CN114534209B - Table tennis detection device - Google Patents
Table tennis detection device Download PDFInfo
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- CN114534209B CN114534209B CN202210197123.3A CN202210197123A CN114534209B CN 114534209 B CN114534209 B CN 114534209B CN 202210197123 A CN202210197123 A CN 202210197123A CN 114534209 B CN114534209 B CN 114534209B
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- shell
- table tennis
- push plate
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B47/00—Devices for handling or treating balls, e.g. for holding or carrying balls
- A63B47/008—Devices for measuring or verifying ball characteristics
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
- A63B2102/16—Table tennis
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- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to a table tennis detection device, which effectively solves the problem that the distribution uniformity of balls is difficult to detect; the technical proposal for solving the problem is that the device comprises a shell, wherein a straight track in the left and right directions is formed in the shell; an opening is arranged above the shell, a turntable is arranged above the opening, and a blind hole is formed in the outer edge surface of the turntable; a sliding block which is arranged on the left side of the opening and can move left and right is arranged in the shell, a push plate is arranged on the right side of the sliding block, and the sliding block is connected with the push plate through a spring; the front inner wall and the rear inner wall of the shell are respectively provided with a stop block arranged between the opening and the slide block, the two stop blocks can move back and forth, and when the push plate moves left and right to cross the two stop blocks, the two stop blocks form resistance to the push plate; the right side of the shell is provided with an arc track communicated with the straight track, and one end of the arc track is provided with a water pool; the invention solves the problem that the distribution uniformity of the spheres is difficult to detect, and has good detection effect and high efficiency.
Description
Technical Field
The invention relates to the field of sports, in particular to a table tennis detection device.
Background
When the quality of the table tennis is judged to be good or bad, the appearance of the table tennis is generally seen, whether the surface of the table tennis is fine and clean and not reflective, the waist seam of the table tennis is neat, whether the bounce height meets the requirement, even if the roundness of the outer surface of the table tennis is qualified, if the inner surface of the table tennis is unevenly distributed, the stability of the table tennis is poor, and the hitting point is not easy to control.
Before a match, when a player picks a ball, the player rotates a table tennis ball on a table top by using two hands, the quality of the ball is judged by looking at the deviation degree of the table tennis ball during rotation, if the ball deviates to one side during rotation or rotates in a spiral shape, the ball body is not uniformly distributed, and the ball cannot be well controlled; but the quality of only relying on the rotatory table tennis of people's both hands to observe and judging the ball is big, and wastes a large amount of time and energy, and manual operation is not accurate, can influence the judgement result, in addition, detects the roughness and the roughness of mesa and also can cause the interference to detecting.
Disclosure of Invention
In view of the above situation, in order to solve the problems existing in the prior art, the present invention provides a table tennis ball detecting device, which can effectively solve the problem that the distribution uniformity of balls is not easy to detect.
The technical scheme for solving the problem is that the device comprises a square shell which is through from left to right, and a straight track in the left-right direction is formed in the shell; an opening is arranged above the shell, a turntable is arranged above the opening, and a blind hole is formed in the outer edge surface of the turntable; a sliding block which is arranged on the left side of the opening and can move left and right is arranged in the shell, a push plate is arranged on the right side of the sliding block, and the sliding block is connected with the push plate through a spring; the front inner wall and the rear inner wall of the shell are respectively provided with a stop dog arranged between the opening and the slide block, the two stop dogs can move back and forth, and when the push plate moves left and right to cross the two stop dogs, the two stop dogs form resistance to the push plate; the right side of the shell is provided with an arc track communicated with the straight track, and one end of the arc track is provided with a water pool.
Preferably, a base plate is arranged in the shell below the opening, the upper end face of the base plate inclines backwards and downwards, and the right end face of the base plate is flush with the right end face of the shell.
Preferably, a hopper is arranged above the turntable, and a plurality of table tennis balls are contained in the hopper; an arc-shaped plate is coaxially arranged on the left side of the rotary table, the upper end of the arc-shaped plate is fixed on the hopper, and the lower end of the arc-shaped plate is fixed on the straight track.
Preferably, the left side of the shell is provided with a front through groove and a rear through groove, the front end face of the sliding block is fixed with a first hinged shaft, the first hinged shaft is arranged in the through groove of the corresponding side, the front side face of the rotary disc is fixed with a second hinged shaft, the second hinged shaft is not coaxial with the rotary disc, and the first hinged shaft and the second hinged shaft are hinged through a connecting rod.
