CN113975767B - Hammer ball movement multidimensional simulation training device free of site limitation - Google Patents

Hammer ball movement multidimensional simulation training device free of site limitation Download PDF

Info

Publication number
CN113975767B
CN113975767B CN202111153518.5A CN202111153518A CN113975767B CN 113975767 B CN113975767 B CN 113975767B CN 202111153518 A CN202111153518 A CN 202111153518A CN 113975767 B CN113975767 B CN 113975767B
Authority
CN
China
Prior art keywords
support ring
longitudinal
support
hammer
adjuster
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202111153518.5A
Other languages
Chinese (zh)
Other versions
CN113975767A (en
Inventor
陈立华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian Minzu University
Original Assignee
Dalian Minzu University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dalian Minzu University filed Critical Dalian Minzu University
Priority to CN202111153518.5A priority Critical patent/CN113975767B/en
Publication of CN113975767A publication Critical patent/CN113975767A/en
Application granted granted Critical
Publication of CN113975767B publication Critical patent/CN113975767B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00Training appliances or apparatus for special sports
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0605Decision makers and devices using detection means facilitating arbitration
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B71/0622Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B71/0622Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
    • A63B2071/0625Emitting sound, noise or music
    • A63B2071/063Spoken or verbal instructions
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/80Special sensors, transducers or devices therefor
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/80Special sensors, transducers or devices therefor
    • A63B2220/803Motion sensors
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/80Special sensors, transducers or devices therefor
    • A63B2220/83Special sensors, transducers or devices therefor characterised by the position of the sensor
    • A63B2220/833Sensors arranged on the exercise apparatus or sports implement

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention relates to a field-free multi-dimensional simulation training device for chain ball movement, which belongs to the technical field of multi-dimensional simulation training and consists of an integral support column and a chain ball movement control function disc, wherein a base is fixed underground, a longitudinal telescopic support column is fixed on the base through a tray fastener, the shape of the support beam is a right triangle, two right-angle sides of the support beam respectively connect the side surface of the longitudinal telescopic support column with the plane of the tray fastener, a support ring longitudinal adjuster is arranged on the side surface of the upper end of the longitudinal telescopic support column, a support ring longitudinal adjuster is arranged in the axial direction of the longitudinal telescopic support column, the lower end of the support ring longitudinal adjuster is fixed on the ground, the upper end of the support ring longitudinal adjuster is connected with a support ring transverse adjuster through a support ring rotation angle adjuster, and the support ring transverse adjuster is arranged on the side surface of the longitudinal telescopic support column.

