CN207993327U - Table tennis force analysis demonstrator - Google Patents

Table tennis force analysis demonstrator Download PDF

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Publication number
CN207993327U
CN207993327U CN201820042133.9U CN201820042133U CN207993327U CN 207993327 U CN207993327 U CN 207993327U CN 201820042133 U CN201820042133 U CN 201820042133U CN 207993327 U CN207993327 U CN 207993327U
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CN
China
Prior art keywords
table tennis
demonstrator
arrow shaft
ball
blade
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201820042133.9U
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Chinese (zh)
Inventor
张兴海
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Yanshan University
Original Assignee
Yanshan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CN201820042133.9U priority Critical patent/CN207993327U/en
Application granted granted Critical
Publication of CN207993327U publication Critical patent/CN207993327U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The table tennis force analysis demonstrator that the utility model is related to be used when a kind of a kind of sports apparatus, more particularly to table tennis technology theory teaching.The main frame of the demonstrator is made of connector, scale, bottom plate, perpendicular handle, blade, ball, the centre of sphere, jack, heart arrow shaft, arrow shaft, shake-hands grip handle and vernier;Using the demonstrator aided education, the mechanics principle of table tennis rotary generation and the face shape of square stance can be demonstrated, student can be made intuitively to see sphere Impact direction situation of change and square stance bat angle adjustment situation.To deepen understanding of the student to table tennis rotary and the characteristics of motion, improve learning interest, fast understanding and table tennis technology knowwhy can be grasped in a short time.The application of the demonstrator has practical significance to improving table tennis technology theory teaching effect.

Description

Table tennis force analysis demonstrator
Technical field
The table tennis that the utility model is related to be used when a kind of a kind of sports apparatus, more particularly to table tennis technology theory teaching Ball force analysis demonstrator.
Background technology
In table tennis technology theory teaching, the face shape for explaining mechanics principle and square stance that table tennis rotary generates is needed Shape.Currently, not having related suitable teaching aid cooperation demonstration explanation in field research, the main method of use is diagram or teacher It holds the puck and bat is demonstrated.Both of which is not easily achieved the mechanics principle that clearly and accurately demonstration table tennis rotary generates And the angle that racket square stance should have, it is difficult to which student is allowed to understand that table tennis generates the changing rule of rotation after stress.It influences Correct understanding of the student to table tennis technology principle, to be unable to reach the purpose for quickly grasping table tennis technology.
To solve the above-mentioned problems, it the utility model proposes a kind of table tennis force analysis demonstrator, is specifically intended for rattling When playing skill art theory teaching, the face shape of mechanics principle and square stance that demonstration table tennis rotary generates.
Technical solution used by the utility model is:A kind of table tennis force analysis demonstrator, the main frame of the demonstrator Frame is made of connector, scale, bottom plate, perpendicular handle, blade, ball, the centre of sphere, jack, heart arrow shaft, arrow shaft, shake-hands grip handle and vernier; Wherein, two verniers are respectively fitted on two semicircle scales, and are fixed by screw, two scale lower ends respectively on bottom plate Hold fixed-link;Connector lower end and bottom plate upper end fixed-link, connector upper end slot and perpendicular handle lower end by screw axis and Nut connects, and erects handle upper end and fixed-link in the middle part of blade lower end, blade lower end both sides are fixed with two vernier upper ends respectively It links, blade side and shake-hands grip handle one end fixed-link, middle part and ball one end fixed-link in blade;The ball is equipped with Several jacks, heart arrow shaft and arrow shaft can be inserted on the jack of ball, and the section of ball is vertical with blade face.The heart arrow shaft It is equipped with the centre of sphere, the scale is equipped with graduated scale.
Table tennis force analysis demonstrator structure is simple, easy to use.Ball on the ball plate of the demonstrator can be shown as The section of table tennis, heart arrow shaft can be shown as the position by ball center's power, and arrow shaft can be shown as not through ball center's power Position can demonstrate table tennis stressing conditions by ball, heart arrow shaft and arrow shaft, to combine demonstration explanation that ball is made to generate rotation The fundamental cause turned;Teacher is adjusted to various required different angles by adjusting vernier, by ball plate, clearly and accurately demonstrates With explanation when various corresponding different angles are flicked, ball moment how to be made to generate different rotations;The perpendicular handle of the demonstrator With shake-hands grip handle, demonstration different directions is facilitated to hold bat and impact arm power thrusts.Using the demonstrator aided education, can make Student intuitively sees sphere Impact direction situation of change and square stance bat angle adjustment situation.To deepen student to table tennis The understanding of pang ball rotation and the characteristics of motion, improve learning interest, can in a short time fast understanding and grasp table tennis Technical know-how knowledge.The application of the demonstrator has practical significance to improving table tennis technology theory teaching effect.
Description of the drawings
Specific embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
The three-dimensional simplified schematic diagram of Fig. 1 the utility model.
Specific implementation mode
The table tennis force analysis demonstrator that the utility model is proposed uses such as lower structure, as shown in Figure 1, the demonstrator Two verniers 12 be respectively fitted on two semicircle scales 2, and fixed by screw, two scale lower ends respectively with bottom plate 3 Upper end fixed-link.1 lower end of connector and bottom plate upper end fixed-link, connector upper end slot pass through screw with 4 lower end of perpendicular handle Axis is connected with nut.Perpendicular handle upper end and fixed-link in the middle part of 5 lower end of blade, blade lower end both sides respectively with two vernier upper ends Fixed-link, blade side and 11 one end fixed-link of shake-hands grip handle, middle part and 6 one end fixed-link of ball in blade.The ball Ring is equipped with several jacks 8, and heart arrow shaft 9 and arrow shaft 10 can be inserted on the jack of ball, and the heart arrow shaft is equipped with the centre of sphere 7。
Said scale is equipped with scale mark.
When in use, which is placed on table tennis table or dais, adjusts slider position, make blade with bottom plate at vertical Directly.It is inserted in another side opening after heart arrow shaft is passed through one side opening of ball, keeps its heart arrow shaft vertical with blade, then arrow shaft is passed through into ball It is inserted in another side opening after one side opening of ring.It can be in conjunction with the mechanics principle that demonstration explanation table tennis rotary generates, such as:Square stance, It holds shake-hands grip handle or perpendicular handle strikes table tennis, if the position of power is by the center (seeing that heart arrow shaft indicates) of ball, ball only has There is certain forward speed, and without any rotation.If square stance, the position of power is not by ball center, and and the centre of sphere There is certain vertical range (seeing that arrow shaft indicates), ball just will produce rotation.Due to the generation of the arm of force, Force decomposition be perpendicular to The component of face and the component for being parallel to face, and frictional force is exactly the fundamental cause for making ball generate rotation.
When the face shape of demonstration explanation square stance, two verniers are adjusted according to the scale on scale, make the blade of racket In different location.It is explained then in conjunction with demonstration, what is bat surface closed to square stance, what is bat tilted backward.Forehand is backhanded attack When clap shape and should lean forward or vertically, shape is clapped when chopping the chop the technologies such as should swing back.It can be refined with the demonstrator in teaching a certain Shot is explained, and is batted using which kind of action under a certain angle case by lecture experiment explanation, club generates after batting Which type of rotation, which type of route etc..

