Table tennis ball serving device for sports training

[0022] Example 1

[0023] A table tennis ball serving device for sports training, such as Figure 1-5 As shown, it includes a base 1, an annular slider 3, a leg 4, a u-shaped frame 5, a first cylinder 6, a first slider 8, a push plate 9, a hopper 10, a first spring 12, and a rack 13. Vertical rod 14, placing frame 15, connecting rod 16, second cylinder 17, turntable 18, lower hopper 19, first bearing seat 21, first rotating shaft 22, double groove pulley 23, driving motor 24, first flat The belt 25, the frame 26, the baffle 28, the support rod 29, the second bearing seat 30, the second rotating shaft 31, the first pulley 32 and the sector gear 33, the top of the base 1 has an annular slide groove 2 in the middle, and an annular slide groove 2 There are two ring sliders 3 inside. Legs 4 are installed at the top of the ring sliders 3 on the left and right sides. A u-shaped frame 5 is installed between the top ends of the left and right legs 4, and the top of the u-shaped frame 5 A first cylinder 6 is installed in the middle, and the first cylinder 6 is arranged obliquely. The first cylinder 6 is provided with a first sliding groove 7 on the left side of the bottom of the first cylinder 6. A push plate 9 is installed on the top of the slider 8. The push plate 9 is located in the first cylinder 6. A first spring 12 is connected between the left side of the push plate 9 and the inner left side of the first cylinder 6. The first slider 8 A rack 13 is installed at the bottom, a support rod 29 is installed on the left side of the inner bottom of the u-shaped frame 5, a second bearing seat 30 is installed on the top of the support rod 29, and a second rotating shaft 31 is installed in the second bearing seat 30. A first belt pulley 32 is installed in the middle of 31, a sector gear 33 is installed at the front end of the second rotating shaft 31, and the sector gear 33 is located below the rack 13 to mesh with it. A through hole 11 is opened on the left side of the top of the first cylinder 6 and the first cylinder 6. A feed hopper 10 is installed on the right side of the top, and the feed hopper 10 is connected to the inside of the first cylinder 6. A vertical rod 14 is installed on the left side of the outer top of the first cylinder 6, and a placing frame 15 is installed at the top of the vertical rod 14. 15 is connected to the right side of the bottom with a lower hopper 19, the lower hopper 19 is connected to the inside of the placing frame 15, the bottom of the lower hopper 19 is connected with a second cylinder 17, the outer right side of the second cylinder 17 and the outer right of the placing frame 15 A connecting rod 16 is installed between the upper part of the surface, the bottom of the second cylinder 17 is connected with a frame 26 in the middle, and the frame 26 communicates with the second cylinder 17, and the lower left side of the frame 26 is provided with a discharge port 27 for discharging The port 27 is located at the upper right of the feeding hopper 10, and a baffle 28 is installed at the lower part of the left side outside the frame 26. The baffle 28 is located above the feeding hopper 10. The second cylinder 17 is embedded with a A bearing seat 21. A first rotating shaft 22 is connected between the first bearing seats 21 on the front and rear sides. A turntable 18 is installed in the middle of the first rotating shaft 22. Four grooves 20 are installed on the outer side of the rotating disk 18 at even intervals. A double-groove pulley 23 is installed at the rear of the rotating shaft 22, a first flat belt 25 is wound between the double-groove pulley 23 and the first pulley 32, and a driving motor 24 is installed at the center of the outer and rear side of the second cylinder body 17. The output shaft is connected to the rear end of the first rotating shaft 22 through a coupling.