Preferably, the slider is provided with a guide hole which is communicated with the left and the right, the left side of the push plate is fixed with a guide rod, the guide rod is arranged in the guide hole, and the spring is sleeved on the guide rod.
Preferably, the front inner wall and the rear inner wall of the shell are both provided with a groove arranged on the left side of the opening, the stop block is arranged in the groove, and a spring is arranged between the stop block and the bottom of the groove; one end of the stop block close to the middle of the shell is a tip, and the left end surface and the right end surface of the stop block are inclined surfaces inclined towards the middle; when the spring is in the original length, one end of the inclined plane of the stop block is arranged in the shell.
Preferably, a rotating shaft is fixed in the middle of the rear end face of the rotating disc, and the rear end of the rotating shaft is connected with a motor.
Preferably, the vertical section of the circular arc track is L-shaped, the inner bottom surface of the circular arc track is flush with the inner bottom surface of the straight track, and the inner side surface of the circular arc track is tangent to the rear inner side surface of the straight track.
Preferably, rubber layers are fixed on the rear inner side face of the straight track and the inner side face of the circular arc track.
The invention makes the push plate quickly strike the table tennis through the force stored by the spring to make the table tennis enter the circular arc track, overcomes the friction force and simultaneously has enough kinetic energy to maintain the rotation, simulates the rotation of the table tennis in the air through the rotation of the table tennis on the water surface, eliminates the interference of the roughness and the flatness of the detection table board as much as possible, has more accurate detection result, does not need manual sorting and one-by-one feeding, avoids the influence on the detection caused by manual operation, and has good detection effect and high efficiency.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 isbase:Sub>A sectional view A-A in fig. 2, wherein the table tennis ball 7 in the blind hole 5 enters the straight track 2, and the slide block 9 moves to the right to press the spring force.
Fig. 4 is a partially enlarged view of B in fig. 3.
Fig. 5 is a cross-sectional view of C-C in fig. 4.
Fig. 6 is a cross-sectional view of D-D in fig. 4.
Fig. 7 is a partial enlarged view of E in fig. 6.
Fig. 8 is a perspective view showing a positional relationship between the circular arc rail 12 and the pool 13.
Fig. 9 is a perspective view showing a positional relationship among the housing 1, the slider 9, and the push plate 10.
Fig. 10 is a perspective view of the housing 1 with the front side removed and the position relationship between the inner slide 9 and the push plate 10.
Fig. 11 is a front cross-sectional view of the device, in the figure, table tennis balls 7 in a hopper 6 enter a blind hole 5, and a sliding block 9 moves leftwards to pull a spring to accumulate force.
Detailed Description
The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 11, the present invention includes a square housing 1 penetrating from left to right, a straight rail 2 is formed in the housing 1 in the left-right direction; an opening 3 is arranged above the shell 1, a rotary table 4 is arranged above the opening 3, and a blind hole 5 is formed in the outer edge surface of the rotary table 4;
a slide block 9 which is arranged on the left side of the opening 3 and can move left and right is arranged in the shell 1, a push plate 10 is arranged on the right side of the slide block 9, and the slide block 9 is connected with the push plate 10 through a spring; the front inner wall and the rear inner wall of the shell 1 are respectively provided with a stop block 11 arranged between the opening 3 and the slide block 9, the two stop blocks 11 can move back and forth, and when the push plate 10 moves left and right to cross the two stop blocks 11, the two stop blocks 11 form resistance to the push plate 10;
the right side of the shell 1 is provided with a circular arc track 12 communicated with the straight track 2, and one end of the circular arc track 12 is provided with a water pool 13.
A base plate 8 arranged below the opening 3 is arranged in the shell 1, the upper end face of the base plate 8 inclines downwards backwards, and the right end face of the base plate 8 is flush with the right end face of the shell 1.
A hopper 6 is arranged above the turntable 4, and a plurality of table tennis balls 7 are contained in the hopper 6; an arc-shaped plate 14 is coaxially arranged on the left side of the rotary table 4, the upper end of the arc-shaped plate 14 is fixed on the hopper 6, and the lower end of the arc-shaped plate 14 is fixed on the straight track 2; the rotary table 4 rotates for a circle to enable a table tennis ball 7 in the hopper 6 to enter the blind hole 5 and enter the straight track 2 in the shell 1 through the opening 3, and the rotary table 4 drives the table tennis ball 7 to rotate towards the opening 3, so that the table tennis ball 7 cannot be separated from the blind hole 5 through the support of the arc-shaped plate 14.
