CN113577730B - Physical training device for physical education - Google Patents
Physical training device for physical education Download PDFInfo
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- CN113577730B CN113577730B CN202110919690.0A CN202110919690A CN113577730B CN 113577730 B CN113577730 B CN 113577730B CN 202110919690 A CN202110919690 A CN 202110919690A CN 113577730 B CN113577730 B CN 113577730B
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- hole
- cavity
- training device
- chain
- axis
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- 238000004804 winding Methods 0.000 description 4
- 240000007643 Phytolacca americana Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000386 athletic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B65/00—Implements for throwing ; Mechanical projectors, e.g. using spring force
- A63B65/06—Heavy throwing-balls, i.e. "medicine balls", shots, weights or stones for putting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention discloses a physical training device for physical education, and belongs to the technical field of physical training. This physical training device for sports education is equipped with the chain that handle and one end and handle are connected, still includes: the adjusting device comprises a second ball body and a plurality of first ball bodies which are uniformly distributed at intervals, and the first ball bodies penetrate through the other end of the chain and are fixedly connected with the chain; a through hole is formed in the second ball body, the chain penetrates through the through hole, a first cavity which is symmetrical about the axis of the through hole is formed in the wall of the through hole, the side wall of the first cavity is rotatably connected with two ends of two rotating shafts, the two rotating shafts are perpendicular to the axis and located on two sides of the axis, and a plurality of plate bodies are fixedly distributed on the arc surface of each rotating shaft; when the beginner rotates to the limit speed and is difficult to keep the two forces balanced, the second ball body is controlled to move towards the handle, the centripetal force generated by the second ball body to the human body is reduced, and the beginner can adjust the state in time to prevent falling.
Description
Technical Field
The invention relates to the technical field of physical training, in particular to a physical training device for physical education.
Background
A hammer is a long-distance competition in athletics that allows both hands to throw. The player holds the handles of the iron chains on the hammer balls with two hands, and the player drives the hammer balls to rotate, and finally applies force to enable the balls to be taken off the hands and be discharged.
In the process of putting the hammer throw, the sportsman and the hammer are rotated simultaneously, and the rotation center of the sportsman and the hammer is positioned on one foot of the sportsman, under the condition of quick rotation, the sportsman must keep the centripetal force of the sportsman rotating around the foot and the centripetal force of the hammer rotating around the foot balanced by two forces, a beginner can exercise the hammer capable of improving the speed, the strength and the explosive force of the hammer, because the hammer is far away from the beginner, the received centripetal force is large, the two-force balance is not easy to keep under the condition of quick rotation, and the beginner can fall down and be injured under the condition of quick rotation seriously, thereby providing the physical training device for physical education which can adjust the centripetal force of the hammer.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a physical training device for physical education.
The invention provides a physical training device for physical education, which is provided with a handle and a chain with one end connected with the handle, and is characterized by also comprising:
the adjusting device comprises a second ball body and a plurality of first ball bodies which are uniformly distributed at intervals, and the first ball bodies penetrate through the other end of the chain and are fixedly connected with the chain; the second ball body is provided with a through hole, the chain penetrates through the through hole, a first cavity body which is symmetrical about the axis of the through hole is arranged on the wall of the through hole, the side wall of the first cavity body is rotatably connected with two ends of two rotating shafts, the two rotating shafts are perpendicular to the axis and positioned on two sides of the axis, a plurality of plate bodies are fixedly distributed on the arc surface of each rotating shaft, the plurality of plate bodies are parallel to the rotating shafts, and the end surface far away from the rotating shafts is provided with a first notch;
the control unit comprises a motor, a switch and a controller, wherein the motor is fixed in the second sphere, and an output shaft of the motor is fixedly connected with one end of the rotating shaft; the controller is used for controlling the motor to rotate forwards or backwards; the switch is in signal connection with the controller and is used for outputting a forward rotation signal or a reverse rotation signal to the controller; the motor and the controller are respectively electrically connected with a storage battery, and the storage battery is arranged inside the second sphere.
Preferably, the second ball body is further provided with two vertical first sliding chutes perpendicular to the axis of the through hole, the two first sliding chutes are distributed on two sides of the through hole, the bottom of each first sliding chute is provided with a second cavity parallel to the axis of the through hole, and the second cavity is communicated with the first cavity; a sliding plate is arranged in each first sliding chute, the bottom of the sliding plate is hinged with one end of a connecting rod, the other end of the connecting rod is hinged with a sliding block, the sliding block is connected with one end of a connecting line, and the other end of the connecting line is wound on first notches arranged on the plurality of plate bodies; the slide block is connected with the side wall of the second cavity far away from the first cavity through the elastic piece.
