A multi-functional fitness chair and its usage method and application

Abstract

The present invention belongs to the technical field of instrument and equipment, and discloses a multifunctional fitness chair, its use method and application. The fitness chair includes a chair body, a resistance device and a multi-directional stretching mechanism. The multi-directional stretching mechanism includes a side arm stretching mechanism, a fixed pulley group and a horizontal stretching mechanism. The fixed pulley group is arranged at the bottom of the side arm stretching mechanism and the horizontal stretching mechanism. By applying an external force to stretch the extended end of the side arm stretching mechanism, the resistance device can provide resistance. One end of the horizontal stretching mechanism is connected to the side arm stretching mechanism, and the horizontal stretching mechanism is connected to the resistance device through the side arm stretching mechanism. When an external force is applied to stretch the horizontal stretching mechanism by the stretching motion mechanism, the horizontal stretching mechanism can adjust the stroke through the side arm stretching mechanism and provide resistance through the resistance device. The fitness chair of the present invention has a simple structure, is convenient to use, occupies a small space, has a low cost, is safe and reliable, and can fully exercise the main muscle groups such as the arms, chest, waist, thighs, and buttocks.

Description

Technical Field

[0001] The present invention belongs to the technical field of equipment, and in particular relates to a multifunctional fitness chair and its use method and application. Background Art

[0002] At present, fitness equipment is generally divided into two categories: single-function machines and multi-function machines. Each single-function machine is mainly designed for a similar type of movement. Such equipment generally has problems such as relatively simple structure, low space utilization, single function, poor interactivity, and low resistance value. For example, the average floor area required for a rowing machine is about 1 square meter, and a spinning bike also requires a dedicated area of about 0.5 square meters, but it can only achieve one type of exercise mode. This takes up too much space for most families, public offices, and standard hotel rooms.

[0003] For existing household multi-functional fitness equipment, it is generally necessary to be fixed to the wall or rely on the relatively large weight of the equipment itself to provide stability. This causes problems that the installation conditions and usage conditions have relatively high requirements. In addition, for fitness equipment that requires a lot of pushing and stretching, the resistance is basically achieved by the trainer's own body weight or external weights. Among the equipment that forms resistance by the user's own body weight, the structure is relatively simple but it is not easy to adjust the resistance size, while for the equipment that forms resistance by weights, there is a lot of noise when the weights are lifted and then lowered, which affects others, and a large number of weight blocks also increase the volume and cost of the fitness equipment, and it is not suitable for medium-intensity daily exercise in families and offices.

[0004] Recently, some fitness machines with motor resistance have also appeared on the market. All such products have one motor corresponding to one resistance rope (such as a rowing machine with electrical or electromagnetic resistance) or two motors corresponding to two resistance ropes (TONAL, IMBODY type trainers). However, a multi-functional fitness machine needs to be able to provide more than three resistance ropes for movements in different positions. If multiple motors are used, the equipment cost will increase, the control will be more complex, the weight and volume will also increase, and it will be inconvenient to use. Therefore, there is an urgent need for one or several related new equipment or devices. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a multifunctional fitness chair and its use method and application.

[0006] The technical solution adopted by the present invention to solve its technical problems is:

[0007] A multifunctional fitness chair, which includes a chair body, a resistance device, and a multi-directional stretching mechanism. The chair body is arranged vertically. The chair body includes a seat, a backrest, and a tension arm. The seat is arranged horizontally, the backrest is arranged vertically, and the backrest is connected to the inner side of the horizontal end of the seat. The tension arm is arranged obliquely in the vertical direction. There are two tension arms, and the two tension arms are symmetrically connected longitudinally to the longitudinal end faces of the backrest. The tension arm can move up and down back and forth along the outer edge of the backrest and can be adjusted at multiple angles. The resistance device is arranged horizontally and is connected to the bottom of the seat. The multi-directional stretching mechanism is arranged vertically and is connected to the outer side of the horizontal end of the backrest. The multi-directional stretching mechanism includes a side arm stretching mechanism, a fixed pulley group, and a horizontal stretching mechanism. The horizontal stretching mechanism is arranged vertically and is arranged in the middle and lower part of the backrest.

[0008] The fixed pulley group is connected to the bottom of the side arm stretching mechanism and the horizontal stretching mechanism. The fixed pulley group includes a fifth fixed pulley and a sixth fixed pulley. One end of the side arm stretching mechanism can be connected to the resistance device through the fifth fixed pulley. The other end of the side arm stretching mechanism can pass through the tension arm and extend above the tension arm. When an external force is applied to stretch the extended end of the side arm stretching mechanism outside the tension arm, the resistance device can provide resistance, and the extended end of the side arm stretching mechanism can be adjusted at multiple angles with the tension arm. When adjusted to the high position of the backrest, a downward pulling movement can be performed. When adjusted to the low position of the backrest, an upward pulling movement can be performed.

[0009] One end of the horizontal stretching mechanism is connected to the side arm stretching mechanism. The horizontal stretching mechanism is connected to the resistance device through the side arm stretching mechanism. The other end of the horizontal stretching mechanism extends to the outside of the bottom of the seat through the sixth fixed pulley. The extended end of the horizontal stretching mechanism outside the seat can be detachably connected to an external stretching exercise mechanism. When the stretching exercise mechanism applies an external force to stretch the horizontal stretching mechanism, the horizontal stretching mechanism can adjust the stroke through the side arm stretching mechanism and provide resistance through the resistance device.

