CN112354162A

CN112354162A - External ball-falling table tennis ball supply and swing speed monitoring device

Info

Publication number: CN112354162A
Application number: CN202011276801.2A
Authority: CN
Inventors: 葛冰; 张国庆; 赵海权; 郭长忱; 曲飞
Original assignee: Jilin Normal University
Current assignee: Jilin Normal University
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-02-12
Anticipated expiration: 2040-11-16
Also published as: CN112354162B

Abstract

The invention relates to the field of table tennis training devices, in particular to an external lower ball type table tennis ball supply and swing speed monitoring device which comprises a support frame, wherein a support table is fixedly arranged on the front end face of the support frame, a support column is arranged on the upper end face of the support table, a clamped ball movably embedded into the upper end face of the support table extends out of the lower end face of the support table, two infrared transmitters are arranged on the upper end face of the support table close to the periphery of the support column, a limit rod extends out of the lower end face of the clamped ball, a reset soft ring is fixedly clamped on the inner side of the support table corresponding to the periphery of the limit rod, a connecting shell is fixedly connected to the upper end of the clamped ball, a magnet block is arranged on the inner side of the connecting shell, and a support plate extending towards the front is fixedly connected to the upper end of the support, to test swing speeds for different shot types.

Description

External ball-falling table tennis ball supply and swing speed monitoring device

Technical Field

The invention relates to the field of table tennis training devices, in particular to an external ball-dropping table tennis ball feeding and swing speed monitoring device.

Background

Ball formula table tennis confession ball under outside and wave bat speed monitoring devices tests through the test ball that hangs, wave the in-process that the bat struck the test ball at the sportsman, monitor the racket by two infrared emitter, the racket is through the time end of two infrared emitter except that the interval between two infrared emitter is for waving bat speed promptly, but among the prior art, wave the average level of bat monitoring sportsman many times in the test, but the spheroid is difficult to reset after the striking, the indefinite phenomenon of swing often appears, influence continuous test, and simultaneously, because the effect of dragging of stay cord, the motion trail of sportsman batting ball can't be observed, consequently, the bat speed of carrying out the different grade type batting that can't be directed to monitors.

Disclosure of Invention

The invention aims to solve the defects in the background technology and provides an external ball-falling type table tennis ball feeding and swing speed monitoring device.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: the external lower ball type table tennis ball supply and swing speed monitoring device comprises a support frame, wherein a support table is fixedly installed on the front end face of the support frame, a support column is arranged on the upper end face of the support table, a card-in ball movably embedded into the upper end face of the support table extends out of the lower end face of the support table, two infrared transmitters are arranged on the upper end face of the support table close to the periphery of the support column, a limiting rod extends out of the lower end face of the card-in ball, a reset soft ring is clamped into the inner side of the support table corresponding to the periphery of the limiting rod, a connecting shell is fixedly connected to the upper end of the card-in ball, a magnet block is arranged on the inner side of the connecting shell, a support plate extending towards the front is fixedly connected to the upper end face of the support plate, a bayonet is arranged on the upper end face of the, the lower extreme of stay cord is connected with the test ball that is located the joint housing top, the inboard of test ball is provided with the magnet ball that attracts mutually with the magnet piece, the stay cord passes the fixed cover of the inboard position of bayonet socket and is equipped with spacing post, the upper and lower end of spacing post extends the spacing dish of card upper and lower extreme at the bayonet socket, is located the top the border of spacing dish has seted up the slope limit, the lower terminal surface of backup pad is provided with the locking mechanism who is used for locking the spacing dish that is located the below.

Preferably, the inner side of the resetting soft ring is provided with a movable cavity, the cross section of the movable cavity is in a diamond shape, and the resetting soft ring is made of rubber.

Preferably, the lower end of the support frame is fixedly provided with a bottom frame, the lower end face of the bottom frame is movably provided with a roller, the rear end face of the support frame is fixedly provided with an inclined plate, and the height of the upper end edge of the inclined plate along the horizontal plane is not more than that of the upper end face of the support table.

Preferably, the lower end face of the supporting plate, the front end face of the supporting frame and the upper end face of the supporting table are connected with reinforcing plates which are concave in shape, and the reinforcing plates are symmetrically arranged on the edges of the two sides of the supporting frame.

