CN109011330A - It is a kind of rope driving collapse multifunctional body-building device - Google Patents

Abstract

The invention belongs to the technical field of physical exercise equipment, and discloses a cord-driven foldable multifunctional fitness device, a foldable support fixed to the outside for folding and folding the main body of the fitness device, which is a support structure for a sports support, and is connected with the foldable support The sliding link of the seat is a truss-type supporting bracket that can be folded and folded through its own hinge structure; it is a sports bracket that is slidingly connected to the supporting bracket and can realize various fitness functions by changing the connected fitness module; the rope power system is connected with the folding support in a specific way The seat, the support bracket, and the exercise bracket are connected to realize the folding function and the fitness function of the fitness device. Compared with traditional fitness equipment, the present invention can realize the functions of various fitness equipments, including weightlifting equipment, tension equipment, dumbbells, etc., and can also realize the functions of multiple free training such as pull-up training and sit-up training; using servo motors Combined with the force sensor to intelligently adjust the exercise resistance instead of adjusting the weight, the exercise is more efficient.

Description

A cord-driven foldable multifunctional fitness device

technical field

The invention belongs to the technical field of physical exercise equipment, and in particular relates to a foldable multifunctional fitness equipment driven by a rope.

Background technique

At present, the commonly used existing technologies in the industry are as follows: with the continuous improvement of living standards, people pay more and more attention to their own health conditions. Exercise and fitness can improve body shape, be beneficial to health, delay aging, be energetic, and increase self-confidence. To make people fully adapt to the increasingly fast pace of modern urban life, the increasingly fierce social competition, and the increasingly diversified material and spiritual needs. Fitness plays a very important role for everyone, but in order to achieve a good fitness effect, it is necessary to use treadmills, spinning bikes, weightlifters, tensioners, dumbbells and other equipment in combination with aerobic and anaerobic exercises to exercise different muscle groups. However, the existing professional fitness equipment has an integrated structure with a large volume and does not have the function of folding and folding. Although such a design is simple in structure and low in cost, it has a single function. If you need to achieve a good fitness effect, you must buy more Various types of fitness equipment require a large floor area and a large capital investment, which is not suitable for family and office fitness needs. The structure of each fitness equipment itself is very large, such as treadmills, elliptical machines, chest presses, rowing machines, etc., and a single equipment occupies almost two square meters.

To sum up, the problems in the prior art are: most of the existing fitness equipments are large in size and single in function; there are many kinds of fitness equipments purchased, the prices are high, and they occupy a large area, making it inconvenient to place them.

The difficulty and significance of solving the above technical problems:

1. The fitness device of the present invention is a truss structure. Through the rotation of the joints, the function of automatic folding and folding can be realized, and the rod structure of the truss needs to be specially designed to solve the problem that the rods interfere with each other and cannot be completely folded during the folding process. High shrinkage ratio. The fitness device takes up less space after being folded, and has a neat and beautiful effect. It is suitable for environments with small activity spaces such as homes and offices.

2. The fitness device of the present invention uses a rope plus motor drive system, and it is necessary to arrange guide wheels and force sensors at places such as rotating joints, and establish a complete rope path inside the device. The rope drive system takes up less space than the drive system using gears, lead screws, etc., has a small mass, and has a smaller load on the power system. At the same time, the device uses a combination of servo motors and force sensors to intelligently adjust exercise resistance instead of adjusting weights, making exercise more efficient. And it has a brake function, which can avoid sports injuries during exercise, which is safer and more reliable.

3. The joint of the universal rope of the present invention can be combined with different fitness function modules to realize different fitness functions, such as fitness chairs, fitness pedals, treadmills, etc., using this device can realize the fitness effects of various fitness devices, The functions are more comprehensive and the applicability is wider.

Contents of the invention

Aiming at the problems existing in the prior art, the present invention provides a cord-driven foldable multifunctional fitness device.

The present invention is achieved in this way, a rope-driven foldable multi-functional fitness device, said rope-driven foldable multi-functional fitness device includes:

The folding support fixed to the outside for the main body of the fitness device is a support structure for the movement bracket, and is slidably linked with the folding support, and is a truss-type support bracket that can be folded and folded through its own hinge structure;

Slidingly connected to the supporting bracket, by changing the connected fitness module, a sports bracket that realizes various fitness functions;

The rope power system is connected with the retracting support, the support bracket and the exercise bracket in a specific way, so as to realize the retracting function and the fitness function of the fitness device.

Further, the folded support includes: a base, two support vertical bars, several support cross bars, and weight blocks;

The base is a flat structure such as "concave" or "H". The position of the vertical bar of the support is fixed with a load-bearing block, which is used to stably fold the support;

The middle position of the base is connected with a first rope drive mechanism, which is used as a power source for folding and folding of the fitness device; the chute of the vertical rod of the support is matched with the slider of the support rod of the support bracket;

A fixed structure is installed at the position where the vertical bar of the support is in contact with the external wall and ceiling, which is used to increase the stability of the fitness device;

Several support cross bars are fixedly connected between two support vertical bars to increase the stiffness of the folded support;

There are rope grooves inside the base and the vertical bar of the support, and the ports of the two rope grooves are connected. There are fixed pulleys or rope rings at the junction of the vertical bar of the support and the rope groove of the base, and the top of the vertical bar of the support.

Further, the support bracket includes a set of platforms, a set of support rods, and a set of top support frames;

The movement platform of the platform is a flat hollow hexahedron structure, with protrusions at both ends of the bottom, forming a "convex" shaped structure with a large bottom and a small top. The second rope drive mechanism and the third rope drive mechanism are installed inside. There are 4 first outer ear plates installed on the motion platform, and a through hole is opened at the connection part between the bottom and the motion platform;

The two first outer ear plates are installed at both ends of the top of the motion platform, and the axis direction is parallel to the ground; the first outer ear plate is equipped with the first platform pulley block; the other two first outer ear plates are installed on the top of the protruding part of the bottom of the motion platform, The axis direction is parallel to the ground; the second platform pulley block installed inside the first outer ear plate includes 2 independent fixed pulleys;

A plurality of rollers for supporting and folding are installed near the bottom of the exercise platform, and a boss capable of supporting the fitness device together with the rollers is installed on the bottom of the exercise platform.

