Magnetic control resistance type leg lifting machine

Abstract

The invention discloses a magnetic control resistance type leg lifting machine, which comprises a base, an armrest frame, a seat frame group, a seat, two driving rods, a linkage mechanism, a magnetic control mechanism and a control mechanism, wherein the armrest frame and the seat frame group are respectively and vertically arranged on the front section and the rear section of the base, the seat is arranged on the seat frame group, and the two driving rods respectively swing around respective pivot points; the linkage mechanism is arranged on the base and used for enabling the two driving rods to conduct linkage swing motion in a front-back interaction mode under the linkage effect of the linkage mechanism, the two swing assemblies are arranged on the two sides of the base respectively, each swing assembly comprises a rear swing rod, a pivot joint piece and a lower swing rod, and the upper end of the rear swing rod of each swing assembly is in pivot joint with the first end of the driving rod on the corresponding side; and resistance is provided for the movement of the two lower oscillating rods through the magnetic control resistance mechanism. According to the magnetic control resistance mechanism, the multiple belt pulley sets are matched with the magnetic control wheel, the speed ratio can be increased, resistance can be increased, inertia can be generated when the magnetic control wheel rotates, and the magnetic control resistance mechanism is an exercise mode which is used by sporters in a habitual mode.

Description

Technical Field

[0001] The invention relates to the technical field of fitness equipment, and in particular to a magnetically controlled resistance type leg-lifting machine. Background Art

[0002] The existing document TWM469091U (application date: March 18, 2013) discloses a leg-lifting machine. The technical solution uses a chain drive, and its magnetically controlled resistance mechanism is a bidirectional eddy current structure and cannot generate inertia. On the one hand, due to the use of the chain, it is difficult to assemble, the assembly efficiency is low, and the assembly time is long. On the other hand, the magnetically controlled resistance mechanism without mechanical inertia is significantly different from the existing ordinary fitness equipment with mechanical inertia, which leads to the disadvantage that users are not used to it in the early stage of use. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a magnetically controlled resistance type leg-lifting machine, which mainly solves the technical problems that the existing leg-lifting machine uses a chain drive, which makes it difficult to assemble, and uses a magnetically controlled resistance mechanism without mechanical inertia, which makes users uncomfortable to use.

[0004] To achieve the above object, the present invention is achieved through the following technical solutions: A magnetically controlled resistance type leg-lifting machine, comprising: A base, a handrail frame and a seat frame assembly are respectively provided at the front and rear sections of the base, and a connecting rod is connected between the handrail frame and the seat frame assembly; A seat, the seat is arranged on the seat frame assembly; Two driving rods, two ends of the driving rods respectively form a first end and a second end, the two driving rods are respectively pivotally connected to the two sides of the seat frame assembly with the first end, and respectively swing around their respective pivot points, and the second ends of the two driving rods are respectively pivotally connected to a pedal; A linkage mechanism includes a swing seat and two linkage rods, the swing seat is pivotally connected to the seat frame assembly, the lower ends of the two linkage rods are respectively pivotally connected to the left and right sides of the swing seat, and the upper ends of the two linkage rods are respectively pivotally connected to the first end portions of the two driving rods, so that the two driving rods are linked to swing back and forth under the linkage action of the linkage mechanism; Two swing assemblies are respectively arranged on two sides of the base, the swing assemblies include a rear swing rod, a pivot member and a lower swing rod, the upper end of the rear swing rod of the swing assembly is pivotally connected to the first end of the driving rod on the corresponding side, the pivot member is pivotally connected to the seat frame assembly in a swingable manner, and the lower end of the rear swing rod and the rear end of the lower swing rod are respectively pivotally connected to the pivot member; The cam is an adjustable gear wheel, and the adjustable gear wheel has an axially-adjustable limit stop, and the cam is an adjustable gear wheel with an axially-adjustable limit stop, and the cam is an adjustable gear wheel with an axially-adjustable limit stop, and the cam is an adjustable gear wheel with an axially-adjustable limit stop, and the cam is an adjustable gear wheel with an axially-adjustable limit stop, and the cam is an adjustable gear wheel with an axially-adjustable limit stop, and the cam is an adjustable gear wheel with an axially-adjustable limit stop, and the cam is an adjustable gear wheel with an axially-adjustable limit stop, and the cam is an adjustable gear wheel with an axially-adjustable limit stop, and the cam is an adjustable gear wheel with an axially-adjustable limit stop, and the cam is an adjustable gear wheel with an axially-adjustable limit stop, and the cam is an adjustable gear wheel with an axially-adjustable limit stop, and the cam is an adjustable gear wheel with an axially-adjustable limit stop,