Preferably, the winding mechanism comprises a motor fixedly mounted on the upper end surface of the support plate close to the front end and a winding wheel connected to the driving end of the motor and used for winding the pull rope, a guide wheel mechanism used for guiding the pull rope is mounted on the upper end surface of the support plate close to the front end of the bayonet, and a matching notch is formed in the upper end surface of the support plate corresponding to the lower portion of the winding wheel.

Preferably, the guide wheel mechanism comprises an L-shaped frame fixedly mounted on the upper end face of the supporting plate, and a guide wheel rotatably mounted at the rear end of the L-shaped frame, the pull rope spans over the upper end face of the guide wheel, a limit frame is arranged above the guide wheel, and two lower ends of the limit frame are connected to the outer surfaces of two sides of the L-shaped frame.

Preferably, locking mechanism is including setting up the stopper of terminal surface under the backup pad, the stopper is pressed terminal surface under the spacing dish, the lower terminal surface of stopper runs through and is provided with the threaded rod, just the upper end of threaded rod and the lower terminal surface fixed connection of backup pad, the threaded rod cover is equipped with looks screw-thread fit's lock nut, lock nut supports the lower terminal surface at the stopper.

Preferably, the supporting table is provided with a cutting port at the upper end corresponding to the embedded position of the clamped ball, and the two infrared emitters are respectively arranged right in front of and right behind the clamped ball.

Compared with the prior art, the invention has the following beneficial effects:

1. the swing speed monitoring device has the main beneficial effects that the test ball can be hit out in the process of hitting the test ball by swing, the limiting column is prevented from being separated from the front end of the bayonet under the action of the locking mechanism, so that the test ball cannot be hit to fly too far, the magnet ball can be quickly reset under the mutual attraction of the magnet block and the magnet ball, after the locking mechanism is released, the limiting column can be separated from the inner side of the bayonet when the test ball is hit, the track of the ball can be observed at the moment, the hitting type can be judged, the swing speed can be monitored, the test ball can be quickly reset, the continuous monitoring process can be facilitated, the hitting track can be monitored, and the swing speed is more comprehensive.

2. After the test ball was hit out when the orbit was observed, rotate by motor drive rolling wheel, pack up the stay cord, the spacing dish that is located the top is owing to the slope limit of seting up, can be so that the in-process of lifting moves backward slightly, because the power of dragging is to the preceding top, consequently can antedisplacement once more after moving backward slightly, make spacing post card go into the inboard of bayonet socket, block under the effect of spacing dish from top to bottom, the reset of test ball can be accomplished to motor stall, consequently, still possess the function of quick reset test ball among the batting orbit test process, the effect is comprehensive.

3. At the in-process of waving the bat, probably there is the phenomenon of scraping and bumping the connection shell, and the support column uses the card ball of going into to rotate as the extreme point this moment, and the gag lever post also can rotate in step to the extrusion soft circle that resets, the effect of activity cavity can promote the deformation degree that resets soft circle, prevents when the shell is connected in the racket striking, causes the damage of racket or connection shell structure, does benefit to going on of test procedure.

4. The limiting block can be rotated by screwing down the locking nut in the further improvement scheme, so that the limiting block is not pressed against the limiting disc any more, the testing state of the batting track can be observed at the moment, the limiting block is rotated back, the limiting column can be locked again after the locking nut is screwed, the test ball cannot fly far during batting testing, and the rapid implementation of multiple groups of tests is facilitated.

Drawings

FIG. 1 is a schematic structural view of an external lower ball type table tennis ball feeding and swing speed monitoring device according to the present invention;

FIG. 2 is a sectional view of the supporting table and the supporting plate of the external putting type table tennis ball feeding and swing speed monitoring device of the present invention;

FIG. 3 is an enlarged view of the portion A in FIG. 2 of the external putting type table tennis ball feeding and swing speed monitoring device according to the present invention;

FIG. 4 is a cross-sectional view of a test ball and a connecting shell of the external lower ball type table tennis ball feeding and swing speed monitoring device of the present invention;

FIG. 5 is an enlarged view of the external lower ball type table tennis ball feed and swing speed monitoring device of the present invention at point B in FIG. 2;

FIG. 6 is a schematic view of another perspective structure of the external lower ball type table tennis ball feeding and swing speed monitoring device according to the present invention;

fig. 7 is a schematic structural view of a locking mechanism of the external dropping-ball type table tennis ball feeding and swing speed monitoring device of the invention.

