CN112439158A - Control method of strength type fitness equipment - Google Patents
Control method of strength type fitness equipment Download PDFInfo
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- CN112439158A CN112439158A CN201910837791.6A CN201910837791A CN112439158A CN 112439158 A CN112439158 A CN 112439158A CN 201910837791 A CN201910837791 A CN 201910837791A CN 112439158 A CN112439158 A CN 112439158A
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- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- 235000015278 beef Nutrition 0.000 description 1
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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
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/005—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
- A63B21/0058—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters using motors
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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
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0087—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
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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
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
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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
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0087—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
- A63B2024/0093—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load the load of the exercise apparatus being controlled by performance parameters, e.g. distance or speed
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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
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/18—Inclination, slope or curvature
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Abstract
The invention discloses a control method of a strength type fitness device, which comprises the following steps: 1) when the training mode is detected to be started, acquiring the angle theta of the motor driving shaft in real time, and if the angle theta of the motor driving shaft changes, controlling the motor to generate torque T (x) with the direction opposite to the change of the angle theta, wherein T (x) is the torque at the moment x, and the torque T at the final momentfinal＝FfinalX R, R is the radius of the cable disc, FfinalTraining the acting force on the acting element at the final moment; 2) controlling the motor variable torque to be T when the absolute value of the angular acceleration a of the motor driving shaft is larger than epsilon and the direction of the angular acceleration a is opposite to the change of the angle theta in the step 1) or the absolute value of the angular velocity w of the motor driving shaft is larger than rho and the direction of the angular velocity w is opposite to the change of the angle theta in the step 1)min. The invention can realize stepless regulation of force by controlling the motor, and has good safety; control ofThe mode is various, can self-define, and adaptability is good, and application prospect is good.
Description
Technical Field
The invention belongs to the technical field of fitness equipment, relates to a control method of a strength fitness device, and particularly relates to a control method of a strength fitness device taking a motor as a resistance source.
Background
With the development of society, the living standard of people is higher and higher, and more attention is paid to the body health of people, and body building becomes new and fashionable in society increasingly. Strength training is one of the most common training programs for fitness, relying on strength-type exercise equipment.
The existing strength type fitness equipment is a pure mechanical manufacturing product and still has mechanical characteristics generally, materials with large weight are selected as resistance sources for training, the weight bearing effect is realized by utilizing the gravity principle, such as dumbbells, barbells and the like, but because of the nonresistance and uncontrollable property of gravity, the accidental injury of a sporter frequently occurs in the exercise process, and meanwhile, the volume of the resistance sources is large, so that the popularization of the strength type fitness equipment in the family market is influenced to a certain degree.
With the continuous development of intellectualization, the strength type fitness equipment is also continuously intelligentized and electrified. At present, a common electrified strength type fitness facility mainly recovers strength by arranging a generator, recovers energy to generate electricity while building body, is energy-saving and environment-friendly, realizes electrification to a certain extent, but has a stiff control mode, and cannot really realize electric intelligent control.
An electric (motor) machine is a device for converting electric energy into mechanical energy, and a rotating magnetic field is generated by utilizing an electrified coil (namely a stator winding) and acts on a rotor (such as a squirrel-cage closed aluminum frame) to form magnetoelectric power rotating torque. The motor mainly comprises a stator and a rotor, and the direction of the forced movement of the electrified conducting wire in a magnetic field is related to the current direction and the direction of a magnetic induction line (magnetic field direction). The torque can be accurately controlled by controlling the current direction and the current magnitude, which is a good carrier for really realizing the electrical intelligent control of the strength type fitness equipment, but how to specifically control the motor can make the motor well applied to the strength type fitness equipment is a great challenge facing the industry at present.
Therefore, the development of the control method of the strength type fitness equipment capable of really realizing electric intelligent control has practical significance.
Disclosure of Invention
The invention aims to overcome the defect that the prior art can not really realize the electric intelligent control of the strength type fitness equipment, and provides a control method of the strength type fitness equipment, which can really realize the electric intelligent control.
