CN108939491B

CN108939491B - Table tennis training method

Info

Publication number: CN108939491B
Application number: CN201811206322.6A
Authority: CN
Inventors: 张家林; 何明松
Original assignee: Lixin Yuruo Information Technology Co ltd
Current assignee: LIXIN YURUO INFORMATION TECHNOLOGY Co.,Ltd.
Priority date: 2018-10-17
Filing date: 2018-10-17
Publication date: 2020-08-25
Anticipated expiration: 2038-10-17
Also published as: CN108939491A

Abstract

The invention belongs to the technical field of table tennis training, and particularly relates to a table tennis training method, which comprises the following steps: the method comprises the following steps of arranging a training wall, utilizing the training wall to carry out batting training on a student, splicing the training wall by a plurality of materials with different elasticity and different smoothness, wherein the plurality of different materials are used for changing the rebound speed and the rebound angle of the table tennis; launching the table tennis to the training wall through the table tennis serving device; electric guide rails are arranged at the bottoms of the table tennis serving device and the training wall, so that the training wall and the table tennis serving device move ceaselessly; a pressure sensor is arranged on the table tennis bat and used for detecting the hitting force between the table tennis bat and the table tennis; the broadcasting device is arranged and broadcasts the hitting force between the bat and the table tennis ball in real time through the broadcasting device, so that the student can timely adjust the force; the invention can effectively help the student lay the foundation.

Description

Table tennis training method

Technical Field

The invention belongs to the technical field of table tennis training, and particularly relates to a table tennis training method.

Background

Along with the development of society, people pay more and more attention to the enjoyment of mental life due to the improvement of the living standard of the substance. Therefore, table tennis is becoming more popular as a civilized sport. In China, the table tennis is popular with the masses as a national ball. In the current society, many people improve the table tennis technique through the teaching of specially-assigned people, but the traditional teaching training method can only improve some basic skills of students, can only improve the table tennis technique of the students to a certain extent, and cannot well play the basis of the table tennis learning of the students.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides a table tennis training method. The invention is mainly used for enabling the student to firmly play the basis of table tennis learning.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a table tennis training method, which comprises the following steps:

s1: the training wall is arranged, the training wall is used for performing batting training on a student, the training wall is formed by splicing a plurality of materials with different elasticity and fineness, the plurality of different materials are used for changing the rebound speed and the rebound angle of the table tennis, so that the angle and the speed of each rebound of the table tennis are different, the strain capacity of the student is effectively improved, and the table tennis foundation of the student is effectively firmed;

s2: after the training wall is arranged in the S1, table tennis is launched to the training wall through the table tennis launching device, so that a student does not need to launch the table tennis by himself, the effective training duration of the student is prolonged, meanwhile, the table tennis launching device can launch balls with different angles, balls with different speeds and rotating balls, the tracks of the balls launched by the table tennis launching device are more variable after the balls rebound by the training wall, and the strain capacity of the student is further improved;

s3: after the table tennis is launched in the S2, the electric guide rails are arranged at the bottoms of the table tennis launching device and the training wall, so that the training wall and the table tennis launching device move ceaselessly, a student needs to run ceaselessly to receive the table tennis, the physical strength and the endurance of the student are effectively trained, the physical quality of the student is improved, and the student can play the table tennis better;

s4: s3, arranging a pressure sensor on the table tennis bat, wherein the pressure sensor is used for detecting the hitting force between the table tennis bat and the table tennis;

s5: after the pressure sensor is arranged in the S4, the broadcaster is arranged and broadcasts the hitting force between the bat and the table tennis ball in real time through the broadcaster, so that the trainee can clearly know the change of the force for swinging the bat each time, the trainee can correspondingly adjust the force for swinging the bat in time, the trainee can quickly find the rhythm, and the table tennis ball playing capability of the trainee is improved;

the table tennis serving device adopted in the S2 comprises a mounting plate, a mounting rod, a table tennis feeding hopper, a fixing frame, a bottom plate, a launching module, a power storage module and a controller; the mounting rod is of an L-shaped structure, and one end of the mounting rod is fixed at the right end of the mounting plate; the ball feeding hopper is fixed at the end part of the mounting rod and is positioned above the mounting plate; the fixing frame is obliquely fixed on the mounting plate and is of a door-shaped structure, two rectangular bulges which are symmetrical in front and back are arranged on the inner side of the upper end of the fixing frame, and through holes are formed in the rectangular bulges; the bottom plate is arranged on the lower surface of the fixing frame and used for limiting the table tennis; the transmitting module is positioned in the fixing frame and used for transmitting the table tennis; the transmitting module comprises a first motor, a first belt wheel, a second belt wheel, a conveying belt, a transmitting spring, a transmitting plate and a first magnet; the number of the first motors is two, and the first motors are respectively fixed on the front wall and the rear wall of the fixing frame; the first belt wheel is mounted on an output shaft of the first motor; the fixing frame is provided with two channels, the channels are positioned at the upper end of the fixing frame, and the channels are symmetrically arranged in the front and back direction; the number of the second belt wheels is two, the second belt wheels are rotatably arranged on the lower surfaces of the rectangular bulges of the fixing frame, circular through holes are formed in the second belt wheels, two convex blocks are arranged on two sides of the inner wall of each circular through hole, and the upper and lower positions of the two convex blocks are asymmetric; the conveying belt is installed through a first belt wheel and a second belt wheel and is used for driving the second belt wheel to rotate; the number of the emission springs is two, the emission springs are arranged in a bilateral symmetry mode, the upper ends of the emission springs penetrate through the second belt wheel and the rectangular bulges on the fixing frame, and the emission springs are in contact with the convex blocks; the two ends of the launching plate are connected with the lower ends of the two launching springs, the launching plate is made of rubber and is used for launching the table tennis; the first magnet is embedded in the lower bottom surface of the emission plate; the power storage module is positioned in the fixing frame, the upper end of the power storage module is provided with a second magnet, the second magnet is used for attracting the first magnet, and the power storage module is used for pulling the launching plate; the controller is located the mounting panel, and the controller is used for controlling the work of a motor. When the table tennis ball dispenser works, table tennis balls fall from the ball feeding hopper and slide onto the launching plate along the bottom plate, at the moment, the second magnet is driven to move downwards through the force storage module, so that the first magnet drives the launching plate to move downwards, the launching spring is lengthened, when the attraction force of the second magnet to the first magnet is not enough to enable the first magnet and the second magnet to be attracted, the launching plate is separated instantly, so that the table tennis balls are launched out, in the process, the controller controls the first motor to work, the first motor drives the first belt wheel to rotate, the conveyor belt enables the second belt wheel to rotate along with the first belt wheel, so that the convex blocks in the circular through holes rotate and extrude the launching spring upwards or downwards, the launching spring is further lengthened or compressed, the elasticity of the launching spring is changed, the launching force of the table tennis balls is adjusted, the practicability of the table tennis ball dispenser is improved, and the working time lengths of the first motors on two sides are further different through the controller, the compression or extension of the launching springs on the two sides are different, so that the launching angle of the table tennis in the horizontal direction is adjusted, and the practicability of the serving device is further improved.

