CN101898032B - Tennis trainer - Google Patents

Abstract

The invention aims at providing a tennis trainer which comprises a trainer rack, a launching mechanism and a horizontally-rotating mechanism. The tennis trainer is characterized in that the launching mechanism is fixed in the horizontally-rotating mechanism, and the trainer rack is positioned outside the horizontally-rotating mechanism and is connected with the horizontally-rotating mechanism. The tennis trainer has the characteristics of undemanding air pressure for tennis launching and high launching accuracy, and can realize the self rotation of the tennis and vividly simulation on playing tennis by human. Besides, the tennis trainer has the advantages of simple structure, lighter weight, high safety performance and lower overall cost.

Description

Tennis trainer

Technical field

What the present invention relates to is a kind of mechanical device, specifically is used for the mechanical device in athletic training field.

Background technology

Begin to learn the people of tennis, be difficult to receive ball, also be difficult to find suitable friend of sports fan.Tennis is not just can learn in one day.Learning tennis the best way is the training mate type friend of sports fan who finds, and to white silk, but good training mate type friend of sports fan generally is difficult to run into or arrive approximately, at this moment needs a kind of tennis trainer to practise on the tennis court.Most of tennis technology can be through coming together to learn and improve with tennis trainer.The domestic and international annual increasing degree in this market is all above 30%.

Now the U.S. weekly the people that makes a call to more than four hours of tennis 2,000 ten thousand people are arranged, in state-owned 2,000,000 people.These people are the sports fans, are again the elite of enterprise, their heavy traffic, and the time is valuable, pays attention to taking exercises.They are not free at ordinary times, run into the situation that can not find the place, can not find suitable partner when wanting to play ball again through regular meeting.Tennis trainer is these people's services,

The people that the elderly and health are more weak should avoid doing violent or frequent left-right and front-back and move too fast motion.Present stage every year on average China will increase by 5,960,000 elderly population, one of optimal sports are exactly tennis after these people's retirements, its market space is big can't be estimated.Tennis trainer can constantly be given you release exactly, feed ball as super master-hand.The beginner has strengthened beginner's the confidence and the enjoyment of practising a ball game greatly not with picking up ball continually.Tennis new hand's market is very huge, and novel tennis trainer at home and abroad market sells well very much.

Summary of the invention

The object of the present invention is to provide a kind of thrust of utilizing gases at high pressure to produce to launch the tennis trainer of tennis.

The objective of the invention is to realize like this:

The present invention includes exercise frame, trigger mechanism, horizontal rotary mechanism and wheel; It is characterized in that: described trigger mechanism is fixed in the horizontal rotary mechanism; The exerciser chord position is in the outside of horizontal rotary mechanism, and links to each other with horizontal rotary mechanism, and wheel is installed in the bottom of exercise frame.

Tennis trainer of the present invention can also comprise:

1, described trigger mechanism comprises rotating mechanism, control valve, transmitting tube and striking rod; Rotating mechanism is positioned at the position of the front end ball outlet of trigger mechanism; Rotating mechanism is connected with transmitting tube; Striking rod is comprised in the transmitting tube, and control valve is positioned in the middle of transmitting tube and the striking rod, and links to each other with striking rod with transmitting tube.

2, first motor, first gear, second motor and second gear are installed on the described horizontal rotary mechanism respectively, first motor links to each other with first gear, and second motor links to each other with second gear.

3, wheel is installed in the bottom of described exercise frame.

Advantage of the present invention is: the air pressure during the tennis emission is less demanding, and launch accuracy is high, can realize self rotating of tennis, and simulation true man degree of playing ball is higher.Simple in structure, lighter weight, security performance is good, and whole cost is lower.

Description of drawings

Fig. 1 is tennis trainer overall structure figure of the present invention;

Fig. 2 is a tennis trainer side view of the present invention;

Fig. 3 is a tennis trigger mechanism sectional view of the present invention;

Fig. 4 is Fig. 3 A-A sectional view of the present invention;

Fig. 5 is a rotating mechanism structure chart of the present invention.

The specific embodiment

For example the present invention is done description in more detail below in conjunction with accompanying drawing:

In conjunction with Fig. 1-5, tennis trainer comprises exercise frame 1, trigger mechanism 2, horizontal rotary mechanism 3, gear 4, gear 5 and motor 6, motor 7, wheel 8.Wheel 8 is realized moving of horizontal level in exercise frame 1 bottom by motor-driven.Tennis is accelerated and launches for 2 li at trigger mechanism.The adjustment of transmitting site mainly realizes through motor driven gear.

Trigger mechanism 2 is placed in 3 li of horizontal rotary mechanisms, realizes that through motor 26 driven gears 25 it rotates around the axis, thereby realizes the adjustment of Vertical Launch angle.Thereby one 4 transmissions of motor one 7 driven gears realize horizontal rotary mechanism 3 and around the frame rotation, have realized the adjustment of the horizontal emission angle of tennis.