A front through groove 15 and a rear through groove 15 are formed in the left side of the shell 1, a first hinge shaft 16 is fixed on the front end face of the sliding block 9, the first hinge shaft 16 is arranged in the through groove 15 on the corresponding side, a second hinge shaft 17 is fixed on the front side face of the rotary table 4, the second hinge shaft 17 is not coaxial with the rotary table 4, and the first hinge shaft 16 and the second hinge shaft 17 are hinged through a connecting rod 18; the rotary disc 4 rotates and drives the slide block 9 to move left and right through the connecting rod 18.
A guide hole 19 which is through from left to right is formed in the sliding block 9, a guide rod 20 is fixed on the left side of the push plate 10, the guide rod 20 is arranged in the guide hole 19, and the spring is sleeved on the guide rod 20; the push plate 10 is moved in a straight line by the guide action of the guide rod 20 moving in the guide hole 19.
The front inner wall and the rear inner wall of the shell 1 are both provided with a groove 21 arranged on the left side of the opening 3, the stop block 11 is arranged in the groove 21, and a spring is arranged between the stop block 11 and the bottom of the groove 21; one end of the stop block 11 close to the middle of the shell 1 is a tip, and the left end face and the right end face of the stop block are inclined planes inclined towards the middle; when the spring is in the original length, one end of the inclined plane of the stop block 11 is arranged in the shell 1; the left side spring of the push plate 10 stores force to push the push plate 10 to the right, the push plate 10 enables the stop block 11 to move towards the groove 21 by extruding the left side inclined plane of the stop block 11, and the push plate 10 can cross the stop block 11 from left to right; the push plate 10 moves leftwards under the pulling of the left spring, the stopper 11 moves inwards to the groove 21 by pressing the right inclined surface of the stopper 11, and the push plate 10 can cross the stopper 11 from right to left.
A rotating shaft 22 is fixed in the middle of the rear end face of the rotating disc 4, and the rear end of the rotating shaft 22 is connected with a motor; the rotating shaft 22 is driven by the motor to rotate, thereby driving the rotating disc 4 to rotate.
The vertical section of the circular arc track 12 is L-shaped, the inner bottom surface of the circular arc track 12 is flush with the inner bottom surface of the straight track 2, and the inner side surface of the circular arc track 12 is tangent to the rear inner side surface of the straight track 2.
When the invention is used, the upper end surface of the water tank is flush with the bottom surface of the inner side of the circular arc track 12, and water is added into the water tank to enable the water surface to be flush with the bottom surface of the inner side of the circular arc track 12; a plurality of table tennis balls 7 are loaded in the hopper 6, the starting motor drives the rotary table 4 to rotate through the rotary shaft 22, when the blind hole 5 rotates to the position below the hopper 6, one table tennis ball 7 in the hopper 6 falls into the blind hole 5, the rotary table 4 continues to rotate, the table tennis ball 7 cannot be separated from the blind hole 5 through the blocking and supporting of the arc-shaped plate 14 until the blind hole 5 rotates to the opening 3 at the upper end of the shell 1, and the table tennis ball 7 in the blind hole 5 falls downwards onto the backing plate 8 through the opening 3 and then rolls backwards along the upper end surface of the backing plate 8 and is contacted with the back inner side surface of the shell 1; the turntable 4 rotates to drive the slider 9 to move left and right through the connecting rod 18, when the slider 9 moves right, the spring pushes the push plate 10 to move right, when the push plate 10 is in contact with the stopper 11, the push plate is blocked by the stopper 11, the slider 9 continues to move right to compress the spring, the spring force is increased until the push plate 10 is pushed to squeeze the left inclined plane of the stopper 11 right, the stopper 11 compresses the spring and enters the groove 21, the push plate 10 loses the blocking of the stopper 11 and quickly beats the table tennis ball 7 right under the elastic force of the left spring, the table tennis ball 7 enters the circular arc track 12 along the rear inner side surface of the straight track 2, the table tennis ball 7 keeps in contact with the rubber layer 23 on the rear inner side surface of the circular arc track 12 due to small difference, and the table tennis ball 7 rotates due to the friction force between the table tennis ball 7 and the rubber layer 23; in the process of the rotation of the table tennis 7, the kinetic energy of the table tennis 7 moving along the track is gradually converted into the kinetic energy of the rotation of the table tennis 7, so that the kinetic energy of the table tennis 7 moving along the track is gradually reduced, and the kinetic energy of the rotation of the table tennis 7 is gradually increased; when the table tennis 7 is separated from the circular arc track 12, the table tennis 7 falls on the water surface in the water pool 13, and the table tennis 7 continues to rotate;
because the table tennis 7 moves along the tangential direction of the tail end of the circular arc track 12 when being separated from the circular arc track 12, the table tennis 7 which is relatively uneven can deviate from the tangential direction when rotating on the water surface, and the more uneven the ball body is, the farther the table tennis 7 deviates, and the relatively even table tennis 7 can not deviate from the tangential direction too far when rotating on the water surface, the table tennis 7 in a certain range can be used for competition by observing the deviated position of the table tennis 7, and the relatively good distribution range of the table tennis 7 can be obtained by observing the summary rule; and the quality of the table tennis 7 is comprehensively judged by observing the rotation form of the table tennis 7 on the water surface, so that the detection of the table tennis 7 is completed.