The transmitting plate is provided with an adjusting piece, and the adjusting piece is used for adjusting the transmitting angle of the transmitting plate; the adjusting piece comprises an installation block, an adjusting block and an adjusting rod; the number of the mounting blocks is two, the mounting blocks are connected with the lower end of the launching spring, threaded holes are formed in the mounting blocks, springs are arranged in the threaded holes, and through holes are formed in the mounting blocks; the number of the adjusting blocks is two, the adjusting blocks are installed at two ends of the launching plate, threads are arranged outside the adjusting blocks, the adjusting blocks are installed in threaded holes of the installing blocks through the threads, and the adjusting blocks are used for adjusting the angle of the launching plate; one end of the adjusting rod penetrates through a through hole in the mounting block to be connected with the adjusting block, the other end of the adjusting rod is provided with a knob, and the adjusting rod is used for driving the adjusting block to rotate; the fixing frame is further provided with two adjusting holes, the adjusting holes are arranged in a left-right mode and are distributed correspondingly to the adjusting rods, and the adjusting holes are used for facilitating rotation of the knob. The during operation, when the kickboard is located minimum service position, the kickboard is perpendicular with the bottom plate, the knob of rotatory regulating stem tip, thereby make regulating block and kickboard rotate, make the contained angle grow between kickboard and the bottom plate, make the transmission angle in the vertical side of table tennis obtain changing, the effectual practicality that improves the service device, the screw thread setting of regulating block and installation piece makes the regulating block can only make horizontal motion at the pivoted in-process, the existence of spring makes the regulating block extruded, thereby make the pressure grow between the screw thread of regulating block and installation piece, and then make the frictional force grow between regulating block and the installation piece, avoided the regulating block to rotate easily in the installation piece, make the angle after the regulation can not change easily, thereby the effectual practicality that improves the service device.

The force storage module comprises a first sliding block, a second sliding block, a scissor fork mechanism, a second motor, a screw and a supporting plate; the first sliding blocks are arranged in a bilateral symmetry mode, the first sliding blocks are installed at the bottom of the fixing frame in a sliding mode, threaded holes are formed in the first sliding blocks, and the rotating directions of the threaded holes in the two first sliding blocks are opposite; the second motor is arranged at the lower end of the front wall of the fixing frame; one end of the screw is connected with an output shaft of the second motor, the other end of the screw is rotationally connected with the inner wall behind the fixing frame, and the screw is used for driving the first sliding block to move; the supporting plate is positioned below the second magnet, a sliding groove is formed in the lower surface of the supporting plate, and the supporting plate is used for fixing the second magnet; the number of the second sliding blocks is two, the second sliding blocks are arranged in a bilateral symmetry mode, the second sliding blocks are installed in the sliding grooves in a sliding mode, and springs are arranged between the second sliding blocks; the shearing fork mechanism is positioned in the fixed frame, the lower end of the shearing fork mechanism is hinged with the two first sliding blocks, the upper end of the shearing fork mechanism is hinged with the two second sliding blocks, and the shearing fork mechanism is used for driving the second sliding blocks to move; the inner wall of the fixing frame is provided with two elastic air bags, the elastic air bags are arranged in bilateral symmetry, and the elastic air bags are provided with one-way air inlet valves and one-way air outlet valves; the mounting plate is provided with an air storage chamber, the air storage chamber is connected with a one-way air outlet valve of the elastic air bag through a pipeline, and the air storage chamber is used for storing air; the fixed frame is internally provided with two extrusion plates, the two extrusion plates are symmetrically arranged left and right, the extrusion plates are hinged with one hinged point of the scissor fork mechanism, and the extrusion plates are used for extruding the elastic air bag; the emitting plate is internally provided with a plurality of first rectangular cavities which are arranged in a bilateral symmetry mode, the first rectangular cavities on the two sides of the emitting plate are the same in number, the emitting plate is also provided with two air passages, and the air passages respectively communicate the first rectangular cavities on the two sides; the launching plate is further provided with two air guide tubes, the air guide tubes are communicated with the air passage, the air passage is communicated with the air storage chamber through the air guide tubes, and the air guide tubes are used for conveying air to the launching plate. When the table tennis ball ejection device works, the second motor rotates to enable the first two sliding blocks to be close to or away from each other, so that the scissor fork mechanism extends or shortens, the second sliding blocks are further close to or away from each other, the second sliding blocks drive the supporting plate and the second magnet to move up and down, when the second magnet is close to the first magnet, the first magnet and the second magnet are adsorbed together, when the second magnet moves down, the first magnet moves down along with the second magnet, the first magnet drives the ejection plate to move down and extend the ejection spring, finally the second magnet is separated from the first magnet, so that the ejection spring drives the ejection plate to eject a table tennis ball, when the scissor fork mechanism extends or shortens, the extrusion plate is in contact with and separated from the elastic air bag under the action of the scissor fork mechanism, so that the elastic air bag conveys air into the air storage chamber through the one-way air outlet valve and absorbs air from the outside through the one-way air inlet valve, realized gaseous deposit, the reasonable energy that has utilized scissors mechanism motion to produce, the waste of energy has been avoided, input gas in the rectangle cavity to the kickboard through reservoir and air duct, and through the quantity of gas of control input in the rectangle cavity of kickboard both sides, make the elasticity of kickboard both sides different, thereby make the launch angle of table tennis obtain finely tuning, make the launch angle of table tennis adjust more accurately, and make the table tennis rotatory because of the both sides atress is different at the in-process of transmission, the practicality of serving device has been improved.

