CN114681881B - A reset protection device and training method for ski jumping training - Google Patents

Abstract

The invention relates to the technical field of physical training methods and equipment, in particular to a resetting protection device and a training method for ski-jump training of a diving platform. The device comprises: the system comprises a ramp and a first position sensing structure, wherein the first position sensing structure is suitable for being worn on a sportsman; the bracket is arranged on one side of the ramp, a driving mechanism is arranged on the bracket, and a second position sensing structure and a protection rope for tying and hanging athletes during training are arranged on the driving mechanism; and the control mechanism is in signal connection with the first position sensing structure and the second position sensing structure, is suitable for receiving signals sent by the first position sensing structure and the second position sensing structure and controls the driving mechanism to synchronously move when the athlete slides along the ramp. The device and the training method can eliminate the sliding resistance of the driving mechanism to the athlete in the gliding process of the athlete, better simulate the real free gliding state and improve the training effect.

Description

A reset protection device and training method for ski jumping training

technical field

The invention relates to the technical field of sports training methods and equipment, in particular to a reset protection device and training method for ski jumping training.

Background technique

In ski jumping, the complete technical action can be divided into four parts: assisted skiing, take-off, air flight and landing. Among them, having good take-off technology and air flight technology is the key to determining the outcome of the competition. Lay a good foundation for the next air flight, so take-off training is particularly important in ski jumping.

Traditional purely mechanical training and protection device, when the athlete accelerates down the slope, the track car is pulled by the protection rope and moves forward with the athlete. In addition to the protection, the track car also exerts sliding resistance on the athlete, so that the athlete cannot Complete the training in an environment close to the real free slide, which will affect the training effect.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to overcome the accompanying resistance of the purely mechanical take-off training device in the prior art when the athlete slides down, and cannot truly simulate the free slide environment, resulting in the defect that the training authenticity is affected. Therefore, a reset protection device and a training method for ski jumping training for simulating a real slide and improving the training effect are provided.

In order to achieve the above object, the technical scheme that the present invention takes is:

A reset protection device for ski jumping training, comprising: a ramp and a first position sensing structure, the first position sensing structure is suitable for wearing on athletes; a bracket, arranged on one side of the ramp, The bracket is provided with a driving mechanism, and the driving mechanism is provided with a second position sensing structure and a protective rope for hanging athletes during training; the control mechanism is connected with the first position sensing structure and the second position sensing structure The signal connection is suitable for receiving the signals sent by the first position sensing structure and the second position sensing structure, and controlling the driving mechanism to move synchronously when the athlete slides along the ramp.

Optionally, the driving mechanism is also provided with a winding mechanism, the protection rope is wound on the winding mechanism, and has a first state where the athlete is just free from tension when the athlete is training, and when the athlete finishes In a training session, when it is necessary to return to the starting point of the slope, it is wound to the second state of pulling the athlete.

Optionally, the winding mechanism includes a bobbin fixed on the driving mechanism, a first motor and a first brake connected to the bobbin.

Optionally, the driving mechanism includes a vehicle body, a second motor and a second brake connected to the vehicle body.

Optionally, both the first position sensing structure and the second position sensing structure are infrared range finders.

A method for ski jumping training, comprising the following steps:

When the athlete slides along the ramp, the first position information and the second position information of the athlete and the driving mechanism are monitored in real time, and the motion state of the driving mechanism is adjusted according to the obtained first position information, second position information and the angle of the ramp , so that it moves synchronously with the athlete.

Optionally, the first position information includes a first horizontal position, a first horizontal velocity, and a first horizontal acceleration, and the second position information includes a second horizontal position, a second horizontal velocity, and a second horizontal acceleration.

Optionally, by changing the acceleration of the driving mechanism, it keeps moving synchronously with the athlete.

Optionally, during training, the length of the protective rope on the control drive mechanism is extended to the first state where the athlete is just free from tension, and when the athlete completes a training session and needs to return to the starting point of the ramp, retract to A second state where the athlete is pulled.

Optionally, before the training starts, moving the athlete to the starting point of the ramp, so that the protection rope is wound to the second state, and storing the record; and moving the athlete to the end of the ramp, so that the protection rope is stretched to the second state. A state, and store records.