Trigger mechanism 2 mainly is made up of rotating mechanism 9, control valve 12, transmitting tube 13 and striking rod 14.Tennis 10 gets into 13 li of transmitting tubes through ball hole, and tennis 10 is very big with transmitting tube 13 wall contact position coefficient of frictions 13 li of transmitting tubes, and it is motionless to add that top tennis makes it remain on transmitting site to its pressure, waits for impacting of striking rod 14.Quicken for striking rod 14 through gases at high pressure, impact tennis 10 through striking rod 14 and come to quicken to tennis 10.The function of control valve 12 mainly is the break-make of control gases at high pressure and the discharging of air chamber residual gas.Rotating mechanism 9 mainly is for tennis provides rotatablely moving of self, and rotating mechanism 9 is made up of rotation wall 26, friction plate 27 and gear 28, drives through motor 3 17 rotating mechanism 9 can be rotated around emission port.Friction plate 27 mainly is to frictional force of tennis one side, makes the tennis emission time have certain self rotating speed.Regulate self direction of rotation of tennis through the position of regulating friction plate 27.The present invention can be stronger the true tennis of simulation.

Earlier control valve being opened when exerciser carries out work makes high pressure gas port 15,21 link to each other with high pressure tank; The high pressure gas port charges into gases at high pressure; Control gas port 16 links to each other with high pressure gas holder through magnetic valve; Magnetic valve is opened gases at high pressure and get into to be advanced air chamber 20 to promote striking rods 14 to travel forward when tennis is launched, and striking rod 14 is during through high pressure gas ports 15, and high pressure pore 15 gases at high pressure that are opened get into and advance air chamber 20 total heads to promote striking rod 14 to travel forward fast; Striking rod 14 impacts tennis 10; Make tennis 10 have the certain speed emission, the forward direction console 18 of striking rod 14 this moment on the control valve 12 of the bump front that moves under the promotion that advances air chamber 20 gases at high pressure drives control valve 12 and travels forward together; Control valve 12 is proal to be sealed up high pressure gas port 15 simultaneously; Because the inertia of striking rod 14 makes striking rod 14 drive control valves 12 with the residual gas pressure that advances air chamber 20 and moves forward, identical with high pressure gas port 21 on transmitting tube 13 walls 13 until the gas port on the control valve 12 22, gases at high pressure are through in the high pressure gas port 21 entering control chambers; Be decelerated to for striking rod 14 and stop, control valve 12 is all opened high pressure gas port 21 owing to effect of inertia moves forward.This moment, gas port 25 was identical with gas port 24, and the propelling air cavity 20 of striking rod 14 back communicates with the control air cavity of striking rod 14 back, advanced 20 li remaining gases at high pressure of air cavity to release outside the chamber through gas port 24,25, advanced air cavity 20 to reply normal pressure.The gases at high pressure that charge in the striking rod 14 front control chambers 11 this moment promote striking rod 14 and move backward; After striking rod 14 moves to the certain position bump, driving control valve 12 to console 19 moves backward; Control valve 12 motion certain distance is backward at first sealed up high pressure gas port 21, and striking rod 14 is also sealed up high pressure gas port 15 simultaneously, along with the continuation campaign of striking rod 14 and control valve 12; Control valve 12 is opened high pressure gas port 15, and gases at high pressure withstand striking rod 14.This moment, striking rod 14 was returned to transmitting site, and the pore 22 on the control valve 12 communicates with pore 23 on transmitting tube 13 walls, and the gases at high pressure that the control air chamber is 11 li release, the answer normal pressure.Continue emission next time.

Exerciser work the time is opened solenoid electric valve and is waited until after striking rod 14 is opened high pressure gas port 15 it is shut, and is opening during next time emission by the time.The transmission interval that equals tennis 10 continuous switch time of magnetic valve. High pressure pore 15,21 links to each other with high pressure tank all the time, up to the exerciser end-of-job.

Striking rod 14 makes the hollow front and net 29 is made at the tennis place of impacting, and has alleviated the weight of striking rod 14 like this, can in few time of trying one's best, just reach higher emission rate.

Can control motor 3 17 before each batting.Rotate through motor 3 17 driven gears 3 28, gear 3 28 is fixed together with rotation wall 26, can control rotation wall 26 like this and rotate around transmitting tube, adjusts the angle of friction plate 27 in this way.Make the tennis emission time have different self direction of rotation.

Realize the adjustment of emission angle through controlling motor 1 and motor 26 during each the emission, control transmitting site through the motor that control links to each other with wheel.

Claims (3)

1. a tennis trainer comprises exercise frame, trigger mechanism, horizontal rotary mechanism, and it is characterized in that: described trigger mechanism is fixed in the horizontal rotary mechanism; The exerciser chord position is in the outside of horizontal rotary mechanism, and links to each other with horizontal rotary mechanism, and described trigger mechanism comprises rotating mechanism, control valve, transmitting tube, striking rod, high pressure tank; Rotating mechanism is positioned at the position of the front end ball outlet of trigger mechanism, and rotating mechanism connects transmitting tube, and striking rod is installed in the transmitting tube; Control valve is positioned in the middle of transmitting tube and the striking rod; And link to each other with striking rod with transmitting tube, gases at high pressure quicken to striking rod, and striking rod impacts tennis and quickens to tennis; The break-make of control valve control gases at high pressure and the discharging of air chamber residual gas, rotating mechanism is that tennis provides rotatablely moving of self.

2. tennis trainer according to claim 1; It is characterized in that: first motor, first gear, second motor and second gear are installed respectively on the described horizontal rotary mechanism; First motor links to each other with first gear; Second motor links to each other with second gear; Thereby second driven by motor, second gear is realized the adjustment of its realization Vertical Launch angle that rotates around the axis, and rotates, realizes the adjustment of the horizontal emission angle of tennis around the exercise frame thereby first gear drive of first driven by motor realizes horizontal rotary mechanism.

3. tennis trainer according to claim 1 and 2 is characterized in that: wheel is installed in the bottom of described exercise frame.

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