[0005] Furthermore, the seat frame assembly includes a front upright pole and a rear upright pole, the seat is connected to the front upright pole, and the swing seat is pivotally connected to the rear upright pole.

[0006] Furthermore, a handrail is connected to the handrail frame, and a support rod is connected between the handrail frame and the base.

[0007] Furthermore, a pivot ear is extended from the first end of the driving rod, and the upper end of the linkage rod and the upper end of the rear swing rod are pivotally connected to the pivot ear with the same axis.

[0008] Furthermore, a magnetic member is provided in the magnetic seat for use in conjunction with the magnetic control wheel to generate magnetic control resistance.

[0009] Furthermore, the first pulley, the first rotating wheel, the second pulley and the fourth rotating wheel are configured to be pivoted on the connecting rod of the base, and the second rotating wheel, the third pulley, the third rotating wheel and the magnetic control wheel are configured to be pivoted on the armrest frame of the base, and the magnetic seat is movably connected to the armrest frame in an adjustable position, and the magnetic control resistance of the magnetic control resistance mechanism is changed by adjusting the distance of the magnetic seat relative to the periphery of the magnetic control wheel.

[0010] Furthermore, a controller is provided on the handrail frame, and the controller pulls the magnetic seat via a rope to make the magnetic seat swing, thereby adjusting the distance between the magnetic seat and the periphery of the magnetic control wheel.

[0011] Furthermore, a first idler wheel adjustment assembly is provided on the connecting rod to press and tension the first transmission belt, and a second idler wheel adjustment assembly and a third idler wheel adjustment assembly are provided on the handrail frame to press and tension the second transmission belt and the third transmission belt respectively.

[0012] Furthermore, a swing handle is pivotally mounted on each side of the support rod, and the lower ends of the two swing handles are pivotally connected to the front end of a pivot rod, and the rear ends of the two pivot rods are pivotally connected to the free ends of the cranks on the corresponding sides.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] The magnetically controlled resistance leg-lifting machine described in the present invention does not use chain transmission, and the connecting rod-type linkage mechanism is quick and easy to assemble, with low component and assembly costs and a low price for the entire machine, which is easily favored by consumers. In addition, the multiple pulley groups of the magnetically controlled resistance mechanism are matched with the magnetically controlled wheels, which can expand the speed ratio, increase resistance, have high stability and are easy to adjust and maintain. Moreover, the magnetically controlled wheels will generate inertia when rotating, which is a sports mode that athletes are more accustomed to using. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure from another angle of the first embodiment of the present invention.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure decomposition of the first embodiment of the present invention.

[0018] Figure 4 It is a rear view of the linkage mechanism of the first embodiment of the present invention (with the rear upright rod hidden).

[0019] Figure 5 It is an enlarged view of the local structure of the first embodiment of the present invention.

[0020] Figure 6 It is an enlarged view of the local structure of the first embodiment of the present invention from another angle.

[0021] Figure 7 It is a schematic diagram of the use status of the first embodiment of the present invention.

[0022] Figure 8 It is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention.

[0023] Fig. 9 It is a schematic diagram of the three-dimensional structure from another angle of the second embodiment of the present invention.