In order to achieve the purpose, the invention provides the following technical scheme:
a control method of a strength type body-building apparatus comprises a motor, an angle sensor, a control panel, a power supply, a cable disc and a training acting element, wherein the motor is used as a resistance source for providing training resistance for the strength type body-building apparatus; the power supply supplies power to the motor, the angle sensor and the control panel; the control panel is respectively connected with the motor and the angle sensor, the control panel is used for receiving the signal sent by the angle sensor and processing the signal to control the motor to provide resistance required by training, and comprises one or more programs and one or more processors, and when the one or more programs are executed by the processors, the strength type fitness equipment is enabled to execute the following control method;
the control method comprises the following steps:
(1) when the training mode is detected to be started, acquiring the angle theta of the motor driving shaft in real time, and if the angle theta of the motor driving shaft changes, controlling the motor to generate torque T (x) with the direction opposite to the change of the angle theta, wherein T (x) is the torque at the moment x, and the torque T at the final momentfinal＝FfinalXR, R is the radius of the cable drum, FfinalFor the force applied by the trainee to the training acting element at the final moment, T (x) Fmax(maximum force applied to the training acting element during use) x R;
(2) when the absolute value of the angular acceleration a of the motor driving shaft is larger than epsilon and the direction of the angular acceleration a is opposite to the change of the angle theta in the step (1) or the absolute value of the angular velocity w of the motor driving shaft is larger than rho and the angular velocitywhen the direction of w is opposite to the change of the angle theta in the step (1), controlling the motor to change the torque into TminThe torque direction is unchanged.
Compared with the resistance source which is fixed in weight and not easy to adjust in the prior art, the resistance source can be conveniently adjusted by controlling the torque of the motor, and meanwhile, the resistance source can be infinitely adjusted.
According to the invention, the angular acceleration a and the angular velocity w of the motor driving shaft can be obtained through the angle theta of the motor driving shaft acquired by the angle sensor, when the system is started and a user pulls or pushes the training acting element, the training acting element is connected with the motor driving shaft through the inhaul cable, the motor driving shaft also rotates, the angle theta of the motor driving shaft changes at the moment, namely, the motor is controlled to output the torque opposite to the change direction of the angle theta, a specific output curve of the torque can be adjusted by the user according to the requirement, and finally the torque of the motor is equal to the product of the acting force of the user and the R of the cable disc; after the user finishes training, the training acting element is loosened, the torque of the motor is larger than the torque acted on the motor by the user, namely the motor rotates in the instantaneous reverse direction, namely the motor generates a great angular acceleration a in a very short time or the angular velocity w of the motor is improved in a very short time, if the angular acceleration a of a motor driving shaft is too large (the absolute value is larger than epsilon) or the angular velocity w of the motor driving shaft is too large (the absolute value is larger than rho), the user is judged to give up resisting the load-bearing tension, and the motor changes the torque into TminThe user can not be hurt by the smaller torque, the defect that the muscle is pulled or the equipment is damaged due to the fact that the user looses the hand suddenly by the fixed resistance source is overcome, after the cable disc is stored in the cable, the motor automatically enters the sleep mode, the power consumption is reduced, the energy consumption is saved, and the cable storing force is eliminated at the same time.
According to the invention, the motor is controlled to replace gravity load, so that the stepless regulation of force can be realized, the safety of the used equipment is improved, the force information of the user in the using process can be collected through the angle sensor, the force curve in the using process can be drawn, and the consumed energy of the user in the motion process can be obtained.
As a preferred technical scheme:
in the method for controlling a strength type exercise machine, the angular acceleration a is obtained by differentiating the angle θ twice, and the calculation formula is as follows:
the angular velocity w is obtained by differentiating the angle θ once, and the calculation formula is as follows:
in the method for controlling a strength type exercise machine as described above, t (x) is a constant torque, an angle change torque, an angular velocity change torque, or a custom change torque. The control mode of t (x) in the present invention is not limited thereto, and the present invention lists some torque control modes, the torque control mode can be selected by a person skilled in the art through a touch screen (which may also be a display device + an input device) connected to a processor (control board), and the force information in the using process, i.e. the force curve, the energy consumption and other information, can also be displayed through the touch screen during the exercise process and/or after the exercise is finished.
