light and the data recorder.

The linear displacement sensor adopts a KTR built-in spring automatic reset linear displacement sensor.

Functional and operational instructions: preparation before training, the trainer stands in the proper position for hitting the ball and is provided with a basket for holding a plurality of balls. During training, 10 balls are trained in each group of motions, and a trainer strikes a tennis ball on the nth elastic plate according to motions required by a coach, so that the set striking technology and motions are continuously practiced; when a tennis ball is hit on the force measuring unit, the corresponding indicating lamp can be lightened to prompt a player about the hitting position in time, so that the player can adjust the hitting route; after the training unit is finished, reading a training result statistical table displayed by the data recorder, knowing the times of striking, the times of striking the target elastic plate and the strength value of the training, and counting and evaluating the training result to facilitate improvement; in training, the ball is hit on the net or is thrown to the side without hitting the elastic wall due to a mistake in the movement, and the ball is not successful.

The invention has the advantages that:

1. the functions are complete: can complete the training of most tennis hitting techniques and actions, and can also carry out statistics and evaluation on the training results.

2. The structure is simple: the tennis training device is simple in structure and low in investment, is particularly suitable for teaching classes in colleges and universities and tennis teaching institutions, and is also popular with personal enthusiasts.

3. Any migration: no special requirements on the field are required: the training can be carried out only by a flat hard land, a grassland, a land and a beach, and the training can be carried out at will and temporarily set up; can also be placed indoors in a large space, and meets the requirement of personal fans on ball practice at home.

Drawings

Fig. 1 is a schematic front view and a schematic side view of a movable tennis skill training wall.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

As shown in fig. 1 and 2, a mobile tennis training wall is composed of legs 1, connecting bolts 2, a bracket 3, a net 4, force measuring units 5, indicator lights 6, a data recorder 7 and a battery 8, wherein each force measuring unit 5 is composed of an elastic plate 51, a frame 52, a fixed shaft 53, a nut 54, a fixed shaft sleeve 55, a return spring 56 and a linear displacement sensor 57.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the structural schematic diagram of the present invention shows that a mobile tennis training wall is composed of a supporting leg 1, a connecting bolt 2, a bracket 3, a net 4, a force measuring unit 5, an indicator light 6, a data recorder 7 and a battery 8, and is characterized in that: the supporting legs 1 are connected with the bracket 3 by connecting bolts 2, so that the supporting legs are convenient to disassemble and carry during movement; a net 4 is arranged at the bracket 3, so that a dropped tennis ball cannot bounce to a hitting position; the upper part of the bracket 3 is provided with 6 force measuring units 5, each force measuring unit 5 consists of an elastic plate 51, a frame 52, a fixed shaft 53, a nut 54, a fixed shaft sleeve 55, a return spring 56 and a linear displacement sensor 57, four corners of each force measuring unit 5 are respectively provided with a set of fixing systems which can freely stretch and retract, wherein the fixed shaft sleeve 55 is connected with the frame 52, the fixed shaft 53 adopts the nut 54 to concentrically lock the elastic plate 51 and the return spring 56 on the fixed shaft sleeve 55 so as to ensure that the elastic plate 51 is not deflected after being stressed and the linear displacement sensor 57 is stressed axially; the linear displacement sensor 57 is installed on the frame 52, the probe of the linear displacement sensor touches the center of the elastic plate (51), the impact force of tennis hitting on the elastic plate 51 can compress the return spring 56, so that the fixed shaft 53 generates axial displacement in the fixed shaft sleeve 55, the axial displacement of the elastic plate 51 is measured by the linear displacement sensor 57, the displacement data is transmitted to the data recorder 7 installed on the bracket 3 through a lead, and after the calculation processing, the data of the number of the force measuring unit and the force value are stored, and after the training unit is completed, the training result is ready to be read; 6 indicator lights 6 are arranged at the bracket 3 and correspond to the 6 force measuring units 5, when tennis balls hit the elastic plate 51 of the force measuring units 5, the corresponding indicator lights 6 can be lightened, and a ball hitting position is prompted to a practicer in time; and a battery 8 is arranged on the bracket to supply power for the indicator lamp 6 and the data recorder 7.

Claims

1. The utility model provides a portable tennis technique training wall, comprises landing leg (1), connecting bolt (2), support (3), net (4), dynamometry unit (5), pilot lamp (6), data recorder (7), battery (8), its characterized in that: the supporting legs (1) are connected with the support (3) through connecting bolts (2), and are convenient to detach and carry during movement; a net (4) is arranged at the bracket (3), so that a dropped tennis ball cannot bounce to a hitting position; the upper part of the bracket (3) is provided with 6 force measuring units (5), each force measuring unit (5) consists of an elastic plate (51), a frame (52), a fixed shaft (53), a nut (54), a fixed shaft sleeve (55), a return spring (56) and a linear displacement sensor (57), four corners of each force measuring unit (5) are respectively provided with a set of freely telescopic fixing systems, wherein the fixed shaft sleeve (55) is connected with the frame (52), and the fixed shaft (53) adopts the nut (54) to concentrically lock the elastic plate (51) and the return spring (56) on the fixed shaft sleeve (55) so as to ensure that the elastic plate (51) is not deflected after being stressed and the linear displacement sensor (57) is stressed axially; the linear displacement sensor (57) is arranged on the frame (52), a probe of the linear displacement sensor touches the center of the elastic plate (51), the impact force of a tennis ball hitting the elastic plate (51) can compress the return spring (56), so that the fixed shaft (53) generates axial displacement in the fixed shaft sleeve (55), the axial displacement of the elastic plate (51) is measured by the linear displacement sensor (57), the displacement data is transmitted to the data recorder (7) arranged on the bracket (3) through a lead, the data of the force measuring unit number and the force value are stored after operation processing, and the training result is prepared after the training unit is finished; 6 indicator lights (6) are arranged at the bracket (3) and correspond to the 6 force measuring units (5), when tennis balls hit the elastic plate (51) of the force measuring units (5), the corresponding indicator lights (6) can be lightened and flashed, and a player can be prompted about the hitting position in time; the battery (8) is arranged on the bracket to supply power for the indicator light (6) and the data recorder (7).

2. The mobile tennis skill training wall of claim 1, wherein: wherein the linear displacement sensor (57) adopts a KTR built-in spring automatic reset linear displacement sensor.