Description

Hammer ball movement multidimensional simulation training device free of site limitation
Technical Field
The invention belongs to the technical field of multidimensional simulation training, and particularly relates to a hammer throw movement multidimensional simulation training device which is not limited by a field.
Background
Chain ball throwing is at the earliest a recreational game for miners and craftsmen in scotch and irish throwing hammers. The game has the characteristics of testing the strength, skill and mind of the competitor, and has the characteristics of simple competition appliance, strong competitive performance, obvious competition result and the like, so the game is rapidly popularized worldwide. In 1900, paris Olympic Games listed as a formal game item. In 2000, sydney Olympic Games listed the female hammer into a formal game.
However, when the sports are exercised by athletes in various countries for competition or fitness, the sports are often limited by factors such as places, weather, equipment and the like, especially the requirements of the hammer throw places are relatively high, hundreds of flat hammer throw places are required to be prepared besides hammer throw and steel wire protection cages, and anyone cannot enter the hammer throw places, so that the requirements of large places and personnel activities are difficult to realize for large and medium cities with relatively tight sports training resources, and therefore, the daily exercise or test activities of hammer throwers or lovers are greatly limited.
Disclosure of Invention
In order to solve the problem of hammer ball movement limited by factors such as places, weather and the like, the invention provides: the technical scheme of the hammer motion multidimensional simulation training device which is not limited by the field is as follows: the chain ball motion control function disc comprises a chain ball motion control disc, an electromagnetic accelerator, a screw cap outlet, an oil filling hole and a chain ball, wherein the base is fixed underground, the longitudinal telescopic support column is fixed on the base through the tray fastener, the shape of the support beam is a right triangle, two right-angle sides of the support beam are respectively connected with the side surface of the longitudinal telescopic support column and the plane of the tray fastener, the support ring longitudinal adjuster is arranged on the side surface of the upper end of the longitudinal telescopic support column, the support ring longitudinal adjuster is arranged in the axial direction of the longitudinal telescopic support column, the lower end of the support ring longitudinal adjuster is fixed on the ground, the upper end of the support ring longitudinal adjuster is connected with the support ring transverse adjuster through the support ring rotation angle adjuster, the support ring transverse adjuster is arranged on the side surface of the longitudinal telescopic support column, the two support ring transverse adjusters are connected with the chain ball filling hole through the ball motion control cap, and the chain ball is arranged on the outer periphery of the chain ball motion control disc; the microcontroller is disposed inside the longitudinal telescopic strut.
Further, the height sensor is arranged inside the longitudinal telescopic support.
Further, the device also comprises a gravity center detection plate, wherein the gravity center detection plate is arranged on the middle ground of the two longitudinal telescopic struts.
Further, the number of support ring longitudinal adjusters is two.
Further, the number of support ring lateral adjusters is two.
Further, the number of the support ring rotation angle adjusters is two.
Further, the diameter of the screw cap outlet is larger than the diameter of the chain ball.
Further, a screw cap is arranged on the screw cap outlet.
Further, the diameter of the oil filling hole is smaller than that of the chain ball.
Further, the hammer motion control disc is in a circular ring shape.
The beneficial effects of the invention are as follows:
the invention has less environmental requirements, small occupied area, flexible application and simple operation.
The running track of the hammer ball can be simulated to a large extent, and the rotary force and skill control of the athlete are ensured to be highly similar to that of a real match.
The invention provides a more practical, simulated and efficient training environment for hammer ball athletes and fans.
The device has low manufacturing cost, simple installation and low environmental requirement, and provides a training and testing environment for the hammer ball player with safety, high efficiency and high simulation degree.
Drawings
FIG. 1 is a schematic diagram of a field-independent, multi-dimensional simulated training device for hammer motion;
reference numerals in the drawings are as follows: the device comprises a base, a support beam, a tray fastener, a longitudinal telescopic strut, a support ring longitudinal adjuster, a support ring transverse adjuster, a support ring rotation angle adjuster, a height sensor, a gravity center detection plate, a chain ball motion control plate, an electromagnetic accelerator, a screw cap outlet and an oil filling hole, wherein the base is arranged at the bottom of the base, the support beam is arranged at the bottom of the base, the tray fastener is arranged at the bottom of the base, the support ring is arranged at the top of the support ring, the support ring longitudinal adjuster is arranged at the top of the support ring, the support ring rotation angle adjuster is arranged at the top of the support ring, the.
Detailed Description