[0010] Furthermore, the tension arm is slidably connected to the backrest through a track. The track is arranged vertically. The tension arm can slide back and forth along the track, and a positioning rod is arranged on the tension arm. The position of the tension arm on the track can be fixed through the positioning rod.

[0011] Further, the fitness chair further includes a rear plate, the rear plate includes a pedal and a connecting rod, the pedal is arranged horizontally, the connecting rod is arranged obliquely in the vertical direction, the pedal is connected to the bottom of the seat through the connecting rod, or the pedal and the connecting rod are movably hinged together, the connecting rod and the bottom of the seat are movably hinged together, and the hinged joints between the pedal and the connecting rod and between the connecting rod and the seat can be detachably connected to the locking device.

[0012] Further, the side arm stretching mechanism includes a fixed pulley resistance rope, a first fixed pulley, a second fixed pulley, a third fixed pulley and a wire wheel assembly. Two of the fixed pulley resistance rope, the first fixed pulley, the second fixed pulley, the third fixed pulley, the wire wheel assembly and the fifth fixed pulley are symmetrically arranged longitudinally. The fixed pulley resistance ropes on the same side can be connected to the first fixed pulley, the second fixed pulley, the third fixed pulley and the wire wheel assembly. The wire wheel assembly is symmetrically and fixedly arranged on the outer side of the top of the chair back longitudinally. The first fixed pulley is symmetrically arranged longitudinally at the top of the middle part of the chair back. The second fixed pulley is symmetrically and fixedly arranged on the upper part of the chair back between the wire wheel assembly and the first fixed pulley longitudinally. The third fixed pulley is symmetrically and fixedly arranged on the middle and lower part of the chair back longitudinally. One end of the fixed pulley resistance rope is connected to the fifth fixed pulley through the third fixed pulley on the same side, and the other end of the fixed pulley resistance rope extends to the outside of the tension arm through the second fixed pulley, the first fixed pulley and the wire wheel assembly on the same side in sequence; by applying an external force to pull the extended end of the fixed pulley resistance rope, the resistance device can provide resistance according to the applied tension, and adjust the generated torque and the stroke generated by the resistance rope through the wire wheel assembly;

[0013] The horizontal adjustment structure includes a first movable pulley resistance rope, a second movable pulley resistance rope, a first movable pulley, a second movable pulley and a third movable pulley. The first movable pulley slides on the fixed pulley resistance rope between the first fixed pulley and the second fixed pulley on the same side. The second movable pulley slides on the fixed pulley resistance rope between the first fixed pulley and the second fixed pulley on the other longitudinal side. A first movable pulley resistance rope is connected between the first movable pulley and the second movable pulley. A third movable pulley is arranged on the first movable pulley resistance rope. One end of the second movable pulley resistance rope is connected to the third movable pulley, and the other end of the second movable pulley resistance rope extends to the outside of the bottom of the seat through the sixth fixed pulley.

[0014] Further, the fitness chair is further provided with a display device, the display device includes an adjustable connecting rod and a display screen. One end of the adjustable connecting rod is connected to the display screen, and the other end of the adjustable connecting rod is connected to the chair body. The adjusting connecting rod can rotate around its connection point with the chair body, which facilitates the viewing and use of the display.

[0015] Further, there are two resistors symmetrically arranged longitudinally, or the resistor is a servo motor or a linear motor. A motor wire reel is arranged inside the resistor and can wind and unwind the fixed pulley resistance rope. Alternatively, the fixed pulley resistance rope is a steel wire rope.

[0016] Further, a handle is connected to the other end of the fixed pulley resistance rope extending outside the tension arm. Alternatively, a buckle is connected to the other end of the second movable pulley resistance rope extending outside the bottom of the seat. The buckle can be detachably connected to an external stretching mechanism. The stretching mechanism includes a rowing machine.

[0017] Further, the wire reel assembly includes a large wheel and a small wheel. The small wheel is coaxially sleeved and connected inside the large wheel. The large wheel is connected to the fixed pulley resistance rope near the first fixed pulley, and the small wheel is connected to the fixed pulley resistance rope near the tension arm. The large wheel and the small wheel can rotate along their central axes, and the rotation ratio of the large wheel to the small wheel is 1:1.5 to 1:10.

[0018] Further, an open slot is provided at the bottom of the seat, and a positioning hole is provided outside the open slot. The rowing machine includes a rowing machine pull rod, a resistance rope, a support foot, a connecting rod, and a positioning pin. The support foot of the rowing machine is connected to the ground and serves as an auxiliary support. The connecting rod of the rowing machine can be connected to the positioning hole of the seat through the positioning pin. One end of the resistance rope of the rowing machine is connected to the rowing machine pull rod, and the other end of the resistance rope can be connected to the buckle through the open slot to complete the connection between the rowing machine and the fitness chair.

[0019] The usage method of the multifunctional fitness chair as described above includes the following steps:

[0020] (1) Adjust the tension arm to the high position of the backrest track, apply an external force to stretch the extended end of the side arm stretching mechanism, and the resistor can provide resistance for a downward movement.