The extrusion plate comprises an upper pressing plate and a lower pressing plate, and the upper pressing plate and the lower pressing plate are hinged with each other; still be equipped with the connecting rod in the mount, the connecting rod is connected with the pin joint of top board and holding down plate, and the connecting rod is used for making top board and holding down plate around the pin joint rotation. During operation, when the scissors mechanism contracts, the upper pressing plate and the lower pressing plate are close to each other under the extrusion effect of the scissors mechanism due to the existence of the connecting rod, so that the elastic air bag is pressed by the upper pressing plate and the lower pressing plate simultaneously, the compression amount of the elastic air bag is increased, the gas storage speed in the air storage chamber is increased, the utilization efficiency of the ball serving device on the energy of the scissors mechanism is improved, and the cost is saved.

A second rectangular cavity and a slideway are arranged in the second belt wheel, and the second rectangular cavity is communicated with the circular through hole of the second belt wheel through the slideway; a moving block is further arranged in the second rectangular cavity and connected with a lug below the circular through hole, and the moving block is used for driving the lug to move up and down; and a bolt is arranged on the second belt wheel, penetrates through the second belt wheel to contact with the moving block and is used for pressing the moving block. During operation, the existence of movable block makes the lug of circular through-hole below can reciprocate to make things convenient for the change and the regulation of launching spring, avoided the damage of launching spring to cause the service device to scrap, improved service device's practicality.

The bottom plate is rubber material, is equipped with the ash falling hole on the bottom plate, and the ash falling hole is used for avoiding on the bottom plate dust to pile up. The during operation, when the launching pad launches the table tennis, because of the bottom plate is the rubber material, can not bounce when making the table tennis fall on the bottom plate, avoided the table tennis to drop from the bottom plate, rubber material makes the bottom plate can shake simultaneously, thereby make the dust on the bottom plate fall from the ash hole that falls on the bottom plate, it gathers difficult clearance to have avoided the dust on the bottom plate, the dust on having avoided the launching pad causes the hindrance to the steering adjustment of launching pad, the incidental dust of the table tennis of having avoided launching simultaneously, the practicality of serving the device has been improved.

The invention has the following beneficial effects:

1. the table tennis training method provided by the invention has the advantages that the table tennis serving device is used for serving balls, the device can serve balls with different angles and different speeds, so that the strain capacity of a student is effectively improved, meanwhile, the training wall is arranged, and various materials with different elasticity and surface smoothness are spliced to form the training wall, so that the speed and the angle of each rebound of the table tennis are different, the strain capacity of the student is further improved, and the foundation of the student is improved.

2. The invention relates to a table tennis training method, which adopts a table tennis serving device to serve balls for training, and the device can change the launching angle and the launching speed of the table tennis by changing the length of a launching spring, so that a student can train by using balls with different angles and speeds, and the table tennis foundation of the student is effectively firmed.

3. The invention relates to a table tennis training method, which adopts a table tennis serving device for training, wherein the device injects gases with different volumes into rectangular cavities at two sides of a launching plate, so that the two sides of the table tennis are stressed differently when the table tennis is launched, and the table tennis is rotated, so that a student can practice how to take the rotated table tennis, and the student can prick a good foundation.

Drawings

FIG. 1 is a flow chart of the present invention;

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

FIG. 3 is a schematic structural diagram of a transmitting module, a fixing frame and a power accumulating module according to the present invention;

FIG. 4 is a diagram showing the positional relationship between the projection and the second pulley according to the present invention;

FIG. 5 is a schematic view of the structure of the adjustment member of the present invention;

FIG. 6 is a schematic diagram of the distribution of a number one rectangular cavity and air passages in the emitter plate of the present invention;

in the figure: mounting plate 1, mounting rod 2, ball feeding hopper 3, fixing frame 4, bottom plate 5, emission module 6, power storage module 7, air storage chamber 8, extrusion plate 9, channel 41, adjusting hole 42, elastic air bag 43, connecting rod 44, first motor 61, first belt wheel 62, second belt wheel 63, conveyor belt 64, emission spring 65, emission plate 66, first magnet 67, circular through hole 68, projection 69, second rectangular cavity 631, slide 632, moving block 633, bolt 634, adjusting piece 661, mounting block 662, adjusting block 663, adjusting rod 664, first rectangular cavity 665, air passage 666, air duct 667, knob 668, second magnet 71, first slide 72, second slide 73, scissor mechanism 74, second motor 75, screw 76, support plate 77, chute 771, An upper press plate 91 and a lower press plate 92.