A field-independent multi-dimensional simulation training apparatus for ball game is further described below with reference to FIG. 1.
The invention is composed of an integral support column and a hammer motion control function disc, wherein the integral support column comprises a base 1, a support beam 2, a tray fastener 3, a longitudinal telescopic support column 4, a support ring longitudinal adjuster 5, a support ring transverse adjuster 6, a support ring rotation angle adjuster 7 and a microcontroller, and the hammer motion control function disc comprises a hammer motion control disc 11, an electromagnetic accelerator 12, a screw cap outlet 13, an oil filling hole 14 and a hammer.
The main function of the integral support column is to fix the device with the ground, provide support for the hammer motion control function disc and provide bidirectional stable thrust along the column up and down for the hammer motion control function disc.
The function disc for controlling the movement of the hammer ball has the main functions of ensuring that the hammer ball can move around the heart at high speed and low friction under the action of centripetal force, simulating the longitudinal movement of the hammer ball before throwing, ensuring that the hammer ball does not fly out of the function disc for controlling the movement of the hammer ball at any speed or state and ensuring the safety of personnel in a training place; the invention provides friction compensation for the hammer ball by utilizing an electromagnetic acceleration method, measures the height of an athlete to set the lifting speed of the hammer ball, adjusts and controls the inclination angle of the central shaft of the hammer ball motion control function disc to simulate the acceleration and the hand-off process of the hammer ball; the chain ball and the device lubricating liquid can be replaced.
The base 1 is fixed underground, the longitudinal telescopic support column 4 is fixed on the base 1 through the tray fastening piece 3, the shape of the support beam 2 is a right triangle, two right-angle sides of the support beam 2 are used for connecting the side face of the longitudinal telescopic support column 4 with the plane of the tray fastening piece 3 respectively, the support ring longitudinal adjuster 5 is arranged on the side face of the upper end of the longitudinal telescopic support column 4, the support ring longitudinal adjuster 5 is arranged in the axial direction of the longitudinal telescopic support column 4, the lower end of the support ring longitudinal adjuster 5 is fixed on the ground, the upper end of the support ring longitudinal adjuster 5 is connected with the support ring transverse adjuster 6 through the support ring rotation angle adjuster 7, the support ring transverse adjuster 6 is arranged on the side face of the longitudinal telescopic support column 4, the two support ring transverse adjusters 6 are connected through the chain ball motion control disc 11, the electromagnetic accelerator 12 is arranged on the periphery of the chain ball motion control disc 11, and the screw cap outlet 13 and the oil hole 14 are arranged on the chain ball motion control disc 11.
The hammer moves inside the hammer motion control disc 11; the hammer ball is a standard male or female hammer ball for games.
The microcontroller is arranged inside the longitudinal telescopic strut 4 to control the various functional components.
The chain ball movement control disc 11 is made of steel materials, is connected with the supporting ring transverse adjusters 6 on two sides, can provide movement line limitation for the movement of the chain ball around the center, and measures the release speed of the chain ball. The electromagnetic accelerator 12 provides friction compensation for the sprocket using the principle of electromagnetic acceleration.
The height sensor 8 is arranged inside the longitudinal telescopic support 4. The height sensor 8, the laser detects the height of the athlete to the shooting height sensor 8 to set the starting height, the accelerating height and the hand-off height of the hammer training.
The device also comprises a gravity center detection plate 9, wherein the gravity center detection plate 9 is arranged on the middle ground of the two longitudinal telescopic struts 4. The bar-shaped gravity sensing sensor is arranged in the gravity center detecting plate 9 and used for detecting the gravity center of the athlete, so that the position of the supporting ring transverse regulator 6 is regulated to enable the hammer to rotate around the center more accurately and with smaller friction force in the hammer motion control function disc. The center of the plate surface is coated with a circular ring with a standard diameter of 2.135 meters.
Wherein the number of support ring longitudinal adjusters 5 is two.
Wherein the number of support ring lateral adjusters 6 is two.
Wherein the number of the support ring rotation angle adjusters 7 is two.
Wherein the diameter of the screw cap outlet 13 is larger than the diameter of the chain ball.
Wherein, a screw cap is arranged on the screw cap outlet 13. The spin cap outlet 13 can be used to replace a male or female hammer.
Wherein the diameter of the oil filling hole 14 is smaller than the diameter of the chain ball. A softener may be injected into the motion control function plate through the oil injection hole 14 to reduce friction between the hammer and the hammer motion control plate.
Wherein, the chain ball motion control disc 11 is in a ring shape.
The base 1 can be installed indoors or outdoors, adopts multi-stage lower thick upper small steel materials, is connected with the longitudinal telescopic support posts 4, is buried in corresponding underground cement, and can provide stable support for the whole device after the cement is fastened.