[0021] (2) Adjust the tension arm to the low position of the backrest track, apply an external force to stretch the extended end of the side arm stretching mechanism, and the resistor can provide resistance for an upward movement.

[0022] Alternatively, when the tension arm is adjusted to the side direction of the seat, the person applying the external force can sit on the seat for training.

[0023] Alternatively, when the tension arm is adjusted to the backrest side direction, the person applying the external force can stand on the backrest side for training.

[0024] (3) Connect the externally connected stretching exercise mechanism to the extension end. Corresponding to different externally connected stretching exercise mechanisms, the user can perform rowing exercises, leg exercises, and other limb exercises on the seat, while the seat is responsible for providing support, and the resistance device under the seat is responsible for providing resistance to the externally connected stretching exercise mechanism.

[0025] The advantages and positive effects achieved by the present invention are as follows:

[0026] 1. The multifunctional fitness chair of the present invention includes a chair body, a resistance device, and a multi-directional stretching mechanism. The multi-directional stretching mechanism includes a side arm stretching mechanism, a fixed pulley group, and a horizontal stretching mechanism. When in use, three resistance ropes can be pulled simultaneously to perform complex movements. In addition, each resistance rope can also be pulled individually. When a single resistance rope is pulled individually, a tension force is generated on the other resistance ropes, which can ensure that the other resistance ropes will not become loose. When an external force is applied to stretch the extension end of the side arm stretching mechanism, the resistance device can provide resistance. When the tension arm is adjusted to the high position of the chair back, a downward pull movement can be performed, and when adjusted to the low position of the chair back, an upward pull movement can be performed; the trainer can achieve the purpose of training the main arm, chest, and back muscles such as the biceps brachii, trapezius muscle, pectoralis major muscle, triceps brachii, latissimus dorsi muscle, deltoid muscle, and trapezius muscle; when an externally connected stretching exercise mechanism is connected to the seat and an external force is applied to drive the stretching of the horizontal stretching mechanism, the resistance rope of the horizontal stretching mechanism will adjust the stroke through the side arm stretching mechanism and provide resistance through the resistance device. Corresponding to different externally connected stretching exercise mechanisms, the user can perform rowing exercises, leg exercises, and other limb exercises on the seat, while the seat is responsible for providing support, and the resistance device under the seat is responsible for providing resistance to the externally connected stretching exercise mechanism, realizing multiple exercise modes.

[0027] 2. The multifunctional fitness chair of the present invention overcomes the deficiencies of the prior art and provides a fitness device that is scientifically designed, simple in structure, convenient to use, small in space occupation, low in running noise, low in cost, safe and reliable, can fully exercise the main muscle groups such as the arms, chest, waist, thighs, and buttocks, and is easy to measure the total calorie consumption. Compared with traditional bulky fitness facilities, the present invention can be used as an ordinary seat without occupying additional space. Compared with simple household fitness equipment, this product is powerful and professional in function.

[0028] 3. The side arm stretching mechanism of the present invention includes a fixed pulley resistance rope, a first fixed pulley, a second fixed pulley, a third fixed pulley, and a wire wheel assembly. The horizontal adjustment structure includes a first movable pulley resistance rope, a second movable pulley resistance rope, a first movable pulley, a second movable pulley, and a third movable pulley. The multifunctional fitness chair of the present invention is suitable for personal, family or office environments, has a small volume and low cost, and the traction rope structure is safer when applying force and returning. During the use of the fitness chair, the user sits on the chair, or stands on the ground behind the chair, or on a trainer connected and fixed to the chair as a whole, so that the chair, the user, the resistance device, and the multi-directional stretching mechanism form an overall balanced force system, which is not easy to produce overall displacement, solving the installation and fixation problem. There are multi-angle adjustable tension arms on both sides of the chair. The symmetrically arranged side arm stretching mechanisms are independent of each other and do not affect each other's movement. Each force arm can be pulled individually or simultaneously. The present invention is lightweight, occupies a small area, is installation-free, has low noise, a large resistance range, is convenient to adjust, and provides multiple resistance ropes at different positions to meet the multi-functional fitness needs, and will become a fitness equipment that better meets the needs of the public.

[0029] 4. In order to achieve the training purpose, fitness products must be able to provide sufficient torque and a stroke that meets the training needs. Due to the very limited space of this fitness chair itself, multiple groups of pulleys are used to achieve the purpose of increasing torque or lengthening the stroke. For example, the tension arms on both sides are each designed to increase torque, reducing the heat generation of resistors such as motors. The position of the movable pulley resistance rope is relatively low and is mainly used for leg or whole body exercises. The method of connecting two resistors such as motors at the same time can be used to increase torque while ensuring the stroke. Moreover, for the safety and reliability of the equipment, the movable pulley is designed to always be inside the backrest of the chair as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is the main view schematic diagram of the structural connection of the multifunctional fitness chair of the present invention;

[0031] Figure 2 is Figure 1 the schematic diagram of the sectional structural connection in the E-E direction of

[0032] Figure 3 is Figure 1 the left view schematic diagram of

[0033] Figure 4 is Figure 1 the bottom view schematic diagram of

[0034] Figure 5 is the three-dimensional structural connection schematic diagram of the multifunctional fitness chair of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0035] The present invention will be further described below in conjunction with embodiments. The following embodiments are narrative and not restrictive, and the protection scope of the present invention cannot be limited by the following embodiments.