Further, the top support frame has the same "convex" structure as the motion platform, and is composed of pipes of corresponding length and a support platform fixedly;

The height of each support platform is greater than twice the diameter of the pipe, and the bottom surface of each support platform is fixedly connected with the second outer ear plate 2; both ends of the first support beam are fixedly connected with the sides of the support platform, and the bottom surfaces of the two support platforms are fixed with the second outer ear plate Two outer ear plates, the axial direction of which is parallel to the axial direction of the first support beam; the distance between the two second outer ear plates connected at both ends of the first support beam is the same as the distance between the two first outer ear plates installed on the top of the motion platform;

The inside of the second outer ear plate is equipped with the first support frame pulley block 1 composed of two independent pulleys; the two ends of the second support beam are fixedly connected to the side of the support platform, and the second outer ear plate is fixedly connected to the bottom surface of the two support platforms. Its axis direction is parallel to the axis direction of the second support beam;

The distance between the two second ear plates connected at both ends of the second support beam is the same as the distance between the two first ear plates installed at the bottom of the motion platform; the second ear plate is installed inside the second ear plate composed of an independent pulley. The pulley block of the support frame; two third support beams are perpendicular to the first support beam, and one end is fixed on the two sides of the second outer ear plate to which the first support beam is fixed, and the other end is symmetrically fixed to the second support beam, so that the support frame The quadrilateral formed by the four second outer ear plates is exactly the same as the quadrilateral formed by the four first outer ear plates on the moving platform.

Further, the support rod includes a first support rod, a second support rod, inner ear plate 1, and a support rod slider;

Both the first support rod and the second support rod have the same hollow tubular structure, and their two ends are fixedly connected to the bottom surface of the first inner ear plate respectively, and a through hole is opened at the bottom of the first inner ear plate; The first inner ear plate is hinged with the second outer ear plate connected to the first support beam and the first outer ear plate at the top of the motion platform; the first inner ear plates at both ends of the two second support rods are respectively connected with the second outer ear plate of the second support beam The plate and the first outer ear plate at the raised part of the bottom of the motion platform are hinged; and a support rod slider is installed at the position close to the first inner ear plate at both ends of the two first support rods, which cooperate with the support vertical rod of the folded support , forming a mobile pair.

Further, the motion platform, the top support frame, and the support rod together constitute a hexahedral rotatable truss structure;

The truss structure formed by the first support rod, the third support beam, the second support rod and the motion platform is equivalent to a parallelogram mechanism;

The motion support includes: a first motion beam, a second motion beam, a third motion beam, a first motion connector, a second motion connector, a third outer ear plate, a motion pulley, a single ear plate, a second inner ear plate, Module connectors, rope connection loops and fitness modules;

The first moving beam, the second moving beam and the third moving beam are all hollow pipes, which form a "convex" frame structure together with the first moving connecting piece and the second moving connecting piece; both ends of the first moving beam are fixed on the The side of the first kinematic connector is parallel to the first support beam, and the first kinematic connector at both ends cooperates with the first support rod to form a moving pair; the side of the first kinematic connector close to the bottom of the motion platform is equipped with the third outer ear plate , the movement pulley is installed inside the third outer ear plate, and the axis direction of the movement pulley is the same as the axis direction of the first movement beam; the two second movement connectors respectively form a movement pair with the second support rod, and the side near the bottom of the movement platform is equipped with Single lug, the axial direction of the single lug is the same as the axis of the first moving beam, and the height of the axis of the single lug is the same as that of the third outer lug three;

The two ends of the second moving beam are hinged at the axial center of the single ear plate, parallel to the first moving beam; two third moving beams are perpendicular to the first moving beam, and the second inner ear plate with a through hole at the bottom fixed at one end is connected to the second inner ear plate with a through hole. The third outer ear plate of the first movement link is hinged, and the other end is directly fixed to the second movement beam;

A module connector is installed in the middle of the third movement beam, with different interfaces, which can be connected to different fitness modules for exercise and fitness; a rope connection is symmetrically installed on the third movement beam at a certain position from the module connection The ring is used for connecting the rope with the sports bracket to realize the function of fitness.

Further, the rope power system includes a controller, several groups of rope driving mechanisms, and each group of rope driving mechanisms is composed of a servo motor, a force sensor and several ropes, so as to realize the function of folding and unfolding of the fitness device and the function of fitness exercise;

The controller is installed in the middle of the vertical rod of the support, and controls various functions of the fitness device for operation;

The first rope driving mechanism includes a first servo motor, a first force sensor and 2 sets of first ropes, which are used for folding and unfolding the fitness device; the first servo motor and the first force sensor are packaged in the middle of the base of the folding support, 2 One end of the set of ropes is wound on the winding reel of the first servo motor, and the other end is bypassed by the first force sensor, respectively along the wire groove of the base to the two sides of the base and bypassing the pulley at the junction of the wire groove of the support vertical rod, and then Go through the pulley on the top of the support vertical bar along the line slot inside, and connect with the support bar slider on the top of the first support bar along the chute; the servo motor of the first rope drive mechanism rotates to drive the support bar slider along the Support vertical rod movement;

The second rope driving mechanism includes 2 sets of servo motors, force sensors and 8 sets of ropes, which are used to drive the movement of the moving bracket;

Among them, one set of second servo motors and second force sensors are packaged at the central axis position of the motion platform; one end of four sets of second ropes is wound on the winding reel of the second servo motors, and the other end is bypassed by the second force sensors, wherein The two ropes pass through the interior of the motion platform, respectively bypass the first platform pulley block at the joint between the motion platform and the two first support rods, pass through the interior of the first support rod, and then bypass the hinge between the first support rod and the top support frame The pulley block of the first support frame is respectively fixed on the top of the rope connecting ring of the two third moving beams close to the first supporting rod; one end of the other two ropes passes through the inside of the moving platform, respectively bypassing the moving platform and the two third moving beams. The second platform pulley group at the hinge of the two support rods passes through the inside of the second support rod, and then bypasses the second support rod and the second support frame pulley group hinged on the top support frame, and is respectively fixed on the two third moving beams. the top of the rope connection ring of the second support rod;

