Multi-motor tension fitness structure

Abstract

The utility model relates to the technical field of exercise and fitness, in particular to a multi-motor tension fitness structure which comprises a fixing frame, two tension fitness units and a transition unit, the transition unit is of a speed reducer structure or a clutch structure, and the input end and the output end of the speed reducer structure are connected with the two tension fitness units respectively. The clutch structure realizes combination or separation of the two tension fitness units; each tension fitness unit comprises a stator unit, a rotor unit used in cooperation with the stator unit, a wire wheel connected with the rotor unit and a tension rope wound around the outer side of the wire wheel. By means of the arrangement of the transition unit, when a user pulls the pull rope, the driving resistance can be equal to the driving resistance of one motor structure, and the driving resistance between the driving resistance of one motor structure and the driving resistance of the two motor structures is equal to the sum of the driving resistance of the two motor structures and larger than the sum of the driving resistance of the two motor structures. Diversified fitness of driving resistance is achieved, and the experience degree of consumers is met.

Description

Technical Field

[0001] The utility model relates to the technical field of sports fitness, and in particular discloses a multi-motor pulling fitness structure. Background Art

[0002] In today's society, people pay more and more attention to physical exercise to maintain health and improve physical fitness. As a low-cost fitness tool that can effectively improve muscle strength and physical fitness, rope fitness equipment is increasingly favored by fitness enthusiasts.

[0003] The currently used rope-pulling fitness equipment only has a fixed pulling resistance, which cannot take into account the actual resistance requirements of different members of the same family. The pulling resistance during exercise is single, and the user experience is not high. Utility Model Content

[0004] In order to overcome the shortcomings and deficiencies in the existing technology, the purpose of the present invention is to provide a multi-motor pulling fitness structure, which, with the help of the setting of the transition unit, can achieve diversified fitness with driving resistance, meet the diverse needs of different consumers for different pulling resistances, and enhance the consumer experience.

[0005] To achieve the above-mentioned purpose, the utility model provides a multi-motor tension fitness structure, including a fixed frame for being installed on an external carrier; also including a first tension fitness unit, a second tension fitness unit and a transition unit located between the two tension fitness units, which are arranged on the fixed frame. The transition unit is a reducer structure or a clutch structure, and the input end and the output end of the reducer structure are respectively connected to the two tension fitness units, and the clutch structure is used to realize the joint operation or separate independent operation of the two tension fitness units; the first tension fitness unit and the second tension fitness unit both include a stator unit arranged on the fixed frame, a rotor unit rotatably arranged on the fixed frame for use with the stator unit, a reel connected to the rotor unit, and a tension rope wound around the outside of the reel for the user to pull; the stator unit and the rotor unit are combined to form a motor structure, and the rotor unit drives the reel to rotate in a direction for winding the tension rope. The user pulls the tension rope to overcome the driving resistance of the motor structure and make the cable rotate in the forward direction.

[0006] Furthermore, the clutch structure includes a spline sleeve and two spline shafts respectively arranged on the pulleys of the two tension fitness units. The two spline shafts are located between the pulleys of the two tension fitness units, and the spline sleeve is sleeved on the outside of the spline shafts; the two ends of the spline sleeve are respectively sleeved on the outside of one end of the two spline shafts close to each other to engage with each other so that the two tension fitness units operate jointly; the spline sleeve is only sleeved on the outside of one spline shaft so that the two tension fitness units are separated and operated independently.

[0007] Furthermore, the fixed frame is provided with a horizontally arranged support shaft, the stator unit is fixedly arranged on the support shaft, and the rotor unit is rotatably sleeved on the outside of the support shaft; the spline shaft is fixed on the end of the pulley away from the rotor unit, the pulley is located between the rotor unit and the spline shaft, and the spline shaft is rotatably sleeved on the outside of the support shaft.

[0008] Furthermore, the fixing frame also includes a support seat, and two tension fitness units protrude through both ends of the support shaft and are installed and fixed on the support seat. The support seat is provided with a suction cup assembly for adsorbing and fixing on the bearing surface.