Detailed Description

A table tennis teaching training method according to an embodiment of the present invention will be described below with reference to fig. 1 to 6.

As shown in fig. 1 and 3, the table tennis training method of the present invention comprises the following steps:

the table tennis serving device adopted in the S2 comprises a mounting plate 1, a mounting rod 2, a ball feeding hopper 3, a fixing frame 4, a bottom plate 5, a launching module 6, a power storage module 7 and a controller; the mounting rod 2 is of an L-shaped structure, and one end of the mounting rod 2 is fixed at the right end of the mounting plate 1; the ball feeding hopper 3 is fixed at the end part of the mounting rod 2, and the ball feeding hopper 3 is positioned above the mounting plate 1; the fixing frame 4 is obliquely fixed on the mounting plate 1, the fixing frame 4 is of a door-shaped structure, two rectangular bulges which are symmetrical in the front and back direction are arranged on the inner side of the upper end of the fixing frame 4, and through holes are formed in the rectangular bulges; the bottom plate 5 is arranged on the lower surface of the fixing frame 4, and the bottom plate 5 is used for limiting the table tennis; the transmitting module 6 is positioned in the fixing frame 4, and the transmitting module 6 is used for transmitting table tennis; the transmitting module 6 comprises a first motor 61, a first belt wheel 62, a second belt wheel 63, a conveyor belt 64, a transmitting spring 65, a transmitting plate 66 and a first magnet 67; the number of the first motors 61 is two, and the first motors 61 are respectively fixed on the front wall and the rear wall of the fixing frame 4; the number of the first belt wheels 62 is two, and the first belt wheels 62 are arranged on the output shaft of the first motor 61; the fixing frame 4 is provided with two channels 41, the channels 41 are positioned at the upper end of the fixing frame 4, and the channels 41 are symmetrically arranged in front and back; the number of the second belt wheels 63 is two, the second belt wheels 63 are rotatably arranged on the lower surfaces of the rectangular protrusions of the fixed frame 4, circular through holes 68 are formed in the second belt wheels 63, two convex blocks 69 are arranged on two sides of the inner walls of the circular through holes 68, and the upper and lower positions of the two convex blocks 69 are asymmetric; the conveyor belt 64 is installed through a first belt wheel 62 and a second belt wheel 63, and the conveyor belt 64 is used for driving the second belt wheel 63 to rotate; the number of the launching springs 65 is two, the launching springs 65 are arranged in a bilateral symmetry mode, the upper ends of the launching springs 65 penetrate through the second belt wheel 63 to be in contact with the rectangular bulges on the fixed frame 4, and the launching springs 65 are in contact with the bumps 69; two ends of the launching plate 66 are connected with the lower ends of the two launching springs 65, the launching plate 66 is made of rubber, and the launching plate 66 is used for launching ping-pong balls; the first magnet 67 is embedded in the lower bottom surface of the emitting plate 66; the power storage module 7 is positioned in the fixed frame 4, the second magnet 71 is arranged at the upper end of the power storage module 7, the second magnet 71 is used for attracting the first magnet 67, and the power storage module 7 is used for pulling the launching plate 66; the controller is located on the mounting plate 1 and is used for controlling the work of the first motor 61. When the table tennis ball launching device works, table tennis balls fall from the ball feeding hopper 3 and slide onto the launching plate 66 along the bottom plate 5, at the moment, the second magnet 71 is driven to move downwards through the force accumulation module 7, so that the first magnet 67 drives the launching plate 66 to move downwards, the launching spring 65 is lengthened, when the attraction force of the second magnet 71 to the first magnet 67 is not enough to enable the first magnet 67 and the second magnet 71 to be attracted, the launching plate 66 is separated instantly, so that the table tennis balls are launched out, in the process, the controller controls the first motor 61 to work, so that the first motor 61 drives the first belt wheel 62 to rotate, the second belt wheel 63 rotates along with the first belt wheel 62, so that the lug 69 in the circular through hole 68 rotates and extrudes the launching spring 65 upwards or downwards, the launching spring 65 is lengthened or compressed, the elasticity of the launching spring 65 is changed, and the launching force of the table tennis balls is adjusted, the practicality of the service robot is improved, the working time of the first motor 61 on two sides is different through the controller, the compression or extension of the launching springs 65 on two sides is different, the launching angle of the table tennis in the horizontal direction is adjusted, and the practicability of the service robot is further improved.

As shown in fig. 3 and 5, the transmitting plate 66 is provided with an adjusting member 661, and the adjusting member 661 is used for adjusting the transmitting angle of the transmitting plate 66; the adjusting member 661 comprises a mounting block 662, an adjusting block 663 and an adjusting rod 664; the number of the mounting blocks 662 is two, the mounting blocks 662 are connected with the lower end of the launching spring 65, threaded holes are formed in the mounting blocks 662, springs are arranged in the threaded holes, and through holes are formed in the mounting blocks 662; the number of the adjusting blocks 663 is two, the adjusting blocks 663 are installed at two ends of the emission plate 66, threads are arranged outside the adjusting blocks 663, the adjusting blocks 663 are installed in threaded holes of the installation blocks 662 through the threads, and the adjusting blocks 663 are used for adjusting the angle of the emission plate 66; one end of the adjusting rod 664 penetrates through the through hole in the mounting block 662 to be connected with the adjusting block 663, the other end of the adjusting rod 664 is provided with a knob 668, and the adjusting rod 664 is used for driving the adjusting block 663 to rotate; the fixing frame 4 is further provided with two adjusting holes 42, the number of the adjusting holes 42 is two, the adjusting holes 42 are arranged in a left-right pair, the distribution of the adjusting holes 42 corresponds to that of the adjusting rods 664, and the adjusting holes 42 are used for facilitating rotation of the knobs 668. When the device works, when the launching plate 66 is positioned at the lowest serve position, the launching plate 66 is vertical to the bottom plate 5, the knob 668 at the end part of the adjusting rod 664 is rotated, thereby leading the adjusting block 663 and the emission plate 66 to rotate, leading the included angle between the emission plate 66 and the bottom plate 5 to be enlarged, the launching angle of the table tennis in the vertical direction is changed, the practicability of the ball serving device is effectively improved, the adjusting block 663 can only do horizontal movement in the rotating process due to the arrangement of the threads of the adjusting block 663 and the mounting block 662, the adjusting block 663 is extruded due to the existence of the spring, so that the pressure between the threads of the adjusting block 663 and the mounting block 662 is increased, thereby increasing the friction between the adjusting block 663 and the mounting block 662, avoiding the adjusting block 663 from easily rotating in the mounting block 662, the adjusted angle can not be changed easily, and therefore the practicability of the ball serving device is effectively improved.

