CN209828198U - Random angle service robot for tennis training - Google Patents
Random angle service robot for tennis training Download PDFInfo
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- CN209828198U CN209828198U CN201920521660.2U CN201920521660U CN209828198U CN 209828198 U CN209828198 U CN 209828198U CN 201920521660 U CN201920521660 U CN 201920521660U CN 209828198 U CN209828198 U CN 209828198U
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Abstract
The utility model relates to a tennis ball dispenser especially relates to a tennis training is with random angle ball dispenser. The technical problem of the utility model is that: provides a random angle ball dispenser for tennis training, which can automatically dispense balls and has high randomness of ball dispensing angle. A random angle ball serving device for tennis training comprises a support frame, a semicircular plate, a pillar, a box body, a fixed rod, a lower ball tube and the like; the support frame top is equipped with the semicircle board, and the semicircle board top left and right sides all is equipped with the pillar, is equipped with the box between the left and right sides pillar. The utility model discloses it will act as go-between and roll up and emit through the drive mechanism cooperation second gear drive reel to reach to make the movable block move back and forth in the hollow tube through the cooperation with first spring and carry out the action of serve, the tennis is put into the box and is fallen down at random through the dead lever, and falls into in the hollow tube at random, has reached the effect of serve at random, thereby improves sportsman's training level, and need not just can train with other people's cooperation.
Description
Technical Field
The utility model relates to a tennis ball dispenser especially relates to a tennis training is with random angle ball dispenser.
Background
Tennis player is when training, often can not find the training opponent, perhaps opponent's strength is unequal with oneself, frequently pick up the ball, service, extravagant training time, be difficult to reach good training effect, also there is service equipment that can service automatically on the market at present, but the angle of ordinary service equipment service is more fixed, the position that the sportsman can judge the catching ball in advance, be difficult to improve sportsman's level, long-time training can let the sportsman feel boring, there is not the challenge, lead to training effect not good.
SUMMERY OF THE UTILITY MODEL
In order to overcome tennis player when the training, often can not find the training adversary, be difficult to reach good training effect, the angle of service equipment service on the present market is more fixed, is difficult to improve sportsman's horizontally shortcoming, the technical problem of the utility model is that: provides a random angle ball dispenser for tennis training, which can automatically dispense balls and has high randomness of ball dispensing angle.
A random angle ball serving device for tennis training comprises a support frame, a semicircular plate, supports, a box body, fixing rods, a ball dropping tube, a driving mechanism, hollow tubes, moving blocks, a stop block, a first spring, a second gear, a reel and a stay wire, wherein the semicircular plate is arranged at the top of the support frame, the supports are arranged on the left side and the right side of the top of the semicircular plate, the box body is arranged between the supports on the left side and the right side, a plurality of fixing rods are irregularly distributed in the box body, a plurality of ball dropping tubes are arranged at the bottom of the box body, a plurality of hollow tubes are uniformly arranged on the front side of the top of the semicircular plate and arranged in a fan shape, the front ends of the hollow tubes are slightly raised upwards, the bottom ends of the ball dropping tubes are connected with the tops of the hollow tubes, the ball dropping tubes are communicated with the hollow tubes, the moving blocks are, the positive rear side of a plurality of hollow tubes all is equipped with the second gear, and the second gear rotation type is installed at semicircle board top, and the second gear top is equipped with the reel, is equipped with the acting as go-between on the reel, and the tail end of acting as go-between passes the through-hole and is connected with the movable block rear side, and semicircle board top rear side is equipped with actuating mechanism, actuating mechanism and second gear cooperation.
Further explain, actuating mechanism is including motor, semi-gear, pivot, first gear, fan-shaped frame and arc rack, and the right-hand motor that is equipped with in semi-circular plate top rear side is connected with the semi-gear on the output shaft of motor, and the middle rotary type in semi-circular plate top rear side is equipped with the pivot, is equipped with first gear in the pivot, and first gear and semi-gear cooperation, first gear top are equipped with fan-shaped frame, and the fan-shaped outside of putting up is equipped with the arc rack, and the arc rack meshes with the second gear.
