RU203583U1 - MAGNETIC FLUID POWER TRAINER - Google Patents

Abstract

The utility model relates to the field of sports simulators and is intended for general physical training and training, in addition, it can be used for therapeutic purposes during the recovery period after injuries. The technical result of the proposed magnetic fluid power trainer is to provide the possibility of changing the training load as in the process of performing one movement and during the execution of successive movements of the same series. The technical result is achieved by installing a power loading unit made in a sealed housing, inside which there is a rod and a piston with an electromagnetic coil. communicating through channels to the subpiston and supra-piston cavities filled with magnetorheological fluid, while the loading unit is configured to be controlled by a personal computer.

Description

The useful model relates to the field of sports simulators and is intended for general physical training and training, in addition, it can be used for therapeutic purposes during the recovery period after injuries. With the help of simulators of this type, you can develop and strengthen the muscles of the legs.

For physical training in mass physical culture and sports, various training devices are used that allow you to train different muscle groups in different modes of muscle contraction. The disadvantage of conventional simulators is the use of only a constant load and the impossibility of its rapid change during the execution of one movement, and during the execution of successive movements of the same series. At the same time, highly effective training modes are well known, which imply a change in the training load both during the execution of one movement, and during the execution of sequential movements of the same series.

The training expediency of using a variable load during one movement is associated with the fact that the force developed by a contracting muscle depends on its length in different people, and the relationship "strength-muscle length" for different muscles of one person can differ significantly. Thus, it is obvious that the use of a variable load, which changes during the execution of a movement in accordance with the physiological characteristics of the trained muscle group, is more effective for a full-fledged physical training.

Attempts to use a training regime in which the external load changes during movement take place in sports practice. So, an exercise bike is known (Patent for invention of the Russian Federation No. 2255782 / VN Chinilov. Publ. 10.07.2005), consisting of a base on supports, a load unit made in the form of a disk-shaped element fixed on an axis in the form of an ellipse with a variable radius and a load element rotatable about the base axis and containing concentrically arranged bushings, between which an elastic element is located.

The eccentric principle can be applied not only to cycling, but also to other types of simulators. However, the disadvantages of this method of programmed load change include the laboriousness of replacing the eccentric, since its shape is selected such that the change in the moment of force is most effective for training a given muscle group.

The closest analogue to the stated proposal is the “Body Solid SLS500” strength trainer designed to perform squats and train the calf muscles while standing (https://www.bodysolid.store/silovye_trenajery_nagrujaemye_diskami/body_solid/ body_solid_golenj_stoya_body_solid_group) with seat bushings on which discs are put on with a hinge attached to the frame.

The disadvantage of this simulator is the inability to create a variable training load both in the process of performing one movement, and during the execution of sequential movements of the same series.

The technical result of the inventive magnetic-fluid power trainer is to provide the possibility of changing the training load both during the execution of one movement and during the execution of successive movements of the same series.

The technical result is achieved in that a power loading unit is installed, made in a sealed housing, inside of which there is a rod and a piston with an electromagnetic coil through channels communicating the subpiston and overpiston cavities filled with magnetorheological fluid, while the load unit is configured to be controlled by a personal computer.

The proposal is illustrated with pictures.

FIG. 1 shows a diagram of the arrangement of nodes on the simulator, where 1 is a fixed platform, 2 is a frame, 3 is a movable platform, a lever 4 with articulated joints 9 is connected to the frame 2, 5 are disks (pancakes), 6 is a power loading unit, including a sealed case 8 and rod 7 controlled by a personal computer 10.

FIG. 2 shows a diagram of the device of the power loading unit 6, where 7 is a rod, 8 is a sealed housing in which a piston 11 with an electromagnetic coil 12 connected to a personal computer 10 is located (see Fig. 1). In the piston 11, through channels 13 are made, communicating the subpiston 14 and above the piston 15 cavities filled with a magnetorheological fluid.

The proposed magnetic fluid power trainer operates as follows.

The athlete takes the starting position in the simulator, standing with his feet on a fixed platform 1, holds a movable platform 3 on his shoulders. Depending on the training tasks, the nature and magnitude of the load are selected by selecting the weight of the disks 5 and forming a training plan in a personal computer 10.

Provision of a change in the nature and magnitude of the load in various positions of the movable platform 3, both during the period of performing one movement (for example, squatting), and during the execution of successive movements of one series, is achieved as follows. When squatting, the reciprocating movement of the movable platform 3 is converted into the translational movement of the rod 7 with the piston 14, which move in the sealed body 8 of the power load unit 6, rigidly fixed to the frame 2. On the piston 11 there is an electromagnetic coil 12, which receives a control signal from a personal computer 10 changing its magnetic field. With an increase in the magnetic field, the electromagnetic coil 12 increases the viscosity of the magnetorheological fluid, which fills the inner space of the power loading unit 6. The increased viscosity of the magnetorheological fluid prevents its free flow, for example, from the above-piston cavity 15 to the sub-piston 14 through the through channels 13 in the piston 11, thus causing an increase loads when straightening the athlete from a sitting position, that is, preventing the movement of the rod 7 upward (see Fig. 2).

In turn, in the case when the control signal from the personal computer 10 forms a smaller magnetic field, the viscosity of the magnetorheological fluid naturally decreases and moves more freely from the sub-piston cavity 14 to the above-piston 15 (and / or in the opposite direction) along the through channels 13 in the piston 11 at the impact of the athlete on the movable platform 3. Free flow of the magnetorheological fluid between the cavities 14 and 15 of the power loading unit causes a decrease in the load along the movement of the rod 7.

The function of holding the movable platform 3 in its original position, as well as the prevention of distortions during the reciprocating movement is provided by the lever 4 pivotally connecting it to the frame 2.

Thus, due to the change in the magnetic field by the electromagnetic coil, there is a fundamental possibility of realizing practically any law of change in the load.

In comparison with the prototype, the proposed magnetic-fluid power trainer has the ability to implement a variable load that changes during the execution of the movement in accordance with the physiological characteristics of the trained muscle group.

Claims (1)

Magnetic-fluid power trainer containing a fixed platform, a movable platform with landing bushings, on which disks are put on, hinged to the frame, characterized in that a power loading unit is installed, made in a sealed housing, inside which there is a rod and a piston with an electromagnetic coil, through channels communicating subpiston and overpiston cavities filled with magnetorheological fluid, while the loading unit is configured to be controlled by a personal computer.

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