As shown in fig. 3 and 6, the power accumulating module 7 includes a first slider 72, a second slider 73, a scissors mechanism 74, a second motor 75, a screw 76 and a support plate 77; the number of the first sliding blocks 72 is two, the first sliding blocks 72 are arranged in bilateral symmetry, the first sliding blocks 72 are slidably mounted at the bottom of the fixed frame 4, threaded holes are formed in the first sliding blocks 72, and the threaded holes in the two first sliding blocks 72 are opposite in rotating direction; the second motor 75 is arranged at the lower end of the front wall of the fixed frame 4; one end of the screw 76 is connected with an output shaft of the second motor 75, the other end of the screw 76 is rotatably connected with the rear inner wall of the fixed frame 4, and the screw 76 is used for driving the first sliding block 72 to move; the supporting plate 77 is positioned below the second magnet 71, the sliding groove 771 is formed in the lower surface of the supporting plate 77, and the supporting plate 77 is used for fixing the second magnet 71; the number of the second sliding blocks 73 is two, the second sliding blocks 73 are arranged in a bilateral symmetry mode, the second sliding blocks 73 are installed in the sliding grooves 771 in a sliding mode, and springs are arranged between the second sliding blocks 73; the shearing fork mechanism 74 is positioned in the fixed frame 4, the lower end of the shearing fork mechanism 74 is hinged with the two first sliding blocks 72, the upper end of the shearing fork mechanism 74 is hinged with the two second sliding blocks 73, and the shearing fork mechanism 74 is used for driving the second sliding blocks 73 to move; the inner wall of the fixed frame 4 is provided with two elastic air bags 43, the elastic air bags 43 are symmetrically arranged left and right, and the elastic air bags 43 are provided with one-way air inlet valves and one-way air outlet valves; the mounting plate 1 is provided with an air storage chamber 8, the air storage chamber 8 is connected with a one-way air outlet valve of the elastic air bag 43 through a pipeline, and the air storage chamber 8 is used for storing air; the fixed frame 4 is also internally provided with two extrusion plates 9, the extrusion plates 9 are symmetrically arranged left and right, the extrusion plates 9 are hinged with a hinged point of the scissor mechanism 74, and the extrusion plates 9 are used for extruding the elastic air bags 43; a plurality of first rectangular cavities 665 are formed in the emitting plate 66, the first rectangular cavities 665 are arranged in a bilateral symmetry mode, the number of the first rectangular cavities 665 on the two sides of the emitting plate 66 is the same, air paths 666 are further formed in the emitting plate 66, the number of the air paths 666 is two, and the air paths 666 respectively communicate the first rectangular cavities 665 on the two sides; still be equipped with the air duct 667 on the kicking plate 66, the air duct 667 quantity is two, and the air duct 667 is linked together with gas circuit 666, and the air duct 667 is linked together gas circuit 666 and gas receiver 8, and the air duct 667 is arranged in to kicking plate 66 conveying gas. When the air storage device works, the second motor 75 rotates to enable the two first sliders 72 to approach or separate from each other, so that the scissors mechanism 74 extends or shortens, the second slider 73 approaches or separates from each other, the second slider 73 drives the support plate 77 and the second magnet 71 to move up and down, when the second magnet 71 approaches the first magnet 67, the first magnet 67 and the second magnet 71 are adsorbed together, when the second magnet 71 moves down, the first magnet 67 moves down along with the second magnet 71, the first magnet 67 drives the launching plate 66 to move down and extend the launching spring 65, finally the second magnet 71 is separated from the first magnet 67, so that the launching spring 65 drives the launching plate 66 to launch the ping-pong balls, when the scissors mechanism 74 extends or shortens, the extrusion plate 9 contacts and separates from the elastic air bag 43 under the action of the scissors mechanism 74, so that the elastic air bag 43 conveys air into the air storage chamber 8 through the one-way valve, and absorb gas from the external world through the one-way admission valve, gaseous deposit has been realized, the energy that the motion of scissors fork mechanism 74 produced has rationally been utilized, the waste of energy has been avoided, input gas in rectangular cavity 665 of launching plate 66 through gas receiver 8 and air duct 667, and through the quantity of gas of control input rectangular cavity 665 of launching plate 66 both sides, make the elasticity of launching plate 66 both sides different, thereby make the launch angle of table tennis obtain the fine setting, make the launch angle of table tennis adjust more accurately, and make the table tennis rotatory because of the both sides atress difference at the in-process of transmission, the practicality of serving device has been improved.

