CN117159975A - A tensioner with electromagnetic damper and elastic rope rebound mechanism - Google Patents

Abstract

The application discloses a chest expander with an electromagnetic damper and an elastic rope rebound mechanism, which comprises the following components: the intelligent control system comprises a shell, a base, a pull rope mechanism, a transmission mechanism, an electromagnetic damper and an intelligent control system. The pull rope mechanism comprises a handle, a pull rope, a directional wheel, a rope winding sleeve, an elastic rope and a rope winding wheel. When the pull rope is pulled outwards, the rope winding sleeve winds the elastic rope to store energy, and when the pull force is lost, the elastic rope rebounds to release energy to drive the rope winding sleeve to reversely rotate to retract the rope. The transmission mechanism comprises a large gear and a small gear. Damping is provided by an electromagnetic damper through a transmission part, the damping is controlled by an electromagnetic damper control system, and the motion parameters are displayed by a display screen. The chest expander with the electromagnetic damper and the elastic rope rebound mechanism can accurately adjust the damping, can display the motion parameters in real time, and is simple in structure, low in cost, safe and reliable.

Description

A tensioner with electromagnetic damper and elastic rope rebound mechanism

Technical field

The invention relates to a fitness tensioner, in particular to a tensioner with an electromagnetic damper and an elastic rope rebound mechanism.

Background technique

The tensioner is a common fitness equipment. The traditional tensioner usually only includes fixed handles and pull ropes, and lacks the ability to adjust and change. At the same time, due to the lack of rebound effect of the drawstring after being stretched for a long time, the exercise effect is unsatisfactory. Moreover, the design and material limitations of traditional tensioners pose safety risks during use. For example, the spring tensioner may be at risk of breaking due to long-term use or damage, and the rubber belt tensioner may suddenly break due to aging or damage, which may cause injury to the user. At the same time, because ordinary tensioners cannot accurately control resistance and cannot display exercise parameters in real time, a new type of tensioner design is needed to solve the above problems to meet the different exercise needs of users and provide better exercise effects.

Contents of the invention

The invention provides a tensioner with an electromagnetic damper and an elastic cord rebound mechanism to at least solve the above-mentioned problems of short service life, inconvenient adjustment, low safety and inability to display motion parameters in real time.

According to the present invention, a tensioner with an electromagnetic damper and an elastic cord rebound mechanism is provided, which includes a tensioner main body, and is characterized in that it includes: a shell, a base, a tension rope mechanism, a tension rope retraction mechanism, a transmission mechanism, and an electromagnetic damping controller, display screen and electromagnetic damping controller. The rope pulling mechanism: includes a handle, a tension rope, a rope winding sleeve, a one-way bearing, and a directional wheel. One end of the tension rope is connected to the handle outside the housing, and the second end of the tension rope is wound around One end of the rope-winding sleeve, the rope-winding sleeve is rotatably connected to the inside of the housing, the electromagnetic damper transmits damping to the rope-winding sleeve through the transmission component; the tension rope is retracted Mechanism: The tension rope retraction mechanism is arranged inside the housing and includes an elastic rope and a rope winding wheel; the rope winding wheel is linked to the rope winding sleeve through the elastic rope. When the rope is pulled, the rope winding wheel is linked to the rope winding sleeve. The rope winding sleeve releases the tension rope while winding the elastic rope; when releasing the tension rope, the elastic rope winds away from the rope winding sleeve and simultaneously performs a rope retracting action on the tension rope.

Preferably, the transmission component includes a first transmission gear and a second transmission gear. The first transmission gear and the high-speed shaft connected to the one-way bearing inside the rope winding sleeve can rotate synchronously when retracting or releasing the rope. Or rotate asynchronously, the high-speed shaft and the low-speed shaft can rotate freely on the housing through rolling bearings, the first transmission gear meshes with the second transmission gear, and the second transmission gear meshes with the low-speed shaft through the low-speed shaft. Electromagnetic damper linkage.

Preferably, the tensioner with an electromagnetic damper and an elastic cord rebound mechanism is characterized in that: the diameter of the first transmission gear is smaller than the diameter of the second transmission gear; the winding of the rope sleeve is The diameter of the rope is larger than the diameter of the rope winding wheel; the diameter of the first transmission gear is smaller than the diameter of the rope winding sleeve; the diameter of the second transmission gear is larger than the diameter of the rope winding wheel and the rope winding sleeve. diameter.