[0024] Fig.10 It is a schematic diagram of the three-dimensional structure decomposition of the second embodiment of the present invention.

[0025] Fig.11 It is a schematic diagram of the use status of the second embodiment of the present invention.

[0026] Description of labels:

[0027] 10. base, 11. armrest frame, 12. seat frame group, 13. connecting rod, 14. support rod, 15. armrest, 16. front cross bar, 17. rear cross bar, 18. control panel, 19. seat, 20. drive rod, 30. pedal, 40. linkage mechanism, 41. swing seat, 42. linkage rod, 50. swing assembly, 51. swing rod, 52. pivot member, 53. lower swing rod, 60. magnetic control resistance mechanism, 61. first pulley, 62. first rotating wheel, 63. first transmission belt, 64. second belt Wheel, 65, second rotating wheel, 66, second transmission belt, 67, third pulley, 68, third rotating wheel, 69, third transmission belt, 70, fourth rotating wheel, 71, magnetic control wheel, 72, magnetic seat, 74, crank, 81, first idler adjustment assembly, 82, second idler adjustment assembly, 83, third idler adjustment assembly, 90, swing grip, 91, pivot rod, 100, controller, 121, front vertical rod, 122, rear vertical rod, 201, first end portion, 202, second end portion, 203, pivot ear. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Embodiment 1

[0031] Please refer to the attached Figure 1 To Attachment Figure 7 One embodiment of the present invention provides a magnetically controlled resistance-type leg-lifting machine, comprising: A base 10, a handrail frame 11 and a seat frame group 12 are respectively erected on the front and rear sections of the base 10, a connecting rod 13 is connected between the handrail frame 11 and the seat frame group 12, and a front cross bar 16 and a rear cross bar 17 are respectively connected to the front and rear ends of the base 10, and the base 10 can be stably placed on the ground through the support of the front cross bar 16 and the rear cross bar 17, and a control panel 18 is also arranged on the handrail frame 11; A seat 19, the seat 19 is arranged on the seat frame assembly 12; Two driving rods 20, the two ends of the driving rods 20 respectively form a first end 201 and a second end 202, the two driving rods 20 are respectively pivoted to the two sides of the seat frame assembly 12 with the first end 201, and respectively swing around their respective pivot points, and the second ends 202 of the two driving rods 20 are respectively pivoted to a pedal 30; A linkage mechanism 40, comprising a swing seat 41 and two linkage rods 42, the swing seat 41 is pivoted to the seat frame assembly 12, the lower ends of the two linkage rods 42 are respectively pivoted to the left and right sides of the swing seat 41, and the upper ends of the two linkage rods 42 are respectively pivoted to the first end portions 201 of the two driving rods 20, so that the two driving rods 20 are linked to swing back and forth under the linkage action of the linkage mechanism 40; Two swing assemblies 50 are respectively arranged on two sides of the base 10, and the swing assemblies 50 include a rear swing rod 51, a pivot member 52 and a lower swing rod 53. The upper end of the rear swing rod 51 of the swing assembly 50 is pivotally connected to the first end 201 of the driving rod 20 on the corresponding side, and the pivot member 52 is pivotally connected to the seat frame assembly 12. The lower end of the rear swing rod 51 and the rear end of the lower swing rod 53 are pivotally connected to the pivot member 52 respectively; A magnetic control resistance mechanism 60 is arranged at the front section of the base 10, and at least includes a first pulley 61, a first rotating wheel 62, a third pulley 67, a third rotating wheel 68 pivoted on one side of the base 10, and a second pulley 64, a second rotating wheel 65, a fourth rotating wheel 70, a magnetic control wheel 71 and a magnetic seat 72 corresponding to the periphery of the magnetic control wheel 71 pivoted on the other side of the base 10, wherein the first rotating wheel 62 and the second pulley 64 are arranged to rotate on the same axis, the second rotating wheel 65 and the third pulley 67 are arranged to rotate on the same axis, and the third rotating wheel 68 and the magnetic control wheel 71 are arranged to rotate on the same axis. 1 is arranged to rotate with the same axis, the first pulley 61 and the first rotating wheel 62 are jointly wrapped around a first transmission belt 63, the second pulley 64 and the second rotating wheel 65 are jointly wrapped around a second transmission belt 66, the third pulley 67 and the third rotating wheel 68 are jointly wrapped around a third transmission belt 69, the first pulley 61 and the fourth rotating wheel 70 are arranged to rotate with the same axis, and the first pulley 61 and the fourth rotating wheel 70 are respectively connected to a crank 74, and the free end of each crank 74 is connected to the front end of the lower swing rod 53 on the corresponding side, and the magnetic control resistance mechanism 60 provides resistance for the movement of the two lower swing rods 53. Preferably, in one of the preferred embodiments, a first idler adjustment assembly 81 is arranged on the connecting rod 13 to press and tension the first transmission belt 63, and a second idler adjustment assembly 82 and a third idler adjustment assembly 83 are arranged on the handrail frame 11 to press and tension the second transmission belt 66 and the third transmission belt 69 respectively.