As shown in fig. 3, the pressing plate 9 includes an upper pressing plate 91 and a lower pressing plate 92, and the upper pressing plate 91 and the lower pressing plate 92 are hinged to each other; the fixing frame 4 is further provided with a connecting rod 44, the connecting rod 44 is connected with a hinge point of the upper pressing plate 91 and the lower pressing plate 92, and the connecting rod 44 is used for enabling the upper pressing plate 91 and the lower pressing plate 92 to rotate around the hinge point. During operation, when the scissors mechanism 74 contracts, the upper press plate 91 and the lower press plate 92 approach each other under the extrusion action of the scissors mechanism 74 due to the existence of the connecting rod 44, so that the elastic air bag 43 is pressed by the upper press plate 91 and the lower press plate 92 simultaneously, the compression amount of the elastic air bag 43 is increased, the gas storage speed in the gas storage chamber 8 is increased, the utilization efficiency of the ball serving device on the energy of the scissors mechanism 74 is improved, and the cost is saved.

As shown in fig. 4, a second rectangular cavity 631 and a slide 632 are arranged in the second pulley 63, and the slide 632 connects the second rectangular cavity 631 with the circular through hole 68 of the second pulley 63; a moving block 633 is further arranged in the second rectangular cavity 631, the moving block 633 is connected with the bump 69 below the circular through hole 68, and the moving block 633 is used for driving the bump 69 to move up and down; the second belt wheel 63 is provided with a bolt 634, the bolt 634 passes through the second belt wheel 63 and contacts with the moving block 633, and the bolt 634 is used for pressing the moving block 633. In operation, the existence of movable block 633 makes lug 69 below circular through-hole 68 can reciprocate to make things convenient for the change and the regulation of launching spring 65, avoided launching spring 65's damage to cause the service device to scrap, improved service device's practicality.

As shown in fig. 2, the bottom plate 5 is made of rubber, and the bottom plate 5 is provided with dust falling holes for preventing dust from accumulating on the bottom plate 5. The during operation, when launching plate 66 launches the table tennis, because of bottom plate 5 is the rubber material, can not bounce when making the table tennis fall on bottom plate 5, avoided the table tennis to drop from bottom plate 5, rubber material makes bottom plate 5 shake simultaneously, thereby make dust on the bottom plate 5 fall from the ash hole that falls on bottom plate 5, it gathers difficult clearance to have avoided the dust on the bottom plate 5, avoided dust on the launching plate 66 to cause the hindrance to the steering adjustment of launching plate 66, the subsidiary dust of the table tennis of having avoided launching simultaneously, the practicality of service device has been improved.

The specific operation flow is as follows:

when the table tennis ball launching device works, table tennis balls fall from the ball feeding hopper 3 and slide onto the launching plate 66 along the bottom plate 5, at the moment, the second magnet 71 is driven to move downwards through the force accumulation module 7, so that the first magnet 67 drives the launching plate 66 to move downwards, the launching spring 65 is lengthened, when the attraction force of the second magnet 71 to the first magnet 67 is not enough to enable the first magnet 67 and the second magnet 71 to be attracted, the launching plate 66 is separated instantly, so that the table tennis balls are launched out, in the process, the controller controls the first motor 61 to work, so that the first motor 61 drives the first belt wheel 62 to rotate, the second belt wheel 63 rotates along with the first belt wheel 62, so that the lug 69 in the circular through hole 68 rotates and extrudes the launching spring 65 upwards or downwards, the launching spring 65 is lengthened or compressed, the elasticity of the launching spring 65 is changed, and the launching force of the table tennis balls is adjusted, the practicality of the service robot is improved, the working time of the first motor 61 on two sides is different through the controller, the compression or extension of the launching springs 65 on two sides is different, the launching angle of the table tennis in the horizontal direction is adjusted, and the practicability of the service robot is further improved.

When the launching plate 66 is located at the lowest ball serving position, the launching plate 66 is perpendicular to the bottom plate 5, the knob 668 at the end of the adjusting rod 664 is rotated, so that the adjusting block 663 and the launching plate 66 rotate, the included angle between the launching plate 66 and the bottom plate 5 is enlarged, the launching angle in the vertical direction of the table tennis ball is changed, the practicability of the ball serving device is effectively improved, the adjusting block 663 can only do horizontal movement in the rotating process due to the thread arrangement of the adjusting block 663 and the mounting block 662, the adjusting block 663 is extruded due to the existence of the spring, the pressure between the adjusting block 663 and the thread of the mounting block 662 is enlarged, the friction force between the adjusting block 663 and the mounting block 662 is enlarged, the adjusting block 663 is prevented from easily rotating in the mounting block 662, the adjusted angle cannot be easily changed, and the practicability of the ball serving device is effectively improved.

The second motor 75 rotates to make the two first sliders 72 approach or separate from each other, so that the scissors mechanism 74 extends or shortens, and further make the second slider 73 approach or separate from each other, so that the second slider 73 drives the support plate 77 and the second magnet 71 to move up and down, when the second magnet 71 approaches the first magnet 67, the first magnet 67 and the second magnet 71 are attracted together, when the second magnet 71 moves down, the first magnet 67 moves down along with the second magnet 71, the first magnet 67 drives the launching plate 66 to move down and extend the launching spring 65, finally the second magnet 71 is separated from the first magnet 67, so that the launching spring 65 drives the launching plate 66 to launch the ping-pong ball, when the scissors mechanism 74 extends or shortens, the extrusion plate 9 contacts and separates from the elastic airbag 43 under the action of the scissors mechanism 74, so that the elastic airbag 43 delivers gas to the gas storage chamber 8 through the one-way gas outlet valve, and absorb gas from the external world through the one-way admission valve, gaseous deposit has been realized, the energy that the motion of scissors fork mechanism 74 produced has rationally been utilized, the waste of energy has been avoided, input gas in rectangular cavity 665 of launching plate 66 through gas receiver 8 and air duct 667, and through the quantity of gas of control input rectangular cavity 665 of launching plate 66 both sides, make the elasticity of launching plate 66 both sides different, thereby make the launch angle of table tennis obtain the fine setting, make the launch angle of table tennis adjust more accurately, and make the table tennis rotatory because of the both sides atress difference at the in-process of transmission, the practicality of serving device has been improved.

