CN203982636U - The strong and weak transformationization demonstrator of table tennis - Google Patents

The strong and weak transformationization demonstrator of table tennis Download PDF

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Publication number
CN203982636U
CN203982636U CN201420368781.5U CN201420368781U CN203982636U CN 203982636 U CN203982636 U CN 203982636U CN 201420368781 U CN201420368781 U CN 201420368781U CN 203982636 U CN203982636 U CN 203982636U
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CN
China
Prior art keywords
bing
plate
vertical pivot
transverse axis
tennis
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Expired - Fee Related
Application number
CN201420368781.5U
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Chinese (zh)
Inventor
张兴海
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Yanshan University
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Yanshan University
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Priority to CN201420368781.5U priority Critical patent/CN203982636U/en
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Publication of CN203982636U publication Critical patent/CN203982636U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of sports apparatus, the strong and weak transformationization demonstrator of table tennis particularly using during a kind of table tennis technology theory teaching.This demonstrator is comprised of base plate 1, Qianmen 2, dividing plate 3, casing 4, Zhuan Bing 5, Bing axles 6, upper plate 7, vertical pivot 8, large bouquet 9, left plate 10, transverse axis 11, little bouquet 12, little orange ball 13, large orange ball 14, jack 15, large Archon 16, transverse axis cover 17, left conical gear 18, large conical gear 19, vertical pivot cover 21, right plate 23 He Bing axle sleeves 25.This demonstrator can be demonstrated the spheroid of different sizes, different colours respectively according to vertical pivot and the strong and weak phenomenon changing of transverse axis rotation, can make sportsman see intuitively different spheroid rotation speed situations of change, and on spheroid, zones of different is rotated strong and weak situation.Thereby, deepen the understanding of sportsman to table tennis rotary velocity variations, reach the object of quick grasp table tennis technology.