Claims (1)

1. a kind of table tennis force analysis demonstrator, it is characterised in that:The main frame of the demonstrator by connector, scale, bottom plate, Perpendicular handle, blade, ball, the centre of sphere, jack, heart arrow shaft, arrow shaft, shake-hands grip handle and vernier composition;Wherein, two verniers (12) difference Be sleeved on two semicircle scales (2), and fixed by screw, two scale lower ends respectively with bottom plate (3) upper end fixed-link; Connector (1) lower end and bottom plate upper end fixed-link, connector upper end slot are connected with perpendicular handle (4) lower end by screw axis and nut It connects, erects handle upper end and fixed-link in the middle part of blade (5) lower end, chain is fixed in blade lower end both sides with two vernier upper ends respectively It connects, blade side and shake-hands grip handle (11) one end fixed-link, middle part and ball (6) one end fixed-link in blade;The ball Several jacks (8) are equipped with, heart arrow shaft (9) and arrow shaft (10) can be inserted on the jack of ball, and the heart arrow shaft is equipped with The centre of sphere (7).
CN201820042133.9U 2018-01-11 2018-01-11 Table tennis force analysis demonstrator Expired - Fee Related CN207993327U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820042133.9U CN207993327U (en) 2018-01-11 2018-01-11 Table tennis force analysis demonstrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820042133.9U CN207993327U (en) 2018-01-11 2018-01-11 Table tennis force analysis demonstrator

Publications (1)

Publication Number Publication Date
CN207993327U true CN207993327U (en) 2018-10-19

Family

ID=63820157

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820042133.9U Expired - Fee Related CN207993327U (en) 2018-01-11 2018-01-11 Table tennis force analysis demonstrator

Country Status (1)

Country Link
CN (1) CN207993327U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20181019

Termination date: 20190111

CF01 Termination of patent right due to non-payment of annual fee