The technical solution of the present invention has the following advantages:

1. A kind of device that is used for ski jumping training that the present invention provides, by arranging the first position sensor and the second position sensor that are connected with control mechanism signal, obtain the position information of athlete and drive mechanism in real time, and according to described position The information controls the motion state of the driving mechanism to realize its synchronous movement with the athletes, thereby eliminating the sliding resistance of the driving mechanism to the athletes, so that they can complete the sliding and take-off training only under the action of gravity and the support of the slope, simulating the real competition slope Sliding state, improve training realism.

2. A device for ski jumping training provided by the present invention, by setting the length of the protective rope on the winding mechanism, the athletes are not pulled by the protective rope during the sliding and training, and the training environment is closer to In the real situation, the reasonable setting of the length of the protection rope and the driving mechanism no longer follow the movement of the athlete after take-off and brake according to the program, so that the athlete is not only pulled by the protection rope to hang in the air after take-off, preventing the athlete from falling to the ground, but also can experience flying in the air After a training session, the athletes can directly return to the starting point of the ramp under the action of the driving mechanism to prepare for the next training without using manpower, saving the physical strength of athletes and coaches, reducing unnecessary physical exertion, and improving training efficiency.

3. The training method for ski jumping training provided by the present invention can carry out personalized parameter setting for slopes of different heights and lengths and athletes of different heights, and has a wide range of applications.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Fig. 1 is the structural representation of driving mechanism of the present invention;

Fig. 2 is a schematic diagram of the layout of the reset protection device used for ski jumping training;

Reference signs: 1. ramp; 2. first position sensing structure; 3. first frame body; 4. second frame body; 5. second position sensing structure; 6. power supply equipment; 7. guardrail; 8. Car body; 9, second motor; 10, second brake; 11, wheel; 12, first motor; 13, first brake; 14, bobbin frame; 15, bobbin; 16, protection rope; 17, cable; 18 , Communication module.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

The reset protection device for ski jumping training shown in Figures 1 and 2 includes: a ramp 1, a support, a driving mechanism and a control mechanism.

The ramp 1 has a certain ramp angle, which can help athletes wearing the first position sensing structure 2 to slide on its surface, and the first position sensing structure 2 can be an infrared range finder. Both sides of the ramp 1 are provided with guardrails 7 along the sliding direction, and the guardrails 7 have the functions of protection and pulling positioning.

The support includes a vertically arranged first frame body 3 and a second frame body 4 vertically arranged at the top of the first frame body 3, the second frame body 4 has a certain height, and the second frame body 4 is provided with a The slide rail for the horizontal movement of the mechanism. The first frame body 3 and the second frame body 4 should have sufficient rigidity, strength and stability, and can withstand the self-weight of all equipment on it during operation, the changing load of the lifting athlete, the athlete passing through the protective rope to the slide rail after vacating, and The maximum possible impact of the bracket, and ensure that there is sufficient safety margin. The first frame body 3 and the second frame body 4 and all equipment thereon should not block the athlete's training activities and swing during deceleration.

The driving mechanism includes a vehicle body 8 , a second motor 9 connected to the vehicle body 8 and a second brake 10 , and the second brake 10 is arranged on a wheel 11 of the vehicle body 8 . The second motor 9 and the second brake 10 are connected to the power supply device 6 through a cable 17 . The second motor 9 should have sufficient power and can follow the athlete when the athlete slides with the fastest acceleration; the second brake 10 should have enough braking force to make the car body 8 stop at the shortest distance to prevent the end of the collision track; The rail should have enough grip with the wheel 11 to ensure that the vehicle does not skid during acceleration and braking when the athlete is suspended. Further, the vehicle body 8 is provided with a second position sensing structure 5, and the second position sensing structure 5 is an infrared range finder. The car body 8 of the drive mechanism is provided with a winding mechanism, and the winding mechanism includes a bobbin 15, a bobbin holder 14 for fixing the bobbin 15, a first brake 13 and a first motor that are arranged on the bobbin 15 12. The bobbin 15 is wound with a protective rope 16 for hanging the athlete, the bobbin 15 is connected to the output shaft of the first motor 12, and the first motor 12 cooperates with the first brake 13 to realize the lifting movement of the athlete . The first motor 12 and the first brake 13 are connected to the power supply device 6 through a cable 17 . The power supply equipment 6 should be well insulated from the support to ensure safety. The overall center of gravity of the car body 8 under the state of hanging the athletes should be as close as possible to the middle of the two horizontal slide rails, so as to ensure that the rail wheels 11 on both sides and the slide rails are more balanced in stress. The first motor 12 is a lifting motor, and the first brake 13 should have sufficient braking force to ensure that after the athlete takes off, the protective rope will not loosen so that the athlete touches the ground.