In the method for controlling the strength-type exercise machine, the constant torque t (x) is always equal to and opposite to f (x) xr, and f (x) is the force on the training acting element at time x.
In the method for controlling the strength-type exercise machine, the angle-variable torque t (x) varies with the angle θ of the driving shaft of the motor, and the specific formula is as follows:
T(x)＝k1×(θ-θ0)；
k is1Determining the speed of T changing along with theta for the angle change proportionality coefficient; theta0For initial time instant training modeAngle of the motor at the moment of switching on.
In the method for controlling the strength-type exercise machine, the angular velocity variation torque t (x) varies with the variation of the angular velocity w of the motor driving shaft, and the specific formula is as follows:
T(x)＝k2×(w-w0)；
k is2Determining the speed of T along with w change for the angular speed change proportionality coefficient; w is a0The angular velocity of the motor is the initial moment, i.e. the moment the training mode is switched on.
In the method for controlling a strength type exercise machine, the custom variation torque is t (x) which varies according to a function f (y) set by a user, and the specific formula is as follows:
T(x)＝f(y)；
and y is a variable set by a user. In the mode, a user can customize the output change of the whole movement torque, and the torque can be gradually increased along with time, can also be gradually reduced along with time, and can also be increased or reduced in a step shape. The specific variation form is not limited to the above, the self-defined variation torque can be set by the coach, and the coach can also adjust in real time through the touch screen during the exercise.
The control method of the strength type fitness equipment is characterized in that epsilon is b/R, and b is the limit linear acceleration of the inhaul cable set by the user and has the unit of m/s2R is in the unit of m and epsilon is in the unit of rad/s2I.e., radian per second squared; rho is c/R, c is the ultimate linear velocity of the inhaul cable set by a user, the unit is m/s, namely the square of meter per second, and the unit of rho is rad/s, namely radian per second; t ismin(the torque of a motor for completely accommodating the stay rope into the cable disc when no user operates is satisfied) > G multiplied by R, G is the sum of the total weight of the stay rope and all acting elements connected with the stay rope and the friction force of each element, and the unit is N and TminThe unit of (A) is N.m, namely the beef rice. The protection scope of the present invention is not limited to this, which is only an example, the threshold of the above parameters is not limited to this, and those skilled in the art can set T according to actual needsminShould be of a size to ensure that the user is not injured or frightened after releasing the pull cord。
According to the control method of the strength type fitness equipment, the strength type fitness equipment further comprises a base which is integrally U-shaped and a touch screen connected with the control panel;
the control panel is fixed on one side of the U-shaped base close to the outside, the angle sensor is fixed on the inner side corresponding to the position, and the control panel is connected with the angle sensor through a wire;
a connecting piece I connected with the movable rod is arranged at the end of the base, which is far away from the control board;
the connecting piece I is of a cubic structure, the upper end of the connecting piece I is provided with a U-shaped blind hole, the side surface of the connecting piece I is provided with a through hole I communicated with the U-shaped blind hole, the connecting piece II penetrates through the through hole I to be connected with the movable rod, and the movable rod can rotate around the connecting piece II at a certain angle;
the whole movable rod is 7-shaped and comprises a rod I and a rod II which are vertically connected, the rod I is connected with the connecting piece I, and the rod II is provided with a through hole II for accommodating the inhaul cable to pass through so as to fix the inhaul cable and avoid the loss in the process that the resistance provided by the motor is transmitted to a trainer when the inhaul cable shakes;
the through hole I is circular; the through hole II is a long strip, and the shapes of the through hole I and the through hole II are not limited to the above, and can be selected by those skilled in the art according to actual situations.
According to the control method of the strength type fitness equipment, the motor is arranged in the U-shaped part of the base; the training acting element is a handle which is D-shaped as a whole.
The invention relates to a strength type fitness apparatus, which comprises a sitting posture side flat lifting trainer, a sitting posture lower back pulling trainer, a sitting posture mechanical flat pushing trainer, an inclined plate chest expander bending trainer, a right holding lower pulling trainer, a sitting posture heel lifting trainer, an apparatus leg stretching trainer, a kneeling posture pulling force abdomen contracting trainer and the like.
Has the advantages that:
(1) according to the control method of the strength type fitness equipment, the gravity load is replaced by the control motor, so that the stepless regulation of the strength is realized, and the safety of the used equipment is improved;
(2) according to the control method of the strength type fitness equipment, the strength information of a user in the using process is collected through the angle sensor, the strength curve of the user in the using process is drawn, and the consumed energy of the user in the exercise process is obtained;
(3) the control method of the strength type fitness equipment has various control modes, can be customized by a user, has good adaptability and has wide application prospect.
Drawings
FIG. 1 is a schematic diagram of the power exercise apparatus of the present invention;
FIG. 2 is a schematic diagram of a strength exercise machine without the motor, cable reel and cable;
FIG. 3 is a flow chart of a method of controlling the strength exercise machine of the present invention;
the device comprises a motor 1, a cable disc 2, a control panel 3, a power supply 4, a base 5, a wire 6, a movable rod 7, a pull cable 8, a handle 9, a through hole II, an angle sensor 11, a connecting piece I, a U-shaped blind hole 13 and a through hole I14.
Detailed Description
The following further describes the embodiments of the present invention with reference to the attached drawings.
A strength type fitness apparatus is shown in figures 1 and 2 and comprises a motor 1, an angle sensor 11, a control panel 3, a power supply 4, a handle 9, a base 5 which is integrally U-shaped and a touch screen;
the power supply 4 is respectively connected with the motor 1, the angle sensor 11 and the control panel 3 and supplies power to the motor 1, the angle sensor 11 and the control panel 3;
the motor 1 is used as a resistance source for providing training resistance for strength type fitness equipment, is positioned in a U-shaped part arranged on a base 5, a circular cable disc 2 fixedly connected with an output shaft is sleeved outside the output shaft of the motor 1, a stay cable 8 is wound on the cable disc 2, one end of the stay cable 8 is fixedly connected with the cable disc 2, the other end of the stay cable is connected with a handle 9 which is integrally D-shaped, the stay cable can also be connected with other training acting pieces, the training acting pieces are various in form, and the training acting pieces can be a hand forward-pushing type training device or a leg pushing type training device;
the control panel 3 is respectively connected with the motor 1, the angle sensor 11 and the touch screen, the control panel 3 is used for receiving signals sent by the angle sensor 11 and processing the signals to control the motor 1 to provide resistance required by training, the control panel 3 is fixed on one side, close to the outer side, of the U-shaped base 5, the angle sensor 11 used for collecting angles of a driving shaft of the motor 1 in real time is fixed on the inner side corresponding to the position, the control panel 3 is connected with the angle sensor 11 through an electric wire 6, a connecting piece I12 connected with the movable rod 7 is arranged at the end, far away from the control panel 3, of the base 5, the connecting piece I12 is of a cubic structure, the upper end of the connecting piece I12 is provided with the U-shaped blind hole 13, the side face of the connecting piece I14 communicated with the U-shaped blind hole 13; the movable rod 7 is integrally 7-shaped and comprises a rod I and a rod II which are vertically connected, the rod I is connected with a connecting piece I12, and the rod II is provided with a strip-shaped through hole II 10 for accommodating the stay cable 8 to pass through;
the control panel includes one or more programs and one or more processors, which when executed by the processor, cause the strength exercise machine to perform the control method shown in figure 3:
(1) when the training mode is detected to be started (a user clicks a training mode starting button on a touch screen), acquiring the angle theta of the motor driving shaft in real time, and if the angle theta of the motor driving shaft changes, controlling the motor to generate torque T (x) with the direction opposite to the change of the angle theta, wherein T (x) is the torque at the moment x, and the torque T at the final momentfinal＝FfinalXR, R is the radius of the cable drum, FfinalFor the force acting on the training acting element at the final moment of the trainer, T (x) is a constant torque, an angle change torque, an angular speed change torque or a custom change torque, which are specifically shown in (1.1) to (1.4)Shown in the specification;
(1.1) constant Torque: t (x) is always equal to F (x) xR and opposite to F (x), wherein F (x) is the acting force on the training acting element at the time x;
(1.2) Angle Change Torque: t (x) varies with the angle θ of the motor drive shaft, and the specific formula is as follows:
T(x)＝k1×(θ-θ0)；
k1is an angle change proportionality coefficient; theta0The angle of the motor at the initial moment;
(1.3) angular velocity variation torque: t (x) varies with the angular velocity w of the motor drive shaft, and the specific formula is as follows:
T(x)＝k2×(w-w0)；
k2is the angular velocity change proportionality coefficient; w is a0The angular velocity of the motor at the initial moment;
(1.4) custom varying torque: t (x) is changed according to a function f (y) set by a user, and the specific formula is as follows:
T(x)＝f(y)；
y is a variable set by a user;
(2) when the absolute value of the angular acceleration a of the motor drive shaft is larger than epsilon and the direction of the angular acceleration a is opposite to the change of the angle theta in the step (1) or the absolute value of the angular velocity w of the motor drive shaft is larger than rho and the direction of the angular velocity w is opposite to the change of the angle theta in the step (1), controlling the motor to change the torque into TminThe torque direction is unchanged, wherein epsilon is b/R, and b is the ultimate linear acceleration of the cable set by a user and has the unit of m/s2R is in the unit of m and epsilon is in the unit of rad/s2Rho is c/R, c is the guy cable limit linear velocity set by the user, the unit is m/s, the unit of rho is rad/s, TminG is the sum of the total weight of the stay cable and all acting elements connected with the stay cable and the friction force of each part, and the unit is N and TminThe unit of (d) is N.m;
the angular acceleration a is obtained by twice differentiating the angle θ, and the calculation formula is as follows:
the angular velocity w is obtained by differentiating the angle θ once, and the calculation formula is:
through verification, the control method of the strength type fitness equipment realizes the stepless regulation of the strength by controlling the motor to replace gravity load; the safety of using the equipment is improved, the unique control logic ensures that the user cannot be injured or frightened when the user looses hands suddenly, and the use experience is good; the strength information of the user in the using process is collected through the angle sensor, the strength curve of the user in the using process is drawn, and the consumed energy of the user in the exercise process is obtained; the control mode is various, the user can define, the adaptability is good, and the application prospect is good.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these embodiments are merely illustrative and various changes or modifications may be made without departing from the principles and spirit of the invention.
Claims (10)
1. The control method of the strength type body building apparatus is characterized in that the strength type body building apparatus comprises a motor, an angle sensor, a control panel, a power supply, a cable disc and a training acting element, wherein the motor is used as a resistance source for providing training resistance for the strength type body building apparatus; the power supply supplies power to the motor, the angle sensor and the control panel; the control panel is respectively connected with the motor and the angle sensor, the control panel is used for receiving the signal sent by the angle sensor and processing the signal to control the motor to provide resistance required by training, and comprises one or more programs and one or more processors, and when the one or more programs are executed by the processors, the strength type fitness equipment is enabled to execute the following control method;
the control method comprises the following steps:
(1) when the training mode is detected to be started, acquiring the angle theta of the motor driving shaft in real time, and if the angle theta of the motor driving shaft changes, controlling the motor to generate torque T (x) with the direction opposite to the change of the angle theta, wherein T (x) is the torque at the moment x, and the torque T at the final momentfinal＝FfinalXR, R is the radius of the cable drum, FfinalThe force acting on the training acting element for the final moment of the trainer;
(2) when the absolute value of the angular acceleration a of the motor drive shaft is larger than epsilon and the direction of the angular acceleration a is opposite to the change of the angle theta in the step (1) or the absolute value of the angular velocity w of the motor drive shaft is larger than rho and the direction of the angular velocity w is opposite to the change of the angle theta in the step (1), controlling the motor to change the torque into TminThe torque direction is unchanged.