[0032] Please refer to the attached Figure 1 To Attachment Figure 7In one preferred embodiment, the seat frame assembly 12 includes a front upright rod 121 and a rear upright rod 122, the seat 19 is connected to the front upright rod 121, and the swing seat 41 is pivotally connected to the rear upright rod 122. The armrest frame 11 is connected to an armrest 15, and a support rod 14 is connected between the armrest frame 11 and the base 10.

[0033] Please refer to the attached Figure 1 To Attachment Figure 7 In one preferred embodiment, a pivot ear 203 is extended from the first end portion 201 of the driving rod 20, and the upper end of the connecting rod 42 and the upper end of the rear swing rod 51 are pivotally connected to the pivot ear 203 with the same axis.

[0034] Please refer to the attached Figure 1 To Attachment Figure 7 In one preferred embodiment, a magnetic member is provided inside the magnetic seat 72 for use with the magnetic control wheel 71 to generate magnetic control resistance.

[0035] Please refer to the attached Figure 1 To Attachment Figure 7 In one preferred embodiment, the first pulley 61, the first rotating wheel 62, the second pulley 64 and the fourth rotating wheel 70 are configured to be pivoted on the connecting rod 13 of the base 10, and the second rotating wheel 65, the third pulley 67, the third rotating wheel 68 and the magnetic control wheel 71 are configured to be pivoted on the armrest frame 11 of the base 10, and the magnetic seat 72 is movably connected to the armrest frame 11 in an adjustable position, and the magnetic control resistance of the magnetic control resistance mechanism 60 is changed by adjusting the distance between the magnetic seat 72 and the periphery of the magnetic control wheel 71.

[0036] Please refer to the attached Figure 1 To Attachment Figure 7 In one preferred embodiment, a controller 100 is provided on the armrest 11, and the controller 100 pulls the magnetic base 72 via a rope to make the magnetic base 72 swing, thereby adjusting the distance between the magnetic base 72 and the periphery of the magnetic control wheel 71.

[0037] The specific method of using the magnetically controlled resistance leg-lifting machine of the present embodiment is as follows: when using it, hold the armrests 15 with both hands and step on the pedals 30 with both feet, and sit on the seat 19 to perform alternating leg-lifting movements. At this time, the linkage mechanism 40 on the rear upright 122 swings symmetrically left and right, so that the two drive rods 20 swing in an arc trajectory with opposite limiting positions to each other; at the same time, when the two drive rods 20 swing, they will sequentially link the rear swing rod 51, the pivot 52, and the lower swing rod 53 of the swing assembly 50, and then link all the components of the magnetically controlled resistance mechanism 60 to rotate, and the magnetic attraction of the magnetic seat 72 generates resistance to the rotation of the magnetically controlled wheel 71, and the larger speed ratio generated by the above-mentioned multiple pulley groups is reversely fed back to the two drive rods 20 in sequence, so that the athlete feels greater resistance when applying force to swing the two drive rods 20, so as to achieve a fitness effect for the legs.

