CN112426679A - Arm strength training device for volleyball training of children - Google Patents
Arm strength training device for volleyball training of children Download PDFInfo
- Publication number
- CN112426679A CN112426679A CN202011179037.7A CN202011179037A CN112426679A CN 112426679 A CN112426679 A CN 112426679A CN 202011179037 A CN202011179037 A CN 202011179037A CN 112426679 A CN112426679 A CN 112426679A
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- wall
- fixedly connected
- pipe
- volleyball
- rod
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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
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/12—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles
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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
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/0095—Training appliances or apparatus for special sports for volley-ball
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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
- A63B2243/00—Specific ball sports not provided for in A63B2102/00 - A63B2102/38
- A63B2243/0095—Volleyball
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention belongs to the technical field of volleyball training, and particularly relates to an arm strength training device for children volleyball training, which comprises four supporting tubes, wherein telescopic assemblies are fixedly arranged at the bottoms of the four supporting tubes, the top parts of the four supporting tubes are fixedly provided with a same top plate, a support column is fixedly connected to the center position of the bottom part of the top plate, a cylinder is fixedly connected to the bottom part of the support column, cross rods are fixedly connected to two sides of two ends of the cylinder, one ends of the four cross rods, far away from the cylinder, are respectively and fixedly connected to one sides of the four supporting tubes, a rotating rod is rotatably connected to the inner wall of the cylinder, and two ends of the rotating rod are respectively and fixedly connected with a rotating screw rod. The arm strength can be exercised by the skill, and the hand feeling of hitting the volleyball can be kept.
Description
Technical Field
The invention relates to the technical field of volleyball training, in particular to an arm strength training device for volleyball training of children.
Background
Volleyball is a leading sports in China, a lot of children are learning at present, the ball catching in volleyball sports is one of basic technologies and is the most effective attacking means with the strongest aggressivity, the volleyball playing games plays a very important role in the game, good arm strength is needed as a basis, therefore, children want to lay the basis for the next time and become professional volleyball players in the future, the training of the arm strength is indispensable, but the basic training of the arm strength is some body building equipment with heavy load at present, no special volleyball training device is provided, and therefore, the arm strength training device for volleyball training is designed to solve the problem.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an arm strength training device for volleyball training of children.
In order to achieve the purpose, the invention adopts the following technical scheme:
an arm strength training device for volleyball training of children comprises four supporting tubes, wherein telescopic components are fixedly mounted at the bottoms of the four supporting tubes, the top of each supporting tube is fixedly provided with a same top plate, a pillar is fixedly connected to the center of the bottom of the top plate, a cylinder is fixedly connected to the bottom of the pillar, transverse rods are fixedly connected to the two sides of each end of the cylinder, one ends of the four transverse rods, far away from the cylinder, are respectively and fixedly connected to one sides of the four supporting tubes, the inner wall of the cylinder is rotatably connected with a rotating rod, rotating screws are fixedly connected to the two ends of the rotating rod, rotary volutes are sleeved on the outer walls of the two rotating screws, a hollow circular plate is fixedly connected to one end, far away from the rotating rod, of each rotary volutes is slidably connected to the inner wall of the cylinder, and a, the utility model discloses a hollow round bar, including drum, first round bar, inner wall sliding connection, one side threaded connection of drum has the pipe, one side that hollow plectane was kept away from to first round bar run through the inner wall of pipe and with the inner wall sliding connection of pipe, threaded connection has the nut on the outer wall of first round bar, the nut is located one side of the outside and the fixed connection of drum at the pipe, the outer wall fixed cover of nut is equipped with nut spanner, nut spanner's bottom fixedly connected with adjusts the pole, the cover is equipped with first spring on the outer wall of first round bar, one side that pipe and hollow plectane are close to each other is fixed respectively at the both ends of first spring, the rectangle through-hole has been seted up at the bottom center of drum, the central point fixedly connected with transfer line of dwang, the transfer line passes rectangle through-hole and.
Preferably, the fixed cover of outer wall of dwang is equipped with the bearing, the inner wall of bearing and the fixed welding of outer wall of dwang, the fixed welding of outer wall of bearing is on the inner wall of drum.
An arm strength training device for volleyball training of children as claimed in claim 1, wherein a second linear guide is provided between the inner wall of the cylinder and the outer wall of the hollow circular plate, and one side of the second linear guide is installed on the inner wall of the cylinder and the other side is installed on the outer wall of the hollow circular plate.
Preferably, a first linear guide rail is arranged between the inner wall of the hollow circular plate and the outer wall of the first circular rod, one side of the first linear guide rail is installed on the inner wall of the hollow circular plate, and one side of the first linear guide rail is installed on the outer wall of the first circular rod.
