CN109157817B - External ball-falling table tennis ball supply and swing speed monitoring device - Google Patents
External ball-falling table tennis ball supply and swing speed monitoring device Download PDFInfo
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- CN109157817B CN109157817B CN201811243444.2A CN201811243444A CN109157817B CN 109157817 B CN109157817 B CN 109157817B CN 201811243444 A CN201811243444 A CN 201811243444A CN 109157817 B CN109157817 B CN 109157817B
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- table tennis
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007664 blowing Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Classifications
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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
- A63B67/00—Sporting games or accessories therefor, not provided for in groups A63B1/00 - A63B65/00
- A63B67/04—Table games physically beneficial for the human body, modelled on outdoor sports, e.g. table tennis
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0686—Timers, rhythm indicators or pacing apparatus using electric or electronic means
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
- A63B2225/09—Adjustable dimensions
- A63B2225/093—Height
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Toys (AREA)
- Pinball Game Machines (AREA)
Abstract
The invention provides an external ball-dropping type table tennis ball supply and swing speed monitoring device, wherein the upper end of a delivery pipe is provided with a ball inlet pipe, the other end of the ball inlet pipe is provided with an inlet groove, the outer top wall of the ball inlet pipe is fixedly connected with a balance pipe, the other end of the balance pipe is fixedly connected with a balance groove, the lower end of the balance groove is fixedly connected with a first connecting rod, the ball inlet pipe and the ball outlet pipe are integrally communicated and connected with each other through a conveying pipe, thereby realizing the effect of recycling the table tennis balls for the same soldier, and simultaneously when the table tennis balls are suspended, the equipment adopts the same air pump for air blowing, so that the table tennis ball can be stably suspended and the suspended point can be conveniently found, and the device is also provided with a combined structure of an adjusting device, a compression spring and a sealing groove, so that the lifting of the equipment can be realized by adjusting the adjusting device, and the device is convenient for athletes with different heights to use.
Description
Technical Field
The invention belongs to the technical field of table tennis equipment, and particularly relates to an external ball-dropping table tennis ball feeding and swing speed monitoring device.
Background
At present, in the table tennis hitting training, the adopted hitting training method mainly comprises the following steps: three ball supplying modes, namely supplying balls by coaches, practicing with teammates and supplying balls by a service robot are adopted, the former two ball supplying modes are greatly influenced by human factors, and the ball supplying regularity is low; the service robot is adopted for supplying the ball, the service robot is high in service speed, and a batting point is difficult to accurately select by a batting person (especially a beginner); and, at present, the speed of waving when the sportsman touches the ball can not be accurately monitored.
The patent application with publication number CN102430236B discloses an external ball-dropping type table tennis ball supply and swing speed monitoring device, the invention adopts suspension type ball supply, and players can accurately select a ball contact point to carry out ball hitting training; the invention can also carry out the launching type ball supply of the table tennis, the ball supply angle can be selected at will, and the reappearance of the running track of the table tennis is ensured, so that the player can effectively carry out the ball receiving training; the invention monitors the swing speed of the athlete in a light beam cutting mode. The invention adopts a plurality of groups of light beam receiving and transmitting devices, can monitor the swing speed of the player in the batting process, and can display the swing speed on the display connected with the control module in real time, thereby realizing the real-time effective monitoring of the technical process of the trainer.