Preferably, the tensioner with an electromagnetic damper and an elastic cord rebound mechanism is characterized in that: the housing is also provided with fasteners, and the fasteners are used to secure the housing to the tensioner. Fixed on the designated position of the base.

Preferably, the tensioner with an electromagnetic damper and an elastic rope rebound mechanism is characterized in that: a directional wheel is placed inside the housing, and the directional wheel is placed above the rope sleeve, oriented. The axial direction of the wheel is in the same direction as the axial direction of the rope winding sleeve, and the directional wheel can rotate freely on the directional wheel axis.

Preferably, the tensioner with an electromagnetic damper and an elastic cord rebound mechanism is characterized in that a wireless module and a sensor are provided on the housing, which can monitor real-time torque and rotational speed and transmit them to On the corresponding mobile phone software and display screen, the wireless module and sensor are placed on the side of the electromagnetic damper of the housing.

Beneficial effects of the present invention:

In the present invention, through the display screen and the sensor display chip provided inside the tensioner, at least one of the motion parameters and the damping parameters can be displayed on the display screen, and the current damping and other parameters can be controlled by the controller of the damper, making adjustment easy.

In the present invention, users' needs for tension fitness are met through a simple mechanical structure. Compared with other mechanical structures, the tensioner is quieter, has low cost and is not easily damaged, has precise and convenient adjustment, and is suitable for use by various professionals and fitness enthusiasts. .

It should be understood that nothing described in this section is intended to identify key or important features of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become easily understood from the following description.

Description of drawings

In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

Figure 1 is a schematic diagram of the overall structure of a tensioner with an electromagnetic damper and an elastic cord rebound mechanism proposed by the present invention;

Figure 2 is a partial schematic diagram of a single tensioner of a tensioner with an electromagnetic damper and an elastic cord rebound mechanism proposed by the present invention;

Figure 3 is a schematic diagram of the internal structure of a tensioner with an electromagnetic damper and an elastic cord rebound mechanism proposed by the present invention;

Figure 4 is a schematic structural diagram of a one-way rotating and retracting tension rope mechanism of a tensioner with an electromagnetic damper and an elastic cord rebound mechanism proposed by the present invention;

In the picture: 1. Shell; 2. Base; 3. Electromagnetic damper; 4. Handle; 5. Tension rope; 6. Rope winding sleeve; 7. One-way bearing; 8. High-speed shaft; 9. First transmission Gear; 10. Second transmission gear; 11. Rolling bearing; 12. Low-speed shaft; 13. Elastic rope; 14. Rope winding wheel; 15. Wireless module and sensor; 16. Display screen and electromagnetic damping controller; 17. Orientation wheel ; 18. Directional axle; 19. Rope-winding axle; 20. Positioning frame.

Implementation

In order to make the purpose, features, and advantages of the present invention more obvious and understandable, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only Some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present invention.

Referring to Figures 1 to 4, a tensioner with an electromagnetic damper and an elastic cord rebound mechanism provided according to the present invention includes a tensioner body, which is characterized in that it includes: a shell 1, a base 2, a rope mechanism, a tensioner Rope retraction mechanism, transmission mechanism, electromagnetic damper 3, display screen and electromagnetic damping controller 16. The tension rope 5 is threaded through the housing 1 and extends to the outside of the housing through the directional wheel 17. The directional wheel 17 can rotate freely on the directional axle 18. The first end of the tension rope 5 is located between the outside of the housing 1 and the handle. 4 connection, the second end of the tension rope 5 is located inside the housing 1, and the second end of the tension rope 5 is wound on the rope sleeve 6; the outer ring of the one-way bearing 7 is nested inside the rope sleeve 6, and the single The high-speed shaft 8 is nested in the inner ring of the bearing 7 inside the housing 1; the other end of the high-speed shaft 8 rotates synchronously with the first transmission gear 9; the second transmission gear 10 meshing with the first transmission gear 9 drives the low-speed shaft 12 to rotate. The other end of the low-speed shaft 12 is connected to the electromagnetic damper 3; a wireless module and a sensor 15 are provided on one side of the electromagnetic damper of the housing 1, and a display screen and an electromagnetic damping controller are provided in the middle of the base 2 16.