[0038] In this embodiment, the interactive leg-lifting action can be used to effectively stretch the hip, knee, and ankle joints, and stretch the core muscles such as the abdomen and buttocks. No chain drive is used, and the connecting rod-type linkage mechanism 40 is quick and easy to assemble, with low component and assembly costs. The price of the whole machine is quite competitive and is easily favored by consumers. The magnetically controlled resistance mechanism 60 is a multiple pulley group with a magnetically controlled wheel 71, which can increase the speed ratio, increase resistance, have high stability and are easy to adjust and maintain; and the magnetically controlled wheel 71 has inertia when rotating, which is a sports mode that athletes are more accustomed to using.

[0039] Embodiment 2

[0040] Please refer to the attached Figure 8 To Attachment Fig.11 The difference between this embodiment and the first embodiment is that a swing grip 90 is pivotally provided on both sides of the support rod 14, and the lower ends of the two swing grips 90 are pivotally connected to the front end of a pivot rod 91, and the rear ends of the two pivot rods 91 are pivotally connected to the free ends of the cranks 74 on the corresponding sides. In this embodiment, a swing grip 90 is added to both sides of the handrail frame 11 for holding with both hands, and the two swing grips 90 are also alternately swung forward and backward by the swing of the crank 74. In this embodiment, the hands can be alternately swung forward and backward to stretch the forearms, upper arms, triceps and other muscle groups.

[0041] As described above, the embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements do not deviate the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

Claims

1. A magnetically controlled resistance leg-lifting machine, It is characterized in that include: A base (10), a handrail frame (11) and a seat frame assembly (12) are respectively erected on the front and rear sections of the base (10), and a connecting rod (13) is connected between the handrail frame (11) and the seat frame assembly (12); A seat (19), the seat (19) is arranged on the seat frame assembly (12); Two driving rods (20), the two ends of the driving rods (20) respectively forming a first end (201) and a second end (202), the two driving rods (20) are respectively pivotally connected to the two sides of the seat frame assembly (12) with the first end (201), and respectively swing around their respective pivot points, and the second ends (202) of the two driving rods (20) are respectively pivotally connected to a pedal (30); A linkage mechanism (40) comprises a swing seat (41) and two linkage rods (42), wherein the swing seat (41) is pivotally connected to the seat frame assembly (12), the lower ends of the two linkage rods (42) are respectively pivotally connected to the left and right sides of the swing seat (41), and the upper ends of the two linkage rods (42) are respectively pivotally connected to the first end portions (201) of the two driving rods (20), so that the two driving rods (20) perform a linkage swinging motion in a forward and backward alternating manner under the linkage action of the linkage mechanism (40); Two swing assemblies (50) are respectively arranged on two sides of the base (10), the swing assemblies (50) comprising a rear swing rod (51), a pivot member (52) and a lower swing rod (53), the upper end of the rear swing rod (51) of the swing assembly (50) is pivotally connected to the first end (201) of the driving rod (20) on the corresponding side, the pivot member (52) is pivotally connected to the seat frame assembly (12), and the lower end of the rear swing rod (51) and the rear end of the lower swing rod (53) are respectively pivotally connected to the pivot member (52); A magnetic control resistance mechanism (60) is arranged at the front section of a base (10), and at least comprises a first pulley (61) pivotally arranged on one side of the base (10), a first rotating wheel (62), a third pulley (67), a third rotating wheel (68) and a second pulley (64) pivotally arranged on the other side of the base (10), a second rotating wheel (65), a fourth rotating wheel (70), a magnetic control wheel (71) and a magnetic seat (72) arranged corresponding to the periphery of the magnetic control wheel (71), wherein the first rotating wheel (62) and the second pulley (64) are arranged to rotate about the same axis, the second rotating wheel (65) and the third pulley (67) are arranged to rotate about the same axis, and the third rotating wheel (68) and the magnetic control wheel (71) are arranged to rotate about the same axis. The first pulley (61) and the first rotating wheel (62) are arranged to rotate about the same axis, the first pulley (61) and the first rotating wheel (62) are jointly wrapped around a first transmission belt (63), the second pulley (64) and the second rotating wheel (65) are jointly wrapped around a second transmission belt (66), the third pulley (67) and the third rotating wheel (68) are jointly wrapped around a third transmission belt (69), the first pulley (61) and the fourth rotating wheel (70) are arranged to rotate about the same axis, and the first pulley (61) and the fourth rotating wheel (70) are respectively connected to a crank (74), the free end of each crank (74) is connected to the front end of the lower swing rod (53) on the corresponding side, and the magnetic control resistance mechanism (60) provides resistance for the movement of the two lower swing rods (53).