[0036] For the various experimental operations involved in the specific embodiments, they are all conventional techniques in the art. For the parts not specifically annotated in this article, those of ordinary skill in the art can refer to various common reference books, scientific and technological literatures, or relevant specifications, manuals, etc. before the filing date of this invention application for implementation.

[0037] A multifunctional fitness chair, as Figures 1 to 5 shown, the fitness chair includes a chair body, a resistance device 27, and a multi-directional stretching mechanism. The chair body is arranged in the vertical direction. The chair body includes a seat 6, a backrest 3, and a tension arm 2. The seat is arranged in the horizontal direction, the backrest is arranged in the vertical direction, and the backrest is connected to the inner side of the horizontal end of the seat. The tension arm is arranged obliquely in the vertical direction. There are two tension arms, and the two tension arms are symmetrically connected in the longitudinal direction to the longitudinal end faces of the backrest. The tension arm can move up and down back and forth along the outer edge of the backrest and can be adjusted at multiple angles (the structure for this multiple-angle adjustment can adopt the commonly used structure in the prior art); the resistance device is arranged in the horizontal direction, and the resistance device is connected to the bottom of the seat; the multi-directional stretching mechanism is arranged in the vertical direction and is connected to the outer side of the horizontal end of the backrest. The multi-directional stretching mechanism includes a side-arm stretching mechanism, a fixed pulley group, and a horizontal stretching mechanism. The horizontal stretching mechanism is arranged in the vertical direction and is arranged in the middle and lower part of the backrest;

[0038] The fixed pulley group (not shown in the figure) is connected to the bottom of the side-arm stretching mechanism and the horizontal stretching mechanism. The fixed pulley group includes a fifth fixed pulley (not shown in the figure) and a sixth fixed pulley (not shown in the figure). One end of the side-arm stretching mechanism can be connected to the resistance device through the fifth fixed pulley. The other end of the side-arm stretching mechanism can pass through the tension arm and extend above the tension arm. By applying an external force to stretch the extended end of the side-arm stretching mechanism extending outside the tension arm, the resistance device can provide resistance, and the extended end of the side-arm stretching mechanism can be adjusted at multiple angles with the tension arm. When adjusted to the high position (i.e., the highest position) of the backrest, a downward pull movement can be performed. When adjusted to the low position (i.e., the lowest position) of the backrest, an upward pull movement can be performed;

[0039] One end of the horizontal stretching mechanism is connected to the side arm stretching mechanism. The horizontal stretching mechanism is connected to the resistance device through the side arm stretching mechanism. The other end of the horizontal stretching mechanism extends to the outside of the bottom of the seat through the sixth fixed pulley. The extended end of the horizontal stretching mechanism outside the seat can be detachably connected to an external stretching motion mechanism. When the stretching motion mechanism applies an external force to stretch the horizontal stretching mechanism, the horizontal stretching mechanism can adjust the stroke through the side arm stretching mechanism and provide resistance through the resistance device. Corresponding to different external stretching motion mechanisms, the user can perform rowing exercises, leg exercises and other limb exercises on the seat, while the seat is responsible for providing support, and the resistance device under the seat is responsible for providing resistance to the external stretching motion mechanism.

[0040] The multifunctional fitness chair of the present invention includes a chair body, a resistance device and a multi-directional stretching mechanism. The multi-directional stretching mechanism includes a side arm stretching mechanism, a fixed pulley group and a horizontal stretching mechanism. During use, each resistance rope can be pulled individually, and when a single resistance rope is pulled, a tension force is generated on the other resistance ropes. When an external force is applied to stretch the extended end of the side arm stretching mechanism, the resistance device can provide resistance. When the tension arm is adjusted to the high position of the backrest, a downward pulling motion can be performed, and when adjusted to the low position of the backrest, an upward pulling motion can be performed; the trainer can achieve the purpose of training major arm, chest and back muscles such as biceps brachii, trapezius, pectoralis major, triceps brachii, latissimus dorsi, deltoid, trapezius, etc.; when the external stretching motion mechanism is connected to the seat and an external force is applied to drive the stretching of the horizontal stretching mechanism, the resistance rope of the horizontal stretching mechanism will adjust the stroke through the side arm stretching mechanism and provide resistance through the resistance device. Corresponding to different external stretching motion mechanisms, the user can perform rowing exercises, leg exercises and other limb exercises on the seat, while the seat is responsible for providing support, and the resistance device under the seat is responsible for providing resistance to the external stretching motion mechanism, realizing a variety of exercise methods.

[0041] The multifunctional fitness chair of the present invention overcomes the deficiencies of the prior art and provides a fitness device that is scientifically designed, simple in structure, convenient to use, small in space occupation, low in running noise, low in cost, safe and reliable, can fully exercise major muscle groups such as the arms, chest, waist, thighs, and buttocks, and is easy to measure the total calorie consumption. Compared with traditional bulky fitness facilities, the present invention can be used as an ordinary seat without additional floor space. Compared with simple household fitness equipment, this product is powerful and professional.