However, the following drawbacks still exist in this patent: (1) in the patent, when the control of the soldier's pang ball suspension is carried out, a plurality of air pumps work simultaneously, so that the soldier's pang ball cannot suspend in a balanced manner easily due to external reasons, and the phenomenon of frequent falling can occur; (2) as the heights of the athletes are different, the height of the monitoring device needs to be set according to the different heights of the athletes, but the adjusting device is not arranged in the patent; (3) the soldier's table tennis ball of patting to can't realize same soldier's table tennis ball cyclic utilization, just so need reserve a large amount of soldier's table tennis balls, it is troublesome all to have brought unnecessary for preparation in earlier stage and later stage arrangement.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide an external ball-dropping type table tennis ball feeding and swing speed monitoring device, aiming at the problems proposed in the background art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the device comprises a conveying pipe, wherein a ball inlet pipe is arranged at the upper end of the conveying pipe, an inlet groove is formed in the other end of the ball inlet pipe, a balance pipe is fixedly connected to the outer top wall of the ball inlet pipe, a balance groove is fixedly connected to the other end of the balance pipe, a first connecting rod is fixedly connected to the lower end of the balance groove, a rubber ball is fixedly connected to the other end of the first connecting rod, a suspended table tennis ball is connected to the lower end of the rubber ball in an abutting mode, an air pump is fixedly connected to the outer top wall of the ball inlet pipe and is a double-outlet air pump, two outlets respectively extend into the ball inlet pipe and the balance pipe, a ball outlet pipe is connected to the other end of the conveying pipe in a penetrating mode, two fixing platforms are symmetrically and fixedly connected to the outer side wall of the other end of the ball outlet pipe, and a first infrared emitter and a second infrared emitter are respectively fixedly connected to the two fixing, the outer side wall of the ball outlet pipe is fixedly connected with a graduated scale, and the ball outlet pipe is provided with a control device;
the control device comprises a control frame, the control frame is fixedly connected to the outer side wall of the ball outlet pipe, the outer top wall of the control frame is fixedly connected with a timer, the inner side wall of the control frame is fixedly connected with an electromagnet, an iron block matched with the electromagnet is arranged in the control frame, a sealing plate is fixedly connected to one end, away from the electromagnet, of the iron block, the other end of the sealing plate movably penetrates through the side wall of the ball outlet pipe, a compression spring is wound on the sealing plate, two ends of the compression spring are fixedly connected to the side wall of the sealing plate and the outer side wall of the ball outlet pipe respectively, one end, located in the ball outlet pipe, of the sealing plate extends into a sealing groove, the sealing groove is formed in the inner side wall of the ball outlet pipe, and the lower end;
the conveying pipe is fixed on the supporting table, the lower end of the supporting table is fixedly connected with a plurality of supporting assemblies, the lower ends of the supporting assemblies are fixedly connected to the upper end faces of the fixing columns, the fixing columns are fixedly connected with the same fixing plate, the fixing plate is movably inserted with a screw rod, the upper end of the screw rod is fixedly connected to the lower end face of the supporting table, and the screw rod is provided with an adjusting device.
Further, the ball outlet pipe is of a rectangular structure.
Further, the lower end of the rubber ball is of a circular arc structure.
Further, the center lines of the ball outlet pipe and the balance groove are arranged on the same vertical line.
Furthermore, the number of the fixing columns is at least three, and the fixing columns are distributed annularly at equal intervals.
Furthermore, the supporting component comprises a supporting rod, a supporting cylinder and a supporting spring, the supporting rod is movably inserted into the supporting cylinder, the supporting spring is wound on the supporting rod, and two ends of the supporting spring are respectively and fixedly connected to the side wall of the supporting rod and the upper end face of the supporting cylinder.
Further, adjusting device includes the nut, nut threaded connection is on the screw rod, and a plurality of second connecting rods of the upper end fixedly connected with of nut, the upper end fixed connection of second connecting rod is on the lower terminal surface of slider, and slider sliding connection is in the annular spout of seting up on the fixed plate, the lateral wall fixedly connected with crank of nut.
Furthermore, a rubber sleeve is fixedly sleeved on the crank, and anti-skid grains are arranged on the rubber sleeve.
According to the external ball-dropping table tennis ball supply and swing speed monitoring device, the ball input pipe and the ball output pipe are in through connection through the transmission pipe body, so that the effect of recycling the same table tennis ball can be achieved, meanwhile, when the table tennis ball is blown to float, the same air pump is adopted for blowing, the table tennis ball can stably float and is convenient to find a floating point, and the device is further provided with the adjusting device, the compression spring and the sealing groove which are in a combined structure, so that the device can be lifted and lowered by adjusting the adjusting device, and can be conveniently used by athletes of different heights.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure A of the present invention;
FIG. 3 is a schematic view of the control device of the present invention;
fig. 4 is a schematic view of the structure of the adjusting device of the present invention.
The reference numerals in the specification are as follows:
defeated pipe 1, ball inlet pipe 2, import groove 3, balance tube 4, balance groove 5, head rod 6, rubber ball 7, suspension soldier's pang ball 8, play ball pipe 9, controlling means 10, fixed platform 11, first infrared emitter 12, second infrared emitter 13, scale 14, supporting bench 15, supporting component 16, fixed column 17, fixed plate 18, screw rod 19, adjusting device 20, air pump 21, control frame 101, electro-magnet 102, time-recorder 103, iron plate 104, closing plate 105, compression spring 106, seal groove 107, table tennis ball 108 of contradicting, nut 201, second connecting rod 202, slider 203, annular spout 204, crank 205, rubber sleeve 206.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 4 together, the external dropping type table tennis ball supply and swing speed monitoring device comprises a conveying pipe 1, a ball inlet pipe 2 is arranged at the upper end of the conveying pipe 1, an inlet groove 3 is arranged at the other end of the ball inlet pipe 2, a balance pipe 4 is fixedly connected to the outer top wall of the ball inlet pipe 2, a balance groove 5 is fixedly connected to the other end of the balance pipe 4, a first connecting rod 6 is fixedly connected to the lower end of the balance groove 5, a rubber ball 7 is fixedly connected to the other end of the first connecting rod 6, a floating table tennis ball 8 is connected to the lower end of the rubber ball 7 in an abutting mode, an air pump 21 is fixedly connected to the outer top wall of the ball inlet pipe 2, the air pump 21 is a double-outlet air pump, two outlets respectively extend into the ball inlet pipe 2 and the balance pipe 4, a ball outlet pipe 9 is connected to the other end of the conveying pipe 1 in a penetrating manner, and two fixing platforms 11 are symmetrically and fixedly connected, the two fixed platforms 11 are respectively fixedly connected with a first infrared emitter 12 and a second infrared emitter 13, the outer side wall of the ball outlet pipe 9 is fixedly connected with a graduated scale 14, the ball outlet pipe 9 is provided with a control device 10, a power switch is started, the air pump 21 works to blow the air in the ball inlet pipe 2 and the balance pipe 4, due to the fact that the air pump 21 generates air, the air from the ball outlet pipe 9 and the balance pipe 4 has a balance point between the air and the air, the balance point is the stop position of the suspended table tennis ball 8, the arrangement of the first connecting rod 6 and the rubber ball 7 is used for quickly finding a suspended floating point for the suspended table tennis ball 8, when the racket passes through the first infrared emitter 12 and beats away the suspended table tennis ball 8 during actual ball beating, the series circuit is communicated, the components in the control device 10 work, and therefore the next table tennis ball moves to the suspended point, timer 103 timing of working, when the racket passes through second infrared emitter 13, the series circuit disconnection, the inside subassembly stop work of controlling means 10, under the synergism of a plurality of subassemblies, block the upward movement of another soldier's pang again, timer 103 stop work, thereby can conveniently read out the time of waving the bat, owing to be provided with scale 14, consequently, the distance between first infrared emitter 12 and the second infrared emitter 13 is known, can calculate the speed of waving the bat like this, in this setting, only need two soldier's pang balls, can accomplish whole cyclic process, reach labour saving and time saving's effect.
In this embodiment, the ball outlet pipe 9 has a rectangular structure, and plays a better role in blocking.
In this embodiment, the lower extreme of rubber ball 7 sets up to circular arc structure, can be more convenient find the suspension point.
In this embodiment, the midline setting of ball outlet pipe 9 and balancing tank 5 is on same vertical line, and the table tennis ball that can be like this can suspend all the time between ball outlet pipe 9 and balancing tank 5.
In this embodiment, as shown in fig. 3, the control device 10 includes a control frame 101, the control frame 101 is fixedly connected to an outer sidewall of the ball outlet tube 9, an outer top wall of the control frame 101 is fixedly connected to a timer 103, an inner sidewall of the control frame 101 is fixedly connected to an electromagnet 102, an iron block 104 matched with the electromagnet 102 is disposed in the control frame 101, one end of the iron block 104 far away from the electromagnet 102 is fixedly connected to a sealing plate 105, the other end of the sealing plate 105 movably penetrates through the sidewall of the ball outlet tube 9, a compression spring 106 is wound and connected to the sealing plate 105, two ends of the compression spring 106 are respectively fixedly connected to the sidewall of the sealing plate 105 and the outer sidewall of the ball outlet tube 9, one end of the sealing plate 105 located in the ball outlet tube 9 extends into a sealing groove 107, the sealing groove 107 is opened in the inner sidewall of the ball outlet tube 9, a lower end of the sealing plate 105 is connected to, in the device, the first infrared emitter 12 and the second infrared emitter 13 play the role of a switch, when the first infrared emitter 12 is blocked, the series circuit is communicated, the electromagnet 102 and the timer 103 work, when the second infrared emitter 13 is blocked, the series circuit is disconnected, the electromagnet 102 and the timer 103 stop working, when the racket passes through the first infrared emitter 12 and beats away the floating ping-pong ball 8, the series circuit is communicated, the electromagnet 102 works to generate magnetism, the iron block 104 is attracted to drive the sealing plate 105 to move, so that the floating point 108 can be moved upwards and quickly found, the timer 103 starts working for timing, when the racket passes through the second infrared emitter 13, the series circuit is disconnected, the electromagnet 102 stops working, so that the sealing plate 105 enters the sealing groove 107 again under the action of the compression spring 106, blocking the upward movement of the next abutting ping-pong ball 108.
In this embodiment, as shown in fig. 1, the conduit 1 is fixed on the support table 15, the lower end of the support table 15 is fixedly connected with a plurality of support assemblies 16, the lower ends of the plurality of support assemblies 16 are all fixedly connected to the upper end surfaces of the fixing columns 17, the fixing columns 17 are fixedly connected with the same fixing plate 18, the fixing plate 18 is movably inserted with a screw rod 19, the upper end of the screw rod 19 is fixedly connected to the lower end surface of the support table 15, the screw rod 19 is provided with an adjusting device 20, and due to the existence of the adjusting device 20, the screw rod 19 can be driven to move in a vertical direction through the adjusting device 20, so that the height of the equipment can be adjusted.
In this embodiment, the number of the fixing posts 17 is at least three, and the fixing posts are distributed annularly at equal intervals, so as to play a better supporting role.
In this embodiment, the supporting component 16 includes a supporting rod, a supporting cylinder and a supporting spring, the supporting rod is movably inserted on the supporting cylinder, and the supporting spring is wound on the supporting rod, and the two ends of the supporting spring are respectively fixedly connected to the side wall of the supporting rod and the upper end surface of the supporting cylinder, so that the supporting spring can play a role of stretching and retracting, and can also play a role of guiding, thereby preventing the equipment from inclining when being adjusted.
In this embodiment, as shown in fig. 4, the adjusting device 20 includes a nut 201, the nut 201 is screwed on the screw rod 19, the upper end of the nut 201 is fixedly connected with a plurality of second connecting rods 202, the upper end of the second connecting rods 202 is fixedly connected to the lower end surface of the sliding block 203, the sliding block 203 is slidably connected in an annular sliding groove 204 formed in the fixing plate 18, the side wall of the nut 201 is fixedly connected with a crank 205, the crank 205 is rocked, the rotation of the crank 205 can drive the nut 201 to rotate, and the nut 201 is screwed with the screw rod 19, so that the screw rod 19 can move in the vertical direction due to the rotation of the nut 201, and an effect of adjusting the height of the device is achieved.
In this embodiment, as shown in fig. 4, the crank 205 is fixedly sleeved with a rubber sleeve 206, and the rubber sleeve 206 is provided with anti-slip lines, so as to achieve a better anti-slip effect.
The first infrared emitter 12, the second infrared emitter 13, the electromagnet 102, the timer 103 and an external power supply are connected in series through a lead, and the air pump 21, the external power supply and the power switch form a series loop through leads.
According to the external ball-dropping table tennis ball feeding and swing speed monitoring device disclosed by the embodiment of the invention, the conveying pipe 1 is integrally communicated with the ball inlet pipe 2 and the ball outlet pipe 9, so that the effect of recycling the same table tennis ball can be realized, meanwhile, when the table tennis ball is blown to float, the same air pump 21 is adopted for blowing air in the device, the table tennis ball can stably float and is convenient to find a floating point, and the device is further provided with a combined structure of the adjusting device 20, the compression spring 106 and the sealing groove 107, so that the lifting of the device can be realized by adjusting the adjusting device 20, and the device is convenient for players with different heights to use.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (1)
1. Ball formula table tennis confession and swing bat speed monitoring devices under outside, including defeated pipe, its characterized in that: the upper end of the delivery pipe is provided with a ball inlet pipe, the other end of the ball inlet pipe is provided with an inlet groove, the outer top wall of the ball inlet pipe is fixedly connected with a balance pipe, the other end of the balance pipe is fixedly connected with a balance groove, the lower end of the balance groove is fixedly connected with a first connecting rod, the other end of the first connecting rod is fixedly connected with a rubber ball, the lower end of the rubber ball is in contact connection with a suspended table tennis ball, the outer top wall of the ball inlet pipe is fixedly connected with an air pump, the air pump is a double-outlet air pump, two outlets respectively extend into the ball inlet pipe and the balance pipe, the other end of the delivery pipe is in through connection with a ball outlet pipe, the outer side wall of the other end of the ball outlet pipe is symmetrically and fixedly connected with two fixing platforms, the two fixing platforms are respectively and fixedly connected with a first infrared emitter and a second infrared emitter, the control device comprises a control frame, the control frame is fixedly connected to the outer side wall of the ball outlet pipe, the outer top wall of the control frame is fixedly connected with a timer, the inner side wall of the control frame is fixedly connected with an electromagnet, an iron block matched with the