[0009] Furthermore, the clutch structure also includes a fastening limiter, and the spline sleeve is provided with a guide hole penetrating the side wall of the spline sleeve, the guide hole is used to accommodate the fastening limiter, the fastening limiter protrudes out of the inner wall of the spline sleeve and is used to abut against the spline shaft body.

[0010] Furthermore, the reducer structure is a planetary reducer, a pulley reducer, a harmonic reducer, a flexible wheel reducer or a link reducer.

[0011] Furthermore, the fixing frame has a fixed shaft, a positioning rod detachably connected to the fixed shaft, and a locking piece arranged on the positioning rod, and the locking piece is used to limit the positioning rod on an external bearing member; the stator units of the two tension fitness units are fixedly arranged on the fixed shaft.

[0012] Furthermore, there are two positioning rods and two locking pieces. The two positioning rods are respectively connected to two ends of the fixed shaft that are away from each other, and the two locking pieces are respectively arranged on one end of the positioning rod that is away from the fixed shaft.

[0013] Furthermore, threaded columns are provided at both ends of the fixed shaft, and the positioning rod is provided with internal screw holes that are threadedly engaged with the threaded columns. The outer sides of the threaded columns at both ends of the fixed shaft are threadedly sleeved with threaded sleeves, and the threaded sleeves are used to resist the end face of the positioning rod to prevent the threaded column and the positioning rod from loosening.

[0014] Furthermore, the locking piece has an assembly block connected to one end of the positioning rod away from the fixed axis, and an extrusion block movably matched with the assembly block, the assembly block has a first inclined surface, the extrusion block has a second inclined surface that fits with the first inclined surface, the angle between the second inclined surface and the horizontal plane is an acute angle, and the sum of the angle between the first inclined surface and the horizontal plane and the angle between the second inclined surface and the horizontal plane is 180°; the extrusion block is provided with a positioning column, and the assembly block has a guide sliding hole for accommodating the positioning column; the extrusion block is used to contact the external door frame.

[0015] The beneficial effects of the present invention: With the help of the transition unit setting, during the user's actual fitness process, when the user pulls the tension rope, the driving resistance can be equal to the driving resistance of one motor structure, between the driving resistance of one motor structure and the driving resistance of two motor structures, equal to the sum of the driving resistances of the two motor structures, or greater than the sum of the driving resistances of the two motor structures, thereby realizing diversified fitness with driving resistance and satisfying the consumer experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of the first embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the second embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the exploded structure of the second embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the exploded structure of the locking element of the present invention;

[0021] Figure 6 This is a schematic diagram of the exploded structure of the locking element of the present invention from another perspective.

[0022] Reference numerals include:

[0023] 1. Fixed frame; 2. First tension fitness unit; 3. Second tension fitness unit; 4. Transition unit; 5. Rotor unit; 6. Reel; 7. Tension rope; 8. Spline sleeve; 9. Spline shaft; 10. Support shaft; 11. Support seat; 12. Suction cup assembly; 13. Fixed shaft; 14. Positioning rod; 15. Locking piece; 16. Assembly block; 17. Extrusion block; 18. First inclined surface; 19. Second inclined surface; 20. Positioning column; 21. Guide slide hole. DETAILED DESCRIPTION

[0024] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0025] Example 1

[0026] See also Figures 1 to 2As shown, a multi-motor tension fitness structure of the present invention includes a fixing frame 1 for being installed on an external bearing member. During actual installation, the fixing frame 1 can be adsorbed and installed on the ground. The multi-motor tension fitness structure fixing frame 1 can also be fixedly installed on an external frame. Of course, the fixing frame 1 can also be installed on both sides of the door frame.

[0027] The multi-motor tension fitness structure also includes a first tension fitness unit 2, a second tension fitness unit 3, and a transition unit 4 located between the two tension fitness units, mounted on a fixed frame 1. The transition unit 4 is a speed reducer or clutch structure. The input and output ends of the speed reducer structure are respectively connected to the two tension fitness units, and the clutch structure is used to enable the two tension fitness units to operate in conjunction or separately.

[0028] The structure of the first tension fitness unit 2 is the same as that of the second tension fitness unit 3. Both the first tension fitness unit 2 and the second tension fitness unit 3 include a stator unit arranged on a fixed frame 1, a rotor unit 5 rotatably arranged on the fixed frame 1 and used in conjunction with the stator unit, a pulley 6 connected to the rotor unit 5, and a tension rope 7 wound around the outside of the pulley 6 for the user to pull.

[0029] The stator unit and the rotor unit 5 form a motor structure. The rotor unit 5 drives the reel 6 to rotate in a certain direction for winding the tension rope 7. The user pulls the tension rope 7 to overcome the driving resistance of the motor structure and make the reel 6 rotate in the positive direction.

[0030] The present invention utilizes a transition unit 4. During a user's actual exercise, when the clutch structure separates and independently operates the two tension fitness units, the driving resistance when the user pulls the resistance rope 7 equals the driving resistance of one motor structure. When the clutch structure enables the two tension fitness units to operate together, the driving resistance when the user pulls the resistance rope 7 equals the sum of the driving resistances of the two motor structures. When the reducer structure connects the two tension fitness units, the pulley 6 of the first tension fitness unit is decelerated by the reducer structure before being connected to the pulley 6 of the second tension fitness unit. When the user pulls the resistance rope 7 of the first tension fitness unit, the driving resistance when the user pulls the resistance rope 7 is greater than the sum of the driving resistances of the two motor structures. When the user pulls the resistance rope 7 of the second tension fitness unit, the driving resistance when the user pulls the resistance rope 7 is between the driving resistance of one motor structure and the driving resistance of two motor structures. The provision of the transition unit 4 enables diversified driving resistance for exercise, meeting the diverse pulling resistance requirements of different consumers and enhancing the consumer experience.

[0031] The clutch structure includes a spline sleeve 8 and two spline shafts 9 respectively arranged on the pulleys 6 of the two tension fitness units. The spline sleeve 8 is roughly hollow cylindrical, and the inner side of the spline sleeve 8 has a spline groove. The two spline shafts 9 are located between the pulleys 6 of the two tension fitness units. The outer side of the spline shaft 9 is provided with a spline rib, which is used to extend into the spline groove. The spline sleeve 8 is used to be sleeved on the outer side of the spline shaft 9.

[0032] In actual use, when the left and right ends of the spline sleeve 8 are respectively mounted on the outer sides of the adjacent ends of the two spline shafts 9, the clutch structure allows the two tension fitness units to operate in conjunction and synchronization. When the spline sleeve 8 is mounted on the outer side of only one spline shaft 9, the two tension fitness units can be separated and operated independently without interfering with each other. In this case, the two tension fitness units can be pulled by two users for exercise.

[0033] Of course, in the actual manufacturing process of the multi-motor tension fitness structure, the driving resistance of the motor structure of the two tension fitness units may also be different. For example, the driving resistance of the first tension fitness unit is 40 Newtons, and the driving resistance of the second tension fitness unit is 60 Newtons. In this way, with the help of the transition unit 4, a more diverse demand for multiple changes in driving resistance can be achieved.

[0034] The fixed frame 1 has a horizontally arranged support shaft 10, which is roughly a straight cylinder. The stator unit is fixedly installed on the support shaft 10, and the stator unit is sleeved on the outside of the support shaft 10. The rotor unit 5 is rotatably sleeved on the outside of the support shaft 10. For example, the two ends of the rotor unit 5 are respectively sleeved on the outside of the support shaft 10 via rolling shaft sleeves.

[0035] During actual manufacturing, the spline shaft 9 is fixed on the end of the pulley 6 away from the rotor unit 5, the pulley 6 is located between the rotor unit 5 and the spline shaft 9, and the spline shaft 9 is rotatably sleeved on the outside of the support shaft 10. Preferably, the spline shaft 9 is installed on the outside of the support shaft 10 via a rolling bearing.

[0036] The fixing frame 1 also includes a support base 11, which is roughly U-shaped. Two tension fitness units protrude from both ends of the support shaft 10 and are mounted and fixed on the support base 11. The support base 11 is provided with a suction cup assembly 12 for adsorbing and fixing to the bearing surface. In actual use, the suction cup assembly 12 is adsorbed and fixed to the floor surface. In this way, the entire multi-motor tension fitness structure can be quickly installed. After that, the user can sit on the floor surface and pull the tension rope 7 for fitness, which improves the convenience of installation and fixation. According to actual needs, there can be multiple suction cup assemblies 12. For example, there can be two suction cup assemblies 12 to increase the connection force between the fixing frame 1 and the floor surface, preventing the fixing frame 1 from separating from the floor surface and being unable to be used normally.

[0037] The clutch structure also includes a fastening limiter. The spline sleeve 8 is provided with a guide hole that passes through the side wall of the spline sleeve 8. The guide hole is used to accommodate the fastening limiter. The fastening limiter protrudes from the inner wall of the spline sleeve 8 and is used to abut against the spline shaft body 9. During the use of the clutch structure, after the spline sleeve 8 moves to the desired position, for example, after the two ends of the spline sleeve 8 are engaged with the two ends of the spline shaft bodies 9 that are close to each other, or after the spline sleeve 8 is engaged with only one spline shaft body 9, the fastening limiter is tightened, and the spline sleeve 8 is firmly limited to the outer side of the spline shaft body 9 by means of the fastening limiter to prevent the spline sleeve 8 from moving along the central axis direction of the spline shaft body 9 and causing malfunction.

[0038] When the transition unit 4 is a reducer structure, the reducer structure is a planetary reducer, a pulley reducer, a harmonic reducer, a flexible wheel reducer, or a chain reducer. Of course, in actual use, the reducer structure can also be a multi-stage reducer. For example, the fixed frame 1 has an auxiliary shaft parallel to the support shaft 10, and the auxiliary shaft is rotatably arranged on the fixed seat. The first and second pulleys are respectively installed at both ends of the auxiliary shaft. The cable of the first tensile fitness unit is installed with a third pulley, and the third pulley is connected to the first pulley via the first ring belt. The radius of the third pulley is smaller than the radius of the first pulley. The third pulley and the first pulley constitute a first reducer. The cable of the second tensile fitness unit is installed with a fourth pulley, and the fourth pulley is connected to the second pulley via the East Second Ring Belt. The radius of the second pulley is smaller than the radius of the fourth pulley. The second pulley and the fourth pulley constitute a second reducer.

[0039] Example 2

[0040] See also Figures 3 to 6 As shown, the fixing frame 1 is roughly in the shape of a long strip, and the fixing frame 1 has a fixed shaft 13, a positioning rod 14 detachably connected to the fixed shaft 13, and a locking piece 15 arranged on the positioning rod 14. The fixed shaft 13 is roughly a straight cylinder, and the locking piece 15 is used to limit the positioning rod 14 on the external bearing member, thereby completing the installation and fixation of the entire multi-motor tension fitness structure and the bearing member; the stator units of the two tension fitness units are fixedly set on the fixed shaft 13, and the stator units are sleeved and fixed on the outer side of the fixed shaft 13.

[0041] In this embodiment, there are two positioning rods 14, with the two tension fitness units located between them. There are two locking members 15, each connected to the ends of the fixed shaft 13 that are spaced apart from each other. Two locking members 15 are also provided on the ends of the positioning rods 14 that are spaced apart from each other. During installation, the two locking members 15 are used to secure the two distal ends of the positioning rods 14 to external support members, ensuring a secure installation of the multi-motor tension fitness structure and preventing uneven force on both ends of the structure, which could cause movement and poor operation.