After the push plate 10 crosses the stop block 11 from left to right to hit the table tennis ball 7 out, the rotating disc 4 continues to rotate, the blind hole 5 gradually rotates to the lower part of the hopper 6, and one table tennis ball 7 in the hopper 6 falls into the blind hole 5; the turntable 4 continues to rotate, the connecting rod 18 drives the sliding block 9 to move leftwards, the spring pulls the push plate 10 to move leftwards, when the push plate 10 is in contact with the stop block 11, the stop block 11 blocks the push plate, the sliding block 9 continues to move leftwards to extend the spring, the spring power is increased until the push plate 10 is pulled to extrude the right inclined plane of the stop block 11 leftwards, the stop block 11 compresses the spring and enters the groove 21, and the push plate 10 loses the block of the stop block 11 and goes over the stop block 11 leftwards under the action of the tensile force of the left spring; the rotary table 4 continuously rotates, the sliding block 9 extrudes the spring rightwards again to store force, the table tennis balls 7 are hit rightwards through the push plate 10, and the process is circulated, so that the detection of the plurality of table tennis balls 7 is carried out.
The rotary table 4 is connected with the sliding block 9 through the connecting rod 18, so that table tennis balls 7 in the hopper 6 enter the straight track 2 one by one, the sliding block 9 pushes the spring to accumulate force, and the push plate 10 is pushed to hit the table tennis balls 7, so that the table tennis balls 7 enter the arc track 12 one by one for detection, and manual sorting and feeding one by one are not needed.
The invention is provided with the stop block 11, when the slide block 9 moves rightwards, the stop block 11 stops the push plate 10, so that the spring stores force until the stop block 11 is pushed to enter the groove 21, the push plate 10 quickly strikes the table tennis 7, the table tennis 7 is given larger kinetic energy, after the table tennis 7 enters the circular arc track 12, enough kinetic energy is maintained to rotate while the friction force is overcome, the table tennis 7 rotates on the water surface, the rotation of the table tennis 7 in the air is simulated, the interference of detecting the roughness and the flatness of the table top is eliminated as much as possible, and the detection result is more accurate.
The arc track 12 is arranged, the table tennis 7 enters the arc track 12, so that the kinetic energy of the table tennis 7 moving along the track is gradually reduced, the kinetic energy of the table tennis 7 rotating is gradually increased, the table tennis 7 falls on the water surface in the water pool 13 after separating from the arc track 12, and the table tennis 7 continuously keeps rotating, so that the detection is carried out; the detection of the table tennis balls 7 is completed by observing a summary rule by utilizing the principle that the uneven table tennis balls 7 can deviate to one side when rotating on the water surface, and the faster the table tennis balls 7 deviate as the balls are more uneven; the influence on detection caused by manual operation is avoided, the detection effect is good, and the efficiency is high.
Claims (7)
1. A table tennis detection device comprises a square shell (1) which is through from left to right, and is characterized in that a straight track (2) in the left-right direction is formed in the shell (1); an opening (3) is arranged above the shell (1), a turntable (4) is arranged above the opening (3), and a blind hole (5) is formed in the outer edge surface of the turntable (4); a sliding block (9) which is arranged at the left side of the opening (3) and can move left and right is arranged in the shell (1), a push plate (10) is arranged at the right side of the sliding block (9), and the sliding block (9) is connected with the push plate (10) through a spring; the front inner wall and the rear inner wall of the shell (1) are respectively provided with a stop block (11) arranged between the opening (3) and the slide block (9), the two stop blocks (11) can move back and forth, and when the push plate (10) moves left and right to cross the two stop blocks (11), the two stop blocks (11) form resistance to the push plate (10); an arc track (12) communicated with the straight track (2) is arranged at the right side of the shell (1), a water pool (13) is arranged at one end of the arc track (12),
a base plate (8) arranged below the opening (3) is arranged in the shell (1), the upper end surface of the base plate (8) inclines backwards and downwards, and the right end surface of the base plate (8) is flush with the right end surface of the shell (1);
grooves (21) arranged on the left side of the opening (3) are formed in the front inner wall and the rear inner wall of the shell (1), the stop blocks (11) are arranged in the grooves (21), and springs are arranged between the stop blocks (11) and the bottoms of the grooves (21); one end of the stop block (11) close to the middle of the shell (1) is a tip, and the left end surface and the right end surface of the stop block are inclined planes inclined towards the middle; when the spring is in the original length, one end of the inclined surface of the stop block (11) is arranged in the shell (1).