The working principle of the present invention: when the user applies force on the tension rope 5 and pulls the tension rope 5 out of the housing 1, the rope sleeve 6 rotates. At this time, the one-way bearing 7 is locked, and the rope sleeve 6 synchronously drives the single Rotates toward the bearing 7 and the high-speed shaft 8. At the same time, the other end of the high-speed shaft 8 is connected to the first transmission gear 9. The second transmission gear 10 meshing with the first transmission gear 9 also rotates synchronously. The second transmission gear 10 passes through the low-speed shaft 12 and will The torque is transmitted to the electromagnetic damper 3. When the electromagnetic damper is powered on, it will generate damping and form resistance to hinder the user's rope pulling action to achieve the damping effect of the tensioner; at the same time, when the rope is pulled, the rope sleeve 6 The other end will be wrapped around the elastic cord 13, and the elastic cord 13 will elongate, deform, and generate elasticity; further, when the user completes a pulling action, the user stops exerting force on the tension cord 5. Since the elastic cord 13 is in an elongated state, When the external force is removed and the elastic rope 13 returns to its initial state, it will drive the rope sleeve 6 to rotate in the opposite direction. At the same time, the one-way bearing 7 inside the rope sleeve 6 rotates reversely and is in a relaxed state. The high-speed shaft 8 does not participate in the rotation and only needs a few seconds. A small force can cause the rope sleeve 6 to reverse, causing the tension rope 5 to retract; when pulling the rope, the movement parameters can be displayed on the display screen and the corresponding mobile phone software in real time through the wireless module and the sensor 15, and through the electromagnetic The damping controller adjusts the damping size; this fitness tensioner meets the user's needs for tension fitness through a simple mechanical structure. It is low-cost and not easily damaged, is safe and stable, and is easy to adjust, and can meet the needs of most users.

In the present invention, the housing 1 can be made of metal material and is used to protect the components in the housing 1 . A positioning frame 20 for positioning the rope sleeve 6, the rope pulley 14 and the low-speed shaft 12 is fixed inside the housing 1; further, a bearing seat can be installed on the housing 1, and the low-speed shaft 12 and the high-speed shaft 8 can pass through The rolling bearing 11 is connected to the bearing seat so that the low-speed shaft 12 and the high-speed shaft 8 can rotate stably and smoothly relative to the housing 1 .

The rope sleeve 6 and the low-speed shaft 12 are connected through the one-way bearing 7, so that when the rope is pulled, the one-way bearing 7 is locked, and the rope sleeve 6 and the low-speed shaft 12 can rotate synchronously, wherein the one-way bearing 7 When reversing, it will be relaxed, and the rope sleeve 6 and the high-speed shaft 8 can rotate freely. When the rope retracting action is performed, the rope pulley 14 winds back the elastic rope 13, causing the rope sleeve 6 to reverse. Turn, the other end of the rope sleeve 6 will retract the tension rope 5. Since the rope sleeve 6 and the high-speed shaft 8 can rotate freely when retracting the rope, the tension rope 5 can be quickly retracted with only a small force.

With this arrangement, when the user pulls the tension rope 5, the rope sleeve 6 rotates, and the rope sleeve 6 wraps around the elastic cord 13, causing the elastic cord 13 to elongate and deform, thereby generating elastic force when retracting the rope.

Preferably, the transmission part includes a first transmission gear 9 and a second transmission gear 10. When the rope pulling action is performed, the first transmission gear 9 rotates synchronously with the rope winding sleeve 6, and the second transmission gear 10 rotates synchronously with the electromagnetic damper 3. , the first transmission gear 9 meshes with the second transmission gear 10 and rotates reversely.

It should be added that the transmission component only needs to satisfy the relative rotation between the rope sleeve 6 and the electromagnetic damper 3. The transmission component of this application can also be a helical gear, a herringbone gear and other non-gear transmission forms.

In another specific implementation scenario, the first transmission gear 9 may be a part of the structure of the high-speed shaft 8 , and the second transmission gear 10 may be part of the structure of the low-speed shaft 12 .

Preferably, the diameter of the first transmission gear 9 is smaller than the diameter of the second transmission gear 10; the diameter of the rope winding portion of the tension rope 5 of the rope winding sleeve 6 is larger than the diameter of the rope winding portion of the elastic rope 13; the diameter of the rope winding wheel 14 is smaller than The diameter of the rope-winding part of the elastic rope of the rope-winding sleeve 6; the diameter of the first transmission gear 9 is larger than the diameter of the rope-winding part of the elastic rope 13 of the rope-winding sleeve 6 but smaller than the diameter of the rope-winding part of the tension rope 5; the second transmission gear 10 The diameter is larger than the diameter of the rope winding portion of the tension rope 5 of the rope winding sleeve 6.