Another group of the third servo motor and the third force sensor are packaged at the center axis of the motion platform; one end of the four sets of ropes is wound on the winding reel of the third servo motor, and the other end is bypassed by the third force sensor, two of which are The rope passes through the interior of the motion platform, respectively bypasses the first platform pulley block at the hinge joint between the motion platform and the two first support rods, and is fixed on the bottom of the rope connection ring near the first support rod on the two third motion beams; the other two One end of the root rope passes through the interior of the motion platform, respectively bypasses the second platform pulley block 2 at the hinge joint between the motion platform and the two second support rods, and is fixed on the rope connection rings of the two third motion beams close to the second support rods bottom;

The third rope drive mechanism includes 2 sets of servo motors and force sensors, and 2 sets of ropes, which are used to drive the fitness module of the fitness device; the 2 sets of servo motors and force sensors are symmetrically packaged in two positions at a certain distance from the central axis of the motion platform; A group of fourth rope four ends are wound on the winding reel of the fourth servo motor, bypass the fourth force sensor, pass through the interior of the motion platform, and bypass the first platform pulley block at the hinge joint between a motion platform and the first support rod , passing through the inside of the first support rod, bypassing the first pulley set hinged by the first support rod and the top support frame, then bypassing the motion pulley, passing through the inside of the connected third motion beam, and finally movably connected to the module connector On; another group of the fifth servo motor, the fifth force sensor and the fifth rope are installed symmetrically therewith.

Another object of the present invention is to provide a dumbbell fitness device, the dumbbell fitness device is connected with a puller handle on the modular connection part of the foldable multifunctional fitness device driven by the rope, and the movement bracket III moves to the corresponding position of the support bar. s position.

Another object of the present invention is to provide a fitness chair connected to the fitness module of the cord-driven foldable multifunctional fitness device.

Another object of the present invention is to provide a weight lifter that is connected to the exercise module of the cord-driven collapsible multifunctional exercise device.

In summary, the advantages and positive effects of the present invention are: the present invention solves the limitations of traditional fitness equipment and achieves a good fitness effect; it can not only realize the functions of various fitness equipment, including weightlifters, tensioners, dumbbells, etc. It can also realize a variety of free training functions such as pull-up training and sit-up training; the device uses a combination of servo motors and force sensors to intelligently adjust exercise resistance, instead of adjusting the weight of traditional fitness equipment, and has The brake function can avoid sports injuries during exercise, which is safer and more reliable; the overall structure of the device is a truss structure, which can realize the function of automatic folding and folding, effectively saving storage space; the platform of the device can also add a variety of fitness equipment according to needs. Modules, such as fitness pedals, treadmills, etc., have more comprehensive functions and wider applicability.

Compared with traditional fitness equipment, the present invention can realize the functions of various fitness equipments, including weightlifting equipment, tension equipment, dumbbells, etc., and can also realize the functions of multiple free training such as pull-up training and sit-up training; using servo motors Combined with the force sensor to intelligently adjust the exercise resistance instead of adjusting the weight, the exercise is more efficient. And it has a brake function, which can avoid sports injuries during exercise, and is safer and more reliable; the drive system adopts a rope-driven method, which makes the fitness device simple in structure, light in weight, and small in size; the overall structure of the fitness device is a truss structure, which can Realize the function of automatic folding and folding, and the design of the device structure can make it take up less space after folding; it can also add a variety of fitness modules according to needs, such as fitness chairs, fitness pedals, treadmills, etc., with more comprehensive functions and more applicability wide.

Description of drawings

Fig. 1 is a structural schematic diagram of a rope-driven foldable multifunctional fitness device provided by an embodiment of the present invention;

In the figure: (a) the front view of the fitness device; (b) the axial side view of the fitness device; (c) the folded front view of the fitness device; (d) the folded axial side view of the fitness device.

Fig. 2 is an axial side view of the folded support of the fitness device provided by the embodiment of the present invention.

Fig. 3 is a schematic diagram of the support bracket structure of the fitness device provided by the embodiment of the present invention;

In the figure: (a) bottom view of the motion platform; (b) axial side view of the top support frame; (c) side view of the first support rod; (d) top view of the second support rod.

Fig. 4 is a top view of the exercise bracket of the fitness device provided by the embodiment of the present invention.

Fig. 5 is a schematic structural diagram of the rope power system of the fitness device provided by the embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a fitness module of a fitness device provided by an embodiment of the present invention;

In the figure: (a) side view of the snatch bar shaft; (b) side view of the tensioner handle shaft.

In Fig. 1-Fig. 5: 1. base; 2. support vertical bar; 3. support cross bar; 4. weight block; , second platform pulley block; 9, roller; 10, boss; 11, first support beam; 12, second support beam; 13, third support beam; 14, support platform; 15, second outer ear plate; 16, The first support frame pulley block; 17, the second support frame pulley block; 18, the first support rod; 19, the second support rod; 20, the first inner ear plate; 21, the support rod slider; 22, the first moving beam; 23 , the second movement beam; 24, the third movement beam; 25, the first movement connector; 26, the second movement connector; 27, the third outer ear plate; 28, the movement pulley; 29, single ear plate; 30, the first Two inner ear plates; 31. Module connector; 32. Rope connecting ring; 33. Fitness module; 3301. Snatch bar; 3302. Puller handle; 34. Controller; 35. The first rope drive mechanism; 3501. The first servo motor ; 3502, the first force sensor; 3503, the first rope; 36, the second rope drive mechanism; 3601, the second servo motor; 3602, the second force sensor; 3603, the second rope; 3604, the third servo motor; 3605 , the third force sensor; 3606, the third rope; 37, the third rope drive mechanism; 3701, the fourth servo motor; 3702, the fourth force sensor; 3703, the fourth rope; 3704, the fifth servo motor; 3705, the first Five force sensors; 3706, the fifth rope.