[0042] In this embodiment, the tension arm is slidably connected to the chair back through a track 17. The track is arranged in the vertical direction. The tension arm can slide back and forth along the track, and a positioning rod (not shown in the figure) is arranged on the tension arm. The position of the tension arm on the track can be fixed through the positioning rod. When the tension arm is arranged towards the seat direction, it is mainly used for sitting posture training; when the tension arm is turned to the rear side of the chair back, it is mainly used for standing posture training; in addition, there is a horizontal stretching mechanism at the lower part of the seat that can be externally connected to a rowing machine or other exercise accessories to provide more training methods. The track provides a guiding function for the adjustment of the tension arm.

[0043] Preferably, the fitness chair further includes a rear plate. The rear plate includes a pedal 10 and a connecting rod 11. The pedal is arranged in the horizontal direction, and the connecting rod is arranged obliquely in the vertical direction. The pedal is connected to the bottom of the seat through the connecting rod. Preferably, the pedal and the connecting rod are movably hinged together, and the connecting rod and the bottom of the seat are movably hinged together. The hinge joints between the pedal and the connecting rod and between the connecting rod and the seat can be detachably connected to a locking device (not shown in the figure). During use, the hinge position can be locked by a quick tightening device, making the chair and the pedal rigidly connected. The pedal can be connected to the ground. When the tension arm is turned to the rear side of the chair back, a person stands on the pedal and pulls the tension arm, and a force-bearing whole can be formed between the person standing on it and the chair. The pedal plays a role in fixing the chair to prevent the chair from moving or tipping over.

[0044] In this embodiment, the side arm stretching mechanism includes a fixed pulley resistance rope 14, a first fixed pulley 16, a second fixed pulley 22, a third fixed pulley 25 and a wire wheel assembly 15. The fixed pulley resistance rope, the first fixed pulley, the second fixed pulley, the third fixed pulley, the wire wheel assembly and the fifth fixed pulley are all symmetrically arranged in two along the longitudinal direction. The fixed pulley resistance ropes arranged on the same side can be connected to the first fixed pulley, the second fixed pulley, the third fixed pulley and the wire wheel assembly. The wire wheel assembly is symmetrically and fixedly arranged on the outer side of the top of the chair back along the longitudinal direction. The wire wheel assembly can adjust the torque and the stroke of the resistance rope. The first fixed pulley is symmetrically arranged at the top of the middle part of the chair back along the longitudinal direction. The second fixed pulley is symmetrically and fixedly arranged on the upper part of the chair back between the wire wheel assembly and the first fixed pulley. The third fixed pulley is symmetrically and fixedly arranged at the middle and lower part of the chair back. One end of the fixed pulley resistance rope is connected to the fifth fixed pulley through the third fixed pulley arranged on the same side. The other end of the fixed pulley resistance rope sequentially passes through the second fixed pulley, the first fixed pulley and the wire wheel assembly arranged on the same side and extends to the outside of the tension arm. By applying an external force to pull the extended end of the fixed pulley resistance rope, the resistance device can provide resistance according to the applied tension, and adjust the torque generated by the wire wheel assembly and the stroke generated by the resistance rope to achieve the purpose of exercise. Since the symmetrically arranged side arm stretching mechanisms are connected by movable pulleys, when pulling one side arm stretching mechanism alone, only a tension force is generated on the other side, and the wire wheel will not be loosened. Therefore, they are independent of each other and their movements do not affect each other;

[0045] The horizontal adjustment structure includes a first movable pulley resistance rope 19, a second movable pulley resistance rope 21, a first movable pulley 23, a second movable pulley 18 and a third movable pulley 20. The first movable pulley is slidably arranged on the fixed pulley resistance rope between the first fixed pulley and the second fixed pulley arranged on the same side. The second movable pulley is slidably arranged on the fixed pulley resistance rope between the first fixed pulley and the second fixed pulley on the other longitudinal side. A first movable pulley resistance rope is connected between the first movable pulley and the second movable pulley, and a third movable pulley is arranged on the first movable pulley resistance rope. One end of the second movable pulley resistance rope is connected to the third movable pulley, and the other end of the second movable pulley resistance rope extends to the outside of the bottom of the seat through a sixth fixed pulley. By applying an external force to stretch the extended end of the second movable pulley resistance rope, the stroke can be adjusted through the fixed pulley resistance rope, and the resistance is provided by the resistance device to achieve the purpose of exercise.

[0046] The side arm stretching mechanism of the present invention includes a fixed pulley resistance rope, a first fixed pulley, a second fixed pulley, a third fixed pulley, and a wire wheel assembly. The horizontal adjustment structure includes a first movable pulley resistance rope, a second movable pulley resistance rope, a first movable pulley, a second movable pulley, and a third movable pulley. The multifunctional fitness chair of the present invention is suitable for personal, family or office environments, has a small volume and low cost, and the traction rope structure is safer when applying force and returning. During the use of the fitness chair, the user sits on the chair, or stands on the ground behind the chair, or on a trainer connected and fixed to the chair, so that the chair, the user, the resistance device, and the multi-directional stretching mechanism form an overall balanced force system, which is not prone to overall displacement and solves the installation and fixation problem. There are multi-angle adjustable tension arms on both sides of the chair. The symmetrically arranged side arm stretching mechanisms are independent of each other and their movements do not affect each other. Each arm can be pulled separately. The present invention is light, occupies little space, is installation-free, has low noise, a large resistance range, is convenient to adjust, and provides multiple resistance ropes at different positions to meet the multifunctional fitness needs, and will become a fitness equipment that better meets the needs of the public.