In the figure: 1. a support frame; 2. a support table; 3. an infrared emitter; 4. a support pillar; 5. a connecting shell; 6. clamping the ball; 7. a limiting rod; 8. resetting the soft ring; 9. a movable cavity; 10. cutting a port; 11. a support plate; 12. a motor; 13. a winding wheel; 14. a guide wheel; 15. an L-shaped frame; 16. a limiting frame; 17. pulling a rope; 18. a limiting column; 19. a limiting disc; 20. an inclined edge; 21. a bayonet; 22. testing the ball; 23. a magnet ball; 24. a magnet block; 25. a limiting block; 26. a threaded rod; 27. locking the nut; 28. a matching notch; 29. a reinforcing plate; 30. a chassis; 31. a roller; 32. a sloping plate.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

An external ball-dropping type table tennis ball feeding and swing speed monitoring device as shown in fig. 1-7 comprises a support frame 1, a support table 2 is fixedly installed on the front end face of the support frame 1, a support column 4 is arranged on the upper end face of the support table 2, a clamped ball 6 movably embedded in the upper end face of the support table 2 extends from the lower end face of the support table 4, two infrared emitters 3 are arranged on the upper end face of the support table 2 near the periphery of the support column 4, a limit rod 7 extends from the lower end face of the clamped ball 6, a reset soft ring 8 is fixedly clamped on the inner side of the support table 2 corresponding to the periphery of the limit rod 7, a connecting shell 5 is fixedly connected to the upper end of the clamped ball 6, a magnet block 24 is arranged on the inner side of the connecting shell 5, a support plate 11 extending towards the front is fixedly connected to the upper end face of the support frame 1, a bayonet 21 is arranged on the upper end, the lower extreme of stay cord 17 is connected with the test ball 22 that is located the connecting shell 5 top, and the inboard of test ball 22 is provided with magnet ball 23 with magnet piece 24 looks attraction, and stay cord 17 passes the fixed cover of the inboard position of bayonet 21 and is equipped with spacing post 18, and the upper and lower end of spacing post 18 extends the spacing dish 19 of card upper and lower extreme on bayonet 21, and the border that is located spacing dish 19 in top has seted up the slope limit 20, and the lower terminal surface of backup pad 11 is provided with the locking mechanism who is used for locking spacing dish 19 that is located the below.

The movable cavity 9 is arranged on the inner side of the resetting soft ring 8, the section of the movable cavity 9 is in a diamond shape, the resetting soft ring 8 is made of rubber, and the diamond-shaped movable cavity 9 can be extruded from the directions of two sides.

The lower extreme fixed mounting of support frame 1 has chassis 30, and the lower terminal surface movable mounting of chassis 30 has gyro wheel 31, and the rear end face fixed mounting of support frame 1 has swash plate 32, and the height of the up end of propping up a supporting bench 2 is not more than to the height of the up end of upper end border horizontal plane through swash plate 32, and the in-process that test ball 22 hit after flying back and fall can fall on swash plate 32, and is more gentle when packing up.

The lower end face of the supporting plate 11, the front end face of the supporting frame 1 and the upper end face of the supporting table 2 are connected with a reinforcing plate 29 which is concave in shape, and the reinforcing plate 29 is symmetrically arranged on the two side edges of the supporting frame 1, so that the structural strength is further improved.

The winding mechanism comprises a motor 12 fixedly mounted on the upper end face of the supporting plate 11 close to the front end and a winding wheel 13 connected to the driving end of the motor 12 and used for winding the pull rope 17, a guide wheel mechanism used for guiding the pull rope 17 is mounted on the upper end face of the supporting plate 11 close to the front end of the bayonet 21, a matching notch 28 is formed in the upper end face of the supporting plate 11 and corresponds to the lower portion of the winding wheel 13, the motor 12 adopts a servo motor, and the winding process is flexibly controlled to be carried out and stopped.