Description

The strong and weak transformationization demonstrator of table tennis
Technical field
The utility model relates to a kind of sports apparatus, the strong and weak transformationization demonstrator of table tennis particularly using during a kind of table tennis technology theory teaching.
Background technology
During ping-pong contest, due to sportsman's square stance size and Orientation difference of exerting oneself, and the thin degree of friction ball is different, and the rotational speed that after batting, ball produces and direction are also different.Variation in correct judgement table tennis rotary speed and direction is the key that improves return of serve quality.During table tennis technology theory teaching, in order to allow student better understand the rotation regulation of table tennis, often adopt demonstration instrument aided education.The applicant has researched and developed experimental demonstration instrument of rotational axis of table tennis 200720138431.X, table tennis coordinate axis demonstrator 201120251509.5 and table tennis ball flying path demonstrator 201120251860.4 in earlier stage.These instruments have played good booster action to the teaching of table tennis technology theory and training, facts have proved and can make sportsman fast understanding and grasp table tennis technology knowwhy at short notice.But in putting into practice utilization process, although find that above-mentioned demonstration instrument can demonstrate the universal law of table tennis rotary, the speed variation phenomenon poor effect to the rotation of demonstration spheroid.
Utility model content
In order to address the above problem, the utility model proposes the strong and weak transformationization demonstrator of a kind of table tennis, this demonstrator is provided with the spheroid of the different sizes of three covers, different colours, during specially in order to Table tennis skill teaching, demonstration table tennis rotary speed variation phenomenon, strengthens the understanding of sportsman to table tennis rotary.
The technical scheme that the utility model adopts is: the strong and weak transformationization demonstrator of a kind of table tennis, this demonstrator main frame is comprised of base plate, Qianmen, dividing plate, casing, Zhuan Bing, Bing axle, upper plate, vertical pivot, large bouquet, left plate, transverse axis, little bouquet, little orange ball, large orange ball, jack, large Archon, transverse axis cover, large conical gear, vertical pivot cover, right plate He Bing axle sleeve.Wherein, casing lower end is fixedly connected with base plate, and casing middle part is provided with dividing plate, is provided with Qianmen before casing; Dividing plate upper end is connected by screw and nut with perpendicular base lower end, perpendicular base upper end adopts and is threaded with vertical pivot cover lower end, vertical pivot cover is connected with vertical pivot bottom, and vertical pivot middle part is provided with large conical gear, and vertical pivot upper end is through being threaded connection with large bouquet after upper plate hole; Bing axle sleeve is connected with Bing axle; the Bing base of Bing axle sleeve is connected by screw and nut with right plate; Bing axle one end through after the plate hole of right side with turn Bing and be connected by screw, the other end of Bing axle is fixedly connected with right conical gear one end, the right conical gear other end is connected with large conical gear; Transverse axis cover is connected with transverse axis, the horizontal base of transverse axis cover is connected by screw and nut with left plate, transverse axis one end is threaded connection with little bouquet through after the plate hole of left side, and the transverse axis other end is fixedly connected with left conical gear one end, and the left conical gear other end is connected with large conical gear.
Described vertical pivot is through bearing inner ring hole, and bearing is arranged on vertical pivot cover two ends, outer race and perpendicular inner hole of shaft sleeve interference fit, fastening nuts bearing inner ring end face.
The strong and weak transformationization demonstrator structure of table tennis is simple, easy to use.The vertical pivot of this demonstrator, transverse axis and turn Bing axle and be connected by cone gear, turn and turn Bing and can make the spheroid on vertical pivot and transverse axis rotate simultaneously, and the speed that can turn by turning Bing is controlled the speed that spheroid rotates.Three cover spheroids are comprised of six spheroids of different sizes, different colours, are convenient to carry out contrast experiment.Vertical pivot, transverse axis and six spheroids all adopt and are threaded, and facilitate the handling of spheroid, in the lower part box of this instrument, can deposit a plurality of spheroids, facilitate the storage of spheroid; This demonstrator can be demonstrated the spheroid of different sizes, different colours respectively according to vertical pivot and the strong and weak phenomenon changing of transverse axis rotation, can make sportsman see intuitively different spheroid rotation speed situations of change, and on spheroid, zones of different is rotated strong and weak situation.Thereby, deepen the understanding of sportsman to table tennis rotary velocity variations, improve the interest of study table tennis technology theory, reach the object of quick grasp table tennis technology.Therefore, adopt this instrument to assist table tennis theory teaching, can make teaching means more standard, science, have more cogency.Apply this demonstrator and there is practical significance to improving table tennis technology theory teaching effect.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
Fig. 1 three-dimensional simplified schematic diagram of the present utility model;
The three-dimensional simplified schematic diagram of Fig. 2 the utility model inner structure;
Fig. 3 is that A-A of Fig. 1 is to cut-open view.
Embodiment
Strong and weak the transformationizations demonstrator of table tennis that the utility model proposes adopts following structure, and as shown in Figure 1, 2, 3, casing 4 lower ends of this demonstrator are fixedly connected with base plate 1, are provided with dividing plate 3 in the middle part of casing, is provided with Qianmen 2 before casing; Dividing plate upper end is connected by screw and nut with perpendicular base 22 lower ends, perpendicular base 22 upper ends are overlapped 21 lower ends employings with vertical pivot and are threaded, vertical pivot cover 21 is connected with vertical pivot 8 bottoms, and vertical pivot middle part is provided with large conical gear 19, and vertical pivot upper end is through being threaded connection with large bouquet 9 behind upper plate 7 holes; Bing axle sleeve 25 is connected with Bing axle 6; the Bing base 24 of Bing axle sleeve is connected by screw and nut with right plate 23; Bing axle one end through after the plate hole of right side with turn Bing 5 and be connected by screw; the other end of Bing axle is fixedly connected with right conical gear 26 one end, and the right conical gear other end is connected with large conical gear; Transverse axis cover 17 is connected with transverse axis 11, the horizontal base of transverse axis cover is connected by screw and nut with left plate 10, transverse axis one end is threaded connection with little bouquet 12 through after the plate hole of left side, the transverse axis other end is fixedly connected with left conical gear 18 one end, and the left conical gear other end is connected with large conical gear.
On above-mentioned little bouquet, large bouquet, little orange ball 13, large orange ball 14, jack 15 and large Archon 16, be equipped with screw.
Above-mentioned vertical pivot is through the interior annular distance of bearing 27, and bearing is arranged on vertical pivot cover two ends, outer race and perpendicular inner hole of shaft sleeve interference fit, the fastening bearing inner ring end face of nut 20.
In use, this demonstrator is placed on platform table or table tennis table, according to the content of courses, need to respectively large bouquet and little bouquet be arranged on vertical pivot and transverse axis, teacher is with hand reinforcing or subtract power Zhuan Dong Zhuan Bing, allows large bouquet and little bouquet rotate simultaneously.Sportsman can observe the rotation speed situation of change of two bouquets, and on bouquet, zones of different is rotated strong and weak situation.Teacher is in conjunction with Zhuan Dong Zhuan Bing speed, explanation spheroid is along the process of different directions rotation and the spheroid of rotation is strong, Ruo Zhuan district situation of change, explain that any screw is all more weak the closer to the position rotation of turning axle, more stronger away from the position rotation of turning axle, avoid the strongest position batting of spheroid rotation, can improve the quality of return of serve, increase the accuracy scheduling theory knowledge of batting; Large bouquet and little bouquet are unloaded down, installed respectively large Archon and jack, afterburning or subtract power Zhuan Dong Zhuan Bing with hand, two balls are rotated simultaneously, when sportsman can observe speed and changes, the Archons of different sizes are along vertical pivot and transverse axis rotary state.Teacher is auxiliary in conjunction with demonstrator, and how the Archon of the different sizes of explanation produces top spin, chop, left side spin, right side spin, running ball and contrary spiral, how to fight back various rotation scheduling theory knowledge.Thereby, allow sportsman understand intuitively table tennis rotary rule; Large Archon and jack are unloaded down, installed respectively large orange ball and little orange ball, afterburning or subtract power Zhuan Dong Zhuan Bing with hand, sportsman can observe the orange balls of different sizes along transverse axis and vertical axes rotary state.How clockwise or reverse the scheduling theory knowledge of batting teacher is auxiliary in conjunction with demonstrator, and how explanation makes spheroid accelerate or the rotation of slowing down, and how to fight back and rotates ball faster; Again little orange ball is unloaded down, installed large Archon, afterburning or subtract power Zhuan Dong Zhuan Bing with hand, two balls are rotated simultaneously, sportsman can observe two kinds of different colours spheroids rotation speed situations of change, the difference of contrast different colours spheroid rotation.