[0047] To achieve the training purpose, fitness products must be able to provide sufficient torque and a stroke that meets the training needs. Due to the very limited space of this fitness chair itself, multiple groups of pulleys are used to achieve the purpose of increasing torque or lengthening the stroke. For example, the tension arms on both sides are each designed to increase torque, reducing the heat generation of resistors such as motors. The position of the movable pulley resistance rope is relatively low and is mainly used for leg or whole body exercises. It can be designed to connect to two resistors such as motors at the same time, which not only increases the torque but also ensures the stroke. Moreover, for the safety and reliability of the equipment, the movable pulley is designed to always be inside the chair backrest during design.

[0048] In this embodiment, the fitness chair is further provided with a display device. The display device includes an adjustable connecting rod 5 and a display screen 4. One end of the adjustable connecting rod is connected to the display screen, and the other end of the adjustable connecting rod is connected to the chair body. The adjusting connecting rod can rotate around its connection point with the chair body, facilitating the viewing and use of the display. The display can also be set on the external horizontal stretching movement mechanism according to needs, which is more convenient and fast. The display screen can communicate with external devices. The external devices include tablets, mobile phones, AR, VR, and sports bracelets. The display screen is connected to the sports bracelet, and the display screen can display training parameters such as heart rate and energy consumption during exercise at any time; when connected to AR and VR devices, interesting fitness games can be added to make fitness a social activity for the public; when connected to a mobile phone, it can give motion prompts to the users of the fitness chair, and can also improve the professionalism and interest of fitness. In addition, a massage device can be added to the massage chair, so that some stretching exercises that require two people to cooperate can be completed by one person using this fitness chair.

[0049] In this embodiment, there are two resistors symmetrically arranged longitudinally, or the resistor is a servo motor or a linear motor. A motor wire reel (not shown in the figure) is provided inside the resistor, which can wind and unwind the fixed pulley resistance rope, facilitating the adjustment of resistance, consuming energy stably, measuring accurately, and having extremely low noise. In addition, the resistor is integrated into the chair, and its volume is similar to that of an ordinary chair, solving the problem of the additional space occupied by fitness products.

[0050] Preferably, the fixed pulley resistance rope is a steel wire rope, which is strong, firm, non-elastic, has strong tensile strength and is not easy to break.

[0051] In this embodiment, a handle 1 is connected to the other end of the fixed pulley resistance rope extending outside the tension arm. This handle facilitates stretching and can prevent the other end of the fixed pulley resistance rope from retracting into the inside of the tension arm, affecting the use and causing inconvenience.

[0052] Preferably, a buckle 29 is connected to the other end of the second movable pulley resistance rope extending outside the bottom of the seat. This buckle can be detachably connected to an external stretching exercise mechanism. The stretching exercise mechanism includes a rowing machine, which not only facilitates the connection between the fitness chair and the external device but also increases the exercise function of the fitness chair.

[0053] In this embodiment, the wire reel assembly includes a large wheel 24 and a small wheel 26. The small wheel is coaxially sleeved and connected inside the large wheel. The large wheel is connected to the fixed pulley resistance rope close to the first fixed pulley, and the small wheel is connected to the fixed pulley resistance rope close to the tension arm. The large wheel and the small wheel can rotate along their central axes, and the rotation ratio of the large wheel to the small wheel is 1:1.5 - 1:10. The large and small wheels can be arranged coaxially or connected by a belt or a chain. When arranged coaxially, the large and small wire reels rotate at the same speed, the linear velocity of the resistance rope fixed to the large wire reel increases, and the torque decreases; when the large and small wire reels are connected by a belt or a chain, due to different outer diameters, a reduction ratio will also be generated, causing a change in torque.

[0054] In this embodiment, an open slot 12 is provided at the bottom of the seat, and a positioning hole 13 is provided outside the open slot. The rowing machine includes a rowing machine pull rod 7, a resistance rope 8, a support foot 9, a connecting rod 30, and a positioning pin 28. The support foot of the rowing machine is connected to the ground, which plays an auxiliary supporting role. The connecting rod of the rowing machine can be connected to the positioning hole of the seat through the positioning pin. One end of the resistance rope of the rowing machine is connected to the rowing machine pull rod, and the other end of the resistance rope can be connected to the buckle through the open slot to complete the connection between the rowing machine and this fitness chair.

[0055] A usage method of the multifunctional fitness chair as described above includes the following steps:

[0056] (1) Adjust the pulling force arm to the high position of the backrest track (i.e., the highest point of the backrest track), apply an external force to stretch the extended end of the side arm stretching mechanism (i.e., the other end of the fixed pulley resistance rope extending outside the pulling force arm), and the resistance device can provide resistance to perform a downward pulling movement;

[0057] (2) Adjust the pulling force arm to the low position of the backrest track (i.e., the lowest point of the backrest track), apply an external force to stretch the extended end of the side arm stretching mechanism (i.e., the other end of the fixed pulley resistance rope extending outside the pulling force arm), and the resistance device can provide resistance to perform an upward pulling movement;

[0058] Alternatively, when the pulling force arm is adjusted to the side direction of the seat, the person applying the external force can sit on the seat for training;

[0059] Alternatively, when the pulling force arm is adjusted to the backrest side direction, the person applying the external force can stand on the backrest side for training;

[0060] (3) Connect the externally connected stretching motion mechanism to the extended end (i.e., the other end of the second movable pulley resistance rope extending outside the bottom of the seat). Corresponding to different externally connected stretching motion mechanisms, the user can perform rowing motions, leg motions, and other limb motions on the seat, while the seat is responsible for providing support, and the resistance device under the seat is responsible for providing resistance to the externally connected stretching motion mechanism.