The guide wheel mechanism comprises an L-shaped frame 15 fixedly installed on the upper end face of the supporting plate 11 and a guide wheel 14 rotatably installed at the rear end of the L-shaped frame 15, a pull rope 17 spans the upper end face of the guide wheel 14, a limiting frame 16 is arranged above the guide wheel 14, two lower ends of the limiting frame 16 are connected to the outer surfaces of two sides of the L-shaped frame 15, and the pull rope 17 is prevented from separating from the surface of the guide wheel 14 in the process of flying out of the test ball 22.

Locking mechanism is including setting up stopper 25 at backup pad 11 lower terminal surface, and stopper 25 presses terminal surface under spacing dish 19, and stopper 25's lower terminal surface runs through and is provided with threaded rod 26, and the lower terminal surface fixed connection of the upper end of threaded rod 26 and backup pad 11, and threaded rod 26 cover is equipped with looks screw-thread fit's lock nut 27, and lock nut 27 supports the lower terminal surface at stopper 25, can adjust the state of test in a flexible way to carry out quick multiunit and wave to clap test or the nimble adjustment of trail observation.

Supporting bench 2 corresponds the upper end of card income ball 6 embedding position and has seted up cutting port 10, and two infrared emitter 3 set up in the dead ahead and dead behind of card income ball 6 respectively, wave to clap and move upward with the front and back mostly and hit test ball 22, and consequently this arrangement has promoted accurate degree.

In the process of striking the test ball 22 by swinging, the test ball 22 is struck, under the action of the locking mechanism, the limit column 18 is prevented from being separated from the front end of the bayonet 21, so that the test ball 22 cannot be struck to fly too far, the magnet ball 23 can be quickly reset under the mutual attraction of the magnet block 24 and the magnet ball 23, the limit block 25 can be rotated by screwing down the locking nut 27 to prevent the limit block from pressing the limit disc 19, at the moment, the test state of the striking track can be observed, the limit column 18 can be locked again after the limit block 25 is rotated back and the locking nut 27 is screwed, the test ball 22 cannot fly too far during the striking test, the quick performance of multiple groups of tests is facilitated, the limit column 18 can be separated from the inner side of the bayonet 21 when the test ball 22 is struck, the striking track can be observed at the moment, the striking type is judged, after the test ball 22 is struck during the track observation, the motor 12 drives the winding wheel 13 to rotate, the pull rope 17 is wound up, the limiting disc 19 positioned above can slightly move backwards in the lifting process due to the inclined edge 20, the limiting column 18 can be clamped into the inner side of the bayonet 21 and clamped under the action of the upper and lower limiting discs 19 due to the fact that the pulling force is towards the front upper side and can move forwards again after slightly moving backwards, the testing ball 22 can be reset after the motor 12 stops running, the testing ball 22 can still have the function of quickly resetting in the batting track testing process, the effect is comprehensive, the phenomenon of scratching and hitting the connecting shell 5 can exist in the process of waving, at the moment, the supporting column 4 rotates by taking the clamped ball 6 as an end point, the limiting rod 7 can synchronously rotate and extrude the resetting soft ring 8, the deformation degree of the resetting soft ring 8 can be improved due to the effect of the movable cavity 9, and when the racket impacts the connecting shell 5, the damage of the racket or the connecting shell 5 structure is caused, the testing process is facilitated, the speed of the racket is monitored, meanwhile, the testing ball 22 can be quickly reset, the continuous monitoring process is facilitated, and meanwhile, the hitting track can be monitored more comprehensively.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Ball formula table tennis supplies ball and wave bat speed monitoring devices under outside, including support frame (1), its characterized in that: a supporting table (2) is fixedly mounted on the front end face of the supporting frame (1), a supporting column (4) is arranged on the upper end face of the supporting table (2), the lower end of the supporting column (4) extends to movably insert a card into the ball (6) embedded in the upper end face of the supporting table (2), two infrared transmitters (3) are arranged on the periphery of the supporting table (2) close to the supporting column (4), a limiting rod (7) extends from the lower end face of the card into the ball (6), a reset soft ring (8) is clamped into the periphery of the supporting table (2) corresponding to the limiting rod (7), a connecting shell (5) is fixedly connected to the upper end of the card into the ball (6), a magnet block (24) is arranged on the inner side of the connecting shell (5), a supporting plate (11) extending towards the front is fixedly connected to the upper end face of the supporting frame (1), and a bayonet (21) is arranged on, the utility model discloses a spacing fixed disk (19) of card mouth (21) upper end extend card in bayonet socket (21) lower extreme, the place ahead that the up end of backup pad (11) is close to bayonet socket (21) is transferred through winding mechanism and is passed through inboard stay cord (17) of bayonet socket (21), the lower extreme of stay cord (17) is connected with test ball (22) that are located connecting shell (5) top, the inboard of test ball (22) is provided with magnet ball (23) that attract mutually with magnet piece (24), fixed cover in the position that bayonet socket (21) are passed in stay cord (17) is equipped with spacing post (18), spacing disk (19) of lower extreme on bayonet socket (21) are extended to the upper and lower end of spacing post (18), are located the top slope limit (20) have been seted up at the border of spacing disk (19), the lower terminal surface of backup pad (11.