2. The magnetically controlled resistance leg-lifting machine according to claim 1, Features: The seat frame assembly (12) comprises a front upright rod (121) and a rear upright rod (122), the seat (19) is connected to the front upright rod (121), and the swing seat (41) is pivotally connected to the rear upright rod (122).

3. The magnetic resistance leg-lifting machine according to claim 1, Features: A handrail (15) is connected to the handrail frame (11), and a support rod (14) is connected between the handrail frame (11) and the base (10).

4. The magnetic resistance leg-lifting machine according to claim 1, Features: A pivot ear (203) is extended from the first end portion (201) of the driving rod (20), and the upper end of the linkage rod (42) and the upper end of the rear swing rod (51) are pivotally connected to the pivot ear (203) at the same axis.

5. The magnetic resistance leg lift machine according to claim 1, Features: A magnetic member is arranged inside the magnetic seat (72) and is used in conjunction with the magnetic control wheel (71) to generate magnetic control resistance.

6. The magnetically controlled resistance leg-lifting machine according to claim 1, Features: The first pulley (61), the first rotating wheel (62), the second pulley (64) and the fourth rotating wheel (70) are configured to be pivotally mounted on the connecting rod (13) of the base (10), and the second rotating wheel (65), the third pulley (67), the third rotating wheel (68) and the magnetic control wheel (71) are configured to be pivotally mounted on the handrail frame (11) of the base (10), and the magnetic seat (72) is movably connected to the handrail frame (11) in an adjustable position, and the magnetic control resistance of the magnetic control resistance mechanism (60) is changed by adjusting the distance between the magnetic seat (72) and the periphery of the magnetic control wheel (71).

7. The magnetically controlled resistance leg-lifting machine according to claim 6, Features: A controller (100) is arranged on the handrail frame (11), and the controller (100) pulls the magnetic seat (72) via a rope to make the magnetic seat (72) swing, thereby adjusting the distance between the magnetic seat (72) and the periphery of the magnetic control wheel (71).

8. The magnetically controlled resistance leg-lifting machine according to claim 1, Features: A first idler wheel adjustment assembly (81) is arranged on the connecting rod (13) to press and tighten the first transmission belt (63), and a second idler wheel adjustment assembly (82) and a third idler wheel adjustment assembly (83) are arranged on the handrail frame (11) to press and tighten the second transmission belt (66) and the third transmission belt (69) respectively.

9. The magnetically controlled resistance leg-lifting machine according to claim 1, Features: A swing handle (90) is pivotally mounted on both sides of the support rod (14), and the lower ends of the two swing handles (90) are pivotally connected to the front end of a pivot rod (91), and the rear ends of the two pivot rods (91) are pivotally connected to the free ends of the cranks (74) on the corresponding sides.

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