Claims (1)

1. strong and weak the transformationizations demonstrator of table tennis, is characterized in that: this demonstrator main frame by base plate (1), Qianmen (2), dividing plate (3), casing (4), turn Bing (5), Bing axle (6), upper plate (7), vertical pivot (8), greatly bouquet (9), left plate (10), transverse axis (11), little bouquet (12), little orange ball (13), large orange ball (14), jack (15), Archon (16), transverse axis cover (17), large conical gear (19), vertical pivot cover (21), right plate (23) and Bing axle sleeve (25) form greatly; Wherein, casing lower end is fixedly connected with base plate, and casing middle part is provided with dividing plate, is provided with Qianmen before casing; Dividing plate upper end is connected by screw and nut with perpendicular base (22) lower end, perpendicular base upper end adopts and is threaded with vertical pivot cover lower end, vertical pivot cover is connected with vertical pivot bottom, and vertical pivot middle part is provided with large conical gear, and vertical pivot upper end is through being threaded connection with large bouquet after upper plate hole; Bing axle sleeve is connected with Bing axle; the Bing base (24) of Bing axle sleeve is connected by screw and nut with right plate; Bing axle one end through after the plate hole of right side with turn Bing and be connected by screw; the other end of Bing axle is fixedly connected with right conical gear (26) one end, and the right conical gear other end is connected with large conical gear; Transverse axis cover is connected with transverse axis, the horizontal base of transverse axis cover is connected by screw and nut with left plate, transverse axis one end is threaded connection with little bouquet through after the plate hole of left side, and the transverse axis other end is fixedly connected with left conical gear (18) one end, and the left conical gear other end is connected with large conical gear.
CN201420368781.5U 2014-07-04 2014-07-04 The strong and weak transformationization demonstrator of table tennis Expired - Fee Related CN203982636U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420368781.5U CN203982636U (en) 2014-07-04 2014-07-04 The strong and weak transformationization demonstrator of table tennis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420368781.5U CN203982636U (en) 2014-07-04 2014-07-04 The strong and weak transformationization demonstrator of table tennis

Publications (1)

Publication Number Publication Date
CN203982636U true CN203982636U (en) 2014-12-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111063249A (en) * 2019-12-23 2020-04-24 燕山大学 Table tennis universal shaft demonstration instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111063249A (en) * 2019-12-23 2020-04-24 燕山大学 Table tennis universal shaft demonstration instrument
CN111063249B (en) * 2019-12-23 2021-09-14 燕山大学 Table tennis universal shaft demonstration instrument

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141203

Termination date: 20150704

EXPY Termination of patent right or utility model