electromagnet is arranged in the control frame, a sealing plate is fixedly connected to one end, away from the electromagnet, of the iron block, the other end of the sealing plate movably penetrates through the side wall of the ball outlet pipe, a compression spring is wound on the sealing plate, two ends of the compression spring are respectively and fixedly connected to the side wall of the sealing plate and the outer side wall of the ball outlet pipe, and one end, located in the ball outlet pipe, of the sealing plate extends into the sealing groove, the sealing groove is arranged on the inner side wall of the ball outlet pipe, the lower end of the sealing plate is connected with a table tennis ball in a butting mode, the conveying pipe is fixed on the supporting table, the lower end of the supporting table is fixedly connected with a plurality of supporting assemblies, the lower ends of the supporting assemblies are fixedly connected onto the upper end faces of the fixing columns, the fixing columns are fixedly connected with the same fixing plate, the fixing plate is movably inserted with a screw, the upper end of the screw is fixedly connected onto the lower end face of the supporting table, the screw is provided with an adjusting device, the number of the fixing columns is at least three, the fixing columns are distributed in an annular shape with equal distance, the supporting assemblies comprise supporting rods, supporting cylinders and supporting springs, the supporting rods are movably inserted onto the supporting cylinders, the supporting springs are wound on the supporting rods, and the two ends of the supporting springs are respectively and fixedly connected onto the side, adjusting device includes the nut, nut threaded connection is on the screw rod, and a plurality of second connecting rods of upper end fixedly connected with of nut, the upper end fixed connection of second connecting rod is on the lower terminal surface of slider, and in the annular spout that slider sliding connection seted up on the fixed plate, the lateral wall fixedly connected with crank of nut, the fixed cover has connect the rubber sleeve on the crank, and has seted up anti-skidding line on the rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811243444.2A CN109157817B (en) | 2018-10-24 | 2018-10-24 | External ball-falling table tennis ball supply and swing speed monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811243444.2A CN109157817B (en) | 2018-10-24 | 2018-10-24 | External ball-falling table tennis ball supply and swing speed monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109157817A CN109157817A (en) | 2019-01-08 |
| CN109157817B true CN109157817B (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811243444.2A Expired - Fee Related CN109157817B (en) | 2018-10-24 | 2018-10-24 | External ball-falling table tennis ball supply and swing speed monitoring device |
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| Country | Link |
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| CN (1) | CN109157817B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354162B (en) * | 2020-11-16 | 2022-01-04 | 吉林师范大学 | External ball-falling table tennis ball supply and swing speed monitoring device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080009373A1 (en) * | 2006-07-10 | 2008-01-10 | Raymond Binder | Air batting tee |
| CN102430236A (en) * | 2011-12-28 | 2012-05-02 | 哈尔滨师范大学 | External goal table tennis ball feed and swing speed monitoring device |
| CN102527013A (en) * | 2012-03-27 | 2012-07-04 | 哈尔滨师范大学 | Badminton training machine |
| CN105521592A (en) * | 2016-02-24 | 2016-04-27 | 盐城工学院 | Conveniently adjustable table tennis table |
| CN205964930U (en) * | 2016-08-30 | 2017-02-22 | 盐城市艾斯特体育器材有限公司 | Height -adjustable's table tennis exercise equipment |
| CN206372489U (en) * | 2017-01-17 | 2017-08-04 | 冯俊甜 | A kind of recreational baseball practice device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7874942B2 (en) * | 2008-10-22 | 2011-01-25 | Yann O. Auzoux | Ball toss toy |
-
2018
- 2018-10-24 CN CN201811243444.2A patent/CN109157817B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080009373A1 (en) * | 2006-07-10 | 2008-01-10 | Raymond Binder | Air batting tee |
| CN102430236A (en) * | 2011-12-28 | 2012-05-02 | 哈尔滨师范大学 | External goal table tennis ball feed and swing speed monitoring device |
| CN102527013A (en) * | 2012-03-27 | 2012-07-04 | 哈尔滨师范大学 | Badminton training machine |
| CN105521592A (en) * | 2016-02-24 | 2016-04-27 | 盐城工学院 | Conveniently adjustable table tennis table |
| CN205964930U (en) * | 2016-08-30 | 2017-02-22 | 盐城市艾斯特体育器材有限公司 | Height -adjustable's table tennis exercise equipment |
| CN206372489U (en) * | 2017-01-17 | 2017-08-04 | 冯俊甜 | A kind of recreational baseball practice device |
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| Publication number | Publication date |
|---|---|
| CN109157817A (en) | 2019-01-08 |
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Inventor after: Hou Kai Inventor after: Ge Bing Inventor after: Zhang Guoqing Inventor after: Zhao Haiquan Inventor after: Guo Changchen Inventor after: Qu Fei Inventor before: Ge Bing Inventor before: Zhang Guoqing Inventor before: Zhao Haiquan Inventor before: Guo Changchen Inventor before: Qu Fei |
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