2. The external pitching table tennis ball feeding and swing speed monitoring device according to claim 1, wherein: the inner side of the resetting soft ring (8) is provided with a movable cavity (9), the cross section of the movable cavity (9) is in a diamond shape, and the resetting soft ring (8) is made of rubber.

3. The external pitching table tennis ball feeding and swing speed monitoring device according to claim 1, wherein: the lower extreme fixed mounting of support frame (1) has chassis (30), the lower terminal surface movable mounting of chassis (30) has gyro wheel (31), the rear end face fixed mounting of support frame (1) has swash plate (32), process the height of the up end border horizontal plane of swash plate (32) is no longer than the height of the up end of brace table (2).

4. The external pitching table tennis ball feeding and swing speed monitoring device according to claim 1, wherein: the supporting plate is characterized in that a reinforcing plate (29) which is concave in shape is connected between the lower end face of the supporting plate (11), the front end face of the supporting frame (1) and the upper end face of the supporting table (2), and the reinforcing plate (29) is symmetrically arranged on the two side edges of the supporting frame (1).

5. The external pitching table tennis ball feeding and swing speed monitoring device according to claim 1, wherein: the winding mechanism comprises a motor (12) fixedly mounted on the upper end face of the supporting plate (11) close to the front end and a winding wheel (13) connected to the driving end of the motor (12) and used for winding the pull rope (17), a guide wheel mechanism used for guiding the pull rope (17) is mounted on the upper end face of the supporting plate (11) close to the front end of the bayonet (21), and a matching notch (28) is formed in the upper end face of the supporting plate (11) and below the winding wheel (13).

6. The external pitching table tennis ball feeding and swing speed monitoring device according to claim 1, wherein: the guide wheel mechanism comprises an L-shaped frame (15) fixedly mounted on the upper end face of the supporting plate (11) and a guide wheel (14) rotatably mounted at the rear end of the L-shaped frame (15), the pull rope (17) spans over the upper end face of the guide wheel (14), a limiting frame (16) is arranged above the guide wheel (14), and two lower ends of the limiting frame (16) are connected to the outer surfaces of the two sides of the L-shaped frame (15).

7. The external pitching table tennis ball feeding and swing speed monitoring device according to claim 1, wherein: locking mechanism is including setting up stopper (25) of terminal surface under backup pad (11), stopper (25) press terminal surface under spacing dish (19), the lower terminal surface of stopper (25) runs through and is provided with threaded rod (26), just the upper end of threaded rod (26) and the lower terminal surface fixed connection of backup pad (11), threaded rod (26) cover is equipped with looks screw-thread fit's lock nut (27), lock nut (27) support the lower terminal surface at stopper (25).

8. The external pitching table tennis ball feeding and swing speed monitoring device according to claim 1, wherein: the upper end of the support table (2) corresponding to the embedded position of the clamped ball (6) is provided with a cutting port (10), and the two infrared transmitters (3) are arranged right in front of and right behind the clamped ball (6) respectively.