Preferably, a sliding groove is formed in the bottom surface, far away from the through hole, of the second cavity, and the sliding groove is in sliding connection with the sliding block.
Preferably, the plate surface of the sliding plate is parallel to the axis of the through hole.
Preferably, the first notch is semicircular, a second notch is arranged at the bottom of the first notch, and the connecting wire is wound in the second notch.
Preferably, two baffles are arranged on the chain, and the two baffles are fixed on the two first spheres closest to the handle and farthest from the handle.
Preferably, the maximum diameter of the first gap is smaller than the diameter of the first sphere.
Compared with the prior art, the invention has the beneficial effects that:
1. the physical training device for physical education can control the switch to realize the forward and reverse rotation of the motor when a beginner can control the switch, the first notches on the baffles on the two rotating shafts poke the first ball when the motor rotates forwards, the second ball moves away from the handle, the reverse rotation of the motor is opposite, the position of the human body and the rotation center of the second ball can be adjusted by controlling the distance between the second ball and the handle when the beginner rotates reversely, the closer the second ball is to the handle, the closer the rotation center is to the human body, the smaller the centripetal force on the second ball is, the same, the smaller the pulling force on the human body is, the more difficult the human body falls down, the more easily the two forces are kept balanced, when the beginner rotates to the limit speed and is difficult to keep the two forces balanced, the second ball is controlled to move towards the handle, the centripetal force generated by the second ball to the human body is lightened, and the state of the beginner can be adjusted in time, prevent falling down;
2. when the beginner accomplished the training, the spheroidal rotation rate of second too fast can not in time stop, when control second spheroid was removed to being close to the handle direction, the line winding was in the axis of rotation, and the connecting rod promotes the slide and removes to keeping away from the through-hole direction to wear out, can increase the resistance between second spheroid and the air, reduces the spheroidal slew velocity of second with higher speed, prevents that the chain winding from on the human body, leads to the human body to fall down.
Drawings
FIG. 1 is a schematic view of a half-section structure of the present invention;
FIG. 2 is an enlarged partial cross-sectional view of the present invention;
FIG. 3 is a distribution assembly view of the plate body of the present invention;
fig. 4 is a perspective view of the present invention.
Description of reference numerals:
1. the handle, 11, the chain, 12, the first sphere, 2, the second sphere, 21, the through hole, 22, the first cavity, 23, the rotating shaft, 24, the plate body, 25, the first notch, 26, the second notch, 31, the first sliding groove, 32, the second cavity, 33, the sliding plate, 34, the connecting rod, 35, the sliding block, 36, the connecting line and 37, the elastic piece.
Detailed Description
The following detailed description of specific embodiments of the invention is provided, but it should be understood that the scope of the invention is not limited to the specific embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention provides a physical training device for physical education, which is provided with a handle 1 and a chain 11 with one end connected with the handle 1 as shown in figures 1-2-3-4, and is characterized by further comprising: the adjusting device comprises a second ball body 2 and a plurality of first ball bodies 12 which are uniformly distributed at intervals, and the first ball bodies 12 penetrate through the other end of the chain 11 and are fixedly connected with the chain 11; a through hole 21 is formed in the second sphere 2, the chain 11 penetrates through the through hole 21, a first cavity 22 symmetrical about the axis of the through hole 21 is formed in the wall of the through hole 21, the side wall of the first cavity 22 is rotatably connected with two ends of two rotating shafts 23, the two rotating shafts 23 are both perpendicular to the axis and located on two sides of the axis, a plurality of plate bodies 24 are fixedly distributed on the arc surface of each rotating shaft 23, the plurality of plate bodies 24 are parallel to the rotating shafts 23, and a first notch 25 is formed in the end surface far away from the rotating shafts 23; the control unit comprises a motor, a switch and a controller, wherein the motor is fixed inside the second sphere 2, and an output shaft of the motor is fixedly connected with one end of the rotating shaft 23; the controller is used for controlling the motor to rotate forwards or backwards; the switch is in signal connection with the controller and is used for outputting a forward rotation signal or a reverse rotation signal to the controller; the motor and the controller are respectively electrically connected with a storage battery, and the storage battery is arranged inside the second sphere 2.
A single chip microcomputer is selected as a controller, the controller receives a signal and then outputs a motor forward rotation signal, and the motor rotates forward; pressing a down-opening key of the switch to output a reversal signal to the controller, receiving the signal by the controller and then outputting a motor reversal signal, and reversing the motor; the closing key of the push switch does not output any signal to the controller, and the motor stops rotating and keeps the state.
The physical training device for physical education can control the switch to realize the forward and reverse rotation of the motor when a beginner can control the switch, the first notches on the baffles on the two rotating shafts poke the first ball when the motor rotates forwards, the second ball moves away from the handle, the reverse rotation of the motor is opposite, the position of the human body and the rotation center of the second ball can be adjusted by controlling the distance between the second ball and the handle when the beginner rotates reversely, the closer the second ball is to the handle, the closer the rotation center is to the human body, the smaller the centripetal force on the second ball is, the same, the smaller the pulling force on the human body is, the more difficult the human body falls down, the more easily the two forces are kept balanced, when the beginner rotates to the limit speed and is difficult to keep the two forces balanced, the second ball is controlled to move towards the handle, the centripetal force generated by the second ball to the human body is lightened, and the state of the beginner can be adjusted in time, preventing falling down.
Preferably, as shown in fig. 2-3, the second ball 2 is further provided with two vertical first sliding grooves 31 perpendicular to the axis of the through hole 21, the two first sliding grooves 31 are distributed on two sides of the through hole 21, the bottom of each first sliding groove 31 is provided with a second cavity 32 parallel to the axis of the through hole 21, and the second cavity 32 is communicated with the first cavity 22; a sliding plate 33 is arranged in each first sliding chute 31, the bottom of the sliding plate 33 is hinged with one end of a connecting rod 34, the other end of the connecting rod 34 is hinged with a sliding block 35, the sliding block 35 is connected with one end of a connecting wire 36, and the other end of the connecting wire 36 is wound on first gaps 25 arranged on the plurality of plate bodies 24; the slider 35 is connected to the side wall of the second cavity 32 away from the first cavity 22 by an elastic member 37.
When the beginner accomplished the training, the spheroidal rotation rate of second too fast can not in time stop, when control second spheroid was removed to being close to the handle direction, the line winding was in the axis of rotation, and the connecting rod promotes the slide and removes to keeping away from the through-hole direction to wear out, can increase the resistance between second spheroid and the air, reduces the spheroidal slew velocity of second with higher speed, prevents that the chain winding from on the human body, leads to the human body to fall down.
Preferably, the bottom surface of the second cavity 32 away from the through hole 21 is provided with a sliding groove, and the sliding groove is slidably connected with the sliding block 35.
Preferably, the plate surface of the slide plate 33 is parallel to the axis of the through hole 21 as shown in fig. 1-2.
So that the slide plate is subjected to the greatest resistance.
Preferably, as shown in fig. 3, the first notch 25 is semicircular, the bottom of the first notch 25 is provided with a second notch 26, and the connection line 36 is wound in the second notch 26.
The semicircular purpose is to enable the connecting wire to be collected and wound in the second gap, and to avoid the interference between the connecting wire and the first ball body when the connecting wire is wound a lot.
Preferably, two baffles are arranged on the chain 11, which are fixed to the two first spheres 12 closest to the handle 1 and furthest from the handle 1.
The second ball is prevented from slipping off when moving to the two first balls closest to the handle and farthest from the handle.
Preferably, the maximum diameter of the first indentation 25 is smaller than the diameter of the first sphere 12.
When the plate body is prevented from shifting the first sphere, the first sphere passes through the space formed by the first notch, so that the second sphere cannot move.
The physical training device for physical education comprises the following steps:
the handle is held to the training person, and the people drives the hammer throw rotation, realizes through the switch on the control handle that the second spheroid is kept away from the human body and is close to the human body, and then the centripetal force's that human and second spheroid of control received size prevents that the training person from falling and hindering, and when the second spheroid is close to the human body, the second spheroid is worn out to the slide, realizes the spheroidal quick speed reduction of second.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a physical training device for sports education, is equipped with chain (11) that handle (1) and one end are connected with handle (1), its characterized in that still includes:
the adjusting device comprises a second ball body (2) and a plurality of first ball bodies (12) which are uniformly distributed at intervals, wherein the first ball bodies (12) penetrate through the other end of the chain (11) and are fixedly connected with the chain (11); the second sphere (2) is provided with a through hole (21), the chain (11) penetrates through the through hole (21), the wall of the through hole (21) is provided with a first cavity (22) which is symmetrical about the axis of the through hole (21), the side wall of the first cavity (22) is rotatably connected with two ends of two rotating shafts (23), the two rotating shafts (23) are both vertical to the axis and positioned at two sides of the axis, a plurality of plate bodies (24) are fixedly distributed on the arc surface of each rotating shaft (23), the plurality of plate bodies (24) are parallel to the rotating shafts (23), and the end surface far away from the rotating shafts (23) is provided with a first notch (25);
the control unit comprises a motor, a switch and a controller, the motor is fixed in the second sphere (2), and an output shaft of the motor is fixedly connected with one end of the rotating shaft (23); the controller is used for controlling the motor to rotate forwards or backwards; the switch is in signal connection with the controller and is used for outputting a forward rotation signal or a reverse rotation signal to the controller; the motor and the controller are respectively electrically connected with a storage battery, and the storage battery is arranged inside the second sphere (2).