Detailed ways

In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Aiming at the problems that most of the existing fitness equipments are large in size and single in function; there are many kinds of fitness equipments purchased, the price is high, and the occupied area is large, so it is inconvenient to place excessively. The present invention can effectively realize various equipment training functions such as snatch training and pulling training, as well as various free training functions such as pull-ups and sit-ups, and can also add fitness modules according to actual needs.

The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in FIG. 1 , the rope-driven foldable multifunctional fitness device provided by the embodiment of the present invention includes: a foldable support fixed to the outside for folding the main body of the fitness device. As the supporting structure of the moving bracket, it is slidably linked with the folding support, and is a truss-type supporting bracket that can be folded and folded through its own hinge structure. Slidingly connected to the supporting bracket, by changing the connected fitness module, it is a sports bracket that realizes various fitness functions. Among them, the rope power system is connected with the retracting support, the support bracket, and the movement bracket in a specific manner, so as to realize the retracting function and the fitness function of the fitness device.

As shown in Figure 2, the folded support is composed of a base 1, two support vertical bars 2, several support cross bars 3 and weight blocks 4, etc. Base 1 is a flat structure such as "concave" or "H", its bottom surface is fixed to the ground, and the corner position of the upper surface is symmetrically fixed to two support vertical rods 2, which are used for folding and folding of fitness equipment. A load-bearing block 4 is fixedly connected to a position close to the support vertical rod 2 on the upper surface of the base 1 for stably folding the support. At the same time, a first rope driving mechanism 35 is connected to the middle position of the base 1 as a power source for folding and folding the fitness device. The chute of the support vertical bar 2 cooperates with the support rod slide block 21 of the support bracket to constrain the degree of freedom so that the support rod slide block 21 can only move along its axial direction. A fixed connection structure is installed at the position where the support vertical bar 2 contacts with the external wall and ceiling, which is used to increase the stability of the fitness device. Several support cross bars 3 are fixedly connected between two support vertical bars 2 to increase the stiffness of the folded support. Among them, there are rope grooves inside the base 1 and the support vertical bar 2, and the ports of the two rope grooves are connected, and there are fixed pulleys at the junction of the support vertical bar 2 and the base 1 rope groove, and the top of the support vertical bar 2 or rope loops.

As shown in Figure 1 and Figure 3, the support bracket is composed of a set of platforms, a set of support rods and a set of top support frames. When unfolded, it can provide a hexahedron frame structure-like activity space for training exercises; when folded, it can rotate around its own hinge under the traction of the first rope drive mechanism 35, and at the same time move linearly along the support vertical rod 2 of the folded support , to realize the folding and folding of the fitness device, saving space.

As shown in Figure 3(a), the moving platform 5 of the platform is a flat and hollow hexahedron structure, and there are protrusions at both ends of the bottom to form a "convex"-shaped structure with a large bottom and a small top, and a second rope drive is installed inside it. Mechanism 36, third rope drive mechanism 37. Four first outer ear plates 6 are installed on the motion platform 5 , and a through hole is provided at the connection part between the bottom and the motion platform 5 as a rope passage. Wherein, the two first outer ear plates 6 are installed at both ends of the top position of the motion platform 5, and the axis direction is parallel to the ground. The first platform pulley block 7 is housed inside the first outer ear plate 6 at this place, and this pulley block is made up of 3 independent fixed pulleys. The other two first outer ear plates 6 are installed on the raised top of the bottom of the motion platform 5, and the axis direction is parallel to the ground. The second platform pulley block 8 installed inside the first outer ear plate 6 here includes 2 independent fixed pulleys. A plurality of rollers 9 for supporting and gathering are installed at the position where the bottom of the exercise platform 5 intersects with the bottom surface, and the bottom surface of the exercise platform 5 is also equipped with a boss 10 that can support the fitness device together with the rollers 9 . The motion platform 5 can be added to form a mobile auxiliary fitness chair, which can realize more types of exercise.

As shown in Figure 3 (b), the top support frame is the same "convex" shape structure as the motion platform 5, which is mainly composed of pipes of corresponding length and support platforms 14; each support platform 14 needs to have a certain height ( The height is greater than twice the pipe diameter), and the bottom surface of each support platform 14 is fixedly connected with a second outer ear plate 15. The two ends of the first support beam 11 are fixedly connected to the sides of the support platform 14, and the second outer ear plates 15 are fixedly connected to the bottom surfaces of the two support platforms 14, the axis direction of which is parallel to the axis direction of the first support beam, and the first support beam 11 The distance between the two second ear plates 15 connected at both ends is the same as the distance between the two first ear plates 6 installed on the top of the motion platform 5 . The inside of the second outer ear plate 15 is equipped with a first support frame pulley block 16 composed of two independent pulleys. The two ends of the second support beam 12 are affixed to the side of the support platform 14, and the second outer ear plate 15 is fixed on the bottom surface of the two support platforms 14, the axis direction of which is parallel to the axis direction of the second support beam, and the second support beam 12 The distance between the two second ear plates 15 connected at both ends is the same as the distance between the two first ear plates 6 installed at the bottom of the motion platform 5 . The inside of the second outer ear plate 15 is installed with a second support frame pulley block 17 composed of an independent pulley. Two third support beams 13 are perpendicular to the first support beam 11, and one end is fixed to the first support beam 11 The side of the fixed second outer ear plate 15 is symmetrically fixed at the other end to the second support beam 12, so that the quadrilateral formed by the four second outer ear plates 15 on the support frame and the four first outer ear plates 6 on the moving platform 5 are formed. The quads are exactly the same.

As shown in Fig. 3(c) and Fig. 3(d), the support rod is composed of a first support rod 18, a second support rod 19, a first inner ear plate 20, a support rod slider 21 and the like. Both the first support rod 18 and the second support rod 19 are of the same hollow tubular structure, and their two ends are fixedly connected to the bottom surface of the first inner ear plate 20 respectively, and a through hole is opened at the bottom of the first inner ear plate 20 . The first inner ear plates 20 at both ends of the two first support rods 18 are respectively hinged with the second outer ear plates 15 connected to the first support beam 11 and the first outer ear plates 6 at the top of the motion platform 5 . The first inner ear plates 20 at two ends are respectively hinged with the second outer ear plate 15 connected to the second support beam 12 and the first outer ear plate 6 at the raised part of the bottom of the motion platform 5 . In addition, two ends of the two first support rods 18 are installed at positions close to the first inner ear plate 20, which cooperate with the support vertical rod 2 of the folded support to form a moving pair. In order to better plan the rope movement channel, a fixed pulley can be added at a suitable position of the support rod.

As shown in Figure 1(a) and Figure 1(b), the platform, the top support frame, and the support rods together form a hexahedral rotatable truss structure. The truss structure formed by the first support bar 18 , the third support beam 13 , the second support bar 19 and the moving platform 5 is equivalent to a parallelogram mechanism. Therefore, during the folding process, the first support rod 18 and the second support rod 19, the third support beam 13 and the motion platform 5 are always kept parallel, and the angular displacement, angular velocity and angular acceleration of the two rods are always equal, and the rope dynamics System control is more convenient and stable. As shown in Figure 1c and 1d, at the same time, because the platform and the top support frame are all "convex" shaped structures with a large bottom and a small top, the distance between the two second support rods 19 is greater than the distance between the two first support rods 18. When the fitness device is folded and folded, the first support rod 18 and the second support rod 19 will not interfere with each other, and the folding knife can be on the same plane, saving space.

As shown in Figure 4, described motion support, by the first motion beam 22, the second motion beam 23, the 3rd motion beam 24, the first motion connector 25, the second motion connector 26, the 3rd outer ear plate 27, Sports pulley 28, single ear plate 29, second inner ear plate 30, module connector 31, rope connecting ring 32 and fitness module 33 etc. are formed. The first moving beam 22 , the second moving beam 23 and the third moving beam 24 are all hollow pipes, and together with the first moving link 25 and the second moving link 26 form a "convex" frame structure. Both ends of the first moving beam 22 are fixedly connected to the side of the first moving link 25, parallel to the first support beam 11, and the first moving link 25 at both ends cooperates with the first supporting rod 18 to form a moving pair. The side surface of the first movement connector 25 close to the bottom of the movement platform 5 is equipped with a third outer ear plate 27, and the inside of the third outer ear plate 27 is equipped with a movement pulley 28, and the axis direction of the movement pulley 28 is the same as the axis direction of the first movement beam 22. The two second kinematic connectors 26 form a moving pair with the second support bar 19 respectively, and the side near the bottom of the kinematic platform 5 is equipped with a single lug plate 29, and the axial direction of the single lug plate 29 is the same as the axial direction of the first moving beam 22. And the height of the axial center of the single ear plate 29 is the same as that of the third outer ear plate 27 . Both ends of the second moving beam 23 are hinged at the axial center of the single ear plate 29, parallel to the first moving beam 22. Two third moving beams 24 are perpendicular to the first moving beam 22, and one end is fixed to the first moving beam with a through hole at the bottom. The second inner ear plate 30 is hinged to the third outer ear plate 27 of the first movement connector 25 , and the other end is directly fixed to the second movement beam 23 . As shown in Fig. 1(c) and Fig. 1(d), such a structure can avoid interference between the second movement beam 23 and the first support rod 18 when the fitness device is folded, after being folded, due to the third outer ear plate 27 and the single The height of the ear plate 29, the third moving beam 24 is folded in parallel between the first support bar 18 and the third support beam 13, so that the second support bar 19 and the first support bar 18 can be folded to the same plane. A module connector 31 is installed in the middle of the third exercise beam 24, and is provided with different interfaces, which can be connected with different fitness modules 33 for exercise and fitness. A rope connection ring 32 is symmetrically installed on the third movement beam 24 at a certain distance from the module connector 31 for connecting the rope with the movement support to realize the function of fitness. The fitness module 33 can be a snatch bar 3301, a tensioner handle 3302 and the like. As shown in Figure 6 (a), the main body of the snatch rod 3301 is a round rod-shaped structure, and its central position is fixed with a shorter round rod structure to the two ends at half the average shoulder width of an adult human being. It can be fixed with the interface of the module connector 31 . Realize the functions of multiple snatch training and pull-up training. As shown in FIG. 6( d ), the bottom interface of the tensioner handle 3302 is connected to the rope interface of the module connector 31 to realize various tensioner training and dumbbell training functions.

As shown in Figure 5, the rope power system is composed of a controller 34 and several groups of rope driving mechanisms, each group of rope driving mechanisms is composed of a servo motor, a force sensor and a number of ropes, etc. motor function.

Wherein, the controller 34 is installed in the middle part of the support vertical bar 2, and its operation can control various functions of the fitness device.

The first rope driving mechanism 35 includes a first servo motor 3501, a first force sensor 3502 and two sets of first ropes 3503, which are used for folding and unfolding the fitness device. The first servo motor 3501 and the first force sensor 3502 are packaged in the middle of the base 1 of the retractable support, one end of the two sets of first ropes 3503 is wound on the winding reel of the first servo motor 3501, and the other end is bypassed by the first force The sensor 3502 moves along the wire groove of the base 1 to both sides of the base 1 and bypasses the pulley at the intersection with the wire groove of the support vertical bar 2, and then passes through the pulley at the top along the wire groove inside the support vertical bar 2, along the The sliding groove is connected with the support bar slider 21 on the top of the first support bar 18 . Thus, the rotation of the servo motor of the first rope driving mechanism 35 can drive the support bar slider 21 to move along the support vertical bar 2 .

The second rope driving mechanism 36 includes 2 sets of servo motors, force sensors and 8 sets of ropes, which are used to drive the movement of the moving bracket.

Wherein, a set of second servo motors 3601 and second force sensors 3602 are packaged at the central axis of the motion platform 5 . One end of the 4 groups of second ropes 3603 is wound on the winding reel of the second servo motor 3601, and the other end is bypassed by the second force sensor 3602, wherein two second ropes 3603 pass through the inside of the motion platform 5 and respectively bypass the motion platform 5. The first platform pulley block 7 at the hinge joint of two first support bars 18 passes through the inside of the first support bar 18, and then bypasses the first support frame pulley block 16 at the hinge joint of the first support bar 18 and the top support frame, respectively Be fixed on the top of the rope connecting ring 32 close to the first support bar 18 on the two third moving beams 24 . In addition, one end of two second ropes 3603 passes through the inside of the motion platform 5, walks around the second platform pulley block 8 at the hinge joints of the motion platform 5 and two second support rods 19 respectively, passes through the inside of the second support rod 19, and then winds The second support frame pulley block 17 hinged through the second support bar 19 and the top support frame is respectively affixed to the top of the rope connection ring 32 near the second support bar 19 of the two third moving beams 24 .

Another group of third servo motors 3604 and third force sensors 3605 are packaged at the central axis of the motion platform 5 . One end of four groups of third ropes 3606 is wound on the winding reel of the third servo motor 3604, and the other end is bypassed by the third force sensor 3605, wherein two third ropes 3606 pass through the inside of the motion platform 5 and respectively bypass the motion platform 5 and the first platform pulley block 7 at the hinge joint of the two first support rods 18 are fixedly connected to the bottom of the rope connection ring 32 of the two third moving beams 24 close to the first support rods 18. In addition, one end of two third ropes 3606 passes through the inside of the motion platform 5, respectively bypasses the second platform pulley block 8 at the hinge joint of the motion platform 5 and the two second support rods 19, and is fixed on the two third motion beams 24. Close to the bottom of the rope connection ring 32 of the second support rod 19 .

The third rope driving mechanism 37 includes 2 sets of servo motors and force sensors and 2 sets of ropes, which are used to drive the fitness modules 33 of fitness equipment such as tensioners. Two groups of servo motors and force sensors are symmetrically packaged in two positions at a certain distance from the central axis of the motion platform 5 . One end of a group of fourth ropes 3703 is wound on the reel of the fourth servo motor 3701, bypasses the fourth force sensor 3702, passes through the inside of the motion platform 5, and bypasses a joint between the motion platform 5 and the first support rod 18 The first platform pulley block 7 passes through the inside of the first support bar 18, walks around the first support frame pulley block 16 hinged by the first support bar 18 and the top support frame, and then walks around the moving pulley 28 and passes through the connected third The inside of the moving beam 24 is finally movably connected to the module connector 31 . Another set of fifth servo motor 3704, fifth force sensor 3705 and fifth rope 3706 are arranged symmetrically therewith.

The following describes how the cord-driven collapsible multifunctional fitness device is folded:

As shown in FIG. 1 and FIG. 5 , press the folding key of the fitness device, and the second servo motor 3601 of the second rope driving mechanism 36 rotates in the reverse direction to recover the second rope 3603 . At the same time, the third servo motor 3604 rotates forward, and the third rope 3606 is released. The traction motion bracket moves to the top of the support rod. Simultaneously, the fourth servomotor 3701 and the fifth servomotor 3704 of the third rope driving mechanism 37 reversely rotate, reclaim the fourth rope 3703 and the fifth rope 3706, make the interface of the fourth rope 3703 and the fifth rope 3706 and the interface of the moving support The relative position of the module connectors 31 remains unchanged. Then, the first servo motor 3501 of the first rope driving mechanism 35 rotates in reverse, recovers the first rope 3503 , and drives the supporting rod slider 21 connected thereto to move upward along the support vertical rod 2 . The first support rod 18 fixedly connected with the support rod slider 21 moves upwards, driving the top of the motion platform 5 hinged therewith to move upwards, and the bottom of the motion platform 5 is heavy, and the roller 9 at the bottom contacts with the ground to form a moving pair. The top supporting frame also moves with the movement of the whole frame, and the supporting frame is folded up like a parallelogram mechanism as a whole. Finally, the top support frame and the motion platform 5 are perpendicular to the ground, and the second support rod 19 and the first support rod 18 are folded and folded to the same plane vertical to the ground, and the motion bracket positioned at the top of the support rod is also perpendicular to the ground, located on the folded back Between support beams and support rods. The unfolding process of the device is opposite to the retracting process, and the first servo motor 3501 of the first rope drive mechanism 35 works in the opposite direction. But the second rope driving mechanism 36 and the third rope driving mechanism 37 do not work, that is, the moving bracket is always at the top position of the support rod.

The following describes how the rope-driven foldable multifunctional fitness device realizes the fitness exercise function:

As shown in Fig. 1 and Fig. 5, after the fitness device is unfolded, the type of fitness training is selected on the controller 34, and the resistance is determined. The second servo motor 3601 of the second rope driving mechanism 36 rotates forwardly, releasing the second rope 3603 . At the same time, the third servo motor 3604 rotates in reverse, and the third rope 3606 is recovered. The traction movement bracket moves to the corresponding position of the support rod. The fourth servomotor 3701 and the fifth servomotor 3704 of the third rope driving mechanism 37 rotate forwardly, release the fourth rope 3703 and the fifth rope 3706, and make the interface of the fourth rope 3703 and the fifth rope 3706 and the module connector 31 The relative position remains unchanged.

If the snatch training function of the fitness device is selected, a snatch bar 3301 needs to be installed on the module connector 31 of the exercise bracket, as shown in Fig. 1(a), Fig. 1(b) and Fig. 6(a). Stand on the corresponding position on the exercise platform 5, and hold the snatch bar 3301 to start fitness exercise. The movement bracket is moved by the force of the body, and the rope connected to it is deformed, and the force generated by the deformation acts on the force sensor wound around it. If the force value reaches the set resistance value, the corresponding servo motor rotates to make the movement The brace moves with the movement of the limb. When the force detected by the force sensor does not reach the set value, the servo motor stops working, which greatly improves the flexibility and safety of the training process. In addition, by holding different positions of the snatch bar 3301 in different ways and performing snatch training, muscles at different positions on the body can be exercised. If a fitness chair is added on the exercise platform 5, the muscles of more positions on the body can be trained for sitting or lying position snatch.

If the pull-up training function of the fitness device is selected, it is also necessary to install a snatch bar 3301 on the module connector 31 of the exercise bracket. Then, the exercise bracket rises to the top position of the support bar, and the pull-up training can be performed by holding the snatch bar 3301 at different positions, so as to exercise the muscles in multiple places of the body.

If you choose the tensioner function of the fitness device, you need to connect the interfaces at the bottom of the two tensioner handles 3302 to the interfaces of the sports connectors on both sides of the exercise bracket, see Figure 5 and Figure 6(b). Standing at the corresponding position of the motion platform 5, pulling the handle with both hands, the fourth rope 3703 and the fifth rope 3706 connected thereto are deformed, and the force generated by the deformation acts on the fourth force sensor 3702 and the force sensor 3705 wrapped around it. After the value reaches the set resistance value, the corresponding fourth servo motor 3701 and fifth servo motor 3704 rotate forward, and the arms can drive the tensioner to move. When the force detected by the fourth force sensor 3702 and the force sensor 3705 does not reach the set value, the fourth servo motor 3701 and the fifth servo motor 3704 rotate in reverse, and the tensioner handle 3302 is retracted. If different tension training functions are selected, the sports bracket can be fixed at different positions of the support bar to exercise muscles in different parts of the body.

If you choose the dumbbell function of the fitness device, you only need to connect a tensioner handle 3302 on the module connector 31, and then, the exercise bracket moves to the corresponding position of the support bar to perform training.

It is also possible to add a variety of fitness modules 33 on the fitness device, such as a fitness chair, for sit-up training. Treadmill, cardio and more.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. A foldable multifunctional fitness device driven by a rope, characterized in that, the foldable multifunctional fitness device driven by the rope comprises: The folding support fixed to the outside for the main body of the fitness device is a support structure for the movement bracket, and is slidably linked with the folding support, and is a truss-type support bracket that can be folded and folded through its own hinge structure; Slidingly connected to the supporting bracket, by changing the connected fitness module, a sports bracket that realizes various fitness functions; The rope power system is connected with the retracting support, the support bracket and the exercise bracket in a specific way, so as to realize the retracting function and the fitness function of the fitness device. 2. The rope-driven foldable multifunctional fitness device according to claim 1, wherein the foldable support comprises: a base, two support vertical bars, several support horizontal bars, and a load-bearing block; The base is a flat structure such as "concave" or "H". The position of the vertical bar of the support is fixed with a load-bearing block, which is used to stably fold the support; The middle position of the base is connected with a first rope drive mechanism, which is used as a power source for folding and folding of the fitness device; the chute of the vertical rod of the support is matched with the slider of the support rod of the support bracket; A fixed structure is installed at the position where the vertical bar of the support is in contact with the external wall and ceiling, which is used to increase the stability of the fitness device; Several support cross bars are fixedly connected between two support vertical bars to increase the stiffness of the folded support; There are rope grooves inside the base and the vertical bar of the support, and the ports of the two rope grooves are connected. There are fixed pulleys or rope rings at the junction of the vertical bar of the support and the rope groove of the base, and the top of the vertical bar of the support. 3. The rope-driven foldable multifunctional fitness device according to claim 1, wherein the support frame comprises a set of platforms, a set of support rods, and a set of top support frames; The movement platform of the platform is a flat hollow hexahedron structure, with protrusions at both ends of the bottom, forming a "convex" shaped structure with a large bottom and a small top, and the second rope drive mechanism and the third rope drive mechanism are installed inside; Four first outer ear plates are installed, and a through hole is opened at the connection part between the bottom and the motion platform; The two first outer ear plates are installed at both ends of the top of the motion platform, and the axis direction is parallel to the ground; the first outer ear plate is equipped with the first platform pulley block; the other two first outer ear plates are installed on the top of the protruding part of the bottom of the motion platform, The axis direction is parallel to the ground; the second platform pulley block installed inside the first outer ear plate includes 2 independent fixed pulleys; A plurality of rollers for supporting and folding are installed near the bottom of the exercise platform, and a boss capable of supporting the fitness device together with the rollers is installed on the bottom of the exercise platform. 4. The rope-driven foldable multifunctional fitness device according to claim 3, wherein the top support frame is of the same "convex" shape as the exercise platform, and is fixedly connected by a corresponding length of pipe material and a support platform constitute; The height of each support platform is greater than twice the diameter of the pipe, and the bottom surface of each support platform is fixedly connected with the second outer ear plate 2; both ends of the first support beam are fixedly connected with the sides of the support platform, and the bottom surfaces of the two support platforms are fixed with the second outer ear plate Two outer ear plates, the axial direction of which is parallel to the axial direction of the first support beam; the distance between the two second outer ear plates connected at both ends of the first support beam is the same as the distance between the two first outer ear plates installed on the top of the motion platform; The inside of the second outer ear plate is equipped with the first support frame pulley block 1 composed of two independent pulleys; the two ends of the second support beam are fixedly connected to the side of the support platform, and the second outer ear plate is fixedly connected to the bottom surface of the two support platforms. Its axis direction is parallel to the axis direction of the second support beam; The distance between the two second ear plates connected at both ends of the second support beam is the same as the distance between the two first ear plates installed at the bottom of the motion platform; the second ear plate is installed inside the second ear plate composed of an independent pulley. The pulley block of the support frame; two third support beams are perpendicular to the first support beam, and one end is fixed on the two sides of the second outer ear plate to which the first support beam is fixed, and the other end is symmetrically fixed to the second support beam, so that the support frame The quadrilateral formed by the four second outer ear plates is exactly the same as the quadrilateral formed by the four first outer ear plates on the moving platform. 