Further explaining, the box body is further provided with a sliding block, a transverse plate, a second spring, a connecting rod, an iron plate and an electromagnet, a plurality of sliding grooves are formed in the rear side wall of the box body, the sliding block is arranged in each sliding groove in a sliding mode, the transverse plate is arranged on the front side of the sliding block and located in the box body, the second spring is arranged between the bottom of the sliding groove and the bottom of the sliding block, the connecting rod is arranged on the rear side of the bottom of the sliding block, the iron plates are arranged at the bottoms of all the connecting rods, the iron plate and the connecting rod are located on.
Further explaining, still including sliding sleeve, slide bar, buffer spring and rubber piece, the semicircle shaped plate top rear side left is equipped with the sliding sleeve, and the sliding sleeve slidable formula is equipped with the slide bar, and the slide bar front end is equipped with the rubber piece, is equipped with buffer spring between rubber piece rear side and the sliding sleeve front side, and buffer spring overlaps in the slide bar outside.
The utility model has the advantages that: the utility model discloses it will act as go-between and roll up and emit through the drive mechanism cooperation second gear drive reel to reach to make the movable block move back and forth in the hollow tube through the cooperation with first spring and carry out the action of serve, the tennis is put into the box and is fallen down at random through the dead lever, and falls into in the hollow tube at random, has reached the effect of serve at random, thereby improves sportsman's training level, and need not just can train with other people's cooperation.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic diagram of a first partial top view structure according to the present invention.
Fig. 3 is a schematic diagram of a second partial top view structure according to the present invention.
In the figure: 1: support frame, 2: semicircular plate, 3: strut, 4: a box body, 5: fixing rod, 6: lower bulb, 8: drive mechanism, 81: motor, 82: half gear, 83: rotating shaft, 84: first gear, 85: sector frame, 86: arc rack, 9: hollow tube, 10: moving block, 11: stopper, 12: through hole, 13: first spring, 14: second gear, 15: reel, 16: stay wire, 17: chute, 18: slider, 19: transverse plate, 20: second spring, 21: connecting rod, 22: iron plate, 23: electromagnet, 24: sliding sleeve, 25: slide bar, 26: buffer spring, 27: a rubber block.
Detailed Description
The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which currently preferred embodiments of the invention are shown. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for completeness and fully convey the scope of the invention to the skilled person.
Example 1
A random angle ball serving device for tennis training is shown in figures 1-3 and comprises a support frame 1, a semicircular plate 2, a support post 3, a box body 4, a fixed rod 5, a ball dropping tube 6, a driving mechanism 8, hollow tubes 9, a movable block 10, a stop block 11, a first spring 13, a second gear 14, a reel 15 and a pull wire 16, wherein the semicircular plate 2 is arranged at the top of the support frame 1, the support frame 1 is connected with the semicircular plate 2 in a welding connection mode, the support post 3 is arranged on the left side and the right side of the top of the semicircular plate 2, the box body 4 is arranged between the support posts 3 on the left side and the right side, a plurality of fixed rods 5 are irregularly distributed in the box body 4, the box body 4 is connected with the fixed rod 5 in a welding connection mode, a plurality of ball dropping tubes 6 are arranged at the bottom of the box body 4, a plurality of hollow tubes 9 are uniformly arranged on the, lower bulb 6 bottom and the 9 top intermediate junctions of hollow tube, intercommunication in lower bulb 6 and the hollow tube 9, hollow tube 9 internal sliding type is equipped with movable block 10, the inside rear side of hollow tube 9 is equipped with dog 11, hollow tube 9 is connected with dog 11 through welded connection's mode, it has through-hole 12 to open in the middle of the dog 11, be equipped with first spring 13 between dog 11 front side and the movable block 10 rear side, the positive rear side of a plurality of hollow tubes 9 all is equipped with second gear 14, the 2 tops of semicircle board are installed to second gear 14 rotary type, second gear 14 top is equipped with reel 15, be equipped with acting as go-between 16 on the reel 15, the 16 tail end of acting as go-between passes through-hole 12 and is connected with the movable block 10 rear side, 2 tops rear sides of semicircle board are equipped with actuating mechanism 8, actuating mechanism 8.