[0061] A working principle of the multifunctional fitness chair as described above can be:

[0062] By applying an external force to stretch the extended end of the side arm stretching mechanism (i.e., the other end of the fixed pulley resistance rope extending outside the pulling force arm), the resistance device can provide resistance, and the torque and stroke are adjusted by the large and small wheels. The user adjusts the position of the pulling force arm on the backrest to be able to achieve downward and upward pulling motions, thereby achieving the purpose of training the biceps brachii, trapezius muscle, pectoralis major, triceps brachii, latissimus dorsi, deltoid muscle, trapezius muscle and other main arm, chest and back muscles; by connecting the stretching motion mechanism and the horizontal stretching mechanism, when an external force is applied to stretch the horizontal stretching mechanism, the horizontal stretching mechanism can adjust the stroke through the side arm stretching mechanism, provide resistance through the resistance device and obtain an amplified resistance value through the side arm stretching mechanism. By using different externally connected stretching motion mechanisms, rowing motions, leg raising, pressing down, etc. are realized, thereby achieving the purpose of exercising the rectus femoris and vastus lateralis.

[0063] Although the embodiments of the present invention are disclosed for illustrative purposes, those skilled in the art can understand that: various substitutions, changes, and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the content disclosed in the embodiments.

Claims

1. A multifunctional fitness chair, characterized in that: The fitness chair includes a chair body, a resistance device, and a multi-directional stretching mechanism. The chair body is arranged vertically. The chair body includes a seat, a backrest, and a tension arm. The seat is arranged horizontally, the backrest is arranged vertically, and the backrest is connected to the inner side of the horizontal end of the seat. The tension arm is arranged obliquely vertically. There are two tension arms, and the two tension arms are symmetrically connected longitudinally to the longitudinal end faces of the backrest. The tension arm can move up and down back and forth along the outer edge of the backrest and can be adjusted at multiple angles. The resistance device is arranged horizontally and is connected to the bottom of the seat. The multi-directional stretching mechanism is arranged vertically and is connected to the outer side of the horizontal end of the backrest. The multi-directional stretching mechanism includes a side arm stretching mechanism, a fixed pulley group, and a horizontal stretching mechanism. The horizontal stretching mechanism is arranged vertically and is arranged at the middle and lower part of the backrest. The fixed pulley group is connected to the bottom of the side arm stretching mechanism and the horizontal stretching mechanism. The fixed pulley group includes a fifth fixed pulley and a sixth fixed pulley. One end of the side arm stretching mechanism can be connected to the resistance device through the fifth fixed pulley. The other end of the side arm stretching mechanism can pass through the tension arm and extend above the tension arm. When an external force is applied to stretch the extended end of the side arm stretching mechanism extending outside the tension arm, the resistance device can provide resistance, and the extended end of the side arm stretching mechanism can be adjusted at multiple angles with the tension arm. When adjusted to the high position of the backrest, a downward pulling movement can be performed. When adjusted to the low position of the backrest, an upward pulling movement can be performed. One end of the horizontal stretching mechanism is connected to the side arm stretching mechanism. The horizontal stretching mechanism is connected to the resistance device through the side arm stretching mechanism. The other end of the horizontal stretching mechanism extends outside the bottom of the seat through the sixth fixed pulley. The extended end of the horizontal stretching mechanism extending outside the seat can be detachably connected to an external stretching movement mechanism. When the stretching movement mechanism applies an external force to stretch the horizontal stretching mechanism, the horizontal stretching mechanism can adjust the stroke through the side arm stretching mechanism and provide resistance through the resistance device.

2. The multifunctional fitness chair according to claim 1, wherein: The tension arm is slidably connected to the backrest through a track. The track is arranged vertically. The tension arm can slide back and forth along the track, and a positioning rod is arranged on the tension arm. The position of the tension arm on the track can be fixed through the positioning rod.

3. The multifunctional fitness chair according to claim 1, characterized in that: The fitness chair further includes a rear plate. The rear plate includes a pedal and a connecting rod. The pedal is arranged horizontally, the connecting rod is arranged obliquely vertically, and the pedal is connected to the bottom of the seat through the connecting rod. Alternatively, the pedal and the connecting rod are movably hinged together, the connecting rod and the bottom of the seat are movably hinged together, and the hinge connections between the pedal and the connecting rod and between the connecting rod and the seat can be detachably connected to a locking device.