[0024] Example 2

[0025] A table tennis ball serving device for sports training, such as Figure 1-5 As shown, it includes a base 1, an annular slider 3, a leg 4, a u-shaped frame 5, a first cylinder 6, a first slider 8, a push plate 9, a hopper 10, a first spring 12, and a rack 13. Vertical rod 14, placing frame 15, connecting rod 16, second cylinder 17, turntable 18, lower hopper 19, first bearing seat 21, first rotating shaft 22, double groove pulley 23, driving motor 24, first flat The belt 25, the frame 26, the baffle 28, the support rod 29, the second bearing seat 30, the second rotating shaft 31, the first pulley 32 and the sector gear 33, the top of the base 1 has an annular slide groove 2 in the middle, and an annular slide groove 2 There are two ring sliders 3 inside. Legs 4 are installed at the top of the ring sliders 3 on the left and right sides. A u-shaped frame 5 is installed between the top ends of the left and right legs 4, and the top of the u-shaped frame 5 A first cylinder 6 is installed in the middle, and the first cylinder 6 is arranged obliquely. The first cylinder 6 is provided with a first sliding groove 7 on the left side of the bottom of the first cylinder 6. A push plate 9 is installed on the top of the slider 8. The push plate 9 is located in the first cylinder 6. A first spring 12 is connected between the left side of the push plate 9 and the inner left side of the first cylinder 6. The first slider 8 A rack 13 is installed at the bottom, a support rod 29 is installed on the left side of the inner bottom of the u-shaped frame 5, a second bearing seat 30 is installed on the top of the support rod 29, and a second rotating shaft 31 is installed in the second bearing seat 30. A first belt pulley 32 is installed in the middle of 31, a sector gear 33 is installed at the front end of the second rotating shaft 31, and the sector gear 33 is located below the rack 13 to mesh with it. A through hole 11 is opened on the left side of the top of the first cylinder 6 and the first cylinder 6. A feed hopper 10 is installed on the right side of the top, and the feed hopper 10 is connected to the inside of the first cylinder 6. A vertical rod 14 is installed on the left side of the outer top of the first cylinder 6, and a placing frame 15 is installed at the top of the vertical rod 14. 15 is connected to the right side of the bottom with a lower hopper 19, the lower hopper 19 is connected to the inside of the placing frame 15, the bottom of the lower hopper 19 is connected with a second cylinder 17, the outer right side of the second cylinder 17 and the outer right of the placing frame 15 A connecting rod 16 is installed between the upper part of the surface, the bottom of the second cylinder 17 is connected with a frame 26 in the middle, and the frame 26 communicates with the second cylinder 17, and the lower left side of the frame 26 is provided with a discharge port 27 for discharging The port 27 is located at the upper right of the feeding hopper 10, and a baffle 28 is installed at the lower part of the left side outside the frame 26. The baffle 28 is located above the feeding hopper 10. The second cylinder 17 is embedded with a A bearing seat 21. A first rotating shaft 22 is connected between the first bearing seats 21 on the front and rear sides. A turntable 18 is installed in the middle of the first rotating shaft 22. Four grooves 20 are installed on the outer side of the rotating disk 18 at even intervals. A double-groove pulley 23 is installed at the rear of the rotating shaft 22, a first flat belt 25 is wound between the double-groove pulley 23 and the first pulley 32, and a driving motor 24 is installed at the center of the outer and rear side of the second cylinder body 17. The output shaft is connected to the rear end of the first rotating shaft 22 through a coupling.

[0026] It also includes a ball pushing device 34. The ball pushing device 34 includes an L-shaped rod 341, a cross bar 342, a contact plate 343, a guide rod 345, a second spring 346, and a movable plate 347. The left side of the push plate 9 is provided with an L Type rod 341, L-shaped rod 341 is equipped with a crossbar 342 on the upper left side, the crossbar 342 is located on the rear side of the frame 26, the right end of the crossbar 342 is installed with a contact plate 343, and the lower right side of the frame 26 is provided with a first guide Hole 344, the first guide hole 344 is provided with a guide rod 345, the guide rod 345 is located on the left side of the contact plate 343, the left end of the guide rod 345 is equipped with a movable plate 347, the movable plate 347 is located on the right side of the discharge port 27, and the guide rod 345 A second spring 346 is connected between the right side surface and the outer right side surface of the frame 26, and the second spring 346 is sleeved on the guide rod 345.