Example 2
A random angle ball serving device for tennis training is shown in figures 1-3 and comprises a support frame 1, a semicircular plate 2, supports 3, a box body 4, fixing rods 5, a lower ball tube 6, a driving mechanism 8, hollow tubes 9, a moving block 10, a stop block 11, a first spring 13, a second gear 14, a reel 15 and a pull wire 16, wherein the semicircular plate 2 is arranged at the top of the support frame 1, the supports 3 are arranged on the left side and the right side of the top of the semicircular plate 2, the box body 4 is arranged between the supports 3 on the left side and the right side, the fixing rods 5 are irregularly distributed in the box body 4, the bottom of the box body 4 is provided with a plurality of lower ball tubes 6, the front side of the top of the semicircular plate 2 is uniformly provided with a plurality of hollow tubes 9, the hollow tubes 9 are arranged in a fan shape, the front ends of the hollow tubes 9 are slightly tilted upwards, the bottom ends of the lower ball tubes 6 are connected, the inside rear side of hollow tube 9 is equipped with dog 11, it has through-hole 12 to open in the middle of dog 11, be equipped with first spring 13 between 11 front sides of dog and the movable block 10 rear side, the positive rear side of a plurality of hollow tubes 9 all is equipped with second gear 14, 2 tops of semicircle board are installed to second gear 14 rotary type, second gear 14 tops are equipped with reel 15, be equipped with acting as go-between 16 on the reel 15, the 16 tail ends of acting as go-between pass through-hole 12 and be connected with the movable block 10 rear side, 2 top rear sides of semicircle board are equipped with actuating mechanism 8, actuating mechanism 8 cooperates with second gear 14.
Actuating mechanism 8 is including motor 81, half gear 82, pivot 83, first gear 84, fan-shaped frame 85 and arc rack 86, the right-hand motor 81 that is equipped with of 2 top rear sides of semicircle board, semicircle board 2 is connected with motor 81 through bolted connection's mode, be connected with half gear 82 on motor 81's the output shaft, the middle rotary type of 2 top rear sides of semicircle board is equipped with pivot 83, be equipped with first gear 84 on the pivot 83, first gear 84 and the cooperation of half gear 82, first gear 84 top is equipped with fan-shaped frame 85, first gear 84 is connected with fan-shaped frame 85 through welded connection's mode, the fan-shaped frame 85 outside is equipped with arc rack 86, arc rack 86 and the meshing of second gear 14.
Example 3
A random angle ball serving device for tennis training is shown in figures 1-3 and comprises a support frame 1, a semicircular plate 2, supports 3, a box body 4, fixing rods 5, a lower ball tube 6, a driving mechanism 8, hollow tubes 9, a moving block 10, a stop block 11, a first spring 13, a second gear 14, a reel 15 and a pull wire 16, wherein the semicircular plate 2 is arranged at the top of the support frame 1, the supports 3 are arranged on the left side and the right side of the top of the semicircular plate 2, the box body 4 is arranged between the supports 3 on the left side and the right side, the fixing rods 5 are irregularly distributed in the box body 4, the bottom of the box body 4 is provided with a plurality of lower ball tubes 6, the front side of the top of the semicircular plate 2 is uniformly provided with a plurality of hollow tubes 9, the hollow tubes 9 are arranged in a fan shape, the front ends of the hollow tubes 9 are slightly tilted upwards, the bottom ends of the lower ball tubes 6 are connected, the inside rear side of hollow tube 9 is equipped with dog 11, it has through-hole 12 to open in the middle of dog 11, be equipped with first spring 13 between 11 front sides of dog and the movable block 10 rear side, the positive rear side of a plurality of hollow tubes 9 all is equipped with second gear 14, 2 tops of semicircle board are installed to second gear 14 rotary type, second gear 14 tops are equipped with reel 15, be equipped with acting as go-between 16 on the reel 15, the 16 tail ends of acting as go-between pass through-hole 12 and be connected with the movable block 10 rear side, 2 top rear sides of semicircle board are equipped with actuating mechanism 8, actuating mechanism 8 cooperates with second gear 14.
Actuating mechanism 8 is including motor 81, half-gear 82, pivot 83, first gear 84, fan-shaped frame 85 and arc rack 86, the right-hand motor 81 that is equipped with of 2 top rear sides of semicircle board, be connected with half-gear 82 on motor 81's the output shaft, 2 top rear sides middle rotary type of semicircle board is equipped with pivot 83, be equipped with first gear 84 on the pivot 83, first gear 84 and the cooperation of half-gear 82, first gear 84 top is equipped with fan-shaped frame 85, the fan-shaped frame 85 outside is equipped with arc rack 86, arc rack 86 and the meshing of second gear 14.
The novel electric iron box is characterized by further comprising a sliding block 18, a transverse plate 19, a second spring 20, a connecting rod 21, an iron plate 22 and an electromagnet 23, wherein a plurality of sliding grooves 17 are formed in the rear side wall of the box body 4, the sliding block 18 is arranged in each sliding groove 17 in a sliding mode, the transverse plate 19 is arranged on the front side of the sliding block 18, the sliding block 18 is connected with the transverse plate 19 in a welding connection mode, the transverse plate 19 is located in the box body 4, the second spring 20 is arranged between the bottom of the sliding groove 17 and the bottom of the sliding block 18, the connecting rod 21 is arranged on the rear side of the bottom of the sliding block 18, the iron plate 22 is arranged at the bottom of all the connecting rods 21, the connecting rods 21 are connected with the iron plate 22 in a welding connection mode.
Example 4
A random angle ball serving device for tennis training is shown in figures 1-3 and comprises a support frame 1, a semicircular plate 2, supports 3, a box body 4, fixing rods 5, a lower ball tube 6, a driving mechanism 8, hollow tubes 9, a moving block 10, a stop block 11, a first spring 13, a second gear 14, a reel 15 and a pull wire 16, wherein the semicircular plate 2 is arranged at the top of the support frame 1, the supports 3 are arranged on the left side and the right side of the top of the semicircular plate 2, the box body 4 is arranged between the supports 3 on the left side and the right side, the fixing rods 5 are irregularly distributed in the box body 4, the bottom of the box body 4 is provided with a plurality of lower ball tubes 6, the front side of the top of the semicircular plate 2 is uniformly provided with a plurality of hollow tubes 9, the hollow tubes 9 are arranged in a fan shape, the front ends of the hollow tubes 9 are slightly tilted upwards, the bottom ends of the lower ball tubes 6 are connected, the inside rear side of hollow tube 9 is equipped with dog 11, it has through-hole 12 to open in the middle of dog 11, be equipped with first spring 13 between 11 front sides of dog and the movable block 10 rear side, the positive rear side of a plurality of hollow tubes 9 all is equipped with second gear 14, 2 tops of semicircle board are installed to second gear 14 rotary type, second gear 14 tops are equipped with reel 15, be equipped with acting as go-between 16 on the reel 15, the 16 tail ends of acting as go-between pass through-hole 12 and be connected with the movable block 10 rear side, 2 top rear sides of semicircle board are equipped with actuating mechanism 8, actuating mechanism 8 cooperates with second gear 14.
Actuating mechanism 8 is including motor 81, half-gear 82, pivot 83, first gear 84, fan-shaped frame 85 and arc rack 86, the right-hand motor 81 that is equipped with of 2 top rear sides of semicircle board, be connected with half-gear 82 on motor 81's the output shaft, 2 top rear sides middle rotary type of semicircle board is equipped with pivot 83, be equipped with first gear 84 on the pivot 83, first gear 84 and the cooperation of half-gear 82, first gear 84 top is equipped with fan-shaped frame 85, the fan-shaped frame 85 outside is equipped with arc rack 86, arc rack 86 and the meshing of second gear 14.
Still including slider 18, diaphragm 19, second spring 20, connecting rod 21, iron plate 22 and electro-magnet 23, it has a plurality of spouts 17 to open on the lateral wall behind box 4, the slidingtype slider 18 that is equipped with in the spout 17, slider 18 front side is equipped with diaphragm 19, diaphragm 19 is located box 4, be equipped with second spring 20 in the spout 17 between bottom and the slider 18 bottom, slider 18 bottom rear side all is equipped with connecting rod 21, all connecting rod 21 bottoms are equipped with iron plate 22, iron plate 22 and connecting rod 21 are located the box 4 outside, be equipped with electro-magnet 23 under the iron plate 22, electro-magnet 23 is connected with box 4 rear side outer wall.
Still including sliding sleeve 24, slide bar 25, buffer spring 26 and block rubber 27, the 2 top rear sides left of semicircle board is equipped with sliding sleeve 24, semicircle board 2 is connected with sliding sleeve 24 through welded connection's mode, sliding sleeve 24 internal sliding formula is equipped with slide bar 25, slide bar 25 front end is equipped with block rubber 27, be equipped with buffer spring 26 between block rubber 27 rear side and the 24 front sides of sliding sleeve, buffer spring 26 covers in the slide bar 25 outside.
When the tennis training device needs to be used for tennis training, firstly, a person is required to continuously place tennis balls into the box body 4 at the side of the device, the tennis balls enter the box body 4 and randomly fall into the ball dropping tube 6 through the fixing rod 5, the driving mechanism 8 is started, the driving mechanism 8 rotates to drive the second gear 14 to rotate, the second gear 14 rotates to drive the reel 15 to rotate, the reel 15 receives the pull wire 16 to drive the moving block 10 to move backwards, the first spring 13 is compressed, the tennis balls enter the hollow tube 9, and when the driving mechanism 8 is separated from the second gear 14 to be matched, the first spring 13 ejects the tennis balls through the moving block 10 under the elastic force of the first spring 13. Because the catcher does not know in advance which hollow tube 9 the tennis can pop out from, just can't know which angle tennis is sent out from, so can test catcher's reaction, can improve training intensity and effect. After the training is completed, the drive mechanism 8 is closed.
The starter motor 81 rotates clockwise to drive the half gear 82 to rotate clockwise, the half gear 82 rotates clockwise to drive the first gear 84 to rotate anticlockwise, the first gear 84 rotates to drive the sector frame 85 to rotate anticlockwise, the sector frame 85 rotates anticlockwise to drive the second gear 14 to rotate clockwise through the arc-shaped rack 86, the reel 15 rotates clockwise to retract the pull wire 16 when the second gear 14 rotates clockwise, the moving block 10 moves backwards, the first spring 13 is compressed, and when the half gear 82 is not meshed with the first gear 84, the moving block 10 and the sector frame 85 are driven to reset under the elastic force action of the first spring 13.
When a player starts the electromagnet 23 to be electrified, the electromagnet 23 is electrified to attract the iron plate 22 to move downwards to be in contact with the electromagnet, the iron plate 22 moves downwards to drive the sliding block 18 to move downwards through the connecting rod 21, the second spring 20 is compressed, the sliding block 18 moves downwards to drive the transverse plate 19 to move downwards, then the electromagnet 23 is powered off, the electromagnet 23 stops attracting the iron plate 22 after being powered off, the transverse plate 19 is driven by the sliding block 18 to move upwards instantly under the elastic force of the second spring 20, when a tennis ball falls onto the transverse plate 19, the transverse plate 19 can bounce the tennis ball, and the player frequently energizes or deenergizes the electromagnet 23 to enable the transverse plate 19 to move upwards and downwards. Therefore, the randomness of tennis serve can be improved.
When the fan-shaped frame 85 is reset counterclockwise under the elastic force of the first spring 13, the fan-shaped frame 85 impacts the rubber block 27 to move backward, the rubber block 27 moves backward to drive the sliding rod 25 to move backward in the sliding sleeve 24, and the buffer spring 26 plays a role in buffering the fan-shaped frame 85, so that the fan-shaped frame 85 is prevented from being reset excessively.
While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.
Claims (4)
1. The utility model provides a tennis training is with random angle ware of serving, including support frame (1), semicircle board (2), pillar (3), box (4), dead lever (5) and lower bulb (6), support frame (1) top is equipped with semicircle board (2), the semicircle board (2) top left and right sides all is equipped with pillar (3), be equipped with box (4) between left and right sides pillar (3), irregular distribution is equipped with many dead levers (5) in box (4), box (4) bottom is equipped with a plurality of lower bulbs (6), characterized by: the novel steel wire rope pulling device is characterized by further comprising a driving mechanism (8), hollow pipes (9), moving blocks (10), stop blocks (11), first springs (13), second gears (14), a wire winding wheel (15) and a pull wire (16), wherein the front sides of the tops of the semicircular plates (2) are uniformly provided with the hollow pipes (9), the hollow pipes (9) are arranged in a fan shape, the front ends of the hollow pipes (9) are slightly tilted upwards, the bottom ends of the lower ball pipes (6) are connected with the middle of the tops of the hollow pipes (9), the lower ball pipes (6) are communicated with the hollow pipes (9), the moving blocks (10) are arranged in the hollow pipes (9) in a sliding mode, the stop blocks (11) are arranged on the rear sides inside the hollow pipes (9), through holes (12) are formed in the middles of the stop blocks (11), the first springs (13) are arranged between the front sides of the stop blocks (11) and the rear sides of the moving blocks (10), the second gears (14), reel (15) are arranged at the top of the second gear (14), a pull wire (16) is arranged on the reel (15), the tail end of the pull wire (16) penetrates through the through hole (12) and is connected with the rear side of the moving block (10), a driving mechanism (8) is arranged on the rear side of the top of the semicircular plate (2), and the driving mechanism (8) is matched with the second gear (14).