2. A table tennis ball detecting device according to claim 1, wherein a hopper (6) is arranged above the turntable (4), and a plurality of table tennis balls (7) are contained in the hopper (6); an arc-shaped plate (14) is coaxially arranged on the left side of the turntable (4), the upper end of the arc-shaped plate (14) is fixed on the hopper (6), and the lower end of the arc-shaped plate (14) is fixed on the straight track (2).
3. The table tennis detection device according to claim 1, wherein a front and a rear through grooves (15) are formed in the left side of the housing (1), a first hinge shaft (16) is fixed to the front end face of the slider (9), the first hinge shaft (16) is arranged in the through groove (15) on the corresponding side, a second hinge shaft (17) is fixed to the front side face of the turntable (4), the second hinge shaft (17) is not coaxial with the turntable (4), and the first hinge shaft (16) and the second hinge shaft (17) are hinged and connected through a connecting rod (18).
4. The table tennis detection device according to claim 1, wherein the slider (9) is provided with a guide hole (19) which is through from left to right, a guide rod (20) is fixed on the left side of the push plate (10), the guide rod (20) is arranged in the guide hole (19), and the spring is sleeved on the guide rod (20).
5. The table tennis detection device according to claim 1, wherein a rotating shaft (22) is fixed in the middle of the rear end face of the rotary plate (4), and a motor is connected to the rear end of the rotating shaft (22).
6. The table tennis detection device according to claim 1, wherein the vertical section of the circular arc track (12) is L-shaped, the inner bottom surface of the circular arc track (12) is flush with the inner bottom surface of the straight track (2), and the inner side surface of the circular arc track (12) is tangent to the rear inner side surface of the straight track (2).
7. The table tennis detection device according to claim 1, wherein a rubber layer (23) is fixed on the rear inner side surface of the straight track (2) and the inner side surface of the circular arc track (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210197123.3A CN114534209B (en) | 2022-03-02 | 2022-03-02 | Table tennis detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210197123.3A CN114534209B (en) | 2022-03-02 | 2022-03-02 | Table tennis detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114534209A CN114534209A (en) | 2022-05-27 |
| CN114534209B true CN114534209B (en) | 2023-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210197123.3A Active CN114534209B (en) | 2022-03-02 | 2022-03-02 | Table tennis detection device |
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| CN (1) | CN114534209B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0503176A1 (en) * | 1991-03-12 | 1992-09-16 | Lien Polymer Enterprise Co. Ltd. | A ping-pong ball shooter |
| JP2007259901A (en) * | 2006-03-27 | 2007-10-11 | Meng-Fu Chen | Table tennis ball shooting apparatus |
| CN106500935B (en) * | 2016-09-23 | 2018-11-23 | 天津大学 | A kind of seamless table tennis anti-pumping performance detection method for separating |
| CN108187329B (en) * | 2017-12-28 | 2019-08-13 | 温州益蓉机械有限公司 | A kind of athletic training table tennis ball serving equipment |
| CN108355337A (en) * | 2018-03-30 | 2018-08-03 | 浙江斯博科体育用品有限公司 | A kind of ball feeding device of table tenning ball servicing machine |
| CN108992901B (en) * | 2018-07-26 | 2020-09-11 | 瑞安市众人体育培训有限公司 | Table tennis serving device for physical training |
| CN209596534U (en) * | 2019-01-09 | 2019-11-08 | 兰州石化职业技术学院 | A kind of table tennis is practised a ball game machine |
| CN209771244U (en) * | 2019-03-14 | 2019-12-13 | 江西制造职业技术学院 | Table tennis elasticity detector |
| CN113786594A (en) * | 2021-08-27 | 2021-12-14 | 海南翔睿德科技有限公司 | Automatic ball-serving speed detection system of table tennis service robot |
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2022
- 2022-03-02 CN CN202210197123.3A patent/CN114534209B/en active Active
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