[0027] Example 3

[0028] A table tennis ball serving device for sports training, such as Figure 1-5 As shown, it includes a base 1, an annular slider 3, a leg 4, a u-shaped frame 5, a first cylinder 6, a first slider 8, a push plate 9, a hopper 10, a first spring 12, and a rack 13. Vertical rod 14, placing frame 15, connecting rod 16, second cylinder 17, turntable 18, lower hopper 19, first bearing seat 21, first rotating shaft 22, double groove pulley 23, driving motor 24, first flat The belt 25, the frame 26, the baffle 28, the support rod 29, the second bearing seat 30, the second rotating shaft 31, the first pulley 32 and the sector gear 33, the top of the base 1 has an annular slide groove 2 in the middle, and an annular slide groove 2 There are two ring sliders 3 inside. Legs 4 are installed at the top of the ring sliders 3 on the left and right sides. A u-shaped frame 5 is installed between the top ends of the left and right legs 4, and the top of the u-shaped frame 5 A first cylinder 6 is installed in the middle, and the first cylinder 6 is arranged obliquely. The first cylinder 6 is provided with a first sliding groove 7 on the left side of the bottom of the first cylinder 6. A push plate 9 is installed on the top of the slider 8. The push plate 9 is located in the first cylinder 6. A first spring 12 is connected between the left side of the push plate 9 and the inner left side of the first cylinder 6. The first slider 8 A rack 13 is installed at the bottom, a support rod 29 is installed on the left side of the inner bottom of the u-shaped frame 5, a second bearing seat 30 is installed on the top of the support rod 29, and a second rotating shaft 31 is installed in the second bearing seat 30. A first belt pulley 32 is installed in the middle of 31, a sector gear 33 is installed at the front end of the second rotating shaft 31, and the sector gear 33 is located below the rack 13 to mesh with it. A through hole 11 is opened on the left side of the top of the first cylinder 6 and the first cylinder 6. A feed hopper 10 is installed on the right side of the top, and the feed hopper 10 is connected to the inside of the first cylinder 6. A vertical rod 14 is installed on the left side of the outer top of the first cylinder 6, and a placing frame 15 is installed at the top of the vertical rod 14. 15 is connected to the right side of the bottom with a lower hopper 19, the lower hopper 19 is connected to the inside of the placing frame 15, the bottom of the lower hopper 19 is connected with a second cylinder 17, the outer right side of the second cylinder 17 and the outer right of the placing frame 15 A connecting rod 16 is installed between the upper part of the surface, the bottom of the second cylinder 17 is connected with a frame 26 in the middle, and the frame 26 communicates with the second cylinder 17, and the lower left side of the frame 26 is provided with a discharge port 27 for discharging The port 27 is located at the upper right of the feeding hopper 10, and a baffle 28 is installed at the lower part of the left side outside the frame 26. The baffle 28 is located above the feeding hopper 10. The second cylinder 17 is embedded with a A bearing seat 21. A first rotating shaft 22 is connected between the first bearing seats 21 on the front and rear sides. A turntable 18 is installed in the middle of the first rotating shaft 22. Four grooves 20 are installed on the outer side of the rotating disk 18 at even intervals. A double-groove pulley 23 is installed at the rear of the rotating shaft 22, a first flat belt 25 is wound between the double-groove pulley 23 and the first pulley 32, and a driving motor 24 is installed at the center of the outer and rear side of the second cylinder body 17. The output shaft is connected to the rear end of the first rotating shaft 22 through a coupling.

[0029] It also includes a ball pushing device 34. The ball pushing device 34 includes an L-shaped rod 341, a cross bar 342, a contact plate 343, a guide rod 345, a second spring 346, and a movable plate 347. The left side of the push plate 9 is provided with an L Type rod 341, L-shaped rod 341 is equipped with a crossbar 342 on the upper left side, the crossbar 342 is located on the rear side of the frame 26, the right end of the crossbar 342 is installed with a contact plate 343, and the lower right side of the frame 26 is provided with a first guide Hole 344, the first guide hole 344 is provided with a guide rod 345, the guide rod 345 is located on the left side of the contact plate 343, the left end of the guide rod 345 is equipped with a movable plate 347, the movable plate 347 is located on the right side of the discharge port 27, and the guide rod 345 A second spring 346 is connected between the right side surface and the outer right side surface of the frame 26, and the second spring 346 is sleeved on the guide rod 345.

[0030] It also includes a beating device 35. The beating device 35 includes a support rod 351, a third rotating shaft 352, a second flat belt 353, a second pulley 354, a cam 355, an n-type frame 356, a movable rod 358, a ball 359, and a connecting plate 3510 And the third spring 3511, an n-shaped frame 356 is installed in the middle of the left side outside the lower hopper 19, the upper and lower sides of the n-shaped frame 356 are symmetrically opened with a second guide hole 357, and the second guide hole 357 is provided with a movable rod 358 A ball 359 is installed at the right end of the movable rod 358, a connecting plate 3510 is installed between the left ends of the upper and lower movable rods 358, and a third spring 3511 is connected between the right side of the connecting plate 3510 and the outer left side of the n-type frame 356. The three springs 3511 are sleeved on the movable rod 358. The upper right part of the vertical rod 14 is equipped with a supporting rod 351. The right end of the supporting rod 351 is mounted with a third rotating shaft 352 in a rotating manner. The middle of the third rotating shaft 352 is installed with a second pulley 354. A second flat belt 353 is wound between the pulley 354 and the double-groove pulley 23, a cam 355 is installed at the front end of the third rotating shaft 352, and the cam 355 is located on the left side of the connecting plate 3510 in contact with it.