The control mechanism is connected with the signal of the first position sensing structure 2 and the second position sensing structure 5, and obtains the positions of the first position sensing structure 2 and the second position sensing structure 5 through a set communication mode, for example, wireless microwave communication For information, a communication module 18 needs to be installed on the drive mechanism, and the communication module 18 is connected with the first position sensing structure 2, the second position sensing structure 5 and the control mechanism to complete information collection and transmission. The control mechanism includes: a man-machine monitoring component, a central control component, a communication component, and a display component. The human-machine monitoring component can set the vehicle body motion parameters and issue operation instructions through the touch screen HMI. The central control component receives the operation instructions and combines the position information transmitted by the communication module 18 obtained by the communication component to control the driving mechanism when the athlete slides along the ramp 1. The two move synchronously, and the display assembly displays the current movement parameters of the car body 8, as well as the indication of the starting light and the indication of the status light.

A method for ski jumping training, comprising the following steps:

Firstly, after turning on the power-on button, the system will perform a self-check. If there is any abnormality, the power-on light will flash in a certain pattern, indicating the abnormal location, and remind the staff to overhaul; if normal, turn on the power-on light and load the default parameters (ramp height, slope Road horizontal distance, braking distance, first motor 12 lifting speed, car body 8 reset speed, bobbin 15 radius).

Then the operator lowers the protective rope 16 and is tied to the hanging point behind the athlete, and the remote control car body 8 moves the athlete to the starting point of the ramp 1. At this time, the adjustment car body 8 is positioned directly above the athlete, and the first motor 12 is adjusted to release the protective rope 16, and the athlete Sit down gradually with the help of the guardrail, so that the protection rope 16 is wound to the second state of pulling. The judgment standard of the second state is: after the athlete sits down, the protection rope is stretched from being stretched to bending naturally without force, and the protection rope 16 cannot be felt Pull, and store and record the length of the protection rope 16 at this time. The remote control car body 8 moves the athlete to the end of the ramp 1, so that the athlete holds the guardrail and maintains a standing posture at the take-off point. At this time, the car body 8 is adjusted to be directly above the athlete, and the first motor 12 is adjusted to release the protective rope 16, so that the athlete can move on The take-off point squats down gradually with the help of the guardrail to reach the squatting position when taking off, so that the protection rope 16 is wound to the first state that is just free from tension. The judgment standard of the first state is: when the athlete reaches the take-off and squat position, he feels that the force on the protection rope is relatively small , keep still on the slope mainly by the force of the guardrail, and store and record the length of the protection rope 16 at this time.

Then the operator modifies the default parameters on the touch screen HMI and saves them for confirmation, otherwise the drive mechanism cannot be started. When the operating conditions are reached, the operator starts the equipment to run, and the status light changes from red to yellow and flashes. At this time, the system controls the first motor 12 to put the protection rope 16 to the first state. After the rope is released, the first brake 13 works. The first motor 12 is braked and locked, the status light is green, and the athlete can start to slide down the ramp 1. When the athlete slides along the ramp 1, the real-time distance change between the athlete and the starting point is measured by the first position sensing structure 2, so as to obtain the first position information composed of the first horizontal position, the first horizontal speed and the first horizontal acceleration; The real-time distance change between the vehicle body 8 and the first frame body 3 is measured by the second position sensing structure 5 to obtain the second position information composed of the second horizontal position, the second horizontal velocity and the second horizontal acceleration. The control mechanism obtains the first position information and the second position information through wireless microwave communication, and by changing the acceleration of the drive mechanism, it keeps moving synchronously with the athlete, that is, the car body 8 follows the movement right above the athlete.