Specifically, the elastic rope 13 goes around two sets of rope winding pulleys 14, and the rope winding pulley 14 can rotate freely on the rope winding wheel axis 19; when there is no pull rope, the elastic rope 13 is in a normal state, and when the tension rope 5 is pulled out, The elastic cord 13 is tightened and stretched while winding into the rope sleeve 6 and around the elastic cord. When the tension cord 5 is in a straightened state, the elastic cord 6 can provide normal resilience.

Preferably, the housing 1 is provided with a positioning device and a fastening device. The fastening device can fix the housing 1 at a designated position on the base 2. The base 1 is provided with a display screen and slots for the electromagnetic damping controller 16, which can be fixed. The display screen and the electromagnetic damping controller 16 are also provided with positioning holes for the fitness tensioner at precise positions on the other side of the base. When the user needs to exercise his arms, he only needs to add a fitness tensioner on the other side. Arm exercise.

The fastening device may be a fastening bolt. The fastening bolt is threaded through the housing 1 and is threadedly connected to the base. Cooperating with the fastening bolt, the housing 1 can be fixed at the corresponding position of the base 2 .

Preferably, the housing 1 is provided with positioning grooves and fasteners for the positioning frame 20, so that the positioning frame 20 can be installed accurately and reliably. The positioning frame 20 plays the role of positioning and supporting other components.

In practical application scenarios, the fitness tensioner provided by the present invention can be used in multiple states. In the first state of use, the user can fix the base 2 on the ground, and then can hold the handle 4 with one hand to perform tensioning exercises, or can In the case of two tensioners, the two tensioners can be installed on the same base 2 and coaxially to facilitate user use. ; When on a fixed floor, the user's main pulling force direction is upward. Strengthen their waist, legs and arms.

In another application scenario, the user can fix the base 2 on the wall or any solid surface through fasteners. Then hold the handle 4 to perform the pulling movement. Correspondingly, in actual operation, the user can sit down and perform rowing or paddling movements to exercise the arms and chest muscles, which will not be described in detail below.

What needs to be added in this application is that there is a directional wheel 17 inside the casing for the tension rope 5 to pass through. The casing 1 is provided with a hole for positioning and fixing the directional wheel axle 18. There is a bearing inside the directional wheel 17, which can be The tension rope 5 rotates freely on the directional wheel shaft. The tension rope 5 is connected to the rope winding part of the rope winding wheel shaft 6 through the directional wheel 7. The directional wheel 7 reduces the wear of the tension rope 5 and can reduce the situation where the tension rope 5 winds together. The end of the tension rope 5 located outside the housing 1 is provided with a handle 4. The user can pull the handle 4 to apply force to the tension rope 5, which facilitates pulling movements without harming the hands.

Furthermore, this application can also provide a display screen and an electromagnetic damping controller 16 on the base 2. A damper control chip connected to the LCD screen is provided in the housing 1, and various parameters are displayed through the display screen 16, including but not limited to: Motion parameters, damping parameters, etc. And the damping size of the electromagnetic damper 3 can be adjusted by touching the display screen, which is suitable for use by various fitness enthusiasts.

What needs to be added is that by arranging the wireless module and the sensor 15 outside the housing 1, the motion parameters can be accurately measured and transmitted to the specific mobile phone software through the wireless module. The user can check the recent motion status through the software. And plan your next exercise.

Among them, the damping parameters are implemented as follows:

The electromagnetic damping controller can accurately control the electromagnetic damper, quickly adjust the damping size, and display the tension damping parameters on the display. This operation can facilitate the user and purposefully control fitness exercises. Make plans.

The implementation of displaying motion parameters is as follows:

By arranging at least one of other sensors such as a rotational speed sensor and a stroke sensor on the rope sleeve 6, the sensor is used to determine the rotation distance of the rope sleeve, and the rotation distance is converted into a corresponding pulling force value, so that the user's number of pulls and total pull force can be calculated. The stroke, total pulling force, etc. are displayed. In other embodiments, the sensor can also be installed at the directional wheel 17, etc., to directly detect the sliding distance of the tension rope 5, and convert the sliding distance into the corresponding tension value, which will not be described in detail below.