4. The multifunctional fitness chair according to claim 1, characterized in that: The side arm stretching mechanism includes a fixed pulley resistance rope, a first fixed pulley, a second fixed pulley, a third fixed pulley, and a wire wheel assembly. The fixed pulley resistance rope, the first fixed pulley, the second fixed pulley, the third fixed pulley, the wire wheel assembly, and the fifth fixed pulley are all symmetrically arranged in two along the longitudinal direction. The fixed pulley resistance ropes arranged on the same side can be connected to the first fixed pulley, the second fixed pulley, the third fixed pulley, and the wire wheel assembly. The wire wheel assembly is symmetrically and fixedly installed on the outer side of the top of the chair back along the longitudinal direction. The first fixed pulley is symmetrically arranged along the longitudinal direction at the top of the middle part of the chair back. The second fixed pulley is symmetrically and fixedly installed on the upper part of the chair back between the wire wheel assembly and the first fixed pulley. The third fixed pulley is symmetrically and fixedly installed on the middle and lower part of the chair back. One end of the fixed pulley resistance rope is connected to the fifth fixed pulley through the third fixed pulley arranged on the same side. The other end of this fixed pulley resistance rope sequentially passes through the second fixed pulley, the first fixed pulley, and the wire wheel assembly arranged on the same side and extends to the outside of the tension arm. By applying an external force to pull the extended end of the fixed pulley resistance rope, the resistance device can provide resistance according to the applied tension, and adjust the generated torque and the stroke generated by the resistance rope through the wire wheel assembly. The horizontal stretching mechanism includes a first movable pulley resistance rope, a second movable pulley resistance rope, a first movable pulley, a second movable pulley, and a third movable pulley. The first movable pulley is slidably arranged on the fixed pulley resistance rope between the first fixed pulley and the second fixed pulley arranged on the same side. The second movable pulley is slidably arranged on the fixed pulley resistance rope between the first fixed pulley and the second fixed pulley on the other longitudinal side. A first movable pulley resistance rope is connected between the first movable pulley and the second movable pulley. A third movable pulley is arranged on this first movable pulley resistance rope. One end of the second movable pulley resistance rope is connected to the third movable pulley. The other end of this second movable pulley resistance rope extends to the outside of the bottom of the seat through the sixth fixed pulley. The stroke can be adjusted through the fixed pulley resistance rope, and resistance can be provided through the resistance device by applying an external force to stretch the extended end of the second movable pulley resistance rope.

5. The multifunctional fitness chair according to claim 1, characterized in that: The fitness chair is also provided with a display device. The display device includes an adjustable connecting rod and a display screen. One end of the adjustable connecting rod is connected to the display screen. The other end of this adjustable connecting rod is connected to the chair body. The adjusting connecting rod can rotate around its connection point with the chair body.

6. The multi-functional fitness chair according to claim 4, wherein: There are two resistance devices symmetrically arranged along the longitudinal direction. Or, the resistance device is a servo motor or a linear motor. A motor wire wheel is arranged inside the resistance device and can wind and unwind the fixed pulley resistance rope. Or, the fixed pulley resistance rope is a steel wire rope.

7. The multifunctional fitness chair according to claim 4, wherein: A handle is connected to the other end of the fixed pulley resistance rope extending to the outside of the tension arm. Or, a buckle is connected to the other end of the second movable pulley resistance rope extending to the outside of the bottom of the seat. The buckle can be detachably connected to an external stretching exercise mechanism. The stretching exercise mechanism includes a rowing machine.

8. The multi-functional fitness chair according to claim 4, characterized in that: The wire wheel assembly includes a large wheel and a small wheel. The small wheel is coaxially sleeved and connected inside the large wheel. The large wheel is connected to the resistance rope of the pulley close to the first fixed pulley. The small wheel is connected to the resistance rope of the pulley close to the tension arm. The large wheel and the small wheel can rotate along their central axes, and the rotation ratio of the large wheel to the small wheel is 1:1.5 to 1:

10.

9. The multifunctional fitness chair according to claim 7, characterized in that: An opening card slot is provided at the bottom of the seat, and positioning holes are provided on the outer side of the opening card slot. The rowing machine includes a rowing machine pull rod, a resistance rope, a support foot, a connecting rod, and a positioning pin. The support foot of the rowing machine is connected to the ground and serves as an auxiliary support. The connecting rod of the rowing machine can be connected to the positioning hole of the seat through the positioning pin. One end of the resistance rope of the rowing machine is connected to the rowing machine pull rod, and the other end of the resistance rope can be connected to the buckle through the opening card slot to complete the connection between the rowing machine and the fitness chair.

10. The usage method of the multifunctional fitness chair according to any one of claims 4 to 9 includes the following steps: (1) Adjust the tension arm to the high position of the backrest track, apply an external force to stretch the extended end of the side arm stretching mechanism, and the resistance device can provide resistance for a downward pulling movement. (2) Adjust the tension arm to the low position of the backrest track, apply an external force to stretch the extended end of the side arm stretching mechanism, and the resistance device can provide resistance for an upward pulling movement. Alternatively, when the tension arm is adjusted to the side direction of the seat, the person applying the external force can sit on the seat for training. Alternatively, when the tension arm is adjusted to the side direction of the backrest, the person applying the external force can stand on the side of the backrest for training. (3) Connect the external stretching movement mechanism to the extended end. Corresponding to different external stretching movement mechanisms, the user can perform rowing, leg movement, and other limb movements on the seat, while the seat is responsible for providing support, and the resistance device under the seat is responsible for providing resistance to the external stretching movement mechanism.

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