[0042] Threaded columns are provided at both ends of the fixed shaft 13, and the positioning rod 14 is provided with an internal screw hole that is threadedly engaged with the threaded columns. The outer sides of the threaded columns at both ends of the fixed shaft 13 are threadedly sleeved with threaded sleeves, which are used to resist the end face of the positioning rod 14 to prevent the threaded column and the positioning rod 14 from loosening.

[0043] During the actual use of the multi-motor tension fitness structure, the user can place the multi-motor tension fitness structure into the door frame according to actual needs, and then respectively press the locking pieces 15 of the two positioning rods 14 against the two sides of the door frame, and then rotate the positioning rod 14. With the help of the threaded connection between the threaded column and the positioning rod 14, the rotating positioning rod 14 drives the locking piece 15 to rotate together and move along the central axis direction of the fixed shaft 13 until the locking piece 15 is firmly pressed against the door frame, and then rotate the threaded sleeve so that the threaded sleeve presses against the end face of the positioning rod 14 away from the locking piece 15, thereby ensuring that the multi-motor tension fitness structure is firmly positioned between the door frames.

[0044] The locking member 15 includes an assembly block 16 connected to the end of the positioning rod 14 away from the fixed axis 13, and an extrusion block 17 that flexibly engages with the assembly block 16. The assembly block 16 has a first inclined surface 18, and the extrusion block 17 has a second inclined surface 19 that mates with the first inclined surface 18. The angle between the second inclined surface 19 and the horizontal plane is acute, and the sum of the angles between the first inclined surface 18 and the horizontal plane and the second inclined surface 19 and the horizontal plane is 180°. The extrusion block 17 is provided with a positioning post 20 and a guide slide hole 21 for accommodating the positioning post 20. The extrusion block 17 is configured to contact the external door frame. During actual assembly, the assembly block 16 is rotatably mounted with the positioning rod 14, and the rotation axis of the assembly block 16 and the positioning rod 14 coincides with the central axis of the positioning rod 14. This ensures that the angle between the first inclined surface 18 of the extrusion block 17 and the horizontal plane remains acute when the multi-motor tension fitness structure is installed between the door frames.

[0045] When the multi-motor tension fitness structure is installed and positioned between the two sides of the door frame, the user pulls the tension rope 7 downward to perform fitness. When the assembly block 16 slides downward relative to the extrusion block 17, the extrusion block 17 is subjected to a stronger pushing force and pressed against the door frame by means of the structural cooperation between the assembly block 16 and the first inclined surface 18 and the second inclined surface 19 of the extrusion block 17, thereby ensuring that the multi-motor tension fitness structure is more firmly positioned between the door frames and will not fall.

[0046] The rest of this embodiment is the same as that of the first embodiment. The features not explained in this embodiment are all based on the explanations of the first embodiment and will not be described in detail here.

[0047] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A multi-motor tension fitness structure, comprising a fixing frame (1) for mounting on an external bearing member; characterized in that: The invention also includes a first tension fitness unit (2) and a second tension fitness unit (3) arranged on a fixed frame (1), and a transition unit (4) located between the two tension fitness units. The transition unit (4) is a reducer structure or a clutch structure. The input end and the output end of the reducer structure are respectively connected to the two tension fitness units. The clutch structure is used to realize the joint operation or the separated independent operation of the two tension fitness units. The first tension fitness unit (2) and the second tension fitness unit (3) both include a stator unit arranged on the fixed frame (1), a rotor unit (5) rotatably arranged on the fixed frame (1) and used in conjunction with the stator unit, a reel (6) connected to the rotor unit (5), and a tension rope (7) wound around the outer side of the reel (6) for the user to pull. The stator unit and the rotor unit (5) are combined to form a motor structure. The rotor unit (5) drives the reel (6) to rotate in a direction for winding the tension rope (7). The user pulls the tension rope (7) to overcome the driving resistance of the motor structure so that the cable rotates in the positive direction.