It should be understood that various forms of the process shown above may be used, with steps reordered, added or deleted. For example, each step described in the disclosure of the present invention can be executed in parallel, sequentially, or in a different order. As long as the desired results of the technical solution disclosed in the present invention can be achieved, there is no limitation here.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means two or more than two, unless otherwise explicitly and specifically limited.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (7)

1. The utility model provides a chest expander with electromagnetic damper and elastic cord resilience mechanism, includes chest expander main part, its characterized in that: comprising the following steps: the device comprises a shell (1), a base (2), a pull rope mechanism, a pull rope retraction mechanism, a transmission mechanism, an electromagnetic damper (3), an intelligent control system and a display. The pull rope mechanism comprises: the electromagnetic damping device comprises a handle (4), a tension rope (5), a rope winding sleeve (6), a one-way bearing (7) and a directional wheel (17), wherein one end of the tension rope (5) is connected with the handle (4) outside the shell (1), the second end of the tension rope (5) is wound at one end on the rope winding sleeve (6), the rope winding sleeve (6) is rotationally connected to the inside of the shell (1), and the electromagnetic damper (3) transmits damping to the position of the rope winding sleeve (6) through a transmission part; the tension rope retracting mechanism comprises: the tension rope withdrawing mechanism is arranged in the shell (1) and comprises an elastic rope (13) and a rope winding wheel (14). The rope winding wheel (14) is linked with the rope winding sleeve (6) through the elastic rope (13), and when the rope is pulled, the rope winding sleeve (6) releases the tension rope (5) and simultaneously winds the elastic rope (13); when the tension rope (5) is released, the elastic rope (13) is wound off the rope winding sleeve (6) and simultaneously performs rope winding action on the tension rope (5).

2. The transmission component according to claim 1 comprises a first transmission gear (9) and a second transmission gear (10), wherein the first transmission gear (9) is connected with a high-speed shaft (8) connected with a one-way bearing (7) in the rope winding sleeve (6) and can synchronously rotate or loosen when the rope is wound or unwound, the high-speed shaft (8) and the low-speed shaft (12) can freely rotate on the shell (1) through rolling bearings (11), the first transmission gear (9) is meshed with the second transmission gear (10), and the second transmission gear (10) is linked with the electromagnetic damper (3) through the low-speed shaft (12).

3. A chest expander with an electromagnetic damper and bungee cord rebound mechanism as recited in claim 1, wherein: the diameter of the first transmission gear (9) is smaller than that of the second transmission gear (10); the diameter of the rope winding position of the rope winding sleeve (6) is larger than the diameter of the rope winding wheel (14); the diameter of the first transmission gear (9) is smaller than that of the rope winding sleeve (6); the diameter of the second transmission gear (10) is larger than the diameter of the rope winding position of the rope winding wheel (14) and the rope winding sleeve (6).

4. A chest expander with an electromagnetic damper and bungee cord rebound mechanism as recited in claim 1, wherein: the shell is also provided with a fastener, and the fastener is used for fixing the shell (1) at a designated position of the base (2).

5. A chest expander with an electromagnetic damper and bungee cord rebound mechanism as recited in claim 1, wherein: the shell (1) is internally provided with a directional wheel (17), the directional wheel (17) is arranged above the rope winding sleeve (6), the axial direction of the directional wheel (17) is in the same direction as the axial direction of the rope winding sleeve (6), and the directional wheel (17) can rotate freely on the directional wheel shaft (18).

6. A chest expander with an electromagnetic damper and bungee cord rebound mechanism as recited in claim 1, wherein: the shell is provided with a wireless module and a sensor (15) which can monitor real-time torque and rotation speed and transmit the torque and rotation speed to corresponding mobile phone software. The wireless module and the sensor (15) are arranged on one side of the electromagnetic damper (3) of the shell.

7. A chest expander with an electromagnetic damper and bungee cord rebound mechanism as recited in claim 1, wherein: the body-building chest expander can also be provided with the display screen, inside is equipped with sensor display chip and attenuator controlling means, the chip that the LCD screen is connected can be connected to chest expander inside sensor and attenuator on, through at least one of control chip control display screen demonstration motion parameter and damping parameter to parameters such as current damping of controller control through the attenuator, it is convenient to adjust.