When the scissors mechanism 74 contracts, the upper pressure plate 91 and the lower pressure plate 92 approach each other under the extrusion action of the scissors mechanism 74 due to the existence of the connecting rod 44, so that the elastic air bag 43 is pressed by the upper pressure plate 91 and the lower pressure plate 92 simultaneously, the compression amount of the elastic air bag 43 is increased, the gas storage speed in the air storage chamber 8 is further increased, the utilization efficiency of the ball serving device on the energy of the scissors mechanism 74 is improved, and the cost is saved.

The existence of movable block 633 makes lug 69 below circular through-hole 68 can reciprocate to make things convenient for the change and the regulation of launching spring 65, avoided launching spring 65's damage to cause the service device to scrap, improved service device's practicality.

When launching plate 66 launches the table tennis, because of bottom plate 5 is the rubber material, can not bounce when making the table tennis fall on bottom plate 5, avoided the table tennis to drop from bottom plate 5, rubber material makes bottom plate 5 shake simultaneously, thereby make the dust on the bottom plate 5 fall from the ash hole that falls on bottom plate 5, avoided the dust on bottom plate 5 to gather difficult clearance, avoided the dust on the launching plate 66 to adjust to turning to of launching plate 66 and cause the hindrance, avoided the incidental dust of the table tennis of launching simultaneously, the practicality of serving the device has been improved.

While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

Industrial applicability

According to the table tennis teaching training method, the strain capacity of the student can be effectively improved, the table tennis foundation of the student is firmly played, and therefore the table tennis teaching training method is useful in the technical field of table tennis teaching training.

Claims

1. A table tennis training method is characterized in that: the method comprises the following steps:

s1: the method comprises the following steps of arranging a training wall, utilizing the training wall to carry out batting training on a student, splicing the training wall by a plurality of materials with different elasticity and different smoothness, wherein the plurality of different materials are used for changing the rebound speed and the rebound angle of the table tennis;

s2: after the training wall is arranged in the S1, table tennis is launched to the training wall through the table tennis serving device;

s3: after the table tennis is launched in the S2, arranging electric guide rails at the bottoms of the table tennis serving device and the training wall, so that the training wall and the table tennis serving device move ceaselessly;

s5: after the pressure sensor is arranged in the S4, the broadcaster is arranged and broadcasts the hitting force between the table tennis bat and the table tennis ball in real time through the broadcaster, so that the student can timely adjust the force;

the table tennis serving device adopted in the S2 comprises a mounting plate (1), a mounting rod (2), a ball feeding hopper (3), a fixing frame (4), a bottom plate (5), a launching module (6), a power storage module (7) and a controller; the mounting rod (2) is of an L-shaped structure, and one end of the mounting rod (2) is fixed at the right end of the mounting plate (1); the ball feeding hopper (3) is fixed at the end part of the mounting rod (2), and the ball feeding hopper (3) is positioned above the mounting plate (1); the fixing frame (4) is obliquely fixed on the mounting plate (1), the fixing frame (4) is of a door-shaped structure, two rectangular bulges which are symmetrical in front and back are arranged on the inner side of the upper end of the fixing frame (4), and through holes are formed in the rectangular bulges; the bottom plate (5) is arranged on the lower surface of the fixing frame (4), and the bottom plate (5) is used for limiting the table tennis; the launching module (6) is positioned in the fixing frame (4), and the launching module (6) is used for launching the table tennis; the transmitting module (6) comprises a first motor (61), a first belt wheel (62), a second belt wheel (63), a conveying belt (64), a transmitting spring (65), a transmitting plate (66) and a first magnet (67); the number of the first motors (61) is two, and the first motors (61) are respectively fixed on the front wall and the rear wall of the fixing frame (4); the number of the first belt wheels (62) is two, and the first belt wheels (62) are arranged on an output shaft of the first motor (61); the fixing frame (4) is provided with two channels (41), the channels (41) are located at the upper end of the fixing frame (4), and the channels (41) are symmetrically arranged in the front and back direction; the number of the second belt wheels (63) is two, the second belt wheels (63) are rotatably arranged on the lower surfaces of the rectangular protrusions of the fixing frame (4), circular through holes (68) are formed in the second belt wheels (63), two convex blocks (69) are arranged on two sides of the inner wall of each circular through hole (68), and the upper and lower positions of the two convex blocks (69) are asymmetric; the conveying belt (64) is installed with a second belt wheel (63) through a first belt wheel (62), and the conveying belt (64) is used for driving the second belt wheel (63) to rotate; the number of the emission springs (65) is two, the emission springs (65) are arranged in a bilateral symmetry mode, the upper ends of the emission springs (65) penetrate through a second belt wheel (63) and are connected with the rectangular bulges on the fixed frame (4), and the emission springs (65) are in contact with the convex blocks (69); the two ends of the launching plate (66) are connected with the lower ends of the two launching springs (65), the launching plate (66) is made of rubber, and the launching plate (66) is used for launching table tennis balls; the first magnet (67) is embedded in the lower bottom surface of the emitting plate (66); the power storage module (7) is positioned in the fixing frame (4), the upper end of the power storage module (7) is provided with a second magnet (71), the second magnet (71) is used for attracting the first magnet (67), and the power storage module (7) is used for pulling the launching plate (66); the controller is located mounting panel (1), and the controller is used for controlling the work of a motor (61).