2. The multi-motor tension fitness structure according to claim 1, characterized in that: The clutch structure comprises a spline shaft sleeve (8), two spline shaft bodies (9) respectively arranged on the wire wheels (6) of the two tension fitness units, the two spline shaft bodies (9) are located between the wire wheels (6) of the two tension fitness units, and the spline shaft sleeve (8) is sleeved on the outside of the spline shaft bodies (9); the two ends of the spline shaft sleeve (8) are respectively sleeved on the outside of one end of the two spline shaft bodies (9) that are close to each other, so that the two tension fitness units operate in combination; the spline shaft sleeve (8) is sleeved on the outside of only one spline shaft body (9), so that the two tension fitness units operate separately and independently.

3. The multi-motor tension fitness structure according to claim 2, characterized in that: The fixed frame (1) is provided with a horizontally arranged support shaft (10), the stator unit is fixedly arranged on the support shaft (10), and the rotor unit (5) is rotatably sleeved on the outside of the support shaft (10); the spline shaft (9) is fixed on an end of the spool (6) away from the rotor unit (5), the spool (6) is located between the rotor unit (5) and the spline shaft (9), and the spline shaft (9) is rotatably sleeved on the outside of the support shaft (10).

4. The multi-motor tension fitness structure according to claim 3, characterized in that: The fixing frame (1) also includes a support base (11), two tension fitness units protruding from both ends of the support shaft (10) respectively pass through and are fixed on the support base (11), and the support base (11) is provided with a suction cup assembly (12) for adsorbing and fixing on the bearing surface.

5. The multi-motor tension fitness structure according to claim 2, characterized in that: The clutch structure also includes a fastening limiter. The spline shaft sleeve (8) is provided with a guide hole penetrating the side wall of the spline shaft sleeve (8). The guide hole is used to accommodate the fastening limiter. The fastening limiter protrudes out of the inner wall of the spline shaft sleeve (8) and is used to abut against the spline shaft body (9).

6. The multi-motor tension fitness structure according to claim 1, characterized in that: The reducer structure is a planetary reducer, a pulley reducer, a harmonic reducer, a flexible wheel reducer or a link reducer.

7. The multi-motor tension fitness structure according to claim 1, characterized in that: The fixing frame (1) comprises a fixing shaft (13), a positioning rod (14) detachably connected to the fixing shaft (13), and a locking piece (15) arranged on the positioning rod (14), wherein the locking piece (15) is used to limit the positioning rod (14) on an external bearing member; the stator units of the two tension fitness units are fixedly arranged on the fixing shaft (13).

8. The multi-motor tension fitness structure according to claim 7, characterized in that: There are two positioning rods (14) and two locking pieces (15). The two positioning rods (14) are respectively connected to two ends of the fixed shaft (13) that are away from each other, and the two locking pieces (15) are respectively arranged on one end of the positioning rod (14) that is away from the fixed shaft (13).

9. The multi-motor tension fitness structure according to claim 8, characterized in that: Threaded columns are provided at both ends of the fixed shaft (13), and the positioning rod (14) is provided with an inner screw hole that is threadedly matched with the threaded columns. The outer sides of the threaded columns at both ends of the fixed shaft (13) are both threadedly sleeved with threaded sleeves, and the threaded sleeves are used to abut against the end surface of the positioning rod (14) to prevent the threaded column and the positioning rod (14) from loosening.

10. The multi-motor tension fitness structure according to claim 9, characterized in that: The locking member (15) comprises an assembly block (16) connected to one end of the positioning rod (14) away from the fixed axis (13), and an extrusion block (17) movably matched with the assembly block (16); the assembly block (16) comprises a first inclined surface (18); the extrusion block (17) comprises a second inclined surface (19) fitted with the first inclined surface (18); the angle between the second inclined surface (19) and the horizontal plane is an acute angle; the sum of the angle between the first inclined surface (18) and the horizontal plane and the angle between the second inclined surface (19) and the horizontal plane is 180°; the extrusion block (17) is provided with a positioning column (20); the assembly block (16) comprises a guide sliding hole (21) for accommodating the positioning column (20); and the extrusion block (17) is used to contact an external door frame.

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