5. The foldable multifunctional body-building device driven by the rope according to claim 3, wherein the support rod comprises a first support rod, a second support rod, inner ear plate one, and a support rod slider; Both the first support rod and the second support rod have the same hollow tubular structure, and their two ends are fixedly connected to the bottom surface of the first inner ear plate respectively, and a through hole is opened at the bottom of the first inner ear plate; The first inner ear plate is hinged with the second outer ear plate connected to the first support beam and the first outer ear plate at the top of the motion platform; the first inner ear plates at both ends of the two second support rods are respectively connected with the second outer ear plate of the second support beam The plate and the first outer ear plate at the raised part of the bottom of the motion platform are hinged; and a support rod slider is installed at the position close to the first inner ear plate at both ends of the two first support rods, which cooperate with the support vertical rod of the folded support , forming a mobile pair. 6. The rope-driven foldable multifunctional fitness device according to claim 3, characterized in that, the motion platform, the top support frame, and the support rod together constitute a hexahedral rotatable truss structure; The truss structure formed by the first support rod, the third support beam, the second support rod and the motion platform is equivalent to a parallelogram mechanism; The motion support includes: a first motion beam, a second motion beam, a third motion beam, a first motion connector, a second motion connector, a third outer ear plate, a motion pulley, a single ear plate, a second inner ear plate, Module connectors, rope attachment loops and fitness modules; The first moving beam, the second moving beam and the third moving beam are all hollow pipes, which form a "convex" frame structure together with the first moving connecting piece and the second moving connecting piece; both ends of the first moving beam are fixed on the The side of the first kinematic connector is parallel to the first support beam, and the first kinematic connector at both ends cooperates with the first support rod to form a moving pair; the side of the first kinematic connector close to the bottom of the motion platform is equipped with the third outer ear plate , the movement pulley is installed inside the third outer ear plate, and the axis direction of the movement pulley is the same as the axis direction of the first movement beam; the two second movement connectors respectively form a movement pair with the second support rod, and the side near the bottom of the movement platform is equipped with Single lug, the axial direction of the single lug is the same as that of the first moving beam, and the height of the axis of the single lug is the same as that of the third outer lug three; The two ends of the second moving beam are hinged at the axial center of the single ear plate, parallel to the first moving beam; two third moving beams are perpendicular to the first moving beam, and the second inner ear plate with a through hole at the bottom fixed at one end is connected to the second inner ear plate with a through hole. The third outer ear plate of the first movement link is hinged, and the other end is directly fixed to the second movement beam; A module connector is installed in the middle of the third movement beam, with different interfaces, which can be connected to different fitness modules for exercise and fitness; a rope connection is symmetrically installed on the third movement beam at a certain position from the module connection The ring is used for connecting the rope with the sports bracket to realize the function of fitness. 7. The retractable multi-functional fitness device driven by a rope according to claim 1, wherein the rope power system comprises a controller, several groups of rope driving mechanisms, and each group of rope driving mechanisms is composed of servo motors, force sensors and Composed of several ropes, it realizes the function of folding and unfolding the fitness device and the function of fitness exercise; The controller is installed in the middle of the vertical rod of the support, and controls various functions of the fitness device for operation; The first rope driving mechanism includes a first servo motor, a first force sensor and 2 sets of first ropes, which are used for folding and unfolding the fitness device; the first servo motor and the first force sensor are packaged in the middle of the base of the folding support, 2 One end of the set of ropes is wound on the winding reel of the first servo motor, and the other end is bypassed by the first force sensor, respectively along the wire groove of the base to the two sides of the base and bypassing the pulley at the junction of the wire groove of the support vertical rod, and then Go through the pulley on the top of the support vertical bar along the line slot inside, and connect with the support bar slider on the top of the first support bar along the chute; the servo motor of the first rope drive mechanism rotates to drive the support bar slider along the Support vertical rod movement; The second rope drive mechanism includes 2 sets of servo motors, force sensors and 8 sets of ropes, which are used to drive the movement of the moving bracket; Among them, one set of second servo motors and second force sensors are packaged at the central axis position of the motion platform; one end of four sets of second ropes is wound on the winding reel of the second servo motors, and the other end is bypassed by the second force sensors, wherein The two ropes pass through the interior of the motion platform, respectively bypass the first platform pulley block at the joint between the motion platform and the two first support rods, pass through the interior of the first support rod, and then bypass the hinge between the first support rod and the top support frame The pulley block of the first support frame is respectively fixed on the top of the rope connecting ring of the two third moving beams close to the first supporting rod; one end of the other two ropes passes through the inside of the moving platform, respectively bypassing the moving platform and the two third moving beams. The second platform pulley group at the hinge of the two support rods passes through the inside of the second support rod, and then bypasses the second support rod and the second support frame pulley group hinged on the top support frame, and is respectively fixed on the two third moving beams. Rope connection ring top of the second support rod; Another group of the third servo motor and the third force sensor are packaged at the center axis of the motion platform; one end of the four sets of ropes is wound on the winding reel of the third servo motor, and the other end is bypassed by the third force sensor, two of which are The rope passes through the interior of the motion platform, respectively bypasses the first platform pulley block at the hinge joint between the motion platform and the two first support rods, and is fixed on the bottom of the rope connection ring near the first support rod on the two third motion beams; the other two One end of the root rope passes through the interior of the motion platform, respectively bypasses the second platform pulley block 2 at the hinge joint between the motion platform and the two second support rods, and is fixed on the rope connection rings of the two third motion beams close to the second support rods bottom; The third rope drive mechanism includes 2 sets of servo motors and force sensors, and 2 sets of ropes, which are used to drive the fitness module of the fitness device; the 2 sets of servo motors and force sensors are symmetrically packaged in two positions at a certain distance from the central axis of the motion platform; A group of fourth rope four ends are wound on the winding reel of the fourth servo motor, bypass the fourth force sensor, pass through the interior of the motion platform, and bypass the first platform pulley block at the hinge joint between a motion platform and the first support rod , passing through the inside of the first support rod, bypassing the first pulley set hinged by the first support rod and the top support frame, then bypassing the motion pulley, passing through the inside of the connected third motion beam, and finally movably connected to the module connector On; another group of the fifth servo motor, the fifth force sensor and the fifth rope are installed symmetrically therewith. 8. A dumbbell fitness device, characterized in that, the dumbbell fitness device is connected to a tensioner handle on the modular connector of the foldable multifunctional fitness device driven by a rope according to any one of claims 1 to 7, and a movement bracket Ⅲ moves to the corresponding position of the support rod. 9. A fitness chair, characterized in that the fitness chair is connected to the fitness module of the cord-driven foldable multifunctional fitness device according to any one of claims 1-7. 10. A weight lifter, characterized in that the weight lifter is connected to the fitness module of the cord-driven foldable multifunctional fitness device according to any one of claims 1-7.