2. A table tennis training method according to claim 1, wherein: the transmitting plate (66) is provided with an adjusting piece (661), and the adjusting piece (661) is used for adjusting the transmitting angle of the transmitting plate (66); the adjusting piece (661) comprises a mounting block (662), an adjusting block (663) and an adjusting rod (664); the number of the mounting blocks (662) is two, the mounting blocks (662) are connected with the lower end of the launching spring (65), threaded holes are formed in the mounting blocks (662), springs are arranged in the threaded holes, and through holes are formed in the mounting blocks (662); the number of the adjusting blocks (663) is two, the adjusting blocks (663) are installed at two ends of the emission plate (66), threads are arranged outside the adjusting blocks (663), the adjusting blocks (663) are installed in threaded holes of the installation blocks (662) through the threads, and the adjusting blocks (663) are used for adjusting the angle of the emission plate (66); one end of the adjusting rod (664) penetrates through the through hole in the mounting block (662) to be connected with the adjusting block (663), the other end of the adjusting rod (664) is provided with a knob (668), and the adjusting rod (664) is used for driving the adjusting block (663) to rotate; the fixing frame (4) is further provided with two adjusting holes (42), the number of the adjusting holes (42) is two, the adjusting holes (42) are arranged in a left-right mode, the distribution of the adjusting holes (42) corresponds to that of the adjusting rods (664), and the adjusting holes (42) are used for facilitating rotation of the knob (668).

3. A table tennis training method according to claim 1, wherein: the power storage module (7) comprises a first sliding block (72), a second sliding block (73), a scissor mechanism (74), a second motor (75), a screw (76) and a supporting plate (77); the first sliding blocks (72) are arranged in a bilaterally symmetrical mode, the first sliding blocks (72) are installed at the bottom of the fixing frame (4) in a sliding mode, threaded holes are formed in the first sliding blocks (72), and the threaded holes in the two first sliding blocks (72) are opposite in rotating direction; the second motor (75) is arranged at the lower end of the front wall of the fixed frame (4); one end of the screw rod (76) is connected with an output shaft of the second motor (75), the other end of the screw rod (76) is rotatably connected with the rear inner wall of the fixing frame (4), and the screw rod (76) is used for driving the first sliding block (72) to move; the supporting plate (77) is positioned below the second magnet (71), a sliding groove (771) is formed in the lower surface of the supporting plate (77), and the supporting plate (77) is used for fixing the second magnet (71); the number of the second sliding blocks (73) is two, the second sliding blocks (73) are arranged in a bilateral symmetry mode, the second sliding blocks (73) are installed in the sliding grooves (771) in a sliding mode, and springs are arranged between the second sliding blocks (73); the shearing fork mechanism (74) is positioned in the fixed frame (4), the lower end of the shearing fork mechanism (74) is hinged with the two first sliding blocks (72), the upper end of the shearing fork mechanism (74) is hinged with the two second sliding blocks (73), and the shearing fork mechanism (74) is used for driving the second sliding blocks (73) to move; the inner wall of the fixing frame (4) is provided with two elastic air bags (43), the elastic air bags (43) are arranged in bilateral symmetry, and the elastic air bags (43) are provided with one-way air inlet valves and one-way air outlet valves; the mounting plate (1) is provided with a gas storage chamber (8), the gas storage chamber (8) is connected with a one-way gas outlet valve of the elastic air bag (43) through a pipeline, and the gas storage chamber (8) is used for storing gas; the fixed frame (4) is also internally provided with two extrusion plates (9), the extrusion plates (9) are arranged in a bilateral symmetry manner, the extrusion plates (9) are hinged with a hinge point of the scissors fork mechanism (74), and the extrusion plates (9) are used for extruding the elastic air bag (43); the emitting plate (66) is internally provided with a plurality of first rectangular cavities (665), the first rectangular cavities (665) are arranged in a bilateral symmetry mode, the number of the first rectangular cavities (665) on the two sides of the emitting plate (66) is the same, the emitting plate (66) is also provided with air paths (666), the number of the air paths (666) is two, and the air paths (666) respectively communicate the first rectangular cavities (665) on the two sides of the emitting plate (66); still be equipped with air duct (667) on emission plate (66), air duct (667) quantity is two, and air duct (667) is linked together with gas circuit (666), and air duct (667) is linked together gas circuit (666) and gas receiver (8), and air duct (667) is arranged in to transmitting plate (66) conveying gas.

4. A table tennis training method according to claim 3, wherein: the extrusion plate (9) comprises an upper pressing plate (91) and a lower pressing plate (92), and the upper pressing plate (91) and the lower pressing plate (92) are hinged with each other; the fixing frame (4) is also internally provided with a connecting rod (44), the connecting rod (44) is hinged with a hinged point of the upper pressing plate (91) and the lower pressing plate (92), and the connecting rod (44) is used for enabling the upper pressing plate (91) and the lower pressing plate (92) to rotate around the hinged point.

5. A table tennis training method according to claim 1, wherein: a second rectangular cavity (631) and a slide way (632) are arranged in the second belt wheel (63), and the second rectangular cavity (631) is communicated with the circular through hole (68) of the second belt wheel (63) through the slide way (632); a moving block (633) is further arranged in the second rectangular cavity (631), the moving block (633) is connected with a bump (69) below the circular through hole (68), and the moving block (633) is used for driving the bump (69) to move up and down; be equipped with bolt (634) on No. two band pulleys (63), bolt (634) pass No. two band pulleys (63) and contact with movable block (633), and bolt (634) are used for compressing tightly movable block (633).

6. A table tennis training method according to claim 1, wherein: the bottom plate (5) is made of rubber, and a dust falling hole is formed in the bottom plate (5) and used for preventing dust on the bottom plate (5) from being accumulated.