2. The random angle tee for tennis training of claim 1, wherein: actuating mechanism (8) is including motor (81), half gear (82), pivot (83), first gear (84), fan-shaped frame (85) and arc rack (86), the right-hand motor (81) that is equipped with of half-round plate (2) top rear side, be connected with half gear (82) on the output shaft of motor (81), the middle rotary type of half-round plate (2) top rear side is equipped with pivot (83), be equipped with first gear (84) on pivot (83), first gear (84) and half gear (82) cooperation, first gear (84) top is equipped with fan-shaped frame (85), fan-shaped frame (85) outside is equipped with arc rack (86), arc rack (86) and second gear (14) meshing.
3. The random angle tee for tennis training of claim 2, wherein: still including slider (18), diaphragm (19), second spring (20), connecting rod (21), iron plate (22) and electro-magnet (23), it has a plurality of spout (17) to open on box (4) rear side wall, spout (17) internal sliding is equipped with slider (18), slider (18) front side is equipped with diaphragm (19), diaphragm (19) are located box (4), be equipped with second spring (20) between bottom and slider (18) bottom in spout (17), slider (18) bottom rear side all is equipped with connecting rod (21), all connecting rod (21) bottoms are equipped with iron plate (22), iron plate (22) and connecting rod (21) are located the box (4) outside, be equipped with electro-magnet (23) under iron plate (22), electro-magnet (23) and box (4) rear side outer wall connection.
4. A random angle tee for tennis training as defined in claim 3, wherein: the novel rubber slide block is characterized by further comprising a slide sleeve (24), a slide rod (25), a buffer spring (26) and a rubber block (27), wherein the slide sleeve (24) is arranged on the left of the rear side of the top of the semicircular plate (2), the slide rod (25) is arranged in the slide sleeve (24) in a sliding mode, the rubber block (27) is arranged at the front end of the slide rod (25), the buffer spring (26) is arranged between the rear side of the rubber block (27) and the front side of the slide sleeve (24), and the buffer spring (26) is sleeved on the outer side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920521660.2U CN209828198U (en) | 2019-04-17 | 2019-04-17 | Random angle service robot for tennis training |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920521660.2U CN209828198U (en) | 2019-04-17 | 2019-04-17 | Random angle service robot for tennis training |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209828198U true CN209828198U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920521660.2U Expired - Fee Related CN209828198U (en) | 2019-04-17 | 2019-04-17 | Random angle service robot for tennis training |
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| Country | Link |
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| CN (1) | CN209828198U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111603743A (en) * | 2020-06-03 | 2020-09-01 | 平顶山学院 | Sports teaching tennis service trainer |
| CN111714860A (en) * | 2020-07-06 | 2020-09-29 | 山东交通学院 | Automatic tennis service robot for physical education |
| CN112221105A (en) * | 2020-11-27 | 2021-01-15 | 郑州大学体育学院 | Auxiliary service device for volleyball training |
| CN112221106A (en) * | 2020-11-27 | 2021-01-15 | 郑州大学体育学院 | Full random volleyball service robot |
| CN114042302A (en) * | 2021-11-04 | 2022-02-15 | 张清 | Automatic service device for sports tennis |
-
2019
- 2019-04-17 CN CN201920521660.2U patent/CN209828198U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111603743A (en) * | 2020-06-03 | 2020-09-01 | 平顶山学院 | Sports teaching tennis service trainer |
| CN111714860A (en) * | 2020-07-06 | 2020-09-29 | 山东交通学院 | Automatic tennis service robot for physical education |
| CN112221105A (en) * | 2020-11-27 | 2021-01-15 | 郑州大学体育学院 | Auxiliary service device for volleyball training |
| CN112221106A (en) * | 2020-11-27 | 2021-01-15 | 郑州大学体育学院 | Full random volleyball service robot |
| CN112221105B (en) * | 2020-11-27 | 2021-11-05 | 山东沂南园区开发建设有限公司 | Auxiliary service device for volleyball training |
| CN114042302A (en) * | 2021-11-04 | 2022-02-15 | 张清 | Automatic service device for sports tennis |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 Termination date: 20210417 |