After the athlete takes off from the ramp 1, the first position sensing structure 2 will not receive data, and the second motor 9 brakes the car body 8 through the second brake 10, and the athlete performs aerial movement training at a predetermined position. After the athlete has come to a complete stop, the operator presses the starting device to reset, and the status light changes from red to yellow and flashes. At this time, the system controls the first motor 12 to retract the protection rope 16 to the second state. After reaching the second state, the first The motor 12 brakes and locks the spool 15 through the first brake 13, and the status light is a constant yellow light, and the control mechanism controls the car body 8 to return to the starting point according to the set parameters, and the status light becomes a constant red light.

If stop training then press stop button after, can manually control car body 8 and protection rope 16 and move down to the ground to athlete, equipment is reset and braked and shut down afterwards.

As an alternative embodiment, the first position sensing structure 2 can be placed on the ramp 1 .

As an alternative implementation, the second position sensing structure 5 can be placed on the second frame 4 .

As an alternative embodiment, the first position sensing structure 2 and the second position sensing structure 5 may be laser range finders or ultrasonic range finders.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. However, the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (9)

1. A device for ski jumping training, characterized in that it comprises: A ramp (1) and a first position sensing structure (2), the first position sensing structure (2) being suitable for being worn by an athlete; The bracket is arranged on one side of the ramp (1), the bracket is provided with a driving mechanism, and the driving mechanism is provided with a second position sensing structure (5) and a protective rope for hanging athletes during training (16); The control mechanism is in signal connection with the first position sensing structure (2) and the second position sensing structure (5), and is suitable for receiving the information sent by the first position sensing structure (2) and the second position sensing structure (5) signal, and control the drive mechanism to move synchronously when the athlete slides along the ramp (1); The driving mechanism is also provided with a winding mechanism, and the protection rope (16) is wound on the winding mechanism, and has a first state in which the athlete is just free from tension when the athlete is training, and when the athlete completes a For training, when it is necessary to return to the starting point of the ramp (1), it is wound to the second state where the athlete is pulled. 2. The device for ski jumping training according to claim 1, characterized in that, the winding mechanism comprises a bobbin (15) fixed on the drive mechanism and a bobbin connected with the bobbin (15). The first motor (12), the first brake (13). 3. according to the device for ski jumping training described in any one of claim 1-2, it is characterized in that, described driving mechanism comprises car body (8) and the second that is connected with described car body (8). Motor (9), second brake (10). 4. according to the device for ski jumping training described in any one of claim 1-2, it is characterized in that, described first position sensing structure (2) and second position sensing structure (5) are infrared measurement Tachymeter. 5. A method for ski jumping training, characterized in that, utilizing the device according to any one of claims 1-4 to train, comprising the following steps: When the athlete slides along the ramp, the first position information and the second position information of the athlete and the driving mechanism are monitored in real time, and the motion state of the driving mechanism is adjusted according to the obtained first position information, second position information and the angle of the ramp , so that it moves synchronously with the athlete. 6. the method for ski jumping training according to claim 5, is characterized in that, described first position information comprises first horizontal position, first horizontal velocity and first horizontal acceleration, and described second position information Including the second horizontal position, the second horizontal velocity and the second horizontal acceleration. 7. The method for ski jumping training according to claim 6, characterized in that, by changing the acceleration of the driving mechanism, it keeps moving synchronously with the athlete. 8. according to the method for ski jumping training described in any one of claim 5-7, it is characterized in that, also comprise when training, the length of the protection rope on the control driving mechanism is stretched to make athlete just not suffer from The first state of pulling force, and when the athlete completes a training session and needs to return to the starting point of the slope, retracts to the second state of pulling the athlete. 9. The method for ski jumping training according to claim 8, further comprising, before the training begins, moving the athlete to the starting point of the slope, so that the protection rope is wound to the second state, and storing the record ; and the athlete is moved to the end of the ramp, so that the protection rope is stretched to the first state, and the record is stored.

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