The supporting beam 2 is made of high-strength rigid materials, and is connected with the longitudinal telescopic support column 4 and the base 1, so that safer transverse and longitudinal support can be provided for the longitudinal telescopic support column 4.
The tray fastener 3, the vertical telescopic strut 4 is fixed on the base (1) through the tray fastener 3, and the tray fastener 3 is a reinsurance device for fixing the vertical telescopic strut 4 with the ground.
The longitudinal telescopic support column 4 is made of high-strength rigid materials, the lower end of the longitudinal telescopic support column 4 is connected with the base 1, the upper end of the longitudinal telescopic support column 4 is connected with the support ring longitudinal adjuster 5, stable support is provided for the whole device, and meanwhile the chain ball motion control function disc can move up and down along the main body under the action of the support ring longitudinal adjuster 5.
The lower column of the support ring longitudinal adjuster 5 is fixed with the ground, and the upper column is connected with the hammer motion control disc, so that the bidirectional motion of the motion control function disc can be adjusted in a bidirectional longitudinal mode.
One end of the support ring transverse adjuster 6 is connected with the hammer motion control disc, and the other end is connected with the longitudinal telescopic support column 4, so that the bidirectional motion of the motion control function disc can be transversely adjusted.
One end of the support ring rotation angle adjuster 7 is mounted on the support ring longitudinal adjuster 5, and the other end is mounted on the support ring longitudinal adjuster 5 to move together with the support ring longitudinal adjuster 5. The supporting ring rotation angle regulator 7 can vertically and longitudinally move in a bidirectional way, and the middle point inclination angle of the functional disc is controlled by utilizing the lever principle.
The application method of the invention is as follows:
before the teleoperator exercises, the multi-dimensional simulation training device for the hammer sports is powered, and the microcontroller automatically detects functions of all parts, if normal, the functions are prompted by music, and if abnormal, the functions are prompted by alarm sounds. Initially, the vertical regulator 5 of the support ring pushes the hammer motion control disc to the uppermost position, the athlete enters the gravity center detection plate 9, and the height sensor 8 in the vertical telescopic support column 4 detects the height of the athlete, so that the starting height, the accelerating height and the hand-off height of the hammer motion control disc 11 are automatically set. The ball motion control dial 11 is lowered to a starting height and the player grasps one end handle of the stud ball and rotates the ball about the center. The player's center of gravity will shift laterally in the middle and front of the acceleration process, and the center of gravity sensing board 9 will sense this data in real time, and the support ring lateral adjuster 6 adjusts the lateral position of the hammer motion control panel 11 based on this data. The electromagnetic accelerator 12 provides electromagnetic compensation for the sprocket according to internal friction. In the middle and later stages of the acceleration process, the athlete can raise the lifting angle of the ball movement surface, and the gravity sensor in the ball movement control panel 11 calculates the pressure data and converts the pressure data into the lifting speed and the lifting position of the support ring rotation angle regulator 7. When the athlete thinks that the athlete can take off hands, the chain ball can strike the deceleration strip in the outer edge of the chain ball motion control disc 11, part of steel wires connected with the chain ball are received in the deceleration strip, the chain ball handle strikes the inner ring closing-in of the chain ball motion control disc 11, and the speed sensor simultaneously measures the striking speed of the chain ball. The design of the inner ring closing-in of the chain ball motion control disc 11 can ensure that the chain ball cannot fly out of the motion control disc in any state. Meanwhile, the system can automatically display the hand-out speed and the hand-out angle of the hammer, the hammer is measured by the stay ring rotation angle regulator, and after the process is finished, the hammer motion control panel 11 rewards to the starting height, and the athlete is ready to throw again. If the athlete steps out of the circle of the gravity center detection plate 9 during the throwing process, the device can sound and light prompt the violation of the throwing process and display relevant data. The screw cap outlet 13 is positioned above the hammer ball motion control disc 11, the diameter of the screw cap structure is larger than that of a standard hammer ball, and the screw cap structure can be used for replacing the hammer ball for men or women. After 15-20 days of operation, maintenance personnel can pour softener into the motion control function disc through the oil filling hole 14 so as to reduce friction between the hammer and the hammer motion control disc 11. The device has low cost, simple installation and low environmental requirement, is safe and efficient, and provides a training and testing environment for the hammer ball athlete with high simulation degree.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution and the concept of the present invention, and should be covered by the scope of the present invention.