2. The method of claim 1, wherein the angular acceleration a is obtained by differentiating the angle θ twice, and the formula is:
the angular velocity w is obtained by differentiating the angle θ once, and the calculation formula is as follows:
3. the method of claim 1, wherein t (x) is constant torque, angular variation torque, angular velocity variation torque, or custom variation torque.
4. The method of claim 3, wherein the constant torque is T (x) is always equal to and opposite to F (x) x R, where F (x) is the force on the training action at time x.
5. The method of claim 3, wherein the angle-varying torque t (x) varies with the angle θ of the motor shaft, and is expressed by the following formula:
T(x)＝k1×(θ-θ0)；
k is1Is an angle change proportionality coefficient; theta0Is the angle of the motor at the initial moment.
6. The method of claim 3, wherein the torque t (x) varies with the angular velocity w of the motor shaft, and the formula is as follows:
T(x)＝k2×(w-w0)；
k is2Is the angular velocity change proportionality coefficient; w is a0The angular velocity of the motor at the initial moment.
7. The method of claim 3, wherein the custom variation torque t (x) is varied according to a user-defined function f (y) according to the following formula:
T(x)＝f(y)；
and y is a variable set by a user.
8. The method of claim 1, wherein ε is b/R and b is a pull rate set by the userLinear acceleration in m/s2R is in the unit of m and epsilon is in the unit of rad/s2(ii) a Rho is c/R, c is the ultimate linear velocity of the inhaul cable set by a user, and the unit is m/s, and the unit of rho is rad/s; t isminG is the sum of the total weight of the stay cable and all acting elements connected with the stay cable and the friction force of each part, and the unit is N and TminThe unit of (d) is N.m.
9. The method of claim 1, wherein the strength exercise machine further comprises a base having a generally U-shaped configuration and a touch screen coupled to the control panel;
the control panel is fixed on one side of the U-shaped base close to the outside, the angle sensor is fixed on the inner side corresponding to the position, and the control panel is connected with the angle sensor through a wire;
a connecting piece I connected with the movable rod is arranged at the end of the base, which is far away from the control board;
the connecting piece I is of a cubic structure, the upper end of the connecting piece I is provided with a U-shaped blind hole, the side surface of the connecting piece I is provided with a through hole I communicated with the U-shaped blind hole, the connecting piece II penetrates through the through hole I to be connected with the movable rod, and the movable rod can rotate around the connecting piece II at a certain angle;
the movable rod is integrally 7-shaped and comprises a rod I and a rod II which are vertically connected, the rod I is connected with the connecting piece I, and the rod II is provided with a through hole II for accommodating a pull cable to pass through;
the through hole I is circular; the through hole II is in a long strip shape.
10. The method of claim 1, wherein the motor is mounted within a U-shaped portion of the base; the training acting element is a handle which is D-shaped as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910837791.6A CN112439158A (en) | 2019-09-05 | 2019-09-05 | Control method of strength type fitness equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910837791.6A CN112439158A (en) | 2019-09-05 | 2019-09-05 | Control method of strength type fitness equipment |
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| JP2009131347A (en) * | 2007-11-29 | 2009-06-18 | Don-Lon Yeh | Vibration apparatus for muscle training |
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| US10335626B2 (en) * | 2017-10-02 | 2019-07-02 | Tonal Systems, Inc. | Exercise machine with pancake motor |
| CN211132850U (en) * | 2019-09-05 | 2020-07-31 | 沈毅 | Strength type fitness equipment |
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| US4470597A (en) * | 1982-04-20 | 1984-09-11 | Mcfee Richard | Exerciser with flywheel |
| JP2009131347A (en) * | 2007-11-29 | 2009-06-18 | Don-Lon Yeh | Vibration apparatus for muscle training |
| JP2011244980A (en) * | 2010-05-26 | 2011-12-08 | Panasonic Electric Works Co Ltd | Physical training device |
| CN105749496A (en) * | 2016-04-26 | 2016-07-13 | 河南师范大学 | Tension-adjustable body-building power generation device |
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| US10335626B2 (en) * | 2017-10-02 | 2019-07-02 | Tonal Systems, Inc. | Exercise machine with pancake motor |
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