2. The physical training device for sports education as claimed in claim 1, wherein the second sphere (2) is further provided with two vertical first sliding grooves (31) perpendicular to the axis of the through hole (21), the two first sliding grooves (31) are distributed on two sides of the through hole (21), the bottom of each first sliding groove (31) is provided with a second cavity (32) parallel to the axis of the through hole (21), and the second cavity (32) is communicated with the first cavity (22); a sliding plate (33) is arranged in each first sliding chute (31), the bottom of the sliding plate (33) is hinged to one end of a connecting rod (34), the other end of the connecting rod (34) is hinged to a sliding block (35), the sliding block (35) is connected with one end of a connecting line (36), and the other end of the connecting line (36) is wound on first gaps (25) formed in the plurality of plate bodies (24); the slide block (35) is connected with the side wall of the second cavity (32) far away from the first cavity (22) through an elastic piece (37).
3. Physical training device for physical education as claimed in claim 2, characterized in that the second chamber (32) is provided with a sliding groove at the bottom side away from the through hole (21), the sliding groove being slidably connected with the slider (35).
4. Physical training device for sports education as claimed in claim 2, characterized in that the board surface of the slide board (33) is parallel to the axis of the through hole (21).
5. Physical training device for physical education as claimed in claim 1, characterized in that the first notch (25) is semicircular and the bottom of the first notch (25) is provided with a second notch (26) and the connecting wire (36) is wound in the second notch (26).
6. Physical training device for sports education, according to claim 1, characterized in that said chain (11) is provided with two flaps fixed to the two first spheres (12) closest to the handle (1) and furthest from the handle (1).
7. Physical training device for sports education as claimed in claim 1, characterized in that the first gap (25) has a maximum diameter smaller than the diameter of the first sphere (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110919690.0A CN113577730B (en) | 2021-08-11 | 2021-08-11 | Physical training device for physical education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110919690.0A CN113577730B (en) | 2021-08-11 | 2021-08-11 | Physical training device for physical education |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113577730A CN113577730A (en) | 2021-11-02 |
| CN113577730B true CN113577730B (en) | 2022-03-22 |
Family
ID=78257311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110919690.0A Expired - Fee Related CN113577730B (en) | 2021-08-11 | 2021-08-11 | Physical training device for physical education |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113577730B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114028784B (en) * | 2021-11-25 | 2023-01-31 | 深圳先进技术研究院 | Wearable sports biological information monitoring system and method applied to hammer training |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1195798A (en) * | 1967-08-17 | 1970-06-24 | Brian Gaisford Carter White | Apparatus for Ejecting Balls |
| US4471746A (en) * | 1979-03-02 | 1984-09-18 | Shimon Ando | Ball throwing apparatus |
| CN101066499A (en) * | 2007-06-12 | 2007-11-07 | 中国海洋大学 | Hammer centripetal and centrifugal strength trainer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6776742B2 (en) * | 2001-11-29 | 2004-08-17 | Alberto G. Domenge | Handheld exerciser and amusement device, method of exercising therewith |
-
2021
- 2021-08-11 CN CN202110919690.0A patent/CN113577730B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1195798A (en) * | 1967-08-17 | 1970-06-24 | Brian Gaisford Carter White | Apparatus for Ejecting Balls |
| US4471746A (en) * | 1979-03-02 | 1984-09-18 | Shimon Ando | Ball throwing apparatus |
| CN101066499A (en) * | 2007-06-12 | 2007-11-07 | 中国海洋大学 | Hammer centripetal and centrifugal strength trainer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113577730A (en) | 2021-11-02 |
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Granted publication date: 20220322 |
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