Preferably, a linear bearing is arranged between the inner wall of the circular tube and the outer wall of the first circular rod, the first circular rod penetrates through the inner ring of the linear bearing and is in sliding connection with the linear bearing, and the outer ring of the linear bearing is fixed on the inner wall of the circular tube.
Preferably, the top of the simulated volleyball is fixedly provided with a bolt, the bottom of the transmission rod is provided with a threaded hole, and the bolt is matched with the threaded hole.
Preferably, the telescopic assembly comprises an upper sliding pipe, the upper sliding pipe is fixed at the bottom of the supporting pipe, the upper sliding pipe is connected with a lower sliding pipe in a sliding manner, the bottom of the lower sliding pipe is fixedly connected with a supporting rod, the bottom of the supporting rod is fixedly connected with a base, the top of the lower sliding pipe is fixedly provided with a lower baffle, the top of the upper sliding pipe is fixedly provided with an upper baffle, the bottom of the lower baffle is fixedly connected with a second round bar, the other end of the second round bar penetrates through the upper baffle and extends to the inside of the supporting pipe, the outer wall of the second round bar is sleeved with a second spring, the two ends of the second spring are respectively fixed at one side of the upper baffle, which is close to the lower baffle, one side of the upper sliding pipe and the other side of the lower sliding pipe are fixedly connected with sawtooth strips, the two sawtooth strips are meshed with a gear, one end of the hexagonal pipe extends to the outer portion of one side of the lower sliding pipe and is fixedly connected with an upper baffle, a hexagonal rod is inserted into the hexagonal pipe, and one end of the hexagonal rod extends to the outer portion of the other side of the lower sliding pipe.
Preferably, one end of the hexagonal rod, which is far away from the hexagonal pipe, is fixedly connected with a pull ring.
Compared with the prior art, the invention has the beneficial effects that: : the base is fixed on the ground, the hexagonal pipe can be driven to rotate by rotating the upper baffle plate, the lower sliding pipe and the upper sliding pipe can slide relatively, the device can be lifted or lowered, when the device reaches a proper position, inserting a hexagonal rod to prevent the hexagonal pipe from rotating, fixing the height of the device, selecting a simulation volleyball 15 with proper size to be rotationally fixed on a transmission rod, slapping the simulation volleyball, enabling the simulation volleyball to generate torsional force on a rotating rod through the transmission rod, enabling the rotating rod to drive a rotating screw rod to rotate in a rotating spiral ring, enabling the rotating spiral ring to generate displacement to compress a first spring, after the slapping is finished, the first spring pushes the rotary screw ring to move, the rotary screw rod and the rotary rod are forced by the rotary screw ring to rotate reversely to drive the transmission rod and the simulation volleyball to reset, the adjusting rod is rotated, can make to rotate the nut, the nut drives the pipe and rotates, can make the pipe produce the displacement, can compress or relax first spring and increase or reduce the resistance.
The strength of the arms is exercised by simulating the action of hitting the volleyballs, and the resistance and the height can be adjusted for different heights and strengths to match training, so that the arm strength is exercised by the skill, and the hand feeling of hitting the volleyballs can be kept.
Drawings
FIG. 1 is a front sectional view of an arm strength training device for volleyball training of children according to the present invention;
FIG. 2 is a top sectional view of an arm strength training device for volleyball training of children according to the present invention;
FIG. 3 is a side view of an arm strength training device for volleyball training of children according to the present invention;
FIG. 4 is an enlarged schematic view of an arm strength training device B for volleyball training of children according to the present invention;
FIG. 5 is an enlarged schematic view of an arm strength training device A for volleyball training of children according to the present invention;
FIG. 6 is a three-dimensional schematic view of a cylinder and a transmission rod of an arm strength training device for volleyball training of children according to the present invention;
fig. 7 is a three-dimensional schematic view of a hexagonal rod of an arm strength training device for volleyball training of children according to the present invention.
In the figure: 1. supporting a tube; 2. a top plate; 3. a pillar; 4. a cylinder; 5. adjusting a rod; 6. a linear bearing; 7. a circular tube; 8. a first round bar; 9. a first spring; 10. a first linear guide rail; 11. rotating the rod; 12. a rectangular through hole; 13. a transmission rod; 14. a bolt; 15. simulating volleyballs; 16. a bearing; 17. rotating the screw; 18. a spirocyclic ring; 19. a second linear guide; 20. a hollow circular plate; 21. a nut; 22. a pull ring; 23. a base; 24. a support bar; 25. a lower sliding pipe; 26. a sawtooth strip; 27. sliding the tube up; 28. a second round bar; 29. a second spring; 30. a lower baffle plate; 31. a gear; 32. a hexagonal tube; 33. an upper baffle plate; 34. a hexagonal bar; 35. a nut wrench; 36. a cross bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
As shown in fig. 1-7, the arm strength training device for volleyball training of this embodiment includes four support tubes 1, telescopic assemblies are fixedly mounted at bottoms of the four support tubes 1, a top plate 2 is fixedly mounted at tops of the four support tubes 1, a pillar 3 is fixedly connected to a central position of a bottom of the top plate 2, a cylinder 4 is fixedly connected to a bottom of the pillar 3, cross bars 36 are fixedly connected to two sides of two ends of the cylinder 4, ends of the four cross bars 36 far away from the cylinder 4 are respectively fixedly connected to one sides of the four support tubes 1, a rotation rod 11 is rotatably connected to an inner wall of the cylinder 4, rotation screws 17 are fixedly connected to two ends of the rotation rod 11, rotary volutes 18 are respectively sleeved on outer walls of the two rotation screws 17, a hollow circular plate 20 is fixedly connected to an end of the rotation volutes 18 far away from the rotation rod 11, the inner wall of hollow plectane 20 runs through there is first round bar 8, the outer wall of first round bar 8 and the inner wall sliding connection of hollow plectane 20, one side threaded connection of drum 4 has pipe 7, one side that hollow plectane 20 was kept away from to first round bar 8 runs through the inner wall of pipe 7 and with the inner wall sliding connection of pipe 7, threaded connection has nut 21 on the outer wall of first round bar 8, nut 21 is located the outside of drum 4 and fixed connection is in one side of pipe 7, the outer wall fixed cover of nut 21 is equipped with nut spanner 35, the bottom fixedly connected with of nut spanner 35 adjusts pole 5, the cover is equipped with first spring 9 on the outer wall of first round bar 8, the both ends of first spring 9 are fixed respectively in the one side that pipe 7 and hollow plectane 20 are close to each other, rectangle through-hole 12 has been seted up at the bottom center of drum 4, the central point fixedly connected with transfer line 13 of dwang 11, transfer line 13 passes.
In this embodiment, the outer wall of the rotating rod 11 is fixedly sleeved with the bearing 16, the inner wall of the bearing 16 is fixedly welded with the outer wall of the rotating rod 11, and the outer wall of the bearing 16 is fixedly welded on the inner wall of the cylinder 4.
In this embodiment, a second linear guide 19 is provided between the inner wall of the cylinder 4 and the outer wall of the hollow circular plate 20, one side of the second linear guide 19 is attached to the inner wall of the cylinder 4, and the other side is attached to the outer wall of the hollow circular plate 20.
In this embodiment, a first linear guide 10 is provided between the inner wall of the hollow circular plate 20 and the outer wall of the first circular rod 8, one side of the first linear guide 10 is attached to the inner wall of the hollow circular plate 20, and one side of the first linear guide 10 is attached to the outer wall of the first circular rod 8.
In this embodiment, a linear bearing 6 is arranged between the inner wall of the circular tube 7 and the outer wall of the first circular rod 8, the first circular rod 8 penetrates through the inner ring of the linear bearing 6 and is connected with the linear bearing 6 in a sliding manner, and the outer ring of the linear bearing 6 is fixed on the inner wall of the circular tube 7.
In this embodiment, a bolt 14 is fixedly installed at the top of the simulated volleyball 15, a threaded hole is formed at the bottom of the transmission rod 13, and the bolt 14 is matched with the threaded hole.
In this embodiment, the telescopic assembly includes an upper sliding tube 27, the upper sliding tube 27 is fixed at the bottom of the support tube 1, the upper sliding tube 27 is connected with a lower sliding tube 25 in a sliding manner, the bottom of the lower sliding tube 25 is fixedly connected with a support rod 24, the bottom of the support rod 24 is fixedly connected with a base 23, the top of the lower sliding tube 25 is fixedly provided with a lower baffle 30, the top of the upper sliding tube 27 is fixedly provided with an upper baffle 33, the bottom of the lower baffle 30 is fixedly connected with a second round rod 28, the other end of the second round rod 28 penetrates through the upper baffle 33 and extends into the support tube 1, the outer wall of the second round rod 28 is sleeved with a second spring 29, the two ends of the second spring 29 are respectively fixed at one side where the upper baffle 33 and the lower baffle 30 are close to each other, one side of the upper sliding tube 27 and the other side of the lower sliding tube 25 are both fixedly connected with sawtooth strips 26, the, one end of the hexagonal tube 32 extends to one side of the lower sliding tube 25 and is fixedly connected with an upper baffle 33, a hexagonal rod 34 is inserted into the hexagonal tube 32, and one end of the hexagonal rod 34 extends to the other side of the lower sliding tube 25.
In this embodiment, the end of the hex bar 34 remote from the hex tube 32 is fixedly connected to the pull ring 22.
The working principle is as follows: the base 23 is fixed on the ground, the hexagonal tube 32 can drive the gear 31 to rotate by rotating the upper baffle 33, the lower sliding tube 25 and the upper sliding tube 27 can relatively slide, the device can be lifted or lowered, when the device reaches a proper position, the hexagonal tube 32 cannot rotate by inserting the hexagonal rod 34, the height of the device is fixed, the simulation volleyball 15 with a proper size is selected to be rotationally fixed on the transmission rod 13, the simulation volleyball 15 is flapped, the simulation volleyball 15 generates torsional force on the transmission rod 11 through the transmission rod 13, the rotating rod 11 drives the rotary screw 17 to rotate in the rotary screw ring 18, the rotary screw ring 18 generates displacement to compress the first spring 9, after the volleyball is knocked, the first spring 9 pushes the rotary screw ring 18 to displace, the rotary screw 17 and the rotating rod 11 are forced by the rotary screw 18 to reversely rotate, the transmission rod 13 and the simulation volleyball 15 are, the nut 21 rotates the barrel 7 to displace the barrel 7 and compress or relax the first spring 9 to increase or decrease the resistance.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides an arm strength training device that children's volleyball training was used, includes four stay tubes (1), its characterized in that, four the equal fixed mounting in bottom of stay tube (1) has flexible subassembly, four the top fixed mounting of stay tube (1) has same roof (2), the bottom central point of roof (2) puts fixedly connected with pillar (3), the bottom fixedly connected with drum (4) of pillar (3), the equal fixedly connected with horizontal pole (36) in both sides at drum (4) both ends, four the one end of keeping away from drum (4) of horizontal pole (36) is fixed connection respectively in one side of four stay tubes (1), the inner wall of drum (4) rotates and is connected with dwang (11), the equal fixedly connected with in both ends of dwang (11) rotates screw rod (17), two the outer wall of rotating screw rod (17) all overlaps and is equipped with rotatory spiro (18), the one end fixedly connected with hollow plectane (20) of dwang (11) is kept away from to rotatory spiro (18), hollow plectane (20) sliding connection is on the inner wall of drum (4), the inner wall of hollow plectane (20) runs through and has first round bar (8), the outer wall of first round bar (8) and the inner wall sliding connection of hollow plectane (20), one side threaded connection of drum (4) has pipe (7), one side that hollow plectane (20) were kept away from in first round bar (8) runs through the inner wall of pipe (7) and with the inner wall sliding connection of pipe (7), threaded connection has nut (21) on the outer wall of first round bar (8), nut (21) are located the outside of drum (4) and fixed connection is in one side of pipe (7), the outer wall fixed cover of nut (21) is equipped with nut spanner (35), the bottom fixedly connected with of nut spanner (35) adjusts pole (5), the cover is equipped with first spring (9) on the outer wall of first round bar (8), one side that pipe (7) and hollow plectane (20) are close to each other is fixed respectively at the both ends of first spring (9), rectangle through-hole (12) have been seted up at the bottom center of drum (4), fixedly connected with transfer line (13) are put to the center of dwang (11), transfer line (13) pass rectangle through-hole (12) and threaded connection have emulation volleyball (15).
2. An arm strength training device for volleyball training of children as claimed in claim 1, wherein the outer wall of the rotating rod (11) is fixedly sleeved with a bearing (16), the inner wall of the bearing (16) is fixedly welded with the outer wall of the rotating rod (11), and the outer wall of the bearing (16) is fixedly welded on the inner wall of the cylinder (4).
3. An arm strength training device for volleyball training of children as claimed in claim 1, wherein a second linear guide (19) is provided between the inner wall of the cylinder (4) and the outer wall of the hollow circular plate (20), one side of the second linear guide (19) is installed on the inner wall of the cylinder (4) and one side is installed on the outer wall of the hollow circular plate (20).
4. The arm power training device for volleyball training of the children as claimed in claim 1, wherein a first linear guide (10) is disposed between an inner wall of the hollow circular plate (20) and an outer wall of the first round bar (8), one side of the first linear guide (10) is mounted on the inner wall of the hollow circular plate (20), and one side of the first linear guide (10) is mounted on the outer wall of the first round bar (8).
5. An arm strength training device for volleyball training of children as claimed in claim 1, wherein a linear bearing (6) is arranged between the inner wall of the circular tube (7) and the outer wall of the first circular rod (8), the first circular rod (8) penetrates through the inner ring of the linear bearing (6) and is connected with the linear bearing (6) in a sliding manner, and the outer ring of the linear bearing (6) is fixed on the inner wall of the circular tube (7).
6. The arm strength training device for volleyball training of the children as claimed in claim 1, wherein a bolt (14) is fixedly mounted at the top of the simulated volleyball (15), a threaded hole is formed in the bottom of the transmission rod (13), and the bolt (14) and the threaded hole are matched with each other.
7. The arm strength training device for volleyball training of children according to claim 1, wherein the telescopic assembly comprises an upper sliding pipe (27), the upper sliding pipe (27) is fixed at the bottom of the support pipe (1), the upper sliding pipe (27) is slidably connected with a lower sliding pipe (25), the bottom of the lower sliding pipe (25) is fixedly connected with a support rod (24), the bottom of the support rod (24) is fixedly connected with a base (23), the top of the lower sliding pipe (25) is fixedly provided with a lower baffle (30), the top of the upper sliding pipe (27) is fixedly provided with an upper baffle (33), the bottom of the lower baffle (30) is fixedly connected with a second round bar (28), the other end of the second round bar (28) penetrates through the upper baffle (33) and extends to the inside of the support pipe (1), and a second spring (29) is sleeved on the outer wall of the second round bar (28), the both ends of second spring (29) are fixed respectively in last baffle (33) and the one side that is close to each other of baffle (30) down, the equal fixedly connected with sawtooth rack (26) of the opposite side of going up slide tube (27) and lower slide tube (25), two sawtooth rack (26) mesh jointly has gear (31), the fixed cover in center of gear (31) is equipped with hexagonal pipe (32), the one end of hexagonal pipe (32) extends to one side outside and fixedly connected with overhead gage (33) of lower slide tube (25), hexagonal pole (34) have been inserted in hexagonal pipe (32), the one end of hexagonal pole (34) extends to the opposite side outside of lower slide tube (25).
8. The arm strength training device for volleyball training of children as claimed in claim 7, wherein a pull ring (22) is fixedly connected to one end of the hexagonal rod (34) away from the hexagonal tube (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011179037.7A CN112426679B (en) | 2020-10-29 | 2020-10-29 | Arm strength training device for volleyball training of children |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011179037.7A CN112426679B (en) | 2020-10-29 | 2020-10-29 | Arm strength training device for volleyball training of children |
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| Publication Number | Publication Date |
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| CN112426679A true CN112426679A (en) | 2021-03-02 |
| CN112426679B CN112426679B (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011179037.7A Active CN112426679B (en) | 2020-10-29 | 2020-10-29 | Arm strength training device for volleyball training of children |
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| CN (1) | CN112426679B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2269227Y (en) * | 1996-09-28 | 1997-12-03 | 梁镛仁 | Adjustable hand-held exercising apparatus for wrist and arm |
| JP2007190320A (en) * | 2006-01-23 | 2007-08-02 | Masahito Suzuki | Baseball swing practicing apparatus |
| CN206508490U (en) * | 2017-03-01 | 2017-09-22 | 陕西师范大学 | A kind of volleyball training frame |
| CN109011466A (en) * | 2018-08-16 | 2018-12-18 | 邢明的 | A kind of football training machine people |
| CN208809415U (en) * | 2018-08-20 | 2019-05-03 | 成都体育学院 | A kind of basketball training roly-poly type barrier device |
| CN111097152A (en) * | 2020-01-07 | 2020-05-05 | 辽东学院 | Volleyball hitting strength training device |
-
2020
- 2020-10-29 CN CN202011179037.7A patent/CN112426679B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2269227Y (en) * | 1996-09-28 | 1997-12-03 | 梁镛仁 | Adjustable hand-held exercising apparatus for wrist and arm |
| JP2007190320A (en) * | 2006-01-23 | 2007-08-02 | Masahito Suzuki | Baseball swing practicing apparatus |
| CN206508490U (en) * | 2017-03-01 | 2017-09-22 | 陕西师范大学 | A kind of volleyball training frame |
| CN109011466A (en) * | 2018-08-16 | 2018-12-18 | 邢明的 | A kind of football training machine people |
| CN208809415U (en) * | 2018-08-20 | 2019-05-03 | 成都体育学院 | A kind of basketball training roly-poly type barrier device |
| CN111097152A (en) * | 2020-01-07 | 2020-05-05 | 辽东学院 | Volleyball hitting strength training device |
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| CN112426679B (en) | 2021-07-27 |
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