Claims (1)

1. The multi-dimensional simulation training device for the movement of the hammer without being limited by a field is characterized by comprising two parts of two groups of integral support columns and a hammer movement control function disc, wherein the integral support columns comprise a base (1), a support beam (2), a tray fastener (3), a longitudinal telescopic support column (4), a support ring longitudinal adjuster (5), a support ring transverse adjuster (6), a support ring rotation angle adjuster (7) and a microcontroller, the hammer movement control function disc comprises the hammer movement control disc (11), an electromagnetic accelerator (12), a screw cap outlet (13), an oil filling hole (14) and the hammer, the base (1) is fixed on the ground, the longitudinal telescopic support column (4) is fixed on the base (1) through the tray fastener (3), the shape of the support beam (2) is a right triangle, two right-angle sides of the support beam (2) connect the side surface of the longitudinal telescopic support column (4) with the plane of the tray fastener (3), the support ring longitudinal adjuster (5) is connected with the side surface of the upper end of the longitudinal telescopic support column (4) and is fixed on the lower end of the longitudinal telescopic support ring (5) in the direction of the longitudinal support ring (4), the upper ends of the support ring longitudinal adjusters (5) are connected with the support ring transverse adjusters (6) through the support ring rotation angle adjusters (7), the support ring transverse adjusters (6) are arranged on the side surfaces of the longitudinal telescopic support posts (4), the support ring transverse adjusters (6) in the two groups of integral support posts are respectively connected with the chain ball motion control disc (11), the electromagnetic accelerator (12) is arranged on the periphery of the chain ball motion control disc (11), the chain ball motion control disc (11) is provided with a screw cap outlet (13) and an oil filling hole (14), and the chain ball moves in the chain ball motion control disc (11); the microcontroller is arranged inside the longitudinal telescopic support column (4); the device also comprises a height sensor (8), wherein the height sensor (8) is arranged inside the longitudinal telescopic support column (4); the device also comprises a gravity center detection plate (9), wherein the gravity center detection plate (9) is arranged on the middle ground of the two longitudinal telescopic struts (4); the diameter of the screw cap outlet (13) is larger than that of the chain ball; a screw cap is arranged on the screw cap outlet (13); the diameter of the oil filling hole (14) is smaller than that of the chain ball; the chain ball movement control disc (11) is in a circular ring shape.
CN202111153518.5A 2021-09-29 2021-09-29 Hammer ball movement multidimensional simulation training device free of site limitation Active CN113975767B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111153518.5A CN113975767B (en) 2021-09-29 2021-09-29 Hammer ball movement multidimensional simulation training device free of site limitation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111153518.5A CN113975767B (en) 2021-09-29 2021-09-29 Hammer ball movement multidimensional simulation training device free of site limitation

Publications (2)

Publication Number Publication Date
CN113975767A CN113975767A (en) 2022-01-28
CN113975767B true CN113975767B (en) 2023-05-16

Family

ID=79737288

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111153518.5A Active CN113975767B (en) 2021-09-29 2021-09-29 Hammer ball movement multidimensional simulation training device free of site limitation

Country Status (1)

Country Link
CN (1) CN113975767B (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100393380C (en) * 2006-06-30 2008-06-11 中国海洋大学 Simulated training device for discus throwing
CN2928167Y (en) * 2006-06-30 2007-08-01 中国海洋大学 Analoque training device for discus throw
TN2016000073A1 (en) * 2016-02-24 2017-07-05 Agrebi Brahim Device for strengthening the shoulder and developing the power of the upper limbs in throwing sports.
CN211986978U (en) * 2020-03-17 2020-11-24 西安交通大学城市学院 Throwing technique exerciser
CN212016672U (en) * 2020-03-20 2020-11-27 湖南财政经济学院 Hammer throw trainer

Also Published As

Publication number Publication date
CN113975767A (en) 2022-01-28

Similar Documents

Publication Publication Date Title
US20140066267A1 (en) Boxing simulating exerciser
CN105377378A (en) Two-environment game play system
CN113975767B (en) Hammer ball movement multidimensional simulation training device free of site limitation
CN105288976A (en) Exercise training equipment
CN201182884Y (en) Device for training basketball pass
CN102371059A (en) Target-type golf course
CN209254071U (en) A kind of heavy games fight strength, speed testing device
CN106730728A (en) High intensity connects biography football training system
CN102319512B (en) Rugby throwing collimator
WO2019002896A1 (en) Ball playfield for practising ball games
KR200303049Y1 (en) The moving golf land
CN216222735U (en) Protection towed ride skiing simulation trainer
CN113181613B (en) Sports teaching is with dribbling shooting training system
CN114191796A (en) Training device is assisted with high-efficient volleyball to sports
CN202427132U (en) Slow pitch softball penalty device
CN202207447U (en) Center punch for throwing of American football
CN202070125U (en) Recreational sports device
RU62338U1 (en) SPORTS SIMULATOR
US2041678A (en) Golf game
CN202876293U (en) Circular platform for gongfu jumping training
RU179198U1 (en) TRAINING PLATFORM
CN212680027U (en) Sports type motion simulation trainer
CN219896978U (en) Tennis ball serving and throwing direction control device
CN210751195U (en) Taekwondo foot target device for balance training
CN201912738U (en) Target golf course

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant